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CT结肠成像筛查检出意外的肠外病变:临床和经济影响

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国际医学放射学杂志 2008年第A6期31卷 499-500页

作者： P.j.Pickhardt M.E.Hanson D.j.Vanness j.Y.Lo D.H.Kim a.j.tay-lor.冯洁玲 Department of Radiology University of Wisconsin School of Medicine and Public Health E3/311 Clinical Science Center 600 Highland Ave Madison WI 53792-3252USA.

目的在大量筛查人群中,评价CT结肠成像发现结肠外病变的几率并评估额外检查费用。方法本回顾性研究通过机构审查委员会批准。

关键词： CT结肠成像无症状检查费用外科操作诊断检查超声检查相关费用影像检查年平均统计分析

Interorgan communication in neurogenic heterotopic ossification: the role of brain-derived extracellular vesicles

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Bone Research 2024年第1期12卷 137-152页

作者： Weicheng Lu jianfei Yan Chenyu Wang Wenpin Qin Xiaoxiao Han Zixuan Qin Yu Wei Haoqing Xu jialu Gao Changhe Gao Tao Ye Franklin R.tay Lina Niu Kai jiao Department of Stomatology Tangdu Hospital&State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration&School of StomatologyThe Fourth Military Medical UniversityXi’anShaanxiChina State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration&National Clinical Research Center for Oral Diseases&Shaanxi Key Laboratory of Stomatology School of StomatologyThe Fourth Military Medical UniversityXi’anShaanxiChina The Dental College of Georgia Augusta UniversityAugustaGAUSA

Brain-derived extracellular vesicles participate in interorgan communication after traumatic brain injury by transporting pathogens to initiate secondary ***-related proteins encapsulated in brain-derived extracellular vesicles can cross the blood‒brain barrier to reach distal *** proteins initiate inflammatory dysfunction,such as neurogenic heterotopic *** recurrent condition is highly debilitating to patients because of its relatively unknown pathogenesis and the lack of effective prophylactic intervention ***,a rat model of neurogenic heterotopic ossification induced by combined traumatic brain injury and achillotenotomy was developed to address these two *** examination of the injured tendon revealed the coexistence of ectopic calcification and fibroblast *** relationships among brain-derived extracellular vesicles,fibroblast pyroptosis and ectopic calcification were further investigated in vitro and in *** injection of the pyroptosis inhibitor Ac-YVAD-cmk reversed the development of neurogenic heterotopic ossification in *** present work highlights the role of brain-derived extracellular vesicles in the pathogenesis of neurogenic heterotopic ossification and offers a potential strategy for preventing neurogenic heterotopic ossification after traumatic brain injury.

关键词： neurogenic ossification pathogenesis

Quality Guided Phase Unwrapping for Fringe Projection Profilometry

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实验力学 2006年第1期21卷 71-76页

作者： C.j.tay Department of Mechanical Engineering National University of Singapore 10 Kent Ridge Crescent Singapore 119260

Fringe projection technique is a non-contact, full field 3-D shape measurement method. The object depth information is recorded in one or several deformed fringe patterns. The phase-shifting algorithm or the Fourier transform method can be used to extract the wrapped phase data. A phase unwrapping process is then applied to retrieve a continuous phase distribution, which represents the surface profile of the test object. In this paper, a quality-guided phase unwrapping approach is incorporated and two novel phase quality evaluation methods are proposed to facilitate the phase unwrapping process.

关键词：相品质相展开边缘发射相移傅立叶变换

阿里巴巴跨境并购与发展之研究 ——以LAZADA为例

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阿里巴巴跨境并购与发展之研究 ——以...

作者： tay j Heen 北京外国语大学

学位级别：硕士

随着在国家“一带一路”全球经济背景下,中国商业企业也开始走出国门,进入国际电子商务市场。中国电子商务行业在世界电子商务市场上占据着越来越重要的地位,其2017年的交易量比起2014年几乎翻了一倍（从3.9万亿元增长到7.5万亿元）。... 详细信息

