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256篇 您的检索式:作者名="Gea"
    题名 作者 年代 出处 被引量
1Endoscopic management of esophageal varices显示文摘The rupture of gastric varices results in variceal hemorrhage, which is one the most lethal complications of cirrhosis. Endoscopic therapies for varices aim to reduce variceal wall tension by obliteration of the varix. The two principal methods available for esophageal varices are endoscopic sclerotherapy (EST) and band ligation (EBL). The advantages of EST are that it is cheap and easy to use, and the injection catheter fits through the working channel of a diagnostic gastroscope. Endoscopic variceal ligation obliterates varices by causing mechanical strangulation with rubber bands. The following review aims to describe the utility of EBL and EST in different situations, such as acute bleeding, primary and secondaryJoaquin Poza Cordon Consuelo Froilan Torres Aurora Burgos García Francisco Gea Rodriguez Jose Manuel Suárez de Parga 2012World Journal of Gastrointestinal Endoscopy2012,4,7:27
2What Do We Really Know about Cellulose Biosynthesis in Higher Plants?显示文摘Cellulose biosynthesis is one of the most important biochemical processes in plant biology. Despite the considerable progress made during the last decade, numerous fundamental questions related to this key process in plant development are outstanding. Numerous models have been proposed through the years to explain the detailed molecular events of cellulose biosynthesis. Almost all models integrate solid experimental data with hypotheses on several of the steps involved in the process. Speculative models are most useful to stimulate further research investigations and bring new exciting ideas to the field. However, it is important to keep their hypothetical nature in mind and be aware of the risk that some undemonstrated hypotheses may progressively become admitted. In this review, we discuss the different steps required for cellulose formation and crystallization, and highlight the most important specific aspects that are supported by solid experimental data.Gea Guerriero Johanna Fugelstad Vincent Bulone 2010Journal of Integrative Plant Biology2010,52,2:14
3研究生教育国际化培养模式研究、探索与实践——以现代设计方法国际化共建课程为例显示文摘研究生教育国际化对于高校培养高层次创新型人才具有重要意义。通过系统地分析研究生国际化教育的国内外研究现状,针对我国研究生教育国际化进程中主要存在的问题,结合国际化共建课程现代设计方法,探索研究生教育国际化培养模式,提出研究生国际化培养策略,并给出研究生国际化培养模式的实践方法。滕晓艳 史冬岩 钟宇光 Gea Haechang 2016大学教育2016,,8:11
4Design of piezoelectric energy harvesting devices subjected to broadband random vibrations by applying topology optimization显示文摘Converting ambient vibration energy into electrical energy by using piezoelectric energy harvester has attracted a lot of interest in the past few years.In this paper,a topology optimization based method is applied to simultaneously determine the optimal layout of the piezoelectric energy harvesting devices and the optimal position of the mass loading.The objective function is to maximize the energy harvesting performance over a range of vibration frequencies.Pseudo excitation method (PEM) is adopted to analyze structural stationary random responses,and sensitivity analysis is then performed by using the adjoint method.Numerical examples are presented to demonstrate the validity of the proposed approach.Zhe-Qi Lin Hae Chang Gea Shu-Tian Liu 2011Acta Mechanica Sinica2011,27,5:6
5Role of the Microenvironment in the Pathogenesis and Treatment of Hepatocellular Carcinoma显示文摘Virginia Hernandez–Gea Sara Toffanin Scott L. Friedman Josep M. Llovet 2013Gastroenterology2013,,3:6
6基于Stochastic Kriging模型的不确定性序贯试验设计方法显示文摘不确定性研究中需要计算大量重复样本,这无疑对计算量较大的数值模拟提出了巨大的挑战.通过试验设计方法可以有效地减少不确定性研究中的计算量,然而,目前考虑不确定性的试验设计方法研究大多仍专注于传统试验设计方法.针对这一问题,为了通过更为合理的计算资源分配得到更精准的不确定性评估,基于有限样本的Stochastic Kriging模型提出了针对不确定性问题的三阶段序贯试验设计方法.首先,通过特定位置的采样对IMSE进行简化,构建了预选步进信息选取策略,通过预选增量样本总个数以及各取样位置处的分布信息,达到随机代理模型目标精度要求;同时,基于IMSE构建了基于步进信息的单轮选点试验设计准则,以同时考虑设计变量的取样位置及其分布信息.由算例与传统方法的对比分析可知,所建立方法通过等量的采样得到了精度更高的随机代理模型,验证了其在不确定性问题中的可行性和优势.王波 GEA Haechang 白俊强 张玉东 宫建 张卫民 2016工程设计学报2016,23,6:2
7Software Project Management Approaches for Global Software Development: A Systematic Mapping Study显示文摘Global Software Development(GSD) is a well established field of software engineering with the benefits of a global environment. Software Project Management(SPM) plays a key role in the success of GSD. As a result, the need has arisen to study and evaluate the downsides of SPM for GSD, to thereby pave the way for the development of new methods, techniques, and tools with which to tackle them. This paper aims to identify and classify research on SPM approaches for GSD that are available in the literature, to identify their current weaknesses and strengths, and to analyze their applications in industry. We performed a Systematic Mapping Study(SMS) based on six classification criteria. Eighty-four papers were selected and analyzed. The results indicate that interest in SPM for GSD has been increasing since 2006. As a class of approaches, the most frequently reported methods(40%) are those used for coordination, planning, and monitoring, along with estimation techniques that can be used to better match a distributed project. SPM for GSD requires further investigation by researchers and practitioners, particularly with respect to cost and time estimations. These findings will help overcome the challenges that must to be considered in future SPM research for GSD, especially regarding collaboration and time-zone differences.Manal El Bajta Ali Idri Joaquín Nicolás Ros José Luis Fernández-Alemán Juan Manuel Carrillo de Gea Félix García Ambrosio Toval 2018Tsinghua Science and Technology2018,23,6:2
8Topology optimization of structures with geometrical nonlinearities 显示文摘GEA H C LUO J H 2001Comput & Struet2001,79,:1
9Optimal 3Dstiffener design with fre-quency considerations显示文摘Gea H C Fu Y 1997Advances in EngineeringSoftware1997,28,:1
10Optimal stiffener design for interi- or sound reduction using a topology optimization based approach 显示文摘Luo J H Gea H C 2003Journal of Vibration and Acoustics2003,125,7:1
11In vitro sensitivity of Verticillium fungicola to selected fungicides显示文摘Gea F J Tello J C Honrubia M 1996My copathologia1996,136,3:1
12Effects of Strength Mis-matching on the Fracture Behavior of Nuclear Pressure Steel A508-III Welded Joint显示文摘ZHU Z Q JING H Y GEA J G 2005Materials Science and Engineering2005,,390:1
13A systematic topology optimization ap proaeh for optimal stiffener design显示文摘Luo J Gea H C 1998Structural Optimization1998,16,4:1
14Study of the pyrolysis liquids obtained from different sewage sludge显示文摘Fonts I Azuara M Gea G 2009Journal of Analytical and Applied Pyrolysis2009,85,12:1
15Structural elucidation of a PDE-5 inhibitor detected as an adulterant in a health supplement 显示文摘GEA X W LOW M Y ZOU P 2008J Pharm Biomed Anal2008,48,4:1
16Study of the pyrolysis liquids obtained from different sewage sludge显示文摘I. Fonts M. Azuara G. Gea M.B. Murillo 2008Journal of Analytical and Applied Pyrolysis2008,,1:1
17Design of multi-component structural systems for optimal layout topology and joint locations显示文摘CHICKERMANE H GEA H C 1997Engineering with Computers1997,13,:1
18Topology optimization, a new microstructure based design domain method 显示文摘Hae chang Gea 1996Computers & Structures1996,61,5:1
19Optimal stiffener design for interior sound reduction using a topology optimization based approach under review显示文摘LUO J H GEA H C 2003Journal of Vibration and Acoustics Transactions of the ASME2003,125,:1
20Region of interest micro-CT of the middle ear: a practical approach显示文摘GEA S L R DECRAEMER W F DIRCKX J J J 2005J X-Ray Sci Technol2005,13,3:1
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