商丘铝厂:任一计算机都可实时监控槽况

河南省商丘铝厂不断提高电解槽智能化管理水平,成功地把铝厂200kA系列等三个系列计算机模糊控制系统与公司局域网接入。使公司局域网上的任何一台计算机,装上商丘铝厂授权安装的客户端软件,就可直接查询各系列每台电解槽的实时生产状况,且监控页面与工控机完全相同。实现了“足不出户,尽知槽况”。这是继年     

计算机原理辅助教学软件的研制

用Ｃ语言实现了ＣＡＩ系列的运算器模块各种信息流劝的全过程，使计算机原理的教学更加形象和直观，同时辅助教学软件将系列化。它的形成为学习研究计算机提供了有力的工具。     

理化之窗

理化之窗全自动Ｘ射线衍射仪Ｄ／ｍａｘ－２０００系列日本理学公司开发成功的Ｄ／ｍａｘ－２００（系列是一种高精密度的衍射仪系统，它是改有的Ｄ／ｍａＸ－１０００系列的第Ｍ代改进产品。该系统配置３２位美国ＨＰ公司ＨＰＡＰＯＬＬＣ９０００系列计算机，１６ＭＢＲ...     

80kA上插自焙槽计算机控制系统

以青铜峡铝厂８０ｋＡ系列上插自焙槽为例，叙述了该系列电解槽计算机控制系统的结构及功能。该系统采用集中—分散式控制，通讯为三级分布式、二层总线的网络结构。系统生成后，能够在恶劣环境下安全可靠运行，提高了生产过程的自动化水平。为计算机等高新技术在铝电解生产中的应用做了有益的尝试。     

信息技术发展十大趋势

１．微处理器和计算机功能将成倍提高。２．国际标准化加速推进。３．战略性的跨系统应用结构计算机系列兼容。４．微机操作系统从多种并存到系列兼容。５．信息系统由第一代塔架结构转向第二代平面蛛网结构。６．软件生产与维护从手工转向工程，从劳动集约转向知识集约。７．组装密度高、可靠性高、自动化程度高、成本低的表面安装技术成为主流。８．声音、图像、动画的多媒质信息处理发展到实用。９．光缆、通信将更广泛投入使用。１０．信息处理智能化、神经网络计算机开始应用。信息技术发展十大趋势     

WinCC在喷煤四系列改造中的应用

2001年10月包钢炼铁厂对高炉喷煤系统四系列进行了改造.重新设计电气控制原理图、设计计算机配置、和重新编制计算机控制程序.对原有的操作台进行了改造,取消造价高且制约生产发展的CP528,改由先进的上位机WinCC软件系统监控,实现了整个网络系统的连接.     

梅山选矿厂细碎车间分布式控制系统设计

介绍了一类基于PLC的分布式控制系统（DCS）的设计任务与方案。其主要内容为上位机软件和现场总线网络，即PLC与计算机间的Controller Link通信技术和Omron α系列PLC与Cpm1a系列PLC间的通信协议宏功能。     

关于冶金系统微型计算机优选系列

一、迅速确定冶金系统微型 计算机优选系列 由于大规模及超大规模集成电路的飞速发展,微型计算机不断地更新换代,进入七十年代以来,大约每二至三年就更新一次,而每一次都带来了性能的提高、功能扩大、价格降低、以及可靠性增强。目前微型计算机的性能已复盖了小型和中型计算机,并已     

合金配料称量系统的改造与应用

2004年3月，我们对一炼钢转炉合金配料秤进行低成本自动化改造，采用新型内垫耐磨衬板的固定式料斗＋校验平台＋PGM系列称重模块＋智能称重仪表＋气动阀门＋变频调速＋PLC控制＋主控计算机＋数据采集与网络信息的设计。其称重装置和控制部分均采用国内外的先进产品，在称量装备方面设计创新、技术先进；在控制软件方面采用国内最新的模块化结构，     

