Research on residual stress measurement and vibration stress relief of sheet metal

小孔法的塑性效应会给高残余应力测量带来误差，为了解决这个问题，论文中对ASTME837-13a标准中的校准系数的塑性修正进行了研究。同时，组建了用于金属薄板件振动时效的电磁激振系统，研究了振动时效消除金属薄板件的残余应力。论文的研究内容围绕以下几个方面展开。 首先，研究了小孔法测量铝合金构件高残余应力的塑性效应修正方法。基于形状改变比能密度理论，对ASTME837-13a标准中的校准系数进行塑性修正；结合双线性弹塑性理论，采用ANSYS软件进行有限元仿真标定；使用电子万能试验机进行拉伸加载实验验证，修正前和修正后的高残余应力测量误差的平均值范围是0~80%和0~12%；使用ANSYS进行二轴...Plastic effect would lead to measurement error when high residual stress was measured using hole-drilling method (HDM). To solve the problem, the correction of calibration coefficients in the ASTM E837-13a standard was studied in this paper. At the same time, the system of electromagnetic vibration exciter for vibration stress relief (VSR) of metal sheet was formed and the VSR of sheet metal was s...学位：工程硕士院系专业：航空航天学院_工程硕士(机械工程)学号：1992014115291

The China "conglomerate" phenomenon and its effect on the capital market

中国证券市场“系”是一个泛的概念，它的核心不是买卖产品和服务，而是以资本运作方式对产业进行整合的模式。“系”现象产生后，专家学者们持有两种不同的观点：持负面观点的人，认为“系”是利用上市公司的控制权剥夺小股东权益，焦点集中在是否圈钱，是否从事资本掠夺，是否操纵二级市场；持正面观点的人，认为民营企业透过“系”实现了大规模的产业整合，提高了经济效益。本文以托普系及德隆系两案例，分析其发展轨迹、特点、资本运作手段到最后结局，然后以案例评述，阐述“系”现象对资本市场之负面影响。最后笔者认为要将中国证券市场“造系”运动导入正轨，资本运作需要制度层面设置政策来约束，通过资本运作和资本市场相结合，将金融手段...The financial operation or establishment of “business conglomerates” in China often poses dubious questions for investors in the domestic stock market. Very often strings of dysfunctional subsidiaries or intricately affiliated companies in the form “business groups” perform no substantial business activities other than acting merely as financial vehicles for one another. Spin-offs, shell-structu...学位：工商管理硕士院系专业：管理学院工商管理教育中心_工商管理硕士(MBA)学号：X20021505

A Comparison between China’s Criminal Legislation on Crime of Bribery and the “United Nations’Convention of Anti-corruption”

中国贿赂犯罪刑事立法与《联合国反腐败公约》在行贿方式、行贿罪的目的要件等的规定上具有契合性,在行贿人的刑事责任、贿赂的内容、外国公职人员或者国际公共组织官员贿赂犯罪的规定等问题上具有差异性。The criminal legislation on the crime of bribery in China is accordance with the “United Nations'(UN's) convention of anti-corruption"when concerning the forms, the elements and the intention of bribery. But as for the criminal responsibilities, the subject matter, the regulations on it for foreign public officials or international public organizations' officials, China's criminal legislation on bribery is different from UN's convention

Studies on Large-scale Distribution of Polychaeta in Taiwan Strait and its Adjacent Waters

底栖多毛类是大型底栖动物的重要组成部分，种类多，分布广，它们引发的生物扰动有利于海洋沉积物改造。多毛类在海洋底层生态系统物质循环和能量流动中发挥重要作用，这不仅仅因为它们经常是数量占优势的大型底栖生物类别，还在于它们表现出摄食模式的多样性。多毛类直接与栖息环境中的水体和沉积物相接触，能反映当地水体和沉积物环境状况，许多种类都可以作为海洋沉积环境质量评价的指示生物，因此多毛类广泛应用于海岸环境监测。 台湾海峡历史上曾进行过几次海洋综合调查，获得许多现场数据，但近些年来类似研究不多，很有必要系统研究该海域的大型底栖生物尤其是多毛类的最新分布情况，以加深对该海域生态系统变化的了解。多毛类是许多经济...As an important component of macrobenthos, benthic polychaetes are species-richness and widely distributed in the ocean. Bioturbation induced by polychaetes may have great impacts on sediment reworking. Also, they play vital important role in matter cycle and energy flow of benthic ecosystem, and this is not only because they are often the numerically dominant macrobenthic taxon, but also because ...学位：理学硕士院系专业：海洋与环境学院海洋学系_海洋生物学学号：20042703

