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作者： ro.ert kennedy otieno（奥提努）大连海事大学

学位级别：硕士

在国际供应链中关于货物的处理,港口效率是一个很重要的因素。港口效率直接影响国内和国际供应链中的运输和物流。在这种竞争环境下,港口技术效率的评估对于反映它们运用资源相对高水平的程度和它们的地位及揭示其立场是非常重要的。本... 详细信息

在国际供应链中关于货物的处理,港口效率是一个很重要的因素。港口效率直接影响国内和国际供应链中的运输和物流。在这种竞争环境下,港口技术效率的评估对于反映它们运用资源相对高水平的程度和它们的地位及揭示其立场是非常重要的。本研究采用DEA技术和随机前沿生产函数模型分析港口技术效率并且审查对港口技术效率重大的因素。本研究采用了定量和定性的数据。采用数据收集工具,包括出版的文章比如：书籍,期刊,港口年度审查和因特网信息。数据的可靠性测试,以确认研究的准确性和有效性。此外,研究人员筛选和比较数据与利益相关者的官方数据。本研究适用了Malmquist DEA和随机前沿生产函数的Translog形式来评价港口技术效率,并计算无效率的影响。研究人员适用最大似然法和两个条件来测试假说。本研究也应用了片面广义似然比统计量来检查低效性的影响。此项成果揭示出港口运行及海港检查技术效率的特征和意义。本研究的结果是：港口吞吐量,停泊设施和私营部门参与基础设施的程度是直接影响港口技术效率。私营部门参与的最佳水平,提高四个辽宁港口技术效率,根据研究的结果是75.27%私/公有和充分私有的参与程度。港口管理和其他利益相关者,因此非常重视,可以提高港口资源的利用率,也欣然接受战略港口扩张。本研究的限制是,它没有考虑成本因素,由于缺乏数据。它也留下了港口服务和人力资源上的考虑。另一个限制是,该研究只研究四个辽宁省主要港口。进一步的研究应集中在这次没有研究的因素。

关键词：港口技术效率 DEA 随机前沿生产函数模型

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An ab Initio Study of Mechanical and Electronic Pro.erties of Stable Phases of CsXBr₃ (X = Ge, Si) Compounds for Solar Cell Applications

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Open Journal of Microphysics 2023年第2期13卷 15-26页

作者： kennedy Juma Wanyama Phillip Wilfsen otieno Nyawere James Sifuna Department of Physical and Biological Sciences Kabarak University Nakuru Kenya Department of Natural Sciences Catholic University of Eastern Africa Nairobi Kenya

Utilising the density functional theory, the mechanical and electrical characteristics of Cesium Germanium Bromide, CsGeBr3 and Cesium Silicon Bromide CsSiBr3 compounds were computed. The complicated and unique physical and chemical pro.erties of these materials include the ideal geometric pro.erty, a limited electronic band structure, a charge density distribution, and specific van Hove singularities in the electronic density of states. With the use of the quantum espresso code and pseudo-potentials taken from the quantum espresso data repository, we have applied density functional theory. Plane Wave (PW) basis set and Projector Augmented Wave (PAW) pseudo potentials were used to compute the ground state energy. For the exchange correlation, where plane wave basis sets are used to expand the electronic structure wave function, the Generalised Gradient Approximation (GGA) was employed. For the computation of mechanical behaviour, including the bulk modulus and elastic constants with their derivatives, Thermo_pw was used as a post-processing algorithm. The theoretical framework that is being taught gives a thorough understanding of the many qualities and possible uses for solar cells and other opto-electronic devices. Both the cubic (high-temperature) and tetragonal (low-temperature) phases of CsGeBr3 were discovered to have an appropriate gap for solar cells. The edge-sharing monoclinic phase exhibits a greater distortion of the band structure than the cubic phase, which has a lower total energy and a somewhat bigger electronic gap. Although our estimations are less definite because the matching silicon-based compounds have not yet been created, they nonetheless point to a small gap for cubic CsGeBr3 of about 0.2 - 0.8 eV.

关键词： Electronic Mechanical Stability Perovskite

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New developments in Western blot technology

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Chinese Chemical Letters 2015年第4期26卷 416-418页

作者： Shi Jin ro.ert T.kennedy Department of Chemistry University of Michigan

Western blotting is a highly valued method for protein identification and relative quantitation in complex samples. It combines size-based electrophoretic separation with immunoaffinity to identify specific proteins. This technique remains popular and has become a workhorse in biochemical research and clinical laboratories. Despite its utility and popularity, this method has many limitations including slow analysis, incompatibility with limited sample application, low throughput and low information content. Recently there has been significant success in improving different aspects of Western blotting. In this review, we provide an overview of the developments in the area of improving conventional Western blotting methods with a focus on recent developments in microfluidic Western blotting. We overview different separation platforms, and discuss studies on protein transfer methods as well as protein immobilization methods and chemistries. We also describe integrated miniaturized platforms that can perform rapid separations and immunodetections.

关键词： Western blotMicrofluidicGel electrophoresislmmunoassay

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Cellular crosstalk during cholestatic liver injury

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Liver Research 2017年第1期1卷 26-33页

作者： Joanne Thomson Laura Hargrove Lindsey kennedy Jennifer Demieville Heather Francis Research Central Texas Veterans Healthcare SystemTXUSA Digestive Disease Research Center Baylor Scott&White HealthTXUSA Medicine Texas A&M Health Science CenterTempleTXUSA

The functions of the liver are very *** detoxifying blood to storing glucose in the form of glycogen and producing bile to facilitate fat digestion,the liver is a very active and important *** liver is comprised of many varied cell types whose functions are equally *** line the biliary tree and aid in transporting and adjusting the composition of bile as it travels to the *** stellate cells and portal fibroblasts are located in different areas within the liver architecture,but both contribute to the development of fibrosis upon activation after liver *** cells,including those that constitute the peribiliary vascular plexus,are involved in functions other than blood delivery to and from the liver,such as supporting the growth of the biliary tree during *** cells are normally found in healthy livers but in very low ***,after injury,mast cell numbers greatly increase as they infiltrate and release factors that exacerbate the fibrotic *** not an all-inclusive list,these cells have individual roles within the liver,but they are also able to communicate with each other by cellular *** this review,we examine some of these pathways that can lead to an increase in the homeostatic dysfunction seen in liver injury.

关键词： Mast cells Paracrine Cholangiocytes Hepatic stellate cells Crosstalk

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