1988年《铁合金》总目录

文章题目期号页数‘页数 12硅质合金75%硅铁的成分控制 与生产节能的讨论1为实现冶炼过程最佳化 对硅铁熔炼的分析1硅铁冶炼反应机理探讨2工业硅炉外精炼过程的物理化学分析2N 05熔剂精炼工业硅研究2小容量矿热炉生产工业硅初探212500kVA电炉冶炼75%硅铁降电耗 的途径3自焙炭砖在工业硅电炉中的应用3新型耐火材料在硅铁电炉上的应用3氯化钙用于冶炼75%硅铁的实践3关于硅铁电极极心圆参数的探讨5高炉冶炫25%硅铁的研究5硅精炼原理6 文章题目用低碱度}却台炼中碳锰铁让锰合金冶炼电炉操作控制 模型的开发锰合金生产中熔炼炉料的预热和 预还…     

《铁合金》一九八一年总目录

期数页数页数 34硅质合金nU Jqn‘2行才Q甘口dl匕8︸11︸nd弓d OJ月任月任八匕︵U月八月q no特殊硅铁冶炼工艺的实验探讨国外硅铁精炼方法综述一家拥有两台电炉的硅铁厂在过 程计算机控制下进行生产硅铁生产的难点含铝1.5%硅铁的生产情况真空断路器在1800KVA硅铁炉上的 应用使用加水的炭素还原剂在封闭炉里 熔炼硅铁埃背85。。kw75%硅铁封闭电炉的 发展和成就 题名期数富锰渣调质实验4高碳锰铁吹氧法(MOR)生产精炼 锰铁合金4关于“ic在硅锰合金生产中的应用 问题‘4等离子炉熔炼硅锰合金的脱磷机理攻Q工C口锰质合金 铬质合金电热—燃…     

6.5MVA封闭式锰硅电炉的设计及其特点简介

介绍了１６．５ＭＶＡ封闭式锰硅电炉的主要技术参数，设备组成及其结构形式以有设计特点。此电炉的设计吸收了国内外成熟的先进技术，并在生产中取得了令人满意的效果。     

6300kVA铁合金直流电炉试生产

本文介绍了６３００ｋＶＡ直流电炉试炼锰硅合金的情况。其结果表明，炉况良好，操作平衡，噪音低，冶炼电耗接近国内一般水平，电极糊消耗较少。     

DCS系统在锰硅合金冶炼中的应用

介绍了通过对锰硅合金炉原PLC控制系统进行改造,采用了DCS控制系统,实现了锰硅合金电炉冶炼的专家控制系统、关键冶炼参数状态显示、故障诊断、设备运行状态数据的全生命周期记录,达到了提高生产效率和安全生产的目的。     

《铁合金》1987年总目录

号66舰文章题目期号页数耳雌 40硅质合金 文章题目锰的硅热还原为提高锰回收率硅锰合金炉渣物理 化学性质的最佳化1料打韶特殊低碳硅铁冶炼试验用蓝炭冶炼75%硅铁的探讨硅钙合金物料平衡和理论能耗粗算硅铁电炉料面严重烧结的处理方法硅铁高效率的冶炼技术和余热回收 发电系统180OkVA硅钙电炉的解剖低碳硅铁和超低碳硅铁的研制与生产硅铁和金属硅的生产操作特点浅谈工业硅电炉熔池参数的选择硅钙铁的试制和试用硅铁电沪极心圆直径改大的效果铬质合金2 3 3 45浅析硅铬合金含碳量的影响因素铬铁中氢、氧、氮含量影响因素浅析添加硼酸盐对铬…     

碳热法直接冶炼硅铝铁合金实践

在１８００ｋＶＡ电炉中用铁矾土冶炼硅铝铁合金的实践表明，生产含Ａ１２８一３３％、Ｓｉ３０—３５％的硅铝铁合金效果最佳，冶炼电耗为９９７６ｋＷｈ／ｔ．硅、铝回收率分别达到８０．５９％和８２．４４％，炉况易控制．炉底没有明显上涨。     

9MVA封闭电炉冶炼高硅锰硅合金的实践

阐述了在 9MVA封闭电炉上冶炼高硅锰硅合金的实践。在冶炼中配入一定量的 75%硅铁 ,选择合适的渣型 ,在操作上做些相应的调整 ,就可顺利生产出高硅锰硅合金 ,其电耗、产量等指标均较理想     

硅石焦做还原剂冶炼硅锰合金

在９０００ｋＶＡ电炉中进行了分别用硅石焦和冶金焦做还原剂冶炼硅锰合金的试验，用硅石焦做还原剂，锰回收率由用冶金焦时的７３．５％提高到７６．５％，产品中锰含量由６４．５％提高到６７．２％，电耗平均降低１３５ｋＷｈ。硅石焦是冶炼硅锰合金的优良还原剂。     

