{"id":19,"date":"2025-09-24T20:45:27","date_gmt":"2025-09-24T11:45:27","guid":{"rendered":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?page_id=19"},"modified":"2026-03-31T17:16:44","modified_gmt":"2026-03-31T08:16:44","slug":"home","status":"publish","type":"page","link":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/","title":{"rendered":"Home"},"content":{"rendered":"\n<div class=\"wp-block-columns alignwide are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top content_area is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<section id=\"featured\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Featured Research<\/h2>\n\n\n<div class=\"wp-block-query is-layout-flow wp-block-query-is-layout-flow\">\n  <ul class=\"columns-2 query_featured wp-block-post-template has-background has-theme-lightgray-background-color is-layout-grid wp-container-core-post-template-is-layout-d94fdf01 wp-block-post-template-is-layout-grid\">\n    <li id=\"a202604fa001\" class=\"wp-block-post post-468 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-ai tag-concrete-engineering tag-non-destructive-inspection content_type-articles content_issue-vol0002-2026 content_field-civil-engineering content_year-347\">\n      <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n        <div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover has-custom-content-position post_thumb has-aspect-ratio\">\n          <span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-0 has-background-dim\"><\/span>\n          <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/featured_01_07-800x533.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\">\n          <div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n            <div class=\"taxonomy-content_type has-text-align-center has-link-color wp-block-post-terms has-background has-theme-black-background-color\">\n              <a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?content_type=articles\" rel=\"tag\">Articles<\/a>            <\/div>\n            <a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fa001\/\" target=\"_self\">more<span class=\"screen-reader-text\">\u8a18\u4e8b\u3092\u8aad\u3080<\/span><\/a>\n          <\/div>\n        <\/div>\n        <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fa001\/\" target=\"_self\">Impact-echo for different level cracks detection in concrete with artificial intelligence based on un\/supervised deep learning<\/a><\/h3>\n        <div class=\"wp-block-post-excerpt\">\n          <p class=\"wp-block-post-excerpt__excerpt\">Aging concrete infrastructure such as bridges and tunnels requires effective inspection to ensure safety and durability, particularly for detecting invisible internal cracks subjected to structural integrity. Impact-echo, which is one of non-destructive testing methods, is widely used but costly and time-consuming with relying on skilled and experienced analysis. This study integrates AI with impact-echo data to improve crack detection. Supervised deep learning using FFT-transformed signals enables accurate classification of multiple crack levels, including intact condition of concrete. However, data labeling for each existing structures is impractical, so an unsupervised approach using an auto-encoder is proposed to identify internal crack levels through anomaly-based indices without labeled data.<\/p>\n        <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Jeero Pandum, <a href=\"https:\/\/researchmap.jp\/ktfmhsmt?lang=en\" target=\"_blank\" rel=\"noopener\">Katsufumi Hashimoto<\/a>, Takafumi Sugiyama, Wanchai Yodsudjai<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0950061825022317\" target=\"_blank\" rel=\"noopener\">Construction and Building Materials 487 142080<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/li>\n\n    <li id=\"a202604fa002\" class=\"wp-block-post post-467 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-combustion tag-fire-safety tag-flame-retardant content_type-articles content_issue-vol0002-2026 content_field-mechanical-and-aerospace-engineering content_year-347\">\n      <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n        <div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover has-custom-content-position post_thumb has-aspect-ratio\">\n          <span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-0 has-background-dim\"><\/span>\n          <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/featured_02_03-800x533.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\">\n          <div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n            <div class=\"taxonomy-content_type has-text-align-center has-link-color wp-block-post-terms has-background has-theme-black-background-color\">\n              <a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?content_type=articles\" rel=\"tag\">Articles<\/a>            <\/div>\n            <a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fa002\/\" target=\"_self\">more<span class=\"screen-reader-text\">\u8a18\u4e8b\u3092\u8aad\u3080<\/span><\/a>\n          <\/div>\n        <\/div>\n        <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fa002\/\" target=\"_self\">Effect of flow residence time on the flame-retardant performance of fluorine-based flame retardant: Comparison of blowoff limits of CH\u2082F\u2082 and CH\u2084<\/a><\/h3>\n        <div class=\"wp-block-post-excerpt\">\n          <p class=\"wp-block-post-excerpt__excerpt\">The article investigates the combustion characteristics of hydrofluorocarbon (HFC) and hydrocarbon (HC) fuels to understand the increased flammability of fluoropolymers like ETFE under microgravity. Key findings: CH\u2082F\u2082 exhibits minimal sensitivity of blowoff limit to oxygen, unlike CH\u2084. CH\u2082F\u2082 flames have lower temperatures and suppressed H and OH radical formation, due to dominant HF-producing pathways inhibiting radical chain reactions. Despite susceptibility to blowoff, CH\u2082F\u2082 maintains high adiabatic flame temperature, allowing combustion at low oxygen if sufficient residence time is provided.  <\/p>\n        <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/scholar.google.com\/citations?user=3UOupVsAAAAJ&amp;hl=ja\" target=\"_blank\" rel=\"noopener\">Yusuke Konno<\/a>, Ayuto Ota, <a href=\"https:\/\/scholar.google.com\/citations?user=ZeAH_08AAAAJ&amp;hl=ja\" target=\"_blank\" rel=\"noopener\">Nozomu Hashimoto<\/a>, and <a href=\"https:\/\/scholar.google.com\/citations?user=PYx5i2UAAAAJ&amp;hl=ja\" target=\"_blank\" rel=\"noopener\">Osamu Fujita<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0010218025006510?via%3Dihub\" target=\"_blank\" rel=\"noopener\">Combustion and Flame 284, 114614<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/li>\n\n    <li id=\"a202604fa003\" class=\"wp-block-post post-466 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-analytical-chemistry tag-geochemistry tag-soil-chemistry content_type-articles content_issue-vol0002-2026 content_field-environmental-engineering content_year-347\">\n      <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n        <div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover has-custom-content-position post_thumb has-aspect-ratio\">\n          <span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-0 has-background-dim\"><\/span>\n          <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/featured_04_01-800x533.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\">\n          <div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n            <div class=\"taxonomy-content_type has-text-align-center has-link-color wp-block-post-terms has-background has-theme-black-background-color\">\n              <a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?content_type=articles\" rel=\"tag\">Articles<\/a>            <\/div>\n            <a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fa003\/\" target=\"_self\">more<span class=\"screen-reader-text\">\u8a18\u4e8b\u3092\u8aad\u3080<\/span><\/a>\n          <\/div>\n        <\/div>\n        <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fa003\/\" target=\"_self\">Solid-phase fluorescence excitation-emission matrix spectroscopy of soil, fulvic acid fractions, and clay mineral complexes: Evidence from red shift of fluorescence maxima associated with aggregation<\/a><\/h3>\n        <div class=\"wp-block-post-excerpt\">\n          <p class=\"wp-block-post-excerpt__excerpt\">Most of the analysis of natural organic matter (humic substances) in soil is carried out in a solution state by an alkali extraction operation. However, this approach addresses concerns regarding the potential alteration of humic substances during alkaline extraction, which may cause these substances to lose their original structure. In this study, as a non-extraction and non-destructive method, solid-phase fluorescence (excitation-emission matrix) spectroscopy (SPF-EEM) was applied for the first time to a standard humic substance and its complex with clay. It was found that the excitation-emission wavelength could shift according to the state of solution, complex, aggregate, etc.<\/p>\n        <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/yukinakaya\" target=\"_blank\" rel=\"noopener\">Yuki Nakaya<\/a>, Takashi Hirose, Ryuichi Tamori, Nobuhide Fujitake, Satoru Nakashima, Hiroshi Yamamura, and Hisashi Satoh<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S001393512501151X?via%3Dihub\" target=\"_blank\" rel=\"noopener\">Environmental Research 279(2), 121900<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/li>\n\n    <li id=\"a202604fp001\" class=\"wp-block-post post-465 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-electrolysis tag-hydrogen tag-plasma content_type-projects content_issue-vol0002-2026 content_field-264 content_year-347\">\n      <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n        <div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover has-custom-content-position post_thumb has-aspect-ratio\">\n          <span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-0 has-background-dim\"><\/span>\n          <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/featured_20260327_img-800x724.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\">\n          <div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n            <div class=\"taxonomy-content_type has-text-align-center has-link-color wp-block-post-terms has-background has-theme-black-background-color\">\n              <a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?content_type=projects\" rel=\"tag\">Projects<\/a>            <\/div>\n            <a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fp001\/\" target=\"_self\">more<span class=\"screen-reader-text\">\u8a18\u4e8b\u3092\u8aad\u3080<\/span><\/a>\n          <\/div>\n        <\/div>\n        <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fp001\/\" target=\"_self\">Development of hydrogen production technology using plasma-assisted water electrolysis<\/a><\/h3>\n        <div class=\"wp-block-post-excerpt\">\n          <p class=\"wp-block-post-excerpt__excerpt\">In \u201ccontact glow discharge,\u201d an electrolytic reaction where plasma and water come into contact, phenomena where the Faraday efficiency exceeds 1 have been reported, but the reaction mechanism remains unclear. We aim to develop a plasma-driven electrolysis method that generates stable direct-current plasma in water, elucidate the mechanism behind the phenomenon where hydrogen production increases significantly compared to conventional electrolysis, and establish a highly efficient hydrogen production technology.<\/p>\n        <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/nshirai\" target=\"_blank\" rel=\"noopener\">Naoki Shirai<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/ja\/grant\/KAKENHI-PROJECT-25K21663\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Challenging Research (Pioneering)<\/a> 2025.6.27\uff5e2029.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/li>\n\n    <li id=\"a202510fa002\" class=\"wp-block-post post-255 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-mechanochemistry content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n      <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n        <div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover has-custom-content-position post_thumb has-aspect-ratio\">\n          <span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-0 has-background-dim\"><\/span>\n          <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articles0002-01-800x535.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\">\n          <div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n            <div class=\"taxonomy-content_type has-text-align-center has-link-color wp-block-post-terms has-background has-theme-black-background-color\">\n              <a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?content_type=articles\" rel=\"tag\">Articles<\/a>            <\/div>\n            <a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fa002\/\" target=\"_self\">more<span class=\"screen-reader-text\">\u8a18\u4e8b\u3092\u8aad\u3080<\/span><\/a>\n          <\/div>\n        <\/div>\n        <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fa002\/\" target=\"_self\">Mechanochemical activation of metallic lithium for the generation and application of organolithium compounds in air<\/a><\/h3>\n        <div class=\"wp-block-post-excerpt\">\n          <p class=\"wp-block-post-excerpt__excerpt\">Here we report a mechanochemical method for the direct generation of organolithium reagents from readily available organic halides and unactivated lithium metal (lithium wire) under bulk-solvent-free conditions. These reactions rapidly generate a diverse array of organolithium compounds at room temperature without special precautions against moisture and without temperature control.<\/p>\n        <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Kondo Keisuke, <a href=\"https:\/\/researchmap.jp\/kbt\" target=\"_blank\" rel=\"noopener\">Koji Kubota<\/a>, and Hajime Ito<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.nature.com\/articles\/s44160-025-00753-3\" target=\"_blank\" rel=\"noopener\">Nature Synthesis<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/li>\n\n    <li id=\"a202510fa001\" class=\"wp-block-post post-252 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-solid-electrolytes tag-synthesis content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n      <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n        <div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover has-custom-content-position post_thumb has-aspect-ratio\">\n          <span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-0 has-background-dim\"><\/span>\n          <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articlest0001-01-800x535.