法律法规对钢铁产品中有毒有害物质的限制和钢厂应对策略

介绍了国内外法律法规对钢铁产品中有毒有害物质的限制规定，宝钢在针对这些法律法规的规定进行识别的同时，还研究了用户采购技术规范中的相应规定，确定合适的检化验方法，以验证宝铜的铜铁产品是否符合相关法律法规的规定。根据宝钢的经验，确保钢铁产品符合相关法律法规规定的关键，是对钢铁产品制造过程所使用的原材料进行限制和控制。     

桥梁墩柱钢套箍的质量控制分析

以顺义区机场东路南环立交新建工程主线桥南环立交桥为例，简述了多面体的钢套箍在特殊使用条件下，在加工生产、运输安装等环节的质量控制，通过整个过程的严格执行，取得了较好的效果。     

The relative effects of deprivation of the latent and manifest benefits of employment on the well-being of unemployed people.

This study investigated the relative contributions of the individual latent and manifest benefits of employment to well-being in a sample of 248 unemployed people. Participants completed measures of well-being and the latent (time structure, activity, status, collective purpose, and social contact) and manifest (financial strain) benefits of employment. Significant associations were found between the latent benefits and well-being and between the manifest benefits and well-being. Both latent and manifest benefits contributed significantly to the prediction of well-being, with the manifest benefit accounting for the largest proportion. Although all latent benefits contributed significantly, status emerged as the most important contributor, followed by time structure and collective purpose. Results are discussed in the context of M. Jahoda's (1982) latent deprivation model and D. Fryer's (1986) agency restriction model. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A practical, evidence-based approach for means-restriction counseling with suicidal patients.

Assessing a patient's access to potentially lethal means for suicide and taking steps to restrict access to means are common expectations for reasonable outpatient management of suicidal patients. Although scientific evidence supports means restriction as a suicide prevention strategy, means restriction continues to be infrequently utilized by clinicians, in large part because of the general lack of available training and guidance. The present article reviews the conceptual basis and empirical evidence for means restriction, discusses common barriers to means-restriction counseling, and provides practical procedures and tools (e.g., the means receipt, the crisis support plan) for accomplishing means-restriction counseling in routine clinical practice. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

约束走时层析成像

地震层析成像技术是反演地下速度结构的一种重要方法。与医学ＣＴ不同，一般地震波射线对目的区覆盖不均匀，所获得的数据不充分。在这种情况下，若初始猜测不准，常规的成像方法，如阻尼最小二乘法，ＡＲＴ法等难以获得理想效果。     

爆力运矿采矿法的改进与完善

爆力运矿采矿法能较好地解决倾斜中厚矿体采场内矿石运搬和作业安全问题，具有采切比小、矿石损失贫化低、经济效益好等优点。但是由于各种原因一直未能推广应用。本文针对制约爆力运矿采矿法发展的各种因素，提出了改进的措施和方法，并提出了今后的发展方向和设想。     

从陶瓷仕女图纹看古代女性文化

仕女艺术源远流长。纵观陶瓷仕女图纹，一幅幅优美的画面，一个个靓丽的仕女背后，实则浸染了几千年封建伦理道德意识对女性的观赏和消费价值的倾向，隐含着男权社会对女性的身体乃至精神的种种禁锢和束缚。这些凄美的仕女图纹深深折射出古代女子的无尽帐惘和万般沉抑之情。     

用遗传算法反演层速度

遗传算法是近期发展起来的处理非线性最优化问题的一种方法。近两年，它已成为地球物理应用领域中的重要研究课题。     

能源经济发展中的利益分配问题探析——以陕北地区为例

自然资源开发中利益关系的调整是资源富集区所共同面临的问题。对于陕北这样一个能源富集区而言,合理的利益分配机制将对能源资源的开发、利用和保护产生重大的影响。对陕北能源经济发展中的利益分配问题进行深入分析,协调陕北地区能源资源开发中国家利益、地方利益与矿区群众利益的冲突,必须通过改革原有的开发管理体制,顺畅利益表达渠道,转变财税政策,建立补偿机制,只有这样才能有利于陕北地区能源经济的可持续发展。