天铁热力风机升级改造方案设计

通过对天铁集团高炉现状、风机现状的分析,提出了对热力厂风机升级改造的规划,确定了实施方案.该方案实施后将彻底改变风机渐进式改造的现象,使新高炉的备用机组发挥更大的作用,可增加现有高炉的风压、风量,使现有高炉的产量、冶炼强度进一步提高.     

冶炼平车移动DP总线编码器的应用

介绍了在铁合金电炉控制系统的改造中应用移动DP从站的实践,对铁合金电炉控制领域的开发及维护具有一定的借鉴作用.     

强化知识管理提高企业的应变与创新能力

处于相同行业结构和机会的企业存在着很大差别.知识管理作为作管理创新的一种成果,面对知识时代更加激烈的市场竞争和经营环境的更为不确定性,知识管理在结合企业的具体发展情况下,将为企业的发展注入新的活力.     

职业教育发展的政府失灵与市场调节

职业教育的发展,主要是在市场和政府的相互调节下运行的.但完全的政府调节不利于职业教育的健康发展,完全政府调节下的职业教育会出现政府失灵现象,因而,市场的无形调节是非常重要的.市场调节主要包括人才需求、利益导向、人事制度等方面的调节.     

浅谈我国有色金属行业的技术创新发展与对策研究

在分析我国有色金属行业现状的基础上,指出随着国际贸易的不断加深,我国有色金属发展中的技术落后、设备陈旧等问题日益突出,使整个行业的发展受到严重制约.提出技术创新是促进我国有色金属行业持续发展的关键,并对现有问题的根源及解决办法进行了初步探讨.     

浅谈黄金矿山企业的绩效考核管理

绩效考核是企业管理的重要组成部分.文中通过理论与实践的结合,阐述了黄金矿山企业绩效考核管理体系的建立、实施以及绩效考核应注意的问题.     

考虑辐射影响的隔热纤维体的热导率分形模

根据纤维体内部分形结构特点,建立了计及温度影响的隔热纤维体的热导率分形模型.通过对硅酸铝纤维SEM图像的处理,得到了不同密度下硅酸铝纤维的孔隙面积和孔隙通道曲线的分形维数,并据此计算了硅酸铝纤维的热导率.实验结果验证了本文分形热导率模型的正确性.     

减轻钒铁生产中炉底烧结的试验研究

铝热法冶炼钒铁过程中,炉底被烧结,产生含钒烧结渣.烧结渣中含有大量的钒,从而造成钒的损失,降低了钒的回收率,增加了生产成本.本试验通过对炉底打结材料和冶炼布料方式的优化,大大改善了炉底烧结状况,减少了含钒烧结渣的产出量,同时烧结渣中钒的含量也大幅度降低,从而减少了钒的流失,钒的回收率提高0.5%以上.     

包钢炼铁厂企业信息系统

介绍了包钢炼铁厂企业信息系统的发展概况、组成及覆盖范围,网络的功能和软件开发过程,详细说明了各子系统的作用,对网络应用的效益做了评估.     

强化改进措施——确保质量管理体系的绩效

面对竞争日趋激烈的设计市场,企业如何立于不败之地,就要求我们的企业改进原有的管理模式.ISO9000作为国际化标准组织至今为止颁布的唯一一个质量管理性标准,一个先进的管理方法.它的应用会极大地提升管理水平和管理力度,尤其现阶段设计市场面临着严峻的考验,国际化的管理体系的建设更是尤为重要,以先进的理念促进企业发展.     

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。     

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.     

Comparison of the results of surgical and conservative treatment of fractures of the diaphysis of the tibia

In this paper is treated the fundamental problematic of the fracture of the diaphysis of the tibia and the therapeutic results after the conservative and operative treatment are confronted. Among 518 patients with 433 open fractures and 35 with closed fractures of the diaphysis of the tibia, successful treatment of more 2/3 was obtained in the period from 1968 to 1972. Following our casuistics and literature, whose results are similar, we find out that the average total treatment of the osteosynthesis of the fracture of the diaphysis was shortened for 2,5 months depending upon the type and the localisation of the fracture. Apolied methods of the operative and conservative and conservative treatment in relation to the velocity of the medical cure as well as to the extreme anatomical-functional results are analised. We noticed that osteosynthesis, made by the intermedullary nail and the extension of the canals or by a small AO table, by the achieved stability makes conditions of immediate motions and an early rehabilitation. Because of that it gives the best functional results.