Research on One Man Company Law System

一人公司的出现是社会经济发展和法律制度完善的必然产物，国外的立法和公司实践业已证明了一人公司存在的合理性。一人公司制度既有自身的优势，也有其自身的弊端。我国新《公司法》顺应时代的潮流，明确确立一人公司的法律地位，并对一人公司的设立和运行给予相应规制，既顺应经济发展趋势，又维护公司法上的均衡，特别是对公司债权人的保护。这些对于健全公司法律制度，建立和完善社会主义市场经济体制，促进社会主义市场经济的发展，具有重要意义。 但是，新《公司法》并没有解决一人公司的所有问题，其只是做了一些概括性的规定，特别是一些操作性的环节并没有给予细化规定，由此导致一人公司制度在法律实践中存在的问题不断暴露出来。 ...The emergence of one-man company is due to the development of economy and perfection of company law. The legislation and practice in foreign counties have showed the necessity of one-man company. To clarify the legal status and establish the corresponding regulations of one-man company is to meet the need of economy development and coordination of related parties’ interest, especially to provide p...学位：法律硕士院系专业：法学院法律系_法律硕士(JM)学号：1292006115063

中国超大城市空气污染和人体健康 (APHH-Beijing) 中英联合研究计划 最终报告

Chinese versio

Development of solid phase micro-extraction for the environment monitoring

为了促使我国环境监测工作更加深入和细致,得到更准确可靠的监测结果,对固相微萃取(SPME)技术在大气监测、水体监测、土壤及沉积物监测和生物监测中的应用进行了综述。根据SPME在测定污染物的浓度和存在形式,来源、分布和运移规律,以及降解、转化过程等方面的特点,提出进一步开发SPME原位测定技术和与大型仪器联用技术,将有利于其测定范围和种类的增加。同时由于SPME技术的特点适合海洋环境介质的测定,建议在海洋监测领域推广使用,使我国的海洋环境监测工作更加深入和广泛。The present paper describes a method known as the solid phase micro-extraction(SPME)to determine the organic compounds in monitoring the environment.In comparison with the existing technologies,SPME offers more advantages,such as simplicity,speed and greater sensitivity.It has been widely used for monitoring different phases,e.g.air,water,soil and sediment,as well as biological purposes.In air monitoring,the combination of SPME with GC/MS can be used to identify 75 contaminants,including 40 alkanes,1 alkene,15 alcohols,8 aldehydes,3 ketones,5 aromatics,and 3 miscellaneous ones.In quantifying determininants,SPME's sensitivity can be made far greater than that made by using traditional methods.In water monitoring,SPME could be combined with GC/MS,GC/FID,or HPLC to determine many kinds of contaminants,such as volatile phenols,halogenated hydrocarbons,etc.In some trials,SPME can be used to determine concentrations of methyl mercury,inorganic mercury,methyl tert-butyl ether(MTBE),tributyltin(TBT),and benzo[a] pyrene in aquatic environment,in which the biggest value is 77.0 ng/L,129 ng/L,194 ng/L,976.9 ng/L and 5495 ng/L,respectively.In soil and sediment trials,it is used to monitor changes of metabolite concentrations throughout the degradation processes,to monitor transition rules of organic compound,and HOCs in milliliter sediment pore water.So far,researchers have worked out the measured contaminants by using 95 % of concentration data,of which the hazard index is 0.07 for fish within the safe limits.Therefore,on the basis of obtaining concentrations of different specifications by SPME,the research groups could analyze the contaminants as to their origins,their surface appearance,and the ways of their distribution.Furthermore,they are also trying to find the changing tendency of the whole biota environment and assess the hazard to human beings.Needless to say,further applications and new improvements of SPME remain to be discussed in detail.国家自然科学面上基金项目(20677063);; 国家自然科学基金重大项目(40490264);; 广东省自然科学基金项目(5003680);; 广州市科技计划项目(2007J1-C0241);; 厦门大学近海海洋环境科学国家重点实验室开放基金项目(MEL0504);; 同济大学长江水环境教育部重点实验室开放基金项目(YRWEF07004

Fe_(25)Co_(25)Ni_(25)Cr_5P_(10)B_(10)高熵块体非晶态合金磁热效应的研究

利用Fluxing提纯处理和J-Quenching技术相结合的方法成功制备了最大尺寸为1.2 mm的Fe_(25)Co_(25)-Ni_(25)Cr_5P_(10)B_(10)高熵块体非晶态合金,并对它的磁热性能进行的表征和研究,以探讨高熵效应对非晶态合金磁热性能的影响。目前的高熵块体非晶态合金的居里温度为572 K。在外加磁场为1.5和5 T时,它的最大等温磁熵变和制冷能力的值分别为0.66 J/(kg·K),42.9 J/kg和1.88 J/kg,136.1 J/(kg·K)。与其它非晶态合金磁热性能的对比显示,高熵效应对非晶态合金磁熵变似乎并没有明显影响,但高熵非晶态合金磁熵变随温度变化曲线显示了较大的半高宽温度区间

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies