半固态非枝晶组织合金的制备技术

较详细地论述了国内外各种半固态非枝晶组织合金的制备技术，探索了各种技术的机理，评价了各种技术的优缺点，并介绍了作者现在的研究工作。     

工矿企业铁道车辆螺栓连接松动原因及防松方法浅析

针对工矿企业铁道车辆各种常见的螺栓松动现象进行了详细的阐述，系统全面的分析了产生松动的各种不同的原因，并针对各种情况分别提出了切实可行的解决对策。     

钢种研究

评论:论述了钢轨及内燃机和机车制造中采用的各种表面处理,列举了车轴,齿轮,钢轨和各种钢轨连接件运用表面处理的实例。用成分在C0.50～0.72,Mn0.71～1.27范围内的四个钢轨钢试样表示了轨头硬度与耐磨性间的关系。阐明了提高钢轨耐蚀性的各种方法,列举了检验各种钢轨钢耐蚀性能     

湿法冶金渣中元素硫的回收方法

本文简要说明了从湿法冶金渣中回收元素硫的必要性，针对湿法冶金过程产生的各种含硫物料，详细介绍了回收元素硫的各种方法的原理及国内外各种典型工艺，并讨论了各方法的优缺点。     

粉末冶金结构零件焊接

讨论了最常用于连接铁基粉末冶金结构零件的各种焊接方法.资料主要来源于关于各种焊接方法的以前的出版物和文献评述.介绍了有用的设计方法与焊接技术以及各种粉末冶金材料的焊接性.     

超细铜粉的制备工艺研究进展

详细介绍了超细铜粉的各种制备方法,包括各种物理和化学方法,并对各种制备方法的过程、优缺点及其应用情况进行简要评述,指出了今后超细铜粉制备需要关注的问题,点明了今后超细铜粉的研究方向。     

钨铜复合材料的制造工艺

本文综述了钨铜系复合材料的各种生产工艺，详细分析各种工艺的特点。     

热连轧机带钢甩尾的原因分析

介绍热连轧机甩尾的各种现象,阐明了板型、设备、工艺参数等特别是温度、活套对甩尾的影响。以及对各种现象的甩尾进行原因分析,提出了各种原因引起甩尾的对策和措施。     

粉末冶金连接方法、材料与工艺

本文将讨论在铁基粉末冶金材料与零件连接中最常用的各种连接方法。主要对以前发表的关于各种连接方法的资料与文献进行综述。列出了有用的设计资料及生产工艺,同时确认了各种粉末冶金材料组成的可焊性。     

电渣冶金法制造轧辊技术研究进展

系统介绍了目前国内外采用电渣冶金法制造轧辊的各种工艺,分析了各种工艺的优缺点,介绍了目前国内外电渣冶金工艺制造轧辊的技术研究进展状况,着重介绍了近几年国内外所研究和开发的各种新型电渣冶金法制造轧辊工艺及其性能.     

Comparing two diagnostic tests against the same "gold standard" in the same sample

Methods are proposed for comparing two diagnostic tests for the same data where a threshold for positive for each test is specified. One method contrasts the diagnostic tests' estimated risks. A second method compares the two tests' kappa coefficients. When thresholds for positive test results are specified a priori, maximum likelihood estimators and their asymptotic variances are derived and test statistics are presented for both case-control and naturalistic methods of sampling. The bootstrap is proposed as a method to assess differences in risk estimators when thresholds for positive test results are chosen by scanning the data. Examples are given to illustrate the methods.     

Genetic activity profiles of anticancer drugs

The results from short-term tests for genetic and related effects, abstracted from the open literature for 36 anticancer drugs, are examined in this review. Data for 27 of these agents are available in the EPA/IARC Genetic Activity Profile (GAP) database. Data summaries, including data listings and activity profiles, are presented for nine anticancer drugs added to the GAP database for this analysis. Genetic toxicity data from the recent literature are included for the additional agents to provide a broader representation of the categories of drugs being evaluated. These categories, based on the chemical mode of action, are covalent and noncovalent DNA-binding drugs, topoisomerase II inhibitors, antimetabolites, mitotic spindle inhibitors, and drugs which affect endocrine function. The qualitative data for all 36 drugs are summarized in this report and findings are presented from pair-wise matching of genetic activity profiles, based on test results in common, for some chemical analogs. The significance of germ cell test results for some of these drugs and their implication in assessing risk of heritable genetic disease are discussed.     

Models of helping and coping.

