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有源安装板是有源相控阵雷达的主承力结构,其性能和质量的优劣直接关系到整个雷达质量的好坏．为了提高雷达有源安装板的环境适应性,在设计过程中必须进行冲击试验．该试验重点针对某雷达有源安装板进行了50g半正弦冲击试验,得出了其z、Y、z向冲击试验前后特征级对比结果图,为有源安装板结构的设计制造和修正提供了参考． 相似文献
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陈剑峰 《南通职业大学学报》2014,(4):89-92
从材料性能、施工工艺与经济性等方面,对新型建筑材料钢骨架轻型板与轻钢结构、传统钢筋混凝土结构材料作了对比分析,阐述了钢骨架轻型板的产品优势。在此基础上,结合某工程应用实例,从安装工艺、嵌缝施工、质量保证措施等方面,探讨了钢骨架轻型板施工的关键质量控制点。实践证明,钢骨架轻型板能满足现代建筑对轻质、节能、环保的要求,同时能缩短施工工期,节约工程造价,值得推广。 相似文献
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扶梯已经成为城市重要交通工具之一,其安全性受到普遍关注。除了急停、防链条断裂,防梯级逆转,防梳齿板挤压等主要保护开关应该特别重视外,围裙板保护开关也应该引起更多关注。不应该由于其开关很小,维护不是很方便,而忽视对它的安装和维护,从而成为扶梯运行中的安全隐患。 相似文献
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刘文广 《石家庄铁路职业技术学院学报》2013,12(2):1-7
中国铁路无砟轨道具有轨道稳定性好、平顺性好、刚度均匀性好、结构耐久性强、维修工作量显著减少、旅客列车的安全性和舒适性显著提高等优点。CRTSⅡ型无砟轨道板作为无砟轨道系统的重要组成部分,具有结构稳定,利于工厂化生产,利于提高施工效率等特点。主要阐述轨道板制作过程的质量控制,分别从原材料、钢筋制作安装、模具安装、混凝土作业、轨道板存放、轨道板打磨六个方面具体说明。同时对常见质量问题进行原因分析,提出预防及解决办法。通过有助于高速铁路建设各方工程管理技术人员对CRTSⅡ型无砟轨道板制作进行有效控制,确保高速铁路工程建设质量。 相似文献
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以工程实例的形式介绍现浇空心板的平面布置及结构形式。结合空心模壳的抗浮验算、内模安装及抗浮措施,详细地论述了抗偏移的现浇空心板混凝土浇筑施工方案,并对现浇空心模壳局部节点处理提出了一些可行的施工措施。 相似文献
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介绍采用移动平台法进行斜煤仓维修及安装高分子板的施工工艺，阐述了该施工法的优点及应注意的问题，对斜煤仓类似施工有一定的指导意义，且选价低廉，有良好的经济效益。 相似文献
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正《八板》、《六板》和《虞舜薰风操》这三首不同曲名的乐曲,都是《八板》的异名同曲,所不同的是《八板》是68板、《六板》是60板、《虞舜薰风操》是48板。《八板》也称《老八板》(它与加花乐曲并用时才称它为《老八板》),乐曲的曲名是根据每一乐句都是八板(八拍)而得名,一乐句俗称"一大板"。《八板》全曲有八个大板,在第五大板后加四板。民间传说:(1)象征四方即:东、南、两、北:(2)象征四季即:春、夏、秋、冬。全曲 相似文献
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在多层斜板分离设备的斜板下方安装一系列与斜板垂直的翼板,构成了带翼斜板设备。把该设备用于石油污水的脱油自理研究发现,其具有较高的脱油效率和脱油深度。在进口含油浓度介于２００￣６００ｍｇ／Ｌ之间,停留时间２７．６分,平均脱油效率可达９３．８％,出口平均含油浓度为２１．８ｍｇ／Ｌ,粒径大于４０μｍ的油滴基本均可脱除。文中还对进口含油浓度在３００￣４００ｍｇ／Ｌ之间的出口含油浓度与表面负荷率的关系进行了 相似文献
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通过对挖斗支耳板结构和定位要求分析,设计了支耳板焊接专用工装,本套工装安装和拆卸焊接件简便,保证了焊接精度、提高了焊接质量和效率、方便了焊接作业. 相似文献
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孔现红 《阜阳师范学院学报(社会科学版)》2010,(3):65-68
魏晋时期,隐逸之风盛行于一时。隐逸精神及其隐逸方式都发生了较大发展与转变：隐逸精神由东汉末年的避祸之隐转向了正始时的现实抗争之隐、西晋时的世俗生活点缀之隐及东晋时的心灵精神脱俗之隐。隐逸方式也由纯粹的山林之隐转向了融通仕隐的“朝隐”,之后走向了山水自然之隐。魏晋隐逸精神及其方式,都对后世影响甚巨。 相似文献
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Olga Denac 《Early Childhood Education Journal》2008,35(5):439-444
In the interaction between the child and the adult, interest can be a significant motivational initiator of activities. Systematic
monitoring and development of the interest in music activities enables the teachers to influence the preschool children in
forming a positive attitude towards the art of music. The research involving preschool teachers, children at the age of five
to six and their parents, was conducted in order to determine the interest of preschool teachers and children in music activities.