锰硅电炉炉瘤控制工艺浅析

以实现有效电极工作端为理想炉况的主要标志,通过分析硅铁、硅钙和硅铬合金生产过程中炉瘤的生成机理,阐述了锰硅炉瘤的生成及对炉况的影响,并结合对锰硅电炉炉况的控制,总结了锰硅电炉炉瘤的控制方法。     

Ultrasonic Pulse Velocity in Nondestructive Evaluation of Low Quality and Damaged Concrete and Masonry Construction

This paper discusses applications of ASTM C 597 “Standard Test Method for Pulse Velocity Through Concrete” technique to field detection of damage to concrete in service and field quality assessment of cast-in-place concrete and masonry under construction. Four unique field investigation and validation studies are discussed in this paper. The first part includes field assessments of concrete members under construction with questionable quality. Case studies include detection of zones of high air content and low strength concrete in a cast-in-place, posttensioned structure and detection of voids and honeycombs in poorly consolidated cast-in-place beams. The third case study pertinent to construction involves detection of poorly consolidated collar joints in a masonry rehabilitation project. In addition to assessments during construction and rehabilitation, this paper also discusses assessment of damage to concrete structures in service. The case study included in the paper involves exposure to elevated temperatures during a fire at a precast, double tee concrete parking structure. Nondestructive evaluation (NDE) testing findings were validated by subsequent laboratory testing or selective demolition to confirm NDE findings. This paper should be of value to practicing engineers interested in application of pulse velocity testing technique in field assessments similar to ones discussed. This paper should also be of value to researchers interested in applicability of pulse velocity to research concerning properties of concrete subjected to the damage mechanisms associated with elevated temperatures.     

The pleasure of unadulterated sadness: Experiencing sorrow in fiction, nonfiction, and "in person."

We often experience intense emotions when we enter fictional worlds in film and literature and often shed real tears. The goal of this study was to determine whether emotional reactions (sadness and anxiety) to fiction are distinguishable from emotional reactions to fact. Fifty-nine young adults rated their sadness and anxiety levels in response to 4 film clips, 2 presented as fiction, 2 as nonfiction, and in response to the recall of an actual sad event personally experienced. Participants experienced equivalent levels of sadness and anxiety in response to films presented as fictional or factual. They also experienced equivalent levels of sadness in response to films and in response to a sad personal event. Anxiety levels, however, were significantly higher in response to personally experienced events. The fact that sadness elicited by films is unadulterated by the anxiety that accompanies the sadness of personal experience may explain, in part, the pleasure we derive from watching sad films. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A way to reduce environmental impact of ladle furnace slag

Abstract

In the last decades the European steel industry has made continuous efforts to reduce residues and byproducts and to increase recycling in order to reduce its environmental impact. While some steelmaking slags have been widely characterised and, to a certain extent reused, ladle furnace (LF) slag is used in different applications because of its specific properties. The main purpose of the case study presented in this paper concerns the reduction of potential LF slag environmental impacts, because of its intrinsic physicochemical properties. During the handling and cooling of LF slag, it disintegrates into a powder due to instability of the dicalcium silicate, causing an increase in dust emissions to the environment. The approach presented in this paper aims to reduce this phenomenon in order to achieve a more sustainable solution in term of reduction of powder dispersion in the environment, of costs saving and of nuisance reduction in the surroundings areas.     

Edward C. Webster (1909-1989).

Presents an obituary for Edward C. Webster, recipient of the 1982 Distinguished Award for Contributions to Canadian Psychology as a Profession and Professor Emeritus of McGill University. Webster died on February 15, 1989. His career was dedicated to the application of psychological principles to real life problems, not just in practice but in research, in administration, and in service to his profession and community. Although committed to the development of applied psychology generally, Ed's major impact on theory and research was in industrial psychology, particularly in personnel selection. Like many other practitioners, he made extensive use of the interview as an information gathering technique, upon which recommendations to hire were based. Another major contribution he made to Canadian professional psychology was undoubtedly the role he played in the Couchiching Conference on the training of applied psychologists, which culminated in the book he wrote in 1967, The Couchiching Report: Training in Professional Psychology in Canada. Ed Webster will be long remembered for his commitment to and promotion of applied psychology at McGill and in Canada, for his contributions to the literature in personnel selection, and for his support of the work of students and colleagues. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Groundwater Flow and Contaminant Transport Simulation with Imprecise Parameters

A methodology has been developed in this study wherein a genetic algorithm (GA) is used to find a global optimal solution to a groundwater flow and contaminant problem by incorporating an artificial neural network (ANN) to evaluate the objective function within the genetic algorithm. The study shows that an ANN-GA technique can be used to find the uncertainties in output parameters due to imprecision in input parameters. The ANN-GA methodology is applied to five case studies involving radial flow in a well, one-dimensional solute transport in steady uniform flow, a two-dimensional heterogeneous steady flow, a two-dimensional solute transport, and a two-dimensional unsteady groundwater flow to demonstrate the efficiency and effectiveness of the developed algorithm. The results show that, with this approach, one can successfully measure the uncertainty in groundwater flow and contaminant transport simulations and achieve a considerable reduction in computational effort when compared to the vertex method that has been widely used in the past.     

