轧钢加热炉改造

针对轧钢加热炉加热能力不足,炉墙冒火,自动化控制水平落后的情况,对加热炉进行了改造,延长了加热炉的长度,更换了单蓄热式空气烧嘴,并对自动控制系统进行了升级改造,从而消除了炉墙冒火的现象,提高了加热能力和自动控制水平,降低了煤气消耗,取得了良好的经济效益。     

TRT顶压控制系统及其安全性的研究与优化

介绍了天钢1~#TRT顶压控制系统,对现有的顶压控制系统进行了分析,在原有差压调节模式的基础上增加了顶压调节模式,将实际操作改为差压调节与顶压调节两种互选模式,提高了系统的发电效率;对旁通阀组的控制进行了优化,优化后极大地提高了系统的安全性,保证了炉顶压力的稳定,延长了设备的使用寿命,产生了较高的经济效益。     

实行财政集中支付制度后高校财务工作应注意的几个问题

高等学校财务实行财政集中支付制度,改变了账户设置,改变了支付方式,改变了资金存放方式,改变了资金结算方式,改变了执行信息反馈方式,改变了财务监督方式,有效地提高了高等学校财务工作的质量。为适应这种改变,高等学校财务部门要提升财务人员的素质,强化内部预算管理,提高经费使用效益。     

冷床上卸钢液压系统改造

对原液压系统设计及使用中存在的问题 ,进行了分析、计算 ,找出了原因所在 ,提出了改造方案 ,从而有效地提高了液压系统的稳定性 ,减少了设备故障 ,降低了维护强度 ,提高了工作效率。     

变频器在4#空分油泵控制系统上的应用

叙述了天铁动力厂4#空分系统辅助油泵应用EV2000变频器控制系统的过程,对运行中出现的溢油、油压波动不稳等故障现象原因进行了分析,提出了改进方案.改进后消除了故障现象,实现了闭环控制油泵的转速和启停,减小了对电机和电网的冲击和振动,提高了设备的可靠性,延长了电机使用寿命,保障了生产的顺利进行.     

浅议矿脉变化规律与探矿方法

概要介绍了樟东坑矿区的主要地质特征,在前人工作的基础上,对矿床的基本特征(尤其是矿脉的变化特征)进行了分析、探讨和总结;利用这些特性及其变化规律,采用一些新的探矿方法不但找到了一些隐伏盲矿,增加了地质储量,延长了矿山的服务年限,而且降低了探矿费用,减少了采矿的盲目性,节约了成本,增加了经济效益。     

朱店尾矿坝隐患治理研究

通过对尾矿库存在的隐患分析,找出原因,并对选场工艺及水系统进行了改造,改善了尾矿库的状态,消除了隐患,降低了成本,稳定了选矿指标。     

工业机器人在鞍钢型钢生产线的设计与应用

根据鞍钢股份有限公司型钢生产线工艺实际,制定了机器人硬件设计方案和机器人软件实现方案,实现了工业机器人自动贴标喷码技术在型钢生产线的应用.该系统的应用满足了产线工艺要求,提升了产线生产效率,提高了产品标识的准确性和可追溯性,贴标准确率和喷码准确率均达到了99％,实现了危险岗位无人作业,作业周期缩短了25％;同时,实现了产品标识的统一规范性,提升了企业产品形象.     

RTK和全站仪联合采集数据模式在安钢GIS中的应用

介绍了RTK和全站仪联合采集数据模式在安钢GIS中的应用情况,通过两种测绘技术的优势互补,简化了程序,提高了效率,减少了误筹,保证了测绘精度,节省了人力和物力.     

废水处理站自动控制系统的应用

介绍了邯钢冷轧废水站的配套项目废水处理站的自动控制系统,主要从自控设备组成、网络控制系统等方面论述了控制功能的实现,该系统的应用为ERP的数据采集提供了很好的保证,提高了电气控制的集成度和可靠性,简化了控制环节,提高了生产效率.     

高纯稀土氧化物的生产实践

介绍了一座高纯稀土氧化物生产厂建成投产后的生产实践主要状况。其包括稀土产品的生产能力及产量;选用的原料及生产工艺技术;生产中的三废状况及其治理;生产后的主要技术经济指标;产品的销售方向及发展前景;对一些问题的讨论。     

Reconsideration of the sequence of rigor mortis through postmortem changes in adenosine nucleotides and lactic acid in different rat muscles

Thirty strains of bacteria were randomly isolated and identified from buckwheat seeds. The phenotypic characteristics of these strains agree well with those of the Enterobacter agglomerans-Erwinia herbicola complex. On the basis of the difference in indole production and gas production from D-glucose, the isolates were divided into 3 phenotypic groups, viz. I, II and III. Twenty two strains were in phenotypic group 1, which is negative for indole production and gas production from D-glucose, and resembles Pantoea agglomerans. All six strains in phenotypic group II, which is positive for indole production and negative for gas production from D-glucose, were identified as Erwinia ananas. Two strains in phenotypic group III, which is negative for indole production and positive for gas production from D-glucose, were identified as Rahnella aquatilis.     

