99Tcm-葡萄糖二酸亲肿瘤显像剂的动物实验

选用＾９９Ｔｃ＾ｍ－葡萄糖二酸（＾９９Ｔｃ＾ｍ－ｇｌｕｃａｒａｔｅ,简称＾９９Ｔｃ＾ｍ－ｇｌｕ）作为肿瘤阳性示踪剂,对肺腺癌小鼠模型进行动物实验,以主要组织器官的放射性摄取百分比及Ｔ／ＮＴ作为统计指标并常规静态及延时显像观察。     

炮塔加热过程数学模型与计算机仿真研究

通过对炮塔热处理加热过程的分析研究,取局部最大壁厚处作为二维非稳定态传热问题进行离散化处理,建立了工件加热过程显式有限差分仿真模型。并对计算机仿真结果与实测数据进行了比较验证。     

虚拟现实的发展及在机器人系统中的应用与研究

本文全面回顾了虚拟现实技术的发展,及其在机器 人领域的应用与研究;分析了目前所面临的问题及主要研究方向．     

G型里氏硬度计在测试中的适用性分析

针对用便携G型里氏硬度计对低强度钢板测试其硬度值偏低的现象 ,利用静载台式硬度计及动载里氏硬度计对高强度不锈钢板和低强度结构钢板进行了测试 ,并进行了对比分析。得出 ,对同一低强度钢板 ,用G型里氏硬度计测出的值比台式硬度测试值低。探讨了里氏硬度测试值偏低的原因 ,对使用里氏硬度计测试低强度钢板硬度提供了科学依据。     

Studied on a novel human keratinocyte membrane delivery system in vitro

The culture of keratinocytes on flexible membranes has been proposed as a means to simplify, accelerate and improve the efficiency with which proliferating cells are delivered to full thickness or non-healing skin defects. The purpose of this article was to study the ability of chitosan-gelatin manbranes to facilitate the growth of human keratinocytes. The membranes with different chitosan contents were studied. The surface properties of chitosan-gelatin membranes were investigate by SEM, and water contact angle test. The mechanical property of the membranes was tested. Data implied that gelatin could make the membranes more flexible and hydrophilic than chitosan membranes, which may regulate the seeded cells behavior. Loading human keratinocytes on chitosan-gelatin membranes, cells attachment, spread, and growth were investigated by light microscopy, SEM, and MTT test. The results suggested that the adhesion and proliferation of keratinocytes seeded on chitosan-gelatin membranes were same as on tissue culture plate, in which gelatin could modify the interaction between keratinocytes and chitosan membranes. Therefore, chitosan-gelatin membrane is a good candidate for keratinocytes delivery system.     

30.4 nm Si/C多层膜反射镜的制备与测量

采用离子束溅射镀膜装置制备了一种新的材料组合Si/C多层膜 ,用于 30 4nm波段的正入射多层膜反射镜。并用软X射线反射率计测得其反射比最大值为 0 14。有效地抑制了 15 0nm处的二级衍射峰。     

中空海胆状结构的碳包覆Fe2O3用作锂离子电池的高性能负极材料

Fe2O3由于成本低廉,储量丰富和理论比容量高(1007 mA hg^-1)等特点,在锂离子电池负极材料的应用中极具发展前景.然而一些问题仍然存在,如:充放电过程中比容量的迅速衰减,不可逆的体积膨胀以及较短的循环寿命等.这些问题严重制约了Fe2O3在锂离子电池中的实际应用.为了突破这些局限,本文以金属-有机骨架(MOF...     

Numerical examination of wave power absorption by the Edinburgh Duck wave energy converter device

A two-dimensional computational fluid dynamics(CFD)numerical model is developed to study the power takeoff(PTO)efficiency of an Edinburgh duck wave energy conve...