Draws a distinction between attribution of responsibility for a problem and attribution of responsibility for a solution. Four general helping models are derived. In the "moral" model, actors are held responsible for both problems and solutions and are believed to need only proper motivation. In the compensatory model, people are responsible only for solutions and are believed to need power. Individuals in the medical model are responsible for neither problems nor solutions and are thought to need treatment. In the enlightenment model, actors are responsible for problems but are unable or unwilling to provide solutions; they need discipline. It is maintained that each set of assumptions has characteristic consequences for the competence, status, and well-being of actors and that the wrong choice of model in a situation will undermine effective helping and coping. Competing models of responsibility in education, psychotherapy, law, and welfare are described, and research on attribution of responsibility is recommended as a way of addressing problems of both theoretical and social significance. (128 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reliability Analysis of Plank Decks

The objective of this study is to summarize the load and resistance criteria for highway bridge plank decks, and to estimate the reliability of plank decks designed by the AASHTO Code. Both transverse and longitudinal planks for a variety of typical stringer spacings and plank sizes are considered. Truck traffic load data are based on the model used to calibrate the 1994 AASHTO LRFD Code. However, for plank decks, wheel load rather than whole vehicle weight is most important, and these statistics are developed for this study. For wood planks, dead load and dynamic load are not significant. The limit state considered is flexural strength, and resistance statistics are presented for wood planks in terms of modulus of rupture. Special flat-wise use data are presented to account for section aspect ratio as well as edge of load application. The reliability analysis is carried out using the procedure developed for calibration of AASHTO LRFD. Reliability indices for both the AASHTO Standard and AASHTO LRFD Code are presented for plank decks. The results indicate that there are considerable differences in plank reliability indices. Causes of inconsistencies in safety are identified.     

Cerebral mechanisms underlying facial, prosodic, and lexical emotional expression: A review of neuropsychological studies and methodological issues.

Cortical contributions to human emotional expression are examined with a focus on interhemispheric (right vs left) and intrahemispheric (anterior vs posterior) mechanisms. This article reviews behavioral studies of emotional expression in brain-damaged patients with unilateral lesions and in normal adults. Studies involving facial, prosodic, and lexical (verbal) communication channels are reviewed for patients; facial asymmetry studies are reviewed for normal Ss. Data are presented separately for posed and spontaneous conditions and for positive and negative emotions. Findings support right-hemisphere dominance for emotional expression, especially for prosodic and lexical expression in brain-damaged patients and for facial expression in normal Ss. Methodological factors are suggested to account for differences among facial expressions studies in brain-damaged patients. The data are discussed in terms of neuropsychological theories of emotion and directions for future research. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

盘活存量优化结构是地方冶金工业发展当务之急

通过对全省１１个市（地）地方冶金工业调查、认识现状、总结经验：分析存在问题，探索产业发展路子，提供制定产业政策依据，提出行业管理政策建议。     

The application of temporal correlation techniques in psychology.

"Definitions and computation procedures for various temporal correlation techniques are presented. These techniques include serial correlations for discrete data and correlation functions for continuous data. Specifically described are autocorrelations for temporal relatedness within one series of data, and crosscorrelations for such relatedness between two series. These techniques are appropriate for discovery of both cyclical and noncyclical temporal phenomena. Various applications of temporal correlation techniques within psychology are described." 29 references. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Study of the Possibility of Obtaining Non-Decomposing Slag During Low-Carbon Ferrochrome Production

Metallurgist - Methods are analyzed for stabilizing self-disintegrating slags in melting low-carbon ferrochrome, and the main reasons for breakdown are considered. Four methods are shown for...     

浅谈加工模具中刀具材料的选用

分析了焊接切削用刀具在切削性能和加工精度方面的不足,比较了新型模具材料的优缺点,认为氮化硅系陶瓷刀具和碳化钛基硬质合金刀具。适合加工小型模具,而大型模具使用涂层硬质合金刀具较为合适。     

Drawdowns due to Intermittent-Pumping Cycles

This paper offers solutions for drawdowns due to intermittent pumping cycles or cyclic pumping, which are high accuracy approximations of the series of Theis functions superimposed in time. The proposed approximation formulas are an improvement over the earlier works. The earlier approximations are valid only if the number of pumping cycles is greater than 10 and involve gamma functions that are less convenient to evaluate than the rational approximation formulas offered in this paper. The proposed approximations are valid for any number of pumping cycles and involve simple functions that can be computed even using a calculator. The drawdown functions are defined for the drawdowns at the end of pumping or shutoff periods. The proposed expressions for these functions are also suitable for the estimation of aquifer parameters by plotting the observed drawdowns on semilogarithmic paper. Procedures for estimation of storage coefficient and head loss at the well from cyclic pumping drawdowns are not available. This paper also offers procedures for the estimation of transmissivity, storage coefficient, and head loss at the pumped well from the observed intermittent (cyclic) pumping drawdowns.