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国际医学放射学杂志 2021年第1期44卷 112-113页

作者： I.Hwang W.Cho R.yoo K.M.Kang D.H.yoo T.j.Yun 王明月

摘要MRI超选择性(SS)动脉自旋标记(ASL)技术具有无创性的优点,可作为数字减影血管造影术(DSA)的补充或替代方法,用于监测血管重建区域。目的评估SS-ASL MR

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Artificial intelligence and colonoscopy − enhancements and improvements

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Artificial Intelligence in Gastrointestinal Endoscopy 2021年第4期2卷 157-167页

作者： Byung Soo yoo Steve M D'Souza Kevin Houston Ankit Patel james Lau Alsiddig Elmahdi Parth j Parekh David johnson Department of Medicine Eastern Virginia Medical SchoolNorfolkVA 23507United States Division of Gastroenterology Department of Internal MedicineEastern Virginia Medical SchoolNorfolkVA 23505United States

Artificial intelligence is a technology that processes and analyzes information with reproducibility and *** application in medicine,especially in the field of gastroenterology,has great potential to facilitate in diagnosis of various disease ***,the role of artificial intelligence as it pertains to colonoscopy revolves around enhanced polyp detection and *** aim of this article is to review the current and potential future applications of artificial intelligence for enhanced quality of detection for colorectal neoplasia.

关键词： Artificial intelligence Colon polyp Adenoma detection rate Dysplasia Inflammatory bowel disease Colon preparation

Kidney regeneration: Where we are and future perspectives

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World journal of Nephrology 2014年第3期3卷 24-30页

作者： joao Paulo Zambon Renata S Magalhaes Inkap Ko Christina L Ross Giuseppe Orlando Andrea Peloso Anthony Atala james j.yoo Wake Forest Institute for Regenerative Medicine North Carolina NC 27104 United States Universidade Federal de Sao Paulo Sao Paulo 04021-001 Brazil Fondazione IRCCS Policlinico San Matteo Pavia and University of Pavia 27103 Pavia Italy

In 2012,about 16487 people received kidney transplants in the United States,whereas 95022 candidates were on the waiting list by the end of the *** advances in renal transplant immunology,approximately 40%of recipients will die or lose graft within10 *** limitations of current therapies for renal failure have led researchers to explore the development of modalities that could improve,restore,or replace the renal *** aim of this paper is to describe a reasonable approach for kidney regeneration and review the current literature regarding cell sources and mechanisms to develop a bioengineering *** to kidneys peculiar anatomy,extracellular matrix based scaffolds are rational starting point for their *** perfusion of detergents through the kidney vasculature is an efficient method for delivering decellularizing agents to cells and for removing of cellular material from the *** efforts have focused on the search of a reliable cell source to provide enrichment for achieving stable renal cell *** an efficient bioengineered kidney,these cells must be attached to the organ and then maturated into the bioractors,which simulates the human body environment.A functional bioengineered kidney is still a big challenge for *** the last ten years we have got many improvements on the field of solid organ regeneration;however,we are still far away from the main ***,regenerative centers worldwide have been striving to find feasible strategies to develop bioengineered ***-scaffold technology gives hope to end-stage renal disease patients who struggle with morbidity and mortality due to extended periods on dialysis or *** potential of bioengineered organ is to provide a reliable source of organs,which can be refunctionalized and transplanted.

关键词：肾脏移植免疫学治疗方法临床分析

通过收斂机头发泡挤出的泡体动力学——结构泡沫塑料加工的研究之三

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国外塑料 1986年第4期 49-54页

作者： H.j.yoo C.D.Han 华南工学院

引言更好地了解熔融聚合物中泡体动力学(即泡体的增长或破裂)对成功地进行发泡挤出有着实际的重要意义。过去,人们已经发表了稍为广泛的各种研究结果[1—7],这些研究考虑了悬浮于单介质(牛顿型或粘弹性)的单个圆气泡的增长,但是,几乎没... 详细信息

