نتایج جستجو برای: diffuse conduit flow system
تعداد نتایج: 2675934 فیلتر نتایج به سال:
The inaccuracy of measuring human bronchial artery blood flow has previously been considerable. En bloc double-lung transplantation with bronchial artery revascularization (BAR) using a single conduit offers the unique opportunity of direct measurement of the total bronchial artery blood flow. In eight en bloc double-lung-transplanted patients with complete BAR, the basal blood flow was measure...
background: considering the common origin of skin and peripheral nervous system, a tube of dermal layer of skin hypothetically can be an ideal conduit for nerve reconstruction. an experimental study performed to evaluate the nerve regeneration of efficacy into a dermal tube. methods: sixty male wistar rats were used. a 10 mm gap was produced in right sciatic nerves. in group a the autogenous ne...
Background Many high-risk patients with severe aortic stenosis cannot undergo valve replacement surgery due to calcification of the ascending aorta. Aortic valve bypass (AVB) surgery uses a conduit and prosthetic valve placed transapically into the left ventricle to divert flow from the apex of the heart through the conduit and prosthetic valve to the descending thoracic aorta to improve cardia...
BACKGROUND The objective of our research was to use a noninvasive tomographic imaging technique with high spatial resolution (2-15 microm) to characterize and monitor fluid flow and the microvasculature in highly scattering biological tissues at user-specified discrete locations. METHODS The technique of optical Doppler tomography (ODT) combines laser Doppler flowmetry (LDF) with optical cohe...
Introduction: Radiation associated with Io’s Pele-type volcanic plumes is studied numerically. Infrared (IR) radiation from three SO vibrational bands ( , and ) in the plume has been examined previously [1] using an optically thin gas model within DSMC [2]. In the present work, the model is improved such that opacity at the band centers is accounted for; it is found that the plume gas dynamics ...
In a murine model of moderate childhood malnutrition we found that polynutrient deficiency led to a 4-5-fold increase in early visceralization of L. donovani (3 days post-infection) following cutaneous infection and a 16-fold decrease in lymph node barrier function (p<0.04 for all). To begin to understand the mechanistic basis for this malnutrition-related parasite dissemination we analyzed the...
Lattice Boltzmann Methods (LBMs) are relatively new and have not yet been widely applied to ground-water systems. LBMs are particularly attractive for numerical modeling of flow and solute transport in karst aquifers because they are able to: • Simulate inertial flows • Incorporate complex wall and conduit geometries • Solve adjacent Darcian and Navier-Stokes flow regimes • Solve the appropriat...
Fontan palliation has been used as the final stage in functionally univentricular palpation for several years. The Fontan has undergone several iterations, having begun as an atriopulmonary connection and then evolving into the extracardiac conduit. Innovations in computer modeling and flow simulation has now allowed for studies to be conducted to characterize flow within the Fontan conduit and...
MRI images of pulmonary blood flow using arterial spin labeling (ASL) measure the delivery of magnetically tagged blood to an image plane during one systolic ejection period. However, the method potentially suffers from two problems, each of which may depend on the imaging plane location: 1) the inversion plane is thicker than the imaging plane, resulting in a gap that blood must cross to be de...
The benefit of intrathecal therapy and systemic rituximab on the outcome of diffuse large B-cell lymphoma at risk of central nervous system disease is controversial. Furthermore, the effect of intrathecal treatment and rituximab in diffuse large B-cell and Burkitt lymphoma with occult leptomeningeal disease detected by flow cytometry at diagnosis is unknown. Untreated diffuse large B-cell (n=24...
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