浅谈核电工程质量保证体系建设

核电质量保证体系是确保核安全一道重要屏障。随着电力需求日益剧增，我国核电厂建设开始从沿海向内陆发展，现开工在建核电工程已达到二十多台．大量企业和人员参与到核电建设事业中，核电厂曾经披着的神秘的面纱被慢慢掀开。核电建设阶段质量直接影响后续核电厂安全运行，必须要求参与核电建设企业建立一套完善、健全的质量保证体系并得到有效运作，确保核电建设工程质量，为核电厂核安全提供保障。     

核电用钢的开发与展望

阐述了我国核电发展的现状及特点,重点介绍了鞍钢在核电用钢开发方面现有装备情况及取得的业绩,同时对我国钢铁企业未来核电用钢的研发方向进行了展望。     

中国成为全球核电在建规模最大国家

国家发展和改革委员会副主任、国家能源局局长张国宝9月20日表示，近年来中国核电事业呈现良好发展态势，截至目前，国务院已核准34台核电机组，装机容量3692万千瓦，其中已开工在建机组达25台、2773万千瓦，是全球核电在建规模最大的国家。     

我国核电工业铀资源流动及优化研究

鉴于我国核电的快速发展,核燃料的可持续供应和使用,以及乏燃料的有效管理,对于我国核电工业的发展至关重要。文章基于核电工业核燃料的生命周期,得到了我国2012年核电工业核燃料的流动状况。在此基础上,基于我国未来可能的核燃料循环模式及发电成本,构建了核燃料循环的优化模型,得到了在两种乏燃料后处理能力下的堆型优化结果和年度及累积天然铀资源需求量。     

宝钢特钢事业部成功锻制核电用不锈钢厚板坯

日前,特钢事业部成功锻制出核电用2级奥氏体不锈钢厚板坯,极大地推动了我国核电用不锈钢厚板的发展。     

第二代电渣冶金技术与重大装备制造

2010年是我国电渣重熔技术工业化50周年.论述了电渣冶金技术的分类,发展历史的"分期",第二代电渣冶金技术特征.超大型电渣重熔锭及第二代液态金属浇注大型电渣锭与核电等重大装备制造业发展的关系.指出:中国在电渣重熔锭大型化发展方面,一直处于世界电渣强国地位.随着我国重大装备制造技术的迅速发展,特别是我国核电工业的迅速发展,大型锭电渣冶金技术将不断完善与发展,反过来它又必将促进我国在核电技术方面迅速赶上国际先进水平.     

我国核电承压设备用钢的发展现状与研究方向

分析了我国核电承压设备（反应堆压力容器、主管道、蒸发器、稳压器和安全壳等）用钢的发展现状与发展方向,并指出某些元素在核电承压设备用钢中的作用及对其辐照脆化的影响。分析认为,为了确保核电承压设备用钢的使用性能和安全性能,必须严格控制残余元素水平、组织形态等,保证锻压比和后期退火工艺参数。     

锆合金研究进展及我国核电站用锆材国产化的思考

综合评述了国内外核电站用锆合金材料的研究进展,重点介绍了目前国际上发展成熟的高性能锆合金：法国的M5合金、美国的Zirlo合金、俄罗斯的E635合金、日本的NDA合金及韩国的HANA合金。分析了我国在核电站用锆合金材料研制过程中存在的问题,以及我国核电用锆材国产化的难点。对我国核电用锆材的发展思路提出了几点建议。     

行业综述

钛办专家建议:要努力发展我国自己的钛工业——为充分利用我国的钛资源优势,发展我国的钛工业,全国钛办的王向东等专家建议石化核电钛制设备亟待国产化为充分利用我国的钛资源优势,发展我国的钛工业,提高我国钛设备制造水平,从而更好地为国防军工和经济建设服务,全国钛办的王向东、张顺福、逮福生、贾弘等专家建议:石化、核电成套装置中的钛制设备,应立足于国内解决。     

鞍钢集团钢铁研究院获国家核电赞誉

正近日,鞍钢集团钢铁研究院清洁能源用钢团队收到了来自国家核电技术有限公司的感谢信——"在过去的一年里,我们全面落实国家电投与鞍钢集团加强合作要求,聚焦核电材料自主技术创新,携手推进核能产业高质量发展。2021年,希望双方在新型核电材料开发、核电用钢质量提升研究等领域精诚合作,推动我国核电材料国产化研发取得新成就。"2020年以来,该院在关键核心技术攻关、重点产品研发、     

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.