Results 141 to 150 of about 151,224 (313)
Energy Science &Engineering, EarlyView.Using density functional theory (CASTEP, GGA–PBE), the structural, electronic, optical, and mechanical properties of YSeO₃X (X = F, Cl, Br, and I) compounds are systematically investigated. The materials have exhibited structural stability, tunable band gaps, strong optical absorption, anisotropic ductile behavior, and promising potential for ...
Nawishta Jabeen +5 more
wiley +1 more source
Space shuttle: Low speed stability and control characteristics of the North American Rockwell delta wing orbiter -134D and -134C configurations [PDF]
Longitudinal, lateral, and directional static stability and control characteristics of delta wing space shuttle orbiter models 134D and 134C at Mach 0 ...
Lester, W., Sokolsky, O.
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Energy Science &Engineering, EarlyView.This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi +5 more
wiley +1 more source
Spontaneous regression of equine sarcoids is an exceptional event
Equine Veterinary Journal, EarlyView.Abstract Sarcoids are benign, yet locally aggressive skin tumours that commonly affect horses and other equid species. The lesions are induced by bovine papillomavirus types 1, 2, and probably 13 in conjunction with other factors including trauma and a genetic predisposition.
Sabine Brandt
wiley +1 more source
An overview of the fundamental aerodynamics branch's research activities in wing leading-edge vortex flows at supersonic speeds [PDF]
For the past 3 years, a research program pertaining to the study of wing leading edge vortices at supersonic speeds has been conducted in the Fundamental Aerodynamics Branch of the High-Speed Aerodynamics Division at the Langley Research Center.
Covell, P. F. +2 more
core +1 more source
Health Economics, EarlyView.ABSTRACT Evidence on the relationship between public health expenditure and health is mixed and particularly scarce for low‐income countries. Existing studies overlook the subnational distribution of expenditure and rarely distinguish between sources and governance over funding.
Eliana Chavarría‐Pino +3 more
wiley +1 more source
Aerodynamic characteristics of a hypersonic research airplane concept having a 70 deg swept double-delta wing at Mach number 0.2 [PDF]
A wind-tunnel of the static longitudinal, lateral and directional stability characteristics of a hypersonic research airplane concept having a 70 deg swept double-delta wing was conducted in the Langley low-turbulence pressure tunnel.
Creel, T. R., Jr. +2 more
core +1 more source
Journal of Applied Econometrics, EarlyView.ABSTRACT The synthetic control method assumes the existence of a perfect synthetic control, which cannot exist if the outcomes are functions of transitory shocks with nonzero asymptotic variance and may not exist even in expectation for the treated unit. This paper first shows the benefits of estimating synthetic controls for all units.
David Powell
wiley +1 more source
An experimental study of pressures on 60 deg Delta wings with leading edge vortex flaps [PDF]
An experimental study was conducted in the Virginia Tech Stability Wind Tunnel to determine surface pressures over a 60 deg sweep delta wing with three vortex flap designs.
Donatelli, D. A. +2 more
core +1 more source
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.ABSTRACT The ability of organisms to effectively respond to challenges is critical for survival. We investigated how an acute stressor affected corticosterone, mitochondrial function, and DNA oxidative damage in a wild population of Leach's storm‐petrels (Hydrobates leucorhous).
Kayla E. Lichtner +10 more
wiley +1 more source