Research on the Application of Entropy-TOPSIS Model for Substation Location

变电站是电力系统的枢纽中心，其站址选择的合理与否不仅与投资总额、运维成本、社会经济发展等经济效益息息相关，更影响着电网的稳定、设备的可靠运行等安全因素。变电站的选址是一个复杂、综合的过程，其影响因素众多，既有定量的又有定性的，既有效益型的又有成本型的。论文从电网构架、经济效益、施工便利程度、自然环境、基础设施等五方面出发，构建了以系统位置等16个影响因素为评价指标的评价体系，并深入分析了变电站选址的基本原则及流程。在此基础上，根据构建的评价指标体系详细分析了宁德市A地区220kV乙变电站四个待选方案的各影响因素，建立评价指标体系原始数据矩阵，引入基于熵权的TOPSIS模型进行深入地分析和计算，...Substation is the hub of electrical power system. The location of substation influences not only the total investment, operational costs, social development, but also the stability of power system and the safety of equipment etc. The substation location is a complex and comprehensive process. The factors which influence substation location are various, some of them are quantitative, some of them a...学位：工商管理硕士院系专业：管理学院_工商管理硕士(工商管理硕士)学号：1792013115103

Analysis and Design of Network Public Opinion Monitoring System Based on Cloud Platform

随着移动互联网技术的发展，网络传播也随之兴起，以往在传统新闻媒介上无法实现的个人表达自由的言论得到空前的发展，而这种言论往往具有突发性、非理性等特点，因此对网络舆情监测系统及相关技术进行研究设计具有很好的实际意义。 网络舆情监测需要对网络舆情进行采集、分析、提取并保存，以供查询、展示及预测等，数据抓取、数据解析、云存储是其中的三个关键技术。为了有效进行网络舆情监测，本文对以上三方面的关键技术展开研究，主要创新内容包括： 1．设计网络信息获取过程中的各种关键算法，包括：分布式bloom过滤器设计，解决爬虫系统的url重复爬取问题；高效http代理算法设计，解决网站对ip限制的问题；基于双消息...With the development of mobile internet, network communication is popular and people can exchange opinions with each other easily. Unfortunately, some of these opinions always seems to be unexpected and irrational. Thus, it is necessary to do some researches on how to detect network public opinions. In order to view and forecast network public opinions, it needs to collect all kinds of network in...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201223119

A Scheme Research and Demonstration Report of YCGC’s Acquisitions of HGYRLC

义马煤业集团股份有限公司（以下称义煤集团）的主要业务板块包括煤炭、化工等，其中，煤炭板块是义煤集团的核心业务板块，对整个集团的发展具有举足轻重的作用。义煤集团在河南境内的煤炭生产集中在西部的义马矿区和东部的洛阳矿区共两个矿区。西部的义马矿区现有13对生产矿井，其中10对生产矿井通有准轨铁路专用线，与国铁5个车站接轨。义煤集团位于洛阳的东部矿区共9对矿井，规划年产能843万吨，无配套铁路专用线的矿井，加上河南省煤炭资源整合后在东部矿区又整合了数十对小煤矿，也都没有铁路专用线。这些小煤矿复工复产后，其煤炭销售和运输将成为制约企业发展的瓶颈。 河南国能黄河物流有限公司（以下称黄河物流），位于新安县...The main business of Yima Coal Group Co., Ltd. (hereinafter refers to as Yima Coal Group ) covers coal, chemical industry etc., of which coal is its core business and plays a prominent role in the development of the whole group. Coal production of Yima Coal Group in Henan concentrates on two mining areas of western Yiam mining area and eastern Luoyang mining area. Western Yima mining area has 13 c...学位：工商管理硕士院系专业：管理学院_工商管理硕士(高级管理人员工商管理硕士)学号：X201215618

2010_2016年国际极地研究综合评价分析

极地在气候系统、全球资源和战略中具有重要意义，并且随着人类对它的开发，极地研究也日益成为地球与环境科学领域的核心和热点议题。基于Web of Science 数据库收录的2010 － 2016 年SCI文章，利用文献计量方法，结合国际政策和战略，分析了2010 － 2016 年极地研究的发展格局和变化趋势。结果表明: ( 1) 近年来国际极地研究论文年发文量总体呈持续增长态势，年均增幅为3． 6%。( 2)发达国家及高纬度国家是极地领域的主要研究力量，美国占据绝对优势。( 3) 在SCI 发表的国际极地研究论文来源期刊共计915 种，来自57 个国家，美国期刊占1 /3。( 4) 结合欧盟极地研究优先领域和文献计量方法得出，极地研究未来新的发展方向侧重于人文及社会因素，重点提倡人类对极地的影响以及新技术应用。建议我国科研人员密切关注国际极地研究的发展态势和进展，鼓励海洋学、气象学、地质学、环境生态学、生物学、社会学和政治学等领域专家有计划地开展极地研究，为我国赢取极地研究国际发言权和参与度。</p

