推动技术进步 发展循环经济 实现炼铁技术、经济、资源和环保的统一——在河北省冶金学会2006年炼铁学术会议上的讲话（2006年8月25日）

在河北省广大炼铁科技工作者的共同努力下，2005年以来，全省炼铁生产技术取得了更大的进步。各项生产技术经济指标再创新水平，在挖潜降耗，提高效益，淘汰落后、高炉大型化以及循环经济和环境友好实现清洁生产方面都有了新进展。在本届河北省炼铁年会上，各位参会代表共同听取了特邀专家的专题讲座，代表们之间相互沟通信息，进行了广泛的技术交流，与会人员对目前炼铁新技术的应用有了更深刻的了解，明确了下一步的工作重点和努力方向。广大技术人员围绕推进炼铁技术进步主题，对原料、焦化、烧结、球团、节能降耗、循环经济以及设备和信息自动化等多方面的工作实践和研究成果进行了总结，积极撰写论文，加强学术间的交流与讨论。会议共收到论文130篇，评选产生了一等奖16篇、二等奖24篇、三等奖35篇及优秀论文奖。由此可以看出，河北省炼铁系统优化工作得到了新的细化和加强，优化范围更广，内容更加丰富，炼铁技术进步又跃上了新的台阶。     

MKW112—1400八辊轧机主传动减速箱的改造设计与研制

针对轧机主减速箱存在的问题，重点从材质、热处理工艺、加工精度等方面做了相应的改进，采用了渐开线、硬齿面、高精度齿轮，消除了重大隐患，满足了生产要求，在引进设备国产化方面积累了经验，具有一定的推广价值。     

MKW112—1400八辊同主传动减速箱的改造设计与研制

针对轧机主减速箱存在的问题，重点从材质、热处理工艺、加工精度等方面做了相应的改进，采用了渐开线、硬齿面、高精度齿轮，消除了重大隐患，满足了生产要求，在引进设备国产化方面积累了经验，肯一定的推广价值。     

氢氧化镧湿法氟化法合成氟化镧工艺研究

采用了氢氟酸直接氟化氢氧化镧浆液的制备工艺，考察了工艺的可行性。研究了氢氟酸浓度、用量、反应温度、反应时间等因素对产物含氧量、氟化率和制备过程中过滤、洗涤的影响。通过差热分析、扫描电镜、X射线衍射等手段对产品的组成、形貌、结构等进行了研究。制备工艺为固液反应，工艺简单，产品分散性好，易过滤洗涤，质量稳定，工业可操作性强，流程短。     

锰钴渣提取氧化钴工艺研究

研究了从复杂含钴物料锰钴渣中提取氧化钴的工艺流程，确定了浸出、净化、沉钻、焙烧、铜渣处理等工序的技术条件，并进行了小批量生产验证试验，取得了较好的技术指标和经济效益。采用本工艺，流程适应性强，操作稳定，钻的回收率为９３．１３％，直收率达９０．１１％，同时有效地除去了锰钴渣中的铁、铜、锰、镍等杂质，回收了渣中的有价元素。本研究对从复杂含钻物料中生产氧化钴作了有益的尝试。     

冷轧机轧辊缺陷分析及改进措施

结合铝板带生产实际，分析冷轧机在压延过程中轧辊表面出现橘皮、印痕、软点、裂纹和剥落等缺陷的原因，提出改进、预防措施，延长了冷轧辊的使用寿命，降低了生产成本，保证了产品质量，获得了良好经济效益。     

ICP—AES测定锌合金中杂质元素含量的研究

研究了用ICP-AES法测定锌合金中杂质元素铝、镉、铁、镁、铅、铜的方法，建立了最佳工作条件，测定了方法的检出限、测定下限。进行了干扰试验、回收率试验、基体效应等试验，本方法简便、快速、准确，结果令人满意。     

莱钢步进式加热炉的节能改进

针对莱钢轧钢厂中小型车间步进式加热炉产量低、能耗高等缺点，对其进行了节能研究和技术改造。采取了一系列措施：优化了烧嘴、水梁、辊道的布置，增设了余热回收装置和隔墙，采用了新工艺、新耐火材料，并且应用了双交叉限幅燃烧控制系统。实践证明，这些措施是切实可行、科学合理的。与改造之前相比，吨钢能耗降低35．3％。     

胶西北焦家—仓上地区深部地球物理探测综合应用

近几年，为配合深部找矿工作，在胶东地区开展了大量的物探工作，取得了明显的探测效果。焦家—仓上地区虽开展过大量钻探工作，并对地壳深部进行揭露，但覆盖面小，无法全面掌握地质信息。在前人成果的基础上，进一步开展了高精度重力剖面、高精度磁法剖面、MT重磁电联合反演、CSAMT、二维地震等综合物探工作，通过对所得结果互相验证并结合钻探揭露，较全面地提取了焦家—仓上地区深部地质、构造等信息，构建了三维地质模型，确定了深部找矿靶区，为下一步深部找矿工作提供了方向及可靠依据。     

依靠技术进步 实现产量和质量的双突破

轧钢厂始终坚持科学发展观，依靠技术进步、技术创新、系统思考、与时俱进，增强了企业活力。同时，通过科学决策，加强管理，使型钢、带钢、中小型三条生产线实现了产量、质量的双突破。     

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)     

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。     

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.