Description: We propose and analyze several timestamping of an MPEG-2 Transport Stream transmitted strategies for performing over a packet-switched network using the PCR-unaware encapsulation scheme, and analyze their effect on the quality of the recovered clock at the MPEG-2 Systems decoder. Platform: |
Size: 364422 |
Author:lucy |
Hits:
Description: 虚拟桌面(DeskWin)
在Linux下,X桌面系统的虚拟桌面系统把用户的工作区增加了很多,而Windows下却没有这样的功能,本软件就是在Windows下实现这种功能的软件。你可能会在有限的窗口中打开几十个窗口,可是Window的任务栏面积有限,在有几十个窗口时,你已经搞不清这些窗口到底谁是谁了。如果把这些窗口分成几组,岂不是很方便?有了虚拟桌面(DeskWin)软件,就能够帮你解决这个问题!在1号桌面打开工作要用的窗口(如AutoCAD、Word),切换到2号桌面打开realplay听歌,切换到3号桌面上网聊QQ,4号桌面可以开个小游戏.一下子你就相当于有四个显示器了.
-virtual desktop (DeskWin) in Linux, X desktop systems virtual desktop system to the user's work area increased, while Windows has no such function, the software is in Windows to achieve this function software. You may be in a limited window open dozens of windows, but the Windows task bar area is limited, in dozens of window, which you have come to the window in the end who is who. If this window is divided into several groups, it would be convenient? With virtual desktop (DeskWin) software, we can help you solve this problem! In the 1st working with the desktop to open the window (such as AutoCAD, Word) switch to open on the 2nd desktop realplay music, switched to the 3rd desktop Internet chat QQ, on the 4th desktop could open a small game. suddenly you have the equivalent of four mon Platform: |
Size: 88497 |
Author:李建 |
Hits:
Description: 目前,包括我国在内的许多国家都采用了H.323作为IP电话网关之间的协议,整个IP电话系统只是把IP网络作为传输媒介,在用户的接入上还是采用电路交换系统,把IP电话网关作为电路交换网和IP网络的接口。-Currently, including China, many countries had adopted H.323 IP telephony gateway as the agreement between the the entire IP phone system is to bring the IP network as a transmission medium, the user's access or use on circuit-switched systems, IP Telephony as a circuit-switched network and IP network interface. Platform: |
Size: 590683 |
Author:Jee |
Hits:
Description: 回顾一个多世纪以来电力工业和电力系统的发展,深感由于经济发展和技术进步带来的巨大变化。上世纪的80~90年代,是电力系统的初创时期。据记载,1882年在美国纽约建成了世界第一个完整的电力系统。这是一个由发电机、电缆和负载组成的直流电力系统。然而由于直流输电系统的局限性,人们转而研究交流输电技术,并在上一个世纪之交,确立了交流输电系统进一步发展和应用的基本取向,从而带来了本世纪交流高电压输电和电力系统的大发展。从本世纪初到60年代末,最高交流输电电压从12.44千伏和60千伏提高到735千伏和765千伏。在此期间,电力系统规模也迅速扩大,电网互联程度不断加强。在交流输电和电力系统大发展的同时,从50年代开始,又发展了高压直流输电技术,奠定了当今高压交/直流电力系统的基础。      今天,又是一个世纪之交。面对经济全球化趋势和科技迅猛发展的形势,有100多年历史的“古老”电力系统,在其发展的进程中,又将面临一系列新的挑战。
-recalled more than a century since the power industry and the development of electric power system, deeply as economic development and technical progress brought about by the tremendous changes. On the 80-century 1990s, the power system is the initial stage. According to the records, in 1882 in New York, the United States built the world's first complete power system. This is a generator, cables and load consisting of DC power systems. However, as the DC transmission system limitations, it was switched to AC transmission technology, and in a turn of the century, established the AC transmission system to further the development and application of the basic orientation, hence the exchange of this century, the high voltage electricity transmission system and the large-scale development. F Platform: |
Size: 21631 |
Author:111 |
Hits:
Description: We propose and analyze several timestamping of an MPEG-2 Transport Stream transmitted strategies for performing over a packet-switched network using the PCR-unaware encapsulation scheme, and analyze their effect on the quality of the recovered clock at the MPEG-2 Systems decoder. Platform: |
Size: 364544 |
Author:lucy |
Hits:
Description: 虚拟桌面(DeskWin)
在Linux下,X桌面系统的虚拟桌面系统把用户的工作区增加了很多,而Windows下却没有这样的功能,本软件就是在Windows下实现这种功能的软件。你可能会在有限的窗口中打开几十个窗口,可是Window的任务栏面积有限,在有几十个窗口时,你已经搞不清这些窗口到底谁是谁了。如果把这些窗口分成几组,岂不是很方便?有了虚拟桌面(DeskWin)软件,就能够帮你解决这个问题!在1号桌面打开工作要用的窗口(如AutoCAD、Word),切换到2号桌面打开realplay听歌,切换到3号桌面上网聊QQ,4号桌面可以开个小游戏.一下子你就相当于有四个显示器了.