Review of Repairing your marriage after his affair: A woman’s guide to hope and healing.

Reviews the book, Repairing your marriage after his affair: A woman's guide to hope and healing by Marcella Bakur Weiner and Armand DiMele (1998). This book addresses the difficult task of reestablishing trust in the marriage after an affair and offers specific guidelines for discussions that aid the healing process. The authors recommend exercises that help the couple break down the barriers to intimacy and cultivate greater happiness in the marriage. They also include a chapter for handling children during this critical period and suggest ways to minimize the trauma to them. Their advice is sound and their suggestions for recovery quite practical and valuable to any woman struggling to come to terms with her partner's affair. The authors provide some helpful information to the woman contending with this problem and hoping to continue in the marriage. It is likely to appeal most to the woman reluctant to enter individual or couple therapy with her husband, yet needing some help in coping with the intense emotions at this confusing time; it can help her in deciding whether to leave or stay in the marriage. The book can also be used as an adjunct to therapy for women already in treatment who might want supplemental reading. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Assessing Infrastructure Project Innovation Potential as a Function of Procurement Mode

The delivery of infrastructure projects as long-term capital investments is impacted in most cases by critical issues of budget constraints, program delays, quality and safety concerns, and an increasingly complex stakeholder environment. Innovation, as it relates to the physical, process, organizational/contractual, and financial/revenue dimensions of a project, has a central role to play in not only contributing to the requirements set for a wide variety of project performance metrics but also improving upon them. Proposed in this paper is a theory in the form of a set of factors (drivers/inhibitors to innovation) and related state values that influence the potential for the identification and adoption of innovations that improve project efficiency or offer increased value. This theory is embedded in a supporting assessment framework to assist with selecting and structuring a project’s procurement mode to enhance the innovation potential of a project from the perspective of a government agency tasked with such decisions. The framework was developed in response to a lack of tools to help practitioners with tasks relating to innovation assessment, especially in regard to conducting a public sector comparator analysis when a public–private partnership procurement mode is being considered among others; and aligning terms and conditions in bid documents, requests for proposals, and concession agreements in a way that fosters beneficial innovations to the extent that factor states can be controlled. The framework provides the project evaluation process with a means of assessing project innovation potential at the very front end of the procurement mode selection process, and is meant to be comprehensive yet simple and easy to use in practice. It can also be used by researchers to help analyze on a postproject basis reasons why innovations were or were not adopted for a specific project context. The framework is applied to case studies on two infrastructure projects in Scandinavia and the United States to demonstrate its application and to assess the role that choice of procurement mode had in influencing the innovations used.     

Organizing Large Projects: How Managers Decide

Now tools will help managers design organization structures for large engineering and construction projects. An improved understanding of how managers decide in structuring project organizations is necessary to develop these tools and to assist managers in the systematic design of organizations tailored to meet project goals under unique situations. This paper reports a portion of results from research conducted to determine current practices in project organization design. The conclusion that adaptation dominates this process leads to several implications for industry professionals and researchers wishing to improve project performance. Recognizing the role of adaptation in current practices of organizational structuring will allow managers to avoid inertia and systematically design organizations. Researchers can assist by expanding variables in organization theory to better capture project situation and structure and by developing new tools to assist in systematic organization design.     

Compatibility with Jet A-1 of a GCL Subjected to Freeze–Thaw Cycles

Needle-punched geosynthetic clay liner (GCL) specimens subjected to 0, 5, and 12 freeze–thaw cycles in the laboratory, and GCL specimens recovered from a composite barrier wall in the Canadian Arctic after 1 and 3 years were examined to assess the hydraulic conductivity/permeability with respect to both deionized deaired water and Jet A-l. The GCL specimens recovered from the field after 3 years had a hydraulic conductivity with respect to water that was approximately 30% less than that of the GCL specimens subjected to 12 initial freeze–thaw cycles in the laboratory, suggesting that the laboratory conditions are more severe than field conditions. The combined effects of both the freeze–thaw cycles and Jet A-l permeation increased the permeability. This increase is attributed to the creation of macropores in the GCL due to freezing and to an expansion of free-pore space due to contraction of the double layer caused by permeation of Jet A-l. Although there was an increase in permeability due to the combined effect of freeze–thaw and permeation by Jet A-l, the effect was relatively small and the results suggest that the GCL continued to exhibit good performance as a hydraulic barrier when subject to extreme climatic conditions and hydrocarbons both in the laboratory and in the field.