Ngày tải lên: 22/06/2014, 22:20
High-Speed WLANs and WLAN Security
... is a proposed standard that will increase the speed of WLANs to 108 Mbps • 802.11r is a proposed standard for fast roaming • HiperLAN/2 is a high- speed WLAN specification that is similar to the ... Multiplexing (OFDM) – Splits a high- speed digital signal into several slower signals running in parallel – Sends the transmission in parallel across several lower -speed channels 23 Summary (continued) • OFDM ... beginning to appear in new equipment 5 U-NII Frequency Band (continued) Wireless Communications High- Speed WLANs and WLAN Security 9 Orthogonal Frequency Division Multiplexing • Multipath distortion – Receiving...
Ngày tải lên: 13/09/2012, 10:52
Ngày tải lên: 05/09/2013, 08:40
Improvement of Water Quality by Removal of Suspended Solids and High-speed Biological Filtration in Closed Water Body
Ngày tải lên: 05/09/2013, 08:40
bài giảng-vhdl - Very High speed integrated circuit Description Language
Ngày tải lên: 12/09/2013, 22:38
High-Speed Data Interface Modules
... interfaces • Interoperable with standard router platforms • High- speed serial connectivity up to 4.608 Mbps • Simple Installation and configuration High- Speed Data Interface Modules ... n x 56/64 kbps rates up to a maximum of 4.608 Mbps. The Campus-RS SDI can be used to provide high- speed connectivity for industry-standard bridge/router type devices within a private network ... copper infrastructure. The SDI modules provide fractional bandwidth on the integrated local data port at speeds ranging from 56 kbps to 4.608 Mbps and provide a variety of data clocking options including...
Ngày tải lên: 18/10/2013, 19:15
BUILDING HIGH-SPEED DATA OVER VOICE NETWORKS
... create a high- speed data network using its existing voice infrastructure in more than 300 metropolitan and rural markets. Without this service upgrade, the carrier stands to lose significant high- value ... customers to new providers of high- speed services in many of its key markets. STRATEGY Design and deploy a DSLAM solution rapidly and efficiently while maintaining the highest standards of quality ... maintaining the highest possible quality standards, which dramatically improved the carrier’s competitive position and ability to capture new revenue from the delivery of value-added high- speed services. CASE...
Ngày tải lên: 27/10/2013, 00:15
Tài liệu High Speed Precision Motion Control doc
... advanced control algorithms for mechatronic systems. Some past re- lated projects include high speed and high precision control of head actuators of HDDs, semiconductor manufacturing systems (a ... business Boca Raton London New York Edited by Takashi Yamaguchi Mitsuo Hirata Chee Khiang Pang High- Speed Precision Motion Control ix 7.4 Overview of the HDD Benchmark Problem Version 3 . . . ... professors researching HDD servo control and HDD company engineers for their efforts in evolving high- speed precision motion control technology. We have learned a lot through various technical discussions...
Ngày tải lên: 18/02/2014, 22:20
Tài liệu ECONOMIC, ENVIRONMENTAL AND ENERGY ASSESSMENT OF THE TURIN-LYON HIGH-SPEED RAIL pdf
... that the High- Speed Train Turin-Lyon is not a priority for Italy and France, and its construction should be immediately stopped. INTRODUCTION The construction of the High Speed Railway ... Citizenship, a Case Study. The Controversy of High- Speed Rail in the Susa Valley; Paolo Beria, Raffaele Grimaldi, 2011. An Early Evaluation of Italian High Speed Projects. Tema, 4(3): 15-28. http://www.tema.unina.it. ... at a speed of 150 kilometers per hour and have to stop and spend most of their time in a transit station when they arrive in Italy. Concerning passengers, it makes sense to talk of High Speed...
Ngày tải lên: 20/02/2014, 19:20
Tài liệu Báo cáo khoa học: "A HARDWARE ALGORITHM FOR HIGH SPEED MORPHEME EXTRACTION AND ITS IMPLEMENTATION" pptx
... for high speed morpheme extraction, and also de- scribes its implementation on a specific machine. This machine, MEX.I, is designed as the first step 313 A HARDWARE ALGORITHM FOR HIGH SPEED ... accelerators, a hardware approach to the parsing speed- up (Fukushima, 1989b) -(Fukushima, 1990a). This paper describes a new hardware algorithm for high speed morpheme ex- traction and its implementation ... is suitable for VLSI implementation. Ac- tually, its VLSI implementation is in progress. A high speed morpheme extraction VLSI will im- prove the performance of such text processing ap- plications...