AF50彼施涅500kA电解槽

彼施涅铝业公司通过10年在三台样槽上所做的大量实验，开创了新一代的电解槽。借助高级计算机模型进行的设计，获得了稳定的磁场和优化了电解车间的通风和温度，这种样槽，随着槽壳通风的改善和阳极组件的改进，使其在500kA的电解系列实际运行中电流效率达到95％。AP50电解槽的流程控制以对电解质的温度和高度的自动测量为特征，提高了热的稳定性，改进了氧化铝下料的方法，几乎完全消灭了阳极效应，保证CO2散发量，接近阳极消耗所产生CO2的水平。使用AP50型槽的工艺，一个336台槽的电解系列，一年可产铝46万吨，与AP30型槽的两个系列的铝电解厂比较，每个雇员的劳动生产率可提高35％，投资费用降低15％。     

The relevance of Aristotle’s conception of eudaimonia for the psychological study of happiness.

According to the ethical system of eudaimonism, a philosophy that predates Aristotle, individuals have a responsibility to recognize and live in accordance with their daimon or "true self." The daimon refers to the potentialities of each person, the realization of which represents the greatest fulfillment in living of which each is capable. The daimon is an ideal in the sense of being an excellence, a perfection toward which one strives and, hence, it can give meaning and direction to one's life. Eudaimonia, then, is activity in accordance with one's daimon. This is what is considered worth having in life. Since Aristotle in the Nicomachean Ethics is concerned with the proper ends of human functioning, he rejects the view of eudaimonia as a subjective state equivalent to, or similar to, hedonic enjoyment. But if psychologists are to be able to make productive use of the Aristotle's conception of eudaimonia, it must be rendered in a form more congenial to the field. In pursuing this goal, I have found it necessary to take several significant departures from the Aristotelian perspective, while I have endeavored to remain true to Aristotle's ethical objectives. The most important of these departures is to consider eudaimonia to have a subjective component embodying the experiences that flow from efforts to live in truth to one's daimon by striving to develop one's aptitudes and talents for purposes deemed worth having in life. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

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)     

Performance and Strategy of Chinese Contractors in the International Market

The past decade has witnessed the steady growth of Chinese international contractors (CICs), who have become important and influential players in the international market. The enormous development demands worldwide, especially in developing countries, attract CICs to engage in the market. Similarly, the strong support from the Chinese government plays an important role for the expansion of Chinese contractors globally. Some leading CICs perform very well in certain fields and countries. This brings the competitiveness of CICs to the attention of the international community. The strengths, weaknesses, opportunities, and threats (SWOT) approach was adopted in order to analyze CICs’ strengths, weaknesses, opportunities and threats in international construction markets. Literature from various sources was reviewed in the first instance, which is followed by an interview survey with 42 CICs employees. A SWOT strategy matrix is used to establish a framework that can help CICs to select suitable business development strategies in overseas markets. The applicability of the strategy framework was tested through the case study of two CICs. The strategies to reinforce their positions in the international market were studied based on the SWOT analysis. The results indicate that CICs are on their way to becoming major competitors to other overseas contractors. In essence, the research results offer a valuable reference of practices that construction firms need to master in order to survive and grow in the international market.     

Prepared for the worst: Readiness to acquire threat bias and susceptibility to elevate trait anxiety.

Although people differ in their susceptibility to elevate trait anxiety in response to extended stress, little is known about the cognitive substrate of this particular individual difference. We report three studies designed to evaluate the hypothesis that individual differences in readiness to acquire an attentional bias toward threat cues, in response to a contingency that makes the acquisition of such a bias adaptive, underlie individual differences in susceptibility to elevate trait anxiety in response to extended stress. Our findings confirm that the ease with which such a threat bias can be transiently evoked by experimental conditions that encourage its acquisition predicts the degree to which trait anxiety later becomes elevated by extended exposure to a mild stressor. Furthermore, this reflects the fact that such early measures of attentional bias plasticity predict the later naturalistic acquisition of attentional bias in response to subsequent stress, which in turn is associated with a consequent increase in trait anxiety level. These findings are consistent with our proposed account of individual differences in susceptibility to elevate trait anxiety in response to stress. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The role of estradiol and progesterone in modulating the subjective effects of stimulants in humans.