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\">\n          <div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n            <div class=\"taxonomy-content_type has-text-align-center has-link-color wp-block-post-terms has-background has-theme-black-background-color\">\n              <a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?content_type=articles\" rel=\"tag\">Articles<\/a>            <\/div>\n            <a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fa001\/\" target=\"_self\">more<span class=\"screen-reader-text\">\u8a18\u4e8b\u3092\u8aad\u3080<\/span><\/a>\n          <\/div>\n        <\/div>\n        <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fa001\/\" target=\"_self\">The Detail Matters: Unveiling Overlooked Parameters in the Mechanochemical Synthesis of Solid Electrolytes<\/a><\/h3>\n        <div class=\"wp-block-post-excerpt\">\n          <p class=\"wp-block-post-excerpt__excerpt\">\"Simply mixing the reagents by hand for a short time in a mortar and pestle before mechanochemical synthesis dramatically improves the performance of the solid electrolyte.\nHand mixing changes the crystallization behavior, improving the ionic conductivity of the solid electrolyte by up to an order of magnitude.\nThis discovery will accelerate the search for efficient and logical new electrolyte materials, and ultimately the development of all-solid-state batteries.\"<\/p>\n        <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Abdulkadir K\u0131z\u0131laslan, Mustafa C\u0327elik, Yuta Fujii, Zheng Huang, Chikako Moriyoshi, Shogo Kawaguchi, Satoshi Hiroi, Koji Ohara, Mariko Ando, Kiyoharu Tadanaga, Saneyuki Ohno, and <a href=\"https:\/\/scholar.google.co.jp\/citations?user=_vPBvrAAAAAJ&amp;hl=en\" target=\"_blank\" rel=\"noopener\">Akira Miura<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acsenergylett.4c02156\" target=\"_blank\" rel=\"noopener\">ACS Energy Lett. 2025, 10, 1, 156\u2013160<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/li>\n\n    <li id=\"a202510fp002\" class=\"wp-block-post post-257 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-electron-temperature tag-euv-lithography tag-laser-produced-plasma tag-laser-thomson-scattering tag-plasma-diagnostics content_type-projects content_issue-vol0001-2025 content_field-264 content_year-347\">\n      <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n        <div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover has-custom-content-position post_thumb has-aspect-ratio\">\n          <span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-0 has-background-dim\"><\/span>\n          <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/kt_20251001_img01-800x534.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\">\n          <div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n            <div class=\"taxonomy-content_type has-text-align-center has-link-color wp-block-post-terms has-background has-theme-black-background-color\">\n              <a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?content_type=projects\" rel=\"tag\">Projects<\/a>            <\/div>\n            <a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp002\/\" target=\"_self\">more<span class=\"screen-reader-text\">\u8a18\u4e8b\u3092\u8aad\u3080<\/span><\/a>\n          <\/div>\n        <\/div>\n        <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp002\/\" target=\"_self\">Research and Development of Core Technologies for Next-Generation Semiconductor Microfabrication<\/a><\/h3>\n        <div class=\"wp-block-post-excerpt\">\n          <p class=\"wp-block-post-excerpt__excerpt\">In April 2025, an R&D project for innovative fundamental technologies considered essential for the further development of next-generation semiconductor technologies has been launched, bringing together institutions and human resources with cutting-edge technologies related to EUV lithography (the overall principal investigator is Katsumi Midorikawa, special advisor to RIKEN). The research topics will mainly be the development of new lasers, mirrors for EUV, and laser microfabrication technology for back-end processing. In this project, Tomita will be responsible for the development of measurement and optimization techniques for the plasma for EUV light sources generated by the laser.<\/p>\n        <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/tomita_kentaro\" target=\"_blank\" rel=\"noopener\">Kentaro Tomita<\/a>, and Katsumi Midorikawa<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.jst.go.jp\/k-program\/program\/oudan1.html\" target=\"_blank\" rel=\"noopener\">Key and Advanced Technology R&amp;D through Cross Community (Collaboration Program)<\/a> 2025.4.1\uff5e2027.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/li>\n\n    <li id=\"a202510fp001\" class=\"wp-block-post post-256 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-drinking-water-treatment tag-norovirus tag-virus-like-particle content_type-projects content_issue-vol0001-2025 content_field-environmental-engineering content_year-347\">\n      <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n        <div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover has-custom-content-position post_thumb has-aspect-ratio\">\n          <span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-0 has-background-dim\"><\/span>\n          <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-project0001-01-800x534.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\">\n          <div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n            <div class=\"taxonomy-content_type has-text-align-center has-link-color wp-block-post-terms has-background has-theme-black-background-color\">\n              <a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?content_type=projects\" rel=\"tag\">Projects<\/a>            <\/div>\n            <a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp001\/\" target=\"_self\">more<span class=\"screen-reader-text\">\u8a18\u4e8b\u3092\u8aad\u3080<\/span><\/a>\n          <\/div>\n        <\/div>\n        <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp001\/\" target=\"_self\">Creation of a Novel Evaluation Method for Assessing the Efficacy of Water Treatment Processes on Hard-to-Culture Viruses Without Relying on Conventional Cell Culture Approaches<\/a><\/h3>\n        <div class=\"wp-block-post-excerpt\">\n          <p class=\"wp-block-post-excerpt__excerpt\">This study aims to elucidate the removability of \"non-culturable\" viruses, such as norovirus, in water treatment processes\u2014whose behavior in such treatments remains completely unknown. In this study, virus-like particles (VLPs) composed of viral capsid proteins will be produced using genetic engineering techniques. By incorporating foreign genes into these VLPs using non-viral vector construction methods and applying them to water treatment experiments, we seek to establish a novel evaluation method for viral removability that does not rely on cultivation.<\/p>\n        <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/read0108461\" target=\"_blank\" rel=\"noopener\">Taku MATSUSHITA<\/a>, and Nobutaka SHIRASAKI<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/ja\/grant\/KAKENHI-PROJECT-25H00749\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Scientific Research(A)<\/a> 2025.4.1\uff5e2028.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/li>\n\n  <\/ul>\n<\/div>\n<!-- BLOCK: FEATURED_POST-PICKUP -->\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/\">More Featured<\/a><\/div>\n<\/div>\n<\/section>\n\n\n\n<section id=\"articles\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Selected Articles<\/h2>\n\n\n<div class=\"wp-block-query\">\n<ul class=\"query_content wp-block-post-template is-layout-flow wp-block-post-template-is-layout-flow\">\n  <li id=\"a202510sa001\" class=\"wp-block-post post-123 content_post type-content_post status-publish hentry tag-al tag-cfrp tag-electroplating tag-ionic-liquid content_type-articles content_issue-vol0001-2025 content_field-313 content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Carbon Fiber-reinforced Plastic Surface Modification by Al Electroplating in AlCl\u2083\u2013EmImCl Ionic Liquids<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>To improve the wear resistance of the CFRP surface, Al electroplating was formed on the surface in an ionic liquid and anodizing was also performed. The hardness of the anodized surface is improved to about seven times that of the substrate CFRP.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Naoki Kishi, Hisayoshi Matsushima, and <a href=\"https:\/\/researchmap.jp\/GTI917\" target=\"_blank\" rel=\"noopener\">Mikito Ueda<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.jstage.jst.go.jp\/article\/electrochemistry\/93\/3\/93_25-00008\/_article\/-char\/ja\/\" target=\"_blank\" rel=\"noopener\">Electrochemistry. 93, 037005<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa002\" class=\"wp-block-post post-130 content_post type-content_post status-publish hentry tag-alkali-activated-materials tag-lca tag-machine-learning tag-mix-design tag-performance-based-prediction content_type-articles content_issue-vol0001-2025 content_field-sustainable-resources-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Data-driven inverse mix design for sustainable alkali-activated materials<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Alkali-activated materials (AAMs) are promising alternatives to ordinary Portland cement (OPC), but standardized mix design approaches are limited. This study introduces a machine learning-based framework for inverse mix design of AAMs, predicting optimal mixes based on target properties and sustainability. The model considers eight key factors, including precursor reactivity, activator properties, and liquid-to-binder ratio.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>K. Kong, <a href=\"https:\/\/researchmap.jp\/read0069261\" target=\"_blank\" rel=\"noopener\">Kiyofumi Kurumisawa<\/a>, Chiharu Tokoro, Zhanzhao Li, and S. H. Chu<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.tandfonline.com\/doi\/abs\/10.1080\/21650373.2024.2416962\" target=\"_blank\" rel=\"noopener\">Journal of Sustainable Cement-Based Materials, Vol.13, pp.1857-1878<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa003\" class=\"wp-block-post post-132 content_post type-content_post status-publish hentry tag-co2-electrochemical-reductionco-evolutionlayered-double-hydroxidezinc-based-electrocatalyst content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">CO\u2082 electrochemical reduction by Zn-based layered double hydroxides: The role of structural trivalent metal ions<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Carbon dioxide electrochemical reduction (CO2ER) has attracted attention because of its potential to convert CO\u2082 into valuable chemical materials using renewable energy. In this study, we evaluated the electrocatalytic activity of Zn-Cr, Zn-Ga, and Zn-Al layered double hydroxides (LDHs) for CO2ER. We found that these LDHs exhibited CO2ER activity for CO evolution, and the type of M\u00b3\u207a in the Zn-based LDHs affected their CO2ER performance. This research was a collaboration with the University of Antwerp, Belgium, and the Institute of Ceramics and Glass, CSIC, Spain<\/p>\n\n\n\n<p><\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Ryosuke Nakazato, Keeko Matsumoto, Matthias Quintelier, Joke Hadermann, Nataly Carolina Rosero-Navarro, <a href=\"https:\/\/researchmap.jp\/amiura\" target=\"_blank\" rel=\"noopener\">Akira Miura<\/a>, and <a href=\"https:\/\/researchmap.jp\/Kiyoharu_Tadanaga\" target=\"_blank\" rel=\"noopener\">Kiyoharu Tadanaga<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.oceram.2025.100788\" target=\"_blank\" rel=\"noopener\">Open Ceramics, 22, 100788<\/a> (2025)<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa004\" class=\"wp-block-post post-134 content_post type-content_post status-publish hentry tag-crystals content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Achieving Chiral Crystallization through Tailored Silyl-Substituted Dipolar Molecular Designs<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>This study highlights the importance of introducing appropriate bulky shielding sites and interactive sites to achieve chiral crystallization and provides valuable guidance for designing chiral assemblies from achiral dipolar molecules.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Natsumi Hammyo, Takeharu Yonezawa, <a href=\"https:\/\/researchmap.jp\/read0103056\" target=\"_blank\" rel=\"noopener\">Hajime Ito<\/a>, and <a href=\"https:\/\/researchmap.jp\/MGJK_research\" target=\"_blank\" rel=\"noopener\">Mingoo Jin<\/a>.<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.cgd.5c00215\" target=\"_blank\" rel=\"noopener\">Crystal Growth &amp; Design<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa005\" class=\"wp-block-post post-136 content_post type-content_post status-publish hentry tag-mechanochemistry content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Solid-state aromatic nucleophilic fluorination: a rapid, practical, and environmentally friendly route to N-heteroaryl fluorides<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>A simple mechanochemical protocol for solid-state aromatic nucleophilic fluorination using potassium fluoride (KF) and quaternary ammonium salts was developed. This solid-state fluorination is fast and a variety of N-heteroaryl halides can be efficiently fluorinated within 1 h.