厂商中标信息

近日,大洋中标黑龙江电视台全台网项目。该项目的建设将分为两期进行,在实现台内播出、媒资、制作等业务系统之间高效互联的同时,完成电视制播业务系统与台内办公网、新建计费系统的互联互通,打造数字化、网络化、智能化、信息化的大型多媒体综合信息生产管理系统。     

探讨适应三网融合的媒资管理系统简

本文介绍广电行业媒资系统要实现面向多屏融合的新媒体应用,必须在节目生产、业务流程管理、资源管理形式、节目发布形态等方面做出改变。通过构建面向多屏融合的媒资管理系统,用统一的系统支持多种新媒体业务终端,实现媒资内容的共享。     

媒资系统架构设计探讨

本文结合上海文广新闻传媒集团（SMG）数字化网络平台中的媒资系统的设计和建设实践,从媒资业务入手。分析了媒资系统架构设计方法,对媒资系统的软、硬件的架构设计也进行了深入的分析和探讨。     

智能媒资管理系统在广播电视工程中的应用

随着信息技术的快速发展,智能媒资管理系统在广播电视工程中的应用逐渐引起人们的关注。通过对相关技术原理的详细描述和分析,深入探讨智能媒资管理系统的数据存储与管理、数据采集与传输等方面的技术基础和智能媒资管理系统在广播电视工程中的具体应用,为广播电视行业的数字化转型和创新提供有力的支持。     

浙江广电集团视频数据库系统建设

本文通过浙江广播电视集团媒资管理系统项目的实施,结合目前数字化、网络化媒资管理系统的技术和模式,介绍了浙江广播电视集团媒体资产内容管理系统的总体目标和整体架构,对系统设计标准,功能结构进行了分析,提出系统建设就面对一线实际应用的观念.     

基于云计算架构下的全媒体资产管理系统

探讨了云计算架构下,全媒体资产管理系统的设计要点、系统架构、云计算对媒资业务的影响.云媒资系统是结合IT行业蓬勃发展的云计算技术而提出的新的全媒体系统理念,基于以数字媒体资源为核心的运营模式和云计算架构,能够转变广电用户的业务实现手段,提升业务核心管理水平     

媒资管理系统建设浅谈

本文结合黔东南电视台的实际情况。详细讨论了如何建设一套专业、先进、实用的媒资管理系统。并且详尽地讨论了黔东南电视台媒资管理系统的系统结构和特点。为广电行业同行单位建设适合自身特点的媒资管理系统提供了一个良好的案例和借鉴。     

分析展望博物馆智能媒资系统解决方案——以中国国家博物馆为例

数字化和网络化不断成熟的今天,各广电单位的媒体数据都在持续增长,虽然普遍使用传统媒体资产管理系统能够提供数据上下载、存储等功能,但一方面,随着数据技术指标的更新和媒体文件质量的更高要求,传统媒资系统的存储及运算力已严重不足;另一方面,移动互联网端与融媒体业务的发展,对媒资系统的高效率、智能化等提出了新的要求。传统媒资系统迫切需要转型与升级。以中国国家博物馆媒资系统为例,分析并展望未来博物馆的智能媒资系统解决方案。     

基于全台网架构的“大媒资”系统设计及实践（上）

本文介绍了江苏广电总台以总局《电视台数字化网络化建设白皮书》为指导,创造性地提出“大媒资”设计理念,在全台网架构下进行媒资系统建设,并创新媒资服务理念,努力为全台更大范围的节目生产、 版权经营、新媒体业务等提供更好的支撑的经验,对媒资管理系统的规划、设计、建设过程进行了介绍,在设计思路、技术方案、软件功能、系统安全、质量控制等方面进行了分析,对系统建设经验进行了总结。     

构建面向多屏融合的媒资管理系统

分析了煤资管理系统的需求,在此基础之上提出了媒资管理系统的总体设计方案,包括系统分层模型、系统结构、接口设计等方面.该系统在珠江数码集团的数字电视业务、IPTV业务、移动数字电视业务以及广州电视台视频网站等都有应用,运行情况良好.     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks