浅析电网规划协调性

在全国电网快速发展的进程中，面对电网规划建设中越来越突出的用地和空间的矛盾，实现电网规划与城市规划两个规划的相互协调、有机结合，已经成为加快电网建设、推进电网快速发展的当务之急。笔者结合多年来电网规划工作，就如何加强电网规划工作管理，谈谈如何实现电网规划与城市总体规划的有效衔接。     

电网“十一五”规划建设后评价研究

本文根据电网“十一五”规划建设的特点，指出了电网建设后评价的必要性，提出了电网“十一五”建设后评价基本内容，构建了电网建设后评价指标体系，并提出了电网“十一五”建设后评价的方法。本文为电网“十一五”建设后评价提出了一个完整的理论框架，为今后电网建设的后评价明确了思路和方法。     

水钢电网铁磁谐振故障与单相接地故障的判别与处理

本文根据水钢电网的运行情况，对电网电压发生异常现象绝缘监视装置发出“接地”信号时的正确判别，以及怎样对中性点不接地电网的单相接地故障进行判别，提出处理和消除措施，以缩短电网故障时间，确保电网的安全运行。     

武钢110kV电网整定计算新方法的应用

根据110kV电网的变化以及计算机技术的发展，介绍110kV电网计算机整定计算的新方法，并针对武钢电网的特点，把该方法成功应用于武钢110kV电网继电保护整定计算工作中，以提高继电保护定值的准确性和整定效率，保证武钢电网保护可靠动作。     

中长期电力负荷预测方法研究及应用

电力负荷预测是电网规划的基础，对规划的质量起关键作用。首先论述了电力负荷预测的概念和负荷预测中长期预测常用的几种方法，并用这些方法对某省电网20l0一2015年进行了负荷预测，最后得出预测结果，可为某省电网未来的电网规划提供参考。     

调度自动化技术在智能电网中的应用与发展

探索一条优质高效、安全可靠的新的电力发展道路，使我国电力事业尽快步入了智能电网发展的轨道，有着极为重要的现实意义。因此，作为电网调度工作者我们应该自觉认识与处理新形势下电网调度出现的新问题，及时转变思想观念，积极应对新的严峻挑战，实现我国电网调度系统新的跨越式发展。     

单相工频感应炉与电源的连接

有色加工行业中，单相工频感应电炉应用日趋广泛。对电网页言，单相负荷将使电网质量下降，从而影响电网中的其他用户。为保证电网捏，往往希望三相负荷尺量平衡，但由于工频感应炉这类单相负荷容量较大，用其他负荷难以使电网三相负荷平衡。为此，笔者在某有色金属加工厂感应炉的设计中采用了相平衡器装置，即由平衡电容器、平衡电抗器与经过补偿电炉按三角形接法接成了人为的三相负荷，再将此负荷接入电网，具有三相平衡负荷的性质，因此消除了单相工频炉所造成的影响。     

谐振过电压造成中性点不接地电网“虚接地”现象的分析

本文根据水钢电网的运行情况，对电网电压发生不平衡现象进行分析，以及怎样对中性点不接地电网的单相接地故障与出现的“虚接地”现象进行判断，提出处理和消除措施。     

冶金厂区电网外绝缘污闪分析及对策

莱钢冶金厂区电网外绝缘污闪的原因，是由于电网处于冶金厂区污秽较严重的生产区域。分析了电网外绝缘污闪的条件，提出了抑制污闪的措施。     

我国变压器行业对取向硅钢的需求现状

一、我国电力行业的发展形势 近年来，我国持续加大对电力行业的投资力度，建成了规模庞大、结构合理的六大区域电网，初步实现了全国电力系统的顺利联网。“十一五”期间，全国电网建设总投资将超过1-3万亿元，其中，2008年全国完成电网建设与改造投资2884亿元，2009年将超过3000亿元。据国网公司报道：2008年，该公司完成电网建设与改造投资2475亿元，2009年计划完成2500亿元（国网公司占全国电网投资总额的80％以上，其余为南网公司）。     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of rates of infection of two methods of emergency ventricular drainage

The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.     

浅析《野草》的版画特征

鲁迅先生一生热爱美术作品,对版画中木刻兴趣尤甚.<野草>作为其"写心之作",亦呈现出一些与木刻版画一致的审美特征:一是具有木刻版画的色彩特征,多对比、多冷色,有阴郁的美感;二是具有木刻版画的力度特征,环境描写、人物刻画处处刀锋毕现,遒劲有力,有一种"力之美".     

四辊破碎机车刀架的改造

针对四辊破碎机车刀架车削中存在的几个问题,详细介绍了电动车刀架的结构和工作原理,建立主要设计参数的数学表达式,并进行适当的分析。改造后,这种电动车刀架运行平稳、可靠、方便、省力,取得了预期的效果。     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.