反渗透工艺对铜冶炼废水的回用处理

本文主要根据铜冶炼废水含盐量高、结垢倾向严重并含有重金属的水质特点,介绍了反渗透工艺及其预处理工艺进行回用处理,使其产水水质达标循环水补充水水质指标,直接回用于厂区循环水系统作补充水,并对其运行情况进行了总结分析。     

120 t转炉烟气除尘水系统特征及水处理技术的应用

介绍了转炉烟气除尘水浊循环系统工艺特征和水质特点，分析了系统中存在的强结垢倾向及其危害性。采用了具有创新性的水质处理技术。经过实际运行考核，达到了稳定生产、节能降耗、清洁循环水系统运行过程的效果。     

降低焦化水系统设备腐蚀

为了确保济钢化工厂循环水系统稳定运行,对循环水系统进行了改造,提高了系统水质,降低了水系统设备腐蚀。     

循环水水质稳定技术及其应用概况

简要介绍了水质稳定技术基础及其发展历程，分析了国内目前常用几种水稳技术及部分应用实例的效果，探讨了有色金属工业系统实施循环水水质稳定的潜在市场。研究开发现状及发展战略。     

污水回用处理技术在翼钢环保工作中的应用

介绍了酒钢集团翼城钢铁有限责任公司新水储备量、新水水质状况,污水回用处理前后循环水运行参数,分析了翼钢生产中存在的问题,阐述了在污水回用处理工艺、处理能力、处理后达到的水质指标、回用水用途及节水效果,循环水利用率变化、社会效益和经济效益等情况。     

适应高浓缩倍数循环水系统的水处理方案

天津钢管公司是引进国外先进设备的大型企业,主要生产大口径石油套管.公司的炼钢、轧管、管加工、热处理、168及采板,共计30余套循环水系统,其特点就是浓缩倍数偏低、水质较差,循环水设计中无旁滤设备.为使用好有限的淡水资源和提高工业水处理的技术水平,天津钢管公司和天津化工研究院共同完成了用TS-287、TS-809B水处理方案,解决了净循环水系统高浓缩倍数运行中腐蚀、结垢、细菌等问题,既节约了新水补水量,又控制了水质,为主工艺长周期运行提供了保障.     

包钢热电厂循环水系统优化运行措施研究

文章分析了包钢热电厂循环水水质状况、存在问题,试验研究了循环水对设备腐蚀、结垢影响,以及循环水提高浓缩倍数的可行性。并通过动态试验研究提出循环水优化运行参数,结合现场实际情况提出了可行的循节水及排污水利用措施。     

煤气发生炉洗涤循环水水处理实践

煤气洗涤循环水硫化氢散逸污染厂区空气现象,是一个长期存在的问题,本文从原理上研究控制循环水水质的方法,认为只要方法得当,是可以在亏水运行情况下,保持循环水水质、减轻空气硫化氢污染,并保证煤气生产.     

攀钢冷轧循环水水质稳定措施及效果

循环水设备结垢及菌澡滋生严重，不利于设备的安全高效运行，也浪费大量能源。通过制定水质稳定措施，实施后达到了预期效果，改善了循环水水质，保证设备的长寿化运行。     

煤气发电厂节约水资源生产实践

分析了发电厂用水工艺特点及水质要求,通过废水回收及循环水加酸技术的使用,提升循环水的浓缩倍率,减少工业新水的补入量,实现水资源的节约利用。     

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。     

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。     

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.     

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。     

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.