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A nanofilter composed of carbon nanotube-silver composites for virus removal and antibacterial activity improvement

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Journal of Environmental Sciences 2016年第4期28卷 275-283页

作者： jun Pyo Kim Jae Ha Kim Jieun Kim Soo No Lee Han-Oh park Nano Development Team Bioneer Corporation Daejeon 306-220 Republic of Korea

We have developed a new nanofilter using a carbon nanotube-silver composite material that is capable of efficiently removing waterborne viruses and *** nanofilter was subjected to plasma surface treatment to enhance its flow rate,which was improved by approximately 62%.Nanoscale pores were obtained by fabricating a carbon nanotube network and using nanoparticle fixation technology for the removal of *** pore size of the nanofilter was approximately 38 nm and the measured flow rate ranged from 21.0 to 97.2 L/（min·m^2）under a pressure of 1–6 kgf/cm^2 when the amount of loaded carbon nanotube-silver composite was 1.0 mg/cm^*** nanofilter was tested against Polio-,Noro-,and Coxsackie viruses using a sensitive real-time polymerase chain reaction assay to detect the presence of viral particles within the *** trace of viruses was found to flow through the nanofilter with carbon nanotube-silver composite loaded above 0.8 mg/cm^***,the surface of the filter has antibacterial properties to prevent bacterial clogging due to the presence of 20-nm silver nanoparticles,which were synthesized on the carbon nanotube surface.

关键词： Carbon nanotube Silver nanoparticle Virus removal Nanofilter Water purification

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融合移位窗口注意力的光流计算方法

计算机辅助设计与图形学学报 2024年第8期36卷 1255-1262页

作者：安峰戴军韩振苏州工业园区服务外包职业学院智能制造学院苏州215123 同济大学经济与管理学院上海210092

针对端到端的光流计算方法容易受限于运动模糊、遮挡和大位移的问题,通过引入注意力机制实现对遮挡像素进行更准确的预测,提出一种融合移位窗口注意力的光流计算方法.首先使用移位窗口注意力对原有的特征图进行特征增强,获取更具全局自... 详细信息

针对端到端的光流计算方法容易受限于运动模糊、遮挡和大位移的问题,通过引入注意力机制实现对遮挡像素进行更准确的预测,提出一种融合移位窗口注意力的光流计算方法.首先使用移位窗口注意力对原有的特征图进行特征增强,获取更具全局自相似性的特征,弥补了卷积特征的局部性特点;然后使用移位窗口注意力进行相关体解析,包括2D运动向量解析和光流增量的计算,获得更准确的光流增量;最后引入遮挡图作为位置编码,在计算注意力时考虑更多的像素位置关系.实验结果表明,在Sintel数据集上,端到端的误差达到1.33;在FlyingChairs数据集上,单帧计算时间为69 ms,比全局运动聚合方法减少4.2%,超过了常见光流计算方法的精度和效率.

关键词：光流计算自注意力机制移位窗口注意力位置编码

Secondary endoscopic submucosal dissection for locally recurrent or incompletely resected gastric neoplasms

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World Journal of Gastroenterology 2018年第33期24卷 3776-3785页

作者： Da Hyun jung Young Hoon Youn Jie-Hyun Kim Jae jun park Hyojin park Department of Internal Medicine Gangnam Severance Hospital Yonsei University College of Medicine

AIM To investigate the feasibility and safety of secondary endoscopic submucosal dissection(ESD) for residual or locally recurrent gastric tumors. METHODS Between 2010 and 2017, 1623 consecutive patients underwent ESD for gastric neoplasms at a single tertiary referral center. Among these, 28 patients underwent secondary ESD for a residual or locally recurrent tumor. Our analysis compared clinicopathologic factors between primary ESD and secondary ESD groups. RESULTS The en bloc resection and curative rate of resection of secondary ESD were 92.9% and 89.3%, respectively. The average procedure time of secondary ESD was significantly longer than primary ESD(78.2 min vs 55.1 min, P = 0.004), and the adverse events rate was not significantly different but trended slightly higher in the secondary ESD group compared to the primary ESD group(10.7% vs 3.8%, P = 0.095). Patients who received secondary ESD had favorable outcomes without severe adverse events. During a mean follow-up period, no local recurrence occurred in patients who received secondary ESD. CONCLUSION Secondary ESD of residual or locally recurrent gastric tumors appears to be a feasible and curative treatment though it requires greater technical efficiency and longer procedure time.

