نتایج جستجو برای: permeability tensor

تعداد نتایج: 93176  

2009
E. A. Ashton R. Iyer

Introduction: Both diffusion tensor and diffusion weighted MRI have been used extensively in the evaluation of neurological disorders including stroke, Alzheimer’s disease, and multiple sclerosis [1 – 3]. More recently, interest has grown in the use of diffusion MRI to evaluate and predict response to therapy in various cancers [4 – 6]. Diffusion tensor imaging, which is most useful in the brai...

2011
Rajveer S Yaduvanshi Harish Parthasarathy

We studied the temporal evolution of the electromagnetic and velocity fields in an incompressible conducting fluid by means of computer simulations from the Navier Stokes and Maxwell’s equations. We then derived the set of coupled partial differential equations for the stream function vector field and the electromagnetic field. These equations are first order difference equations in time and fe...

Journal: :J. Applied Mathematics 2013
Pei-tao Wang Tian-hong Yang Tao Xu Qing-lei Yu Hong-lei Liu

Joints often have important effects on seepage and elastic properties of jointed rock mass and therefore on the rock slope stability. In the present paper, a model for discrete jointed network is established using contact-freemeasurement technique and geometrical statistic method. A coupled mathematical model for characterizing anisotropic permeability tensor and stress tensor was presented and...

Abstract: This paper presents the results of experimental determination of fiber bed permeability variation with porosity. Flow measurement experiments were designed to measure fiber mat permeability for fiber beds with various fiber volume fractions. Woven fiberglass, chopped fiberglass, and carbon fiber mats were used as reinforcements. The effects of reinforcement type and porosity on fiber ...

2017
Qu Jin Yu Cai Sihan Li Haoran Liu Xingyu Zhou Chunqiang Lu Xihui Gao Jun Qian Jun Zhang Shenghong Ju Cong Li

Thrombolysis has been a standard treatment for ischemic stroke. However, only 2-7% patients benefit from it because the thrombolytic agent has to be injected within 4.5 h after the onset of symptoms to avoid the increasing risk of intracerebral hemorrhage. As the only clinically approved neuroprotective drug, edaravone (EDV) rescues ischemic brain tissues by eradicating over-produced reactive o...

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