Frequency drives lexical access in reading but not in speaking: The frequency-lag hypothesis.

To contrast mechanisms of lexical access in production versus comprehension we compared the effects of word frequency (high, low), context (none, low constraint, high constraint), and level of English proficiency (monolingual, Spanish–English bilingual, Dutch–English bilingual) on picture naming, lexical decision, and eye fixation times. Semantic constraint effects were larger in production than in reading. Frequency effects were larger in production than in reading without constraining context but larger in reading than in production with constraining context. Bilingual disadvantages were modulated by frequency in production but not in eye fixation times, were not smaller in low-constraint contexts, and were reduced by high-constraint contexts only in production and only at the lowest level of English proficiency. These results challenge existing accounts of bilingual disadvantages and reveal fundamentally different processes during lexical access across modalities, entailing a primarily semantically driven search in production but a frequency-driven search in comprehension. The apparently more interactive process in production than comprehension could simply reflect a greater number of frequency-sensitive processing stages in production. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Long Term Landfill Primary and Secondary Leachate Production

This study evaluated long term primary and secondary leachate production from operating landfills in the northeastern United States. The data were obtained for periods when the landfills were in use (open) and were covered (closed). During the open period of operation, primary leachate production was 64% of the precipitation that fell on the site. After landfill cell closure, the primary leachate production declined and, four years after closure, such production reached quasi-equilibrium and averaged 2% of the precipitation. For secondary leachate production during the open and closed period, such production was 1 and 0.25% of the precipitation, respectively.     

柳钢100LF钢包精炼炉生产实践

根据LF炉生产、工艺、设备的特点，建立了适合柳钢实际的LF炉生产模式；对LF炉的生产设备进行了整改，使得其更好的服务于生产；为了能够更好的实现LF炉的升温、脱氧、去夹杂的功能，对LF炉的生产工艺进行了优化。     

米巴赫激光焊机重焊原因分析及其控制

连续化的生产作业大大释放了生产能力,降低了生产成本。焊机是冷轧连续化生产的根本保证。某钢厂酸轧生产线使用的是米巴赫激光焊机,实际生产中频繁的重焊对生产节奏产生了不利影响,可能导致冷轧工艺不合,出现停车废品。收集数据,使用Pareto图对影响重焊的原因进行了分析。分析发现,焊缝搭接是引起重焊的主要原因。为减少焊机重焊,对焊缝搭接的产生原因和改善措施进行了系统研究。     

钢铁企业高炉炼铁的稳定生产

高炉生产的稳定对于整个钢铁企业生产流程来说至关重要,高炉炼铁生产的工序能耗和生产成本都占到了钢铁企业生产的70%以上。为了回答什么是高炉稳定的问题,通过数据统计计算、对比分析等研究方法,提出了一种判定高炉稳定的判据。对比分析了宝钢和首钢稳定性较好的高炉的焦比偏差,研究了高炉不同焦炭负荷和不同综合入炉品位条件下焦比递减额,探讨和揭示了高炉生产稳定水平的标准,提出了高炉生产稳定问题的技术观点。     

Quantity food production labor time

To facilitate the development and use of production time data in quantity foodservice, Master Standard Data (MSD) were applied to determine the feasibility of developing a standard code for synthesizing and predetermining production times. Observations were made in a 2,000-meal-per-day foodservice system to determine basic activities common to the production of single-item entrées. An MSD Quantity Food Production Code was developed through the use of MSD and verified by stop-watch time study. Three formulas for single-item entrées were analyzed, divided into basic elements of production, from which production time for preparation of 100 portions of each entrée was synthesized. Stop-watch studies were performed on three replications of the production of 100 portions of each item. Differences between synthesized time values determined by applying the MSD and stop-watch technique were within acceptable limits. The MSD Quantity Food Production Code was, therefore, considered valid and reliable. Repeated occurrence of similar elements within production methods indicated that the code could serve as a structural framework for establishing a universal data code applicable to all aspects of quantity food production.     

基于ERP的济钢粗能力生产计划优化系统设计及实现

根据济钢生产组织的特点，利用线性规划模型，建立济钢连铸一轧钢整条生产线的粗能力生产计划优化模型，使企业把市场、销售、生产和成本有机地统一起来。采用改进的单纯形法，成功地开发出了济钢连铸一轧钢系统的生产计划优化系统。