Results 41 to 50 of about 1,254,050 (194)
Numerical studies on wake and turbulence characteristics of aquaculture nets
Frontiers in Marine Science, 2022 This paper aims to understand the drag coefficient discrepancy between the equivalent-twine and twisted-twine nets based on their wake and turbulence characteristics. To that end, we conduct unsteady Reynolds-averaged Navier-Stokes (URANS) and the second-
Lingyun Xu +6 more
doaj +1 more source
A comparison of bearing life in new and refurbished railway axle boxes [PDF]
, 2001 A simple linear dynamical model shows that at normal running speeds of freight wagons, forced oscillations due to periodic track compliance are transferred to the overlying unsprung mass and significantly amplified. Due to these oscillations, a small gap
Broadbridge, P., Wake, G.
core
Improving practical sensitivity of energy optimized wake-up receivers: proof of concept in 65nm CMOS
, 2016 We present a high performance low-power digital base-band architecture, specially designed for an energy optimized duty-cycled wake-up receiver scheme. Based on a careful wake-up beacon design, a structured wake-up beacon detection technique leads to an ...
Andersson, Oskar +4 more
core +1 more source
Experiments on the forced wake of an airfoil [PDF]
, 1989 The effect of initial flow conditions on the wake of an airfoil is examined in an experiment which uses the ‘strip heater’ technique to externally force the airfoil wake.
Gharib, M., Williams-Stuber, K.
core +1 more source
Daily Fluctuation of Orexin Neuron Activity and Wiring: The Challenge of “Chronoconnectivity”
Frontiers in Pharmacology, 2018 In the heterogeneous hub represented by the lateral hypothalamus, neurons containing the orexin/hypocretin peptides play a key role in vigilance state transitions and wakefulness stability, energy homeostasis, and other functions relevant for motivated ...
Idris A. Azeez +4 more
doaj +1 more source
Revista Facultad de Ingeniería Universidad de Antioquia, 2019 Algunas técnicas sofisticadas de ahorro de energía se han venido empleando para lograr eficiencia energética en Redes Inalámbricas de Sensores (WSNs), tales como los protocolos de bajo ciclo de trabajo enmarcados en una arquitectura de único radio. Estos
Juan Aranda +3 more
doaj +1 more source
Applied Sciences, 2022 The wake of a wind turbine has an important influence on the output power of wind farms. Staggered height layout is an emerging method for the layout optimization of wind farms.
Wenxin Tian +7 more
doaj +1 more source
IEEE Access, 2021 In this paper, the effects of rotor-rotor interaction on the wake structure and thrust generation of a quadrotor unmanned aerial vehicle (UAV) are experimentally investigated in the rotor tip Reynolds number range of 34000 – 54000. The interaction
Seungcheol Lee +4 more
doaj +1 more source
Kelvin-Mach wake in a two-dimensional Fermi sea [PDF]
, 2018 The dispersion law for plasma oscillations in a two-dimensional electron gas in the hydrodynamic approximation interpolates between $\Omega \propto \sqrt{q}$ and $\Omega \propto q$ dependences as the wave vector $q$ increases.
Kolomeisky, Eugene B. +1 more
core +3 more sources
Dynamics of Sleep-Wake Transitions During Sleep
, 2002 We study the dynamics of the awakening during the night for healthy subjects and find that the wake and the sleep periods exhibit completely different behavior: the durations of wake periods are characterized by a scale-free power-law distribution, while
Ben-Avraham D. +25 more
core +5 more sources