Results 41 to 50 of about 260,398 (191)

A computational assessment of the aerodynamic performance of a tilted Darrieus wind turbine [PDF]

open access: yes, 2015
The aerodynamic performance of a Darrieus wind turbine operating with the rotation axis tilted with respect to the free-stream wind speed is investigated in this paper. An Unsteady Reynolds Averaged Navier Stokes (URANS) Computational Fluid Dynamics (CFD)
Bedon, Gabriele   +2 more
core   +1 more source

Periosteal pressure sensitivity of the chest bone as a measure for autonomic function in ischemic heart disease

open access: yesFrontiers in Neuroscience
PurposeIn 177 patients with ischemic heart disease and elevated periosteal pain sensitivity of the chest bone indicative of autonomic nervous system dysfunction, we test the hypotheses, (i) there is an association between the tilt table responses for the
Nanna Ørsted   +6 more
doaj   +1 more source

A study into the earthquake resistance of circular adobe buildings [PDF]

open access: yes, 2012
University Technology of Sydney. Faculty of Design Architecture and Building.Unreinforced adobe or mud-brick structures have in the past suffered severe damage from seismic forces and have caused a vast number of deaths.
Jinwuth, W
core  

Hemodynamic Response to the Head-Up Tilt Test in Patients With Syncope as a Predictor of the Test Outcome: A Meta-Analysis Approach

open access: yesFrontiers in Physiology, 2019
Aim: The paper presents a meta-analysis of studies comparing hemodynamic parameters: heart rate (HR), systolic blood pressure (sBP), diastolic blood pressure (dBP), and stroke volume (SV) measured during head-up tilt table test (HUTT) in patients with ...
Katarzyna Buszko   +3 more
doaj   +1 more source

The Deformable Mirror Demonstration Mission (DeMi) CubeSat: optomechanical design validation and laboratory calibration

open access: yes, 2018
Coronagraphs on future space telescopes will require precise wavefront correction to detect Earth-like exoplanets near their host stars. High-actuator count microelectromechanical system (MEMS) deformable mirrors provide wavefront control with low size ...
Allan, Gregory   +11 more
core   +1 more source

Effect of grain disorientation on early fatigue crack propagation in face-centred-cubic polycristals: A three-dimensional dislocation dynamics investigation [PDF]

open access: yes, 2013
Three-dimensional dislocation dynamics simulations are used to study micro-crack interaction with the first micro-structural barrier in face-centred cubic bi-crystals loaded in high cycle fatigue conditions. In the examined configuration, we assumed that
depres, christophe   +3 more
core   +5 more sources

Relationship between the mean platelet volume values and tilt-table test results in patients with vasovagal syncope

open access: yesMedicine Science, 2018
Impaired sympathovagal balance, the main pathophysiological mechanism under the vasovagal syncope (VVS), may play a role on platelet sizes. Although it has been shown that mean platelet volume (MPV) is increased in patients with vasovagal syncope, its ...
Yalcin Gokoglan, Erkan Yildirim
doaj   +1 more source

Measurement and Compensation of Horizontal Crabbing at the Cornell Electron Storage Ring Test Accelerator

open access: yes, 2014
In storage rings, horizontal dispersion in the rf cavities introduces horizontal-longitudinal (xz) coupling, contributing to beam tilt in the xz plane. This coupling can be characterized by a "crabbing" dispersion term {\zeta}a that appears in the normal
Chatterjee, A.   +9 more
core   +2 more sources

Usefulness of Tilt Testing in Children with Syncope: A Survey of Pediatric Electrophysiologists

open access: yesIndian Pacing and Electrophysiology Journal, 2008
The role of tilt table testing as a diagnostic modality in children with unexplained syncope is unclear. We sent a questionnaire to members of the Pediatric and Congenital Electrophysiology Society to assess the current practice pattern.
Anjan S. Batra, Seshadri Balaji
doaj  

SAOLIM, a prototype of a low cost System for Adaptive Optics with Lucky Imaging

open access: yes, 2010
A prototype of a low cost Adaptive Optics (AO) system has been developed at the Instituto de Astrofisica de Andalucia (CSIC) and tested at the 2.2m telescope of the Calar Alto observatory.
Aceituno, F. J.   +3 more
core   +1 more source

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