نتایج جستجو برای: arterial dynamic model

تعداد نتایج: 2510961  

Journal: :American journal of physiology. Heart and circulatory physiology 1999
Mette S Olufsen

A central problem in modeling blood flow and pressure in the larger systemic arteries is determining a physiologically based boundary condition so that the arterial tree can be truncated after a few generations. We have used a structured tree attached to the terminal branches of the truncated arterial tree in which the root impedance is estimated using a semianalytical approach based on a linea...

2002
Chacon Nuñez

Introduction The dynamic relationship between arterial blood pressure (ABP) and cerebral blood flow velocity (CBFV) has been used as an expression of the autoregulatory capacity of the cerebral circulation. Linear frequencyand time-domain techniques have been applied to model this relationship, but non-linear approaches remain relatively unexplored. We hypothesize that a recurrent neural networ...

Journal: :The Journal of Japan Atherosclerosis Society 1982

Journal: :advances in railway engineering,an international journal 2015
seyed saeed fazel mojtaba khorshidi mehdi niakinezhad

although, single-sided linear induction motor (slim) utilization has increased in railway applications due to their numerous advantages in comparison to rotational induction motors (rim), there are some sophistication in their mathematical models and electrical drive. this paper focuses on the problems of slim modeling, with assuming end-effect on the basis of field oriented control (foc) as a ...

Journal: :Advances in Materials Science and Engineering 2021

The objective of this work is to prevent damage the arterial wall, using a theoretical model hyperelastic, anisotropic, and dynamic behavior human arterial. This mainly focused on properties hydrostatic stress evolution stenosis. stenosis in order understand effect size plaque deposit, loss elasticity increase density blood mechanical wall. great contribution shows us that increasing also incre...

Today, neuroscientists are interested in discovering human brain functions through brain networks. In this regard, the evaluation of dynamic changes in functional connectivity of the brain regions by using functional magnetic resonance imaging data has attracted their attention. In this paper, we focus on two model-based approaches, called the exponential weighted moving average model and the d...

Journal: :veterinary research forum 2012
siavash ahmadi-noorbakhsh saeed azizi bahram dalir-naghadeh masoud maham

oxygen is an essential part of the most important metabolic pathways in aerobic organisms. oxygen delivery is merely dependent on blood, rendering blood loss a devastating event. traumatic pre-hospital liver bleeding is a major cause of early trauma deaths in human and animals, with no established therapeutic method yet. increasing intra-abdominal pressure (iap) has been shown to reduce liver b...

Journal: :iranian journal of management studies 2011
ali jazayeri narjes jazayeri

this paper studies the dynamic behavior of price elasticity and its effects on the overall profit. although price elasticity has a significant effect on sales, its dynamics have not been examined so far in pricing models. in this paper, a simple pricing model is suggested in which, price elasticity is considered dynamic. the suggested pricing model is concerned with a monopolist that its object...

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