1,952 research outputs found

    The Construction of On-line Sephadex LH-20 Liquid Chromatography × Reversed Phase Liquid Chromatography System and the Study on the Chemical Constituents of Flos Carthami

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    本研究针对二维液相在复杂样品分离中的不足,结合新的混合模式色谱,构建基于SephadexLH-20×RPLC联用的新型二维色谱方法体系,并探索该系统在中药材分析和分离制备上的应用。 构建SephadexLH-20与反相色谱联用的在线分析系统,以含多个化合物的模式混合物作为研究对象,通过探究各化合物的液相保留行为证明了葡聚糖凝胶在甲醇/水洗脱模式下可兼具尺寸排阻、氢键吸附、分配三种分离机制。以红花作为研究对象,在确定溶剂洗脱模式的基础上考察第一维SephadexLH-20柱的柱长、流速等因素对分离效果的影响,确定分离参数;选择适合该二维系统的接口;将构建的SephadexLH-20×RPLC联...A novel on-line comprehensive two-dimensional mixed-mode Sephadex LH-20 chromatography × reversed phase liquid chromatography (Sephadex LH-20 × RPLC) was constructed with the development of mixed-mode chromatography technique. Firstly, the mixture of reference compounds was separated on Sephadex LH-20 with methanol or methanol/water as elution solvent. Based on the retention time of these compou...学位:医学硕士院系专业:药学院_药物分析学学号:3232014115342

    制定法解释中的想象性重构

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    法律解释中的想象性重构方法要求法官站在立法者的立场,设想立法者若处在当下会如何回答法律问题.想象性重构解释方法来源于“制定法的衡平”理念,承认法律语言存在模糊性或者可能与当下语境并不契合,并主张司法者站在立法者的角度推断立法者的意图.想象性重构可以在适用意图、语义意图和目的性意图三种不同的概括程度上展开,这就要求法官综合考虑相关理由以得出融贯的结论.然而,想象性重构毕竟是一种实质评价性的漏洞填补方法,在司法实践过程中解释者必须注意立法意图的参照系和概括程度的选择、重建历史条件的难题和价值选择三个难题.唯有同时借助感性认识和理性认识,法官才能够从想象性重构中获得妥当解释.中国博士后科学基金会第60批次面上资助(2016M600498);中央高校基本科研业务费专项资金资助(20720171006);厦门大学人文社会科学“校长基金·创新团队”课题“法理学前沿问题研究

    Adjudication between Facts and Norms

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    司法裁判的本质是法官将隐含于法律规范中的意义进行释明、得出裁判规范,并将之与具体案件事实进行等置从而得出判决结论的过程。由此而言之,司法裁判的关键构成部分包括事实与规范两个部分。若欲明了司法裁判之过程,首先就必须要理解法官是如何处理法律规范和案件事实的。换言之,司法裁判必定是出穿梭来往于规范与事实之间的。 本报告的目的是从法学方法论、司法裁判理论的角度,展现出法官如何完成事实与规范之间的“眼光往返流转”。本报告以司法裁判中的规范和事实作为重点分析视角,共分两个主要部分。上编是“司法中的规范与解释”,下编是“司法中的事实与判断”。每一编中汇集了近两年来作者已经成型/发表或尚在构思中的主题论文。...The essence of judicial judgment is the process that the judge clarifies the meaning hided in legal norm, concludes adjudication norm, and makes it equally compared to the specified case fact and then draws a judgment conclusion. From this it can be said that, the key parts which constitute judicial judgment include two parts, fact and norm. If you want to know the process of judicial judgment cle...学位:博士后院系专业:法学院_法学理论学号:201519000

    Fission life-time calculation using a complex absorbing potential

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    A comparison between the semi-classical approximation and the full quantum calculation with a complex absorbing potential is made with a model of the fission of 258Fm. The potential barrier is obtained with the constrained Skyrme HF+BCS theory. The life-time obtained by the two calculations agree with each other the difference being only by 25%.Comment: 5 pages, 2 figures, Conference proceedings of CNR*15 workshop, Tokyo, October 2015 to be published in EPJ Web of Conference

