南钢新混匀作业区混匀料不合格率的研究

在大量的混匀科生产数据的基础上,利用概率统计的方法,对南钢原料厂新混匀作业区混匀料不合格率进行了深入的探讨.通过对现场数据的多角度、全方位的剖析,找出了影响南钢新混匀作业区混匀料合格率的主要因素,并对其影响进行了研究分析,为今后的混匀料生产管理工作提供了科学的参考依据.     

内衬整合技术在烧结混料机上的应用

针对 3m× 9m圆筒混料机存在衬板脱落、磨穿、圆筒尾部甩料、混均制粒效果差等问题 ,在分析了混料机混料机理与内衬工作特点的基础上 ,采用了内衬整合技术。实践证明 ,混料机衬板的使用寿命提高了 12个月 ,改善了混匀效果 ,烧结矿全项合格率提高了 5 2 % ,年效益达 165万元。     

济钢烧结原料系统的技术进步

介绍了济南钢铁(集团)公司第一炼铁厂为了提高烧结原料质量,通过开发自动采制样系统、建设新汽车受料槽、提高混匀堆料层数、增加配料圆盘和采用自动变流量堆料等方面的技术进步,混匀料主要质量指标σTFe和σSiO2分别由2003年的0.5和0.21降低到2007年的0.33和0.10。     

八钢南疆钢铁综合料场提高混匀料质量的实践

八钢南疆钢铁综合料场自投产以来,通过采取一系列措施,引入标准偏差的概念、优化配料工艺、选择合理的堆料层数、提高堆料机速度、更新料条布库图、一次料场预混匀等,提高了混匀料的质量,满足了烧结对原料的需求。     

安(阳)钢原料场混匀效果分析

介绍了安钢原料场投产以来的生产情况，分析了其混匀效果，同时提出了下一步的改进建议。     

综合原料场人字形堆料技术

简要介绍了昆钢烧结厂综合原料场的设备配置,工艺流程和堆料管理,对进一步提高烧结用原料的稳定性作了一定的分析。     

自动变流量堆料系统的研究与应用

济南钢铁集团总公司原料厂为提高烧结原料质量,对自动变流量堆料系统进行了研究并应用于生产.混匀料的主要质量指标σTFe和σSiO2,分别由该系统应用前的0.45 %和0.12 %降低到0.34 %和0.09%.     

新型除铁器在烧结混匀料场中的应用

介绍了LJK系列除铁器的工作原理、工作过程及特点,并与传统除铁器进行了比较。重点对KIK新型除铁器在烧结混匀料输送中的应用情况进行了介绍,并分析了现场出现的问题,提出了处理方法。     

邯宝原料场投产初期提高混匀矿质量的实践

邯宝原料场自投产以来,通过采取一系列措施,如改变配料工艺、采用近硅配料方针、提高堆料机速度、优化流程组织、一次料场预混匀等,提高了混匀矿的产量和质量,满足了烧结对原料的需求.     

混匀料场防冻技术的应用

介绍了烧结厂在冬季混匀料堆防冻覆盖返矿的措施，达到了降低混匀料堆冻层的目的，保证烧结用原料的质量和数量。     

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)     

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.