我国冶金标准样品发展及现状

对冶金标准样品的起源、现状和发展进行了述评,特别是对物理性能标准样品是潜在的研制方向、标准溶液的研制前景广阔、铸铁类标准样品的研制水平仍需要提高以及新材料、新的检测领域的标准样品有待开发研制等方面进行了论述.     

国外冶金和材料标准样品的现状与发展

标准样品对于科学技术发展和经济建设起着重要的作用。本文对于国外冶金和材料标准样品的起源、发展、现状进行了描述,分析了国外近百家研制单位提供的主要产品类型,从样品的状态、属性及等级等不同角度进行了分类分析,进而阐述了冶金和材料标准样品的应用范围及在选择和使用上的五大基本原则,展望了冶金和材料标准样品研制工作的主要方向,尤其是气体元素类标准样品及新材料、新领域的标准样品的研制。     

冶金标准样品研制、销售信息网2003年年会在西安召开(一)

为了使冶金标准样品的研制、销售工作更好地适应社会主义市场经济发展的要求 ,提高研制质量 ,规范市场秩序 ,加强研制与销售单位之间的联系合作 ,总结交流冶金标准样品研制、销售工作的经验 ,冶金标准样品研制、销售信息网于 2 0 0 3年 9月 2 2日至 2 5日在陕西省西安市召开了信息网第七次年会。参加会议的有冶金标准样品定点研制单位、定点销售单位共 38个单位 5 0名代表。冶金工业信息标准研究院党委书记胡茂友代表冶金标准样品技术委员会王丽敏主任出席了这次会议 ,中船重工第十二研究所副所长赵峰彦同志到会致词冶金标准样品研制、销售…     

抚顺铝厂推出GB1196—93《重熔用铝锭》的最新纯铝标样

抚顺铝厂是国内第一家铝厂,曾研制了国内第一批铝标样。作为中国有色金属总公司标准样品定点研制单位,二十余年来研制了铝、铝合金、镁、硅等百余种标样。1988年曾研制完成CSBA68050～68056—89国家一级标准样品—铝光谱标准样品(块状、棒状)及铝化学标准样品,满     

北京冶金标准样品技术开发公司

北京冶金标准样品技术开发公司是由冶金工业信息标准研究院于1992年3月组建成立的。冶金工业信息标准研究院是冶金标准样品分技术委员会秘书处与冶金标准样品研制销售信息网秘书处挂靠单位。依托于冶金标准样品技术归口、组织协调研制和销售的优势,经过十几年的经营开发,公司目前已拥有全国30多个定点研制单位研制的冶金标准样品。     

冶金标准样品研制、销售信息网2000年年会纪要

为了使冶金标准样品的研制、销售工作更好地适应社会主义市场经济发展的要求 ,提高研制质量 ,规范市场秩序 ,加强研制与销售单位之间的联系合作 ,总结交流冶金标准样品研制、销售工作的经验 ,冶金标准样品研制、销售信息网于 2 0 0 1年 5月 16日至 19日在福建省厦门市召开了信息网第六次年会。参加会议的有冶金标准样品定点研制单位、定点销售单位共 4 0个单位 5 5名代表。冶金工业信息标准研究院副院长王丽敏同志出席了这次会议。会议由冶金标准样品研制、销售信息网副网长柯瑞华主持 ,王丽敏副院长做了讲话 ,伍千思副网长做了 2 0 0 0年度…     

微碳锰铁、金属锰系列标准样品研制

论述了微碳锰铁和金属锰系列标准样品的设计、研制过程。研制过程满足相关标准和规范的要求。部分特性量值,经电感耦合等离子体原子发射光谱仪和x一射线荧光光谱仪检查,成线性良好。该系列标准样品的研制过程,是铁合金标准样品研制工艺的一种新尝试。     

