基于RBF神经网络的复杂曲面反求数据修补

复杂曲面反求过程中,原始数据的缺损直接影响3D网格模型逼近目标曲面的精度。介绍了基于RBF神经网络开发的复杂曲面反求数据自动修补系统,应用以Matlab为平台开发的仿真模块对数据修补过程进行了仿真。结合曲面反求设计实例对基于RBF神经网络的数据修补系统进行了实验验证和分析,获得良好的效果。     

地下汽车库诱导通风系统的设计探讨

本文分析了诱导避风系统的工作原理。探讨了系统的设计方法及运行控制措施。     

A TIME-COST TRADE-OFF MODEL WITH RESOURCE CONSIDERATION USING GENETIC ALGORITHM

A genetic algorithm (GA)-based model to deal with time-cost trade-off problems is presented. The traditional algorithms assume the unlimited availability of resources. Instead, the proposed model allows for resource constraints. Accordingly, the trade-off is considered in terms of the level of resources to be deployed for each activity. At the same time the model schedules the starts of the activities in order to optimize the objective function. The activity starts is a significant factor in the case of non-uniform available profile. The GA searches both spaces of resource utilization and activity starts to determine the optimal schedule that conforms to the resource available profile. Although, in principle, this has the potential of a combinatorial explosion, earlier work suggests that the GA-based model can be applied to larger networks without appearing to suffer from this problem. Allowing the project manager to think in terms of resource utilization makes this approach consistent with resource allocation problems, and more pragmatic and appealing. The model can also be used to solve conventional time-cost trade-off problems by a simple modification of the objective function. Numerical examples are used to illustrate the working of the model. The examples include a case of varying resource available profile.     

借鉴设备监理制度改革军事代表工作模式研究

针对我国现行军事代表制度迫切需要改革的现实情况,在对设备监理制度进行分析和研究的基础上,对比分析了军事代表工作与设备监理的异同,提出了借鉴设备监理制度的成功经验改革现有军事代表工作模式的具体方案和建议.     

正确界定和把握治理商业贿赂政策界限研究(节选)

治理商业贿赂是党中央、国务院作出的重大战略决策和部署。为加强治理商业贿赂理论研究,认真解决专项治理工作中遇到的理论与实践问题,推进治理商业贿赂工作深入开展,根据中央治理商业贿赂领导小组统一部署,水利部治理商业贿赂课题研究组就正确界定和把握治理商业贿赂政策界限进行研究,对商业贿赂的概念及特征、商业贿赂的构成要件、商业贿赂行为表现形式及危害开展研讨,提出了治理商业贿赂的政策界定、治理商业贿赂的政策适用和治理商业贿赂的政策建议。本刊对课题报告进行摘登,供读者学习。[编者按]     

百色水利枢纽地下厂房防渗排水系统设计

介绍百色水利枢纽地下厂房防渗排水系统设计。根据地下厂房系统的布置特点及水文地质条件地下厂房采用以“厂外堵排为主，厂内排水为辅”的防渗排水措施，经三向电阻网络渗流模型试验验让，该方案是可行的。     

应用计算机划分河道复式断面主边槽方法探讨

通过分析复式断面流量模（Ｋ）与高程（Ｚ）的函数关系及其曲线特性，探讨运用数学方法和数值分析确定断面主边槽的分界点，从而实现应用计算机划分断面主边槽     

乙烯裂解炉长周期运行的瓶颈问题与对策

分析了乙烯裂解炉长周期运行存在的瓶颈问题,提出了解决问题的方案。从炉管设计、选材、使用维护、检测和维修几方面采取措施将是十分有效的。     

Diagnostics of Rovibrational Distribution of H2 in Low Temperature Plasmas by Fulcher-α band Spectroscopy - on the Reaction Ratesand Transition Probabilities

A novel fitting procedure is proposed for a better determination of H2 rovibrational distribution from the Fulcher-α band spectroscopy. We have recalculated the transition probabilities and the results show that they deviate from Franck-Condon approximation especially for the non-diagonal transitions. We also calculated the complete sets of vibrationally resolved cross sections for electron impact d^3IIu- X^3∑g transition based on the semi-classical Gryzinski theory. An example of experimental study confirms that current approach provides a tool for a better diagnostics of H2 rovibrational distribution in electronic ground state.