运动控制技术在数控机床I/O中的应用

数控机床是采用数字化代码程序控制,其控制核心是数控系统,而PLC是数控系统的一个重要组成部分,它是连接数控系统与机床的桥梁。通过I/O口的监视,反映数控机床的故障原因并对故障进行排除是故障诊断的一种非常有效的方法。传统的数控机床I/O控制可通过PLC程序进行,本文以固高科技公司的GT系列运动控制器为平台,采用高级语言VC,以实例的方式完成数控输入输出程序的编制和调试。     

VC++实现Excel操作自动化的方法研究与应用

生成报表和打印输出是数据处理中经常需要完成的功能,也是在VC编程过程中比较麻烦的地方。文章研究了VC实现Excel操作自动化的方法,并详细介绍了一个常用报表的实现过程。用此方法可以实现一些复杂报表的处理。     

基于AutoCAD的二维建模研究

复杂地质体的二维建模,一般采用自下而上依次建立点、线、面的方法,其中面的定义需要手工完成,费时费力,针对ADINA二维建模的不足,用VC编写了AutoCAD To Adina平面建模程序,实现了点、线、面的自动定义,大大缩短了ADINA二维建模的周期,节省了体力,通过实例表明,该方法具有较大的实用价值。     

优惠性货物原产地规则中的CTC、VC及TP标准比较研究

实质性改变标准是优惠性货物原产地规则的核心,CTC、VC、TP是实质性改变标准的具体化。三种标准各有利弊,各自的限制性程度不同,其中CTC限制性最弱,TP限制性最强。在国际实践中,三种标准得到了不同程度的运用,其中CTC、VC标准运用最广泛,但基本都是与其他两种标准结合使用,TP单独运用极少。三种标准在对区域经济产生诸多保护、促进效应的同时也产生了一定的限制、扭曲和阻碍等起到作用。中国在制定具体标准时,应充分考虑三种标准在优缺点、限制性程度、国际运用、实施效应等方面的差异。     

波浪测量分析处理系统及其应用

研究水力学中的波浪问题,对于分析水工建筑物泄洪消能对电站尾水的波动、下游水面的波动、通航水流条件等具有重要意义.开发一套由软、硬件组成的波高数据自动采集分析系统,并将其成功应用于乌江银盘水电站水力学整体模型.该系统方便、迅速、操作简便,可满足科研生产需要.由于采用面向对象方法开发,进一步开发功能十分方便.对波高传感器的测量原理、波高测量统计分析原理、系统软件设计及工程应用作了详细介绍.     

Individualism–collectivism as predictors of BPO employee attitudes toward union membership in India

Drawing on data from a survey of 342 employees from three BPO organizations in Mumbai (India), this study examined whether cultural variables of individual cultural orientation and organizational culture, and their interaction were predictive of employees’ attitudes toward union membership in BPO organizations in India where unionization has hitherto not taken place. Using regression analysis, the researcher found that over and above the effects of demographic and job-related variable, and work stress and job satisfaction, horizontal individualism could predict union attitudes significantly and negatively whereas vertical individualism and collectivism could predict the attitudes significantly and positively. Similarly, organizational collectivism could predict employees’ attitudes toward union membership significantly and negatively. Using the univariate analysis of variance, the researcher found that the contrast between personal value and organizational culture of an individualist working in a collectivistic organizational culture or collectivist working in an individualistic culture are found to have stronger influence on union attitudes compared to the congruence of an individualist working in an individualistic culture or collectivist working in a collectivistic culture. The results and implications of findings are discussed in the paper with reference to the literature on role of cultural and attitudinal variables in relation to organizational outcomes like union membership.