-virtual desktop (DeskWin) in Linux, X desktop systems virtual desktop system to the user's work area increased, while Windows has no such function, the software is in Windows to achieve this function software. You may be in a limited window open dozens of windows, but the Windows task bar area is limited, in dozens of window, which you have come to the window in the end who is who. If this window is divided into several groups, it would be convenient? With virtual desktop (DeskWin) software, we can help you solve this problem! In the 1st working with the desktop to open the window (such as AutoCAD, Word) switch to open on the 2nd desktop realplay music, switched to the 3rd desktop Internet chat QQ, on the 4th desktop could open a small game. suddenly you have the equivalent of four mon Platform: |
Size: 88064 |
Author:李建 |
Hits:
Description: 目前,包括我国在内的许多国家都采用了H.323作为IP电话网关之间的协议,整个IP电话系统只是把IP网络作为传输媒介,在用户的接入上还是采用电路交换系统,把IP电话网关作为电路交换网和IP网络的接口。-Currently, including China, many countries had adopted H.323 IP telephony gateway as the agreement between the the entire IP phone system is to bring the IP network as a transmission medium, the user's access or use on circuit-switched systems, IP Telephony as a circuit-switched network and IP network interface. Platform: |
Size: 590848 |
Author:Jee |
Hits:
Description: 回顾一个多世纪以来电力工业和电力系统的发展,深感由于经济发展和技术进步带来的巨大变化。上世纪的80~90年代,是电力系统的初创时期。据记载,1882年在美国纽约建成了世界第一个完整的电力系统。这是一个由发电机、电缆和负载组成的直流电力系统。然而由于直流输电系统的局限性,人们转而研究交流输电技术,并在上一个世纪之交,确立了交流输电系统进一步发展和应用的基本取向,从而带来了本世纪交流高电压输电和电力系统的大发展。从本世纪初到60年代末,最高交流输电电压从12.44千伏和60千伏提高到735千伏和765千伏。在此期间,电力系统规模也迅速扩大,电网互联程度不断加强。在交流输电和电力系统大发展的同时,从50年代开始,又发展了高压直流输电技术,奠定了当今高压交/直流电力系统的基础。      今天,又是一个世纪之交。面对经济全球化趋势和科技迅猛发展的形势,有100多年历史的“古老”电力系统,在其发展的进程中,又将面临一系列新的挑战。
-recalled more than a century since the power industry and the development of electric power system, deeply as economic development and technical progress brought about by the tremendous changes. On the 80-century 1990s, the power system is the initial stage. According to the records, in 1882 in New York, the United States built the world's first complete power system. This is a generator, cables and load consisting of DC power systems. However, as the DC transmission system limitations, it was switched to AC transmission technology, and in a turn of the century, established the AC transmission system to further the development and application of the basic orientation, hence the exchange of this century, the high voltage electricity transmission system and the large-scale development. F Platform: |
Size: 21504 |
Author:111 |
Hits:
Description: 构建了一类可切换的三维自治混沌系统,通过系统选择器实现这类系统间的切换) 这类系统都由七项组成,且
都包含三项系统变量乘积的二次非线性项) 详细地分析了这类三维系统平衡点的性质、混沌吸引子的相图和
*+,-./01 指数等特性,设计了实现这类可切换系统的实际电路并进行了电路实验-Construction of a class of three-dimensional autonomous chaotic switching systems, the realization of the system selector to switch between such systems) are the seven components of such systems, and system variable contains the product of three quadratic nonlinear term) detailed analysis of such three-dimensional nature of the system equilibrium point, chaotic attractor of the phase diagram and properties of*+,-./ 01 index is designed to achieve this kind of switched systems can be the actual circuit and the circuit experiment Platform: |
Size: 268288 |
Author:wang |
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Description: 二阶线性切换系统稳定切换律的设计与仿真的源程序
-Second-order switched linear system is stable and the design and simulation of switching law Platform: |
Size: 41984 |
Author:afda |
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Description: 线性切换系统的客观性特性及观测器设计条件。给出了可观测性的充要条件。-Observability for Switched Linear Systems:
Characterization and Observer Design. A necessary and sufficient condition is presented
for observability, globally in time, when the system evolves under
predetermined mode transitions. Platform: |
Size: 4399104 |
Author:zifeng |
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Description: 通过研究二阶切换律,得到一种设计切换律的更普遍的方法。给出了切换律使切换系统渐近稳定的条件,最终通过实际的例子和Matlab的仿真呈现研究结果。(By studying the two order switching law, a more general method for designing switching laws is obtained. The switching laws are proposed to make the switched systems asymptotically stable. Finally, the results are presented through practical examples and Matlab simulations.) Platform: |
Size: 277504 |
Author:ewqs
|
Hits: