C＋＋Builder环境下调色板的使用

本文介绍了调色板的原理及在C＋＋Builder下使用调色板的方法,给出了一个256色彩色图像通过修改调色板进行反相的实例,该方法能够解决C＋＋Builder下处理调色板时改变图像素数据的问题。     

一种基于并发程序设计的多媒体系统同步模型

多媒体系统中各个媒介信息的同步是多媒体系统创作中的一个难题。本文用面向对象的方法提出一个模型，该模型基于一种并发程序设计语言—ＣｏｎｃｕｒｒｅｎｔＣ＋＋，较好地解决了同步问题。     

用VC＋＋完善RealPKayer

目前流行的媒体播放软件RealPKayer存在着一些使用不便之处。我们为了解决这些问题而采用VC＋＋6．0编制了一个小程序。该程序能够适当弥补RealPKayer的不足。同时该程序所采用的很多技巧对于我们其它程序也具有相当的参考价值。     

VisualC＋＋编程方法一则

本文以如何定做状态条为例，介绍了一种在Ｗｉｎｄｏｗｓ环境下用ＶｉｓｕａｌＣ＋＋编程的方法与技巧－找到用ＭＦＣ编程时所使用的类的原始定义，利用系统提供的源码来编程，并使用该方法解决了复杂的多档多视应用中的一个基本问题。     

C++程序设计中有关数组的若干问题探讨

介绍了C＋＋中有关数组的一些疑难问题及其解决方法,对实际编程中遇到的一些问题作了阐述.     

C^＋＋信息抽象系统

本文描述了一个用于分析Ｃ＾＋＋程序结构的系统。该系统根据关系模型从Ｃ＾＋＋程序中提取出各种关系信息并将其存贮到数据库中供分析源程序之用。借助该系统构造了一个Ｄｅｍｅｔｅｒ／Ｃ＾＋＋法则的检测工具。     

C^＋^＋代码重用技术浅析

本文就软件开发中很难解决的代码重用问题阐述了Ｃ＾＋＾＋对该类问题的解决方法，并给出了相应实例帮助解说。     

VC＋＋6．0绘图时映射模式转换及其坐标偏差消除方法

介绍了用VC＋＋6．0编写图形交互程序时,在采用特定的映射模式下,用户鼠标拾取点的坐标向该映射模式坐标转换时所出现的问题及其解决方法和技巧。     

基于VC＋＋平台的工程曲线绘图软件开发

工程曲线在机械设计中有着很广泛的应用,而AutoCAD中不能直接应用函数或数据绘制工程曲线,给科研和教学工作带来很大不便,现在也很少有专门绘制工程曲线的软件。为了解决这个问题,利用面向对象的VC＋＋编程语言编写了一个专用软件来绘制各种工程曲线,这样可以解决AutoCAD不能绘制工程曲线的问题,给科研、教学都带来些方便。     

基于Visual C＋＋的GPRS服务器制作

针对GPRS无线通信服务器界面制作问题．提出一种基于Visual C＋＋制作GPRS服务器的方案。在该方案中,解决GPRS无线通信的驱动．分析GPRS无线通信中的ASCII码显示处理问题,实现GPRS服务器的网络连接和数据接收。实验结果表明,该方案正确、可靠。     

Iterative inflow-implicit outflow-explicit finite volume scheme for level-set equations on polyhedron meshes

In this paper, we propose a cell-centered finite volume method for advective and normal flows on polyhedron meshes which is second-order accurate in space and time for smooth solutions. In order to overcome a time restriction caused by CFL condition, an implicit time discretization of inflow fluxes and an explicit time discretization of outflow fluxes are used in an iterative procedure. For an efficient computation, an 1-ring face neighborhood structure is introduced. Since it is limited to access unknown variables in an 1-ring face neighborhood structure, an iterative procedure is proposed to resolve the limitation of assembled linear system. Two types of gradient approximations, an inflow-based gradient and an average-based gradient, are studied and compared from the point of numerical accuracy. Numerical schemes are tested for an advective and a normal flow of level-set functions illustrating a behavior of the proposed method for an implicit tracking of a smooth and a piecewise smooth interface.     

Automatic assembling procedure generation from mating conditions

A method is developed to automatically generate an assembling procedure for an assembly. In this work, an assembly is described by its components and their relationship in an assembly, especially the mating conditions. From the mating conditions of the components, an assembling procedure is generated in two steps. First, each component in an assembly is located at a specific vertex of a hierarchical tree. Second, an assembling procedure is generated from the hierarchical tree with the help of interference checking.     

