基于OpenGL的新型水雷三维仿真训练系统

为克服我国新型水雷开展训练面临的困难,介绍了采用Visual C++及OpenGL构建某型水雷三维仿真训练系统的方法和过程.重点阐述了如何在OpenGL开发环境中实现对三维模型的交互控制.训练系统的建立证明了方法的可行性.     

基于Python语言的3DES算法优化

介绍了3DES加密算法的原理,描述了对Python语言自带模块pyDES模块中3DES算法的优化过程,分析了3DES算法编程实现过程中效率优化时所遇到的问题及解决方法;最后使用Python语言中的profile工具对优化后的算法进行了测试,数据表明优化后的3DES算法提高了原算法的加解密速度和安全性.     

面向对象程序的类信息的抽取规则

通过计算机自动实现对程序的理解是目前国内外研究的热点内容。以面向对象程序为研究对象,提出了一种从面向对象程序中抽取类信息的规则,利用该规则可以将程序中的类以及其它程序信息抽取出来,并以UML类图形式表示出来,进而为计算机自动实现对程序的理解奠定基础。在本文中描述了产生UML类图中的各类规则,包括了类、属性、操作、对象、关系、继承、关联和接口等。最后介绍了该规则的一个应用实例。     

优化井身结构合理选择套管降低钻井成本

钻井成本居高不下已经严重制约了石油工业的发展。华北油田采取低成本战略,在钻井设计施工中,从改变井身结构和套管管串结构入手,探讨降低钻井成本的方法,在上半年完成的106口井中每米钻井成本下降104.34元,共节约成本近3000万元,取得了较好的经济效益。     

建筑工程点线面质量控制

本根据系统论、控制论的基本观点，提出了点线面质量控制法，并就该方法的有关内容加以论述。     

数字电视分前端系统集成的讨论

讨论地市级分前端系统构成与维护，分析不同节目源的特点及后续处理方法，结合本地节目插入对技术指标保障作具体分析，并就EPG信息的统一规划进行细致论述。     

A study on building sustainable communities in high-rise and high-density apartments – Focused on living program

The purpose of this study is to suggest a conceptual model for sustainable communities, considering sustainable development and placemaking perspectives of community building in Korean apartment complexes. This study then verifies the validity of the model as an action plan. Based on a review of literature at home and abroad, the model was conceptualized on the structure of living programs and physical and social settings for sustainable communities in Korean apartment complexes. The living program, which connects physical and social settings, consists of four action subjects: Activation of community spaces, activation of community programs, activation of participation, and activation of ecological living and design. This model demonstrates that a living program will increase resident satisfaction and result in a sustainable community. Three subjects out of the four suggested in the living program of the model were empirically tested based on previous research data. According to the correlation analysis between living programs and residential satisfaction, when residents are satisfied with community spaces, programs, and participation in the community, overall residential satisfaction rises. Accordingly, the living program of the conceptual model plays a meaningful role in developing sustainable communities in Korean apartment complexes.     

VFP表单任意列表格及嵌入控件的设计

本文针对ＶＦＰ系统在表单中设置表格对象，首先需要确定列数的限制，提出了一个利用宏替换命令和其它事件代码设置任意列表格及嵌入控件的表单程序设计方法。     

Economy and CO2 emissions trade-off: A systematic approach for optimizing investments in process integration measures under uncertainty

In this paper we present a systematic approach for taking into account the resulting CO₂ emissions reductions from investments in process integration measures in industry when optimizing those investments under economic uncertainty. The fact that many of the uncertainties affecting investment decisions are related to future CO₂ emissions targets and policies implies that a method for optimizing not only economic criteria, but also greenhouse gas reductions, will provide better information to base the decisions on, and possibly also result in a more robust solution. In the proposed approach we apply a model for optimization of decisions on energy efficiency investments under uncertainty and regard the decision problem as a multiobjective programming problem. The method is applied to a case of energy efficiency investments at a chemical pulp mill. The case study is used to illustrate that the proposed method provides a good framework for decision-making about energy efficiency measures when considerations regarding greenhouse gas reductions influence the decisions. We show that by setting up the problem as a multiobjective programming model and at the same time incorporating uncertainties, the trade-off between economic and environmental criteria is clearly illustrated.     

On analog circuit design methodology via multi-objective geometric programming

This paper concerns a design methodology for analog circuit problems, which is based on formulating the problem as a multi-objective geometric program （GP）. Multiple objectives are combined into a scalar objective thru certain convex functions and thus can be solved using regular GP algorithms. In contrast to single-objective optimization, simultaneous consideration of all objectives yields a compromising solution among objectives. By varying individual objective＇s weight factor, a Pareto （or trade-off） curve can be constructed, providing designers with a useful decision-making information.