Results 91 to 100 of about 191,656 (310)

Effect of losses in an active device and harmonic network on the efficiency of Class F and inverse Class F power amplifiers

, 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, Korolkiewicz, Edward, Danaher, Sean, Sambell, Alistair, Liu, Lei, Lu, Qing   +5 more
core  

Three-phase power conversion system for utility-interconnected PV applications. Phase 1 technical progress report, 1 October 1995--17 April 1997

, 1998
This report describes work performed by Omnion Power Corporation under Phase 1 of a two-phase subcontract. During this phase, Omnion researchers: designed an advanced product specification to guide prototype design and development; analyzed field failure
Porter, D. G., Leang, W., Meyer, H.
core   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

FEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno, Shota Yamazaki, Hiromichi Hoshina, Masahiko Harata   +3 more
wiley   +1 more source

Efficiency-Based CLLC Bidirectional DC-DC Converter Using Copolar Switching

Energies
This paper introduces a novel switching method called copolar switching, designed to maintain high power efficiency in CLLC bidirectional chargers across different modes of operation.
Yueh-Tsung Hsieh, Chun-Hao Chen, Wen-Yuh Shieh, Chi-Chun Haung, Wei-Hua Chieng, Edward Yi Chang   +5 more
doaj   +1 more source

Effects of waveguide length and pump power on the efficiency of wavelength conversion in silicon nanowire waveguides

, 2009
We point out the use of a wrong definition for conversion efficiency in the literature and analyze the effects of the waveguide length and pump power on conversion efficiency according to the correct definition.
Geng MM (Geng Minming), Chen P (Chen Ping), Fang Q (Fang Qing), Yu MB (Yu Mingbin), Zhang L (Zhang Lei), Yang L (Yang Lin), Jia, LX, Chinese Acad Sci, Inst Semicond, Optoelect Syst Lab, Beijing 100083, Peoples R China. 电子邮箱地址: jialx@semi.ac.cn, Jia LX (Jia Lianxi), Liu YL (Liu Yuliang)   +8 more
core  

Feasibility of high frequency alternating current power distribution for the automobile auxiliary electrical system [PDF]

, 2011
This study investigates the feasibility and potential benefits of high frequency alternating current (HFAC) for vehicle auxiliary electrical systems. A 100Vrms, 50kHz sinusoidal AC bus is compared with 14V DC and 42V DC electrical systems in terms of ...
Antaloae, C. C.
core  

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

A Flexible Maximum Power Point Tracking Control Strategy Considering Both Conversion Efficiency and Power Fluctuation for Large-inertia Wind Turbines

Energies, 2017
In wind turbine control, maximum power point tracking (MPPT) control is the main control mode for partial-load regimes. Efficiency potentiation of energy conversion and power smoothing are both two important control objectives in partial-load regime ...
Hongmin Meng, Tingting Yang, Ji-zhen Liu, Zhongwei Lin   +3 more
doaj   +1 more source

Dose‐dependent hepatotoxicity of hydrogen peroxide in HepG2 cells and its modulation by CYP450 induction

FEBS Open Bio, EarlyView.
NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks, Garth L. Maker, Emily C. Davies, Berin A. Boughton, Samantha Lodge   +4 more
wiley   +1 more source

Internal Power Loss Modeling and Efficiency Evaluation of Full-Bridge DC–DC Converters Based on Load-Current-Dependent Loss Coefficients

Energies
In this paper, a theoretical methodology is proposed for the systematic analysis of the power conversion efficiency of a full-bridge converter. Using the steady-state analysis results derived from the equivalent circuit, we introduced the concept of ...
Houngkun Joung, Taeyoung Ahn, Myeonghun Cho   +2 more
doaj   +1 more source