元模型存储测试的设计与实现

测试元模型在模型驱动的测试中居于核心地位,在测试过程中保证测试元模型能够被正确地存储与读取是非常重要的。借助于JUnit这一通用测试框架,对测试元模型的存储与读取功能进行了单元测试。在明确测试需求的基础上,提出了测试用例的设计方法与测试结果的判定原则,并结合实例进行了说明。最后讨论了测试的具体实现和相应的测试结果。     

机械工程测试技术与机械设备故障诊断课程CAI教学系统初探

文章所述的ＣＡＩ教学系统是基于ＷＩＮＤＯＥＳ９５／９８平台研制开发的,完全采用可视化编程语言编制,具有良好的人机界面,它把机械工程测试与机械设备邦联诊断的基本理论、方式手段在微机这一现代化辅助教学工具上加以展示,具有形象、准确、逼真、操作方便灵活等诸多特征。     

电力系统应用软件小组测试过程

软件质量是软件的生命,软件测试是保证软件质量的重要手段。提高软件测试过程的质量则可以减少测试费用,保证测试的有效性。结合对某电力系统应用软件的第三方系统测试,说明软件测试过程的基本方法与实施过程。     

对分课堂教学模式在传感器课程中的应用研究

对分课堂教学模式是为解决当前高校课堂教学问题与困境而提出的中国原创教学模式[1]。文章以传感器课程为例进行实践,将对分课堂教学模式用于传感器课程课堂教学。介绍课堂教学设计及对分易教学平台的应用,关注学生学习的阶段性成果,对达成情况进行实时评价和反馈。     

Comparison of visual,automatic and semiautomatic methods to determine ventilatory indices in 50 to 60 years old adults

ABSTRACT

The aim of this study was to compare different methods of detecting ventilatory indices (VI) and to investigate the impact of cardiorespiratory fitness (CRF) level on VI detection. Fifty females and fifty males completed a graded exercise test until volitional exhaustion with continuous gas-exchange measurement. The first and second ventilatory indices (VI-1, VI-2) were detected through different single automatic methods and through a semiautomatic method which combines visual and automatic detection methods. Additionally, the VIs were detected visually by two experts which served as the study specific gold standard. When comparing the semiautomatic method at VI-1 (intraclass correlation coefficients (ICC) 0.88 [0.81, 0.92], Bland-Altman bias ± limits of agreement (LoA) 55 ± 334 ml O₂ · min^?1) and VI-2 (ICC 0.97 [0.96, 0.98], LoA 1 ± 268 ml O₂ · min^?1) to the visually detected VI, high levels of agreements and no significant differences were found. This was not the case for any of the other automatic methods. Additionally, we couldn’t find any relevant differences regarding the CRF level.

We therefore concluded that the semiautomatic detection method should be used for VI detection, as results are more accurate than in any of the single-automatic methods.

Abbreviations: CPET: cardiopulmonary exercise test; CRF: Cardiorespiratory fitness; VO_2peak: peak oxygen uptake; VI-1: first ventilatory indices; VI-2: second ventilatory indices; LoA: Bland-Altman bias ± limits of agreement; ICC: intraclass correlation coefficient.     

网络考试系统的安全性研究

介绍了自行开发、基于B/S模式的网络考试系统的有效功能设计部分，详细阐述系统中若干安全     

19JA万能工具显微镜纵向滑板移动直线度超差的检校与修理

万能工具显微镜是精密零件精度检定的常用仪器。由于该仪器的精度高，维修与检定需要专用设备，这给一般用户的设备维护带来一定的困难，本介绍一种简单易行的检修方法，在具体的实践中收到了良好的效果，具有一定的技术应用价值。     

新课改对考试异化的校正

长期以来,社会各界密切关注考试的发展和改革,第八次新课改掀取了考试改革的又一次新浪潮。在此种背景之下,在描述对考试与考试制度的社会混淆入手的同时,分析此种误读的社会原因,从而试图运用新课改这一契机对考试制度进行技术改革,赋予考试的本质回归,并呼吁社会从制度、法律和观念上对新课改下考试制度的改革给予积极支持。