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/kbt\" target=\"_blank\" rel=\"noopener\">Koji Kubota<\/a>, Tetsu Makino, Keisuke Kondo, Tamae Seo, Mingoo Jin, and <a href=\"https:\/\/researchmap.jp\/read0103056\" target=\"_blank\" rel=\"noopener\">Hajime Ito<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/pubs.rsc.org\/en\/content\/articlelanding\/2025\/gc\/d4gc06362g\" target=\"_blank\" rel=\"noopener\">Green Chemistry, 27, 1771<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa006\" class=\"wp-block-post post-138 content_post type-content_post status-publish hentry content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Understanding the active catalyst surface structure on Ru-doped Ni\/CeO\u2082 catalysts for CO\u2082 methanation<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Converting CO\u2082 into valuable compounds using renewable hydrogen is a promising strategy for achieving a decarbonized society. We previously demonstrated that Ni-based catalysts efficiently convert CO\u2082 into methane, the main component of city gas. In this study, we combined expertise in chemical engineering, computational chemistry, and physics to uncover the surface structure of the developed catalyst. These structural insights pave the way for improving catalyst performance and for designing advanced CO\u2082 conversion systems that contribute to a decarbonized future.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchers.general.hokudai.ac.jp\/search\/detail.html?systemId=8a81d2cc0e6f2229520e17560c007669&amp;lang=ja,\" target=\"_blank\" rel=\"noopener\">Shohei Tada<\/a>, Shunsuke Ogata, So Nishikawa, Harune Yamaguchi, Yamato Nakashima, Tetsuo Honma, Hirotsugu Hiramatsu, Masahiko Nishijima, Tatsuya Joutsuka, and <a href=\"https:\/\/researchers.general.hokudai.ac.jp\/search\/detail.html?systemId=2a9a83310acb38a2520e17560c007669&amp;lang=ja\" target=\"_blank\" rel=\"noopener\">Ryuji Kikuchi<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.ijhydene.2025.04.068\" target=\"_blank\" rel=\"noopener\">International Journal of Hydrogen Energy<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa007\" class=\"wp-block-post post-140 content_post type-content_post status-publish hentry tag-co-formation tag-co2-reduction tag-electrocatalyst tag-transition-metal-nitride content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Electrochemical CO\u2082 reduction reaction catalytic activity of zirconium nitrides synthesized by the urea-glass route using ZrCl\u2084 as a raw material<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>The development of electrochemical CO\u2082 reduction reaction (CO2RR) catalysts is crucial for converting CO\u2082 into valuable chemicals using surplus renewable energy. Carbon monoxide (CO) is widely studied due to its multiple applications. We prepared ZrN nanoparticles via the &#8220;urea-glass route.&#8221;, as a novel CO2RR catalyst, This preparation process resulted in the formation of a ZrN-carbon composite. CO2RR tests showed the formation of CO, as well as hydrogen, which was generated as a byproduct of the competing water electrolysis reaction. Despite the relatively low CO efficiency, we successfully confirmed the electrochemical CO2RR activity of the ZrN-carbon composite.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Kentaro Tabuchi, Shinji Noguchi, Ryosuke Nakazato, Keeko Matsumoto, <a href=\"https:\/\/researchmap.jp\/Yuta_Fujii\" target=\"_blank\" rel=\"noopener\">Yuta Fujii<\/a>, <a href=\"https:\/\/researchmap.jp\/amiura\" target=\"_blank\" rel=\"noopener\">Akira Miura<\/a>, and <a href=\"https:\/\/researchmap.jp\/Kiyoharu_Tadanaga\" target=\"_blank\" rel=\"noopener\">Kiyoharu Tadanaga<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.2109\/jcersj2.24102\" target=\"_blank\" rel=\"noopener\">J. Ceram. Soc. Jpn., 113[2], 47-51<\/a> (2025).<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa008\" class=\"wp-block-post post-142 content_post type-content_post status-publish hentry tag-helium-4 tag-pendant-droplet tag-superfluid content_type-articles content_issue-vol0001-2025 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Lack of Oscillatory Motion of Superfluid \u2074He During its Dripping from a Needle<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Although pendant droplets commonly exist in our daily lives, their dynamics are not fully understood. To obtain further understanding of its physics, we observed superfluid helium dripping from a thin needle by a high-speed camera. Superfluidity is an inviscid liquid state only happening in helium at low temperatures. The present study where we used a thin needle to eliminate the droplet&#8217;s remnant volume clearly demonstrated that the dissipation-less large oscillation observed in the previous experiments was crucial for the discretization of the dripping period which is novel phenomenon reflecting the anomalous fluid properties of superfluid helium.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/tomoyuki-tani\/?lang=japanese\" target=\"_blank\" rel=\"noopener\">Tomoyuki Tani<\/a>, Keigo Sawada, Keito Miyake, Shota Takamatsu, Ryota Yamane, Yuri Ishimoto, Ryuta Matsukawa, Yuki Aoki, and <a href=\"https:\/\/researchmap.jp\/read0069322\" target=\"_blank\" rel=\"noopener\">Ryuji Nomura<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/journals.jps.jp\/doi\/10.7566\/JPSJ.94.065001\" target=\"_blank\" rel=\"noopener\">Journal of the Physical Society of Japan, 94, 065001<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa009\" class=\"wp-block-post post-144 content_post type-content_post status-publish hentry tag-fe-analysis tag-post-earthquake-settlement tag-structure-degradation tag-structured-clay tag-tri-axial-tests content_type-articles content_issue-vol0001-2025 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Study on long-term subsidence of soft clay due to Niigata-ken Chuetsu-oki earthquake of 2007<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>In the 2007 Niigata-ken Chuetsu-oki Earthquake, ground liquefaction was severe in sandy areas, but long-term settlement occurred in soft clay in Kashiwazaki\u2019s Shinbashi district. Even without visible damage, the ground sank 71 mm over 14 years. We studied this by boring and testing soil samples, finding the clay to be soft and highly compressible. Using a specialized computer model (TS-CM), we successfully simulated the ground\u2019s behavior, showing that this type of clay is prone to long-term sinking after earthquakes due to water pressure buildup and delayed consolidation. These findings help predict future ground behavior in similar soils.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Yazhou Jiang, <a href=\"https:\/\/researchmap.jp\/kiso\" target=\"_blank\" rel=\"noopener\">Koichi Isobe<\/a>, Satoru Ohtsuka, and Toshiyuki Takahara<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.sandf.2024.101536\" target=\"_blank\" rel=\"noopener\">Soils and Foundations, 65(1): 101536, 2025.2.<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa010\" class=\"wp-block-post post-146 content_post type-content_post status-publish hentry tag-fem tag-footingless tag-hysteretic-shear-damper tag-integrated-bridge-pier tag-liquefaction tag-pile-foundation content_type-articles content_issue-vol0001-2025 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Seismic performance of a bridge pier integrated by multiple steel pipes with directly-connected piles using soil-water coupled with three-dimensional elasto-plastic finite element analysis<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>A new type of bridge support using connected steel pipes was tested to see if it performs as well as traditional designs during earthquakes. Small-scale shaking tests showed that it works just as well or even better. However, since only one type of shaking was tested, we are now using computer simulations to see how it reacts to different kinds of earthquake motions. This will help us better understand how safe and reliable this new bridge design is for the future.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Muhammad Mahmood Ul Hassan, <a href=\"https:\/\/researchmap.jp\/kiso\" target=\"_blank\" rel=\"noopener\">Koichi Isobe<\/a>, Yasumasa Soga, Yasuo Sawamura, Hiroki Sugiyama, and Masatsugu Shinohara<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.sandf.2025.101571\" target=\"_blank\" rel=\"noopener\">Soils and Foundations, 65(2): 101571, 2025.3.<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa011\" class=\"wp-block-post post-148 content_post type-content_post status-publish hentry content_type-articles content_issue-vol0001-2025 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Photoinduced Metal\u2013Insulator Phase Separation Depending on the Conformational Order of Molecules in \u03b2-(BEDT-TTF)\u2082I\u2083<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>In this study, the role of the conformational order of organic molecules in photo-induced phase separation (PIPS), which forms the basis for ultrafast switching devices, is investigated. The results show that PIPS occurs below 150 K in the partially ordered phase and below 75 K in the homogeneously ordered phase. This result implies that conformational order plays a crucial role in determining the temperature at which PIPS occurs, providing significant insight for room-temperature operation, which is essential for the practical application of devices.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Kensho Nagata, <a href=\"https:\/\/researchmap.jp\/maru6626\/\" target=\"_blank\" rel=\"noopener\">Satoshi Tsuchiya<\/a>, Koichi Nakagawa, Hiromi Taniguchi, and Yasunori Toda<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.7566\/jpsj.94.044701\" target=\"_blank\" rel=\"noopener\">Journal of the Physical Society of Japan 94, 044701<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa013\" class=\"wp-block-post post-152 content_post type-content_post status-publish hentry tag-adhesive-protein tag-magnetite tag-microplastics tag-removal content_type-articles content_issue-vol0001-2025 content_field-sustainable-resources-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Mussel Adhesive Protein-Assisted Magnetic Recovery of Microplastics from Aquatic Environments<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Mussel adhesive proteins can adhere to a wide range of materials, from iron (inorganic) to plastic (organic). By taking advantage of this adhesive property, we can form a composite of microplastics and magnetic microparticles, which can be magnetically recovered from an aqueous solution with an efficiency greater than 99%.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Anju Pilakka Veedu, <a href=\"https:\/\/researchmap.jp\/read0156345\" target=\"_blank\" rel=\"noopener\">Kazunori Nakashima<\/a>,* Takahiro Sato, Ami Sasabe, Keita Suzuki, Chikara Takano, and Satoru Kawasaki<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acsestwater.4c00726\" target=\"_blank\" rel=\"noopener\">ACS ES&amp;T Water, 5, 2087\u22122095 (2025)<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa014\" class=\"wp-block-post post-154 content_post type-content_post status-publish hentry tag-cement tag-concrete tag-interfacial-transition-zone-itz tag-nuclide-leaching tag-nuclides-contamination tag-recycled-aggregate content_type-articles content_issue-vol0001-2025 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Transport of radioactive elements in concrete due to utilization of recycled aggregate contaminated with nuclides<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>In the future, a huge amount of concrete waste will be generated in preparation for the demolition of nuclear power plants. From the perspective of rational processing and disposal, it is possible to reuse this waste, particularly waste with low levels of radioactivity, as recycled aggregate. Clarifying how radioactive materials migrate inside concrete is extremely important in building a safe and secure society.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Yingyao Tan, <a href=\"https:\/\/scholar.google.com\/citations?user=Yecj5uoAAAAJ&amp;hl=ja&amp;oi=ao\" target=\"_blank\" rel=\"noopener\">Takafumi Sugiyama<\/a>, <a href=\"https:\/\/researchmap.jp\/ktfmhsmt\" target=\"_blank\" rel=\"noopener\">Katsufumi Hashimoto<\/a>, and Junxiao Liu<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0950061825008372\" target=\"_blank\" rel=\"noopener\">Construction and Bulding Materials, Volume 471, 11 April 2025, 140689<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa015\" class=\"wp-block-post post-156 content_post type-content_post status-publish hentry tag-blob-model tag-composition-dependence tag-induction-time tag-methane-propane-mixed-gas-hydrate tag-nucleation-probability content_type-articles content_issue-vol0001-2025 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Nucleation probability of methane + propane mixed-gas hydrate depending on gas composition<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Natural gas hydrate contains large amounts of natural gas and is attracting attention as one of the future domestic resources, or as its storage and transportation medium. For its industrial use, it is one of the problems that the nucleation process is difficult to control. This study has revealed that the nucleation probability of methane + propane mixed-gas hydrate, as a mimic of natural-gas hydrate, depends on the composition. This result will help develop technology for industrial use of gas hydrates.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/www.researchgate.net\/profile\/Tsutomu-Uchida?ev=hdr_xprf\" target=\"_blank\" rel=\"noopener\">Tsutomu Uchida<\/a>, Masato Hayama, Motoi Oshima, and Kenji Yamazaki<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1021\/acs.energyfuels.4c06369\" target=\"_blank\" rel=\"noopener\">Energy &amp; Fuels, 39 (10), 4782-4789, 2025<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa016\" class=\"wp-block-post post-158 content_post type-content_post status-publish hentry tag-dynamic-mode-decomposition tag-fluid-structure-interaction tag-mode-sensing-approach tag-reconstruction content_type-articles content_issue-vol0001-2025 content_field-mechanical-and-aerospace-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Spatiotemporal mode extraction for fluid\u2013structure interaction using mode decomposition<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>We proposed a method to extract the spatiotemporal modes of structural deformation obtained from fluid-structure interaction analysis using Dynamic Mode Decomposition (DMD). By applying this method, it becomes possible to identify the dominant structural deformation modes in systems where fluid forces induce significant structural changes, such as flexible aeroshells.