We found that the teachers showed greatest interest in singing songs, playing instruments and listening to music. The children’s
favourite activities in kindergarten were movement to music (dancing), singing songs and playing on instruments, namely activities
where they could take active part in the educational process. The parents reported that at home the children preferred most
to listen to music, to sing songs and move to the sounds of music, and less to play on instruments and to be creative in music.
The development of the children’s interest in music depends on the teachers’ expression of interest in music activities, on
the choice of music activities and music contents and on the experience in the music environment of the family. 相似文献
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《Educational Philosophy and Theory》2013,45(7):737-754
Postmodern theory is used to consider literacy instruction with and without an electronic whiteboard to investigate what it means to move beyond using technology to replicate older models of classroom structure that may be historically situated but that also limit or at least, do not support engagement in ways that may be possible through use of new technologies. Using postmodern theory in this regard is a way in which to consider again the thoughts and practices that tend to construct identities and ideologies in ways that work against true engagement in literacy tasks, lead to subjection and demonstration of acquiescence in place of engagement that leads to participation and critical engagement. Critical engagement as opposed to gaining and maintaining student attention to task are considered in this paper. Thinking about use of the electronic whiteboard from a postmodern perspective cautions us about careful use of this technology to avoid sending messages to students about them and their role in literacy development, the classroom, and in society. 相似文献
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我国高等教育改革与发展的新形势要求地方高师院校重视和加快学科建设。地方高师院校学科建设的核心是搞好学科布局和凝炼学科方向;关键是抓好学科队伍建设;必须抓好学科基地建设;必须遵循有所为、有所不为的原则,贯彻分类指导、分层次建设、滚动式发展的方针;必须健全和完善学科建设的组织机构,探索并建立有效的学科建设运行机制。 相似文献
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梁韶华 《新乡师范高等专科学校学报》2000,14(3):78-80
本文对如何培养和提高师专中文专业生写作思维能力的问题进行了探讨,主张在写作教学中教师必须把握好四个环节：一是明确思维特点,讲授思维方法;二是抓住写作理论课堂,引导学生走上科学思维轨道;三是加大文章赏析力度,锻炼科学思维能力;四是抓好习作实践,提高学生写作思维能力。 相似文献
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文章结合北京大学的教师聘任和职务晋升规定,介绍医学部在优化师资队伍,推进教师聘任和职务晋升制度改革方面的措施及取得的成效和存在的不足。同时提出了今后教师聘任制改革的设想,旨在"抛砖引玉",供各位同行研究和探讨。 相似文献
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我校图书馆期刊利用的调查及建议 总被引：2，自引：0，他引：2
郑海生 《内蒙古师范大学学报(哲学社会科学版)》2000,29(6):121-124
高等学校课程体系的改革,要求给学生更多的自学时间和思考的空间,以提高学生的自学能力,适应未来社会发展的需要。如何引导在校师生高效率、快节奏地获取最新信息,做好住处服务工作,是高校图书、期刊管理中急需探讨和研究的问题。笔者通过8个多月对我校过刊利用情况的实际调查,针对当前期刊订阅中存在的问题,提出了期刊订阅和有效利用的建议。 相似文献
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Huan-Sheng Peng 《Paedagogica Historica: International Journal of the History of Education》2017,53(4):441-459
The eight-year-long period from Japan’s initiation of the Second Sino-Japanese War in 1937 to its unconditional surrender in 1945 forced Japan to invest its national economy and industrial and scientific technologies in the war. In addition, in the name of the Greater East Asia Co-Prosperity Sphere, Japan initiated its assimilation and Kominka (Japanisation) policies (皇民化政策) in the colonies Korea and Taiwan. Japan used education as a tool to expand its influence over members of society, and attempted the frequent use of Japanese and Kominka (皇民化) in daily life to penetrate the awareness of people in the colonies. Japan also started to enforce various assimilation policies. A comparison of the implementation of Kominka policies (皇民化政策) in Taiwan and Korea shows that, in terms of school admission rates and frequency of use of Japanese, the proportion of school admission rates for frequent speakers of Japanese to primary education in Taiwan are significantly higher than those in Korea. Moreover, in terms of primary education, national schools were implemented in both Taiwan and Korea according to the “National School Order” promulgated in 1941. Japan made use of the term “education equality” to win people over. In fact, it aimed to strengthen the concept of Kominka (皇民化), the education of militarism, and to force the Taiwanese and Koreans to become “imperial citizens” loyal to the Emperor. Japan’s ultimate objective was to create an environment that met military needs for civilian and military resources. 相似文献
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The paper describes a case study of the development and implementation of a policy to monitor teachers’ classroom practice
in a secondary comprehensive school in Wales, UK. The change process is interpreted from an affective standpoint to explain
how the experience of feelings and emotions shapes organisational practice. In particular, the interpretation illustrates
how affective experience may influence the distinction between espoused and in use theories, which may in turn have an effect
on individual and organisational resistance to change and the success of the implementation. Differences between espoused
and in use theories may increase both organisational anxiety and resistance in a self-sustaining cycle. We argue that when
the anxieties and emotions of organising in schools are allowed to surface in the change process and are reflected upon, the
espoused and in use theories are more likely to correspond and organisational anxiety and resistance to change to decrease. 相似文献