Bio-Inspired Aggregation Control of Carbon Nanotubes for Ultra-Strong Composites

High performance nanocomposites require well dispersion and high alignment of the nanometer-sized components, at a high mass or volume fraction as well. However, the road towards such composite structure is severely hindered due to the easy aggregation of these nanometer-sized components. Here we demonstrate a big step to approach the ideal composite structure for carbon nanotube (CNT) where all the CNTs were highly packed, aligned, and unaggregated, with the impregnated polymers acting as interfacial adhesions and mortars to build up the composite structure. The strategy was based on a bio-inspired aggregation control to limit the CNT aggregation to be sub 20--50 nm, a dimension determined by the CNT growth. After being stretched with full structural relaxation in a multi-step way, the CNT/polymer (bismaleimide) composite yielded super-high tensile strengths up to 6.27--6.94 GPa, more than 100% higher than those of carbon fiber/epoxy composites, and toughnesses up to 117--192 MPa. We anticipate that the present study can be generalized for developing multifunctional and smart nanocomposites where all the surfaces of nanometer-sized components can take part in shear transfer of mechanical, thermal, and electrical signals

利用改良Nest-tetra-primerspecificPCR技术对两种石斑鱼的鉴别

云纹石斑鱼(EPInEPHEluS MOArA)和褐石斑鱼(E.brunEuS)为石斑鱼属内近缘种,外形相似常被混淆.本研究改良建立了nEST-TETrA-PrIMEr SPECIfIC PCr方法,获得了云纹石斑鱼和褐石斑鱼线粒体dnAnd2基因内的3个特异性条带,分别为内参序列nC1(394bP)、特异性条带nd2-M(268bP)和nd2-b(122bP),以及核基因组中核糖体dnAITS1区的5个特异性条带,分别为内参序列nC2(588bP)、nC3(563bP),特异性条带rdnA-M(426bP)、ITS1-M(488bP)和ITS1-b(304bP).研究结果不仅为两种石斑鱼的鉴别提供了稳定、可靠、快捷的特异性分子标记,而且也为鱼类近缘种的dnA鉴别提供了新的途径.国家自然科学基金(批准号:40576064);国家“八六三”计划(项目编号:2006AA10A414)资助项

硝基芳烃类污染物对水生态系统的毒理研究述评

硝基芳烃主要通过废水、粉尘、蒸气等形式污染环境,影响人体健康.从其对水生生物(包括生产者、消费者和分解者)的形态结构、生理生化、分子机制和对水生态系统的影响等方面综述了它们的生态毒害和致毒机理

A Study on Real Estate Development Investment Model and Its Taxation Policies of ShenZhen——Collectively Owned Land Development and Urban Redevelopment

我国房地产行业经过多年的发展，房地产开发投资模式已经比较成熟，房地产开发企业主要是通过招标、拍卖或挂牌（简称招、拍、挂）方式获得土地用于房地产开发。但在深圳，由于土地资源十分有限，多数房地产开发企业无法通过招、拍、挂方式获得可开发的土地。为了应对土地资源供应不足的问题，早在2009年，深圳首次在全国提出“城市更新”概念，以市场化手段对城中村、旧工业区等存量土地进行二次开发，并允许以协议出让的方式出让土地使用权。在此背景下，传统的房地产开发投资模式在深圳已退为次要地位，取而代之的是集体土地开发（非农建设用地与征地返还用地项目投资）和城市更新项目投资，这一特点显著有别于全国其它城市。但由于开发程序...After many years of urban development, Chinese real estate developers obtain land mainly through biding, auction and listing. But Shenzhen real estate developers cannot grab land through biding, auction and listing because of severe shortage of residential land supply. To tackle this problem, Shenzhen launched the urban redevelopment project in 2009, allowing real estate developers to participate ...学位：工商管理硕士院系专业：管理学院_工商管理硕士(工商管理硕士)学号：1792014115101