Results 51 to 60 of about 286,354 (307)

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

open access: yesAdvanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy   +13 more
wiley   +1 more source

Tidal circulation in Andaman Sea [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2005
The comprehensive understanding of tidal circulation in the Andaman Sea plays an essential role in search and rescue programs. The accurate prediction of water particle trajectories under influence of the tidal force will speed up searching for a ...
Pornpinatepong, S.
doaj  

A Robust Measure of Tidal Circularization in Coeval Binary Populations: The solar-type spectroscopic Binary Population in The Open Cluster M35

open access: yes, 2004
We present a new homogeneous sample of 32 spectroscopic binary orbits in the young (~ 150 Myr) main-sequence open cluster M35. The distribution of orbital eccentricity vs.
Claret A.   +23 more
core   +2 more sources

Edible and Recyclable Gelatin‐Based Electronics for High‐Precision Health and Environmental Monitoring

open access: yesAdvanced Science, EarlyView.
An edible and recyclable composite film composed of gelatin and activated charcoal is presented for multifunctional health and environmental monitoring. The edible films exhibit tuneable mechanical and electrical properties, along with multimodal sensing capabilities for strain, humidity, and temperature. The composite film is degradable and recyclable,
Ming Dong   +6 more
wiley   +1 more source

Monitoring of the water particle velocity field near the seabed under different wave and tidal scenarios: a real case [PDF]

open access: yes, 2015
Monitoring of water particle velocity on the sea bed is crucial to study morphological shore changes in a coast at intermediate and shallow water depth under progressive surface waves and tidal flow current. Therefore, 3-D particle velocity was monitored
Khan-Mozahedy, A.B.M.   +2 more
core   +1 more source

Tidal dissipation and the formation of Kepler near-resonant planets [PDF]

open access: yes, 2014
Multi-planetary systems detected by the Kepler mission present an excess of planets close to first-order mean-motion resonances (2:1 and 3:2) but with a period ratio slightly higher than the resonant value.
Delisle, J. -B., Laskar, J.
core   +1 more source

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

open access: yesAdvanced Science, EarlyView.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır   +4 more
wiley   +1 more source

Tidal stream generators, current state and potential opportunities for condition monitoring [PDF]

open access: yes, 2016
Tidal power industry has made significant progress towards commercialization over the past decade. Significant investments from sector leaders, strong technical progress and positive media coverage have established the credibility of this specific ...
Avdelidis, Nicolas P.   +3 more
core  

Power Extraction Strategy of a Robust kW Range Marine Tidal Turbine Based on Permanent Magnet Synchronous Generators and Passive Rectifiers [PDF]

open access: yes, 2014
This paper presents a kW range marine tidal current power generation system consisting of a fixed pitch marine current turbine (MCT) with two permanent magnet synchronous generators in the turbine shaft, two diode rectifiers (each rectifier is associated
CHARPENTIER, Jean-Frederic   +2 more
core   +2 more sources

Tidal Current Energy Technologies [PDF]

open access: yesIbis, 2006
This paper sets the context for the development of tidal current technology in the face of impending climate change and so called ‘peak oil’. Siting requirements are specified for tidal turbines and a general overview of the different technologies under development is given.
openaire   +1 more source

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