一种新型金属化空心微球电磁功能材料   总被引：3，自引：0，他引：3  

徐鸿飞  徐丽娜  顾宁  孙忠良 《东南大学学报》2003,19(1):8-11

介绍了一种新型电磁功能材料．该材料由表面无电子镀镍的空心微球组成．采用扫瞄电镜观测了镀镍前后的表面微观结构，制备成样品放入X波段波导框中，在微波网络分析仪上进行散射参数测量，计算了电磁特性参数．结果表明，该材料在表面镀镍后取得了较高的磁导率(19．0)和磁损耗正切(0．6)，而介电常数保持较低(1．8)．与非金属化微球材料相比，可作为超薄型多层微波吸收材料的基本材料．  相似文献   

高职通识教育微课程教材建设探索与感悟     

郭培俊 《浙江工贸职业技术学院学报》2016,(1):7-10

为理解通识教育概念,采用思辨法,产生新感悟：通识为隐性知识;通识似水;通为道,道常无为,而无不为。以开发《科学与生活》为例,得出高职通识教育微课程教材内容具有八大特性和编写风格的八大特征。  相似文献   

教科书:教育回归生活的物质载体     

张三花 《赣南师范学院学报》2006,27(1):23-26

审视以往的教科书,脱离生活是其现实的图景。马克思主义哲学、当代心理学、教育学和社会学等理论都为教科书回归生活的存在和发展提供了广阔的理论基础,教科书生活化具有现实性、合理性与必然性。教科书作为教育回归生活物质载体,它的价值也只有在真正实现“向生活的回归”中才能真正得到体现。  相似文献   

高职高专英语教材对比分析     

黄成夫 《教学研究(河北)》2007,30(3):249-251,258

本文通过对比分析几种高职高专英语教材编写理念和原则、教材内容编排异同点,指出有些教材编写还存在一定的问题,也为学校、教师和学生提供一些选用和修改教材参考性意见.  相似文献   

高校健美操教材的价值取向与教法思考   总被引：2，自引：0，他引：2  

袁玫 《重庆第二师范学院学报》2005,18(6):60-62

高校健美操教材的价值取向应突出健康美、实用性、可持续性、个体需求和体育文化等价值,只有加强科学的、实效的教学方法研究,才能帮助学生牢固树立终身体育观念,进一步提高自我锻炼能力,以促进我国全民健身运动更好的普及和发展.  相似文献   

高温磁制冷工质材料的研究进展     

彭振生 《淮南师范学院学报》2004,6(3):8-13

简要叙述了磁制冷的基本原理和历史发展。着重阐述了稀土一过渡族金属问化合物Gd—si—Ge系合金及钙钛矿型锰氧化物的磁热效应及其巨磁热效应机理，对高温磁制冷工质材料的研究现状及磁制冷技术的发展前景进行了分析。  相似文献   

影响回转烘干机技术性能的因素及技术改造     

赵尊群  何为平  刘建寿 《洛阳工业高等专科学校学报》2007,17(5):10-12

回转烘干机广泛应用于建材工业、化学工业及矿物烘干,分析了影响回转烘干机技术性能的两类因素,一类为由转筒烘干机本身引起的因素,另一类为烘干工艺方面的因素.同时提出技术改造措施.  相似文献   

马克思主义是实践唯物主义     

张力锋  王延光 《南京晓庄学院学报》2001,17(3):69-72

葛兰西过分夸大社会实践在马克思主义哲学体系中的地位,将其不适当地提升至本体论层次,从而形成所谓实践哲学.以马克思主义唯物一元论为背景理论框架,以经典作家的论述为依据,深入地批判葛兰西的错误认识,澄清实践、物质等基本范畴的辩证关系,对于继承和发展马克思主义哲学具有重要的理论和实践意义.  相似文献   

Seeing,hearing, reading,writing, speaking and things: on silences,senses and emotions during the “zero hour” in Germany     

Karin Priem 《Paedagogica Historica: International Journal of the History of Education》2016,52(3):286-299

This article focuses on senses, emotions and cultural practices such as writing, reading and speaking in West Germany after 1945. The period immediately following the end of the Second World War – the so-called Stunde Null, or “zero hour” – has generally been seen as a time of new beginnings, also with regard to cleansing the German language and breaking the silences of the past. This historical examination of sensory-emotional and material contexts and related cultural practices takes as its source Hanns-Josef Ortheil’s autobiographical novel Die Erfindung des Lebens (The Invention of Life), published in 2009. Ortheil’s novel is about a child’s enormous struggle to learn how to feel, see, read, write and speak. This so-called “ego document”, told by a first-person narrator, focuses on the links between things, objects, senses, emotions, and the acquisition of cultural skills and techniques while at the same time providing subtle commentary on post-war West German society.  相似文献   

Whitehead and a new look at teaching elementary science     

Robert S. Brumbaugh 《Interchange》1992,23(3):245-254

If Whitehead is right, science teachers who try to increase student interest by making the science they teach more pure and by covering more material are going about their work in just the wrong way. Science, for purposes of precision in measurement, translates the dynamic world of feeling and force, of causal efficacy (for example, the San Francisco earthquake), into a static representation spatialized and given presentational immediacy (for example, the Richter scale). But notice that the Richter scale isn't very interesting (even as abstract art) apart from its connection, via symbolic reference, to the earthquake. Such reference is essential to give both a sense of reality and a feeling of interes to the subject, but it makes the science less pure, and it takes more time to cover the material. An example of teaching pure and impure formal logic is given as a case study.  相似文献