200 research outputs found

    《保险法》在防范“保险道德风险”的立法缺陷与完善

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    如何更有效地防范“保险道德风险”的发生,一直是保险立法的一个难题。尽管2002年10月28日新修订的《保险法》在一定程度上能起到防范“保险道德风险”发生的作用,但仍存在诸多缺陷。本文指出我国《保险法》在防范“保险道德风险”方面的立法缺陷,并提出了如何完善立法以达到更有效地防范“保险道德风险”的建议

    The Study on the Legal Question of MBO in China

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    管理层收购作为企业并购的一种重要手段,在英美等西方发达国家已经有了长足的发展,它对于提高公司绩效、完善公司治理结构、激励管理层等具有重要作用。近几年,在我国深化企业产权改制这一大背景下,管理层收购在我国一些企业中已得到运用,并呈现西风东渐之势。然而,目前由于我国相关法律制度的不完善,管理层收购在我国还存在着许多方面的法律问题,在实际的案例中一些不规范的管理层收购导致了国有资产的严重流失。因此,本文研究管理层收购在我国究竟存在着哪些法律问题,如何来解决管理层收购的法律问题,规范管理层收购的行为,颇具理论和实践意义。本文的内容分前言、正文和结语三部分。正文部分分为三章:第一章,主要对管理层收购进行...Management Buy-outs makes great progress in western countries as an important measure of merge and acquisition. Management Buy-outs also plays an important role in the improvement of enterprise performance, and the perfection of business governance and even the promotion of managers. In recent years, Management Buy-outs was practiced by a few domestic enterprise under the ground of promoting refor...学位:法律硕士院系专业:法学院法律系_法律硕士(JM)学号:20020815

    厦门大学图书馆学科服务改革实践

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    厦门大学图书馆在现有\"由下至上\"及\"兼职分散式\"学科馆员模式下,进行了多年的实践,取得了一定的经验。在经历了一系列的学科服务的探索后,其开始面对学科服务的困境,重新思考学科服务的未来。为了促进学科服务全面发展且加快学科服务的效率,厦门大学图书馆从组织架构上进行了改革——增加学科服务带头人领导的\"由上至下\"的管理模式与协调员扁平化组织模式,以实现具有图书馆统一理念的学科服务

    善意取得制度新论

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    善意取得制度是一项古老的民法制度 ,也是民法的基本制度之一 ,意在保护交易安全、稳定经济秩序。文章从一个新的视角对善意取得制度的滥觞、理论基础、构成要件及其法律效力等方面论述了善意取得制度的基本内涵

    Sulphate reducing bacteria in core sediments from the Canada Basin and the Chukchi Sea

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    对取自北极楚科奇海及加拿大海盆的10个沉积物岩芯分别在4℃、25℃培养温度下进行硫酸盐还原菌(SRB)分析,结合首次北极科考海洋沉积物SRB的研究成果,探讨了研究区SRB的分布特点.研究结果表明,4℃与25℃温度培养的SRB含量均为0~2.4×106个.g-1(湿样);4℃时SRB的检出率与平均含量分别为45.5%和2.06×104个.g-1(湿样),25℃培养条件下分别为73.7%和4.70×104个.g-1(湿样);柱状沉积物中SRB的检出率、含量范围、平均含量都明显高于表层沉积物中SRB的相关指标;岩芯中SRB含量分布与采样点的纬度、深度有一定关系,但这种关系不如表层沉积物中SRB分布表现的那么明显;4℃培养时,各层位SRB含量的平均值范围为51~1.2×106个.g-1(湿样),25℃时为2.04×102~2.47×105个.g-1(湿样);在所研究的深度范围内,4℃时培养SRB的垂直变化较为明显,而25℃时SRB的垂直变化相对缓和;根据4℃、25℃2个不同培养温度时SRB的检出率、含量对比看,似乎25℃时更有利于某些SRB的繁衍.Ten sediment core samples(water depth from50 ~3850 m) were collected in the the Canada Basin and the Chukchi Sea during the SecondChinese National Arctic Research Expedition.Each core was sliced on board at 1 cm intervals from 0 ~10 cm and at 2 cm intervals below 10 cm assubsamples,the content of sulfate reducing bacteria(SRB) of these subsamples were analyzed by MPN(Most Probable Number) methed.The contents ofSRB cultivated at both 4℃ and 25℃ ranged from0 to 2.4×106cel.lg-1wet sample and the average SRB cultivated at4℃ and 25℃ were 2.06×104cell.g-1wet sample,and 4.70×104cell.g-1wet sample,respectively.Unlike surface sediments in the study area,the latter shows a tendency to increasefrom low latitude to high latitude,or from shallow water to deep basin.From surface to depths,the content of SRB in sediment changes irregularly,depending on the sedimentary environment.The average contents of SRB cultured at4℃ and 25℃ in the same layer ranged from51 to1.2×106cel.lg-1wet samples and 2.04×102to 2.47×105cel.lg-1wet samples.Comparing the contents,content range,and occurrence rate of SRB cultivated at4℃ and25℃,it seems that 25℃ is more suitable than 4℃for survival and propagation of some SRB.国家自然科学基金(No.40576060,40376017,40176017)~

    Isolation and phylogenetic analysis of cultivable manganese bacteria in sediments from the Arctic ocean

