我国钼制品生产现状及今后发展的几点建议

通过对我国钼制品加工企业的调查，介绍了我国钼制品加工企业的生产现状及存在问题。结合我国钼制品生产中的实际情况，提出了今后发展的几点建议。     

稀土钼制品的替代性及其应用

与纯钼制品相比，稀土钼制品具有更优越的性能，价格较低，同时也避免了钍元素的放射性污染，完全具有替代性而广泛应用于冶金，机械，石油，化工，国防，航空，电子等领域，本文着重介绍了稀土钼制品的生产工艺和良好的替代性，并对其应用前景进行了分析。     

烧结金属用耐蚀性优良的不锈钢粉

烧结金属用耐蚀性优良的不锈钢粉日本大同兴业公司制成了烧结制品用耐蚀性好的不锈钢粉。用这种粉末生产的烧结制品的耐蚀性与轧制不锈钢的相当。与轧制材料的切削加工相比，粉末压制品容易加工，适用于大规模生产。然而，由于粉末冶金制品在烧结过程中产生的气泡容易引起...     

国内钼制品生产及应用市场现状与展望

概述了近年国内钼制品的生产、应用，销售现状，并通过分析近几年钼及钼制品市场的浮动原因，对钼制品今后在冶金、玻璃、电子、喷涂、电光源等行业的应用开发作了展望     

液态模锻不锈钢制品研究

本文阐述了不锈钢制品液态模锻工艺，提出了锻模结构和模锻工艺参数，并对制品的组织结构和力学性能进行了分析。     

中国钼制品工业的现状,未来及建议

对我国钼制品工业现状，发展趋势作了阐述，并对２０００－２０１０年作了预测，还对我国钼制品工业发展提出了建议。     

中国钼制品工业的现状、未来及建议

对我国钼制品工业现状、发展趋势作了阐述，并对２０００～２０１０年作了预测，还对我国钼制品工业发展提出了建议。     

新型耐高温绝缘制品在冶金电炉上的应用

耐高温绝缘制品是冶金电炉、化工电炉中必不可少的关键配件。这类配件要求耐温度高、抗弧度强，阻燃性好、且有一定的抗热湿性，并能长期经受高温、高辐射的考验，能在明火焰中可靠使用。但长期以来，我国冶金电炉、化工电炉所用的绝缘制品因耐热等级低，各项性能指标差，影响了电炉的安全运行，但又找不到合适的绝缘制品替代。本文试就我国冶金电炉绝缘制品的现状及粉云母高温绝缘制品的开发、推广应用作一点探讨。１现有绝缘材料耐热等级分类见表１２我国冶金电炉绝缘制品的现状从我们收集到的样品来看，目前我国冶金电炉、化工电炉所用的…     

不同软质粘土对粘土质制品性能的影响

介绍了四种软质粘土对粘土制品性能的影响，实践证明，无论运用四种软质粘土的哪一种，都可以生产出合格的粘土制品。     

中国钼资源钼制品与市场动态

论述了中国钼资源和钼制品现状以及钼市场动态，阐明了中国钼资源的特点，介绍了中国钼制品产销概况，分析了１９９４年钼价上涨的原因和１９９５年钼市场动态。     

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.