磁化处理技术在矿物加工中的应用

近年来,广大选矿、冶金科技工作者对磁化处理技术在矿物加工领域的应用进行了大量研究.文中重点介绍了磁化处理技术在矿物浮选、化学浸出、固液分离等过程中的应用研究及相关机理.     

基于金相技术的金属材料显微组织分析

十九世纪中期金相技术问世后,便迅速得到了推广和应用.金相技术是对金属材料内部组织结构进行分析的一项技术.经过多年的发展应用,金相技术也在不断地提高和丰富.该技术在金属材料的生产、研究及失效分析等多方面都具有巨大的应用价值,已经成为金属材料生产和研究中不可或缺的一种检验手段.结合日常检验工作,通过金相技术对金属材料中的夹...     

微区电化学扫描技术应用现状

对微区扫描电化学显微技术的发展, 其工作原理及技术应用进行概述.综述微区扫描电化学技术在生物领域的应用（如对叶绿体, 癌细胞DNA等大分子的活动进行成像）、电源技术领域的应用（如对锂离子电池等的新能源电池界面反应）以及在金属腐蚀领域的应用（不锈钢、镁铝合金腐蚀机理和涂层失效行为等）.随着微区扫描电化学技术的进一步成熟, 势必会引发新一批的研究热潮, 推动新兴产业链发展.      

荧光显微技术在土壤微生物可视化研究中的应用

对近年来荧光显微技术在土壤微生物可视化研究中的应用进行了综述,介绍了荧光显微镜技术、激光共聚焦技术、荧光原位杂交技术,并综合分析了各项技术的优缺点.     

红透山铜矿"残采"顶底柱回收应用与研究

红透山铜矿“残采”顶底柱回收技术应用与研究介绍,并对其在矿山应用效果进行分析评价.同时,针对“2 m矿皮”的回收进行细仔剖析、效益对比,提出人工构筑假底隔离层技术方案.全面介绍方案的施工、用料量、成本计算.并通过实例证明其应用的可行性.     

GIS在新农村规划中的应用性研究

通过对新农村规划中应用GIS的必要性分析,并利用GIS生成的各种规划专题图对GIS在新农村规划中的应用模式进行研究,探讨了GIS技术在村庄规划中的应用,以及利用GIS在农村规划中的优越性.实践证明,将GIS强大的空间分析能力、高效的制图功能、科学的规划和管理等技术运用到新农村规划研究中,通过对GIS合理有效的应用,提高了新农村规划的科学性、实用性、规范性和准确性.     

分子生态技术在微生物硝化及反硝化研究中的应用

对微生物硝化、反硝化的机理及作用的相关酶及近年来的研究热点问题进行了探讨.综述了分子生态技术在微生物群落结构分析的操作步骤及应用情况,分析了荧光原位杂交、变性梯度凝胶电泳及末端限制性片段多态性技术的原理、操作流程、优缺点及其在硝化和反硝化中的应用.以往的研究表明分子生态技术已成为环境中硝化和反硝化过程及机理研究的有力工具.     

合肥滨湖新区地源热泵技术的应用研究

地埋管地源热泵技术是一种利用自然浅层岩体储冷蓄热特性,实现对建筑物供暖和制冷的低碳技术.本文根据该技术在合肥滨湖新区某工程的实际应用,对工程的岩土和水文地质勘察报告资料进行了分析,同时进行了空调全年动态负荷的计算,在技术特点、经济效益、能源结构、环境影响等方面与常规空调进行了对比研究,得出了地埋管地源热泵技术在合肥滨湖新区应用中节能减排的计算数据,指出在类似地质条件的合肥滨湖新区,该项技术具有的广阔的应用前景.     

传感技术在安全管理中的应用

针对公路施工中的安全问题,在数据分析的基础上,开展了传感技术在安全管理中的应用研究,并根据对从事公路施工安全管理人员、项目经理等进行的面对面调查情况,提出在事故预防对策中有效应用这些技术的具体方法.     

钒氮合金在高强度H型钢中的应用

通过比较VN、VPe合金在H型钢中应用的结果,对轧后H型钢的力学性能、微观组织、析出相等进行分析,研究了VN微合金技术在H型钢中的应用效果.     

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)