نتایج جستجو برای: added

تعداد نتایج: 135957  

Journal: :Chemistry - A European Journal 2018

Journal: :Bulletin of the Angarsk State Technical University 2020

Journal: :Journal of the American College of Radiology 2021

Journal: :Economic & Labour Market Review 2010

Journal: :Microelectronics Journal 2011
H. Bameri Ahmad Hakimi Masoud Movahhedi

In this paper a new linear power control technique is presented to control the output power of cascode power amplifiers. Using this technique the output power of power amplifier can be controlled from the maximum output power to 136 dBm, continuously. The characteristic of the output voltage versus control voltage is linear from 15.9 to 18.6 dBm (a range of 34.5 dB) of the output power. Also at...

2011
Marco Silva Pereira João Caldinhas Vaz

This paper presents a 30dBm (1W) class-E power amplifier projected in a standard 0.18-μm CMOS technology. The power amplifier (PA) consists in two differentials stages. The main stage employs a cascode class-E RF power amplifier with a self-biasing circuit. The driver stage uses the technique of Injection-Locking to substantially reduce the input power signal, maintaining a high gain. At 2.45 G...

Journal: :تحقیقات مالی 0
غلامرضا کرمی دکترای حسابداری، عضو هیئت علمی دانشگاه تهران، ایران محسن نظری دکترای اقتصاد، عضو هیئت علمی دانشگاه تهران، ایران سید مجتبی شفیع‎پور دانشجوی کارشناسی ارشد حسابداری دانشگاه تهران، ایران

the purpose of business entity is to maximize shareholders wealth by enhancing the firm’s value thus, getting expected returns are very important for them. investors and creditors are going to find a precise scale for measuring overall performance of a firm as a whole to decide whether to invest in the firm, to continue with the firm or to exit from it. economic value added (eva) is an analytic...

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