对石油钻井队正职干部的考核工作初探

科学考核和评价干部,是激励干部创先争优,推进企业绩效持续提升、不断跨越的有效途径,是加强干部队伍建设的基础性工作。胜利油田渤海钻井一公司党委对井队正职的分类量化考核进行大胆探索,制定了《钻井队正职干部综合考评规定(暂行)》,建立健全了井队正职干部能上能下的岗位管理机制,形成创先争优的良好氛围,推进"人才强企"战略实现跨越式发展。     

田湾核电厂核事故场外后果评价系统简介

本文介绍江苏田湾核电厂核事故场外后果评价系统(TW-NAOCAS)的概况。该系统软件包括操作管理子系统,数据传输、气象数据预处理与风场诊断模块,风场预测模块,大气弥散模块和剂量估算与干预措施模块。TW-NAOCAS系统能在30 min内给出评价区(近区为20×20 km2、空间分辨率500 m,远区为80×80 km2、、空间分辨率4 km)的风场以及设计基准事故(DBA)和超设计基准事故(BDBA)释放的69种核素在各网格的浓度、预期剂量、隐蔽与撤离的可避免剂量及其区域等信息。文中简述了主要物理模块的计算模式,最后介绍了风场预测、大气扩散与剂量估算三个模块及例题的测试结果。     

基于支持向量机的区域水安全预警模型及应用

基于支持向量机算法建立了区域水安全预警评价模型，根据水安全评价标准及其所属的评价等级值，随机内插生成序列来建立评价分类的样本集，并以松江区为例进行研究。研究结果表明基于SVM方法建立的模型简单，评价结果合理可行，可用于区域水安全预警评价。     

数据挖掘在桥梁健康监测智能评估系统中的应用

本文从桥梁健康监测智能评估系统和数据挖掘的概念出发,根据桥梁健康监测智能评估系统数据的特点说明了采用数据挖掘的必要性和优越性。然后探讨了数据挖掘的几种常用技术-人工神经网络、决策树、近邻方法、遗传算法在桥梁健康监测智能评估系统的使用。     

我国室内空气质量与评价方法研究进展

当前我国室内空气污染十分严重，只有通过室内空气质量评价才能够了解室内环境污染水平和对健康的可能影响，并针对性地提出控制措施。本文介绍了室内空气质量和室内空气污染的定义、由来、研究对象以及相关内容，综合分析了室内空气质量的影响因素，并比较了我国与国外室内环境研究的状况、IAQ标准、IAQ评价指标研究的进展情况，同时提出了我国IAQ对策。     

生命周期影响评价权重系数的确定方法探讨

随着生命周期评价应用的日益广泛，生命周期影响评价的完善也被提上日程。介绍了在影响评价中确定权重的三种方法，即专家法、层次分析法和线性回归方程法。为今后进行生命周期影响评价和研究提供了依据。     

在役电站锅炉汽包的疲劳寿命评价

本文在对我省锅炉汽包运行时间和用材的调查基础上，提出了对长期运行的汽包进行疲劳寿命评价的必要性，并根据有关规范给出了疲劳寿命计算的步骤。     

From toys to brain: Virtual reality applications in neuroscience

While many virtual reality (VR) applications have emerged in the areas of entertainment, education, military training, physical rehabilitation, and medicine, only recently have some research projects begun to test the possibility of using virtual environments (VEs) for research in neuroscience, neurosurgery and for the study and rehabilitation of human cognitive and functional activities. Virtual reality technology could have a strong impact on neuroscience. The key characteristic of VEs is the high level of control of the interaction with the tool without the constraints usually found in computer systems. VEs are highly flexible and programmable. They enable the therapist to present a wide variety of controlled stimuli and to measure and monitor a wide variety of responses made by the user. However, at this stage, a number of obstacles exist which have impeded the development of active research. These obstacles include problems with acquiring funding for an almost untested new treatment modality, the lack of reference standards, the non-interoperability of the VR systems and, last but not least, the relative lack of familiarity with the technology on the part of researchers in these fields.     

超超临界火电厂的生命周期评价

运用生命周期评价方法(LCA),对超超临界火电厂进行了环境影响分析,并与常规火电厂进行了比较。结果表明,超超临界火电厂的环境特性明显优于常规火电厂。     

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.