关键词： Secondary endoscopic submucosal dissection Endoscopic submucosal dissection Gastric neoplasms Residual tumors Recurrent tumors

Atomically thin heterostructure with gap-mode plasmon for overcoming trade-off between photoresponsivity and response time

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Nano Research 2021年第5期14卷 1305-1310页

作者： Khang june Lee Cheolmin park Hyeok jun Jin Gwang Hyuk Shin Sung-Yool Choi School of Electrical Engineering Center for Advanced Materials Discovery towards 3D DisplaysKorea Advanced Institute of Science and Technology291 Daehak-roYuseong-guDaejeon34141Republic of Korea

Two-dimensional(2D)materials have recently provided a new perspective on optoelectronics because of their unique layered structure and excellent physical ***,their potential use as optoelectric devices has been limited by the trade-off between photoresponsivity and response ***,based on a vertically stacked atomically thin p-n junction,we propose a gap-mode plasmon structure that simultaneously enables enhanced responsivity and rapid *** atomically thin 2D materials act as a spacer for enhancing the gap-mode plasmons,and their short transit length in the vertical direction allows fast photocarrier *** demonstrate a high responsivity of up to 8.67 A/W with a high operation speed that exceeds 35 MHz under a 30 nW laser *** photocurrent,absorption,and a numerical simulation are used to verify the effectiveness of the gap-mode plasmons in the *** believe that the design strategy proposed in this study can pave the way for a platform to overcome the trade-off between responsivity and response time.

关键词： atomically thin heterostructure gap-mode plasmons photodetectors high responsivity fast response time

Restoration of common bile duct diameter within 2 weeks after endoscopic stone retraction is a preventive factor for stone recurrence

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Hepatobiliary & Pancreatic Diseases International 2018年第3期17卷 251-256页

作者： Jin Jeon Sung Uk Lim Chang-Hwan park Chung-Hwan jun Seon-Young park Jong-Sun Rew Department of Internal Medicine Chonnam National University Hospital Department of Internal Medicine Mokpo Hankook Hospital

Background： Little information is available about the relationship between restoration of common bileduct （CBD） diameter after endoscopic stone retraction and recurrence of CBD stones in elderly *** present study was to determine whether restoration of CBD diameter is a preventive factor for CBDstone recurrence in elderly patients who underwent endoscopic retrograde cholangiopancreatography（ERCP）.

关键词： Restoration Common bile duct Endoscopic retrograde cholangiopancreatography Common bile duct stone

Dynamics of ecosystems and anthropogenic drivers in the Yellow Sea Large Marine Ecosystem

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Acta Oceanologica Sinica 2022年第6期41卷 1-3页

作者： jun Sun Yinfeng Guo Gyung Soo park Andrew Hudson Institute for Advanced Marine Research China University of GeosciencesGuangzhou 511462China National Marine Hazard Mitigation Service Ministry of Natural ResourcesBeijing 100194China Department of Marine Biotechnology Anyang UniversityAnyang 14028R.O.Korea Bureau for Policy and Programme Support United Nations Development ProgrammeNew York 10017USA

In the developed world,governance of marine ecological environment is the important part of the national ecological and economic *** Yellow Sea is one of large marine ecosystems in the seas of East Asia,which is an extension of one of the largest continental shelf areas,and forms a huge but shallow sediment body in its south area which is geographically unique in the *** a region with the most fragile natural environment,unparalleled global ecological significance and the most urgent protection needs,the Yellow Sea ecological zone is becoming a common concern of countries around the Yellow Sea and beyond,such as tidal flats and the staging migratory birds(Murray et al.,2015).

关键词： shallow tidal shelf

Study on the Confidentiality in International Commercial Arbitration

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Study on the Confidentiality in International Commercial Arb...

作者： park Hyung jun 中国政法大学

学位级别：硕士

虽然学界对于国际商事仲裁的保密性问题尚无定论,世界各国对于仲裁保密性问题的态度也各不相同,但是国际商事仲裁保密性问题的存在是毋庸置疑的。然而究竟什么是国际商事仲裁的保密性,它的价值何在,它的法律基础又是什么?这些都是值得... 详细信息

虽然学界对于国际商事仲裁的保密性问题尚无定论,世界各国对于仲裁保密性问题的态度也各不相同,但是国际商事仲裁保密性问题的存在是毋庸置疑的。然而究竟什么是国际商事仲裁的保密性,它的价值何在,它的法律基础又是什么?这些都是值得我们认真思考的问题。此外,由于保密义务是保密性问题的具体化,它的主要方面也体现了保密性的内涵,因此,保密义务在国际商事仲裁中发挥着举足轻重的作用。本文拟从国际商事仲裁保密性的法律性质,适用范围,主体,限制与例外,违反保密义务的救济措施,保密义务的执行及其在实践中的影响等角度对国际商事仲裁的保密性问题进行阐释,在此基础上提出如何完善当前的国际商事仲裁保密性制度的建议,从而满足当事人对国际商事仲裁的新需求并且发挥仲裁所具有的其它纠纷解决方式无法比拟的优势。遵循以上脉络,本文分四章进行阐述：第一章是国际商事仲裁保密性问题的概述。本章着重介绍了国际商事仲裁中保密性问题的基本概念。在厘清私人性与保密性关系的基础上分析国际商事仲裁保密性的现状并阐述了保密性在国际商事仲裁中的价值包括维护公共形象以及保护商业秘密和敏感信息。最后,分别从仲裁机构的规则和主权国家的法律两方面来讨论国际商事仲裁保密性的法律基础。第二章讨论了国际商事仲裁保密性的具体事项。本章主要涉及五个方面：第一,国际商事仲裁保密性的法律性质;第二,国际商事仲裁保密性的适用范围,包括仲裁的存在本身,与仲裁程序相关的资料和信息,仲裁裁决,仲裁庭的所有决定;第三,国际商事仲裁保密义务的主体;第四,国际商事仲裁保密义务的限制与例外;第五,违反保密义务的救济措施;第六,国际商事仲裁中保密义务的执行与期限。第三章主要分析了在实践中仲裁保密性的消极影响,仲裁的保密性不利于困际商事惯例的形成和仲裁的公正与高效,并妨碍公众获得信息。此外,本章还探讨了保密性制度的施行后果例如对双方当事人提供不平等的保护以及对双方当事人违反保密义务施加不同的影响,甚至挫伤当事人选择仲裁来解决纠纷的积极性。第四章提出了如何完善国际商事仲裁保密性制度的建议。本章共提出四条改良途径包括当事人在合同中约定,在仲裁机构的仲裁规则中加以规定,以及在内国法和国际条约中规定,并且分析了在国际商事仲裁中如何把握仲裁的保密性与透明性之间的平衡。在此基础上,提出了具有实践意义的保护仲裁保密性的建议。

关键词：国际商事仲裁的保密性影响及后果完善

Roles of humidity and heat treatment temperatures on YBa_2Cu_3O_(7-x) coated conductors by trifluoroacetic acid-metal organic deposition process

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中国有色金属学会会刊：英文版 2009年第4期19卷 956-960页

作者： Seok-Hern JANG jun-Hyung LIM Chang-Min LEE Eui-Cheol park Soo-Min HWANG jun-Hyuk CHOI Jong-Hyun SHIM Jin-Hyun park Won KIM Jinho JOO School of Advanced Materials Science and Engineering Sungkyunkwan University

YBa2Cu3O7-x(YBCO) films were fabricated on an LAO substrate using the trifluoroacetic acid-metal organic deposition(TFA-MOD) method and the effects of the humidity and heat treatment temperatures on the microstructure,degree of texture and critical properties of the films were *** order to understand the combined effects of the humidity and the calcining and firing temperatures on critical properties,heat-treatment was performed at various temperatures with the other processing variables *** films were calcined at 400-430 ℃ and fired at 750-800 ℃ in a 0-12.1% humidified Ar-O2 *** texture was determined by pole-figure *** amount of the BaF2 phase was effectively reduced and a sharp and strong biaxial texture was formed under a humidified atmosphere,which led to increased critical *** addition,the microstructure varied significantly with firing temperature but changed little with calcining *** highest IC of 40 A/cm-width,which corresponds to JC value of 1.8 MA/cm2,was obtained for the films fired at 775 ℃(in 12.1% humidity) after calcining at 400-430 ℃.It is likely that the highest IC value is due to the formation of a more pure YBCO phase,c-axis grains,and a denser microstructure.

关键词： YBa2Cu3O7 热处理温度三氟乙酸沉积过程湿度涂层导体有机金属微观结构变化

Effects of Al addition on microstructure and mechanical properties of extruded Mg-3Bi alloy

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Journal of Magnesium and Alloys 2022年第7期10卷 1887-1898页

作者： Sang-Cheol Jin Jae Won Cha jun Ho Bae Hui Yu Sung Hyuk park School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Implementation Research Division Korea Institute of Materials ScienceChangwon 51508Republic of Korea School of Materials Science and Engineering Hebei University of TechnologyTianjin 300130China

Effects of Al addition to a Mg±Bi binary alloy on its microstructural characteristics and tensile properties after extrusion are investigated via extrusion of Mg-3Bi±x Al(x=0,1,and 2 wt%)billets and analysis of the extruded *** Al addition negligibly affects the second-phase particles of the extruded alloy;however,an increase in the Al content causes significant decreases in the average grain size and maximum texture intensity of the extruded material owing to an increase in the area fraction of dynamically recrystallized(DRXed)*** Al addition improves the strength of the extruded alloy;this improvement is attributed to the enhanced grain-boundary hardening and solid-solution hardening effects induced by grain refinement and Al solute atoms,*** the Al content increases from 0 wt%to 1 wt%and 2 wt%,the tensile elongation increases substantially from 2.8%to 9.4%and 16.9%,*** reduction in the number and size of un DRXed grains with increasing Al content suppresses the formation and coalescence of cracks in the un DRXed grains during tension,which results in a significant improvement in the tensile ductility of the extruded *** tensile deformation,large undesirable twins that act as crack initiation sites are locally formed in the un DRXed grains of the Mg-3Bi alloy,whereas relatively smaller twins are uniformly formed in both the DRXed and the un DRXed grains of the Mg-3Bi-2Al ***,the extruded Mg-3Bi-2Al alloy has a substantially higher tensile yield strength±elongation product(2924 MPa%)than the extruded Al-free B3 alloy(381 MPa%).

关键词： Mg-Bi-Al alloy Extrusion Microstructure Strength Ductility