Influence of Composition of Sm2O3-Containing Rare Earth Glass on Its Absorption Spectrum

Lanthanidemetalsarethe 5 7thto 71thelementsintheperiodictable ,thetrivalentionsforlanthanideareofvalenceelectronshell 4f0～ 14 6s2 ,whicharefairlystablewhenthe 4felectronsub layerisemptyoral mostempty ,halffullorfull .Becauseofbigenergydifferencebetweenba…     

Fabricating Buffer Layers for YBa2Cu3Oy Coated Conductor by Surface Oxidation Epitaxy

Coated conductor of YBa2Cu3Oy(YBCO) withhighsuperconducting critical current (IC)is promisingfor many applications . To decrease weak link andlarge grain boundary angle it is i mportant to achievebiaxial textured YBCO.Sofar ,a fewtechniques havebeen appli…     

Remembering the Good, Forgetting the Bad: Intentional Forgetting of Emotional Material in Depression.

The authors examined intentional forgetting of negative material in depression. Participants were instructed to not think about emotional nouns that they had learned to associate with a neutral cue word. The authors provided participants with multiple occasions to suppress the unwanted words. Overall, depressed participants successfully forgot negative words. Moreover, the authors obtained a clear practice effect. However, forgetting came at a cost: Compared with the nondepressed participants and with the depressed participants who were instructed to forget positive words, depressed participants who were instructed to forget negative words showed significantly worse recall of the baseline words. These results indicate that training depressed individuals in intentional forgetting could prove to be an effective strategy to counteract automatic ruminative tendencies and mood-congruent biases. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

彩管用荫罩框架钢带WYK-1的研制

介绍了彩管用荫罩框架钢带从市场调研、实验室试验到工业性生产试验过程;详述了高纯净超低碳低铝钢的成份设计、热轧和冷轧工艺技术;简介了用户的应用效果.     

桃花嘴铜金铁矿床成矿作用与矿床成因的探讨

根据资料及主要以作者多年来矿山地质工作经验对桃花嘴铜金铁矿床的地层、构造、岩浆岩、围岩蚀变、及成岩成矿物质的来源、矿液的迁移与沉淀富集规律进行研究分析,并对其成矿作用方式、矿床成因进行探讨。     

ASME规范之材料篇(2004版)内容简析

主要介绍了ASME规范的内容、版本的变化情况,以及其材料篇中的材料标准与ASTM标准的关系,并针对2004版ASME规范第II卷A篇(铁基材料)中的主要变动情况做了归纳总结和分析,给出了纳入2004版ASME规范第II卷A篇的锅炉和压力容器用的一些新材料情况,和增加的新标准的主要内容。     

低能X射线吸收法测量泡沫材料密度

文章介绍为适应惯性约束聚变(ICF)靶材料研究而发展的一种密度测量方法。通过测量X射线经靶材料吸收前后的强度变化,可较为精确地计算出待测样品的密度。用于泡沫材料密度测量的X射线源是特制的激发源。     

建筑材料中放射性核素限量标准的探讨

《建筑材料放射性核素限量》（GB6566—2001）结束了我国建材标准长期不统一的局面，规定了对建材中放射性实现强制检定的要求，但在装修材料分类、空心材料、废渣利用、测量方法等方面存在着一些不合理的规定。与以往的国家标准相比。对建材中的放射性控制明显放宽，甚至比原来的建材行业标准对石材的控制还要宽，影响了公众的辐射防护安全。对此进行了详细的分析和讨论。     

空气中LiMn2O4的热分解动力学

为了得到LiMn2O4在空气中的分解动力学，用TG、XRD和H—E积分方程研究其分解过程．1070-1210K的分解反应为LiMn2O4(Cubic)→LiMn2O4—5(Orthorhombic) δ／2O2，过程属于成核生长控制，活化能为204．16kJ／mol．1210-1473K的分解反应为3LiMn2O4—δ(Orthorhombic)→LiMnO2 Mn3O4 Li2Mn2O4 (1—3δ／2)O2，1210-1300K内的分解过程属于成核生长控制，活化能为185．61kJ／mol，在1300-1473K内的分解过程属扩散控制，活化能为208．74kJ／mol．由H—E积分方程得到的动力学参数InA与E、logC与m间存在明显的动力学补偿效序．     

《园林工程制图》课程教材的若干问题

阐述了园林工程专业的《园林工程制图》教材的课程体系与内容安排,提出了园林工程图的分类,图形表达方法的特点,以及对园林工程图绘图技能的教学特点。