Results 31 to 40 of about 1,458,190 (338)
Scientific Reports, 2017 The association of irregular sleep schedules with circadian timing and academic performance has not been systematically examined. We studied 61 undergraduates for 30 days using sleep diaries, and quantified sleep regularity using a novel metric, the ...
A. Phillips +8 more
semanticscholar +1 more source
Frontiers in Neurology, 2011 Sleep and circadian activity rhythms become irregular with age which are characterized by fragmented sleep during the night and increased daytime sleepiness.
Kris eSingletary, Nirinjini eNaidoo
doaj +1 more source
The interaction between the Moon and the solar wind [PDF]
, 2011 We study the interaction between the Moon and the solar wind using a three-dimensional hybrid plasma solver. The proton fluxes and electromagnetical fields are presented for typical solar wind conditions with different magnetic field directions.
Fatemi, S. +3 more
core +2 more sources
Journal of Clinical Sleep Medicine (JCSM), 2018 The purpose of this guideline is to establish clinical practice recommendations for the use of actigraphy in adult and pediatric patients with suspected or diagnosed sleep disorders or circadian rhythm sleep-wake disorders.
Michael T. Smith +6 more
semanticscholar +1 more source
An alternative form of the super-Gaussian wind turbine wake model
Wind Energy Science, 2020 . A new analytical wind turbine wake model, based on a super-Gaussian shape function, is presented. The super-Gaussian function evolves from a nearly top-hat shape in the near wake to a Gaussian shape in the far wake, which is consistent with ...
F. Blondel, M. Cathelain
semanticscholar +1 more source
The helix approach: using dynamic individual pitch control to enhance wake mixing in wind farms [PDF]
Wind Energy, 2019 Wind farm control using dynamic concepts is a research topic that is receiving an increasing amount of interest. The main concept of this approach is that dynamic variations of the wind turbine control settings lead to higher wake turbulence, and ...
J. Frederik +3 more
semanticscholar +1 more source
Fluidic force and wake velocity of 3D body with four limbs in uniform flow
Journal of Fluid Science and Technology, 2023 Robots that operate at a disaster site have been proposed and the dispatch of rescue robots to such site is required. However, discussion on the transport of these robots is insufficient.
Shunsuke YAMADA, Teppei TSUJITA
doaj +1 more source
Continued results from a field campaign of wake steering applied at a commercial wind farm – Part 2
Wind Energy Science, 2020 . This paper presents the results of a field campaign investigating the performance of wake steering applied at a section of a commercial wind farm. It is the second phase of the study for which the first phase was reported in Fleming et al. (2019).
P. Fleming +17 more
semanticscholar +1 more source
Wake flow visualization of a dandelion pappus with posture change
Journal of Fluid Science and Technology, 2023 A typical plant that is distributed by wind is the dandelion, which possesses a complex hairy pappus that aids in flying. A pappus or group of bristly filaments found in plumed seeds is believed to have a role in drag enhancement. The pappus prolongs the
Yuki SHIGENAGA, Hiroaki HASEGAWA
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2014 In order to clarify unsteady flow structure’s behavior that improves vehicle’s high-speed stability during steering input, on-road analysis was conducted.
Yoshihiro OKADA +3 more
doaj +1 more source