Research on Real Estate’s being able to be the Criminal

在本文中，作者在前人研究的基础上，提出：夺取罪是一种以非法占有为目的，使用和平或者非和平手段改变财物占有关系的财产犯罪。在中国刑法的视野中，夺取罪包括：盗窃罪、抢劫罪、抢夺罪、诈骗罪、敲诈勒索罪、（携带凶器抢夺型）抢劫罪、转化型抢劫罪和聚众哄抢罪。此类夺取罪的犯罪对象不仅可以是动产，还可以是不动产。本文分为五章。在第一章中，作者简要地介绍有关财产犯罪分类、夺取罪的定义和不动产的定义。在第二章中，作者概述了有关不动产夺取罪的立法例和学说。在第三章中，作者重点阐述了不动产可以成为盗窃罪的犯罪对象。提出：不能以“法无明文规定”否定（不动产）盗窃罪的成立，不动产变更登记与否和不动产能否被盗窃没有必然联...Based on the ancestors’ research, the author proposes that the offense of seizing property is one of the offenses against property with illegal possession as their purposes and changing property’s possession relationship as their objective characteristic by using the peaceful or non-peaceful methods. In the background of Chinese criminal law, theft, robbery, crime of forcible seizure, deception, b...学位：法学硕士院系专业：法学院法律系_刑法学学号：20030801

The Theory and the Improvement Design of CH_4 Detection Instrument Based on Light Interference Technique

介绍光干涉式甲烷检测技术的基本测量原理,及在光电检测环节对系统所作的改进设计。这种改进体现在采用CCD或CMOS光电传感器,将视频信号输入嵌入式系统,进行数字图像处理,以合理的软件设计提高检测的速度与精度。In this paper,the methane detection technique based on laser light interference is discussed.At the same time,the improvement design in signal capturing is also focused on.The improvement design is that using CCD,CMOS photoelectricity sensor to get video signal,then the signal is send into embedded system.Digital image processing can give the concentration of methane,and an excellent program can improve the speed and precision of detection

数罪并罚成立范围之立法检讨

我国《刑法》规定数罪并罚的成立范围过于宽泛,从而导致数罪并罚的规定与累犯的规定互相矛盾,造成了罪刑不相适应的局面,还对并无错误的原判的既判力产生冲击。关于数罪并罚的范围,我国应当采裁判确定主义。相应地,累犯的成立也应当采裁判确定主义。犯罪人在刑罚执行期间再犯新罪的,应当以累犯从重处罚,并在此基础上将其与前罪的余刑合并执行,同时对最终执行的刑罚进行适当的限制

三维技术及其在发型设计领域的应用

目前三维技术在生产生活中有着广泛的应用，三维技术以其强烈的真实感和强大的交互性给用户带来更好的体验。将三维技术应用到发型设计领域是一个具有独创性的设想，详细介绍了三维发型设计系统的实现过程，通过在系统中运用OpenGL技术并与其它建模技术灵活地结合起来，使该系统具有强大的交互性和三维空间立体设计功能，很好地体现了以人为本的设计理念。三维发 型设计系统的成功将对发型设计领域带来一次质的提升，市场前景也十分广阔：福建省科技厅2003 年重点资助项目(2003H057)；国家九八 五二期信息创新平台项目

Influence of Intercalated Li on Electronic Structures and Optical Properties of V_2O_5

