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Pattern of instent neointimal formation compared to native atherosclerosis in the coronary bifurcation lesions： volumetric intravascular ultrasound analysis

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Chinese Medical Journal 2013年第18期126卷 3505-3510页

作者： XU Jian-qiang Young Bin Song Joo-Yong Hahn seung-Hyuk choi Jin-Ho choi LU Cheng-zhi Sang Hoon Lee Kyung Pyo Hong Jeung Euy Park Hyeon-Cheol Gwon Division of Cardiology Department of Medicine Samsung MedicalCenter Sungkyunkwan University School of Medicine Seoul Korea Cardiovascular CenterTianjin First Central Hospital Tianjin 300192 China

Background No clinical study has systematically analyzed and compared circumferential neointimal and plaque distribution of stent neointimal proliferation and in native atherosclerotic plaques. This study aimed to investigate and compare the pattern of instent neointimal formation and native atherosclerosis in the coronary bifurcation lesions by volumetric analysis using systematic intravascular ultrasound （IVUS）. Methods We examined bifurcation lesions in native coronary artery （plaque group, n=102） and stented bifurcations at 9-month follow-up （neointima group, n=51） using volumetric IVUS analysis of both the main vessel （MV） and side branch （SB）. Three 5-mm segments were analyzed; the proximal MV （MVp）, distal MV （MVd） and SB ostium （SBo）. For each segment, volumetric analysis was performed in each of four quadrants （divided according to the branch takeoff and the geometric center of the lumen）; carinal, epicardial, abcarinal, and myocardial. The eccentricity index was defined as the ratio of the abcarinal plaque （or neointimal） volume to the carinal plaque （or neointimal） volume. Results The plaque distribution differed significantly between the four quadrants, with the largest in the abcarinal quadrant, followed by the myocardial, epicardial, and carinal quadrants. The distribution of neointima was similar in the MV, but the four quadrants in the SB did not differ significantly. The eccentricity indices of both the MVd （P 〈0.001） and SBo （P=-0.001） were significantly higher for the plaque group than the neointima group. Conclusions The distribution of neointimal proliferation seems to have a similar pattern to that of atherosclerotic plaque in native coronary arteries. Darticularlv in the main vessel, but the trend is less prominent.

关键词： atherosclerosis bifurcations plaque distribution neointimal distribution intravascular ultrasound

A Study on Development of Balanced Scorecard for Management Evaluation Using Multiple Attribute Decision Making

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Journal of Software Engineering and Applications 2010年第3期3卷 268-272页

作者： Kwang Mo Yang Young Wook Cho seung Hee choi Jae Hyun Park Kyoung Sik Kang Department of Industrial & Management Engineering Myongji University Yongin Korea Department of Industrial & Manufacturing Engineering Pennsylvania State University Pennsylvania USA. Department of Industrial Engineering Yuhan University Puchoen Korea Department of Qualification Trend Analysis Human Resource Development Service Seoul Korea Department of Technology & Systems Management Induk Institute of Technology Seoul Korea

Recently, most businesses have introduced a system for improving their responsibility to the customers in terms of job improvement. For example, small-quantity batch production increases cost but improve efficiency of management. Companies have been introduced the balanced scorecard to evaluate their management as part of improvement, while they suffer from many trials and errors. Many businesses still have difficulty in introducing balance scorecard concept in their process, but we suggest a method to successfully introduce the balance scorecard. This study aims to suggest a new performance measurement model reflecting relative importance of the key performance indicators for each factor. Our model is applied to several companies in real-world to validate the new model. Also, our study proposes a methodology for an adequate performance measurement using multiple attribute decision making.

关键词： Balanced Scorecard Multiple Attribute Decision Making Management Evaluation

Experimental Study of Material Removal Process of Fused Silica Glass Using MR Jet Polishing System

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Experimental Study of Material Removal Process of Fused Sili...

Growth-inhibitory effect of neurotrophin-3-secreting adipose tissue-derived mesenchymal stem cells on the D283-MED human medulloblastoma cell line

第七届冶金与材料电磁过程国际会议（EPM2012）

作者： LEE Jung-Won CHO Yong-Kyu CAI Yue choi seung-Bok CHO Myeong-Woo Department of Mechanical Engineering Inha University

Recently,there has been an investigation of polishing processes that has considered new ultra-precision polishing technology for micro parts and optical parts such as those with aspheric and complex *** suitable means of polishing complex shapes is to use a jet of abrasive ***,aerodynamic disturbances and radial spreading are generated by the unstable polishing process of the jet on the surface of the workpiece when it is being polished.A method of jet stabilization has been proposed in which the original nozzle form of a jet of magnetorheological（MR） fluid contains abrasive particles that are magnetized using a *** paper details the design of an MR jet polishing system that uses an electromagnet,a nozzle,and a hydraulic unit to stabilize a slurry jet based on MR ***,for silica glass,the polishing spot and section profile are analyzed and the effect of the MR fluid jet polishing process is *** results of the experiment show that the removal profile is W-shaped and that,in this case,a stable can be proof of a distance of several tens of millimeters from the *** results show the possibility of applying the proposed polishing method using MR fluids in ultra-precision micro and optical parts production *** jet polishing shows great potential for use as a new type of precision surface polishing *** particular,this is a highly valuable process for the polishing of complex shapes such as micro parts,concaves parts,and cavities.

关键词： magnetorheological(MR) fluids optical part fused silica glass material removal rate MR jet polishing system

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Growth-inhibitory effect of neurotrophin-3-secreting adipose...

中国抗癌协会神经肿瘤专业委员会第八届学术会议

作者： Chae-Yong Kim Young-Hoon Kim seung Hee Cho Soo Jung Lee seung Ah choi Ji Hoon Phi seung-Ki Kim Kyu-Chang Wang Byung-Kyu Cho Department of Neurosurgery Seoul National University College of Medicine Department of Neurosurgery Seoul National University Bundang Hospital Division of Pediatric Neurosurgery Seoul National University Children's Hospital

Medulloblastoma（MBL）,the most common malignant pediatric brain tumor,is incurable in about one-third of patients and can lead to long-term disabilities despite current multimodal *** purpose of this study was to demonstrate in vitro biological effects of neurotrophins-3（NT-3） on MBL cells and to evaluate the growth-inhibitory effect of neurotrophin-3（NT-3）-secreting stem cells on tumor *** confirmed by western blotting that D283-MED cells express tyrosine kinase C,a specific receptor for *** the biological effects of NT-3 on MBL cells,we evaluated autophagy,apoptosis,senescence,and differentiation of tumor cells with *** NT-3 induced a concentrationdependent increase in apoptosis in the tumor cell line（P ＜ 0.001）.The high concentrations of NT-3 increased the expression of class III β-tubulin（P ＜ 0.001） and decreased the expression of Nestin（P ＜ 0.05）.NT-3-secreting stem cells were produced by nucleofecting ***-NT3 into human adipose tissue-derived mesenchymal stem cells（hAT-MSCs） and were confirmed by fluorescence microscopy and ***-layered co-culture experiments with the NT-3-secreting hAT-MSCs and D283-MED MBL cells were performed,and NT-3-induced cell death was studied by 3-（4,5-dimethylathiazol-2-yl）-2,5-dephenyltetrazolium bromide（MTT） ***,the high concentrations of NT-3-secreting hAT-MSCs significantly（P ＜ 0.05） increased the death of D283-MED cells in *** present study demonstrated that both apoptotic cell death and neuronal differentiation of tumor cells were the mechanisms of growth-inhibitory effect of NT-3-secreting hAT-MSCs on MBL cell line.

关键词： neurotrophin-3 adipose tissue-derived mesenchymal stem cell medulloblastoma apoptosis differentiation

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“明代遗民”:韩国华人历史探微

华侨华人历史研究 2012年第1期 54-64页

作者：崔承现金惠连韩国全南大学国际学部韩国全南大学离散者协同课程

论文运用历史研究方法,从倭乱时期的移民和明清交替时期的移民两个方面考察了明代遗民的迁移以及定居过程;分析了明代遗民同时具有对明朝、对韩国、对明代遗民社团的多重认同和形成这种认同的客观条件,并将明代遗民的地位变化过程与韩... 详细信息