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/ytakahashi0109\" target=\"_blank\" rel=\"noopener\">Yusuke Takahashi<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0022460X24005662?via%3Dihub\" target=\"_blank\" rel=\"noopener\">Journal of Sound and Vibration, Vol. 597, Part A<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa017\" class=\"wp-block-post post-160 content_post type-content_post status-publish hentry tag-chemcatcher tag-eutrophication tag-harmful-algal-blooms tag-lake-barato tag-passive-sampling tag-vertical-horizontal-distribution content_type-articles content_issue-vol0001-2025 content_field-environmental-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Development of a novel in-sediment passive sampler for profiling orthophosphate and internal phosphorus release near the sediment\u2013water interface in a eutrophic lake<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>The release of orthophosphate (PO\u2084) from lake sediments is now recognized as an important phosphorus source that maintains lake eutrophication. Therefore, quantifying PO\u2084 release is important for lake management. In this study, we developed a novel sampler to determine the PO\u2084 flux from lake sediment. The sampler was installed at the sediment\u2013water interface (SWI) in a eutrophic lake. The vertical and horizontal PO\u2084 concentrations around the sampler were obtained. The obtained data enabled in situ quantification of the PO\u2084 fluxes at the SWI.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Kazuto Sano, Jumpei Ueda, <a href=\"https:\/\/researchmap.jp\/ahafuka\" target=\"_blank\" rel=\"noopener\">Akira Hafuka<\/a>, and Katsuki Kimura<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.watres.2025.123634\" target=\"_blank\" rel=\"noopener\">Water Research, 282, 123634<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa018\" class=\"wp-block-post post-162 content_post type-content_post status-publish hentry tag-carbonation tag-co2-absorption tag-hardened-cement-paste-powder tag-waste-concrete tag-water-to-cement-ratio tag-wet-dry-cycle content_type-articles content_issue-vol0001-2025 content_field-architecture content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Effect of Wet\u2212dry Cycles and Water-to-cement Ratios on Cement Paste Carbonation<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Cement production consumes a significant amount of energy and releases CO\u2082 emissions, while concrete waste can potentially reabsorb CO\u2082. This study examined the effect of relative humidity (especially wet-dry cycles) on the carbonation of hardened cement pastes. Wet\u2013dry cycles increased porosity and caused the decomposition of calcium silicate hydrate (C-S-H) through shrinkage and deformation during drying. As a result, the highest CO\u2082 absorption in the wet-dry cycle sample was twice that of the constant RH. Additionally, the amount of CO\u2082 captured during the 28-day wet-dry cycle accounted for about 17% of the annual CO\u2082 emissions from cement production.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Zhiwei Zhao, Dayoung Oh (<a href=\"https:\/\/researchmap.jp\/dayoung_oh\" target=\"_blank\" rel=\"noopener\">researchmap.jp<\/a>, <a href=\"https:\/\/www.researchgate.net\/profile\/Dayoung-Oh-3?ev=hdr_xprf\" target=\"_blank\" rel=\"noopener\">researchgate.net<\/a>, <a href=\"https:\/\/scholar.google.com\/citations?hl=en&amp;user=raQfqqIAAAAJ\" target=\"_blank\" rel=\"noopener\">scholar.google.com)<\/a>, <a href=\"https:\/\/www.researchgate.net\/profile\/Ryoma-Kitagaki\" target=\"_blank\" rel=\"noopener\">Ryoma Kitagaki<\/a>, Tianlong Zheng, and Ippei Maruyama<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.jstage.jst.go.jp\/article\/jact\/23\/4\/23_205\/_pdf\" target=\"_blank\" rel=\"noopener\">Journal of Advanced Concrete Technology, 23, 205-222<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa019\" class=\"wp-block-post post-164 content_post type-content_post status-publish hentry tag-ceramics tag-first-principles-calculation tag-fusion-reactor tag-hydrogen tag-hydrogen-embrittlement content_type-articles content_issue-vol0001-2025 content_field-center-for-advanced-research-of-energy-and-materials content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Unveiling the origin of diffusion suppression of hydrogen isotopes at the \u03b1-Al\u2082O\u2083(0001)\/\u03b1-Cr\u2082O\u2083(0001) interfaces<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Hydrogen in metallic materials causes degradation known as hydrogen embrittlement, which renders the materials brittle. Therefore, to promote the use of hydrogen energy in applications such as fuel cells and nuclear fusion reactors, strategies to prevent hydrogen permeation into structural materials are essential. In this study, we elucidated the mechanism by which coating multiple layers of different ceramic films on metal surfaces, which serve as hydrogen permeation barriers, can more effectively suppress hydrogen permeation than single-layer ceramic films. This research can contribute to extending the service life of metallic materials in a hydrogen environment.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/ykunisada\" target=\"_blank\" rel=\"noopener\">Yuji Kunisada<\/a>, Ryotaro Sano, and Norihito Sakaguchi<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.ijhydene.2024.12.027\" target=\"_blank\" rel=\"noopener\">International Journal of Hydrogen Energy, Volume 97, Pages 1327-1334<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa020\" class=\"wp-block-post post-167 content_post type-content_post status-publish hentry tag-ammonia tag-ammonia-droplet-evaporation tag-droplet-temperature tag-evaporation-rate tag-high-temperatures content_type-articles content_issue-vol0001-2025 content_field-mechanical-and-aerospace-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Investigation of Single Ammonia Droplet Evaporation Characteristics Under High Temperature and Pressure Conditions<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Ammonia is a promising alternative fuel for significantly reducing CO\u2082 emissions. However, to utilize it efficiently, it is necessary to develop technologies that enable direct spray combustion of liquid ammonia. In this study, we clarified\u2014for the first time in the world\u2014the evaporation characteristics of ammonia droplets under high-temperature and high-pressure conditions. Furthermore, we obtained essential droplet evaporation data necessary for the development of ammonia spray combustion technology.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Leang So Khuong, <a href=\"https:\/\/researchmap.jp\/nozomu.hashimoto\/published_papers\/50160080\" target=\"_blank\" rel=\"noopener\">Nozomu Hashimoto<\/a>, Yu Ito, Nobuto Nakamichi, <a href=\"https:\/\/researchmap.jp\/yusuke_konno\/published_papers\/46142326\" target=\"_blank\" rel=\"noopener\">Yusuke Konno<\/a>, and <a href=\"https:\/\/researchmap.jp\/read0166560\" target=\"_blank\" rel=\"noopener\">Osamu Fujita<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.fuel.2025.135600\" target=\"_blank\" rel=\"noopener\">Fuel, Vol. 399, No. 135600<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa021\" class=\"wp-block-post post-170 content_post type-content_post status-publish hentry tag-carbonization tag-chlorination tag-phosphorus-chloride tag-phosphorus-recovery tag-sewage-sludge content_type-articles content_issue-vol0001-2025 content_field-center-for-advanced-research-of-energy-and-materials content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Recovery of phosphate from carbonized sewage sludge by chlorination<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>The present research group has recently found a method to recover phosphorus, which is called \u201cbiological and technical nutrient\u201d, from sewage sludge as phosphorus chloride forms. Specifically, we have developed a simple sewage sludge recycling technology that first carbonizes sewage sludge to improve handling, then chlorinates the resulting carbonized material at 500\u2103, and finally separates phosphorus chloride species and impurities by a cooled deposition method. This method can be applied to sewage sludge incineration ash, livestock manure, steelmaking slag, etc.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/mochi0125?lang=en\" target=\"_blank\" rel=\"noopener\">Yuuki Mochizuki<\/a>, and <a href=\"https:\/\/researchmap.jp\/read0075955?lang=en\" target=\"_blank\" rel=\"noopener\">Naoto Tsubouchi<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.biombioe.2025.107890\" target=\"_blank\" rel=\"noopener\">Biomass and Bioenergy\uff0cVolume 199\uff0cArticle 107890<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa022\" class=\"wp-block-post post-172 content_post type-content_post status-publish hentry tag-chlorination-oxidation-techniques tag-selective-separation tag-spent-lithium-ion-battery-cathode-materials tag-valuable-elements content_type-articles content_issue-vol0001-2025 content_field-center-for-advanced-research-of-energy-and-materials content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Selective separation of Li, Ni, Co and Mn from model spent Li ion battery cathode materials by dry processing using the combination of chlorination and oxidation<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>The present group has recently developed a technology to selectively recover valuable metals (Li, Ni, Co and Mn) from used lithium-ion battery cathode materials (LiNiO\u2082, LiCoO\u2082, LiMn\u2082O\u2084, and their composite composition). Specifically, we found that Li, Ni, Co and Mn can be selectively separated from LiNiO\u2082, LiCoO\u2082, and LiMn\u2082O\u2084 by chlorination up to 600\u2103 followed by air oxidation up to 1300\u2103. This research paper was selected as a Key Scientific Article by the selection committee of Advances in Engineering, Canada, and is highly evaluated.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/mochi0125?lang=en\" target=\"_blank\" rel=\"noopener\">Yuuki Mochizuki<\/a>, and <a href=\"https:\/\/researchmap.jp\/read0075955?lang=en\" target=\"_blank\" rel=\"noopener\">Naoto Tsubouchi<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1039\/d4re00328d\" target=\"_blank\" rel=\"noopener\">Reaction Chemistry &amp; Engineering\uff0cVolume 10\uff0cpp. 332-343<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa023\" class=\"wp-block-post post-181 content_post type-content_post status-publish hentry tag-activated-carbon tag-biomass tag-co2-adsorption tag-coal tag-micropore tag-specific-surface-area content_type-articles content_issue-vol0001-2025 content_field-center-for-advanced-research-of-energy-and-materials content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Pore properties and CO\u2082 adsorption performance of activated carbon prepared from various carbonaceous materials<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>The production of activated carbon using biomass and coal as carbon sources, melamine as a nitrogen source, and K\u2082CO\u2083 as a chemical activator revealed that the lower carbon content and lower ash content of the carbon source resulted in better pore development, and that the surface area and micropore volume of activated carbon affected the CO\u2082 adsorption capacity. It was also shown that the optimal micropore size for CO\u2082 adsorption is 0.5 to 1.2 nm. These results are expected to lead to the establishment of production guidelines for activated carbon with high CO\u2082 adsorption capacity.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/mochi0125?lang=en\" target=\"_blank\" rel=\"noopener\">Yuuki Mochizuki<\/a>, Javzandolgor Bud, Enkhsaruul Byambajav, and <a href=\"https:\/\/researchmap.jp\/read0075955?lang=en\" target=\"_blank\" rel=\"noopener\">Naoto Tsubouchi<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.crcon.2024.100237\" target=\"_blank\" rel=\"noopener\">Carbon Resources Conversion\uff0cVolume 8\uff0cArticle 100237<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sa024\" class=\"wp-block-post post-187 content_post type-content_post status-publish hentry tag-acoustic-waveguides tag-interdigital-transducers tag-lamb-waves tag-phononic-crystal tag-surface-acoustic-waves tag-topological-phases content_type-articles content_issue-vol0001-2025 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Imaging valley-vortex edge modes in a phononic crystal at ultrahigh frequencies<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>We perform optical measurements and numerical simulations of guided phonon propagation in novel topological phononic crystal structures at ultrahigh frequencies. The structures support valley-polarized states that exhibit an energy vortex nature and propagate with high efficiency at domain boundaries because backscattering is suppressed due to conservation of time reversal symmetry. We extract frequency- and time-resolved spatial mode patterns and -space images, together with dispersion relations. We investigate the conditions required for robust propagation along interfaces and thereby observe very high efficiency waveguiding.<\/p>\n\n\n\n<p><\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Paul H. Otsuka, Motonobu Tomoda, Daiki Hatanaka, Hiroshi Yamaguchi, Kenji Tsuruta, and <a href=\"https:\/\/researchmap.jp\/omatsuda\" target=\"_blank\" rel=\"noopener\">Osamu Matsuda<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/pubs.aip.org\/aip\/jap\/article\/137\/23\/235104\/3350073\/Imaging-valley-vortex-edge-modes-in-a-phononic\" target=\"_blank\" rel=\"noopener\">Journal of Applied Physics 137, 235104<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa013\" class=\"wp-block-post post-481 content_post type-content_post status-publish hentry tag-environmental-engineering tag-wastewater-treatment content_type-articles content_issue-vol0002-2026 content_field-environmental-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Characterizing the Settlement of Activated Sludge Based on AI-Assisted Analysis of Moving and Still Images<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>In the final process of wastewater treatment, the settleability of activated sludge, a mass of microorganisms responsible for the adsorption and decomposition of pollutants, is important. In order to contribute to the improvement of the efficiency of wastewater treatment plants in rural areas and developing countries, which have problems in terms of economical human resources, this study proposed a low-cost settleability diagnosis method that uses AI-based technology to analyze still images of activated sludge using inexpensive digital microscopes and moving images of activated sludge settling using smartphone camera functions.