随着在国家“一带一路”全球经济背景下,中国商业企业也开始走出国门,进入国际电子商务市场。中国电子商务行业在世界电子商务市场上占据着越来越重要的地位,其2017年的交易量比起2014年几乎翻了一倍（从3.9万亿元增长到7.5万亿元）。这样爆炸性的增长,积极推动了中国电子商务行业在全球市场上的扩张。而随着这一领域的快速发展,互联网企业出现了许多新的经营模式,但也产生了许多与互联网行业并购相关的新问题。通过对国内外相关学者的文献梳理,我发现在国外由于起步较早,跨国并购相关的理论体系和成果都比较完整,研究范围也比较广泛;而中国的研究主要集中在并购动机的影响、并购的风险防范、跨国并购的绩效等方面。然而,不论是国内还是国外,却鲜少能够查到关于将电子商务企业海外并购理论与实际案例研究相结合的文献,这些历史相关研究大部分都是基于海外并购理论所产生的衍生研究。因此,本文以阿里巴巴集团并购来赞达公司作为切入点,结合跨国并购领域的理论以及东南亚地区的实际收购案例,对阿里巴巴集团并购来赞达公司进行动因、风险与防范以及财务表现三个方面的整合性分析,使本文更加切合实际,并且为相关企业提供更多参考经验。本文将跨国并购的类型分为横向跨境并购、纵向跨境并购和混合跨境并购三种类型,而本文将阿里巴巴集团对来赞达公司的并购类型定义为横向跨境并购,因为不论是阿里巴巴集团还是来赞达公司都有相似的属性,属于互联网电子商务公司。横向跨境并购的含义可以解释为“并购双方和被并购方分别属于两个或两个以上不同的国家,但生产或销售相似或相同的产品,称之为横向跨境并购”。2016年4月,阿里巴巴集团以10亿美元投资收购了来赞达公司51%的股权。一年后,在阿里巴巴2017财政年度的财务报表下,阿里巴巴集团旗下的国际商务零售业务的收入从22.04亿元飙升至73.36亿元,占阿里巴巴营业总收入的4.64%,同比增长232.85%。而这一业绩的产生主要得益于来赞达在东南亚电子商务市场的经营收入。2017年6月和2018年3月,阿里巴巴分别再注资10亿美元和20亿美元,而巨额投资也成功换回了爆炸性的增长回报。从阿里巴巴2018财政年度的财务报表中能够看出,其国际商务零售业务的收入从73.36亿元双倍增长至142.16亿元,占阿里巴巴总收入的5.68%,同比增长93.78%。在本文的分析部分,我将对阿里巴巴集团并购来赞达公司案例为出发点,从动因、风险与防范、财务绩效这三个维度进行整合分析,以便知道此次并购行为的合理性与逻辑性,找出这个并购策略的优缺点以及试图提出一个更好的策略组合和问题解决方案,让互联网公司对于跨境并购能够有一个更好地了解,并引以为鉴。

关键词：阿里巴巴集团跨境并购东南亚国家来赞达公司互联网企业

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观察性研究:什么是队列研究?

国际输血及血液学杂志 2008年第2期31卷 190-191页

作者： tay j Tinmouth A 陈雪成都市血液中心

描述性研究(也叫做观察性研究)被认为是"自然的"实验,研究者按照疾病自然史进行研究。这种研究可以为治疗方案、预防措施或其他暴露因素的作用提供信息。观察性研究的目的是在减少资源利用的情况下,分析暴露因素和结局之间有无因果关联... 详细信息

描述性研究(也叫做观察性研究)被认为是"自然的"实验,研究者按照疾病自然史进行研究。这种研究可以为治疗方案、预防措施或其他暴露因素的作用提供信息。观察性研究的目的是在减少资源利用的情况下,分析暴露因素和结局之间有无因果关联。观察研究有两种常见的类型:队列研究和病例对照研究。另外几个研究设计包括横断面研究和社会生态学研究也是

关键词：观察性研究暴露因素生态学研究描述性研究资源利用治疗方案预防措施因果关联提供信息对照研究队列研究断面研究自然史设计包实验疾病病例

Enabling Technologies for Autonomous Robotic Systems in Manufacturing

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Transactions of Nanjing University of Aeronautics and Astronautics 2024年第4期41卷 403-431页

作者： ERDŐS Gábor ABAI Kristóf BEREGI Richárd CSEMPESZ jános CSERTEG Tamás GODÓGábor HAjÓS Mátyás HÁY Borbála HORVÁTH Dániel HORVÁTH Gergely jUNIKIÁdám KEMÉNY Zsolt KOVÁCS András NACSA jános PANITI Imre PEDONE Gianfranco TAKÁCS Emma TIPARY Bence ZAHORÁN László VÁNCZA józsef Institute for Computer Science and Control Hungarian Research Network(HUN-REN SZTAKI)BudapestHungary Department of Manufacturing Science and Technology Budapest University of Technology and Economics(BME)BudapestHungary EPIC InnoLabs Nonprofit Ltd. BudapestHungary Eötvös lor.nd University(ELTE) BudapestHungary

Research of autonomous manufacturing systems is motivated both by the new technical possibilities of cyber-physical systems and by the practical needs of the *** operation in semi-structured industrial environments can now be supported by advanced sensor technologies,digital twins,artificial intelligence and novel communication *** enable real-time monitoring of production processes,situation recognition and prediction,automated and adaptive(re)planning,teamwork and performance improvement by *** paper summarizes the main requirements towards autonomous industrial robotics and suggests a generic workflow for realizing such *** case studies will be presented from recent practice at HUN-REN SZTAKI in a broad range of domains such as assembly,welding,grinding,picking and placing,and *** various solutions have in common that they use a generic digital twin concept as their *** making general recommendations for realizing autonomous robotic solutions in the industry,open issues for future research will be discussed.

