{"id":23,"date":"2025-09-24T20:47:29","date_gmt":"2025-09-24T11:47:29","guid":{"rendered":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/?page_id=23"},"modified":"2025-11-05T13:54:24","modified_gmt":"2025-11-05T04:54:24","slug":"projects","status":"publish","type":"page","link":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/projects\/","title":{"rendered":"Selected Projects"},"content":{"rendered":"<div class=\"wp-block-query\">\n<ul class=\"query_content selected_all wp-block-post-template is-layout-flow wp-block-post-template-is-layout-flow\">\n  <li id=\"featured000256\" 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\">\n\n      <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp001\/\">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-content\">\n        <p>This study aims to elucidate the removability of &#8220;non-culturable&#8221; 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        <p>[<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp001\/\">Featured Research<\/a>]<\/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    <\/div>\n  <\/li>\n<!-- TEMP: FEATURED_POST ARCHIVE -->\n  <li id=\"featured000257\" 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\">\n\n      <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp002\/\">Research and Development of Core Technologies for Next-Generation Semiconductor Microfabrication<\/a><\/h3>\n      <div class=\"wp-block-post-content\">\n        <p>In April 2025, an R&#038;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        <p>[<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202510fp002\/\">Featured Research<\/a>]<\/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    <\/div>\n  <\/li>\n<!-- TEMP: FEATURED_POST ARCHIVE -->\n  <li id=\"featured000465\" 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\">\n\n      <h3 class=\"wp-block-post-title\"><a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fp001\/\">Development of hydrogen production technology using plasma-assisted water electrolysis<\/a><\/h3>\n      <div class=\"wp-block-post-content\">\n        <p>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        <p>[<a href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/featured\/202604fp001\/\">Featured Research<\/a>]<\/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    <\/div>\n  <\/li>\n<!-- TEMP: FEATURED_POST ARCHIVE -->\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<\/ul>\n<nav class=\"pager pager_index\">\n  <ul class='page-numbers'>\n\t<li><span aria-current=\"page\" class=\"page-numbers current\">1<\/span><\/li>\n\t<li><a class=\"page-numbers\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages\/23\/page\/2\/\">2<\/a><\/li>\n\t<li><a class=\"next page-numbers\" href=\"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages\/23\/page\/2\/\">><\/a><\/li>\n<\/ul>\n<\/nav>\n<!-- \/\/ NAV: PAGER_ARCHIVE -->\n<\/div>\n<!-- LIST: POST CONTENT_TYPE -->\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-23","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages\/23","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=23"}],"version-history":[{"count":11,"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages\/23\/revisions"}],"predecessor-version":[{"id":453,"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/pages\/23\/revisions\/453"}],"wp:attachment":[{"href":"https:\/\/pr.eng.hokudai.ac.jp\/rc\/en\/wp-json\/wp\/v2\/media?parent=23"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}