引言更好地了解熔融聚合物中泡体动力学(即泡体的增长或破裂)对成功地进行发泡挤出有着实际的重要意义。过去,人们已经发表了稍为广泛的各种研究结果[1—7],这些研究考虑了悬浮于单介质(牛顿型或粘弹性)的单个圆气泡的增长,但是,几乎没有发表过什么实验数据来证实或否认所发表

关键词：泡体机头头部含气熔体收敛流道发泡气泡尺寸流率动力学

充模过程中泡体的增长——结构泡沫塑料加工的研究之四

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国外塑料 1987年第1期 55-67页

作者： C.D.Han H.j.yoo 孙大文

引言充模包括熔融聚合物注射入空模腔。注射熔融聚合物有均匀流型和射流流型,这取决于注射速率,熔体粘度,挤出膨胀程度和模腔尺寸。Villamizar和Han以前的论文已经表明充模中的泡体动力学(泡体的增长和(或)破裂)取决于注射率,熔体温度,... 详细信息

引言充模包括熔融聚合物注射入空模腔。注射熔融聚合物有均匀流型和射流流型,这取决于注射速率,熔体粘度,挤出膨胀程度和模腔尺寸。Villamizar和Han以前的论文已经表明充模中的泡体动力学(泡体的增长和(或)破裂)取决于注射率,熔体温度,模具温度,熔体粘度和弹性,发泡剂浓度,气体在溶体中的溶解和扩散。

关键词：泡体注射压力弹性初始阶段早期阶段力学性能充模过程含气熔体

可单向和双向运转的自锁模掺钛蓝宝石环形激光器

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光学学报 1997年第8期17卷 1080-1082页

作者：柴路张伟力王清月 K.M.yoo 天津大学精密仪器与光电子工程学院超快激光研究室香港科技大学物理系

首次报道了采用六镜环形腔结构的掺钛蓝宝石激光器。该激光器既可以实现自锁模的单向运转，也可以实现自锁模的双向同时运转。

关键词：掺钛蓝宝石激光器环形腔自锁模单双向运转

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Integrity Assessment of Pipe System in a Full-Scale Membrane Water Treatment Plant

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journal of Water Resource and Protection 2014年第4期6卷 363-374页

作者： H. K. Oh j. Y. Eom S. H. Kang H. C. yoo Y. j. Kim D. M. yoon j. H. Lim Daewoo Institute of Construction Technology Suwon City Korea Next Engineering & Service Seoul Korea The Office of Waterworks Seoul Metropolitan Government Seoul Korea

The pipe system roles as a main bridge between membrane modules and pumps in membrane water treatment plants. Membrane operation modes generally consist of filtration and backwash processes in a normal mode, a pressure decay test as an integrity test and a chemical circulation through pipe system in a cleaning mode. Thus factors effecting on membrane performance should be sufficiently considered before design and operation. This study evaluated flow analysis for vibration diagnostic and evaluation of the fatigue lifetime in the microfiltration system applied for a drinking water treatment plant. Vibration of main membrane pipelines was measured to identify the source of vibration. Also natural frequency and fluid dynamics was calculated by computational fluid dynamics. It showed that maximum magnitude frequencies were at 12 Hz and 22 Hz, respectively at water and air pipeline during filtration and backwash. Backwash process caused mainly vibration on the backwash water pipe. The calculated frequency from analysis of frequency response and CFD was in a good agreement with the measured frequency. Fatigue analysis showed that pipelines were getting little damage caused by vibration. Fatigue lifetime was predicted more than 15 years under the operation condition of daily filtration, and more than 27 years under the operation condition of a daily backwash mode, resulting in minor damage on the pipe lifetime.

