八钢发展冶金煤化工的浅析

本文分析了冶金煤气合成化产品的可能性及优势,对八钢冶金煤气组成进行了说明,重点列举了冶金煤气合成化工产品的种类、产能及竞争力,探讨了八钢冶金煤气合成固体聚烯烃产品的必要性,对比了八钢冶金煤气制聚烯烃项目与神华煤投一体化项目的投资额及产品成本,通过实例可以看出八钢发展冶金煤化工的可能性及优势,为八钢早日实现钢铁化工企业提供了佐证.     

八钢土球团矿相分析

对八钢自产土球团进行了矿相鉴定,并分析了其冶金性能,认为抗压强度低,还原粉化还原膨胀高是影响八钢土球团质量的重要因素。建议选择适宜的造球物料组成工艺和操作制度改善球团的冶金性能、提高球团质量。     

唐钢公司铁钢扩建后冶金石灰用量的平衡分析与对策

对唐钢铁钢冶炼用生石灰的现状及其石灰来源进行平衡分析，提出了解决唐钢铁钢扩建生产能力后冶金石灰来源和缺口问题的对策。     

唐钢公司铁钢扩建后冶金石灰用量的平衡分析与对策

对唐钢铁钢冶炼用生石灰的现状及其石灰来源进行平衡分析，提出了解决唐钢铁钢扩建生产能力后冶金石灰来源和缺口问题的对策。     

八钢冶金焦炭质量检验采用新老标准的探究

阐述了八钢冶金焦炭质量检验采用新老标准之优劣。通过对比，分析了八钢冶金焦炭质量检验采用新标准的重要意义，并对八钢冶金焦炭质量检验采用新标准的可行性进行了探讨。     

因地制宜提高冶金石灰质量

本文介绍了我国目前生产冶金石灰的设备和石灰的质量状况,指出用回转窑焙烧活性石灰是今后发展方向,对旧式竖窑要因地制宜,强调原燃料质量、改进技术操作、完善测量手段和提高质量意识等来进行技术改造,全面提高冶金石灰质量。     

涟钢煤气石灰窑技术分析

石灰是炼钢造渣原料中最重要的组成部分,而石灰的质量低是我国当前炼钢行业特别是中小炼钢企业的普遍现象,提高冶金石灰的质量,将促进炼钢行业经济技术指标的提高。涟钢煤气石灰窑生产的石灰,其活性度虽然比回转窑石灰低,但远高于焦炭竖窑石灰,而且煤气石灰窑的基建投资不大,对设备无特殊要求,建设工期短,操作易于掌握,是适合我国目前中小炼钢企业焙烧石灰需要的炉窑。     

贯彻冶金石灰系列标准 确保炼钢优质低耗

根据我国钢铁工业的发展规划,到本世纪末钢产量要超过1亿吨。我国的钢铁工业在国内外市场上面临新的机遇和挑战。社会主义市场经济体制要求钢铁工业在增加产量的同时,把品种、质量搞上去,才能在市场上有竞争能力。 要搞好钢的品种、质量,首先是要贯彻精料方针,抓好炼钢精料。冶金石灰是炼钢最基本的、也是用量最大的造渣材料,采用石灰在炼钢过程中造渣,去除钢中硫、磷等有害杂质。冶金     

活性石灰应用与气烧石灰竖窑工艺特点

概述了活性石灰在炼钢中的作用，分析了报烧竖窑生产活性冶金石灰共艺特点和优缺点，以及涟钢多年来在气烧石灰生产中的操作经验。     

炼钢转炉返渣回收利用的工艺探究

含铁量约15%的钢渣尾渣作为冶金辅料返回转炉循环利用,可以降低石灰消耗量,对少渣冶炼极为有利。对八钢目前现有铁水及原辅料条件下生产成品[P]含量小于0.015%钢种的过程中配加返渣,进行了降低渣料消耗的试验探索,返渣回收利用有利于脱磷,可以降低炼钢成本。     

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.     

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.     

Quality of life of relatives of mental patients

Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.     

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)