我国标准物质/标准样品发展综述

介绍了标准物质/标准样品的起源和发展,阐述了我国标准物质/标准样品的管理、现状及冶金标准物质/标准样品的研制方向。     

北京冶金标准样品技术开发公司

北京冶金标准样品技术开发公司是由冶金工业信息标准研究院于1992年3月组建成立的。冶金工业信息标准研究院是冶金标准样品分技术委员会秘书处与冶金标准样品研制销售信息网秘书处挂靠单位。依托于冶金标准样品技术归口、组织协调研制和销售的优势,经过十几年的经营开发,公司目前已拥有全国30多个定点研制单位研制的冶金标准样品。销售客户达国内30多个省市自治区。     

北京冶金标准样品技术开发公司

北京冶金标准样品技术开发公司是由冶金工业信息标准研究院于1992年3月组建成立的。冶金工业信息标准研究院是冶金标准样品分技术委员会秘书处与冶金标准样品研制销售信息网秘书处挂靠单位。依托于冶金标准样品技术归口、组织协调研制和销售的优势,经过十几年的经营开发,公司目前已拥有全国30多个定点研制单位研制的冶金标准样品,销售客户达国内30多个省市自治区。并且与美国、英国、法国、德国、澳大利亚、印度、日本等国家和地区的钢铁企业及驻京机构建立了业务关系,在海内外享有盛誉,是国内冶金标准样品齐全。具有良好信誉的销售单位之一。     

某铀矿区水稻土—地表水铀含量对稻米铀含量的影响

以水稻土—地表水铀含量为视角,从水稻土剖面铀含量分布规律、水稻土与下伏岩体稀土元素特征、不同河流不同河段水稻土—地表水—稻米铀含量特征、水稻土与稻米铀含量关系4个方面研究721铀矿区稻米铀含量成因。结果表明,水稻土剖面铀含量从表层至半风化花岗质基岩层呈明显降低的特征,说明水稻土铀含量高的原因不是土壤母质铀含量高;岩石与水稻土稀土元素标准化模式均表现为向右倾斜型,均属轻稀土富集型,轻稀土分馏明显,表明水稻土为还原环境,吸附作用较强;不同河流不同河段水稻土—地表水—稻米铀含量平均值的特性均为上游最低、中游最高、下游次之。铀矿区地表水环境符合铀元素在水稻土中被平衡吸附的动力学条件,有利于铀元素在矿区内河流中游地区的水稻土中沉淀富集;正在采矿区水稻土与稻米铀含量具有高度的空间耦合性,呈指数正相关关系,相关系数0.749。矿区内河流沿岸稻米铀含量的分布特征是由铀元素的迁移途径决定的"采矿活动(铀尾矿露天堆放)→地表水→水稻土"。     

Integrating motivational, social, and contextual work design features: A meta-analytic summary and theoretical extension of the work design literature.

The authors developed and meta-analytically examined hypotheses designed to test and extend work design theory by integrating motivational, social, and work context characteristics. Results from a summary of 259 studies and 219,625 participants showed that 14 work characteristics explained, on average, 43% of the variance in the 19 worker attitudes and behaviors examined. For example, motivational characteristics explained 25% of the variance in subjective performance, 2% in turnover perceptions, 34% in job satisfaction, 24% in organizational commitment, and 26% in role perception outcomes. Beyond motivational characteristics, social characteristics explained incremental variances of 9% of the variance in subjective performance, 24% in turnover intentions, 17% in job satisfaction, 40% in organizational commitment, and 18% in role perception outcomes. Finally, beyond both motivational and social characteristics, work context characteristics explained incremental variances of 4% in job satisfaction and 16% in stress. The results of this study suggest numerous opportunities for the continued development of work design theory and practice. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Longitudinal linkages between sibling relationships and adjustment from middle childhood through adolescence.

