646 research outputs found

    Synthesis and Characterization of Water-Soluble Osmapentalene-PEG

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    光治疗指的是光治疗试剂在特定波长光的诱导下,能够杀死肿瘤组织的新型癌症治疗手段。相比于传统的癌症治疗手段,光治疗具有微创性、选择性破坏肿瘤组织、对正常组织侵害性小等优点。 2013年,本课题组报道了一类全新金属杂环化合物——锇杂戊搭炔/烯。锇杂戊搭烯化合物在近红外有吸收、反应性丰富、结构易被修饰,有望应用于生物的光治疗。目前,关于金属杂环化合物在光治疗中的研究还处于摸索阶段,其水溶性差、无靶向性等问题都亟待解决。因此,研究金属杂戊搭烯在光治疗中的应用,具有开拓性的意义。 本文致力于开发水溶性基于锇杂戊搭烯的新型光治疗试剂。研究内容主要分为以下两方面:(1)制备水溶性基于锇杂戊搭烯的光治疗材...Phototherapy refers to novel cancer treatments inducing agent in the treatment of light of a specific wavelength, which is possible to kill the tumor tissue. Compared to traditional cancer treatments, phototherapy is minimally invasive, and selective destruction of tumor tissue without causing much damages to normal tissues. In 2013, our group reported a series of new metallacycles, i.e., osmape...学位:理学硕士院系专业:化学化工学院_高分子化学与物理学号:2052013115165

    Variations in surface export fluxes of POC during ice-melting in the Arctic Ocean

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    运用210Po/210Pb不平衡法和234Th/238U不平衡法分别在中国第四次和第五次北极科学考察期间估算了楚科奇海和加拿大海盆的POC输出通量及其随时间的变化情况,同时评估了过去20年来北冰洋的POC输出通量的变化情况。研究结果显示,在第四次北极科学考察期间(2010年7~9月),研究区域真光层中颗粒态210Po的停留时间在-14.92a~1.52a,高于溶解态210Po的停留时间-7.17a~-0.70a,所有测站中溶解态210Po存在明显的过剩,210Po/210Pb的平均值为1.91±0.20。采用两种计算方法(E法和B法)估算了真光层POC输出通量,结果显示从南到北呈现出下降趋势。...Export fluxes of particulate organic carbon (POC) were derived from 210Po/210Pb disequilibrium method and 234Th/238U disequilibrium method during the 4Th and 5Th Chinese National Arctic Research Expedition (CHINARE-4, July 1~September 28, 2010, and CHINARE-5 ), respectively. In 2010,the average residence time of particulate 210Po were in the range of -14.92 a~1.52 a, which is higher than that of ...学位:理学博士院系专业:海洋与地球学院_海洋化学学号:2242009015325

    Analysis on the Public Notification System of Chattel Mortgage

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    本文着眼于我国动产抵押权公示制度的立法现状及缺陷,借鉴市场经济发达国家和地区的立法经验及我国司法实践,针对动产抵押权公示方式立法选择、公示的对抗力及公信力、登记机关完善等问题展开探讨,比较全面和清晰地认识动产抵押权公示制度,提出了完善我国动产抵押权公示立法的若干建设性意见。本文包括前言、正文和结语,其中正文共有五章:第一章动产抵押权公示制度概述。本章主要分析我国动产抵押权公示制度的立法现状,借鉴大陆法主要国家和地区及英美两国关于动产担保物权公示制度的立法经验,主张对我国动产抵押权公示制度进行必要的修改完善。第二章动产抵押权公示方式的立法选择。本章通过比较动产抵押权公示的五种立法模式各自利弊,认...With a view to the legislative development and limitation analysis of chattel mortgage public notification system, taking the use of the legislative instances from the developed countries & areas and the judicial practices of China for references, discussing several issues concerning chattel mortgage such as legislative choices of the public notification method of the mortgage right, rivalry e...学位:法律硕士院系专业:法学院法律系_法律硕士(JM)学号:X20020803

    The remote construction machinery monitoring system based on GPS and GPRS

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    随着经济的快速发展,大量的工程机械设备被使用在基础设施建设中,远程监测系统做为一种设备管理的全新方法,在国内外迅速发展起来。远程监测系统可以实时、准确的掌握工程机械的地理位置、运行状况,随时对设备进行追踪和管理,降低设备故障发生率和防范故障扩大化,确保工程机械处于健康的工作状态,对它的研究具有很大的经济效益和社会效益。 论文首先介绍了国内外工程机械远程监测系统的现状和发展,然后分析了4种定位系统(GPS定位系统、伽利略定位系统、北斗定位系统和基于移动通讯网络的定位系统)的优劣,详细阐述了本项目中所使用的GPS定位系统和GPRS数据通讯系统的相关技术,接下来根据监测终端的功能要求,设计出了远程...Lots of construction machineries and equipments were used in the construction of infrastructure with the rapid economic developing ,as the new approach for equipment management, remote monitoring system can make the supervisor find out the location, operational status, trace and manage the equipments anytime and anywhere to reduce the failure, the research has great economic and social benefits. ...学位:工程硕士院系专业:信息科学与技术学院_电子与通信工程学号:X201022202

    Model Predictive Control Remote Monitor method and Its Implementation on J2EE Platform

