Design and Implementation of Asset Management System for a Middle School

随着我国教育部门的创新发展，极大促进了中学教育资源的利用，办学规 模条件得到扩大和改善，投入到学校的各项教学设备数量逐年增加。同时， 随着我国信息化和计算机应用技术的快速发展和普及，学校以往的传统资产 管理模式已经不能适应学校的发展，学校资产管理中存在的资产浪费、分配 不合理、管理经费混乱的问题日益凸显，因此，如今需要依据中学资产管理 的各项业务需求，开发一套实用性较强的中学资产管理系统是十分有必要的。 本文设计的资产管理系统是专门处理中学各项资产管理业务的专业化网 络管理软件。在系统开发过程中，一方面找出当前中学资产管理中存在的问 题，另一方面全面总结归纳中学资产管理的各项业...In the new period, with the innovation and development of department of education in our country, Greatly promoted the use of secondary education resources, expand and improve scale conditions, into all kinds of school teaching equipment number increases year by year. At the same time, along with the rapid development of information technology and computer application technology and the popul...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323063

渤海海峡跨海通道景观设计与旅游规划研究

渤海海峡跨海通道建设项目既是21 世纪世界级的重大交通项目,也是贯通山东半岛与辽东半岛的重大社会性基础设施项目。除大桥本身设计方面需要解决的关键技术问题外,项目整体规划设计应按照国际一流水平标准,项目的各种设施和生态修复等工程应该在工艺设计、景观设计等方面精心雕琢,打造新型隧桥文化与旅游文化;并以高水平通道规划和建设带动长岛和通道两端的旅游资源保护和旅游开发建设,打造跨越渤海海峡的海上旅游大通道和世界级旅游景群,使跨海通道建设水平和知名度提升,生态环境更趋良好,社会和环境功能更趋完善

Bubble Behavior and Heat Transfer in Quasi-Steady Pool Boiling in Microgravity

Pool boiling of degassed FC-72 on a plane plate heater has been studied experimentally in microgravity. A quasi-steady heating method is adopted, in which the heating voltage is controlled to increase exponentially with time. Compared with terrestrial experiments, bubble behaviors are very different, and have direct effect on heat transfer. Small, primary bubbles attached on the surface seem to be able to suppress the activation of the cavities in the neighborhoods, resulting in a slow increase of the wall temperature with the heat flux. For the high subcooling, the coalesced bubble has a smooth surface and a small size. It is difficult to cover the whole heater surface, resulting in a special region of gradual transitional boiling in which nucleate boiling and local dry area can co-exist. No turning point corresponding to the transition from nucleate boiling to film boiling can be observed. On the contrary, the surface oscillation of the coalesced bubble at low subcooling may cause more activated nucleate sites, and then the surface temperature may keep constant or even fall down with the increasing heat flux. Furthermore, an abrupt transition to film boiling can also be observed. It is shown that heat transfer coefficient and CHF increase with the subcooling or pressure in microgravity, as observed in normal gravity

Vibration Damping of Carbon Nanotube Assembly Materials

Vibration reduction is of great importance in various engineering applications, and a material that exhibits good vibration damping along with high strength and modulus has become more and more vital. Owing to the superior mechanical property of carbon nanotube (CNT), new types of vibration damping material can be developed. This paper presents recent advancements, including our progresses, in the development of high-damping macroscopic CNT assembly materials, such as forests, gels, films, and fibers. In these assemblies, structural deformation of CNTs, zipping and unzipping at CNT connection nodes, strengthening and welding of the nodes, and sliding between CNTs or CNT bundles are playing important roles in determining the viscoelasticity, and elasticity as well. Towards the damping enhancement, strategies for micro-structure and interface design are also discussed

Wide-Range Tunable Dynamic Property of Carbon Nanotube-Based Fibers

Carbon nanotube (CNT) fiber is formed by assembling millions of individual tubes. The assembly feature provides the fiber with rich interface structures and thus various ways of energy dissipation, as reflected by the non-zero loss tangent (>0.028--0.045) at low vibration frequencies. A fiber containing entangled CNTs possesses higher loss tangents than a fiber spun from aligned CNTs. Liquid densification and polymer infiltration, the two common ways to increase the interfacial friction and thus the fiber's tensile strength and modulus, are found to efficiently reduce the damping coefficient. This is because the sliding tendency between CNT bundles can also be well suppressed by the high packing density and the formation of covalent polymer cross-links within the fiber. The CNT/bismaleimide composite fiber exhibited the smallest loss tangent, nearly as the same as that of carbon fibers. At a higher level of the assembly structure, namely a multi-ply CNT yarn, the inter-fiber friction and sliding tendency obviously influence the yarn's damping performance, and the loss tangent can be tuned within a wide range, as similar to carbon fibers, nylon yarns, or cotton yarns. The wide-range tunable dynamic properties allow new applications ranging from high quality factor materials to dissipative systems

A Study on Shuntian Provincial-level Examination

本研究在晚清时代巨变的历史背景下，探讨顺天乡试各方面的变化。乡试是科举考试中竞争最为激烈、影响最为深远的一级考试，而顺天乡试又具有“牵一发而动全身”的重要作用和影响。对于晚清顺天乡试的研究，其意义在于理论上对科举学内容的丰富，有利于对这一地区晚清乡试状况的梳理和对其考试特点的总结。在论文的写作中，主要采用文献法，对晚清顺天乡试的资料尤其对道光二十年庚子恩科乡试至光绪二十九年癸卯恩科顺天乡试的主考官和举人名录的整理和分析，对清末顺天乡试的特点进行了总结，并探讨了顺天乡试与当地学校教育之间的关系。文章第一部分主要是介绍本研究的背景、研究目的和意义、文献综述和理论空间、研究方法和工作步骤等内容。第二...The study is on the changes of Shuntian Provincial-level Examination in the historical background of time great change in late Qing Dynasty. Provincial-level Examination is the most competitive and influential one of the Imperial Examination.The study of Shuntian Provincial-level Examination in late Qing Dynasty is not only enrich the content of Imperial Examination research,but also help us to co...学位：教育学硕士院系专业：教育研究院_教育史学号：20041700

