Multiple description coding has recently been proposed as a joint source and channel coding to solve the problem of robust image transmission over unreliable ne
水力过渡过程,尤其是甩负荷过渡过程的计算,是水电站和水力机组设计不可或缺的一项工作,也是保证水电站安全稳定运行的前提。为了确保水电站甩负荷过渡过程的安全,基于MATLAB,采用
摘 要:本文针对新形势下的图书馆所面临的问题及挑战,对中职图书馆如何树立“读者为中心”的服务创新理念,如何建立满足不同读者群体的服务创新模式等问题进行分析探讨,以保证服务创新工作的持续推进。 关键词:图书馆 网络环境 读者服务创新 中图分类号:G25文献标识码:A文章编号:1674-098X(2012)06(a)-0217-01 在当前网络信息空前膨胀的冲击下,中职图书馆要改变传统的被动
通常H桥开关电路的4个功率开关全部由全可控型器件构成,其中两个作为是低端开关,两个作为高端开关。低端开关的驱动比较简单,而高端开关的驱动则相对复杂。本文提出一种由全
Up to now, how to construct an efficient secure group signature scheme, which needs not to reset the system when some group members' signing keys are expose
A novel Bacterial Foraging Algorithm (BFA) based neural network is presented for image compression. To improve the quality of the decompressed images, the conce
In this paper,the integer N = pkq is called a <k,1>-integer,if p and q are odd primes with almost the same size and k is a positive integer. Such integers were
In this paper, the design of a planar ultra-broadband sum-and-difference network is pre-sented. This network employs a novel power divider and anti-phase balun
基于3个测次实测资料,对长江佛耳岩河段河床演变特点进行了分析,主要包括平面及纵、横断面的变化规律.结合三峡水库的调度及河段内小南海航电枢纽规划建设带来的河道水沙条件
糯扎渡水电站水头高,电站压力钢管管壁厚、单节管节重、制作与安装要求高,且压力钢管在工地现场卷制。为了保证压力钢管的制造安装质量,在分析钢管质量要求及制造、安装工艺的基