Results 21 to 30 of about 729,163 (300)
, 2020 The mitochondrial cytochrome c oxidase, the terminal enzyme of the respiratory chain, contains heme and copper centers for electron transfer. The conserved COX2 subunit contains the CuA site, a binuclear copper center.
Aich, A. +11 more
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High quality graphene synthesized by atmospheric pressure CVD on copper foil [PDF]
, 2013 Graphene was synthesized at 1000°C by Atmospheric Pressure Chemical Vapor Deposition on copper foil from methane diluted in argon and hydrogen. The influence of the main synthesis parameters was studied on 2x2 cm2 foils in order to obtain continuous ...
Alexandru Delamoreanu +26 more
core +4 more sources
Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings
Energies, 2019 This paper aims to propose and compare three new structures of single-phase field excited flux switching machine for pedestal fan application. Conventional six-slot/three-pole salient rotor design has better performance in terms of torque, whilst also ...
Lutf Ur Rahman +7 more
doaj +1 more source
Effect of Magnetic Properties of Magnetic Composite Tapes on Motor Losses
Energies, 2022 Alternating current (AC) copper losses in motors increase with carrier frequency of the pulse width modulation (PWM) and are further increased by leakage flux of the permanent magnet. Therefore, AC copper losses increase with motor speed.
Ryo Yoshida +9 more
doaj +1 more source
Q-band electron nuclear double resonance (ENDOR) and X-band EPR of the sulfobetaine 12 heat-treated cytochrome c oxidase complex [PDF]
, 1997 Heat treatment of the bovine cytochrome c oxidase complex in the zwitterionic detergent sulfobetaine 12 (SB-12) results in loss of subunit III and the appearance of a type II copper center as characterized by electron paramagnetic resonance (EPR ...
Chan, Sunney I. +4 more
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Results in Engineering, 2022 High-resistance connection fault can result in the increasing of power loss and the rise of heat, so the electric machine drive system possibly can be damaged.
Fan Chen +4 more
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Measurements of Antenna Surface for Millimeter-Wave Space Radio Telescope [PDF]
, 2010 In the construction of a space radio telescope, it is essential to use materials with a low noise factor and high mechanical robustness for the antenna surface.
Doi, Akihiro +3 more
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Semi-Empirical Model for Precise Analysis of Copper Losses in High-Frequency Transformers
IEEE Access, 2018 Accurately estimating the copper losses is essential for the elaborate design of high-frequency (HF) transformers used in high-power isolated dc-dc converters.
Bin Chen, Lin Li
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Influence of PWM on the proximity loss in permanent magnet brushless AC machines [PDF]
, 2008 The winding copper loss can be significantly increased due to skin and proximity eddy current effects. The skin and proximity losses due to fundamental frequency current has been investigated in literature, but the influence of PWM on the skin and ...
Bremner, J. +5 more
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Optimal torque control of fault-tolerant permanent magnet brushloss machines [PDF]
, 2003 Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes.
Atallah, K., Howe, D., Wang, J.B.
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