牛路岭电站20MW机组3号机改造技术分析

针对牛路岭水电站存在的主轴密封不严、空蚀、振动等问题,对3号机组进行了技术改造。本次改造主要对转轮、顶盖、底环、固定止漏环、主轴密封、导叶、控制环、尾水管直锥段等部件及其附属相关部件进行了优化设计。通过3号水轮机改造,将机组性能进一步优化,改造效果总体情况良好,提高了效率、空蚀和水力稳定性明显改善,使牛路岭电站的水轮机达到现代先进水平。     

基于WBAN的智能康复监测护理系统设计和实现

针对传统生理参数监测的不足,基于无线体域网（WBAN）设计并实现了用于康复训练的智能康复监测护理系统。本文首先根据人体生理信号检测原理检测人体的心电、皮肤电阻、脉搏和体温信号,然后通过Crossbow无线传感器网络平台将检测到的数据实时传输到上位机,最后在上位机监控软件上实现对患者的生理信号实时显示和监控。文中详细介绍了系统的软、硬件设计,并对实验结果进行了处理和分析,实验结果表明该系统能对患者的生理状态进行实时监测。     

电化学修复后钢筋疲劳性能试验研究

为了探明电化学修复对钢筋疲劳性能的影响,开展电化学除氯和双向电迁处理后钢筋的轴向拉伸疲劳试验. 基于断裂力学原理及断口微观形貌分析,揭示电化学修复技术引起钢筋疲劳性能变化的机理. 结果表明,电化学除氯会引起钢筋疲劳裂纹门槛值的减小及疲劳弹性模量的退化,宏观表现为钢筋疲劳寿命减小;电化学除氯后钢筋疲劳裂纹起源于钢中白点,裂纹扩展区疲劳辉纹间距增大,瞬断区韧窝变小变浅. 掺入阻锈剂的双向电迁方法对钢筋疲劳性能的负面影响较小,双向电迁修复后钢筋的疲劳断口微观形貌相对于普通钢筋未见明显变化.     

昆明湖水质变化分析及污染控制对策

颐和园昆明湖是北京重要的水利设施、生物多样性保护基地和旅游娱乐基地,具有重要而又独特的环境及美学功能。但近几年来,昆明湖水质开始恶化,主要体现在其富营养化程度的逐步加大。对昆明湖的水质变化及其原因进行了分析,并提出了其水质改善和保护对策:改善补水水源水质和进行湖泊生态恢复工程。     

Introduction to the special issue on program evaluation.

It is argued that psychologists, through activities related to program evaluation, can make contributions to at least four pressing issues: participation in and formulation of public policy regarding rehabilitation; clarification of the nature and scope of rehabilitation itself; practice of theory-driven evaluation; and the cumulation of knowledge through meta-analytic methods. Papers in the Special Issue are briefly introduced and described. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Review of Home and Hospital Psychiatric Treatment.

Reviews the book, Home and Hospital Psychiatric Treatment by Fred R. Fenton, Lise Tessier, E. L. Struening, Frank A. Smith and Constance Benoit (1982). From 1972 to 1976, Fenton and his associates were involved in a study at the Montreal General Hospital's Department of Psychiatry that sought to compare a home-based psychiatric treatment program with a more traditional inpatient service. Their monograph presents the rationale for the study, describes the methodology employed, presents their findings and conclusions and discusses issues related to home-based treatment programs and their evaluation. From a methodological point of view, the study is not without its flaws. It does however represent an example of good research in a difficult (real world) setting. The study is well documented and findings are presented in a logical and comprehensible fashion. Its length and detail make it suitable for use as a case study in a class dealing with methodology or evaluation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Factor analysis of the Attitudes Toward Disabled Persons Scale—Form A.

Factor analysis of the attitudes of 133 rehabilitation and agency practitioners and trainees yielded four major factors: Coping-Succumbing, Emotional Need-Emotional Satisfaction, Sensitivity-Self-Consciousness, and Inferred Morality. The findings of this study are compared and contrasted with findings using similar instruments with different populations so as to explore psychometric issues. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

新安江水力发电厂增容改造工程设计

从电厂的水能和设备运行的现状,阐明了该工程进行增容改造的迫切性,以及经济财务分析的可行性,全面说明了电厂进行电气主接线、设备进行改造的方案.     

台州城市核心区内河水环境整治措施分析

在水环境监测结果分析与污染源调查的基础上,对台州城市核心区内河水环境状况恶化的原因进行了初步分析。从控制污染源和修复水环境两个方面入手,提出了控制污染源、加强岸线管理等措施。并从物理、化学、生物、生态等方面论述了进一步改善内河水环境的整治措施,主要包括增容、曝气增氧、生物治理、微生物治理、河水循环处理等技术。