基于经济运行原则的最佳配电点位置的算法

针对在电气设计中"负荷中心"这一术语,提出应具有技术经济指标的最佳配电点的概念.通过对供电系统中各种负荷群进行的较为深入的分析,得出负荷群中最佳经济运行配电点的位置,除对称负荷群外,其余均离开了"负荷中心".通过对各种负荷的分析和计算,得出最佳经济运行配电点的求解方法,从而达到降低电能损耗和节约投资的目的.     

邯钢380 m2环冷机台车轮轴承改进

分析了邯钢380m2环冷机台车轮轴承的弊端,提出了改进方案,通过方案的实施,取得了良好的效果,创造了可观的经济效益。     

唐钢中型厂粗精轧机组负荷均衡优化

介绍的是在开轧温度一定的条件下,引入动态规划法进行负荷均衡优化计算,将一个多变量的优化计算问题转变成多阶段单变量的优化问题,通过调整粗、精轧机组各架轧机的压下量来实现粗、精轧机组轧制负荷的相对均衡。     

A Stress and Coping Model of Medication Adherence and Viral Load in HIV-Positive Men and Women on Highly Active Antiretroviral Therapy (HAART).

The authors tested a structural model that incorporated age, time since diagnosis, social support, coping, and negative mood as predictors of medication adherence and HIV viral load on 188 men and 134 women on highly active antiretroviral therapy (HAART). The authors used psychosocial latent factors formed from baseline measures to predict latent factors of adherence, as assessed by electronic monitoring and self-report, and viral load defined by indicators assessed over a 15-month period. Results from the model indicate that greater negative mood and lower social support are related to greater use of avoidance-oriented coping strategies. Use of these coping strategies by patients on HAART is related to poorer medication adherence and, subsequently, higher viral load. This model advances researchers' understanding of the contribution of psychosocial variables in predicting treatment adherence and disease progression in HIV-positive men and women. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Role of the Prefrontal Cortex in the Maintenance of Verbal Working Memory: An Event-Related fMRI Analysis.

Neuroimaging studies have been inconclusive in characterizing the role of the prefrontal cortex (PFC) for maintaining increasingly larger amounts of information in working memory (WM). To address this question, the authors collected event-related functional MRI data while participants performed an item-recognition task in which the number of to-be-remembered letters was parametrically modulated. During maintenance of information in WM, the dorsolateral and the ventrolateral PFC exhibited linearly increasing activation in response to increasing WM load. Prefrontal regions could not be distinguished from one another on the basis of load sensitivity, but the dorsolateral PFC had stronger functional connectivity with the parietal and motor cortex than the ventrolateral PFC. These results suggest an increasingly important role for the PFC in actively maintaining information as the amount of that information increases. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Look Here but Ignore What You See: Effects of Distractors at Fixation.

Distractor interference effects were compared between distractors in the periphery and those placed at fixation. In 6 experiments, the authors show that fixation distractors produce larger interference effects than peripheral distractors. However, the fixation distractor effects are modulated by perceptual load to the same extent as are peripheral distractor effects (Experiments 1 and 2). Experiment 3 showed that fixation distractors are harder to filter out than peripheral distractors. The larger distractor effects at fixation are not due to the cortical magnification of foveal stimuli (Experiments 4 and 5), nor can they be attributed to cuing by the fixation point (Experiment 2), the lower predictability or greater location certainty of fixation distractors (Experiment 5), or their being in a central position (Experiment 6). The authors suggest that preferential access to attention renders fixation distractors harder to ignore than peripheral distractors. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

中国近海海域环境放射性水平调查

总结中国在过去40年中对近海海域环境放射性的调查结果，介绍了中国近海海域中天然和人工放射性核素的水平，海洋生物对放射性核素的吸收与累积，以及海洋沉积物对放射性核素的吸附。     

夏热冬暖地区办公类建筑中BIN法应用的计算与分析

结合我国实际情况,依据BIN能耗分析负荷计算方法,以夏热冬暖地区某办公楼为例,建立了建筑物全年空调负荷特性模型;通过计算在不同负荷率N下对应的运行时间百分数K,绘制了负荷分布特性曲线图,并在全年负荷计算的基础上绘制出了空调系统负荷小时数图,从而为此类建筑进行能耗分析与评价、合理选择冷源提供参考依据.     

空调动态负荷计算软件开发

采用Visual C 6.0和Visual Fortran开发工具及面向对象的设计方法,探讨了开发空调动态负荷计算软件的方法.     

滚子链低噪声试验与研究

作者从噪声对人体与环境的危害入手,为降低链传动噪声,设计出了低噪声滚子链条.为研究低噪声滚子链降噪性能,特对同等规格普通滚子链与低噪声滚子链做噪声对比试验,并对试验结果进行了分析与评价.经权威噪声检测机构检测表明:低噪声滚子链较普通滚子链在中高速时降噪8～10dB.