The links between changes in sibling conflict and intimacy and changes in perceived peer social competence and depression symptoms were examined from middle childhood through adolescence. Participants were mothers, fathers and first- and second-born siblings from 197 White, working/middle class, two-parent families. Peer competence peaked in early adolescence and then declined; depression symptoms were high in middle childhood and, for girls, in middle adolescence. Controlling for parent-offspring relationships and sibling and parent adjustment, increases in sibling conflict were linked to increases in depression symptoms, and increases in sibling intimacy were linked to increases in peer competence and, for girls, decreases in depression symptoms. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Changes in beliefs, catastrophizing, and coping are associated with improvement in multidisciplinary pain treatment.

To examine the associations between changes in cognitions and coping and multidisciplinary pain treatment outcomes, the authors had 141 patients with chronic pain complete measures of adjustment, beliefs, catastrophizing, and coping; in addition, their significant others rated patient physical functioning at pretreatment, posttreatment, and 6- and 12-month follow-ups. Decreases in guarding and resting and in the belief that pain signals damage were associated with decreases in patient disability. Increases in perceived control over pain and decreases in catastrophizing and in the belief that one is disabled were associated with decreases in self-reported patient disability, pain intensity, and depression. The results are consistent with the hypothesis, derived from cognitive-behavioral models of chronic pain, that the outcomes of multidisciplinary pain treatment are associated with changes in patient cognitions and coping responses. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

胶东玲珑金矿区煌斑岩及其蚀变岩地球化学特征

煌斑岩与金矿化在时间、空间和成因方面关系密切。选择胶东玲珑矿区煌斑岩及其蚀变岩开展56项元素地球化学研究,结果发现胶东玲珑金矿区煌斑岩在成分上相当于高钾玄武质粗面安山岩,相对中国基性岩富K2O、Fe2O3、P2O5、轻稀土、Th、U、Pb、Be、Sr、Ba、Li、Rb、F、Cr,贫Na2O、Ti2O、CaO、MnO、重稀土、Nb、Ta、Sc、W、Bi、Zn、Cd、As、Co、V、B。玲珑金矿区蚀变煌斑岩相对新鲜煌斑岩贫Na2O,富MnO、Pb、Zn、As、W、Sb、Cd、Au、Ag,这表明引起煌斑岩蚀变的这期热液流体富含W、Pb、Zn、Cd、Au、Ag、As、Sb等热液成矿元素。花岗岩风化指数WIG可较好地适用于煌斑岩蚀变过程的研究,且较蚀变指数CIA在反映蚀变程度上更灵敏。     

Introduction to the special section on cognitive processes and psychotherapy.

Theoretical models featuring cognitive processes have played a fundamental role in advancing knowledge of psychopathology and its treatment and have emphasized the importance of cognition in psychotherapy. Recognition of the importance of cognition in psychotherapy has led to a number of questions that are addressed by the articles in this special section of the Journal of Consulting and Clinical Psychology. Cognitive therapy is well represented in the articles in this special section, but therapeutic procedures that do not represent typical cognitive therapy are also examined. The articles in this special section focus on homework in the modification of cognition, cognition in the treatment of anxiety in adults and in children, change in depressive cognitions in children, cognition and rapid change in the treatment of depression, and the role of cognition in the treatment and prevention of depression that is recurrent. Examination of these types of questions holds the possibility of advances in existing treatments and the possibility of innovations in new treatments. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Educational Partnership to Establish Engineering/Construction Management Graduate Programs in Algeria

This paper describes a partnership between the University of Missouri–Rolla and the Université Abou-Bekr Belka?d de Tlemcen in Algeria in order to support the development of programs of instruction and faculty training in Algeria in the areas of engineering and construction management in order to create a self-sustaining educational infrastructure in Algeria. Specifically, the partnership aims to provide educational and technical assistance to Algeria in order for them to develop: (1) new graduate programs in engineering and construction management and (2) modern teaching methodologies including Internet and distance learning. Objectives of the partnership were to provide engineering and construction management skills and expertise in order to achieve international standards in the management area. The desired impact is summarized in terms of the ability to identify operations problems and implement solutions for improved strategic competitiveness, make sound decisions, plan, and control the key resources of an organization—money and people, critically analyze, evaluate, improve, or adapt existing technical and managerial systems, design and develop new technical and managerial systems, and coordinate different projects with a better harmony and cost effectiveness. The long-term expected outcomes of the partnership are Algerian faculty with strong backgrounds in engineering and construction management, a self-sustained learning environment for Algerian institutions, including engineering management and construction management graduate programs, continuing education, and short courses, and Internet-based multimedia teaching material for collaboration between the Algerian institutions and local industry.     

