Results 111 to 120 of about 382,191 (300)

Electron Heating in High Mach Number Collisionless Shocks

Physical Review Letters
The energy partition in high Mach number collisionless shock waves is central to a wide range of high-energy astrophysical environments. We present a new theoretical model for electron heating that accounts for the energy exchange between electrons and ions at the shock.
A. Vanthieghem, V. Tsiolis, A. Spitkovsky, Y. Todo, K. Sekiguchi, F. Fiuza   +5 more
openaire   +5 more sources

Monolithic Integration of ScAlN Modulators on Silicon‐On‐Insulator Platform

Laser &Photonics Reviews, EarlyView.
Monolithic integration of scandium‐doped aluminum nitride (ScAlN) modulators on a silicon‐on‐insulator platform is reported. A multilayer electrode design enhances RF‐optical field overlap, enabling direct access to the diagonal electro‐optic coefficient and improved modulation efficiency.
Sihao Wang, Bo Li, Lin Zhou, Victor Leong, Nanxi Li, Xianshu Luo, Di Zhu   +6 more
wiley   +1 more source

Nonmodal energy growth and optimal perturbations in compressible plane Couette flow

, 2008
Nonmodal transient growth studies and estimation of optimal perturbations have been made for the compressible plane Couette flow with three-dimensional disturbances.
J. Dey, M. Malik, Meheboob Alam, Orr W. M. F.   +3 more
core   +1 more source

Intergrain forces in low-Mach-number plasma wakes

Physical Review E, 2012
Large-scale particle-in-cell calculations of the plasma wake interactions of two negatively charged grains smaller than the Debye length are carried out using the COPTIC code over a wide range of subsonic plasma flow velocities. In plasmas with temperature ratio $T_e/T_i=100$, it is found that a single grain's oscillatory wake disappears for flow Mach ...
openaire   +5 more sources

Assimilation of European and global Mode‐S aircraft observations into the Met Office global deterministic numerical weather prediction model

Quarterly Journal of the Royal Meteorological Society, EarlyView.
European and global Mode‐S aircraft reports have been assimilated into the Met Office global deterministic numerical weather prediction model, improving forecast accuracy for wind, temperature, and geopotential height. This is the first time global Mode‐S network data have been assimilated, which include data from under‐observed regions, and has ...
Elliott Warren, Warren Tennant, Edmund Stone, Joanne Waller, Christopher Thomas, Adam Maycock   +5 more
wiley   +1 more source

Altitude performance of a low-noise-technology fan in a turbofan engine with and without a sound suppressing nacelle [PDF]

Test variables were inlet Reynolds number index (0.2 to 0.5), flight Mach number (0.2 to 0.8), and flow distortion (tip radial and combined circumferential - tip radial patterns). Results are limited to fan bypass and overall engine performance.
Abdelwahah, M., Biesiadny, T. J., Grey, R. E.   +2 more
core   +1 more source

Case Study of Four Homologous Large-Scale Coronal Waves Observed on 2010 April 28 and 29

, 2011
On 2010 April 28 and 29, the Solar TErrestrial Relations Observatory B/Extreme Ultraviolet Imager observed four homologous large-scale coronal waves, the so-called EIT-waves, within 8 hr.
Attrill, Biesecker, Chen, Cohen, Gopalswamy, Kienreich, Long, Muhr, Patsourakos, Priest, Thompson, Veronig, Veronig, Veronig, Wang, Wills-Davey   +15 more
core   +1 more source

Climate Crisis, Human Mobility and Security Challenges in the MENA Region: Implications for Sustainable Development and Regional Stability

Sustainable Development, EarlyView.
ABSTRACT This study examines the interplay between climate change, violent conflict and forced migration in the Middle East and North Africa (MENA), focusing on asylum flows to the European Union (EU). By integrating high‐resolution climate, conflict and socioeconomic data spanning 2000 to 2023, we develop a comprehensive empirical framework to ...
Shifa Mathbout, George Boustras, Pierantonios Papazoglou, Javier Martin‐Vide, Joan A. Lopez‐Bustins   +4 more
wiley   +1 more source

High Reynolds Number Test of the Boeing TR77 Airfoil in the Langley 0.3-Meter Transonic Cryogenic Tunnel [PDF]

A Boeing TR77 airfoil associated with the Advanced Technology Airfoil Test (ATAT) program was tested in the Langley 0.3 m Transonic Cryogenic Tunnel. Limited analysis of the data indicated that increasing Reynolds number for a fixed Mach number resulted ...
Chu, Julio, Flechner, Stuart G., Hill, Acquilla S., Rozendaal, Roger A.   +3 more
core   +1 more source

Resource redeployment as an entry advantage in resource‐poor settings

Strategic Management Journal, EarlyView.
Abstract Research Summary Scarcity of productive factors poses a challenge for firms entering underdeveloped regions. We theorize that incumbent firms can overcome scarcity of skilled human capital in local labor markets by redeploying workers from existing units.
Jasmina Chauvin, Carlos Inoue, Christopher Poliquin   +2 more
wiley   +1 more source