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Foreword to the Special Issue on PacificVAST 2018

Visual Informatics 2018年第1期2卷 1-1页

作者： Guest Editors jinwook Seo Issei Fujishiro Keio University Japan Seoul National University Republic of Korea

Welcome to the special issue on Pac迅cVAST 2018,held on 10 April 2018 in Kobe,*** has been held annually since 2013 as an international workshop on visual analytics in conjunction with IEEE PacificVis *** analytics(VA)is a discipline concerned with science and technology for analytical reasoning supported by interactive visual *** from the process of the past five years of inviting prominent researchers to share their state-of-the-art research and development results,PacificVAST this year launches a new publishing model intended to foster a stronger VA community in the Asia-Pacific region:All accepted,original papers are published in a special issue of the Elsevier Journal of Visual Informatics on the day of the workshop.

关键词： Visual reasoning VAST

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A Model of High-Speed Endovascular Sonothrombolysis with Vortex Ultrasound-Induced Shear Stress to Treat Cerebral Venous Sinus Thrombosis

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Research 2023年第1期2023卷 1-13页

作者： Bohua Zhang Huaiyu Wu Howuk Kim Phoebe J.Welch Ashley Cornett Greyson Stocker Raul G.Nogueira jinwook Kim Gabe Owens Paul A.Dayton Zhen Xu Chengzhi Shi Xiaoning Jiang Department of Mechanical&Aerospace Engineering North Carolina State UniversityRaleighNCUSA Department of Mechanical Engineering Inha University IncheonRepublic of Korea George W.Woodruff School of Mechanical Enginering Grgia lnstitute of TechnlogyAtlantaGAUSA Department of Biomedical Engineering University of Michigan Ann ArborMIUSA Department of Neurology Universityof Pittsburgh Medical CenterPttsburghPA USA Department of Biomedical Engineering University of North CarolinaChapel HillNCUSA Parker H.Petit Institute for Bioengineering and Bioscience Georgia Institute of TechnologyAtlantaGAUSA

This research aims to demonstrate a novel vortex ultrasound enabled endovascular thrombolysis method designed for treating cerebral venous sinus thrombosis(CVST).This is a topic of substantial importance since current treatment modalities for CVST still fail in as many as 20%to 40%of the cases,and the incidence of CvST has increased since the outbreak of the coronavirus disease 2019 *** with conventional anticoagulant or thrombolytic drugs,sonothrombolysis has the potential to remarkably shorten the required treatment time owing to the direct clot targeting with acoustic ***,previously reported strategies for sonothrombolysis have not demonstrated clinically meaningful outcomes(e.g.,recanalization within 30 min)in treating large,completely occluded veins or ***,we demonstrated a new vortex ultrasound technique for endovascular sonothrombolysis utilizing wavematter interaction-induced shear stress to enhance the lytic rate *** in vitro experiment showed that the lytic rate was increased by at least 64.3%compared with the nonvortex endovascular ultrasound treatment.A 3.1-g,7.5-cm-long,completely occluded in vitro 3-dimensional model of acute CVST was fully recanalized within 8 min with a record-high lytic rate of 237.5 mg/min for acute bovine clot ***,we confirmed that the vortex ultrasound causes no vessel wall damage over ex vivo canine *** vortex ultrasound thrombolysis technique potentially presents a new life-saving tool for severe CVST cases that cannot be efficaciously treated using existing therapies.

关键词： thrombolysis drugs vortex

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Status of a Sodium Cooled Fast Reactor Technology Development Program in Korea

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Journal of Energy and Power Engineering 2012年第9期6卷 1379-1397页

作者： Chungho Cho Younggyun Kim jinwook Chang Sang-Ji Kim Chan-Bock lee Seong-O Kim Jong-Bum Kim Hae-Yong Jeong Yong-Bum lee Yeong-Il. Kim Fast Reactor Technology Development Division Korea Atomic Energy Research Institute Daejeon 305-353 Republic of Korea

Korea imports about 97% of its energy resources as its available energy resources are extremely limited. Thus, the role of nuclear power in electricity generation is expected to become more important in future years. A fast reactor system is one of the most promising options for electricity generation with an efficient utilization of uranium resources and a reduction of radioactive wastes. Based on the experiences gained during the development of the conceptual designs for KALIMER （Korea advanced liquid metal reactor）, the KAERI （Korea Atomic Energy Research Institute） is currently developing advanced SFR （sodium cooled fast reactor） design concepts that can better meet the Gen IV （Generation IV） technology goals. The long-term advanced SFR development plan will be carried out toward the construction of an advanced SFR demonstration plant by 2028. Advanced concept design studies and the development of the advanced SFR technologies necessary for its commercialization and basic key technologies carried out by KAERI are included in this paper.

关键词： Sodium cooled fast reactor burner metal fuel pyroprocess.

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Rotational Intravascular Multidirectional Ultrasound Catheter for Sonothrombolysis of Retracted Clots:An in Vitro and in Vivo Study

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Engineering 2024年第11期42卷 235-243页

作者： Huaiyu Wu jinwook Kim Bohua Zhang Gabe Owens Greyson Stocker Mengyue Chen Benjamin C.Kreager Ashley Cornett Kathlyne Bautista Tarana Kaovasia Paul A.Dayton Zhen Xu Xiaoning Jiang Department of Mechanical and Aerospace Engineering North Carolina State UniversityRaleighNC 27695USA Joint Department of Biomedical Engineering The University of North Carolina at Chapel HillChapel HillNC 27599USA Department of Biomedical Engineering University of MichiganAnn ArborMI 48109USA

Thromboembolism in blood vessels poses a serious risk of stroke,heart attack,and even sudden death if not properly *** combined with ultrasound contrast agents has emerged as a promising approach for the effective treatment of *** reports have highlighted the potential of intravascular sonothrombolysis as a safe and effective treatment modality for deep vein thrombosis(DVT).However,its efficiency has not been validated through in vivo testing of retracted *** study aimed to develop a miniaturized multidirectional transducer featuring two 4-layer lead zir-conate titanate(PZT-5A)stacks with an aperture size of 1.4 mm1.4 mm,enabling both forward-and side-looking *** into a custom two-lumen 10-French(Fr)catheter,the capability of this device for intravascular sonothrombolysis was validated both in vitro and in *** low-dose tissue plasminogen activators and nanodroplets,the rotational multidirectional transducer reduced the retracted clot mass(800 mg)by an average of 52%within 30 min during in vitro *** lysis rate was significantly higher by 37%than that in a forward-viewing transducer without *** improvement was particularly noteworthy in the treatment of retracted ***,a long-retracted clot(>10 cm)was successfully treated within 40 min in vivo by creating a flow channel with a diameter>4 mm in a porcine DVT *** conclusion,these findings strongly suggest the potential of this technique for clinical applications in sonothrombolysis,offering a feasible solution for effectively treating thromboembolism,particularly in challenging cases involving retracted clots.

关键词： Intravascular ultrasound catheter Sonothrombolysis in vivo Retracted clots thrombolysis

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