Results 21 to 30 of about 129,952 (301)

Reliability of Modules with Load-Sharing Components [PDF]

Journal of Applied Mathematics and Decision Sciences, 2007
To increase the reliability of modules, and thus of systems assembled from them, they are frequently constructed using parallel load-sharing components. Examples include jet engines, electrical power networks, and telecommunications networks. We consider the situation when the components operate independently, but when any one of them fails, the load ...
Mark Bebbington, Chin-Diew Lai, Ricardas Zitikis   +2 more
openaire   +2 more sources

Supply Modulation Behavior of a Doherty Power Amplifier

IEEE Journal of Microwaves, 2021
This paper presents a study of supply modulation in a Doherty power amplifier (DPA). To validate a simplified theoretical model, a 3.5 GHz conventional symmetrical DPA using a 6-W packaged GaN pHEMT is designed for supply modulation of the main and/or ...
Dan Fishler, Zoya Popovic, Taylor Barton
doaj   +1 more source

New Compact Load Network for Doherty Power Amplifiers Based on L-Section Matching Network of the Carrier Amplifier and Post-Matching Network

IEEE Access, 2023
This paper presents a new compact load network for Doherty power amplifiers (DPAs) with only two matching networks, such as an output matching network of the carrier amplifier, and the post-matching network (PMN), even in the presence of parasitic ...
Yifei Chen, Woojin Choi, Jaekyung Shin, Hyeongjin Jeon, Sooncheol Bae, Soohyun Bin, Sunwoo Nam, Young Chan Choi, Hyunuk Kang, Kang-Yoon Lee, Keum Cheol Hwang, Youngoo Yang   +11 more
doaj   +1 more source

Blinded by the load: attention, awareness and the role of perceptual load. [PDF]

, 2014
What is the relationship between attention and conscious awareness? Awareness sometimes appears to be restricted to the contents of focused attention, yet at other times irrelevant distractors will dominate awareness.
Nikos Konstantinou (3323979), Beck, DM, Konstantinou, N, Konstantinou, Nikos, Beck, Diane M, Lavie, N, Beck, Diane M., Nilli Lavie (3323976), Diane M. Beck (394352), Lavie, Nilli   +9 more
core   +1 more source

High working memory load leads to more Ebbinghaus illusion [PDF]

, 2009
The evidence that distractor processing increases with greater load on working memory has come mainly from Stroop-type interference tasks, making it difficult to establish whether cognitive load affects distractor processing at the perceptual level or ...
De Fockert, J. W., Wu, Si
core   +1 more source

Characterization Setup for Device Level Dynamic Load Modulation Measurements

, 2009
A dynamic load modulation characterizationmethod is presented. The method gives insight into the deviceoperation under dynamic load modulation conditions.
Fager, Christian,, Andersson, Kristoffer,, Thorsell, Mattias,   +2 more
core   +2 more sources

Optimal PI controller based PSO optimization for PV inverter using SPWM techniques

Energy Reports, 2022
This paper deals with the inverter controller utilizing Sinusoidal Pulse Width Modulation (SPWM) to control the three-phase off-grid system’s modulation index.
Maher G.M. Abdolrasol, M.A. Hannan, S.M. Suhail Hussain, Taha Selim Ustun   +3 more
doaj   +1 more source

Research on the scheme for electrical vehicle aggregators participating in the frequency modulation auxiliary service market

Zhejiang dianli, 2023
A great number of electric vehicle （EV） charging piles can participate in the electricity spot market and auxiliary service market through load aggregation to comprehensively optimize operating costs.
LUAN Jie, LI Liang, LU Feng, ZHENG Songsong, LIU Haifeng, LI Yuan, HONG Min   +6 more
doaj   +1 more source

Load Mismatch Compensation of Load-Modulated Power Amplifiers: A Comprehensive Review

Energies
With the diversification, acceleration, and arraying of wireless communication systems, power amplifiers (PAs) face stricter demands in terms of RF operation bandwidth, high-efficiency power range, and load mismatch compensation.
Yufeng Zang, Weimin Shi, Jinting Liu, Tian Qi, Mingyu Li   +4 more
doaj   +1 more source

Attentional load and sensory competition in human vision: Modulation of fMRI responses by load fixation during task-irrelevant stimulation in the peripheral visual field.

, 2005
Perceptual suppression of distractors may depend on both endogenous and exogenous factors, such as attentional load of the current task and sensory competition among simultaneous stimuli, respectively. We used functional magnetic resonance imaging (fMRI)
Schwartz, S., Veilleumier, P., Driver, Jon, Driver, J., Angelo Maravita, Dolan, R. ; https://orcid.org/, Vuilleumier, Patrik, Maravita, A., Dolan, R. J., Jon Driver, Maravita, Angelo, Dolan, R.J., Patrik Vuilleumier, Hutton, Chloe, Vuilleumier, P., Raymond J. Dolan, Schwartz, Sophie, Sophie Schwartz, Hutton, C., Chloe Hutton   +19 more
core   +1 more source