高炉鼓风机风量风压控制系统改造项目的分析与研究

介绍了高炉鼓风机风量风压控制系统改造项目,包括改造目的、改造方案、改造内容、改造的实施过程.分析了改造实施过程中存在的问题,项目技术重点、难点、创新点、技术目标完成情况,并对改造后的经济效益分析及推广应用前景进行了探讨.     

宣钢矩形坯连铸机高效化改造

传统连铸机实现高拉速、高质量、高作业率需要实施高效化改造。就宣钢二台矩形坯连铸机实施高效化改造存在的困难进行了论证,介绍了高效化改造应达到的目标,提出了实施高效化的基本思路和技术保证及高效化改造的具体内容,最后计算了与高效化改造有关的技术参数,并把改造前后的生产指标进行了对比分析和经济效益分析。实践证明,高效化改造能给钢厂带来巨大的经济效益,传统连铸机实施高效化改造是钢厂今后节能降耗,结构优化的主要途径之一。     

城中村改造中的博弈关系分析与应对

介绍了城中村现象概况,运用博弈理论分析了城中村改造过程中各改造主体的博弈关系,揭示了改造过程中的主要利益冲突,并在此基础上提出各改造主体的合理利益,最后以保定市城中村改造为基础,提出了城中村改造的应对策略.     

高压变频器在炼轧厂脱硫除尘风机上的应用

通过对酒钢宏兴炼轧厂脱硫除尘风机的高压变频节电改造的介绍,详细叙述了改造的目的、技术方案、改造过程。分析了改造效果及效益评价。最后阐明节能改造的意义。     

6m焦炉装煤车存在的问题及改进措施

简述了6 m焦炉装煤车存在的问题,分析了改造原因、改造过程以及设备改造后的生产使用效果。     

交流传动系统在自行式卸船机电气改造中的应用

介绍了宝钢原料码头12U2桥式自行式小车卸船机电气系统改造项目的总体方案,包括项目前期策划、设计过程中的方案讨论与成型以及改造后的效果评价。简述了卸船机机型和控制技术的发展趋势,分析了卸船机目前的使用状态并提出改造的必要性。通过对直流系统和交流系统改造比较分析,对系统的稳定性、可维护性以及地面供电系统的适应性进行了讨论,最终采用交流传动系统的改造方案,对方案中的重点和难点问题进行了详细的分析,提出解决办法。     

型钢加热炉的大修改造

分析了型钢生产线步进梁式加热炉存在的问题。结合加热炉大修改造,介绍了炉体结构改造及采用的新技术、新工艺与新材料。结果表明,大修改造解决了步进梁式加热炉存在的问题,改造效果显著。     

无控制工质电液调节系统改造背压机组的可行性分析

分析了B25机组控制系统改造的必要性,简要介绍了无控制工质电液调节控制系统的特点,结合无控制工质电液调节控制系统的特点,对B25机组改造的可行性进行了分析,为机组的控制系统改造提供了参考。     

铜精矿预干燥烟气处理系统的改造和生产实践

简述了贵溪冶炼厂铜精矿预干燥烟气处理系统改造前的基本情况,分析了改造前预干燥烟气处理系统存在的问题和改造目标,详细论述了改造前和改造后的预干燥烟气处理的工艺流程,介绍了改造前和改造后的运行数据,并对本次改造的技术特点进行了总结。     

八钢软化水系统的联网改造及优化运行

分析改造前软水系统存在的问题,介绍改造的思路和具体方法,提出了联网改造后优化运行的原则方式,并就其实际运行效果进行了分析.     

网络技术在中州分公司计量管理工作中的应用探讨

本文通过对中州分公司正在考虑建设的信息网建设实际情况，结合山东分公司、广西分公司取得的经验，对计量管理信息网的应用进行了探讨。     

常压预脱硅技术在烧结法氧化铝生产中的应用探讨

本通过比较河南分公司和中州分公司的烧结法粗液脱硅流程的改进经验。提出了山西分公司烧结法粗液脱硅流程的改进方案，对粗液进行常压预脱硅，达到了降低脱硅机组压力，减少脱硅机组结垢，降低蒸汽消耗的目的。     

Psychology and the Office of Naval Research: A decade of development.

"During its tenth year, the Psychological Sciences Division of ONR was supporting 143 separate contracts for research in various fields of psychology." Summary tables are presented of financial support of contract research projects by the Psychological Sciences Division, ONR from 1946 through 1956, areas of contract support by Psychological Sciences Division 1946-1956 and the geographic distribution of 143 ONR contracts active in the year 1956. Psychology's place within ONR, the substantive work of the branches of the Psychological Sciences Division (Physiological Psychology Branch, Personnel and Training Branch, Group Psychology Branch, Engineering Psychology Branch, and the Manpower Branch), ONR's impact on psychology (in terms of publications, conferences and symposia, and the training of graduate students), the evolution of psychology in a government agency, and perspectives of the present and the future are presented. 24 references. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

