Results 271 to 280 of about 20,817,051 (316)

High‐powered automobile stereos

Otolaryngology–Head and Neck Surgery, 1993
We measured the owner‐adjusted acoustic outputs of 10 automobile stereo systems, with power ratings ranging between 150 and 600 watts. The sound levels ranged from 107 to 138 dB SPL and 84 to 108 dBA. Most of the high‐Intensity sound was in the 31, 62, and 125 Hz center‐frequency octave bands.
K L, Ramsey, F B, Simmons
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High performance at affordable power

IEEE Micro, 2005
Regardless of what chip a team is designing, energy efficiency is probably one of the most important criteria. Achieving high performance at affordable power (and therefore, cost) is the overall system goal across a whole range of products that serve the home, entertainment, scientific, and commercial-enterprise segments of the information technology ...
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A High Voltage High Power Switching Power Amplifier

2023 IEEE 5th International Conference on Power, Intelligent Computing and Systems (ICPICS), 2023
Hongcai Zhang, Kanli Tian, Chen Chen, Wang Zhang, Kuihua Zhang, Yaming Qin   +5 more
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High power and high efficiency Ka band power amplifier

2015 IEEE MTT-S International Microwave Symposium, 2015
A 36 W Ka-band MMIC power amplifier using 0.2 um gate GaN HEMT technology is presented. The power was measured across 27 to 30 GHz with a minimum 30% PAE. A peak power of 40 W at 27 GHz was demonstrated. The MMIC area is a compact 13.5 mm^2 and uses 10.67 mm device periphery in the output stage.
Salah Din, Mike Wojtowicz, Mansoor Siddiqui   +2 more
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High Power Fiber Lasers

Optical Fiber Communication Conference, 2017
• Optical fibers are an extraordinary active medium… • …but thermal effects cannot be simply neglected anymore. • Recently a serious new limitation has been discovered: Mode Instabilities. • This has quickly become the most limiting factor for the futher scaling of fiber systems.
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High-Availability Power for MX

IEEE Power Engineering Review, 1982
With modern computer-based analyses it was sible to optimize an extensive power transmission and distribution network for supplying power to MX missile shelter sites. This network would serve some 4600 of these sites, located in suitable contiguous areas, with the shelter sites spaced one mile apart.
H. Oman, C. Bannon
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SESAMs for high-power lasers

Conference on Lasers and Electro-Optics, 2016
We present novel fast MOVPE-grown SESAMs with enhanced damage threshold and surface quality suitable for power-scaling of modelocked laser oscillators to enable ultrafast lasers in the kilowatt average power regime.
Alfieri Cesare, Diebold Andreas, kopp Michael, Waldburger Dominik, Mangold Mario, Emaury Florian, Saraceno Clara J., Gini Emilio, Keller Ursula   +8 more
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High-Power Microwave Photodiodes

Optical Fiber Communication Conference, 2014
The talk reviews modified uni-traveling carrier photodiodes that are capable of delivering high RF output power levels of >1 Watt. Discrete photodiodes, balanced detectors, photodiode arrays, and waveguide photodiodes are discussed.
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High Tc for the power grid

Nature Materials, 2007
Numerous prototypes of electric power devices based on high-temperature superconductors have been successfully demonstrated. Materials research over the next decade will improve cost-performance and accelerate commercialization.
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Increase in frequency of nuclear power outages due to changing climate

Nature Energy, 2021
Ali Ahmad
exaly