Te对Bi0.85Sb0.15低温热电性能的影响

采用机械合金化法在553K、6Gp下压制30分钟获得Bi_(0.85)Sb_(0.15) x%Te(其中,x=0.1、0.2、0.5、1和2)的纳米晶热电材料,并对Bi_(0.85)Sb_(0.15) x%Te材料的热电性能进行了研究。通过对样品的X-ray衍射实验分析,证实已形成了单相合金。在80-300K温区测量了样品的Seebeck系数、热导率和电导率,并计算出材料的优质参数。结果表明:Bi_(0.85)Sb_(0.15) x%Te材料在80-300K温区表现出金属特征。Bi_(0.85)Sb_(0.15) 0.1%Te样品的电导率要比Bi_(0.85)Sb_(0.15)样品电导率高2-3倍,而Seebeck系数绝对值比Bi_(0.85)Sb_(1.15)样品减少了近80%。表明掺入Te可以提高Bi_(0.85)Sb_(0.15)纳米晶粉末材料的电导率。     

高职公关活动《召开新闻发布会》信息化教学设计与应用

针对教学目标和学情分析,合理利用“蓝墨云班课”平台、美拍等多种信息化教学手段,采用翻转课堂、任务驱动和情境演练等教学方式,设计了《召开新闻发布会》的信息化教学流程,贯穿课前预习、课堂教学和课后巩固拓展,开展预习检验与知识序化、课堂操作与知识内化的课堂教学环节,并进行实际应用,效果良好。     

‘With the Irish in France’

In January 1916 a party of journalists from seven Irish newspapers visited Irish regiments serving on the western front. Such a privilege came at a price. Organised by the Department of Recruiting for Ireland, it was made clear to the journalists that this embedded tour had an agenda: they were ‘to set down what they saw there for the benefit of recruiting in Ireland’. This article examines the extent to which the three national titles included on the tour accepted this role of communicating and legitimising recruitment policy. It sheds light on the involvement of two national newspaper editors in shaping recruitment policy in Ireland, illustrates how each of the three national titles reported the tour, and examines the effects such reportage had on recruiting in Ireland.     

东晋皇室婚姻初探

东晋皇室婚姻是东晋士族婚姻的重要组成部分。通过对东晋皇室婚选标准，皇室婚姻的特点及皇室婚姻与政治关系的进行探析，试图说明，在研究东晋士族婚姻和门阀政治时，皇室婚不可忽视。     

企业内部会计控制的现状与设想

近年来,财政部先后发布了许多内部控制方面的重要文件,这对规范企业的内部会计控制起到了一定的积极作用,但是从实际执行情况来看,效果并不明显,企业的内部控制任重而道远,仍需加强。本文就企业现行内部控制中存在的问题作以揭示和分析,提出了解决问题的途径和方法。     

教育理论的人学透视

在人性问题上，孟子提出性善论，荀子提出性恶论，他们各自依其对人性的理解，演绎出两种截然迥异的教育理论-“内发说”与“外铄说”。在人与外界环境的关系上，行为主义主张，人只是环境和刺激的被动承受者，人的行为只是环境的特殊产物，具有很强的被规定性。认知主义认为，人是在与环境的“同化”与“顺应”的过程中，构建起自身的认知结构，促使人认知发展的。人本主义依其对人的独特理解，更加重视人的意识所具有的主动性和选择性。     

伊拉斯漠与早期印刷业

西欧早期印刷业与人主义运动之间存在一种互动关系。在新学术运动和宗教虔诚复苏影响之下，许多印刷商除了谋取商业利润之外兼具复兴古典化，传布基督福音的学情怀；另一方面，人主义运动的传播，学术研究方式的变革，具有自觉意识的人主义学术集体的形成均渗透着印刷业的影响。     

Modelling and Simulation of System Dynamics of Hybrid-Driven Precision Press

Different from conventional mechanical systems with single degree of freedom (DOF),the main idea of the system of hybrid-driven precision press is to combine the motion of a constant speed motor with a servomotor via a two-DOF mechanism to provide flexible output. In order to make the feasibility clear, this paper studies theoretically the dynamic characteristics of this hybriddriven mechanical system. Firstly,the dynamics model of the whole electromechanical system is set up by combining dynamic equations of DC motors with those of two-DOF nine-bar mechanism deduced by the Lagrange‘s formula. Secondly through the numerical solution with the fourth Runge-Kutta, computer simulation about the dynamics is done, which shows that the designed and optimized hybrid-driven precision press is feasible in theory. These provide theoretical basis for later experimental research.     

胶印机离合压机构示教装置的电气控制设计

研制了胶印机示教装置，简单阐述了该示教装置开发的主要特点及基本要求，并且对该示教装置离合压系统电气控制设计作了详细的分析介绍。胶印机示教装置在低速运行时，演示现象明显。     

关于"利用"和"知悉"--论内幕交易的认定

对认定内幕交易究竟是应以“利用”内幕信息还是以“知悉”内幕信息为标准这个问题，可以借鉴在认定内幕交易的其他经验，采“知悉”为标准，适用举证责任倒置，如此才能有效而方便地认定内幕交易。