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    模型预测控制(ModelPredictiveControl,简称MPC控制)亦称预测控制,是20世纪70年代在工业过程控制领域中出现的一类新型计算机控制算法。现在对于模型预测控制的相关研究已经相当深入,然而如何监测模型预测控制过程,特别如何能够对模型预测控制进行远程监测,还处于初始阶段。 随着计算机网络技术和通信技术的发展,特别是Internet技术的发展,信息高速公路的开通,推动了远程监测技术的产生与广泛应用。远程监测可以同时将多个对象的监测数据集中到远程监测中心进行统一管理、分析等。 本文首先分析了模型预测控制的监测现状,对其提出了远程监测的方法,给出了远程监测的具体方案,并基于J2E...Model Predictive Control, also known as predictive control, is a model based advanced control technology. The research of model predictive control is already very in-depth, but how to monitor model predictive control process, especially the remote monitoring, is still in the initial stage. With computer networks and communication technology development, especially in the development of Internet t...学位:工学硕士院系专业:信息科学与技术学院自动化系_系统工程学号:2232005130249

    傣族祭寨神仪式空间的排他性

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    傣族祭寨神仪式期间,傣族人物理的现实时空进入宗教的神圣时空,使村寨形成一个封闭的神圣空间。相对于村寨空间,寨神居住的寨神林空间在宗教体验上则更具神圣性。祭寨神仪式空间把佛和寨外排除在外,寨神林把寨内的女性排除在外。村寨内外、寨神林内外的空间安排,反映了傣族祭寨神仪式空间的排他性,这种排他性充分体现了集体表象的功能

    The Morphology, Network and Ultrastructure Changes of the Interstitial Cells of Cajal in the Bladder of Guinea Pig with Diabetic Cystopathy

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    目的:建立糖尿病豚鼠膀胱功能失代偿模型,观察糖尿病膀胱病(DCP)豚鼠膀胱Cajal样间质细胞(ICCs)形态、网络结构和超微结构变化,探讨ICCs在DCP发病机制中的作用。 方法:50只英国种短毛雌性豚鼠,随机选择42只作为实验组,8只作为对照组。实验组单次腹腔注射链脲佐菌素(STZ),对照组注射相应剂量的枸橼酸缓冲液。4周后,两组豚鼠称重及测定餐后2小时血糖。符合糖尿病的豚鼠及对照组豚鼠,继续饲养5周和8周,尿动力学检测残余尿、排尿期最大逼尿肌压、膀胱容量及顺应性,确定膀胱功能代偿及失代偿(即DCP)糖尿病豚鼠,利用免疫组织化学荧光染色、激光共聚焦显微镜、透射电镜技术检测膀胱ICCs形态...Objective: Guinea pigs were used to establish a diabetic cystopathy(DCP) model, We observe the morphology, network and ultrastructure changes of the interstitial cells of Cajal (ICCs) in the bladders of guinea pigs with DCP, to discuss the functions of the ICCs in the the pathogenesis of the DCP. Methods: 50 short hair Britain female guinea pigs were divided into two groups randomly, 42 as the ex...学位:医学硕士院系专业:医学院_外科学学号:2452010115329

    “Common Market”is the Best Mechanism of the Agricultural Cooperation between Taiwan and Mainland——The Foreground of the Agricultural Cooperation between Mainland and Taiwan

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    海峡两岸的经济合作已发展至不可逆转阶段,而农业由于其特殊性,一直是两岸经济合作中备受关注的领域。系统地总结并反思海峡两岸农业合作的历程,对推动两岸农业交流与合作有现实意义,并对促进相互了解、相互信任、相互依赖基础上的祖国和平统一有积极意义。2001年底中国大陆与台湾先后加入了世界贸易组织,由此两岸农业都将面对国际农业的激烈竞争。现今两岸农业发展处于不同的层次,农业资源禀赋差异很大,大陆拥有丰富农业资源和相对低廉农业劳动力,而台湾农业在资金、技术等方面都比大陆略胜一筹,这使海峡两岸农业具备广阔的合作空间。两岸农业交流与合作,不论是在广度上亦或深度上都已取得很大的发展,农业合作带给双方的经济实效令...It is impossible for the economic cooperation between Mainland China and Taiwan to reverse. For agriculture is an industry attaining many concerns, it is significant to make a systematic study on the course of the agricultural cooperation between Mainland China and Taiwan. At the end of 2001, Mainland China and Taiwan entered WTO successively, which makes bilateral agriculture confront severe i...学位:经济学硕士院系专业:经济学院国际贸易系_世界经济学号:20030903

    Audience’s Orienation And The Brand Management Of Focus Media

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    随着传播技术的不断发展,人们接触媒介的渠道和方式以及选择媒介的心理趋向都微妙地发生着变化。同时,在市场经济的推进下,媒介资源越来越多,传媒信息和受众需求之间存在着供求失衡、资源过剩、影响力下降等问题,原先面对社会公众的大众传播已开始出现越来越多的分众传播趋势。随之而起的分众化理论也在我国兴起,不论学术界还是实践界都必须面对分众化发展的现实。在这种大背景下,媒介如何应对新趋势,如何打造分众化媒介进行品牌经营以在激烈的市场竞争中赢取一席之地是一个关乎媒介生存的严峻问题。本文分析了分众化背景下的传媒局势并抓住分众背景下传媒需要考虑的主要因素——受众作为切入点,以具有独特鲜明分众化特征的厦门卫视为个案...With the development of communication, the audience’s means to touch media and mentality in media choice have been changed. At the same time, with the advance of market economy, media resource becomes abundant. Media message and the audience’s requirement exists some questions, such as the unbalance between supply and demand, resource over plus, force decline and so on. Public communication has al...学位:文学硕士院系专业:人文学院新闻传播系_传播学学号:20033203
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