热送热装的实践

介绍了渐钢热送热装的基本工艺路线和４个发展阶段;分析了热送热装在降低企业加热炉综合燃耗、减少重油消耗、减少中间坯库存等方面的作用;阐述了企业开展热送热装与促进企业工艺和产品结构优化之间的关系,并结合目前热送热装工作存在的问题,提出了今后研究和工作的方向。     

唐钢棒材厂热送热装工艺探讨

根据唐山钢铁公司生产实际 ,在试验的基础上 ,提出了连铸坯热送热装的保证措施 ,摸索出了棒材厂热送热装的工艺模式。     

南钢热装生产现状与增长潜力分析

介绍近几年南钢热送热装工作开展情况，对取得的经济效益和未来热送热装增长潜力进行了初步分析。     

板坯热送热装工艺的应用

韶钢第二轧钢厂于1996年3月开始采用板坯热送热装工艺,取得了明显效果。本文较全面地介绍了该工艺方案在韶钢三轧厂的提出、确定及应用情况。随着韶钢中板改造工程的完成,板坯热送热装工艺将发挥更大的作用。     

棒线材连铸坯热送热装生产能力匹配和铸坯质量的探讨

从棒、线材生产连铸坯热送热装的模式,炼钢、连铸与轧机生产能力的匹配及热送热装中连铸坯的质量等方面探讨了热送热装中值得注意的几个问题和基本思路。     

梅山板坯热送热装初探

介绍了板坯热送热装技术,对梅山板坯传搁温降及节能、提高产量、减少氧化铁皮等技术经济效益进行了分析和探讨,对梅山热送热装的现状,存在的问题进行分析并提出了解决措施。     

热送热装节能效果评价

制定了连铸坯热送热装节能效果评价指标及评价方法，并应用此评价方法对某企业热送热装工作、节能效果和节能潜力进行了分析。     

优质合金钢连铸坯热装的热脆

阐述了优质钢及合金钢连铸坯热装时产生热脆的机理及解决连铸坯热送热装时钢的热脆的途径。     

连铸板坯热送热装的技术调研

本文综述了连铸板坯热送热装和直接轧制工艺在国内外的现状和发展趋势，工结合公司七厂实行热送热装工艺提出了一些参考意见。     

梅钢热装热送工艺

板坯热装热送工艺不仅可以降低能耗,缩短产品生产周期,而且能改善产品质量,降低生产成本。目前,热装比已经纳入国家清洁生产指标中,介绍了梅钢公司热装热送工艺技术的分类及发展情况,及其在节能降耗方面带来的经济效益。     

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.