均匀介质覆层导电椭圆柱电磁散射分析

本文采用 OSRC—GMT 研究了共焦均匀介质覆层导电椭圆柱的电磁散射特性。文中仅讨论了横磁(TM)波散射的情况、而横电(TE)波的情况可按同样方法分析。本中给出了用OSRC—GMT 方法求得的日标散射方向图的数值结果。数值计算表明,该方法求得的解与精确解有着良好的吻合。     

Super-high sensitivity systems for detection and spectral analysis of ultraweak photon emission from biological cell cells and tissues

Summary In this paper we summarize and discuss the modern technology and systems, studied and established by our research group, for performing the detection and special analysis incorporated with the super-high senstivity photon counting method for the study of ultraweak photon emission; for example, extra-weak bioluminescence and chemiluminescence from living cells and tissues, closely related to biochemical and biophysical processes and activities. An excellent sensitivity of the basic photon counting system, making it possible to achieve count rates in the very low range of one photoelectron per second to one per minute, allowed us to carry out in vivo as well as in vitro measurements, and analyses of ultraweak bioluminescence and chemiluminescence. Recent results concerning ultraweak photon emission from blood samples and organ homogenates of rats are presented and reviewed as one of the interesting and valuable applications of our modern technology for studying ultraweak cell and tissue radiation.     

综放工作面顺槽邻空巷卸压新技术的应用

针对某煤矿综采低位放顶煤工作面回采过程中发生冲击性压力,邻空巷道炸帮严重、底臌、原支护被折断或爆裂等状况,在邻空巷底、帮分别施工卸压槽和卸压孔,有效地控制了压力显现。     

无机化学精品课程网站设计和建设

采用先进的Asp—Access技术设计和构建无机化学精品课网站，使网站具有很强的交互和可维护性．在网站资源建设方面，充分展示了无机化学课程组拥有的教学资源和独具特色的教学成果．     

仿真技术的发展及其在无人飞行器效能分析中的应用

本文讨论了仿真技术发展的特点及其应用,介绍了仿真与人工智能、计算机图形学以及面向对象技术的联系。文中的三个示例用来说明仿真技术在无人飞行器效能分析中的应用。     

Modelling non-normal first-order autoregressive time series

We shall first review some non-normal stationary first-order autoregressive models. The models are constructed with a given marginal distribution (logistic, hyperbolic secant, exponential, Laplace, or gamma) and the requirement that the bivariate joint distribution of the generated process must be sufficiently simple so that the parameter estimation and forecasting problems of the models can be addressed. A model-building approach that consists of model identification, estimation, diagnostic checking, and forecasting is then discussed for this class of models.     

数字特技造就全新梦幻标准

阐述了由电脑数字特技而引发的全新电影视觉冲击力，并详细利用《指环王》的特技来分析说明。     

浅议基于网络平台的软件开发

分析了互联网飞速发展的原因,阐述了基于网络平台的软件开发技术的发展趋势,指出基于操作系统平台的应用软件开发技术已退出历史舞台,而基于互联网的软件开发技术将成为软件开发技术的主流。     

便捷化三防工艺技术研究

三防工艺的便捷化,可以实现在调试、维修、施工、使用现场进行三防操作,弥补电路板、接插件等因现场操作而造成的局部三防缺陷或遗漏.     

塔里木油田沙漠钻井装备保护技术

为保证钻井装备在风沙大及气温高的恶劣环境下正常工作，塔里木油田采取了许多保护措施．本文介绍５项保护措施：（１）防沙棚防护技术（２）柴油机进气系统防沙技术，其特点是３级过滤机构的第一级为旋风管式粗滤器，细沙在离心力作用下沿筒体边缘下落而分离出来；（３）直流电动机冷却系统防沙技术──在冷却风道上加装分离器，冷却风中的细沙被分离器阻挡，不能进入电动机气隙；（４）润滑油贮输系统防沙技术──采用密闭贮输系统，使现场油品不外露；（５）电磁涡流刹车装置冷却技术──采用输流式风机强制冷却系统。以上措施对钻井装备起到了较好的保护作用．