电光聚合物调制器电晕极化和直接接触极化方法的实验比较

对调制器用电光聚合物材料的2种极化工艺--直接接触极化方法和电晕极化方法进行实验比较和分析,制备了用于极化实验的3层结构的电光聚合物调制器,给出了这2种极化方法的实验装置和极化工艺.实验发现,极化前的预处理工艺控制非常关键,否则会降低极化效率或损伤膜表面.结果表明:直接接触极化方式对膜表面的损伤较小,极化电压低,而电晕极化方式可以得到高的电光系数.直接接触极化方式极化的面积能够达到基板的尺寸.     

Temperature in High Temperature SHPB Experiments

As an experimental technique,it's desired that the temperature in specimen is uniform in high temperature split Hopkinson pressure bar (SHPB) experiments.However,the temperature in specimen decreases and the temperature of bars increases when specimen starts to contact with bars,which induces the nonuniform temperature distribution in specimen,and may result in inaccuracy of experimental results.In this paper,the temperature distributions of specimen and bars in high temperature SHPB experiments were investigated while the specimen was heated alone.Firstly,the temperature history of specimen was measured at different initial temperatures by experiments,then simulation was carried out.Simulation results were consistent with experimental results by adjusting the thermal contact coefficient between specimen and bars.By this way,the thermal contact coefficient and simulation results were validated,and the proper cold contact times of specimen and bars in high temperature SHPB experiments were discussed.Finally,the results were compared with those in references.     

保险合同中违反告知义务的构成要件分析

保险合同中违反如实告知义务的构成要件是：违反如实告知义务的主体是投保人或被保险人；违反告知义务的范围仅限于保险人询问的范围；过失违反告知义务的事实应当是重要事实；投保人、被保险人违反告知义务是出于主观上的故意或过失。     

Simulation of Fragment Impact on Multi-Layer Targets Using Contact Method

Cased explosives generate highly energetic fragments as their casing breaks up. Due to the complexity of casing fragment related behavior such as embedment, perforation and ricochet, it may be insufficient to use equivalent triangular pressure loading in fragment impact simulations. This simplified method may over- or under-predict the target response. Recently, a procedure using contact techniques has been proposed to overcome such difficulties. It has been shown that the new method has the inherent capability in modeling the multi-piece and multi-hit fragment impact problems in a more realistic way. To investigate the applicability of the proposed method to simulations involving multi-layer penetration, the selected problems of fragment impact on multi-layer targets are described in this paper. It is demonstrated that this method is capable of predicting the complicated multi-layer structural response caused by fragment impact and penetration. Modeling procedures and some technical issues are also discussed.     

中国英语的社会语言学解读

中国英语以规范英语为基础,表达了中国社会文化诸领域中的特有事物,对中西文化交流有积极促进作用。摒弃在语言内部规律的框架里研究语言发展的模式,本文从社会语言学的角度诠释中国英语这一特殊的语言现象,试图揭示语言接触和社会心态间的密切关系,以期更全面地了解社会与语言共变的规律。     

啤酒工业废水处理工艺进展及比较浅析

分析了啤酒工业废水的来源和性质特点,从厌氧、好氧生物处理两方面介绍了啤酒废水处理的主要技术及应用效果,并浅析了5种较成熟的啤酒废水处理工艺流程 最后,对未来的治理方向提出了几点建议     

城市对外经济联系量与地缘经济关系的匹配分析——以南京市为例

在城市或区域规划研究中,常分别通过城市对外经济联系量、欧氏距离法测算城市或区域之间的联系强度、竞争与合作关系。本文尝试开展两者的协同研究,以南京市为例,通过测算其与不同城市之间的对外经济联系量、地缘经济关系及其匹配关系,为南京市城市或区域规划提供决策支撑,为今后开展类似研究提供研究思路和方法框架。     

论地理教学中的学科横向联系

地理学科综合性、边缘性、现实性的特点, 使地理知识与其他学科有广泛的联系, 使地理教学中的学科横向联系成为必然。以地理教学为平台, 加强学科知识间的渗透融通, 对学生发展综合的思维能力、形成有机的知识体系、适应新的高考形势具有积极的作用。     

黄安伦《序曲与舞曲I》“指-腕-肩-腕-指”的演奏处理

钢琴曲《序曲与舞曲》是黄安伦中期创作的代表性作品。笔者通过研究演奏中对“指-腕-肩-腕-指”的转换,探索对该作品音乐结构的宏观控制,以及更好地把握黄安伦钢琴作品的风格和特点。     

对微信圈信息依赖的教育反思

既是社会现象又是教育现象的微信圈信息依赖,作为资讯民主大众化、科技革命大众化、人际自由大众化和个性情感大众化的反映,实际上是课堂教学大众化在社会时空里的镜像反射。微信圈在不经意间提供了课堂教学能深深嵌入广阔社会时空的条件,微信圈信息依赖则顺势铺设了向课堂教学输送课程资源的网络"管道"。微信圈信息依赖应在批判性思维的基础上实现社会化历程的个人体悟,在文明内化的轨道上实现技术应用的健康化发展,在秩序的心向上实现个体行为的社会性进步,在理性的空间里实现生命的人文化生长。构筑人们在更高追求和更多选择面前的教育平台,使微信圈及其以信息依赖为载体的文明发展成果去推动教育与社会交融共进的互动关系,正是教育本质意义的重要体现。