Although stimulant abuse is a growing problem among women, few studies have focused on factors that may be implicated in potential sex differences. Numerous preclinical studies have indicated that female rodents are more sensitive than male rodents to the behavioral effects of stimulants and that the hormone estradiol is involved in these sex differences. In humans, the subjective response to stimulants is greater in the follicular phase (characterized by moderate estradiol levels and minimal progesterone levels) than in the luteal phase (characterized by elevated estradiol levels and elevated progesterone levels). Differences between men and women emerge only when men are compared with women in the luteal phase; the subjective response to stimulants is similar in men and women in the follicular phase. In contrast to rodents, there is minimal evidence that estradiol enhances the subjective response to stimulants in humans. Rather, the hormone progesterone has been shown to attenuate the subjective response to stimulants, particularly in women. Recent preclinical data confirm that progesterone reduces the behavioral response to stimulants. In summary, there is converging evidence from studies in humans that (a) men and women do differ in their subjective response to stimulants; (b) these sex differences are evident when women are in the luteal phase, when progesterone levels are elevated; and (c) progesterone administration attenuates the subjective response to stimulants. Therefore, the menstrual cycle should be addressed in mixed-gender studies. Moreover, the modulatory effects of progesterone on reducing the positive effects of cocaine may have some clinical utility in treating stimulant abusers. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

FRP Confinement of Square Masonry Columns

The problem of masonry columns subjected to structural deficiency under axial load was studied and reported in this paper. The results of an extensive experimental campaign are presented in order to show the behavior of columns built with clay or with calcareous blocks, commonly found in southern Italy, especially in historical buildings. Rectangular masonry columns were tested for a total of 33 specimens; uniaxial compression tests were conducted on columns taking into account the influence of several variables: different strengthening schemes (internal and/or external confinement), curvature radius of the corners, amount of fiber-reinforced polymer (FRP) reinforcement, cross-section aspect ratio, and material of masonry blocks. Materials characterization was preliminarily carried out including a mechanical test on plain masonry. For all cases the experimental results evidenced a significant increase in load carrying capacity and ductility after FRP strengthening, which identified the columns as ductile elements despite the brittle nature of the unconfined masonry. Differences in mechanical behavior, due to the geometry of the columns, to the nature of different materials, to different strengthening schemes, and to the amount of reinforcement, are presented and discussed in the paper. The calibration of design equations recently developed by Italian National Research Council, CNR was conducted to compare analytical prediction and experimental results. The same procedure was applied to calibrate an analytical model recently published, in which the existing coefficients are related only to clay. Here the model is applied to limestone for the first time. Thus, new important information is furnished to researchers and practitioners involved in structural assessment and strengthening of compressed elements in historical buildings.     

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.     

杂质锌对顶吹炉铜熔炼系统的影响

鉴于杂质锌对顶吹炉生产中产品质量和生产率的不利影响,系统研究了入炉精矿中锌含量对铜熔炼顶吹炉系统冰铜、炉渣、烟尘的影响。结果表明,随着入炉精矿中锌的平均品位由0.88%上升至3.59%:冰铜中锌含量由0.68%上升至2.16%,不利于后续降低吹炼渣及精炼渣中铜含量;电炉渣中的锌含量由2.02%上升至5.80%,将导致更多的含锌铁尖晶石固相在高温下析出,使炉渣熔化温度出现升高趋势;上升烟道烟尘中锌含量增至3.34%,含锌物相增加将引入高熔点、高黏度锌铁尖晶石,诱发半熔融状或致密坚硬的结瘤物产生,难以破碎清除;电收尘系统烟尘率由0.96%提升至6.88%,烟尘中锌含量由4.25%增至8.44%,增加电收尘系统负担,降低除尘效率。     

证人出庭制度的构建

现阶段在我国审判实践中,证人出庭率很低,这对审判方式改革和司法公正都造成了严重影响。究其原因,有传统文化影响、立法上漏洞、国家对证人保护不够以及未给予证人经济补偿等。因此有必要采取完善立法、加强对证人进行保护、强制证人出庭以及对证人进行相应经济补偿等措施,这样有利于提高证人出庭率。