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تعداد نتایج: 696137  

1999
D. Sawdai X. Zhang D. Pavlidis P. Bhattacharya

Recently, small-signal microwave performance has been reported for PNP InAlAs/InGaAs HBTs [1, 2]. While power performance of PNP AlGaAs/GaAs HBTs has been demonstrated [3], nothing has been reported on power performance of PNP HBTs in the InP material system. In this work, InAlAs/InGaAs PNP HBTs were fabricated and subsequently characterized under large signal conditions at X-band to determine ...

2004
Xuxian Jiang Dongyan Xu

We propose a novel application-level virtual network architecture called VIOLIN (Virtual Internetworking on OverLay INfrastructure). VIOLINs are isolated virtual networks created on top of an overlay infrastructure (e.g., PlanetLab). Entities in a VIOLIN include virtual end-hosts, routers, and switches implemented by software and hosted by physical overlay hosts. Novel features of VIOLIN includ...

2001
Y. Chung S. Cai W. Lee Y. Lin C. P. Wen K. L. Wang

A high power wideband feedback amplifier module using AlGaN/GaN high electron mobility transistor (HEMT) has been developed that covers the frequency range of DC to 5GHz with small signal gain of 9 dB. Shunt feedback topology is introduced by adding inductances to increase the bandwidth. At midband frequency, power added efficiency (PAE) of 20 % and saturation power level of 29.5 dBm were obtai...

The phenomenon of tax evasion has been always one of the most major issues among economists due to it's devastating effects on the economy and the process of economic development. Many scholars have always sought to provide solutions to reduce and limit tax evasion. The introduction of the VAT system can be seen as a milestone in the area of economic transparency and tax evasion, which refers t...

1997
Edward J. Baranoski James Ward

b b b b b q b b b b b b b b SOURCE LOCALIZATION USING ADAPTIVE SUBSPACE BEAMFORMER OUTPUTS ABSTRACT 1. INTRODUCTION

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