Results 81 to 90 of about 192,634 (311)

Analysis of thermoelectric energy conversion efficiency with linear and nonlinear temperature dependence in material properties [PDF]

open access: yes, 2017
A novel approach to estimate energy conversion efficiency for a power-generating thermoelectric element, whose material properties possess both linear (first order) and nonlinear (second order) dependence on temperature, is developed by solving the ...
위대현
core   +1 more source

Phonon-assisted absorption photoconductive switch

open access: yesOpto-Electronic Science
High-power microwave technology shows great promise for applications in low-altitude security systems such as countering non-cooperative unmanned aerial vehicles.
Zhao Wang   +10 more
doaj   +1 more source

Novel MPPT method based on large variance GA-RBF

open access: yesThe Journal of Engineering, 2019
The photoelectric conversion efficiency of photovoltaic cells is mainly affected by temperature and irradiance. In order to promote the development of photovoltaic power generation, it is necessary to improve the photoelectric conversion efficiency of ...
Zhang Jing   +4 more
doaj   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

open access: yesMolecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho   +2 more
wiley   +1 more source

Demonstration of GaN optical power converter with 60% power conversion efficiency

open access: yesApplied Physics Express
We demonstrate a GaN optical power converter (OPC) achieving a power conversion efficiency of 60.2% under monochromatic light illumination at 401 nm. The device maintains high performance under a high illumination intensity of 96 W cm ^−2 and at a high ...
Hisashi Ogawa   +2 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Modeling of multi-junction photovoltaic cell using MATLAB/Simulink to improve the conversion efficiency [PDF]

open access: yes, 2015
© 2014 Elsevier Ltd. This paper focuses on modeling of multi-junction solar cell (MJSC) to improve the conversion efficiency using MATLAB/Simulink software.
Wongsodihardjo, H.   +8 more
core   +1 more source

High-Efficiency Multistage Charge Pump Rectifiers Design

open access: yesEnergies
This paper presents an advanced radio frequency (RF)–direct current (DC) power conversion architecture based on a multistage Cockcroft–Walton topology.
Ying Wang, Ce Wang, Shiwei Dong
doaj   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

open access: yesFEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee   +3 more
wiley   +1 more source

POWER CONDITIONING UNIT FOR SMALL SCALE HYBRID PV-WIND GENERATION SYSTEM [PDF]

open access: yes, 2011
Small-scale renewable energy systems are becoming increasingly popular due to soaring fuel prices and due to technological advancements which reduce the cost of manufacturing.
AHMED-MAHMOUD, ASHRAF
core  

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