Web-based Assessment and Test Analyses (WATA) system: development and evaluation

This study introduces the development of a Web‐based assessment system, the Web‐based Assessment and Test Analyses (WATA) system, and examines its impacts on teacher education. The WATA system is a follow‐on system, which applies the Triple‐A Model (assembling, administering, and appraising). Its functions include (1) an engine for teachers to administer and manage testing, (2) an engine for students to apply tests, and (3) an engine for generating test results and analyses for teachers. Two studies were undertaken to assess the usefulness and potential benefits of the WATA system for teacher education. In the first study, 47 in‐service teachers were asked to assess the functions of the WATA system. The results indicated that they were satisfied with the Triple‐A Model of the WATA system. In the second study, 30 pre‐service teachers were required to use the WATA system during the teacher‐training program. After 4 months of experience in using the WATA system, the pre‐service teachers' perspectives of assessment have been changed significantly. The findings of these two studies might provide some guidance to help those who are interested in the development of Web‐based assessment and intend to infuse information technology into teacher education.     

Windows 2000终端技术的研究

Windows 2000终端是一项能降低用户“总体拥有成本”的技术，并且能为无法运行Windows 2000的计算机提供访问Windows桌面的能力。本文介绍了Windows 2000终端技术原理和Windows 2000终端网络架构，并论述了建立高效实用Windows 2000终端的方法。     

网络新应用-Windows 2000终端服务

终端服务是在Windows 2000 Server产品系列中提供的一种技术，用以在一个远端的Windows　2000　Server上执行应用程序或进行相应的管理工作。本文介绍了终端服务的具体实现模式、相应组件、许可证发放机制，并给出在具体环境中应用时对应用程序的优化策略。     

A vertex-first parametric algorithm for polyhedron blending

This paper enhances the conventional parametric algorithms for polyhedron blending, by strategically inverting the edges-first approach to vertex-first, so that matching the vertex blending surface (using a triangular or tensor product Bézier surface, or an S-patch) with the edge blending surfaces (generated by Hartmann method) becomes essentially easier. Based on a study of cross boundary derivatives (those of S-patches are deduced herein), G^g-continuity between all the above surfaces and the primary planar faces is achieved by a novel trick as a first step: assigning the vertex, some edge points and some face points to be the proper control points. This still leaves enough free parameters usable for changing the blending configuration. The new algorithm is illustrated with two practical examples involving miscellaneous vertices up to 6-edge convex–concave.     

论英语口语教学中的混合学习(英文)

近些年来,混合学习将传统的课堂面授教学和计算机辅助的多媒体语言教学结合起来,作为一种有效利用网络资源的学习方法,在国内外普遍受到重视。目前英语教学方面的研究表明,通过这种方法,学生用英语自我表达的意愿提高了,情景对话中的听力理解也同样得到改善。指出混合学习课程主要包括基于网络课件的示范对话、大量的自我练习视频和音频片段,这些片段需要学生进行两人一组或者多人一组练习和互评。前期和后期测试结果表明,从评估标准来看,大多数学生的英语口语方面的各项技能都得到改善。     

压力计辅助双封隔器验窜技术

介绍了XQ1井压力计辅助双封隔器验窜的全过程,该工艺是为解决常规封隔器验窜资料录取不完整而设计的,不但设计了记录地层情况的2支压力计,还有1支压力计专门验证封隔器的密封性,通过对比验封2个层位以及2封隔器间的3条压力曲线,提供了地层验窜的详实资料,地层窜槽与否一目了然,为科学决策提供了依据,避免了返工。     

Thermal effectiveness characteristics of low approach indirect evaporative cooling systems in buildings

Meteorological enthalpy analysis of temperate and maritime climates above latitude 45°N suggests that the water-side evaporative cooling technique has considerable unrealised potential with contemporary “high temperature” building cooling systems—such as chilled ceilings and displacement ventilation. As low approach conditions are the key to exploiting the cooling potential of the ambient air, thermal performance at such conditions needs to be investigated. To address the research issues, an industrial scale test rig, based on a low approach open cooling tower and plate heat exchanger and designed to maximise evaporative cooling potential, has been constructed.     

基于Windows操作系统的无盘网络技术

本文论述了基于Windows操作系统的无盘站网络技术原理和实现方法。     

滴西17井跨隔地层测试验窜分析

根据不同的井况和试油目的,试油井要选用不同的验窜方法。针对滴西17井的具体情况,选用跨隔地层测试方法,达到了预期的目的,为以后的相似情况提供了借鉴。     

计算机辅助绘图远程考核系统

介绍了Windows终端服务和ActiveX Automation的具体应用——计算机辅助绘图远程考核系统，并给出了系统的原理、网络构架和功能设计。该系统能使本地或远程的用户方便地进行计算机辅助绘图技能的测试，并当场获得考核成绩。