نتایج جستجو برای: stenosis shape parameter

تعداد نتایج: 460864  

2016
Tarak Agrebi Moumni Chouari Karim El-Shakankery

1. Ebrahimi A, Shams A. Severe iatrogenic nostril stenosis. Indian J Plast Surg 2015;48:305-8. 2. Wolfe SA, Podda S, Mejia M. Correction of nostril stenosis and alteration of nostril shape with an orthonostric device. Plast Reconstr Surg 2008;121:1974-7. 3. Sekine K, Matsune S, Shiiba K, Kimura M, Okubo K, Kaneshiro T, et al. Treatment of nostril and nasal stenosis due to facial burn using a se...

Journal: :Heart 2002
D Saito T Oka A Kajiyama N Ohnishi T Shiraki

OBJECTIVE To investigate factors predicting the development of outward remodelling of the carotid artery in patients with atherosclerosis. DESIGN 130 patients with carotid artery stenosis (15-85% of the vessel diameter) were divided into two groups, based on the presence or absence of outward remodelling of the sclerotic carotid segment on high resolution ultrasonography. Logistic regression ...

In this paper, the finite element analysis of two-dimensional linear viscoelastic problems is performed using quadrilateral complex Fourier elements and, the results are compared with those obtained by quadrilateral classic Lagrange elements. Complex Fourier shape functions contain a shape parameter which is a constant unknown parameter adopted to enhance approximation’s accuracy. Since the iso...

Journal: :journal of optimization in industrial engineering 2015
mohammad saber fallah nezhad batul rasti

in this paper, a bayesian approach is proposed for shift point detection in an inverse gaussian distribution. in this study, the mean parameter of inverse gaussian distribution is assumed to be constant and shift points in shape parameter is considered. first the posterior distribution of shape parameter is obtained. then the bayes estimators are derived under a class of priors and using variou...

Journal: :Comput. Graph. Forum 2015
Paul Guerrero Thomas Auzinger Michael Wimmer Stefan Jeschke

In this paper, we present a method for non-rigid, partial shape matching in vector graphics. Given a user-specified query region in a 2D shape, similar regions are found, even if they are non-linearly distorted. Furthermore, a non-linear mapping is established between the query regions and these matches, which allows the automatic transfer of editing operations such as texturing. This is achiev...

Journal: :اکو هیدرولوژی 0
مقدسه فلاح کارشناس ارشد آبخیزداری، دانشگاه علوم کشاورزی و منابع طبیعی ساری مازیار محمدی کارشناس ارشد آبخیزداری، دانشگاه علوم کشاورزی و منابع طبیعی ساری عطااله کاویان . دانشیار،گروه مهندسی آبخیزداری، دانشکدۀ منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری

prioritization of sub-watersheds is very important in the natural sources and watershed management. in this study, the morphometric parameter and landuse changes using rs and gis techniques used in order to identify erosion-prone sub-watersheds. the morphometric parameter such as basin relief, the linear parameters (drainage density, bifurcation ratio, length of overland flow, stream frequency ...

2010
V. P. Srivastava Shailesh Mishra

The effects of an overlapping stenosis on blood flow characteristics in a narrow artery have been investigated. To account for the non-Newtonian behavior, blood has been represented by a Casson fluid. The equation describing the flow has been solved and the expressions for the flow characteristics, namely, the impedance, the wall shear stress, the shear stress at the stenosis throats and the sh...

2013
HUI QU JINLI LI XINGQUAN ZHAO KEHUI DONG

The aim of this study was to investigate the factors affecting pre- and post-stenting head computed tomography perfusion (CTP) in patients with middle cerebral artery stenosis. A total of 25 patients with severe middle cerebral artery stenosis were enrolled. CTP was performed prior to and following stenting. Scores were allocated to the time-to-peak (TTP) parameter of CTP using the Alberta stro...

Journal: :The Annals of thoracic surgery 2012
Andres Ceballos I Ricardo Argueta-Morales Eduardo Divo Ruben Osorio Christopher A Caldarone Alain J Kassab William M Decampli

BACKGROUND The hemodynamics characteristics of the hybrid Norwood (HN) procedure differ from those of the conventional Norwood and are not fully understood. We present a multiscale model of HN circulation to understand local hemodynamics and effects of aortic arch stenosis and a reverse Blalock-Taussig shunt (RBTS) on coronary and carotid perfusion. METHODS Four 3-dimensional models of four H...

2012
Bimal Kumar Mishra Nidhi Verma

An attempt has been made to investigate the wall shear stress, resistance parameter and flow rate across mild stenosis situated symmetrically on steady blood flow through blood vessels with uniform or non-uniform cross-section by assuming the blood to be Non-Newtonian, incompressible and homogeneous fluid. An analytic solution for Power law Fluid, Bingham Plastic fluid, Casson Fluid has been ob...

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