Ngày tải lên: 21/02/2014, 20:20
Báo cáo khoa học: "Randomized Algorithms and NLP: Using Locality Sensitive Hash Function for High Speed Noun Clustering" pdf
... to be quite difficult. However, we are mainly concerned with evaluating the quality and speed of our high speed randomized algorithm. The web cor- pus is used to show that our framework is web- scalable, ... Computational Linguistics Randomized Algorithms and NLP: Using Locality Sensitive Hash Function for High Speed Noun Clustering Deepak Ravichandran, Patrick Pantel, and Eduard Hovy Information Sciences ... is widely used in NLP for various applications such as clustering. In this paper, we perform high speed similarity list creation for nouns collected from a huge web corpus. We linearize this...
Ngày tải lên: 08/03/2014, 04:22
Báo cáo khoa học: "A High-Speed Large-Capacity Dictionary System" docx
... average size of the truncate lists and increasing by a slight amount the speed of the look-up process. The extent to which speed could be increased by adding more letter tables is quite limited, ... or even the fifth letter, but for 105 [ Mechanical Translation , Vol.6, November 1961] A High- Speed Large-Capacity Dictionary System by Sydney M. Lamb and William H. Jacobsen, Jr.,* University ... from the fact that the limits of the ca- pacity of core storage would be exceeded, it would be a highly inefficient utilization of space since the great pre- ponderance of the table entries would...
Ngày tải lên: 16/03/2014, 19:20
ECONOMIC, ENVIRONMENTAL AND ENERGY ASSESSMENT OF THE TURIN-LYON HIGH-SPEED RAIL potx
... that the High- Speed Train Turin-Lyon is not a priority for Italy and France, and its construction should be immediately stopped. INTRODUCTION The construction of the High Speed Railway ... p-km and t-km come out to be more than 30% higher for HSR than for IC train [M. Federici, S. Ulgiati, R. Basosi,2008] and likely to be even higher than highway track transport in times of dramatic ... at a speed of 150 kilometers per hour and have to stop and spend most of their time in a transit station when they arrive in Italy. Concerning passengers, it makes sense to talk of High Speed...
Ngày tải lên: 17/03/2014, 07:20
The Economic Effects of High Speed Rail Investment pot
... share (%) (1) High speed only Paris-Bruselles (2) High speed only Rome-Florence (3) High speed only Rome-Florence (4) Upgraded conventional line Figure 2. HSR market share and railway speed Madrid-Barcelona Madrid-Seville Paris-Amsterdam Paris-Brussels Paris-London Paris-Lyon Rome-Bologna Rome-Milan Tokyo-Osaka Stockholm-Gotteborg 0 50 100 150 200 250 0 ... the benefit of the railways. 2 High speed trains require high speed infrastructure, meaning that new dedicated track need to be built at a cost substantially higher than the conventional rail ... (though the average commercial speed is substantially below the technically feasible speed) . At the beginning of 2008 there were about 10,000 kilometres of new high speed lines in operation around...
Ngày tải lên: 17/03/2014, 08:20
Gabriel Ahlfeldt and Arne Feddersen From periphery to core: economic adjustments to high speed rail docx
... evaluates the economic effects of high speed rail in the realm of recent eco- nomic geography research. As a distinctive feature, the Cologne-Frankfurt German high speed rail track, which is analyzed ... two small cities is just about 20 km and the high speed ICE train only needs 9 minutes between both stops, which is in con- trast to the concept of high velocity travelling that has its comparative ... congestion of highways and skyways, which further suffer from terror- ism threats and security costs, high speed rail (HSR) systems are increasingly attracting the attention of transport planners and...
Ngày tải lên: 17/03/2014, 08:20
High speed digital system design a handbook of interconnect theory and design practices john wiley
... required for modern high- speed designs. This fact leads to a surprisingly large amount of misinformation to propagate through engineering circles. Often, the concepts of high- speed design are ... Furthermore, at high frequencies, complex interactions occur between the different parts of the same interconnect, such as the packages, connectors, vias, and bends. All these high- speed effects ... a computer motherboard. These systems operate at high frequencies at which conductors no longer behave as simple wires, but instead exhibit high- frequency effects and behave as transmission...
Ngày tải lên: 05/04/2014, 23:04
hsdpahsupa for umts high speed radio access for mobile communications
Ngày tải lên: 01/06/2014, 09:38