论文运用历史研究方法,从倭乱时期的移民和明清交替时期的移民两个方面考察了明代遗民的迁移以及定居过程;分析了明代遗民同时具有对明朝、对韩国、对明代遗民社团的多重认同和形成这种认同的客观条件,并将明代遗民的地位变化过程与韩中关系的变化过程相结合进行探讨。相对于向来以单一民族自居的韩国,朝鲜时期的明代遗民,是对韩国民族的一种学术性挑战,同时明代遗民研究对韩国华侨华人历史研究也是一种新的开拓。

关键词：东北亚韩国华人研究移民研究明代遗民韩中关系

Correction: Acupuncture: a potent therapeutic tool for inducing adult neurogenesis

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Neural Regeneration Research 2015年第7期10卷 1119-1119页

作者： Min-Ho Nam Kwang Seok Ahn seung-Hoon choi

There is an error in affiliation for corresponding author seung-Hoon *** correct affiliation should be:Department of Medicine Consilience,Dankook University,Yongin,Korea,choish@*** online version of the original artic... 详细信息

关键词： a potent therapeutic tool for inducing adult neurogenesis Correction Acupuncture

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基于可靠性的工程设计

国外科技新书评介 2007年第11期 17-18页

作者： seung-Kyum choi Ramana V．Grandhi Robert A．Canfield 吴永礼 Geogia Tech Savannah USA Wright State University USA WPAFB（WRIGHT-PATTERSON AFB） USA 中国科学院力学研究所研究员

现代结构要求更危险和更复杂的设计，需要精确地了解结构的载荷、几何、材料性能、制造过程和运行环境等的不确定性。可靠性评估技术可用来发展安全设计，并确定在结构系统中的不确定性所产生影响，然而通过进一步的研究、试验和质量控... 详细信息

现代结构要求更危险和更复杂的设计，需要精确地了解结构的载荷、几何、材料性能、制造过程和运行环境等的不确定性。可靠性评估技术可用来发展安全设计，并确定在结构系统中的不确定性所产生影响，然而通过进一步的研究、试验和质量控制来提高结构的安全性和功效。

关键词：可靠性评估工程设计不确定性现代结构材料性能制造过程安全设计结构系统

Short-circuit Current Characteristics of Wind Generators

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电力系统自动化 2012年第8期36卷 110-114页

作者： seung-Jae LEE Myeon-Song choi Department of Electrical Engineering Myongji University

To study the effects of wind generators on distribution system protection,the short-circuit current(SCC) characteristics of wind generators is *** there are many researches on the issue,a clear agreement has not been reached so *** SCC characteristics for different wind generators are *** simulation is performed in the same system integrated with different kinds of wind generators,and their results are compared with those reported in IEEE *** detection possibility by overcurrent relay(OCR)is discussed based on the simulation results.

关键词：风力发电机组短路电流电流特性配电系统 PSCAD 过流继电器 IEEE 通过检测

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韩国土地公法史

盛京法律评论 2019年第2期7卷 -页

作者： [韩]崔承元全姬 [韩]成允姬韩国梨花女子大学法学专门大学院韩国自治法研究院辽宁大学法学院

本文主要检讨韩国公法领域的土地法制变迁历程。韩国以规制国民财产权为方向制定及修订了相关土地法律,通过合理有效利用土地促进国土资源均衡发展、增进公共福利。尽管过去韩国为了土地法制体系化做了很大努力,但土地相关法制未能实现... 详细信息

本文主要检讨韩国公法领域的土地法制变迁历程。韩国以规制国民财产权为方向制定及修订了相关土地法律,通过合理有效利用土地促进国土资源均衡发展、增进公共福利。尽管过去韩国为了土地法制体系化做了很大努力,但土地相关法制未能实现克服时代变化引发的状况,以及进行必要的分散性整顿和限制的立法需求。法律体系的规范整合性以及完成度不足、计划缺乏连接性、国土管理及规划不善,导致土地利用混乱、以居民为核心的利害关系人参与计划不足、欠缺实效性、缺乏环境保护反馈等诸多问题。土地法制应协调土地的社会拘束性以及公法规范,并且考虑到土地既是生活基础又是有限资源的特性,应以双面协调视角将内容体系分为所有和利用、管理和保全、开发和纠纷解决三个部分,这也应该是日后土地法典的形成体系。

关键词：土地公法国土计划土地计划法制