نتایج جستجو برای: blockage of flow

تعداد نتایج: 21214026  

Journal: :Journal of neurology, neurosurgery, and psychiatry 2004
H S Chang H Nakagawa

OBJECTIVE To apply a theoretical model to analyse the derangement of cerebrospinal fluid (CSF) dynamics in syringomyelia associated with adhesive arachnoiditis. METHODS An electrical circuit model of CSF dynamics in the spine was used. With this model, the derangement of CSF dynamics in adhesive arachnoiditis was simulated. The effects of various surgical procedures were then analysed, such a...

Journal: :Energies 2023

In the material transfer area, belt is exposed to considerable damage, energy of falling lost, and there significant dust noise. One most common causes failure chute blockage, when flow in free fall or loading zone disturbed by oversized rock parts other objects, e.g., bolts. The a single point may cause entire transport route be excluded from work associated with costly breakdowns. For this re...

Objective(s): P2X4R is expressed in immunocyte and lung tissues. It has been a focus in inflammatory responses recently. This study investigated whether blockage of P2X4R attenuates allergic inflammation by modulating T cell response in ovalbumin-sensitized mice. Materials and Methods: Ovalbumin was used to sensitize and challenge for a mouse model. Intranasal application of 5-BDBD, P2X4R antag...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
J Patrick Shelby John White Karthikeyan Ganesan Pradipsinh K Rathod Daniel T Chiu

Severe malaria by Plasmodium falciparum is a potentially fatal disease, frequently unresponsive to even the most aggressive treatments. Host organ failure is associated with acquired rigidity of infected red blood cells and capillary blockage. In vitro techniques have played an important role in modeling cell deformability. Although, historically they have either been applied to bulk cell popul...

2009
Juntao Xiong Feng Liu Dimitri Papamoschou

This paper studies the impact of installing noise-suppressing deflector vanes in the bypass flow on the aerodynamic performance of the dual-stream supersonic nozzle of a turbofan engine by using a three-dimensional Reynolds-averaged Navier-Stokes computer program. A series of nozzle configurations using a single pair or double pairs of vanes with NACA0012, NACA4412, and NACA7514 airfoil profile...

2014
Yingdong Liu Wuhong Wang

A one-dimensional cellular automaton traffic flow model, which considers the deceleration in advance, is addressed in this paper. The model reflects the situation in the real traffic that drivers usually adjust the current velocity by forecasting its velocities in a short time of future, in order to avoid the sharp deceleration. The fundamental diagram obtained by simulation shows the ability o...

2006
Nozomi Nishimura Chris B Schaffer Beth Friedman Philbert S Tsai Patrick D Lyden David Kleinfeld

We present a method to produce vascular disruptions within rat brain parenchyma that targets single microvessels. We used two-photon microscopy to image vascular architecture, to select a vessel for injury and to measure blood-flow dynamics. We irradiated the vessel with high-fluence, ultrashort laser pulses and achieved three forms of vascular insult. (i) Vessel rupture was induced at the high...

2015

Coronary artery disease (CAD) is considered as the leading cause of death in the developed world and is a result of plaque buildup (Atherosclerosis) in the coronary arteries, which interrupts blood flow. Atherosclerotic plaque develops silently over a prolonged period of time, through a highly complicated inflammatory process that includes many factors, molecules and reactions. Although atheros...

Journal: :Water 2022

Geothermal energy is a clean and environmentally friendly source that can be used sustainably; however, attention towards geothermal has been intermittent during the last 40 years as function of crisis oil price. However, reinjection clogging challenge limiting development utilization. In China, widely distributed sandstone reservoirs have reduced production due to technical constraints such ex...

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