Results 101 to 110 of about 3,714,854 (310)

Influence of Rotation Speed of Screw Pump on the Flow Field Characteristics of Oil-Water Cyclone Separation Pipe

open access: yesShiyou jixie
The cyclone separator would experience complex vibration under the action of downhole oil recovery screw pump,which has a certain impact on the internal flow field of the cyclone separator.
Zhao Lixin   +5 more
doaj  

Flow field analysis of turbojet combustion chamber [PDF]

open access: yesMATEC Web of Conferences, 2017
The paper presents some results regarding the identification of a turbojet engine’s optimal combustion chamber geometry, characterized by small dimensions, with enhanced possibilities for air and fuel mixture circulation in the primary combustion zone in order to obtain good residence time in the flame tube, higher turbulence and optimal radial ...
openaire   +2 more sources

A time-dependent approach to the numerical solution of the flow field about an axisymmetric vehicle at angle of attack Final report [PDF]

open access: yes
Three dimensional inviscid flow field analysis for axisymmetric configurations at angle of ...
Anderson, W. A., Xerikos, J.
core   +1 more source

Post‐COVID Fatigue Is Associated With Reduced Cortical Thickness After Hospitalization

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuropsychiatric symptoms are among the most prevalent sequelae of COVID‐19, particularly among hospitalized patients. Recent research has identified volumetric brain changes associated with COVID‐19. However, it currently remains poorly understood how brain changes relate to post‐COVID fatigue and cognitive deficits.
Tim J. Hartung   +190 more
wiley   +1 more source

A review of instability and noise propagation in supersonic flows [PDF]

open access: yes
Originally analytical and numerical models were to be developed for noise production in supersonic jets, wakes and free shear layers. While the effort was concentrated initially on these aspects, other topics were also pursued, most were of interest to ...
Daudpota, Q. Isa, Lakin, William D.
core   +1 more source

Association of Corticospinal Tract Asymmetry With Ambulatory Ability After Intracerebral Hemorrhage

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ambulatory ability after intracerebral hemorrhage (ICH) is important to patients. We tested whether asymmetry between ipsi‐ and contra‐lesional corticospinal tracts (CSTs) assessed by diffusion tensor imaging (DTI) is associated with post‐ICH ambulation.
Yasmin N. Aziz   +25 more
wiley   +1 more source

TRANSONIC COMPRESSOR INLET FLOW FIELD ANALYSIS

open access: yes, 2021
Achieving low stall speeds is desired for military aircraft to allow for improved flight performance. The purpose of this study was to accurately characterize the inlet flow field of a transonic compressor’s inlet and observe if there were any flow field improvements due to rig modifications.
openaire   +1 more source

100-kHz Rate Rayleigh Imaging for Combustion and Flow Diagnostics [PDF]

open access: yes
Two-dimensional (2D) Rayleigh scattering (RS) imaging at an ultrahigh repetition rate of 100 kHz is demonstrated in non-reacting and reacting flows employing a high-energy burst-mode laser system.
Danehy, Paul M.   +4 more
core   +1 more source

Perturbative and non-perturbative aspects of the proper time renormalization group

open access: yes, 2002
The renormalization group flow equation obtained by means of a proper time regulator is used to calculate the two loop beta function and anomalous dimension eta of the field for the O(N) symmetric scalar theory.
A. Bonanno   +42 more
core   +1 more source

Lessons Learned From a Delayed‐Start Trial of Modafinil for Freezing of Gait in Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Freezing of gait (FOG) in people with Parkinson's disease (PwPD) is debilitating and has limited treatments. Modafinil modulates beta/gamma band activity in the pedunculopontine nucleus (PPN), like PPN deep brain stimulation. We therefore tested the hypothesis that Modafinil would improve FOG in PwPD.
Tuhin Virmani   +8 more
wiley   +1 more source

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