The Conflict of Interest and the Risk of Control Rights in the Dispersed Ownership Structure— Case Study based on Vanke

2016年我国资本市场上市公司收购事件频繁发生，陷入股权争夺的公司数量大幅增加。以保险资金为代表的金融资本大量增持优质上市公司股份，意图掌控公司控制权，遭到了部分上市公司管理层和大股东的抵制。万科公司股权争夺成为这些收购案件中最引人注目的例子，给学术界带来许多有价值的研究课题。其中，分散式股权结构的控制权风险成为相关研究的重点。对万科股权之争案例的研究，有助于发现上市公司在股权结构和控制权风险方面存在的问题，并提出有效的改进建议。 本文基于股权结构和控制权风险相关理论，对万科股权之争进行了全面回顾，介绍了万科公司的地位和优势，并分析了股权之争中各方的利益诉求，进而得出了万科股权之争中万科管理...During 2016, there were many listed companies been acquired during our country, the quantities of hostile takeover substantially growth. With insurance funds as the representative of a large number of financial capital holdings of high-quality listed companies, the intention to control the control of the company, has been part of the company's management and major shareholders of listed companies ...学位：会计硕士院系专业：管理学院_会计硕士学号：X200915700

TC17钛合金在盐酸溶液中的腐蚀特性

采用浸泡腐蚀方法研究了TC17钛合金在50℃下3.5%盐酸溶液中的腐蚀形貌和腐蚀速率,并用电化学腐蚀方法研究了TC17钛合金在室温下不同浓度盐酸溶液中的极化曲线变化及腐蚀速率。研究表明:TC17钛合金在盐酸溶液中耐腐蚀性能降低,试件表面形貌出现明显变化。在50℃下3.5%盐酸溶液中腐蚀深度随时间(0～480 h)呈线性变化,腐蚀速率随时间呈非线性变化;在室温下5.0%和10.0%的盐酸溶液中,TC17钛合金的极化曲线出现了钝化过渡区,且钝化电位与盐酸浓度相关。国家自然科学基金(51475396);;航空发动机高空模拟技术重点实验室基金(SYS2015006

不同腐蚀条件下TC17钛合金腐蚀行为研究

该文研究了不同腐蚀环境下，TC17钛合金的腐蚀行为，对腐蚀前后实验件，运用金相显微镜和超景深三维显微系统对腐蚀表面进行了观察。结果表明：钛合金在3.5%NaCl溶液和H2O2复合溶液中具有较高的耐蚀性，在HNO3复合溶液和KClO3复合溶液中腐蚀效果明显，试样表面出现腐蚀坑。随着腐蚀时间的增长，腐蚀坑密度、尺寸、深度也随之变大。本研究受国家自然科学基金(No.51475396),国家重点基础研究发展计划(973计划)(No.2013CB733004)资助

Development of the facility for model scramjet testing

A hypersonic propulsion test facility has been constructed in IMCAS (Institute of Mechanics, Chinese Academy of Sciences) in order to provide a high enthalpy hypersonic flow for a model scramjet testing. The vitiated air is produced by a hydrogen/air and oxygen replenishment combustion heater with flow rate of 3.5kg/s, total pressure of 5MPa and total temperature of 2000K in maximum, and accelerated up to Mach 5.6 by a two-dimensional nozzle. Test chamber of the facility is evacuated by a one-stage central air ejector. The preliminary facility performance tests showed that the vitiated air heater could provide the high enthalpy flow as expected. A copper model scramjet without cooling is ready for testing. © 2001 The American Institute of Aeronautics and Astronautics Inc. All rights reserved

Determination of Dithiocarbamates in Foodstuffs by LC-MS/MS

通过优化质谱、液相色谱和萃取缓冲液等条件,建立了一种简单、快速、灵敏测定食品中二硫代氨基甲酸酯的方法。在优化条件下,代森锌(EbdC)、丙森锌(PbdC)的线性范围为2~100μg/l,相关系数均不小于0.997。在花椰菜、萝卜和豌豆中EbdC和PbdC的检出限(S/n>3)为2μg/kg;萝卜和豌豆中Eb-dC和PbdC的定量下限(S/n>10)为10μg/kg,而花椰菜中EbdC和PbdC的定量下限(S/n>10)为15μg/kg。在花椰菜、萝卜和豌豆基质中加标5~100μg/kg的EbdC和PbdC时,测定加标回收率为83%~96%,相对标准偏差为4.4%~10.5%,方法可满足定量分析的要求。A simple,fast and sensitive method was developed for the determination of dithiocarbamates,including tiezene(EBDC) and pestanal(PBDC),by optimizing the parameters of LC-MS/MS and extraction buffer.Under the optimized conditions,the calibration curves of EBDC and PBDC were linear in the range of 2-100 μg/L with correlation coefficients not less than 0.997.The limits of detection(LODs,S/N>3) of EBDC and PBDC were 2 μg/kg for cauliflower,turnip and pea,and the limits of quantitation(LOQs,S/N>10) of EBDC and PBDC were 10 μg/kg for turnip and pea,and 15 μg/kg for cauliflower.The recoveries in cauliflower,turnip and pea samples at spiked concentration levels of 5-100 μg/kg ranged from 83% to 96% with relative standard deviations(RSDs) of 4.4%-10.5%.The method could meet the requirement for the analysis of dithiocarbamates in foodstuffs.厦门市科技计划项目(3502Z20092009;3502Z20102013); 国家质检总局科技计划项目(2010IK162;2010IK192

第十八届美国理论与应用力学大会总结

1会议概况2018年6月5—9日,第18届美国理论与应用力学大会(18th U.S. National Congress of Theoretical and Applied Mechanics, USNCTAM2018)在美国芝加哥召开.本次大会由美国力学国家委员会和中国力学学会联合主办,旨在探讨和交流近四年世界范围内在理论和应用力学领域的基础研究、创新技术的最新进展,吸引了来自世界各地的近千名专家学

微咸水膜下滴灌条件下绿洲棉田土壤盐分的时空变化规律试验研究

在相同灌水量条件下,以不同比例混合地下咸水(3.56 g/L)和地表淡水(0.4 g/L),采用膜下滴灌方式充分灌溉棉田,探求土壤盐分的时空变化规律。研究表明,棉花生长期间土壤盐分的变化主要受土壤水分运移和地面植被覆盖度的影响;表层土壤盐分波动大,深层土壤盐分波动小;监测层在总含盐量上比未灌水处理前低,但所有微咸水处理的都比淡水对照的大;膜下滴灌棉田盐分的变化主要受灌溉水和蒸散发的影响