转炉装入量切换冶炼的用氧工艺研究

武钢股份公司要求条材总厂CSP分厂的转炉不仅要向CSP连铸连轧生产线（转炉的装入量为150t）提供钢水,还要随时按计划向条材总厂一炼钢分厂（转炉的装入量为120t）提供钢水,要求CSP分厂的转炉解决装入量切换（120t/150t）冶炼的用氧问题,本文论述了转炉装入量切换（120t/150t）冶炼的用氧工艺问题。     

鞍钢鲅鱼圈煤岩配煤技术的开发与应用

针对鞍钢鲅鱼圈所处中国东北部港口的独特地理位置特点,建立了适合鞍钢鲅鱼圈的煤岩配煤方法,分析了鞍钢鲅鱼圈配煤方案工程应用中各煤种用煤特点,考察了工程应用配煤方案的煤岩特征,并对应用煤岩配煤方案所得焦炭质量进行了分析,论述了鞍钢鲅鱼圈开展煤岩配煤技术为企业所创造的经济效益。结果显示,鞍钢鲅鱼圈通过煤岩配煤技术的研究开发与应用,使炼焦用煤结构从以肥煤为主向以进口炼焦煤为主、国产劣质炼焦煤为辅的低成本炼焦用煤结构转变,在满足大型高炉用焦质量要求的前提下,不断优化配煤方案,逐步提高焦炭质量,使焦炭的反应性从27.36%下降到24.95%,反应后强度从62.20%提高到65.37%以上。     

转炉双联法冶炼技术实践

综述了不锈钢分公司转炉双联法冶炼工艺的生产实践情况,讨论了该工艺在主原料装入、造渣工艺、吹炼模式、锰矿直接合金化等方面的特点,并叙述了不锈钢分公司应用转炉双联法冶炼工艺所取得的效果.     

鞍钢齐大山铁矿选矿分厂循环水质研究

鞍钢齐大山铁矿选分厂自投产以来，循环水质一直不能做到达标排放。究其原因，所用净水剂效果不够理想。为解决这一问题，对鞍钢齐大山铁矿选矿分厂水质进行了深入研究，取得了较理想的效果。     

武钢CSP分厂生产集装箱钢SPA-H的实践

介绍武钢条材总厂CSP分厂集装箱钢SPA-H的成分设计、生产难点及其生产效果。通过统计分析现场生产数据,归纳总结出其热轧卷的产品特性,从设备工艺方面阐述了武钢CSP生产薄规格集装箱钢的优势。     

Diagnosis of mucin-producing tumor of the pancreas by balloon-catheter endoscopic retrograde pancreatography--compression study

The procedure of choice for the treatment of mucin-producing pancreatic tumor (MPPT) remains controversial, since it includes not only malignant but also benign lesions. The purpose of the present study was to characterize 53 consecutive cases of MPPT and to elucidate the characteristics of benign or malignant MPPT according to the findings of an improved method of endoscopic retrograde pancreatography (ERP), namely balloon-catheter ERP-compression study (balloon ERP-CS), as well as endoscopic ultrasonography (EUS), in comparison with a histological examination. There were 37 male and 16 female cases with a median age of 63+/-11 (mean+/-SD). The balloon ERP-CS was performed in all cases, and the obtained pancreatograms were classified into two types: Main Duct type and Branch Duct type. The latter was further divided into subtypes A and B. The Branch Duct A type showed only cystic dilatation of the branch duct. If the main pancreatic duct downstream to a cyst showed more than a 5 mm dilatation, this was classified as a Branch Duct B type. Seventeen out of 19 Main duct types (89%) were histologically diagnosed as neoplasms including 13 lesions of cancer and 4 of adenoma. All the Branch Duct A type cases were diagnosed as hyperplasias. 23 Branch Duct B type cases contained 7 cancers, 8 adenomas, and 8 hyperplasias. In the Main Duct type, benign or malignant, the diagnostic ability of balloon ERP-CS was calculated as sensitivity 100%, specificity 40%, and accuracy 84%; in the Branch Duct type, sensitivity 73%, specificity 86%, and accuracy 82%. On EUS, it was found that the size of the tumor in the cyst, with respect to the maximum diameter as well as height, correlated well with the grade of malignancy. All tumors (n=35) greater than 20 mm in diameter were found to be cancerous. These findings indicate that the MPPT is highly suggestive of neoplasms when the dilatation of the main pancreatic duct is detected by balloon ERP-CS and when, in a case without dilatation of the main pancreatic duct, a nodular lesion greater than 10 mm in diameter is identified in the cyst by balloon ERP-CS as well as EUS. Our current patient management strategy for operations is as follows: Main Duct type patients and Branch Duct type patients with a nodular defect detected by balloon ERP-CS and with an elevation of more than 10 mm in EUS should have an operation. Other Branch Duct type patients without main pancreatic duct dilatation are followed up by balloon ERP-CS.     

基于线性加权变换法的总图选址方案评价研究

在介绍线性加权变换法的计算方法及模型的基础上,以武钢建工集团钢结构分公司搬迁扩建工程为研究对象,应用线性加权变换法对其选址方案进行评价和分析,为武钢建工集团钢结构分公司搬迁扩建工程选址提供科学依据。