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/yukinakaya\" target=\"_blank\" rel=\"noopener\">Yuki Nakaya<\/a>, Kai Sugino, Shota Ishizaki, Reiko Hirano, Shuhei Noda, Shinobu Moniwa, Yukio Hiraoka, and Hisashi Satoh<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1021\/acsestwater.5c00539\" target=\"_blank\" rel=\"noopener\">ACS EST Water, 5(8), 4887\u20134896<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa012\" class=\"wp-block-post post-480 content_post type-content_post status-publish hentry tag-hydrogen-isotope tag-isotope-separation tag-polymer-electrolyte-fuel-cell content_type-articles content_issue-vol0002-2026 content_field-313 content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Protium enrichment by polymer electrolyte fuel cell with hydrogen gas circulation<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>A polymer electrolyte fuel cell (PEFC) equipped with a gas recirculation system was employed for deuterium separation. Incorporating a hydrogen gas tank into the gas recirculation line achieved significant hydrogen concentration. During fuel cell operation, hydrogen concentration in the gas increased, yielding a high separation factor. This improvement in separation efficiency is thought to result from enhanced separation efficiency via gas-phase chemical exchange reactions.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Toranosuke Nago, <a href=\"https:\/\/researchmap.jp\/GTI917\/published_papers\" target=\"_blank\" rel=\"noopener\">Mikito Ueda<\/a>, and <a href=\"https:\/\/researchmap.jp\/yoshi--\/published_papers\" target=\"_blank\" rel=\"noopener\">Hisayoshi Matsushima<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0920379625005952\" target=\"_blank\" rel=\"noopener\">Fusion Engineering and Design, 221, 115399(2025)<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa011\" class=\"wp-block-post post-479 content_post type-content_post status-publish hentry tag-civil-engineering tag-computational-mechanics tag-nondestructive-evaluation content_type-articles content_issue-vol0002-2026 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">SH wave scattering in Eringen\u2019s nonlocal elastic solid using the method of fundamental solutions<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Eringen\u2019s nonlocal elastic solid is a mechanical model that enables the analysis of phenomena difficult to describe using classical elasticity. This study analyzed wave scattering in nonlocal elastic solids using the method of fundamental solutions, a meshfree numerical method. An analytical representation of the traction operator specific to nonlocal elasticity was derived, and scattering characteristics relevant to ultrasonic nondestructive testing were evaluated.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/7000018146\/\" target=\"_blank\" rel=\"noopener\">Akira Furukawa<\/a>, Taizo Maruyama, Takahiro Saitoh, Sohichi Hirose, Davinder Kumar, Dilbag Singh, and Sushil K. Tomar<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S095579972500298X?via%3Dihub\" target=\"_blank\" rel=\"noopener\">Engineering Analysis with Boundary Elements, 179, 106410<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa010\" class=\"wp-block-post post-478 content_post type-content_post status-publish hentry tag-glow-discharge tag-plasma-science tag-self-organized-pattern content_type-articles content_issue-vol0002-2026 content_field-264 content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Self-organized luminous pattern formation observed above the anode surface of a DC glow discharge in pure He<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>To elucidate the mechanism of self-organization phenomena in luminescence observed on the anode surface during atmospheric pressure direct current glow discharge generation, we investigated luminescence patterns while varying pressure in a pure He environment. The results revealed that luminescence patterns appear when the product of pressure p and electrode distance d (pd) is high. Moving forward, we will connect this to reaction-diffusion systems, a method used in mathematics to obtain self-organization phenomena.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Toshiaki Miyazaki, Jan Kuhfeld, Koichi Sasaki, and <a href=\"https:\/\/researchmap.jp\/nshirai\" target=\"_blank\" rel=\"noopener\">Naoki Shirai<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6595\/ae33ec\/meta\" target=\"_blank\" rel=\"noopener\">2026 Plasma Sources Sci. Technol. 35 015012<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa009\" class=\"wp-block-post post-477 content_post type-content_post status-publish hentry tag-mathematics tag-reliablity-engineering tag-transportation content_type-articles content_issue-vol0002-2026 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Reliable pathfinding problems for a correlated network: A linear programming problem in a hypergraph<\/h3>\n      <div class=\"wp-block-post-content\">\n              <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/www.researchgate.net\/profile\/Kenetsu-Uchida\" target=\"_blank\" rel=\"noopener\">Kenetsu Uchida<\/a>, Yifan Wang, and <a href=\"https:\/\/www.researchgate.net\/profile\/Ryuichi-Tani\" target=\"_blank\" rel=\"noopener\">Ryuichi Tani<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0377221725003455?via%3Dihub\" target=\"_blank\" rel=\"noopener\">European Journal of Operational Research Volume 326, Issue 2, 16 October 2025, Pages 234-254<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa008\" class=\"wp-block-post post-476 content_post type-content_post status-publish hentry tag-attosecond-science tag-euv-spectroscopy content_type-articles content_issue-vol0002-2026 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Broadband Phase Retardation with Palladium Coated Mirrors for M-edge XMCD in the 40\u201370 eV Range<\/h3>\n      <div class=\"wp-block-post-content\">\n              <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Furkan Aksay, and <a href=\"https:\/\/researchmap.jp\/researchmap-sekikawa\" target=\"_blank\" rel=\"noopener\">Taro Sekikawa<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/opg.optica.org\/ao\/abstract.cfm?uri=ao-64-30-9089\" target=\"_blank\" rel=\"noopener\">Applied Optics 30, 9089-9093 (2025)<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa007\" class=\"wp-block-post post-475 content_post type-content_post status-publish hentry tag-chemical-physics tag-ultrafast-science content_type-articles content_issue-vol0002-2026 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Substituent Effects on Electrocyclic Reactions: Ultrafast Ring-Opening of \u03b1-Phellandrene Stimulated by Impulsively Excited Molecular Vibrations<\/h3>\n      <div class=\"wp-block-post-content\">\n              <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Zhiyi Zhou, Kenichiro Saita, Yusuke Minegishi, Tetsuya Taketsugu, and <a href=\"https:\/\/researchmap.jp\/researchmap-sekikawa\" target=\"_blank\" rel=\"noopener\">Taro Sekikawa<\/a>*<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.jpca.5c03354\" target=\"_blank\" rel=\"noopener\">Journal of Physical Chemistry A 129, 8733-8743 (2025)<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa006\" class=\"wp-block-post post-474 content_post type-content_post status-publish hentry tag-concrete-engineering tag-structural-engineering content_type-articles content_issue-vol0002-2026 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Mesoscale modeling of anisotropic compressive behavior and pull-out performance of 3D printed concrete with steel bars using 3D RBSM<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>This study uses a 3D Rigid Body Spring Model (RBSM) to analyze the anisotropic behavior of 3D-printed concrete (3DPC) with steel reinforcement. Validated by experiments, the research highlights how the mesoscale structure\u2014specifically porous interlayer interfaces\u2014affects performance. Results indicate that specimens loaded parallel to the printing direction exhibit superior compressive strength and bond performance. Conversely, loading perpendicular to the layers leads to stress concentrations and weaker bonds due to interfacial zones. Overall, this research provides a predictive framework for optimizing the structural integrity of 3DPC through mesoscale modeling.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Jiaxu Yao, Jie Luo, Minghong Qiu, and <a href=\"https:\/\/researchmap.jp\/KoheiNagai?lang=en\" target=\"_blank\" rel=\"noopener\">Kohei Nagai<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.conbuildmat.2025.142214\" target=\"_blank\" rel=\"noopener\">Construction and Building Materials, Vol.489, 142214<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa005\" class=\"wp-block-post post-473 content_post type-content_post status-publish hentry tag-low-temperature-physics tag-superfluid tag-time-crystals content_type-articles content_issue-vol0002-2026 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Superfluid dripping: a new analog for continuous time crystals<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>The dripping behavior of superfluid helium-4 has been found to be consistently discretized, even when flow rates vary. This unexpected phenomenon suggests that the superfluid dripping system exhibits time crystallinity by spontaneously breaking continuous time translation symmetry. The condition for the emergence of this continuous time crystal is that the edges of the pendant droplets, which hang from the underside of the cup, can move freely\u2014a characteristic specific to superfluid dripping. This free motion leads to volume-independent oscillation periods for the droplets, effectively eliminating the influence of fluctuations in the flow rates.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Shota Takamatsu, Ryota Yamane, <a href=\"https:\/\/researchmap.jp\/tomoyuki-tani\" target=\"_blank\" rel=\"noopener\">Tomoyuki Tani<\/a>, Yuri Ishimoto, Keito Miyake, Yuki Aoki, and <a href=\"https:\/\/researchmap.jp\/read0069322\" target=\"_blank\" rel=\"noopener\">Ryuji Nomura<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/iopscience.iop.org\/article\/10.1088\/1367-2630\/ae2988\" target=\"_blank\" rel=\"noopener\">New Journal of Physics, 27, 123503-1-8<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa004\" class=\"wp-block-post post-472 content_post type-content_post status-publish hentry tag-construction-materials tag-structural-concrete tag-structural-engineering content_type-articles content_issue-vol0002-2026 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Effects of Combined Deterioration of Steel Corrosion and Freeze-thaw Cycles on the Pull-out Behavior of Deformed Bars in Concrete<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>This study is the first to systematically investigate how loading sequence and cracking history affect the bond performance of deformed bars under the combined deterioration caused by steel corrosion and freeze\u2013thaw action, a serious problem in concrete structures in cold regions. Through controlled experiments simulating realistic deterioration paths, the study clarified the influence of damage sequence on structural performance. In particular, it demonstrated that pre-existing cracks significantly accelerate deterioration by promoting moisture ingress and freeze\u2013thaw damage. These findings highlight that considering damage history is essential for reliable durability assessment and long-term maintenance planning of aging reinforced concrete infrastructure.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/scholar.google.com\/citations?user=t0AXMRIAAAAJ&amp;hl=en\" target=\"_blank\" rel=\"noopener\">Muhmudul Hasan Mizan<\/a>, Ryuhei Hayakawa, and <a href=\"https:\/\/www.researchgate.net\/profile\/Koji-Matsumoto-5\" target=\"_blank\" rel=\"noopener\">Koji Matsumoto<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0950061825049104\" target=\"_blank\" rel=\"noopener\">Construction and Building Materials, 505<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa003\" class=\"wp-block-post post-471 content_post type-content_post status-publish hentry tag-civil-engineering content_type-articles content_issue-vol0002-2026 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">A multi-module deep learning framework with graph-based network and crack attention for tunnel lining crack segmentation from LiDAR point cloud<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Cracks in railway tunnels threaten safety and require efficient monitoring. This study introduces PointCrackNet, a deep learning method that detects tunnel lining cracks directly from LiDAR point clouds. By combining graph-based convolution, attention mechanisms, and a crack-enhancement module, the model accurately captures fine crack details while maintaining global structural context. A tailored loss function addresses class imbalance and improves crack continuity. Tested on a large-scale LiDAR dataset from a real railway tunnel, PointCrackNet outperformed existing methods. The approach enables automated tunnel inspection and supports smart, data-driven infrastructure maintenance.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Shanpeng Liu, <a href=\"https:\/\/researchmap.jp\/kiso\" target=\"_blank\" rel=\"noopener\">Koichi Isobe<\/a>, <a href=\"https:\/\/www.researchgate.net\/profile\/Junling-Si\" target=\"_blank\" rel=\"noopener\">Junling Si<\/a>, Diyuan Li, and <a href=\"https:\/\/www.researchgate.net\/profile\/Daoju-Ren\" target=\"_blank\" rel=\"noopener\">Daoju Ren<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/doi.org\/10.1016\/j.conbuildmat.2025.143383\" target=\"_blank\" rel=\"noopener\">Construction and Building Materials Volume 494, 2025, 143383<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa002\" class=\"wp-block-post post-470 content_post type-content_post status-publish hentry tag-acoustic-wave-analysis tag-ai tag-concrete-engineering content_type-articles content_issue-vol0002-2026 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Application of unsupervised AI-assisted acoustic wave sound analysis for non-destructive detection of steel corrosion induced deterioration<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Reinforced concrete structures require reliable monitoring to ensure safety and efficient maintenance. Non-destructive testing methods such as tapping sound inspection are widely applied. However, the diagnosis results often depend on technical expert skill and experience. This study proposes an easy-to-use, AI-based evaluation method for tapping sounds using unsupervised deep learning. Laboratory tests were carried out on reinforced concrete beams with simulated steel bar corrosion. The method proposes an anomaly index that reflects corrosion progress and surface cracking. The results demonstrate that acoustic inspection with AI can support early damage detection and improve condition assessment of concrete structures.