华东电网联合反事故演习管理

电网事故具有突发性、快速性和灾难性.如何快速隔离故障、限制事故的扩大,恢复电网的正常运行,保证供电的可靠性,是电力调度人员、技术人员、安监人员研究的课题.反事故演习是解决这一课题直接、有效的方法,同时可以通过反事故演习提高调度人员的素质.详述了华东电网公司在联合反事故演习方面的管理方法,并展望了今后的发展和工作方向.     

西安电力交换网的建设与发展

文章分析了西安地区电力交换网的现状,提出了电力交换网的优化与改进方案以及基于VoIP平台的联合反事故演习系统建设方案。文章通过比较几种信令系统,阐述了采用Q信令组建电力交换网的优势;对行政交换机设备改造中,软交换平台的建立及应用做了说明。文章还对电力系统交换网络的发展提出具体建议。     

互联大电网的联合培训仿真研究

分析了大电网一体化仿真的必要性,在分析了大电网联合培训仿真现状的基础上提出了联合培训仿真系统的要求,给出了构建联合培训仿真系统的2种可行方案。给出了每种方案的关键点和总体方案,并讨论了2种方案的适用性。     

600MW火电机组仿真机的研制

结合西北地区首台采用虚拟DPU(VPU)技术开发的600 MW火电机组仿真机的研制,从技术特点、仿真范围、仿真机组成和功能等方面对仿真机作了介绍。目前该仿真机已在韩城第二发电有限责任公司投入使用。     

Long-term follow-up of physical activity behavior in older adults.

Objective: To examine the contribution of social-cognitive factors (self-efficacy and affect) in predicting long-term physical activity in a sample of older adults (N = 174). Design: A prospective design assessed physical activity and psychosocial variables at 2 and 5 years following a 6-month randomized, controlled exercise trial. Main Outcome Measures: The primary outcome variable was self-reported physical activity, with previous behavior, self-efficacy, and affect assessed as determinants of physical activity. Results: Covariance modeling analyses indicated that physical activity at Year 2 was the strongest predictor of physical activity at 5-year follow-up. Both self-efficacy and affect at Year 2 were also associated with physical activity at Year 5, as was original treatment condition. Variables accounted for 35% of the variance in Year 5 activity. Conclusion: Older adults with higher levels of physical activity, more positive affect, and higher self-efficacy at Year 2 were more likely to continue to be active at Year 5. This study is one of the longest follow-ups of exercise behavior in older adults and has implications for structuring environments to maximize the maintenance of physical activity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Implementation intentions, occupational stress, and the exercise intention-behavior relationship.

Many individuals intend to exercise, but fail to link this intention to behavior. The present study examined the impact of an implementation intention intervention (i.e., instructions to form specific if-then plans) on an exercise intention-behavior relationship among working adults who varied in reported occupational stress levels. Results indicated that implementation intentions backfired, such that participants who did not form an implementation intention exercised significantly more than participants who formed an implementation intention. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

《机械制图》作业网络绘图工具开发研究

结合机械制图课网络教学特点，利用ActiveX网络功能开发了两套机制作业网上绘图教学软件。该软件实用性强，自带智能化作业批改功能，为机械制图课远程教学中网络绘图工具的开发提供了新的思路。     

Perceived Facial Expressions of Emotion as Motivational Incentives: Evidence From a Differential Implicit Learning Paradigm.

Participants (N = 216) were administered a differential implicit learning task during which they were trained and tested on 3 maximally distinct 2nd-order visuomotor sequences, with sequence color serving as discriminative stimulus. During training, 1 sequence each was followed by an emotional face, a neutral face, and no face, using backward masking. Emotion (joy, surprise, anger), face gender, and exposure duration (12 ms, 209 ms) were varied between participants; implicit motives were assessed with a picture-story exercise. For power-motivated individuals, low-dominance facial expressions enhanced and high-dominance expressions impaired learning. For affiliation-motivated individuals, learning was impaired in the context of hostile faces. These findings did not depend on explicit learning of fixed sequences or on awareness of sequence-face contingencies. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

2004年山西中、北部电网联合反事故演习综述

分析总结了2 0 0 4年山西中、北部电网联合反事故演习,从中发现了目前电网在运行及检修安排上的一些问题;进而提出了运行调度人员在事故处理过程中,应采取的措施。     

Evaluation of performance and load in simulated rescue tasks for a novel design SCBA: effect of weight,volume and weight distribution

A self-contained breathing apparatus (SCBA) with an innovative rucksack shape that provides a better distribution of its weight over the middle and lower parts of the back (device C: 6l, 13.7 kg) was compared with two conventional SCBA which differed from each other in volume and weight (A: 6l, 15 kg, B: 6.8l, 11.7 kg). Twelve fire-fighters (27-49 yr) performed three exercises while using the three SCBA in a systematically permuted sequence. The exercises consisted of simulated rescue work under natural climatic conditions in a dwelling on the second floor and several typical elements of severe fire-fighting actions. Duration, heart rate, breathing frequency, rectal temperature, and sweat loss were recorded. Perceived exertion was rated and the carrying features of the SCBA were subjectively evaluated. The exercise was executed faster with the rucksack device, heart rates were then lower and the carrying features were evaluated as better. Thus, the weight of the SCBA was shown to be less important than its distribution.