Results 91 to 100 of about 980,794 (310)
High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique
, 2010 Due to complex envelope and phase modulation employed in modern transmitters it is necessary to use power amplifiers that have high linearity. Linear power amplifiers (classes A, B and AB) are commonly used, but they suffer from low efficiency especially
Alou Cervera, Pedro +9 more
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Green Energy & EnvironmentBiochar has been widely recognized as a promising solid CO2 adsorbent with economic and ecological benefits. Industrial CO2 emissions originate from diverse sources, while the pore structure and chemical functional groups of biochar exhibit varying ...
Jialiang Dong +7 more
doaj +1 more source
Molecular Oncology, EarlyView.Radiotherapy (RT) response depends on the DNA repair capacity of tumor and host cells. We show that circulating tumor cell (CTC) counts and apoptosis rates before and after RT predict treatment response and outcome, which can be accessed via easily accessible liquid biopsy approaches. Created in BioRender. Wikman, H.
Yvonne Goy +10 more
wiley +1 more source
Efficiency vs. market-power effects in the mobile-voice industry [PDF]
This paper suggests a new procedure for separating the market-power effect from the efficiency effect when cost data are not available. We examine a panel of data on 177 mobile-voice operators in 45 countries from 1999:1 to 2004:2 and find that a 1 ...
Corrado Andini
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Efficiency-based current distribution scheme for scalable digital power converters
, 2011 The trend in next-generation switched-mode power supplies will lead to modular, scalable solutions, which deliver power efficiently over a wide range of operation.
Mark Halton +8 more
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Molecular Oncology, EarlyView.The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka +9 more
wiley +1 more source
Case Studies in Thermal EngineeringFreezing is one of the important factors affecting the efficiency and safety of cooling towers in winter. The traditional anti-freezing method, which takes the increase in the outlet water temperature as an evaluation index for the anti-freezing ...
Lei Zhang +3 more
doaj +1 more source
Perfomance and Efficiency in Colombia's Power Distribution Sistem: Effects of the 1994 Reform [PDF]
We asess evolution in perfomance, efficiency and productivity of Colombia's power distribution utilitiesbefore and after the 1994 regulatory reform that introduced electricity market activities for the power sector in 12 distribution companies from 1985 ...
Carlos Pombo, Rodrigo Taborda
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An efficiency optimization scheme for bidirectional inductive power transfer systems
, 2014 Unidirectional inductive power transfer (UIPT) systems allow loads to consume power while bidirectional IPT (BIPT) systems are more suitable for loads requiring two way power flow such as vehicle to grid (V2G) applications with electric vehicles (EVs ...
Foo, Gilbert +6 more
core +1 more source
, 2012 High frequency class F and inverse class F power amplifiers obtain high efficiency of dc to ac power conversion, by reducing the overlap of voltage and current waveforms at the output of the active device, to ensure that the power dissipated in the ...
Ghassemlooy, Zabih +5 more
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