Results 141 to 150 of about 29,026 (312)

A wave model of near wakes

open access: yesGeophysical Research Letters, 1975
A new model for the near‐wake studies is presented. It pertains to a tenuous plasma medium with negligible magnetic field effects. The wake‐generating body moves at a mesothermal speed (Vb) i.e. intermediate between the thermal speeds of ions and electrons of the ambient plasma which is bi‐thermal (Ti < Te) and has a Debye length (λD=(kTe/4πe²no)½ ...
openaire   +1 more source

Reinnervation of Muscle Targets Enhances the Separability of Motor Unit Signals Following Peripheral Nerve Transfers

open access: yesAdvanced Science, EarlyView.
Injured or cut peripheral nerves can be surgically rerouted to reinnervate new muscle targets. This study demonstrates reinnervated muscles exhibit enhanced separability between individual motor unit signals, which can simplify signal recording and decomposition. These findings highlight the potential of reinnervated muscle to serve as a key biological
Kiara N Quinn   +11 more
wiley   +1 more source

The effect of blade aerodynamic modelling on the prediction of high-frequency rotor airloads

open access: yes, 2009
Interactions between the blades and vortical structures within the wake of a helicopter rotor are a significant source of impulsive loading and noise, particularly in descending flight.
Kelly, Mary E.   +3 more
core  

Aeroacoustic analysis of main rotor and tail rotor interaction [PDF]

open access: yes, 2008
The increased restrictions placed on helicopter noise levels over recent decades have encouraged manufacturers to better understand tail rotor noise and its aerodynamic sources.
Fletcher, Timothy M.   +5 more
core  

Modeling the Lunar plasma wake

open access: yes, 2013
39th EPS Conference on Plasma Physics and 16th International Congress on Plasma Physics, S. Ratynskaya, L. Blomberg, A. Fasoli, eds., Europhysics Conference Abstracts, Vol.
Holmstrom, M., Eliasson, B.
openaire   +2 more sources

Synchronization‐Dissipation in the Cardiorespiratory System

open access: yesAdvanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border   +3 more
wiley   +1 more source

Prmt6 Deficiency or Inhibition Restores Microglial Homeostasis and Promotes Scar‐Limited Repair in Adult Spinal Cord Injury

open access: yesAdvanced Science, EarlyView.
After spinal cord injury, adult microglia remain persistently activated with chronic PRMT6 (protein arginine methyltransferase 6) upregulation. Prmt6 deficiency or inhibition reestablishes microglial homeostasis and promotes a scar‐limited repairment, enhancing axonal regrowth.
Weilin Peng   +9 more
wiley   +1 more source

Wireless, Adaptable and Fully Implantable Battery‐powered Devices for Optical Stimulation of the Spinal Cord in Small Rodents

open access: yesAdvanced Science, EarlyView.
Current technologies for spinal cord optogenetic stimulation rely on external power sources and face reliability constraints in freely behaving animals. Here, a fully implantable, battery‐powered optoelectronic device is introduced, enabling operation in any selected environment with wireless recharging for months‐long stimulation.
Shahriar Shalileh   +8 more
wiley   +1 more source

A High‐Throughput Live Imaging Platform to Investigate Circuit‐Dependent Regulation of Circadian Rhythms in Brain Tissue

open access: yesAdvanced Science, EarlyView.
Biological rhythms coordinate physiology, from genes to behavior. Study of circadian rhythms in brain tissue is constrained by limited throughput and spatial and temporal information quality. A new platform for high‐throughput, long‐term multiplexed fluorescent live imaging of circadian rhythms in brain slices is introduced.
Marco Ferrari   +3 more
wiley   +1 more source

Investigation of the Rotor Wake of Horizontal Axis Wind Turbine under Yawed Condition [PDF]

open access: yes, 2016
The wake and the lack of existing velocity behind the wind turbine affect the energy production and the mechanical integrity of wind turbines downstream in the wind farms.
R. Kerfah   +9 more
core  

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