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    对中国第二次北极科学考察采集的北极海洋沉积物中的锰细菌进行了筛选、分离和系统发育分析。根据其在筛选平板上菌落的形态学特征,分别从站位P11和S11采集的沉积物中分离到了21株和19株锰细菌。系统发育分析表明,两个站位的锰细菌群落组成有着明显的差别。站位P11分离的可培养锰细菌主要由细菌域(Bacteria)中变形杆菌门的γ-变形杆菌纲(γ-Proteobacteria)和放线菌纲(Actinobacteria)组成,二者分别占86%和14%;γ-变形杆菌纲主要包括嗜冷杆菌属(Psychrobacter)、希瓦氏菌属(Shewanella)、假交替单胞菌属(Pseudoalteromonas)、不动杆菌属(Acinetobacter)、海杆菌属(Marinobacter),其中以嗜冷杆菌属为主,其比例可达67%。从站位S11分离到的可培养锰细菌主要包括细菌域中变形杆菌门的α-变形杆菌纲(α-Proteobacteria)和γ-变形杆菌纲以及拟杆菌门(Bacteroides)中的黄杆菌纲(Flavobacteria);γ-变形杆菌纲主要包括希瓦氏菌属、海单胞菌属(Marinomonas)和交替单胞菌属(Alteromonas),α-变形杆菌纲主要为鞘氨醇单胞菌属(Sphingomonas)。实验菌株均对Mn2+有着较强的抗性,其中以菌株Marinomonas sp.S11-S-4耐受性最高。The biogeochemical cycling of manganese is recognized as an important environmental process because manganese is not only an essential nutrient for all organisms but also its oxidation and reduction are intimately coupled with the cycling of other essential elements.Studies have demonstrated that Mn2+-oxidizing bacteria are abundant and distributed widely.A diverse array of bacteria,fungi,and microalgae have been shown to have the ability to catalyze oxidation or reduction of manganese.The oxidation of soluble Mn2+ to insoluble Mn3+/Mn4+ oxides and oxy-hydroxides is an environmentally important process because the solid-phase products oxidize a variety of organic and inorganic compounds,scavenge many metals,and serve as electron acceptors for anaerobic respiration.In most environments,Mn2+ oxidation is believed to be bact erially mediated.Over the years,Mn2+-oxidizing bacteria have been isolated from wide variety of environments,including marine and freshwaters,soils,sediments,water pipes,Mn nodules,and hydrothermal vents.Phylogenetically,Mn2+-oxidizing bacteria appear to be quite diverse,with all isolates analyzed to date falling within either the low G+C gram-positive bacteria,the Actinobacteria,or the α,β,and γ subgroups of the Proteobacteria branch of the domain Bacteria.In order to investigate the biodiversity of manganese bacteria in polar region,isolation,molecular identification and phylogenetic analysis of manganese bacteria were carried out in the sediments which were collected from Arctic ocean during 2nd Chinese Arctic Scientific Expedition.Twenty one and nineteen species of cultivable strain were isolated from the sediments of both station P11 and S11 respectively according to their distinct morphology on screening plate of manganese medium.Molecular identification and phylogenetic analysis showed that the cultivable manganese bacteria from station P11 were basically composed of γ subgroup of the Proteobacteria branch of the domain Bacteria(γ-Proteobacteria)and Actinobacteria,which accounted for 86% and 14% respectively.The γ-Proteobacteria mainly included Psychrobacter,Shewanella,Acinetobacter and Marinobacter,of which Psychrobacter was the major genus,it accounted for 67% of γ-Proteobacteria in sediments of station P11.The cultivable manganese bacteria from station S11 included α-proteobacteria,γ-Proteobacteria and Flavobacteria of Bacteroides.γ-Proteobacteria included Shewanella,Marinomonas and Alteromonas.The majority of α-Proteobacteria was Sphingomonas.The phylogenetic analysis indicated that bacteria from the sediments of station P11 and S11 had different cultivable manganese bacteria flora.All tested strains had higher resistance to Mn2+,of which Marinomonas sp.S11-S-4 had highest resistance.国家自然科学基金资助项目(40576060)~

    The development of online detecting system of five-axis CNC grinding machine for indexable insert

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    五轴可转位刀片磨床具有高速、高精的特点,为了使所磨的刀片符合精度要求,需要针对刀片的尺寸开发一种在线检测系统。本文所介绍的在线检测系统主要由两方面构成:一是在磨床数控系统中将测头伸缩时发出的电压信号转换为测量值;二是建立刀片尺寸的加工模型。在线检测系统通过调用系统的测量宏程序,获取刀片测量值,将此测量值输入到加工模型中,得到所加工刀片的指导尺寸。通过实验,得到了刀片的指导尺寸和测量时间,验证了此在线检测系统是可行并且可靠的。The five-axis CNC grinder of indexable insert is characterized by high-speed and high-precision.,in order to meet the accuracy requirements of grinding blades, needed an online detection system developed for the size of the blade.The online detection system described in this article consists of two aspects: First, the voltage signal that when the probe telescopics will be converted to the measured value; Second, establishing the process model of the blade size.The online detection system will get the blade measurements by calling the measure macro, then the measured value input into the process model, obtaining the guidance blade size.Through the experiment, verifying this online detection system is feasible and reliable by the obtained guidance blade size and the measuring time.国家“高档数控机床与基础制造装备”科技重大专项资助(2010ZX04001-162

    青年用疲労自覚症状尺度の作成

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