论和谐班级建设

和谐班级建设是和谐社会、和谐校园建设的重要组成部分。创建和谐班级是贯彻落实国家教育方针,构建和谐社会的需要,也是促进大学生成长的需要。从实践经验中总结和谐班级建设的措施,要加强集体主义教育,强化学生班级凝聚力,培养学生主观能动性,建立班级管理的科学方法,建立健全班委职责,放手锻炼班级干部。     

论极端气候事件及其影响

介绍了近些年在我国发生的极端气候事件及极端天气对人民生活和社会经济发展的不良影响,分析了造成极端天气事件的原因。认为人类须养成科学环保的生活习惯,加强对自然生态环境的保护,以减少极端气候事件的发生。     

对兰渝铁路沿线经济带建设的思考

分析了兰渝铁路沿线主要城市的社会、经济和城镇建设状况,指出了沿线地区经济发展中存在的问题。认为兰渝线经济带是连接一级轴线(长江经济带)和二级轴线(成渝经济区、天水-关中经济带)的桥梁,在加强重庆、兰州的龙头作用的同时,应着力培育南充、广元、陇南三个经济增长点,注意克服城镇化过程中的问题,避免区域剥夺现象,加快产业结构调整,发展农业特色经济。     

论生态文明建设中的生态道德场

生态道德场是道德场丰富和发展的产物,是与生态文明建设相适应的道德场。生态道德场对于人的生态道德意识的培养、生态道德行为的养成具有重要影响。生态道德场的有效运行,可以促进我国国民生态道德素养的提升和生态文明观念的确立,推动人们形成文明、健康、和谐的生产方式和生活方式,从而促进人与人、人与社会、人与自然关系的和谐发展,这对于我国生态文明建设具有十分重要的现实意义。     

基于模糊神经网络的自适应精确曝气系统设计

基于模糊神经网络理论,将自回归各态历经(ARX)模型与模糊神经网络模型(FNNM)相结合,设计一套具有自适应能力的前馈-反馈精确曝气控制系统,解决目前污水处理曝气过程中冗余曝气能源浪费、溶解氧波动大的问题.以污水厂处理PID控制生物池数据作为训练样本,以模糊神经网络自适应精确曝气模型仿真与传统PID控制比较,发现该系统...     

混合测试框架的研究与实现

为有效解决NP(网络处理器)仿真器测试问题,研究了自动化测试框架的原理与技术.针对NP仿真器的特点,基于混合测试驱动框架,提出了一种简单的测试框架.只需编写少量脚本即可实现复杂的测试.测试框架降低了测试成本,提高了效率和质量.     

基于三维模型的飞机红外图像仿真研究

要对红外成像制导导弹攻击飞机的过程进行仿真,需要生成目标飞机的红外图像。当飞机受到导弹攻击时会采取各种机动动作进行规避,这就使导引头所探测到的图像随着弹目距离、飞机姿态而变化,所生成的红外图像必需能够反应这种变化。文章首先根据能量守恒定律和黑体辐射定律,并综合考虑了大气透过率、光学系统透过率和探测器响应率的影响,推导了导引头探测器接收到的飞机红外辐射功率计算公式,利用该公式计算出所建飞机三维模型每个面的辐射功率,并将其转换为红外灰度值,最后利用OpenGL技术直接对飞机三维模型进行操作,以实现各种位置、姿态下三维飞机模型到二维图像的转换,并用光学系统的点扩散函数与输出的图像进行卷积,最终得到反映光学模糊的飞机红外图像,最后开发了红外图像仿真软件,利用该软件生成了几种不同位置、不同姿态下的飞机红外图像,并对其进行了分析。     

p-moment stability of stochastic impulsive differential equations and its application in impulsive control

The exponential p-moment stability of stochastic impulsive differential equations is addressed. A new theorem to ensure the p-moment stability is established for the trivial solution of the stochastic impulsive differential system. As an application of the theorem proposed, the problem of controlling chaos of Lorenz system which is excited by parameter white-noise excitation is considered using impulsive control method. Finally, numerical simulation results are given to verify the feasibility of our approach. Supported by the National Natural Science Foundation of China (Grant No. 10772046)     

A new type counter electrode for dye-sensitized solar cells

A new type counter electrode for dye-sensitized solar cells (DSCs) was proposed which consists of substrate, aluminum film and platinum film. The new type counter electrode can obviously improve the photoelectric conversion efficiency of DSCs from 3.46% to 7.07% under the standard AM1.5 irradiation condition. Advantages and shortcomings of this new type counter electrode in terms of electrical properties, optical properties and anti-corrosive properties were analyzed. As a result, some improvements were proposed. Supported by the Key Foundation for Fundamental Research of Tianjin Municipal Science & Technology Commission in China ( Grant No. 06YFJZJC01700) and the National Basic Research Program of China (“973“ Project) (Grant Nos. 2006CB20260, 2006CB202603)     

Asynchronous rotation scan for synthetic aperture interferometric radiometer

Synthetic aperture interferometric technique has wide applications in optics, radio astronomy and microwave remote sensing areas. With the increasing demands of high resolution imaging observation, a new time-sharing sampling scheme of asynchronous rotation scan is proposed to meet the technical challenge of achieving a large equivalent aperture and overcome the operating barriers of space borne application. This configuration is basically composed by two asynchronously and concentrically rotating antenna groups, whose revolving radii and speeds are different. The synthetic aperture system with asynchronous rotation scanning scheme can effectively solve the trade-off problem of system complexity, and greatly simplify the system hardware at the cost of sacrificing a certain time resolution. The basic rules and design methods of asynchronous rotation scan are investigated The Gridding method is introduced to inverse the spiral sampling data for image reconstruction. The potential applications of geostationary orbit (GEO) earth observation and solar polar orbit (SPO) plasma cloud observation are explored with numerical simulations to validate the significance and feasibility of this new imaging configuration. Supported by the National Natural Science Foundation of China (Grant No. 40574070, 40671121, 40701100 and 40801136) and the National High-Tech Research Program of China (“863” Program) (Grant No. 2006AA12Z141)