The Methods of Social Work Intervening Emotional needs of children in institutional care model: A Case Study in OX Children’s Homes of X City

随着社会对儿童问题的关注，儿童已成为备受关注的一个群体。生活在家庭中的儿童从其家庭成员中获得成长发展的物质条件和精神支持，而生活在机构照顾模式下的儿童，由机构替代家庭的角色为儿童提供物质基础和精神支持。目前国内对机构照顾模式下儿童更多关注的是从心理学、护理学、养护模式的转变等方面，以期对机构照顾模式下儿童的心理情况、社会交往、社会水平有全面而明晰的把握。但是这些研究大多针对某个福利院为案例，对院童的特征和存在的问题，以及应对策略作了简单阐述，缺乏深度的研究，而社会工作对福利院儿童进行的实务干预内容涉及的面窄，对介入过程的阐释不够详细。鉴于此，本文以社会工作者对一个民办福利院儿童的社会工作介入实...Along with the society to pay attention to the problems of children, children have become a community concern. Children living in the family acquire the material conditions of growth and development and spiritual supported which are from their family members. Children living in institutional care model, however, the role of family is replaced by institutions to provide the material basis and spiri...学位：社会工作硕士院系专业：公共事务学院_社会工作硕士学号：1402011115054

A Study on Fair Value Measurement for Financial Instruments

公允价值在20世纪后半期提出后，尤其是近十年中，一直是会计前沿中负有挑战性的热点和难点问题。公允价值曾被视为面向21世纪的计量属性，无论是国际会计准则理事会(IASB)、美国财务会计准则委员会(FASB)都没有放松过对公允价值的研究，并且不遗余力地推广公允价值的应用，公允价值计量己经广泛地应用于金融工具、长期资产和负债的计量中。在此次次贷危机引发的全球金融海啸之后，各界对公允价值会计的讨论越来越多，尤其是在此次危机中受影响最深的金融机构。代表金融机构利益的人士认为，在这种特殊的形势下，金融资产市场价格不能代表公允价值，使企业资本严重缩水，此时经常波动的市价必然会进一步引起金融的不稳定，动摇市场...Since the late 20th century that the concept fair value accounting was put forward, it has been a challenging problem which is difficult to make it more practical and also attracts lots of concerns. The fair value had been regarded as a measurement attribute of the 21st century. Both the IASB and FASB have made great endeavor on the research for fair value and try most to make it applicable and th...学位：管理学硕士院系专业：管理学院会计系_会计学学号：1752007115417

Ge(II)–M(I) (M = Cu, Ag, Au) Donor-Acceptor-Bonding Hetero-Bimetallic and -Multimetallic Complexes: Synthesis, Structure, and Property

本论文旨在将氮杂环卡宾电子给体扩展到同族的金属锗化合物，以期发展一类特殊的包含金属的电子给体配体，用以支撑铜基化合物的基团催化反应。主要研究合成第14族金属Ge与第11族币种过渡金属M（M=Cu，Ag，Au）之间Donor-Acceptor金属-金属键的化合物，通过结构和反应机理的考察，揭示其电子给体的本质与性能以及潜在的应用性。本论文选用β-二亚胺配体稳定的二价锗化合物为给电子体（LGeR：L=HC[C(Me)N-2，6-iPr2C6H3]2；R=Me，C(SiMe3)N2，C6F5，2，6-iPr2C6H3NH，C≡CPh），一价币种金属有机化合物为电子受体（(CuC6F5)4，(AgC6...The thesis focuses on investigation of the Lewis acid-base interaction between group 14 metal Ge(II) and group 11 coninage metal(I) M (M = Cu, Ag, Au) complexes in an attempt to develop a new type of metal-containing electronic donor widely used as support for the catalytically organic molecule transformation reactions. The β-diketiminate germylene complexes LGeIIR ( L = HC[C(Me)N-2,6-iPr2C6H3]2, ...学位：理学硕士院系专业：化学化工学院化学系_物理化学(含化学物理)学号：2052009115142

Bio-Inspired Aggregation Control of Carbon Nanotubes for Ultra-Strong Composites

High performance nanocomposites require well dispersion and high alignment of the nanometer-sized components, at a high mass or volume fraction as well. However, the road towards such composite structure is severely hindered due to the easy aggregation of these nanometer-sized components. Here we demonstrate a big step to approach the ideal composite structure for carbon nanotube (CNT) where all the CNTs were highly packed, aligned, and unaggregated, with the impregnated polymers acting as interfacial adhesions and mortars to build up the composite structure. The strategy was based on a bio-inspired aggregation control to limit the CNT aggregation to be sub 20--50 nm, a dimension determined by the CNT growth. After being stretched with full structural relaxation in a multi-step way, the CNT/polymer (bismaleimide) composite yielded super-high tensile strengths up to 6.27--6.94 GPa, more than 100% higher than those of carbon fiber/epoxy composites, and toughnesses up to 117--192 MPa. We anticipate that the present study can be generalized for developing multifunctional and smart nanocomposites where all the surfaces of nanometer-sized components can take part in shear transfer of mechanical, thermal, and electrical signals