关于提高软件质量方法的探讨

为提高计算机软件质置、保证软件安全性和准确地评估软件质量。运用目标分析最优指标法。分析并建立了软件质量的层次评价模型,得出了量化的质量评价值。     

提高 Windows NT的性能

本文从Windows NT内存管理，服务和注册表修改的角度分析了提高Windows NT性能的可行性和具体的实现方法。     

提高数字图书馆性能的问题探讨

文章针对数字图书馆系统性能改善的问题进行探讨,介绍了数字图书馆的当前形势和相关知识;分析了影响数字图书馆系统性能的主要因素;讲述了解决数字图书馆系统性能的关键点;并提出了改善数字图书馆系统性能的主要方法.     

浅谈利用PB的INSTALLSHIELD制作安装盘

介绍了如何利用PB提供的INSTALLSHIELD将完成的应用程序制成安装盘，并详细介绍了如何根据实际情况对细节进行相应的编程。     

主动网络对分布式应用性能的提高

随着计算机技术的发展和网络的推广，分布式应用成为发展的趋势.针对主动协议对分布式应用性能的提高进行探讨，从而提出对cache等主动协议的要求，最后将介绍以较小空间获得高性能的自组织广域网cache协议.     

声音表现力的艺术展现

在声音技巧达到一定的高度后，如何再提高声音的表现力是一个重要的课题。人们常常在声音的训练做文章，事倍功半，效果不佳。其实，问题的症结不是声音技巧不高，而是演唱者的综合素质和文化修养不高，因而导致表现力受到限制。提高声音表现力的关键在于加强声音之外的功夫训练。     

Improving Retail Sales Performance by Integrating HPT with Marketing Strategies

In order to accomplish organizational goals within constraints, marketers need to develop and implement marketing strategies effectively and efficiently. Trainers equipped with human performance technology (HPT) skills and knowledge may contribute substantially to strategy development and implementation and eventually contribute to organizational success. In this article, we demonstrate how HPT improved retail sales performance in an organization in the Chinese telecom industry. The outcomes highlight the benefits of integrating HPT with marketing strategies and the importance of forming partnerships between training staff and marketing professionals.     

PB环境下利用ICMP函数实现网络连通测试

常用的网络测试命令Ping需要在GUI和命令提示符界面间进行切换,导致用户操作不便,同时也影响了软件界面的一致性,本文提出了PowerBuilder环境下使用ICMP函数编程在Windows界面下实现Ping功能的一种方法,给出了功能实现的程序示例.     

Improving the Fatigue Performance of the Welded Joints of Ultra-Fine Grain Steel by Ultrasonic Peening

Contrast tests were carried out to study the fatigue performance of the butt joints treated by ultrasonic peening, aiming at the improvement of ultrasonic peening treatment(UPT) on welded joints of a new material. The material is a new generation of fine grain and high purity SS400 steel that has the same ingredients as the traditional low carbon steel. The specimens are in two different states:welded and ultrasonic peening conditions. The corresponding fatigue testing data were analyzed according to the regulation of the statistical method for fatigue life of the welded joints established by International Institute of Welding(IIW). Welding residual stress was considered in two different ways: the constant stress ratio R = 0.5 and the Ohta method. The nominalstress-number (σ-N) curves were corrected because of the different plate thickness compared to the standard and because there was no mismatch or angular deformation. The results indicated that: 1 ) Compared with the welded specimens, when the stress range was 200 MPa, the fatigue life of the SS400 steel specimens treated by ultrasonic peening is prolonged by over 58 times, and the fatigue strength FAT corresponding to 106 cycles is increased by about 66％; 2) As for the SS400 butt joint ( single side welding double sides molding) , after being treated by UPT, the nominal S-N curve (m = 10) of FAT 100 MPa(R =0.5) should be used for fatigue design. The standard S-N curves of FAT 100 MPa (R = 0.5, m = 10) could be used for fatigue design of the SS400 steel butt joints treated by ultrasonic peening.     

应用SMIL和网格技术增强远程播出平台的性能

本文以清华大学远程播出平台为例,分析和探讨如何应用SMIL和网格技术促进播出平台的交互性、表现性,实现分布式存储,以及提高传输能力。     

丙烯酰胺对硅酸盐水泥性能的影响

向硅酸盐水泥中添加丙烯酰胺,利用水泥水化的内部环境促使丙烯酰胺聚合.与水泥水化产物结合的聚丙烯酰胺能在硅酸盐水泥中形成稳固的网络结构,起到改善水泥石性能的作用.通过实验发现,在硅酸盐水泥中掺加丙烯酰胺的量为2%时,水泥石的抗压强度提高了近20%,其内部结构也发生了变化,氢氧化钙的含量增加,絮状水化硅酸钙的含量明显减少.     