采用第一性原理局域密度近似法计算了V2O5的电子态密度和能带结构以及Li嵌入后对其电子结构和光学性质的影响。计算结果表明,V2O5是间接带隙半导体,Li的嵌入并没有改变其电子的跃迁方式。但Li的嵌入使得V2O5导带能量下移,禁带宽度减小,导带中原有的劈裂被分裂的能级填满;同时致使价带出现展宽。电子态密度计算结果表明Li的嵌入对临近的O和V的电子结构有较大的影响。Li2s电子的注入提高了V2O5的费米能级并导致其进入导带。由于价带中的电子只能跃迁到费米能级以上的导带空能级,这致使体系实际的光学带隙增大。同时随着Li注入量的进一步增加,价带的展宽更为明显,费米能级亦呈升高的趋势,使得光学带隙随着Li注入量的增加而增大。The density of states and band structures of α-V2O5 and Li-intercalated V2O5 (LixV2O5, x= 0.5 and 1.0) have been studied using a first-principles calculation based on density function theory with the local density approximation. The results indicate that V2O5 is an indirect-gap semiconductor; the intercalation of Li will not change its way of electron transition. While, the intercalation of Li lowers the energy of conduction band, and then narrows the band gap. At the same time, due to the intercalation of Li, the split-off in the conduction band of V2O5 disappears because of the split of conduction band. The Fermi level of LixV2O5 increases dramatically due to the electron transfer from Li 2s to the V2O5 host, which is probably the main reason why the optical band-gap augments with the Li intercalation.国家重点基础研究发展规划(001CB610505);; 国家自然科学基金(60376015,60336020);; 福建省青年人才创新基金(2005J005)资助项目~

In situ probing electrified interfacial water structures at atomically flat surfaces using Raman spectroscopy

自然界中水无处不在，人们对水分子的研究已经长达一个多世纪。特别是在材料表面，从原子结构层面理解界面水所发生的各种物理和化学过程，将有利于指导能源和环境领域中开发更好的技术和器件。文献中采用振动光谱已经推知了水在金属界面的不同构型，如四配位水、三配位水、表面特性吸附水、自由水等。然而，仍然缺乏这些界面水在不同电位下清晰的构型图像。李剑锋教授课题组采用不受体相水干扰的表面增强拉曼光谱，首次在金（111）和（100）单晶电极表面上获得了界面水的拉曼信号，并且在析氢反应过程中原位观测到了界面水的两种构型转变。发现界面水随着电位的负移，由“平行”结构向“单端氢朝下”，再向“双端氢朝下”变化。程俊教授课题组采用从头算分子动力学理论方法，模拟出不同电位下，在双电层中界面水的三种构型以及相应的氢键数目，与实验数据很好地吻合，进一步揭示了双电层的原子级结构。该研究首次在实验和理论层面，将界面水的构型转变以及氢键断裂与精确的电极电势标尺进行关联，对探知双电层的三维结构具有指导性意义。 该研究工作通过厦门大学校内合作完成，化学化工学院李剑锋教授和程俊教授为通讯作者，田中群教授提供了重要指导。李超禹博士（现美国麻省理工学院博士后）和乐家波博士（现能源材料化学协同创新中心博士后）为共同第一作者，王耀辉博士生在实验上提供了帮助，物理系的陈舒博士和杨志林教授为本工作开展了电磁场增强计算【Abstract】Molecular structures of solid/liquid interfaces are of fundamental interest, and play significantly in the efficiencies of energy storage and conversion. To elucidate the structures of electric double layers at electrochemical interfaces under bias potentials, we have collaborated in situ Raman spectroscopy and ab initio molecular dynamics, and for the first time distinguished two structural transitions of interfacial water at electrified Au(111) and Au(100) single crystal electrode surfaces. Towards negative potentials, the interfacial water molecules evolve from structurally “parallel” to “one-H-down”, and further to “two-H-down”.Concurrently, the number of hydrogen bonds among the interfacial water shows an overall decrease along with the negative shift of the potential, and undergoes two transitions as well. Our findings shed light on fundamental understanding of electric double layers and electrochemical processes at the interfaces.National Natural Science Foundation of China (Grants No. 21373166, 21522508, 21775127, 21521004, 21321062 and 21621091). 该工作得到国家自然科学基金委的大力资助，也得到了固体表面物理化学国家重点实验室、谱学分析与仪器教育部重点实验室、能源材料化学协同创新中心的支持