Results 41 to 50 of about 7,683 (202)
Engineering Reports, Volume 8, Issue 3, March 2026.This paper proposes a doubly fed induction generator rotor voltage compensation control to address transient voltage dips in renewable‐rich grids. By compensating for rotor electromotive forces, it suppresses current fluctuations and surges during asymmetrical faults.
Xiaoning Li +4 more
wiley +1 more source
Ecology Letters, Volume 29, Issue 3, March 2026.We tested hypotheses about adaptation across elevational range limits in Erythranthe laciniata, a montane plant endemic to the Sierra Nevada. Using common garden experiments, we found highest fitness and strongest climate adaptation at high elevations, suggesting potential for range expansion and challenging assumptions of limited adaptive potential at
Jackie E. Shay +4 more
wiley +1 more source
A tunable cavity-locked diode laser source for terahertz photomixing [PDF]
, 2000 An all solid-state approach to the precise frequency synthesis and control of widely tunable terahertz radiation by differencing continuous-wave diode lasers at 850 nm is reported in this paper.
Blake, Geoffrey A. +4 more
core +1 more source
IEEE Photonics Journal, 2015 We report herein an all-fiber single-frequency master oscillator power amplifier (MOPA) at 1550 nm with Er/Yb-codoped active fiber and wavelength-stabilized 976-nm LD pump source. A pump-limited maximum continuous-wave output power of 56.4 W was achieved
Xiaolei Bai +5 more
doaj +1 more source
Thermal effects in kilowatt all-fiber MOPA
Optics Express, 2011 Thermal effects and output power characteristics of kilowatt all-fiber master-oscillator power amplifier (MOPA) are investigated. Proper designs for cooling apparatus are proposed and demonstrated experimentally, for the purpose of minimizing splice heating which is critical for the reliability of high power operation. By using these optimized methods,
Yuanyuan, Fan +7 more
openaire +2 more sources
Advanced Materials, Volume 38, Issue 5, 22 January 2026.This review systematically examines recent advances in non‐aqueous electrolytes for rechargeable magnesium batteries, focusing on chlorine‐containing and chlorine‐free systems. It highlights the interdependent relationship between electrolyte compositions, atomistic structures, and electrochemical performance.
Hao Xu +10 more
wiley +1 more source
Atmosphere, 2020 This study focuses on assessing the health risk by particulate matter (PM) inhalation within the Abuja municipal area, Nigeria. Particulate matters (PM2.5 and PM10), HCHO and VOCs were collected by A handheld portable smart air quality detector BR-SMART ...
Nathaniel Mopa Wambebe, Xiaoli Duan
doaj +1 more source
A Novel Lifetime Model With A Bathtub-Shaped Hazard Rate: Properties & Applications
Journal of Applied Science and Engineering, 2022 A novel three-parameter lifetime model called the Marshall Olkin power Ailamujia (MOPA) distribution is developed. The statistical qualities and reliability characteristics of the proposed model are examined, including moment, generating function ...
Abdullah H. Al-nefaie, Ibrahim E. Ragab
doaj +1 more source
Advanced Energy Materials, Volume 16, Issue 3, 21 January 2026.Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang +12 more
wiley +1 more source
IET Image Processing, Volume 20, Issue 1, January/December 2026.This paper proposes a novel image steganographic method based on an enhanced Pyramid Integer Wavelet Transform (PIWT) combined with a Modified Optimal Pixel Adjustment Process (MOPAP). The PIWT enables integer‐to‐integer transformation, avoiding floating‐point computations and improving its suitability for efficient implementation.
Ali Yahya Al‐Ashwal +2 more
wiley +1 more source