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Nopphanan Phannakham, <a href=\"https:\/\/researchmap.jp\/ktfmhsmt?lang=en\" target=\"_blank\" rel=\"noopener\">Katsufumi Hashimoto<\/a>, Yasuhiko Sato, and Naoshi Ueda<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S2214509525015001\" target=\"_blank\" rel=\"noopener\">Case Studies in Construction Materials, 24, e05702<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sa001\" class=\"wp-block-post post-469 content_post type-content_post status-publish hentry tag-concrete tag-mems tag-vibrational-energy-harvesting content_type-articles content_issue-vol0002-2026 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Design of micro-electro-mechanical systems-driven environmental sensor for steel corrosion detection in concrete using sacrificial anode metal sheets<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>This study develops a MEMS (Micro-Electro-Mechanical Systems)-based monitoring system incorporating MEH (Micro-Energy Harvester) technology to identify chloride-induced corrosion-prone areas in RC structures. The proposed system integrates sacrificial anode metal sheets (SAMS) into MEMS\u2013MEH devices, enabling simultaneous corrosion detection and energy harvesting. In tracking corrosion progress through frequency shifts while generating power, the system operates without batteries or external power. The results help define target operating frequencies for reliable MEMS\u2013MEH performance in predicting corrosion conditions in RC structures.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Nicharin Nithimethaporn, <a href=\"https:\/\/researchmap.jp\/ktfmhsmt?lang=en\" target=\"_blank\" rel=\"noopener\">Katsufumi Hashimoto<\/a>, Hiroyuki Mitsuya, Hisayuki Ashizawa, Takuma Ishiguro, and Wanchai Yodsudjai<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/journals.sagepub.com\/doi\/10.1177\/14759217251358927\" target=\"_blank\" rel=\"noopener\">Structural Health Monitoring, 24(5) 2731-2746<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n<\/ul>\n<\/div>\n<!-- BLOCK: CONTENT_ARTICLE-PICKUP -->\n\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/articles\/\">More Articles<\/a><\/div>\n<\/div>\n<\/section>\n\n\n\n<section id=\"projects\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Selected Projects<\/h2>\n\n\n<div class=\"wp-block-query\">\n<ul class=\"query_content wp-block-post-template is-layout-flow wp-block-post-template-is-layout-flow\">\n  <li id=\"a202510sp001\" class=\"wp-block-post post-169 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">One-Pass Synthesis of BTX from CO\u2082 Enabled by Precisely Controlled Catalysts<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>CO\u2082 utilization is essential for achieving carbon neutrality, and among potential target products, BTX (benzene, toluene, and xylene) are key basic chemicals in a post-fossil society. In this study, we build on previous collaborative research between the University of Tokyo, Hokkaido University, and Idemitsu Kosan Co., Ltd. We aim to precisely control the catalyst structure at the atomic level, enabling one-pass synthesis of BTX from CO\u2082. Through this approach, we seek to establish a catalyst process that is robust and scalable, suitable for industrial application, and capable of supporting a sustainable future without reliance on fossil resources.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/tadashohei\" target=\"_blank\" rel=\"noopener\">Shohei Tada<\/a>, <a href=\"https:\/\/researchmap.jp\/ktakeyasu\" target=\"_blank\" rel=\"noopener\">Kotaro Takeyasu<\/a>, <a href=\"https:\/\/researchmap.jp\/ryota_osuga\" target=\"_blank\" rel=\"noopener\">Ryota Osuga<\/a>, <a href=\"https:\/\/researchmap.jp\/iyokikenta\" target=\"_blank\" rel=\"noopener\">Kenta Iyoki<\/a>, <a href=\"https:\/\/researchmap.jp\/kanematsu_yuichiro\" target=\"_blank\" rel=\"noopener\">Yuichiro Kanematsu<\/a>, and Idemitsu Kosan Co., Ltd.<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.nedo.go.jp\/activities\/ZZJP_100100.html\" target=\"_blank\" rel=\"noopener\">NEDO Feasibility Study Program<\/a>\u00a0(2025~)<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp002\" class=\"wp-block-post post-174 content_post type-content_post status-publish hentry tag-helium content_type-projects content_issue-vol0001-2025 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Novel continuous-time crystallinity observed in a superfluid dripping system<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>While the dripping period of a classical viscous fluid is widely distributed due to the influence of chaos, the dripping period of a superfluid 4He liquid is discretized to a constant value specified by integers even if the inflow rate changes. We clarify that this robust discretization is the realization of a continuous-time crystal from the viewpoints of inflow rate phase diagram, temperature phase diagram, wall shape and dimensionality, and time-domain phonon excitation.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/read0069322\" target=\"_blank\" rel=\"noopener\">Ryuji Nomura<\/a>, <a href=\"https:\/\/researchmap.jp\/tomoyuki-tani\/?lang=japanese\" target=\"_blank\" rel=\"noopener\">Tomoyuki Tani<\/a>, and Yuki Aoki<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/ja\/grant\/KAKENHI-PROJECT-25K00954\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Scientific Research(B)<\/a> 2025.4.1\uff5e2028.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp003\" class=\"wp-block-post post-177 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-mechanical-and-aerospace-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Development of a 3D-printable head protection material with superior impact absorption and durability using biomimetic porous structures<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>We are developing a novel 3D-printable head protection material using a biomimetic structure inspired by cancellous bone architecture. This offers excellent multi-impact absorption capabilities. Its high three-dimensional isotropy enables it to absorb impacts from any direction. The porous design can be freely tailored to meet specific shape and performance requirements. In addition to head protection, the material shows strong potential for applications in body protection gear and cushioning materials for transporting precision equipment.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/s_yamada\" target=\"_blank\" rel=\"noopener\">Satoshi Yamada<\/a>, Yuelin Zhang, and Keita Kawashima<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/projectdb.jst.go.jp\/grant\/JST-PROJECT-24032465\/\" target=\"_blank\" rel=\"noopener\">Adaptable and Seamless Technology transfer Program through Target-driven R&amp;D (A-STEP)<\/a> 2024.12.1\uff5e2027.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp004\" class=\"wp-block-post post-180 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-mechanical-and-aerospace-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Mechanisms underlying the dynamic strength of cancellous bone based on the impact strength of individual trabeculae and microarchitecture<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Osteoporotic fractures occur in cancellous bone due to even minor impacts. In addition to bone mass, the impact strength of individual trabeculae and the microarchitecture are hypothesized to determine the dynamic strength of cancellous bone. This study aims to experimentally clarify these mechanisms and apply the findings to further improve the control of dynamic fracture risk.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/s_yamada\" target=\"_blank\" rel=\"noopener\">Satoshi Yamada<\/a>, Tomohiro Shimizu and Kazuhiro Fujisaki<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/ja\/grant\/KAKENHI-PROJECT-25K01114\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Scientific Research(B)<\/a> 2025.4.1\uff5e2028.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp005\" class=\"wp-block-post post-183 content_post type-content_post status-publish hentry tag-helium tag-plasticity tag-quantum-solid tag-supersolid tag-very-low-temperature content_type-projects content_issue-vol0001-2025 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Study of Quantum Plasticity and Supersolidity of solid 4He by Observing Motion of Sinking Object<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Solid helium is often referred to as quantum solid and known to deform easily and rapidly even under tiny force, strongly subjected to quantum effect. A number of research have been conducted to study its elasticity, or reversible deformation, but its plasticity, or irreversible deformation, is scarcely understood. In the proposed experiment, we are going to precisely measure the motion of objects sinking in solid helium to elucidate the quantum effects on the plasticity of solid helium. Especially, the local superflow expected to exist in cores of dislocations and grain boundaries are to be examined, in the context of supersolidity.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/tomoyuki-tani\/?lang=japanese\" target=\"_blank\" rel=\"noopener\">Tomoyuki Tani<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/grant\/KAKENHI-PROJECT-25K17334\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Early-Career Scientists<\/a> 2025.4.1\uff5e2028.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp006\" class=\"wp-block-post post-185 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-264 content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Development of dimension reduction scheme for data assimilation using criticality experiments<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>The nuclear cross section uncertainty given as a covariance matrix will be used to evaluate the realistic range of important parameters in the safety analysis of nuclear reactors. In recent discussions, the application of data assimilation is considered important to incorporate criticality experiment findings. However, there is a practical issue to treat the covariance matrix after applying data assimilation because the covariance matrix becomes much denser one by causing complex correlated components and the computational cost becomes increased. This research project develops a dimension reduction scheme to solve this practical issue.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Principal investigator: <a href=\"https:\/\/researchmap.jp\/tatsuya.fujita\/\" target=\"_blank\" rel=\"noopener\">Tatsuya Fujita<\/a>, and Collaborator: <a href=\"https:\/\/researchmap.jp\/go_chiba\" target=\"_blank\" rel=\"noopener\">Go Chiba<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/ja\/grant\/KAKENHI-PROJECT-25K08533\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Scientific Research(C)<\/a> 2025.4.1\uff5e2029.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp007\" class=\"wp-block-post post-189 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Development of radiation technology to clarify the microstructure of concrete, which is becoming more diverse in a decarbonized society<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Concrete, the main construction material, is the second most widely used substance after water. As concrete has a large environmental impact on a global scale, we are conducting research at the ultrafine level of its internal structure of concrete using advanced radiation technology to develop a new type of concrete that reduces the emissions of carbon dioxide and other gases that accompany its manufacture, without compromising its strength or durability. In this way, we can achieve a decarbonized society.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/scholar.google.com\/citations?user=Yecj5uoAAAAJ&amp;hl=ja&amp;oi=ao\" target=\"_blank\" rel=\"noopener\">Takafumi Sugiyama<\/a>, Katsufumi Hashimoto, and Michael Angelo B. Promentilla,<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/ja\/grant\/KAKENHI-PROJECT-25K01301\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Scientific Research(B)<\/a> 2025.4.1\uff5e2028.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp008\" class=\"wp-block-post post-192 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Material Behavior and Mechanical Performance Based on Hierarchical Structure Formation of 3D-Printed Concrete<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>This study investigates the hierarchical structure of 3D-printed concrete (3DP concrete) by analyzing two key aspects: the microscopic heterogeneity caused by material segregation within the filament during deposition, and the macroscopic non-uniformity resulting from interfacial voids formed along the printing path. By clarifying these higher-order structures, we demonstrate that 3DP concrete possesses multiscale material properties and mechanical behavior, making it a hierarchical material. Furthermore, we establish a systematic academic framework for understanding how heterogeneity (material geometry) and non-uniformity (structural geometry) are embedded as geometric parameters in 3D spatial information, providing insights into the mechanical performance and failure modes of 3DP concrete.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/ktfmhsmt\" target=\"_blank\" rel=\"noopener\">Katsufumi Hashimoto<\/a>, Takafumi Sugiyama, and Shimpei Ono<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/ja\/grant\/KAKENHI-PROJECT-25K01300\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Scientific Research(B)<\/a> 2025.4.1\uff5e2028.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp009\" class=\"wp-block-post post-194 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-civil-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Research and Development of Anomaly Detection Technology for Civil Infrastructures Using Electret Vibrational Energy Harvesting Device and Wireless Power\/Data Transfer<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>We will develop a battery-less anomaly detection device capable of sensing the condition and environment of infrastructure structures, and establish a wireless energy and data communication platform. In particular, a system will be realized that allows monitoring via an IoT network using microwave spatial transmission (WPDT) technology of information related to structural deterioration, damage, environmental conditions, and faults autonomously detected by electret MEMS sensors powered by environmental vibration energy harvesting. This will enable the social implementation of a seamless monitoring platform targeting infrastructure structures and their auxiliary facilities, capable of phase-free response at all times, including both normal and emergency conditions.