关键词： Fatigue Integrity Lifetime Membrane Pipe System Vibration

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加筋土挡土墙离心模型试验

浙江水利科技 1993年第1期21卷 58-63页

作者： N.j.yoo H.Y.KO 张云波南朝鲜Chuncheon Kanweon 国立大学美国Boulder Colorado 大学土木工程系

一、引言近25年来使用加筋土的工程已多得惊人,现有许多方法用于设计这些工程中,由于加筋土结构的复杂性状尚不清楚,这些设计方法常根据经验法则或未验证过的理论,所以有些场合十分保守。要开发一个用于加筋土性状的既安全又经济的设计... 详细信息

一、引言近25年来使用加筋土的工程已多得惊人,现有许多方法用于设计这些工程中,由于加筋土结构的复杂性状尚不清楚,这些设计方法常根据经验法则或未验证过的理论,所以有些场合十分保守。要开发一个用于加筋土性状的既安全又经济的设计正确理论,主要障碍是缺少足尺的加筋土结构破坏试验实测资料。在正常重力场中的小比尺模型试验不能复制现场应力状态,而它对加筋土结构的变形及破坏起着重要作用。

关键词：加筋土挡墙离心模型试验

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高温超导薄膜(Y0.6Ho0.4)Ba2Cu3O7-δ/SAT/MgO的制备

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低温物理学报 1999年第3期21卷 67-70页

作者：秦水介付兴华贵州大学物理系

用脉冲激光沉积法先在ＭｇＯ衬底上制备一层Ｓｒ２（ＡｌＴａ）Ｏ６薄膜作为过渡层，再制备（Ｙ０．６Ｈｏ０．４）Ｂａ２Ｃｕ３Ｏ７－δ超导薄膜．新超导薄膜的零电阻温度Ｔｃ０为８９Ｋ，临界电流密度Ｊｃ为２．３×１０６Ａ／ｃｍ２... 详细信息

用脉冲激光沉积法先在ＭｇＯ衬底上制备一层Ｓｒ２（ＡｌＴａ）Ｏ６薄膜作为过渡层，再制备（Ｙ０．６Ｈｏ０．４）Ｂａ２Ｃｕ３Ｏ７－δ超导薄膜．新超导薄膜的零电阻温度Ｔｃ０为８９Ｋ，临界电流密度Ｊｃ为２．３×１０６Ａ／ｃｍ２（７７Ｋ），用Ｘ射线衍射仪及扫描电子显微镜分析了薄膜特性．结果表明，新超导薄膜（Ｙ０．６Ｈｏ０．４）Ｂａ２Ｃｕ３Ｏ７－δ可成功地生长在价廉的基片ＭｇＯ上．

关键词：临界电流密度超导性能 Ba2Cu3O Ho SAT/MgO 过渡层地层零电阻温度

成年发作的进行性黏蛋白性组织细胞增多症2例散发病例

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世界核心医学期刊文摘（皮肤病学分册） 2006年第5期2卷 59-60页

作者： Young A. Olivere j. yoo S. 任建文 Department of Dermatology Johns Hopkins Medical Institutions 601 North Caroline StreetBaltimoreMD21287United States

Progressive mucinous histiocytosis is a rare, benign, non-Langerhans’ cell histiocytosis limited to the skin. Ten cases all women in four families and one sporadic case have been described in the literature. The disorder usually begins in childhood and progresses slowly. We report two sporadic cases of adult-onset progressive mucinous histiocytosis in unrelated African-American women, aged 48 and 55 years, respectively, who developed red-brown and flesh-coloured, asymptomatic papules on the face, the arms and the legs without truncal, mucosal or visceral involvement. The lesions showed no spontaneous regression. Both patients lacked associated systemic symptoms, including polyuria, polydipsia or seizures. There was no underlying hyperlipidaemia, paraproteinaemia or lymphoproliferative disease. No family history of similar lesions could be identified. Light microscopy revealed dermal proliferation of spindle-shaped histiocytes with abundant mucin deposition. Electron microscopy demonstrated a high number of myelin figures or zebra bodies in the cytoplasm of histiocytes. On immunohistochemistry, positive staining with macrophage markers-CD68, HAM56 and lysozyme and factor XIIIa, a transglutaminase present in dermal dendrocytes, and negative staining with Langerhans’ cell markers CD1a and S100 and CD34, a marker presentin dermal dendritic cells derived from uncommitted mesenchymal cells, were observed.

关键词：组织细胞增多症黏蛋白散发病例组织细胞增生多尿朗格汉斯细胞病变蛋白巨噬细胞树突状细胞

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