A successive estimation scheme of an occupation probability†

This paper treats of an estimation problem of an occupation probability of some targets in a Tegion M by an infra-red detector followed by a threshold device in a satellite.

First, a successive estimation scheme is proposed for an estimation problem of an occurrence probability of signal 1 of the 1,0 type binary signal sequence disturbed by some noise. The estimate obtained by this scheme is shown to converge to the true value with probability one and in the mean square. Then, as an application of this scheme for the occurrence probability, an estimation scheme for an occupation probability is proposed. Two examples illustrating the scheme for an occupation probability are presented.     

Static and dynamic postural loadings during computer work in females: Sitting on an office chair versus sitting on an exercise ball

Seated computer work results in prolonged static loading, which has been associated with the development of musculoskeletal disorders. A popular alternative to sitting on an office chair while performing computer work is to sit on an exercise ball. Sitting on an exercise ball might affect static and dynamic aspects of working posture. We monitored posture, muscle activation and spinal shrinkage in 10 females performing a 1-h typing task, while sitting on an office chair with armrests and while sitting on an exercise ball. Sitting on an exercise ball resulted in 33% more trunk motion and in 66% more variation in lumbar EMG. Both of these findings can be considered to be an advantage for the exercise ball. However, the fifth percentile and average lumbar EMG were also higher when sitting on an exercise ball, with 38% and 78%, respectively. In addition, more spinal shrinkage occurred when sitting on an exercise ball than when sitting on an office chair. Arm flexion was reduced, but trapezius activation was unaffected when sitting on an exercise ball. It is concluded that the advantages with respect to physical loading of sitting on an exercise ball may not outweigh the disadvantages.     

Roughness in MV-algebras

In this paper, by considering the notion of an MV-algebra, we consider a relationship between rough sets and MV-algebra theory. We introduce the notion of rough ideal with respect to an ideal of an MV-algebra, which is an extended notion of ideal in an MV-algebra, and we give some properties of the lower and the upper approximations in an MV-algebra.     

基于ISM的互操作性测试方法

协议测试中的互操作性测试是保证不同厂商通信设备之间能够正确实施互操作的主要工程测试方法。针对互操作性测试过程中缺乏形式化测试框架和测试方法指导而导致无法保证测试可靠性的问题,在介绍ETSI定义的通用互操作性测试模型基础上,提出一个基于互操作性状态机的互操作性测试方法。通过一个面向IPsec VPN的互操作性测试实例表明该方法的有效性和可行性。     

Stabilization via homogeneous feedback controls

In this paper, we provide an explicit homogeneous feedback control with the requirement that a control Lyapunov function exists for an affine control system and satisfies an homogeneous condition. We use a modified version of the Sontag formula to achieve our main goal. Moreover, we prove that the existence of an homogeneous control Lyapunov function for an homogeneous affine system leads to an homogeneous closed-loop system by using the previous feedback control.     

企业内部供应链信息流集成 --上海精艺纺织制品加工厂集成化信息系统的建立

提出了以Intranet为基础 ,针对企业的实际现状 ,为企业进行管理咨询 ,选择适合企业的经营管理模式 ,并将其融入系统中 ,建立企业的集成化信息系统的设想。并以上海精艺纺织制品厂为实例 ,介绍了基于B/S架构的企业集成化信息系统的整体框架     

基于蕴涵的区间值直觉模糊粗糙集

提出一种基于区间值直觉模糊蕴涵的区间值直觉模糊粗糙集模型.首先,介绍了区间值直觉模糊集、区间值直觉模糊关系和区间值直觉模糊逻辑算子的概念;然后,利用区间值直觉模糊三角模和区间值直觉模糊蕴涵,在区间值直觉模糊近似空间中定义了区间值直觉模糊集的上近似和下近似;最后,给出并证明了这些近似算子的一些性质.     

Imperfect Evolutionary Systems

In this paper, we propose a change from a perfect paradigm to an imperfect paradigm in evolving intelligent systems. An imperfect evolutionary system (IES) is introduced as a new approach in an attempt to solve the problem of an intelligent system adapting to new challenges from its imperfect environment, with an emphasis on the incompleteness and continuity of intelligence. We define an IES as a system where intelligent individuals optimize their own utility, with the available resources, while adapting themselves to the new challenges from an evolving and imperfect environment. An individual and social learning paradigm (ISP) is presented as a general framework for developing IESs. A practical implementation of the ISP framework, an imperfect evolutionary market, is described. Through experimentation, we demonstrate the absorption of new information from an imperfect environment by artificial stock traders and the dissemination of new knowledge within an imperfect evolutionary market. Parameter sensitivity of the ISP framework is also studied by employing different levels of individual and social learning