浅谈高等院校多媒体教室及其教学设备的管理和维护

随着多媒体技术的迅速发展,多媒体教学是现如今教育教学改革的发展趋势。多媒体教室成为多媒体教学的基础设施和重要组成部分,已经广泛应用到高等院校的课堂教学中。本文通过分析多媒体教室使用中常见的问题,相应指出多媒体教室维护与管理的具体措施。     

多媒体教室的音响设计及声缺陷的调校

对多媒体教室的声学指标、音响设计以及器材配置要求进行了分析 ,并对多媒体教室常见的声缺陷问题提出了调校的建议和解决方法     

多媒体教室的音响设计及声缺陷的调校

对多媒体教室的声学指标、音响设计以及器材配置要求进行了分析，并对多媒体教室常见的声缺陷问题提出了调校的建议和解决方法。     

浅谈高校多媒体教室扩音设备的使用

随着现代教育改革的推进、各种扩音设备在现代高校多媒体教室中的普遍应用,扩音设备的使用和维护逐渐成为高校电教部门的重要任务。笔者根据多年从事高校多媒体教室维护的经验,结合几种较为常见的多媒体教室扩音设备,如FM调频无线麦克风、移频增音等,借此与读者共同探讨并寻找在实践中证明较为实用的教学扩音方案及其配置参数。     

多媒体教室的声学环境分析及设计

多媒体教室是学校现代化教学的重要场所之一,根据目前学校多媒体教室建设和改造的实际情况,分析了多媒体教室的声学环境和多媒体教室在建设和改造中出现的主要声学问题,提出了多媒体教室声学环境优化设计的方法和思路.     

多媒体教室的桌面虚拟化探索

如何有效管理多媒体教室已经成为各高校面临的一个难题.通过分析多媒体教室的计算机系统维护问题和桌面虚拟的技术特点,在合理利用已有的多媒体教室资源基础上,提出了多媒体教室的桌面虚拟化方案,为多媒体教室的管理带来便利.     

云终端在学校多媒体教学的应用

针对目前校园多媒体教室的现状,调研分析了现有多媒体教室存在的不足,并探讨基于云终端技术改造现有多媒体教室,足校园多媒体教室的易维护性和安全性需求。     

多媒体电教教室的设计与建设

多媒体教室是实现多媒体教学的主要平台,在学校中将逐步得到普及.介绍了多媒体教室的组成及功能特点,着重论述了多媒体教室的建设目标,多媒体设备的选择及建设多媒体教室时应注意的几个关键问题.     

多媒体教室与校园网的协同发展

高校对多媒体应用的日益重视、校园网的普及和不断发展,给多媒体教室建设、管理和使用带来了新的生机,多媒体教室与校园网的协同发展,使得多媒体教室的网络化集中管理成为可能,也为多媒体教室在使用和功能上增添了新的内涵.     

高校多媒体教室的规划及建设探讨

多媒体教室是运用现代教育技术手段进行教学活动的重要场所,是学校实现多媒体教学的平台.随着各高校多媒体教室数量的不断增加,随之暴露出因建设引起的使用和管理问题也越来越突出,多媒体教室建设的好坏,直接影响到今后多媒体教室的教学使用和维护管理.科学规划多媒体教室需从多媒体教室的建设原则、环境建设、设备配置和建设施工等方面进行探讨.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has