    Study on Catalytic Asymmetric Oxidation of Sulfides and Study on the Secondary Metabolites from two Fungi

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    手性亚砜化合物是一类重要的手性药物,例如,爱索奥美拉唑,具有重要的经济价值;它还作为重要的手性辅剂和中间体,广泛应用于手性天然产物的合成和手性胺等化合物的合成。硫醚不对称催化氧化是合成手性亚砜化合物最具原子经济性和实用价值的的方法,现在已经取得长足进展。但是,底物适用面窄、绿色工艺等问题仍然比较突出,而且还有多种底物尚未开发,不对称亚砜化反应有待更广泛而深入的研究。在前人研究基础上,我们首次考察了由最简单、最廉价、也最具代表性的水杨醛和苯丙氨醇、异亮氨醇衍生的Schiff碱-V络合物催化串级的硫醚亚砜化和动力学拆分,对芳基烷基硫醚(包括苄基)多种底物取得78-99%ee,产率大多中等到良好。基...Some chiral sulfoxides are important and valuable chiral drugs, such as esomeprazole. Others are important chiral auxiliaries and intermediates, which are extensively used in synthesis of chiral natural products and amines. Catalytic asymmetric oxidation of sulfides is the best method for synthesis of chiral sulfoxides with respect to atomic economy and practice. Although many advances have been a...学位:理学硕士院系专业:化学化工学院化学系_有机化学学号:20022504

    Design and Implementation of Vocational Education Information Management System for Demobilized Soilders

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    单纯的依靠人工方式进行退役士兵职业教育管理方式工作量大,容易造成数据冗余和数据错误,不利于数据维护、共享、监管,无法满足工作的需要。为了进一步提高退役士兵职业教育的服务能力和管理水平,设计并开发退役士兵职业教育管理信息系统具有现实意义。论文的研究以退役士兵职业教育工作为背景,阐述了退役士兵职业教育管理信息系统的设计和实现过程。 本系统采用J2EE平台,应用B/S结构进行系统的构建。总体设计采用MVC(Model模型—View视图—Controller控制器)三层的架构设计,分别使用了Struts、Hibernate、Spring等开源成熟框架,并使用Jquery丰富页面展现,提高了用户体验。...Simply rely on artificial ways of demobilized soldiers occupational workload management not only education but also easily lead to data redundancy and data errors, data is not conducive to the maintenance, sharing, regulatory, unable to meet the needs of their work. In order to further improve service and management level vocational education demobilized soldiers, retired soldiers to design and de...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201223026

    Discussion on Protection of the Rights and Interests of Small and Medium-sized Shareholders In Listed Company of China — From a perspective of “Ping An”

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    上市公司在我国创立及发展,已有近二十年的历史,自初始的强调股东权益保护至现今所强调的中小股东权益保护,中间几经波折。但令我们欣慰的是,不论是股东权益的保护是中小股东权益的保护,都取得了长足的发展。也由此,我们能够相信中小股东权益保护的问题,经过社会的不懈努力,也一定能够日趋完善,在社会主义市场经济发展的大潮中,中小股东、中小股民对我国经济的繁荣也一定能够起到更大的促进作用。本文就中小股东权益的保护问题,浅议些许拙见,为中小股东权益的保护制度的完善提供帮助。2008年年初是我国股市由繁荣逐渐走向低迷的一个阶段,在此动荡纷乱的阶段,作者选取具有代表性的“中国平安”再融资事件作为案例,以法学分析为基...The creation and development of listed companies in China has nearly two decades of history. The emphasis has been transformed into the protection of the interests of small and medium-sized shareholders from the protection of the interests of shareholders after several twists and turns. However, we are gratified that both the protection of the interests of shareholders and the protection of the i...学位:工商管理硕士院系专业:管理学院高级经理教育中心(EMBA项目)_高级管理人员工商管理硕士(EMBA)学号:X20051519
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