长笛演奏技能提升策略分析

器乐演奏的水平决定了作品所能达到的艺术效果,演奏者为了作品艺术效果的呈现会努力提升自己的演奏技能,演奏技能的提升对丰富作品的音乐表现力也有很大帮助。本文先从长笛演奏技能培养的相关因素入手,并对长笛演奏的基本功练习及在练习中应把握的准则做了深入分析,对提高长笛演奏技能的策略进行了分析。     

橡胶改性水泥砂浆的导热性能研究

文章对橡胶水泥砂浆的隔热性能进行了研究,结果表明:橡胶的粒度和掺量、砂浆的水灰比、试样的养护方式等因素都对其隔热性能产生了影响.加入橡胶后水泥砂浆的导热系数会减少,其中以混合胶粉的改性效果最好:其导热系数较其他三种粒度的胶粉砂浆为最低.随着橡胶掺量的增加,其隔热效果也在增强,导热系数越来越低,但当掺量值达到40%时,导热系数值为最少.砂浆的水灰比不同,其隔热效果也有很大区别,水灰比为0.5时,导热系数最低.     

水泥高效减水剂对快固化水泥刨花板性能的影响

研究3种不同水泥高效减水剂的不同添加量对水泥刨花板性能的影响，并通过测其密度、含水率、吸水厚度膨胀率、静曲强度、弹性模量、平面抗拉强度等进行对比研究。研究结果表明：对于12mm板，水泥高效减水剂对水泥刨花板的性能影响不显著。对于20mm板，交互作用时对密度影响显著。减水剂不同百分比对弹性模量影响显著。对其余性能影响不显著。     

变速积分PID控制在磁悬浮轴承控制中的应用和改进

通过分析磁悬浮轴承控制系统对积分环节的要求,针对变速积分PID控制器在磁悬浮轴承控制中控制结构转换引起干扰的问题,应用负指数函数的特性,重新设计积分系数函数。并针对磁悬浮轴承系统转子起始位置的不确定性,在积分系数函数的指数部分加入了相对误差的变化率,从而达到了增强控制器的适应性的目的。实验证明,改进的变速积分PID控制器具有较好控制性能和对转子初始位置的适应性。应用16极电磁铁径向轴承,实现转子的径向稳定悬浮。     

一种改进局域网性能的方法

影响网络性能的主要因素有：服务器性能，线路质量，接口设备和冲突解决机制、冲突问题尤为突出。要减少冲突，就应减少网络线路长度，减少在同一总线上的设备数量。     

浅析水泥新标准与质量提高之途径

我国GBl77—85水泥标准已停止使用，并全面实施GB／T17671—99《水泥胶砂强度检验方法(ISO法)》及六大通用水泥新标准。为适应新标准，通过对新旧水泥标准的对比分析，针对不同点，提出提高水泥质量的途径。     

Improving Biology Performance with Workshop Groups

This 2-year quasi-experiment evaluated the effect of peer-led workshop groups on performance of minority and majority undergraduate biology students. The workshop intervention used was modeled after a program pioneered by Treisman (1992). Majority volunteers randomly assigned to workshops (n = 61) performed significantly better than those assigned to the control group (n = 60, p < 0.05) without spending more time studying. Workshop minority students (n = 25) showed a pattern of increasing exam performance in comparison to historic control minority students (n = 21), who showed a decreasing pattern (p < 0.05). Volunteers (n = 121) initially reported that biology was more interesting and more important to their futures than to nonvolunteers' (n = 435, p < 0.05). Volunteers also reported higher levels of anxiety related to class performance (p < 0.05). The relationship of anxiety to performance was moderated by volunteer status. Performance of volunteers was negatively associated with self-reported anxiety (r = –0.41, p < 0.01). Performance of nonvolunteers was unrelated to self-reported anxiety (r = –0.02). Results suggest elevated anxiety related to class performance may increase willingness to participate in activities such as workshop interventions. In addition, students who volunteer for interventions such as workshops may be at increased risk of performance decrements associated with anxiety. Even so, workshop programs appear to be an effective way to promote excellence among both majority and minority students who volunteer to participate, despite the increased risk of underperformance associated with higher levels of anxiety.     

提高Asp.Net应用程序性能探析

如何提高应用程序的性能,是每个开发人员面临的一道难题.通过多年的实践与探索,提供了几种行之有效的解决方案,可供同行借鉴.