Design and Implementation of University Fixed Assets Management System

随着我国社会经济的迅猛发展，无论是高校还是企业的固定资产总量都在不断增加，固定资产管理工作面临着更新的要求与挑战。现今的固定资产管理应该走出传统的管理模式，向现代的网络模式转变。高校的固定资产管理工作是高校的重要工作之一，其中，资产使用的监控和资产数据分析是高校固定资产管理工作的重点和难点。固定资产工作中事务性管理工作日益复杂化，特别需要更加简捷、科学的管理手段来提高工作效率。 基于以上原因和对目前高等学校迅速发展的形势进行了充分的评估，对当前高校内部的运行方式、管理水平进行了全面、系统、深入的分析研究，对我国目前有关的固定资产、财务、教学仪器设备管理的法规文件进行全面认真的了解和领会的基础...Along with our country social economy rapid development, whether in college or in the enterprise, the total amount of fixed assets was increasing, the fixed asset management faced with demand and challenge. Today's fixed asset management should be out of the traditional management mode, to modern network model transformation. Fixed assets management is the important part of information constructio...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201123002

The potential of root canal dressing containing S-PRG fillers for apical periodontitis treatment evaluated in vivo and in vitro

北海道医療大学令和元年

Sol-Supercritical Fluid Technology: Preparation of Ultrafine Silica Particles

超临界流体抗溶剂-雾化SAS-A（SupercriticalAnti-SolventAtomization，SAS-A）技术以PGSS（particleformationfromgas-saturatedsolution）和SEDS（solutionenhanceddispersionbysupercriticalfluids）技术为基础，综合了PGSS和SEDS的优点，适用于从水溶液中获取药物等超细颗粒的制备，并且在药物、聚合物、蛋白质等方面已经取得了一些研究结果。本工作将SAS-A超临界流体技术应用于溶胶的处理，研究制备无机（SiO2）超细粉体。 采用正硅酸四乙酯（TEOS）为前驱物，以...Supercritical anti-solvent atomization (SAS-A) is a combination of particle formation from gas-saturated solution (PGSS) and solution enhanced dispersion by supercritical fluids (SEDS) processes. It can be applied to aqueous solutions to remove water to achieve fine solid powders at mild operation conditions (low temperature and low pressure); it has shown good applications in preparing various fi...学位：工学硕士院系专业：化学化工学院化学工程与生物工程系_化学工程学号：2062006115203

Effect of heron nesting on the nitrogen and phosphorus cycles of Acacia confuse forest in uninhabited island

鹭鸟是鹭科(Ardeidae)鸟类的总称，在我国分布极广，是湿地生态系统中重要的生物类群之一。鹭鸟多营巢于树、竹上，主要以幼鱼、虾、水生昆虫等水生生物和两栖类为食。当其归巢休憩时，会为营巢地带来数量可观的鸟粪。由于鸟粪中富含氮磷元素，必然会对营巢地森林生态系统的氮磷循环产生影响。本研究选取典型无居民海岛厦门市大屿岛白鹭自然保护区的鹭鸟营巢地台湾相思林(Acaciaconfuse)为试验对象，主要通过林地土壤和凋落物研究结合15N自然丰度法，揭示鹭鸟营巢对于森林生态系统氮磷循环的影响，为更好地认识鹭鸟作为将养分从水域向陆地转移的运输者在生态系统中的地位和功能提供科学依据。 本研究表明，鹭鸟营巢...The herons, long-legged freshwater and coastal birds in the Ardeidae family, are widespread in China and play an important role in wetland ecosystem. They often make nest on tree or bamboo and feed on young fish, shrimp, aquatic insect and amphibian. In the nesting area, a large amount of heron’s excreta rich with nitrogen and phosphorus element can be found, which often lead to changes in the nut...学位：理学硕士院系专业：海洋与环境学院环境科学与工程系_环境科学学号：2242008115147

A high-pressure extraction technique and its application in seed oil

设计并建立一套适用于植物油萃取的高压工艺的实验装置。在温度为12~24℃、压力约6 MPa时,以高压液体二氧化碳对沾油布条的预萃取实验表明,该装置可以在萃取温度下40 min内将油从布条中几乎萃取完毕。在温度为25~40℃、压力为0.4~1.0 MPa下,采用液化气为萃取剂,考察该工艺对完整颗粒的黄豆和花生中植物油的萃取收率。常压条件下,考察了常规使用的正己烷溶剂于不同萃取温度下对完整颗粒的黄豆和花生中植物油的萃取收率的影响。比较2种萃取方式所得同种原料的对应植物油的萃取收率的结果表明:以正己烷为溶剂,常压萃取对豆油的萃取效果较好,萃取温度在正己烷沸点时效果最佳,豆油的萃取收率达2.88%;以液化气为溶剂,采用高压萃取方式对花生油的萃取效果较好,萃取温度在40℃时,花生油的萃取收率达4.91%。An experimental apparatus for high-pressure extraction of seed oil was designed and established.At 14～24℃ and about 6 MPa the apparatus was applied to a model system:cloth adsorbed with oil;the extraction results showed the oil could be quickly extracted into liquid carbon dioxide within 40 min at different extraction temperature,indicating the availability of the technique.At 25～40℃ and 0.4～1.0 MPa the apparatus was employed to extract seed oil from unbroken soybean and peanut respectively by using liquefied-gas as the extractant.Moreover,the oil extraction from unbroken soybean and peanut were also investigated at atmospheric pressure by using conventional hexane as the extractant.The oil yields obtained from the same material by the two methods were compared and analyzed.Results showed that hexane as solvent for extracting soybean at the boiling point of hexane with the extraction rate of 2.88% was more favorable than liquefied-gas implemented at high pressure;liquefied-gas as the solvent at high pressure for extracting peanut at 40℃with the extraction rate of 4.91% was better than hexane.教育部留学回国人员科研启动基金资助项目(项目编号);; 福建省新世纪优秀人才支持计划和福建省自然科学基金资助项目(E0710026