关键词： industrial robotics autonomy digital twin enabling technology

Non-contact evaluation of the resonant frequency of a microstructure using ultrasonic wave

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Acta Mechanica Sinica 2010年第2期26卷 317-323页

作者： X. Kang X. Y. He C.j. tay C. Quan Department of Applied Mechanics Nanjing University of Science and Technology 210094 Nanjing China Institute of Engineering Mechanics Southeast University210096 Nanjing China Department of Mechanical Engineering National Universityof Singapore 9 Engineering Drive 1 117576 Singapore Singapore

This paper presents a novel non-contact method for evaluating the resonant frequency of a microstructure, Firstly, the microstructure under test is excited by ultrasonic waves. This excitation method does not impose any undefined load on the specimen like the electrostatic excitation and also this is the first actual use of ultrasonic wave for exciting a microstructure in the literature. Secondly, the amplitudes of the microstructure are determined by image edge detection using a Mexican hat wavelet transform on the vibrating images of the microstructure. The vibrating images are captured by a CCD camera when the microstructure is vibrated by ultrasonic waves at a series of discrete high frequencies （〉30 kHz）. Upon processing the vibrating images, the amplitudes at various excitation frequencies are obtained and an amplitude-frequency spectrum is obtained from which the resonant frequency is subsequently evaluated. A micro silicon structure consisting of a perforated plate （192 × 192 μm） and two cantilever beams （76 × 43 μm） which is about 4 μm thickness is tested. Since laser interferometry is not required, thermal effects on a test object can be avoided. Hence, the setup is relatively simple. Results show that the proposed method is a simple and effective approach for evaluating the dynamic characteristics of microstructures.

关键词： Non-contact Microstructure· Resonant frequency Ultrasonic wave Image processing

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胃癌预防主要策略:根除幽门螺杆菌

新发传染病电子杂志 2018年第4期3卷 193-194页

作者： Barry j Marshall Alfred Chin-Yen tay The University of Western Australia M504Perth WA 6009 Australia

迄今为止,胃癌仍然是全球最常见的三大癌症之一。据报道,中国每年就有大约400 000例的新发胃癌病例报告[1]。在一些地区,虽然胃癌的发病率和死亡率已大幅下降,但胃癌的5年生存率仍低于25%。自Robin Warren教授和笔者于1984年发现幽门螺... 详细信息

迄今为止,胃癌仍然是全球最常见的三大癌症之一。据报道,中国每年就有大约400 000例的新发胃癌病例报告[1]。在一些地区,虽然胃癌的发病率和死亡率已大幅下降,但胃癌的5年生存率仍低于25%。自Robin Warren教授和笔者于1984年发现幽门螺杆菌以来,1994年世界卫生组织认定其为Ⅰ类致癌物。经过多年对全世界幽门螺杆菌感染者的治疗,已经证明根除幽门螺杆菌有助于改善个体的生活质量,预防消化性溃疡病并减少胃癌[2]。

关键词：根除幽门螺杆菌胃癌预防世界卫生组织消化性溃疡病 5年生存率病例报告生活质量死亡率

Low-temperature densification of high-entropy(Ti,Zr,Nb,Ta,Mo)C-Co composites with high hardness and high toughness

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journal of Advanced Ceramics 2022年第5期11卷 805-813页

作者： Si-Chun LUO Wei-Ming GUO Kevin PLUCKNETT Hua-tay LIN School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006China School of Mechanical and Electronic Engineering Pingxiang UniversityPingxiang 337000China Department of Process Engineering and Applied Science Dalhousie UniversityHalifax B3J1ZICanada

In order to prepare high toughness(Ti,Zr,Nb,Ta,Mo)C ceramics at low temperatures while maintaining high hardness,a liquid-phase sintering process combined with Co-based liquid-phase extrusion strategy was adopted in this *** densification temperature can be lowered to 1350℃,which is much lower than the solid-state sintering temperature(~2000℃)generally employed for high-entropy carbide *** sintered at 1550℃and 30 MPa applied pressure,part of the Co-based liquid-phase was squeezed out of the graphite mold,such that only~3.21 vol%of Co remained in the high-entropy *** to the Co-free solid-state sintered(Ti,Zr,Nb,Ta,Mo)C ceramics,prepared at 2000℃and 35 MPa,the hardness was slightly decreased from 25.06±0.32 to 24.11±0.75 GPa,but the toughness was increased from 2.25±0.22 to 4.07±0.13 MPa·m^(1/2).This work provides a new strategy for low-temperature densification of high-entropy carbides with both high hardness and high toughness.

关键词： high-entropy carbide ceramics liquid-phase sintering microstructure grain size mechanical properties