10t"O"型龙门吊的改进与探索

本文介绍10t“0”型龙门吊通过静定车架结构代替传统的超静定结构的改进，其造型美观，受力合理，降低了精度要求，节省了大量的材料，降低了成本，使制造工艺更加方便，大大降低了金属结构的自重，改善了起重机的运行状态，延长了驱动车轮的寿命，故障率低，维修费用少。     

杭钢ERP系统的PM模块应用

随着企业的发展，实现企业信息化管理，提升管理水平，进一步挖掘企业的潜在能力，已成为企业的主要工作目标，杭钢2002年11月启动ERP信息工程，2004年2月顺利上线，运行ERP至现在，设备管理系统已经初步建成了全公司设备管理信息平台，基本实现了设备管理的物流、资金流、信息流三流合一，实现了整个集团公司设备系统的信息共享，实现了业务信息传递无纸化，提高了工作效率。     

速度和创新决定一切——浅谈朝阳百盛锆业有限公司发展历程

主要介绍了朝阳百盛锆业有限公司的发展历程，展望了公司的发展前景，指出了公司的进步得益于创新和速度，提出了创一流企业，创一流产品，开拓创新，永无止境，服务社会，追求卓越的发展宗旨。     

DIEPA钢丝绳在梅钢起重机上的应用

介绍了随着梅钢炼钢厂产能的大幅提升，生产工艺线起重机钢丝绳的使用状况，通过对其中1台起重机的吊运次数统计，并对钢丝绳实施定量倾向管理，分析了该钢丝绳使用寿命短的原因，并结合现场实际，采取了一些改进措施，并逐步推广，有效保障了起重机安全，为梅钢产能进一步增大创造了条件。     

新材料新技术在加热炉改造中的应用

使用新材料新技术，延长了加热炉和空气换热器的寿命，提高了作业率，减少了设备维修费用，节约了能源，增加了经济效益。     

节俭在美国再度成为时尚

由于经济危机的影响，美国个人主义消费的时代已经结束，节俭成了新时尚。现今的美国人崇尚节俭，减少消费，比过去更具群体观念；但是，美国人也因此变得贫穷了，愤怒了，胆小了。     

烟气分析动态控制炼钢技术的应用与改进

介绍了烟气分析动态炼钢系统的组成以及模型的工作原理。在应用过程中，根据国内转炉生产的现状，进一步完善了控制系统和模型，并通过对模型的改进和优化，提高了转炉终点碳温命中率，降低了造渣料消耗，减少了吹炼过程的喷溅，缩短了转炉冶炼周期，获得了较好的冶金效果。     

首钢高速线材厂φ6．5mm系列产品的工艺优化

首钢高速线材厂通过优化工艺设计，解决了φ6．5mm系列产品尺寸精度差的问题，提高了产品质量，并通过预精轧机甩机架生产，减少了工装备件，缩短了换辊时间，提高了生产作业率，经济效益显著。     

烟气分析动态控制炼钢技术的应用与改进

介绍了烟气分析动态炼钢系统的组成以及模型的工作原理。在应用过程中，根据国内转炉生产的现状，进一步完善了控制系统和模型，并通过对模型的改进和优化，提高了转炉终点碳温命中率，降低了造渣料消耗，减少了吹炼过程的喷溅，缩短了转炉冶炼周期，获得了较好的冶金效果。     

大包耐火衬中的绝热层设计

在大包耐火衬的设计中增加一层绝热衬，结果在17个月的服役过程中，外壳温度平均降低50℃，提高了安全衬的紧密度，缩短了预热时间，减少了能耗，提高了大包利用率，改善了维护人员的工作环境。     

Investigation of Flow Upstream of Orifices

A physical model study is conducted to investigate the flow field upstream of orifices. In particular, new experimental data for the upstream flow pattern resulting from multiple orifices, an orifice near a free surface, and a large orifice (where the pressure gradient across the orifice cannot be ignored) are collected and presented. A new potential flow solution for flow behind orifices is developed to include pressure gradient effects as well as to accurately superpose the solution due to multiple orifices and determine a solution close to orifices. The proposed solution compares well with the measured data for multiple orifices and for an orifice near a free surface. For a large orifice, the skew in the velocity profile in the vertical direction due to the pressure gradient is accurately predicted.     

Self-discrepancy: Comparisons of the psychometric properties of three instruments.

In 2 studies, the psychometric properties of 3 methods for measuring real–ideal and real–ought self-discrepancies were compared: the idiographic Self-Concept Questionnaire–Personal Constructs, the nonidiographic Self-Concept Questionnaire–Conventional Constructs, and the content-free Abstract Measures. In the 1st study, 125 students at a university clinic completed the 3 instruments and measures of anxiety and depression before individual therapy. In the 2nd study, 278 undergraduates completed the 3 instruments at 2 time points 4 weeks apart and completed multiple measures of anxiety and depression at the 2nd time point. Internal consistency alphas were consistently strong for the personal construct measures (.90 to .92) and moderate to strong for the conventional construct measures (.82 to .90). Test–retest reliability coefficients were above .70 for the personal construct and conventional construct measures, but the coefficients for the latter were inflated by the stability of their error terms. The 2 discrepancies were found to be factorially distinct even though they were highly correlated. Convergent and discriminant evidence of validity was found in both studies for all measures except the abstract real–ought discrepancy. Convergence was as strong or stronger for the personal construct measures in comparison to the other measures. Test-criterion evidence of validity, with multiple measures of anxiety and depression as criteria, was found in both studies for all measures except for the abstract real–ought discrepancy in relation to anxiety. Overall, the findings support the idiographic personal construct instrument most strongly for clinical assessment and for clinical, translational, and personality research. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Review of Taking charge: How families can climb out of the chaos of addiction.