Study on virtual animation technology of sheet metal bending

板料折弯成形是指把薄板材料弯成一定角度的加工方法。本文通过分析折弯机结构参数,基于OPEngl ES在WInCE的平台上建立了数控折弯成形仿真的可视化界面,实现了板料折弯成形的3d动态仿真。以树状结构为基础,结合干涉检测等影响板料折弯成形的工艺因素,探讨了板料折弯成形的工艺改进以及工序搜索方法,计算判断出可行的板料折弯成形工序,再由OPEngl ES直观显示板料折弯加工工艺信息。板料折弯成形试验表明,该方法可以实现快速、精确的板料折弯成形。Sheet metal bending is a method to bend the sheet metal with a certain angle.Through analysis of the structural parameters of bending machine and based on OpenGL ES,the visual interface of NC bending animation was established on the WinCE platform,and the3D dynamic animation of sheet metal bending was achieved.Based on tree structure,the forming process development and search method of sheet metal bending were discussed combinated with interference detection and some else factors affecting the forming process.And a feasible procedure of sheet metal bending was achieved,then the information of sheet metal bending procedure was showed with OpenGL ES.And the forming method of sheet metal bending can achieve accurate,rapid and precise sheet metal forming with field machining

Ag修饰La_(0.6)Sr_(0.4)MnO_3基催化剂氧物种的谱学表征

采用柠檬酸溶胶-凝胶法制备钙钛矿型La0.6Sr0.4MnO3 氧化物, 并用Ag 对其进行修饰,制得Ag/La0.6Sr0.4MnO3 催化剂.活性评价结果显示, Ag 的修饰能显著提高原基质催化剂La0.6Sr0.4MnO3 对低浓度CH3OH和CO完全氧化的催化活性, 相应于95% CH3OH和CO转化所需反应温度T95分别可低至421 和370 K. 催化剂的XPS和LRS谱学表征结果揭示, 在6% Ag/La0.6Sr0.4MnO3上, 具高度反应活性的表面氧物种O22- (a)和O-(a)在总表面氧中所占克分子百分数(m ol% )几近未经Ag 修饰的基质体系La0.6Sr0.4MnO3 的两倍. O2-TPD测试结果证实,Ag 对La0.6Sr0.4MnO3基质的修饰、掺杂和部分取代使其对O2 的低温吸附能力大为提高,诱生出一类数量可观具有低温吸-脱附性能的吸附氧物种. 本文结果表明, Ag/La0.6Sr0.4MnO3 催化剂对CH3OH和CO完全氧化高的催化活性与Ag 的修饰提高了催化剂对氧的低温吸附活化能力, 并使催化剂上对CHX, CH3OH, HCHO和CO具高度反应活性的表面氧物种O22- (a)和O-(a)的相对含量明显增加密切相关

支撑应力对骨小梁分布的影响及股骨头坏死因素的研究

目的通过犬股骨颈骨折螺钉内固定模型的力学检测及组织学观察,从微观角度认识骨小梁重建对股骨头坏死的影响。方法选取18只成年田园犬制作成股骨颈骨折螺钉内固定模型,于造模后12周确认所有股骨颈骨折已愈合随机分为取钉组、取钉植骨组及不取钉组,于造模后20周分离所有犬的股骨并进行股骨颈力学测试及组织学观察。结果取钉组、取钉植骨组及不取钉组断裂点载荷、最大载荷差异有统计学意义(P0.05),不取钉组与取钉植骨组断裂点载荷大于取钉组;不取钉组最大载荷大于取钉植骨组与取钉组,取钉植骨组最大载荷大于取钉组。取钉组、取钉植骨组及不取钉组骨小梁宽度与新鲜骨面积差异有统计学意义(P<0.05);不取钉组骨小梁宽度、新鲜骨面积大于取钉植骨组,且取钉植骨组大于取钉组。结论支撑应力的改变将导致骨小梁重新分布,骨小梁再分布是影响股骨头坏死塌陷的重要因素。福建省卫生系统中青年骨干人才培养项目(2014-ZQNJC-34

低浓度甲烷甲醇深度氧化Ag/La_(0.6)Sr_(0.4)MnO_3催化剂

用柠檬酸溶胶 凝胶法制备钙钛矿型La0.6Sr0.4MnO3 氧化物,并用Ag对其进行修饰,制得Ag/La0.6Sr0.4MnO3 系列催化剂.结果表明 ,6 %Ag/La0.6Sr0.4MnO3 催化剂上甲烷或甲醇氧化转化95 %时的反应温度T95 可低至735K(对CH4)或421K(对CH3OH);适量Ag的负载修饰并不改变催化剂基质氧化物La0.6Sr0.4MnO3 的纳米级钙钛矿型结构;Ag的掺杂诱使催化剂中部分Mn3 +氧化为Mn4 +;Ag组分与钙钛矿型氧化物基质La0.6Sr0.4MnO3 表面的相互作用促使该催化剂对甲烷或甲醇的完全氧化表现出高而稳定的催化活