The rank distribution of the maximin in a random matrix

Let S be a set of tm distinct real numbers and R a random t × m matrix of these tm numbers with rows {r_i} and columns (c_i}. Define b = Max Min x. l≤i≤t x?r_i. Let c be the event Max Min x = Min Max x. l≤i≤t x?r_i l≤i≤m x?c_i. This paper derives the probability distribution of the rank of b in S, as well as the same distribution conditional on c.     

变字体之争为字种之辨——跳出繁简之争，走汉字整理之路

百年来对待汉字的态度经历了三个阶段：批判汉字，改造汉字，争论汉字，现在正进入第四个阶段：整理汉字。整理汉字的关键在于确立字种和字体的概念，并在实践上予以区分。     

Statistical Microcomputing—Like it is

A statistical software package is a collaborative effort between a program's authors and users. When statistical analysis took place exclusively on mainframe computers, the entire statistical community was served by some three to six major packages, which helped to ensure that program errors would be quickly uncovered and corrected. The current trend toward performing statistical analysis on microcomputers has resulted in an explosion of software of varying quality, with more than 200 packages for the IBM PC alone. Since all of these programs are competing for the same base of knowledgeable users, the number of sophisticated users per package is dramatically less than for mainframe packages; the net result is that problems in any particular package are more likely to go unnoticed and uncorrected. For example, the most widely used shareware package contains major errors that should cause it to be rejected out of hand, and three best-selling packages analyze unbalanced two-factor experiments using an approximate technique originally developed for hand calculation. Several strategies are offered to help author and user reveal any problems that might be present in their software.     

教育MIS维护的难点及管理对策

软件的维护是软件生存期持续时间较长、难度较大的一个重要阶段，教育ＭＩＳ的维护对教育管理有重大的作用．本文对教育ＭＩＳ维护的作用、难点进行总结性的阐述，并试图寻求一些解决教育ＭＩＳ维护困难的方法．     

邮政计算机网络风险防范与对策研究

阐述了邮政网络安全的内涵,阐述了该行业计算机网络风险的表现形式,并提出了相应的防范措施。     

关于笔画排序法的思考——兼论“杂合型汉字逆时针排序法”

在前人关于汉字笔画排序实践的基础上,提出了“杂合型汉字逆时针排序法”。该方法在一定程度上可化解当前杂合型汉字在排序上的混乱。而基于上述汉字排序法之上的词语排序法,在局部细节上贯彻字的排序原则的同时,在宏观整体上强调了“词长优先于次字笔画”的原则,在此基础上可以完整描述汉语字、词笔画排序的基本过程。     

教育信息化应走开源软件之路

随着教育信息化的深入发展,人们发现教育软件开发与应用已经成为制约教育信息化发展的症结。开源软件不但能够胜任教育信息化的需求,降低成本,而且能够随时根据教学需要自主改进程序、促进教学水平和学生创新能力的提高。最后就教育信息化推广使用开源软件提出几点建议。     

Some perspectives on statistical computing

The author argues for an increased emphasis on computing in the training of statisticians and in their professional practice. He describes some of the current technological challenges and demonstrates the importance for statisticians of becoming more active in computational aspects of their work and specifically in producing software for carrying out statistical procedures. Such a reorientation will require substantial changes in thinking, pedagogy and infrastructure; the author mentions some of the conditions required to achieve these goals.     

"世纪星"组态监控软件在低速升降装置中的应用研究

本文介绍了用组态软件开发的上位机与工业现场的PLC进行通信的控制系统，上位机不但完成现场的各种参数的实时显示，同时实现对工作现场的实时控制。     

紧凑式换热器的设计及综合性能分析软件

开发了包括板翅式(平直式、百页窗式及穿孔形、锯齿形)和主表面式(CC、CU及CW)等几十种型面的紧凑式换热器的设计、优化、校核、性能分析计算机辅助设计软件，该软件由Visual Basic 6．0编制，它具有良好的用户界面、人机对话功能及图形功能，并建立了包括工质物性、材料物性、70多种紧凑式换热器型面的结构参数以及无量纲摩擦因子f、传热因子j的数据库，该软件操作简便，运行稳定，可大大缩短换热器设计时间．