Reviews the book, Taking charge: How families can climb out of the chaos of addiction by Stephen E. Schlesinger and Lawrence K. Hornberg (1998). In this guidebook the authors present their multimodel approach, which is designed especially for family members of an addict. The authors encourage the reader throughout the book not to feel ashamed to look for professional help. The reviewer can recommend this book as an excellent resource for professional work, either for individual therapy or as an introductory reading for groups. The reviewer appreciates very much the themes of this book--to help family members become more aware of their own needs, to repair the damage caused by addiction, and to reunite them for a more satisfying and happier life. This change in the family interaction holds great promise for the addict who wants to recover. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

加强科技档案信息资源的开发和利用

科技档案要科学管理,提高档案管理人员的素质修养,是做好科技档案信息资源开发利用工作的保证,合理开发利用科技档案信息资源,是新时期做好档案工作的有效途径,用创新、快捷、有效的服务方式,为社会发展服务,实现科技档案可持续发展的内在价值。     

总降压变电站变压器容量及台数的选择

总降压变电站变压器容量及台数的选择原则一是满足负荷类型对供电的要求,即台数的确定,二是满足经济性要求,即容量的确定。本文通过不同方案的对比,介绍了某工程选择变压器容量及台数的方案确定过程。     

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In order to improve the accuracy of calculation for erosion of lining of blast furnace hearth and shorten the calculation time, quasi- 3D dimensional method was used for calculation of erosion for shaft section of lining of blast furnace hearth. The calculation used the correction item of circumferential heat transfer to replace circumferential heat transfer and gave the treatment method for correction item of circumferential heat transfer. The erosion model for axial section of lining of hearth was established by using ANSYS software. The successive approximation method was adopted to modify the boundary of erosion, then the steady- state calculation was done. The calculation steps of quasi three dimensional method was described. The difference between the models established by 2D method and quasi- 3D method was analyzed by actual example. The simulation results show that quasi- three- dimensional method has a smaller amount of calculation but higher accuracy than two- dimensional method, which verifies that quasi- three- dimensional method is suitable to analysis of erosion.     

Assessment of Time of Concentration Formulas for Overland Flow

Despite the importance of overland time of concentration on the design discharge, engineers are often bewildered by the array of formulas available in the literature without knowing the accuracy of each formula. This assessment covers nine formulas published between 1946 and 1993, which are intended for overland flow only that is subjected to uniform rain. The assessment compares the estimates from the formulas with experimental values that are derived under the same conditions for two surfaces: concrete and grass. The assessment shows that formulas that do not account for the rainfall intensity are only valid for a limited range of rainfall intensities. The formulas that account for the rainfall intensity generally show better agreement with the experimental data. Finally, the assessment gives two rankings of the formulas for the two surfaces in accordance to their accuracy as compared to the experimental data. The formula that has the best accuracy for both surfaces is the Chen and Wong formula.     

Effect of tryptophan and of glucose on exercise capacity of horses

A method based on discounted income and risk assessment was developed to aid in the selection of dairy sires. The discounted profit generated from milk production of daughters was proposed as the suitable composite selection criterion to combine estimates of predicted transmitting ability (PTA) for yields of milk, fat, and protein and estimates of sire evaluations for dystocia or expected progeny difference. Steps are described to derive discounted profit (defined as expected income) for a sire with known PTA and evaluation for dystocia. The derivation of profit considered costs for semen, dystocia, heifer raising, production and maintenance of the daughter, and income from milk. Variance of income from a sire depended on the reliability of his PTA and evaluation for dystocia. Total variance from a selected set of sires was defined as the risk. A quadratic programming procedure was developed to identify the best set of sires from a given pool of sires that met a desired expected income goal with minimum risk. Combinations of sires with minimum risk for all possible levels of expected income were defined by the expected income variance frontier. The set of sires at the maximum lower boundary for 95% confidence of the expected income variance frontier was defined as the optimum set of sires to be selected; the optimum set maximized the 95% guaranteed expected income. The quadratic programming procedure provided the optimum percentage of cows to be mated to each sire in the selected set.     

Modeling of thermomechanical processing of heat-treatable aluminum alloys

This paper describes formulation of a model for calculating recrystallized grain size for heat-treatable aluminum alloys subjected to thermomechanical processing for grain size control. When combined with Zerer's equation for the limiting grain size during grain growth in particle-containing materials, the model can be used to calculate the stable grain size after thermomechanical processing. A set of adjunct models and experimental observations have been used to relate alloy composition and processing parameters to the intermediate variables which are inputs to the model for recrystallized grain size. Model results are compared with experimental data from various sources. Modeling results exhibit all of the trends observed in the experimentally-determined grain sizes for AA7075, for AA6063, and for modified AA7475 alloys containing different dispersoid-forming additions.     

Method for Evaluation of Depth of Wetting in Residential Areas

Field sampling was performed at a number of residential structures in the Denver metropolitan area for the purpose of assessing the extent of wetting below residential structures after construction and commencement of landscape irrigation. Total suction measurements using filter paper methods were undertaken on undisturbed samples. A similar data set from sites without previous development or irrigation was used to estimate the suction profile before the imposition of residential construction and landscape irrigation. Comparison of the postdevelopment profile measured at the residential structures to the predevelopment profile estimated using a site-specific procedure was used to assess the depth of wetting at each structure. Cumulative probability curves are presented for the depth of wetting arising from common residential landscape schemes and site drainage for the Denver area. The Denver-area data set was used to develop a method for assessment of depth of wetting. This method can be used to assess depth of wetting from residential development for other regions having different climatic conditions and landscape practices.