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电大
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  tv university
     This article introduces the basic composing of the management of educational information system in Tianjin Radio&TV University , analyses both B/W/RDBMS and C/S systems , and suggests the strategies of safe maintenance of the campus network and the management of the educational information system.
     本文介绍了天津电大教育管理信息系统的基本构成,对B/W/RDBMS和C/S两种体系结构进行了分析并提出了校园网络与教育管理信息系统的安全性维护策略。
短句来源
     Modern Educational Technology and TV University Education in the 21th Century
     现代教育技术与21世纪的电大教育
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     Practice and Research on the Quality Guarantee of Teaching Process in Anhui TV University
     安徽电大教学过程质量保证的实践与研究
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     Based on the analytic method of the strategic choice SWOT (Strength, Weakness, Opportunity, Threat), the strategic choice of the county level TV University can be divided into the growth strategy, the stability -growth strategy, the contraction strategy and the multiplex strategy.
     依据战略选择SWOT(Strength优势、Weakness劣势、Opportunity机会、Threat威胁)分析方法,县级电大的战略选择可分为成长型战略、先稳定型而后转向成长型战略、紧缩型战略及多元化战略。
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     The Exploration of EDA Techniques Application to Teaching in TV University
     探析EDA技术在电大教学中的应用
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  tv universities
     Construction and Application of ADSL VPN Network in Mountain Area Radio and TV Universities
     山区电大ADSL VPN虚拟专用网络的构建及应用
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     Research and Practice on the Campus Culture Construction of Radio&TV Universities
     电大校园文化建设的探索与实践
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     Analysis on the Factors hindering the Development of Distance Education in R&TV Universities
     电大远程教育中的阻碍因素分析
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     Reflection and Designing of the Teaching Mode of the Local Radio & TV Universities in Distance Open Education
     远程开放教育中地(市)电大教学模式的思考与设计
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     Reflections on the Implementation of Strategic Quality Management of Distance Education in TV Universities
     关于电大远程教育实施战略质量管理的思考
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  “电大”译为未确定词的双语例句
     Promote the Development of Continuing Education in Radio & Television Universities for the 21st Century
     面向廿一世纪 大力推动电大继续教育的发展
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     Adhere to the Direction of Teaching Reform and Explore a New Way of Teaching
     坚持改革方向 探索教学新路——南京电大“注册视听生”试点工作的体会
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     The Generalized Discrete Convolution Method for Electromagnetic Problems of Electrically Large Structures
     电大尺寸电磁场问题的广义离散卷积法
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     Learning Society and RTVU's Open and Distance Learning
     学习化社会与电大远程开放学习
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     The Complementary Mode of the Teaching Resources in RTVU's Medical Training
     电大医科教学中资源互补模式
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  tv university
Preliminary study of improving China TV University instructional materials
      


Anew electro Static Separating device and method for the mixture of peeled off Sunflo Wer Seed is introduuced and the fundamental Prin- ciples of the installation are also stated in this paper. The papes analyzes th- e moving appearance of precharged shells and meats of sunglower seed in a high voltage electric field with tge help of analytic dillerentia- equation. In the paper the moving trace of the precharged particles. viz. the 7he- lls and meats of sunflower free-falling in the high voltage electrostati-...

Anew electro Static Separating device and method for the mixture of peeled off Sunflo Wer Seed is introduuced and the fundamental Prin- ciples of the installation are also stated in this paper. The papes analyzes th- e moving appearance of precharged shells and meats of sunglower seed in a high voltage electric field with tge help of analytic dillerentia- equation. In the paper the moving trace of the precharged particles. viz. the 7he- lls and meats of sunflower free-falling in the high voltage electrostati- c field of different parameters have been drawn by computer, and thus the practicability of the electro static separating method has been ver- ified.

本文提出一种新的静电分选方法及原理。认为葵花籽的壳、仁混合物可采用电晕荷电、自由落体分选的方法进行分离。文中用解析法分析了荷电大籽子按自由落体方式通过高压匀强静电场时的运动状态,推导出其运动轨迹方程、并在计算机上绘出不同电场参数时葵壳与葵仁的运动轨迹图象,从理论上证明了这种分选方法的可行性。

The on-surface radiation condition (OSRC) method which is based upon radiation boundary condition applied directly on the surface of a scatterer is a high-frequency approximate approach for electomagnetic scattering. In this paper the point matching method is used to solve OSRC equation for the scattering magnetic field on the surface of a perfectly conducting cylinder for TE polarized incident wave. The cases of circular and elliptic cylinders are used to show that OSRC method is suitable for scatterers with...

The on-surface radiation condition (OSRC) method which is based upon radiation boundary condition applied directly on the surface of a scatterer is a high-frequency approximate approach for electomagnetic scattering. In this paper the point matching method is used to solve OSRC equation for the scattering magnetic field on the surface of a perfectly conducting cylinder for TE polarized incident wave. The cases of circular and elliptic cylinders are used to show that OSRC method is suitable for scatterers with electrical-large dimension and large radii of curvature of the surface and yields good results for the surface current and the radar cross section. This method is simple and convenient for engineering applications.

表面辐射条件(OSRC)法是一种将辐射边界条件直接应用于散射体表面以解决电磁散射问题的高频近似方法。本文使用点匹配法求解TE极化入射波的理想导电柱体的表面散射磁场所满足的OSRC方程。以圆柱及椭圆柱为例说明了OSRC方法适用于电大尺寸的及表面曲率半径较大的散射体,可提供良好的表面感应电流及雷达散射截面的结果。这种简便方法易于在工程上应用。

On the basis of the discrete convolution method (DOM), a modified discrete convolution method (MDOM) is proposed by zeroizing the Frobenius norm of the iterative matrix. The storage space and the multiplicative operations of MDOM are similar to those of DOM, but the convergence of the former is more stable than that of the latter. The MDOM is suitable for the electromagnetic scattering or radiation of an electrically-large body, especially for the scattering of the finite periodic structure.

该文在将离散卷积法(DCM)公式化的基础上,通过修改迭代矩阵,使其Frobenius范数趋于零,得到一种新的迭代矩阵,形成了修正离散卷积法.计算结果表明,该方法在存贮量和迭代计算量方面与DCM相仿,但收敛范围更广.适用于电磁辐射与散射问题,尤其适用于电大尺寸的有限周期结构电磁散射.

 
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