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/ktfmhsmt\" target=\"_blank\" rel=\"noopener\">Katsufumi Hashimoto<\/a> (PI), Hiroyuki Mitsuya, and Teruo Fujiwara<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.nedo.go.jp\/activities\/ZZJP_100100.html#kako\" target=\"_blank\" rel=\"noopener\">NEDO Feasibility Study Program<\/a><\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp010\" class=\"wp-block-post post-196 content_post type-content_post status-publish hentry tag-co2-absorption tag-recycling tag-waste-concrete tag-wet-dry-cycle content_type-projects content_issue-vol0001-2025 content_field-architecture content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">A study on the application of accelerated carbonation cement paste powder by wet-dry cycle technique to supplementary cementitious material<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Carbonated recycled concrete paste can serve as a supplementary cementitious material (SCM) with pozzolanic properties from alumina-silica gel. Additionally, since it contains fine particles of calcium carbonate, it is expected to enhance concrete performance through its filling effect when used as SCM. Previous studies have shown that the wet-dry cycle method promotes CO\u2082 absorption and increases the porosity of concrete paste. Based on this, the study aims to efficiently absorb CO\u2082 using waste concrete paste through the wet-dry cycle method and seeks to recycle resources and enhance concrete performance by reusing the carbonation products as SCM.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Dayoung OH (<a href=\"https:\/\/researchmap.jp\/dayoung_oh\" target=\"_blank\" rel=\"noopener\">researchmap.jp<\/a>, <a href=\"https:\/\/www.researchgate.net\/profile\/Dayoung-Oh-3?ev=hdr_xprf\" target=\"_blank\" rel=\"noopener\">researchgate.net<\/a>, <a href=\"https:\/\/scholar.google.com\/citations?hl=en&amp;user=raQfqqIAAAAJ\" target=\"_blank\" rel=\"noopener\">scholar.google.com<\/a>), and <a href=\"https:\/\/www.researchgate.net\/profile\/Ryoma-Kitagaki\" target=\"_blank\" rel=\"noopener\">Ryoma KITAGAKI<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.taisei-foundation.or.jp\/results\/index.html#ap_2025\" target=\"_blank\" rel=\"noopener\">The Taisei Foundation<\/a> 2025.4~2026.3<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp011\" class=\"wp-block-post post-198 content_post type-content_post status-publish hentry tag-gis content_type-projects content_issue-vol0001-2025 content_field-architecture content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Construction of an Energy Forecasting GIS and Development of Design Methods for Power Sharing Networks Utilizing Existing Buildings<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Moving forward, Japan&#8217;s decarbonization must be driven by efforts that capitalize on the distinct characteristics of each region. Our research aims to develop a tool for predicting energy consumption in large building groups and evaluating the availability of renewable energy. In parallel, by proposing an optimized design methodology for power interchange networks that facilitates efficient electricity use, we will make it easier to formulate the best decarbonization plans tailored to specific regions.<\/p>\n\n\n\n<p><\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/h-osawa\/research_projects\/50428221\" target=\"_blank\" rel=\"noopener\">Hisato Osawa<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/kaken.nii.ac.jp\/ja\/grant\/KAKENHI-PROJECT-25K21423\/\" target=\"_blank\" rel=\"noopener\">Grant-in-Aid for Early-Career Scientists<\/a> 2025.4.1\uff5e2028.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp012\" class=\"wp-block-post post-200 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">High-harmonic generation of by topological magnon edge states<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Theoretical and experimental research on high harmonic generation originating from topological edge states of magnons is conducted.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Hideaki Obuse (<a href=\"https:\/\/researchmap.jp\/hideaki.obuse\" target=\"_blank\" rel=\"noopener\">researchmap.jp<\/a>, <a href=\"https:\/\/scholar.google.de\/citations?user=43H2_JwAAAAJ&amp;hl=en\" target=\"_blank\" rel=\"noopener\">scholar.google.de<\/a>), and Hirori Hideki<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.icr-ijurc.jp\/theme\/\" target=\"_blank\" rel=\"noopener\">Institute for Chemical Research (ICR), Kyoto University Global Frontier and Interdisciplinary Research Core for Deepening Investigations and Promoting Collaboration in Chemistry-oriented Fields<\/a> 2025.4.1\uff5e2026.3.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202510sp0013\" class=\"wp-block-post post-202 content_post type-content_post status-publish hentry content_type-projects content_issue-vol0001-2025 content_field-applied-physics content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Collaboration on bulk-edge correspondence in gapless topological > phases<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>To significantly progress our joint research, we will invite a researcher from the Indian Institute of Technology Bombay to engage in 11 days of in-person discussion focused on bulk-edge correspondence and in gapless topological phase and effects of disorders. We also plan to discuss future application plans aimed at continuing collaborative research.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p>Hideaki Obuse (<a href=\"https:\/\/researchmap.jp\/hideaki.obuse\" target=\"_blank\" rel=\"noopener\">researchmap.jp<\/a>, <a href=\"https:\/\/scholar.google.de\/citations?user=43H2_JwAAAAJ&amp;hl=en\" target=\"_blank\" rel=\"noopener\">scholar.google.de<\/a>), Soumya Bera, Ranjith R. Kumar, and Ishita Modak<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.jst.go.jp\/pr\/info\/info1776\/index.html\" target=\"_blank\" rel=\"noopener\">JST Sakura Science Program (B course)<\/a> 2025.8.21\uff5e2025.8.31<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sp001\" class=\"wp-block-post post-505 content_post type-content_post status-publish hentry tag-blockchain tag-digital-tiwn tag-mining-engineering content_type-projects content_issue-vol0002-2026 content_field-sustainable-resources-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Development of Ethical Mining Technologies to Achieve Responsible Mineral Sourcing: The Future of Mining Development Enabled by Blockchain<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>Assistant Professor Okada of Hokkaido University, with support from the JST Sakura Science Program, will invite eight faculty members and students from Aksum University in Ethiopia. Using blockchain and GIS, they will examine new technological frameworks for ensuring transparency in responsible mineral sourcing and for environmentally conscious resource development through joint research, practical exercises, and presentations of results.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/okada_n\" target=\"_blank\" rel=\"noopener\">Natsuo Okada<\/a><\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.jst.go.jp\/pr\/info\/info1790\/pdf\/info1790.pdf\" target=\"_blank\" rel=\"noopener\">Sakura Science Exchange Program<\/a> 2026.2.4~2026.2.18<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sp002\" class=\"wp-block-post post-506 content_post type-content_post status-publish hentry tag-analytical-chemistry tag-environmental-engineering tag-environmental-science content_type-projects content_issue-vol0002-2026 content_field-environmental-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Evaluation of Phosphorus Release from Lake Sediments Using Passive Sampling and Phosphate Oxygen Isotope Analysis<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>In eutrophic lakes, the persistent high phosphorus concentration in lake water poses a significant problem. This study employs passive sampling techniques and phosphorus oxygen isotope analysis to identify the sources supplying phosphorus to the lake water. This approach will also reveal contributions from lake sediments, which have not been evaluated previously. This research is expected to contribute to the assessment and conservation of lake water environments.<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/ahafuka\" target=\"_blank\" rel=\"noopener\">Akira Hafuka<\/a>, Takuya Ishida, and Kazuto Sano<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.sumitomo.or.jp\/pdf\/soumu\/press\/press_kk20251017.pdf\" target=\"_blank\" rel=\"noopener\">The Sumitomo Foundation, Grant for Environmental Research Projects<\/a> 2025.11.01\uff5e2026.11.30<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n  <li id=\"a202604sp003\" class=\"wp-block-post post-507 content_post type-content_post status-publish hentry tag-environmental-engineering tag-green-technology tag-renewable-energy content_type-projects content_issue-vol0002-2026 content_field-environmental-engineering content_year-347\">\n    <div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n      <h3 class=\"wp-block-post-title\">Green Conversion of Palm Oil Wastes into Bio-Compressed Natural Gas (Bio-CNG) for Renewable Energy Diversification in Malaysia<\/h3>\n      <div class=\"wp-block-post-content\">\n        \n<p>This collaborative research aims to enhance the production and upgrading of bio-compressed natural gas (Bio-CNG) by effectively utilizing two major byproducts generated from Malaysia\u2019s palm oil industry: palm oil mill effluent (POME) and empty fruit bunches (EFB). Specifically, the Japanese team will develop and support the operation of anaerobic digestion processes, conduct microbial community analyses, and apply machine-learning-based data-driven modelling to improve process stability and enable rapid and precise optimization of CO2 adsorbent performance. The Malaysian team will optimize pretreatment and fermentation conditions for EFB and lead the development and evaluation of gas separation technologies using EFB-derived biochar. Through collaborative research between the two countries, the project is expected to contribute to establishing a renewable energy technology platform that supports Malaysia\u2019s transition toward a decarbonized energy society<\/p>\n      <\/div>\n      <div class=\"content_data wp-block-group is-style-group-contentinfo\">\n    <p class=\"content_person\"><p><a href=\"https:\/\/researchmap.jp\/maoshiki\" target=\"_blank\" rel=\"noopener\">Mamoru Oshiki<\/a>, and Adeline Seak May CHUA<\/p>\n<\/p>\n\n    <p class=\"content_info\"><p><a href=\"https:\/\/www.jst.go.jp\/aspire\/nexus\/en\/project\/index.html\" target=\"_blank\" rel=\"noopener\">Networked Exchange, United Strength for Stronger Partnerships between Japan and ASEAN (NEXUS)<\/a> 2026.1\u301c2028.12<\/p>\n<\/p>\n<\/div>\n<!-- \/\/ BLOCK: CONTENT-DATA -->\n    <\/div>\n  <\/li>\n<!-- TEMP: CONTENT_POST ARCHIVES -->\n<\/ul>\n<\/div>\n<!-- BLOCK: CONTENT_ARTICLE-PICKUP -->\n\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/projects\/\">More Projects<\/a><\/div>\n<\/div>\n<\/section>\n\n\n\n<section id=\"mostread\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Most Read<\/h2>\n\n\n\n<div class=\"wp-block-query is-layout-flow wp-block-query-is-layout-flow\"><ul class=\"columns-3 query_mostread has_blankimg wp-block-post-template is-layout-grid wp-container-core-post-template-is-layout-6d3fbd8f wp-block-post-template-is-layout-grid\"><li class=\"wp-block-post post-257 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-electron-temperature tag-euv-lithography tag-laser-produced-plasma tag-laser-thomson-scattering tag-plasma-diagnostics content_type-projects content_issue-vol0001-2025 content_field-264 content_year-347\">\n\n<div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover post_thumb has-aspect-ratio\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\" style=\"background-color:#445860\"><\/span><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1368\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/kt_20251001_img01.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\" srcset=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/kt_20251001_img01.jpg 2048w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/kt_20251001_img01-800x534.jpg 800w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/kt_20251001_img01-1600x1069.jpg 1600w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/kt_20251001_img01-768x513.jpg 768w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/kt_20251001_img01-1536x1026.jpg 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\"><a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp002\/\" target=\"_self\">more<span class=\"screen-reader-text\">: Research and Development of Core Technologies for Next-Generation Semiconductor Microfabrication<\/span><\/a><\/div><\/div>\n\n\n<h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp002\/\" target=\"_self\" >Research and Development of Core Technologies for Next-Generation Semiconductor Microfabrication<\/a><\/h3><\/div>\n\n<\/li><li class=\"wp-block-post post-252 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-solid-electrolytes tag-synthesis content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n\n<div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover post_thumb has-aspect-ratio\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\" style=\"background-color:#445860\"><\/span><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1069\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articlest0001-01.