小秦岭典型地段植物重金属污染特征分析

在研究区采集了132组植物样品,并对样品中As、Hg、Cu、Zn、Pb、Cd、Cr、Ni 8种重金属含量进行了测试,采用环境指数作为植物重金属污染评价方法来描述受污染程度,得出了不同种类植物的重金属污染状况。通过对比分析富集系数,研究了重金属在植物中的富集特征。其研究结果表明:不同植物中重金属含量超标倍数和吸收量明显不同,显示出选择性富集特征。该次采集的所有植物中As、Hg的含量都不超标;红薯中Cd和Pb的含量超标倍数最高,玉米中Zn的含量超标倍数最高,Cu也比较容易在粮食作物中累积且以红薯最为突出;蔬菜中Pb、Cd、Zn的含量超标倍数最高,以白萝卜、白菜最为突出;水果中Pb的含量超标倍数最高,且苹果和柿子都较为突出。该次采集的植物对Pb的吸收能力都很强,只有玉米对Zn的吸收能力比其对Pb的吸收能力略强。受到重金属污染的土壤所种植的粮食、蔬菜和水果均有不同程度的富集,其对重金属吸收强弱的排序分别为:白菜、白萝卜和胡萝卜中,PbZnCuNiCrCdHgAs;红薯和茄子中,PbCuZnNiCrHgCdAs;南瓜和苹果中,PbCuZnNiCrHgAsCd;柿子中,PbNiCuZnCrHgAsCd;玉米中,ZnPbCuNiCrHgAsCd;西红柿中,PbZnCuNiCrAsCdHg。     

Growth in temperament and parenting as predictors of adjustment during children's transition to adolescence.

The author examined relations among demographic risk (income, maternal education, single-parent status), growth in temperament (fear, irritability, effortful control), and parenting (rejection, inconsistent discipline) across 3 years and the prediction of children's adjustment problems in a community sample (N=190; ages 8-12 years at Time 1). Family income was related to higher initial levels of fear, irritability, rejection, and inconsistency and lower effortful control but was not related to changes in these variables. Higher initial rejection predicted increases in child fear and irritability. Higher initial fear predicted decreases in rejection and inconsistency. Higher initial irritability predicted increases in inconsistency, and higher initial effortful control predicted decreases in rejection. When growth of parenting and temperament were considered simultaneously, increases in effortful control and decreases in fear and irritability predicted lower Time 3 internalizing and externalizing problems. Increases in rejection and inconsistent discipline predicted higher Time 3 externalizing, although sometimes the effect appeared to be indirect through temperament. The findings suggest that temperament and parenting predict changes in each other and predict adjustment during the transition to adolescence. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A Latent Growth Curve Analysis of Late-Life Sensory and Cognitive Function Over 8 Years: Evidence for Specific and Common Factors Underlying Change.

Correlations among rates of change in sensory and cognitive functioning in adulthood were evaluated. Measures of Vision, Hearing, Memory, Speed and Verbal ability were obtained in 1992, 1994, and 2000 in the Australian Longitudinal Study of Aging (N=2,087 at baseline). Data from 1,823 participants who undertook at least 1 clinical assessment were analyzed using latent growth curve models. A significant moderate-sized association between rates of change in Memory and Vision was found. This remained after statistically controlling for the effects of age, gender, education, self-rated health, medical conditions, and depressive symptoms. Rate of change in Hearing was weakly associated with rate of change in Memory. The results support a theory incorporating a major role for unique factors in addition to common factors underlying sensory and cognitive change in old age. (PsycINFO Database Record (c) 2010 APA, all rights reserved)