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\" srcset=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articlest0001-01.jpg 1600w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articlest0001-01-800x535.jpg 800w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articlest0001-01-768x513.jpg 768w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articlest0001-01-1536x1026.jpg 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\"><a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fa001\/\" target=\"_self\">more<span class=\"screen-reader-text\">: The Detail Matters: Unveiling Overlooked Parameters in the Mechanochemical Synthesis of Solid Electrolytes<\/span><\/a><\/div><\/div>\n\n\n<h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fa001\/\" target=\"_self\" >The Detail Matters: Unveiling Overlooked Parameters in the Mechanochemical Synthesis of Solid Electrolytes<\/a><\/h3><\/div>\n\n<\/li><li class=\"wp-block-post post-255 featured_post type-featured_post status-publish has-post-thumbnail hentry tag-mechanochemistry content_type-articles content_issue-vol0001-2025 content_field-applied-chemistry content_year-347\">\n\n<div class=\"wp-block-group post_block is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"aspect-ratio:4\/3;min-height:unset;\" class=\"wp-block-cover post_thumb has-aspect-ratio\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\" style=\"background-color:#445860\"><\/span><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1069\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articles0002-01.jpg\" class=\"wp-block-cover__image-background wp-post-image\" alt=\"\" data-object-fit=\"cover\" srcset=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articles0002-01.jpg 1600w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articles0002-01-800x535.jpg 800w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articles0002-01-768x513.jpg 768w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/featured-articles0002-01-1536x1026.jpg 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\"><a class=\"wp-block-read-more\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fa002\/\" target=\"_self\">more<span class=\"screen-reader-text\">: Mechanochemical activation of metallic lithium for the generation and application of organolithium compounds in air<\/span><\/a><\/div><\/div>\n\n\n<h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fa002\/\" target=\"_self\" >Mechanochemical activation of metallic lithium for the generation and application of organolithium compounds in air<\/a><\/h3><\/div>\n\n<\/li><\/ul>\n\n<\/div>\n<\/section>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top navigation_area has-theme-lightgray-background-color has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30);flex-basis:25%\">\n<div class=\"wp-block-group banner_list is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-x-large-font-size\">Updated on March 31, 2026<\/p>\n\n\n\n<div style=\"aspect-ratio:1;min-height:unset;\" class=\"wp-block-cover is-style-cover-banner has-theme-white-color has-text-color has-link-color wp-elements-6c2a2a65e727969a87b4397b87fc4494 has-aspect-ratio\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1365\" class=\"wp-block-cover__image-background wp-image-502 size-full\" alt=\"\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/bn_f.jpeg\" data-object-fit=\"cover\" srcset=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/bn_f.jpeg 2048w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/bn_f-800x533.jpeg 800w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/bn_f-1600x1066.jpeg 1600w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/bn_f-768x512.jpeg 768w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2026\/03\/bn_f-1536x1024.jpeg 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-30 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-xx-large-font-size\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/\" data-type=\"page\" data-id=\"21\">All Featured Research<\/a><\/p>\n<\/div><\/div>\n\n\n\n<div style=\"aspect-ratio:1;min-height:unset;\" class=\"wp-block-cover is-style-cover-banner has-theme-white-color has-text-color has-link-color wp-elements-3a808b1a88e2e28bc8d5ded25e5f2fa5 has-aspect-ratio\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" class=\"wp-block-cover__image-background wp-image-363 size-full\" alt=\"\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/all_selected_articles-bnr.jpg\" data-object-fit=\"cover\" srcset=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/all_selected_articles-bnr.jpg 800w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/all_selected_articles-bnr-400x400.jpg 400w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/all_selected_articles-bnr-768x768.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-30 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-xx-large-font-size\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/articles\/\" data-type=\"page\" data-id=\"21\">All Selected Articles<\/a><\/p>\n<\/div><\/div>\n\n\n\n<div style=\"aspect-ratio:1;min-height:unset;\" class=\"wp-block-cover is-style-cover-banner has-theme-white-color has-text-color has-link-color wp-elements-7ae233b0ac9a9c02448357879e6f5fea has-aspect-ratio\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" class=\"wp-block-cover__image-background wp-image-364 size-full\" alt=\"\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/all_selected_projects-bnr.jpg\" data-object-fit=\"cover\" srcset=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/all_selected_projects-bnr.jpg 800w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/all_selected_projects-bnr-400x400.jpg 400w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/10\/all_selected_projects-bnr-768x768.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-30 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-xx-large-font-size\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/projects\/\" data-type=\"page\" data-id=\"23\">All Selected Projects<\/a><\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Keywords<\/h3>\n\n\n<p class=\"wp-block-tag-cloud\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/concrete\/\" class=\"tag-cloud-link tag-link-122 tag-link-position-1\" style=\"font-size: 1em;\" aria-label=\"Concrete (2 items)\">Concrete<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/concrete-engineering\/\" class=\"tag-cloud-link tag-link-358 tag-link-position-2\" style=\"font-size: 1em;\" aria-label=\"Concrete Engineering (3 items)\">Concrete Engineering<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/co2-absorption\/\" class=\"tag-cloud-link tag-link-345 tag-link-position-3\" style=\"font-size: 1em;\" aria-label=\"CO\u2082 absorption (2 items)\">CO\u2082 absorption<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/environmental-engineering\/\" class=\"tag-cloud-link tag-link-384 tag-link-position-4\" style=\"font-size: 1em;\" aria-label=\"Environmental Engineering (3 items)\">Environmental Engineering<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/helium\/\" class=\"tag-cloud-link tag-link-270 tag-link-position-5\" style=\"font-size: 1em;\" aria-label=\"helium (2 items)\">helium<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/hydrogen\/\" class=\"tag-cloud-link tag-link-183 tag-link-position-6\" style=\"font-size: 1em;\" aria-label=\"Hydrogen (2 items)\">Hydrogen<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/mechanochemistry\/\" class=\"tag-cloud-link tag-link-14 tag-link-position-7\" style=\"font-size: 1em;\" aria-label=\"Mechanochemistry (2 items)\">Mechanochemistry<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/superfluid\/\" class=\"tag-cloud-link tag-link-81 tag-link-position-8\" style=\"font-size: 1em;\" aria-label=\"Superfluid (2 items)\">Superfluid<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/waste-concrete\/\" class=\"tag-cloud-link tag-link-167 tag-link-position-9\" style=\"font-size: 1em;\" aria-label=\"waste concrete (2 items)\">waste concrete<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/tag\/wet-dry-cycle\/\" class=\"tag-cloud-link tag-link-171 tag-link-position-10\" style=\"font-size: 1em;\" aria-label=\"wet-dry cycle (2 items)\">wet-dry cycle<\/a><\/p>\n\n\n<p class=\"has-text-align-right\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/keywords\/\" data-type=\"page\" data-id=\"351\">more&#8230;<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Research Field<\/h3>\n\n\n<p class=\"wp-block-tag-cloud\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/applied-chemistry\/\" class=\"tag-cloud-link tag-link-262 tag-link-position-1\" style=\"font-size: 1em;\" aria-label=\"Applied Chemistry (8 items)\">Applied Chemistry<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/applied-physics\/\" class=\"tag-cloud-link tag-link-267 tag-link-position-2\" style=\"font-size: 1em;\" aria-label=\"Applied Physics (11 items)\">Applied Physics<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/%e5%bf%9c%e7%94%a8%e9%87%8f%e5%ad%90%e7%a7%91%e5%ad%a6%e9%83%a8%e9%96%80\/\" class=\"tag-cloud-link tag-link-264 tag-link-position-3\" style=\"font-size: 1em;\" aria-label=\"Applied Quantum Science and Engineering (4 items)\">Applied Quantum Science and Engineering<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/architecture\/\" class=\"tag-cloud-link tag-link-299 tag-link-position-4\" style=\"font-size: 1em;\" aria-label=\"Architecture (3 items)\">Architecture<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/center-for-advanced-research-of-energy-and-materials\/\" class=\"tag-cloud-link tag-link-322 tag-link-position-5\" style=\"font-size: 1em;\" aria-label=\"Center for Advanced Research of Energy and Materials (4 items)\">Center for Advanced Research of Energy and Materials<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/civil-engineering\/\" class=\"tag-cloud-link tag-link-286 tag-link-position-6\" style=\"font-size: 1em;\" aria-label=\"Civil Engineering (14 items)\">Civil Engineering<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/environmental-engineering\/\" class=\"tag-cloud-link tag-link-263 tag-link-position-7\" style=\"font-size: 1em;\" aria-label=\"Environmental Engineering (6 items)\">Environmental Engineering<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/%e6%9d%90%e6%96%99%e7%a7%91%e5%ad%a6%e9%83%a8%e9%96%80\/\" class=\"tag-cloud-link tag-link-313 tag-link-position-8\" style=\"font-size: 1em;\" aria-label=\"Materials Science and Engineering (2 items)\">Materials Science and Engineering<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/mechanical-and-aerospace-engineering\/\" class=\"tag-cloud-link tag-link-273 tag-link-position-9\" style=\"font-size: 1em;\" aria-label=\"Mechanical and Aerospace Engineering (5 items)\">Mechanical and Aerospace Engineering<\/a>\n<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/field\/sustainable-resources-engineering\/\" class=\"tag-cloud-link tag-link-314 tag-link-position-10\" style=\"font-size: 1em;\" aria-label=\"Sustainable Resources Engineering (3 items)\">Sustainable Resources Engineering<\/a><\/p>\n\n\n<h3 class=\"wp-block-heading\">Year<\/h3>\n\n\n<p class=\"wp-block-tag-cloud\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/year\/2025\/\" class=\"tag-cloud-link tag-link-347 tag-link-position-1\" style=\"font-size: 1em;\" aria-label=\"2025 (60 items)\">2025<\/a><\/p>\n\n\n<aside class=\"wp-block-group banner_list is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"aspect-ratio:1;min-height:unset;\" class=\"wp-block-cover is-light pr is-style-cover-banner has-theme-white-color has-text-color has-link-color wp-elements-e002cad607190f082f9f2c41e8629d68 has-aspect-ratio\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"700\" class=\"wp-block-cover__image-background wp-image-92 size-full\" alt=\"\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/engineering-banner.png\" data-object-fit=\"cover\" srcset=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/engineering-banner.png 700w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/09\/engineering-banner-400x400.png 400w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-30 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-large-font-size\"><a href=\"https:\/\/www.eng.hokudai.ac.jp\/english\/brochure\/engineering.php\" target=\"_blank\" rel=\"noreferrer noopener\">Magazine<br>\u2018EngineeRing\u2019<br>(in Japanese)<\/a><\/p>\n<\/div><\/div>\n\n\n\n<div style=\"aspect-ratio:1;min-height:unset;\" class=\"wp-block-cover pr is-style-cover-banner has-theme-white-color has-text-color has-link-color wp-elements-1af01b943c89c0d96a4763f8042b9547 has-aspect-ratio\"><img decoding=\"async\" class=\"wp-block-cover__image-background wp-image-412 size-full\" alt=\"\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/wp-content\/uploads\/2025\/11\/webmagazine-banner.jpg\" data-object-fit=\"cover\"\/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-theme-black-background-color has-background-dim-30 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-large-font-size\"><a href=\"https:\/\/docs.google.com\/forms\/d\/e\/1FAIpQLSdVJqXZMd4AP3KNy8BTIeevpdJ8Xota_zXMJ7DowtLa_Uz9Yg\/viewform?usp=publish-editor\" target=\"_blank\" rel=\"noreferrer noopener\">Register now!<br>for web magazine<\/a><\/p>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large engineering-logo\"><a href=\"https:\/\/www.eng.hokudai.ac.jp\/english\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/themes\/ring-communication\/assets\/images\/engineering-logo.svg\" alt=\"Faculty and Graduate School of Engineering Hokkaido University\"\/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large hokkaidouniversity-logo\"><a href=\"https:\/\/www.global.hokudai.ac.jp\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img decoding=\"async\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/themes\/ring-communication\/assets\/images\/hokkaidouniversity-logo.svg\" alt=\"Hokkaido University\"\/><\/a><\/figure>\n<\/aside>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"mailto:advisory@eng.hokudai.ac.jp\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/11\/bnr-advisory-en.png\" alt=\"Contact us for nformation \u0003on ollaborative research or academic onsultation !\nadvisory@eng.hokudai.ac.jp\" class=\"wp-image-456\" srcset=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/11\/bnr-advisory-en.png 800w, https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-content\/uploads\/sites\/2\/2025\/11\/bnr-advisory-en-768x576.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Featured Research Selected Articles Selected Projects Most Read Updated on March 31, 2026 Keywords more&#8230; Research Field Year<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-19","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":66,"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages\/19\/revisions"}],"predecessor-version":[{"id":510,"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages\/19\/revisions\/510"}],"wp:attachment":[{"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/media?parent=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}