نتایج جستجو برای: Circulatory system model

تعداد نتایج: 3861614  

Journal: :international journal of electrical and electronics engineering 0
e. rouhanii s. gharibzadehii a. abootalebiiii a .karimianiv f. khalili esfahaniv

in this study a new minimum lumped electrical model of total circulatory system through numerical solutions to approximate the response of the human circulatory system was presented. among five existent ventricular elastances as activity function of heart pumps, a more accurate model was chosen as well as the operation of baroreflex system to accommodate variations in heart rate and systemic va...

A .Karimianiv A. Abootalebiiii E. Rouhanii F. Khalili Esfahaniv S. Gharibzadehii

In this study a new minimum lumped electrical model of total circulatory system through numerical solutions to approximate the response of the human circulatory system was presented. Among five existent ventricular elastances as activity function of heart pumps, a more accurate model was chosen as well as the operation of baroreflex system to accommodate variations in heart rate and systemic va...

Journal: :journal of biomedical physics and engineering 0
m abdi school of mechanical engineering, iran university of science and technology, tehran, iran 2tissue engineering and biolog m navidbakhsh school of mechanical engineering, iran university of science and technology, tehran, iran 2tissue engineering and biologسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) a razmkon department of neurosurgery, shiraz university of medical sciences, shiraz, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)

1024x768 normal 0 false false false en-us x-none ar-sa background and objective: numerical modeling of biological structures would be very helpful tool to analyze hundreds of human body phenomena and also diseases diagnosis. one physiologic phenomenon is blood circulatory system and heart hemodynamic performance that can be simulated by utilizing lumped method. in this study, we can predict hem...

A Razmkon, M Abdi, M Navidbakhsh

Background and Objective: Numerical modeling of biological structures would be very helpful tool to analyze hundreds of human body phenomena and also diseases diagnosis. One physiologic phenomenon is blood circulatory system and heart hemodynamic performance that can be simulated by utilizing lumped method. In this study, we can predict hemodynamic behavior of one artery of circulatory system (...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم 1391

in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1392

due to lack of knowledge management system in the organization of technical and vocational university of iran (tvuni) and losing good employees because of retirement and substitution causes huge amount of costs to replace the similar expertise. there is no any suitable system in the tvuni to store, to document, and to distribute knowledge. based on the university’s features such as it has diffe...

Journal: :The Physiologist 1967
M N Levy H Zieske

The model to be described is a “closed” system, comprised of four principal components : a pump, an arterial capacitance, a peripheral resistance, and a venous capacitance. The pump is servo-controlled, such that “cardiac output” is a function of venous pressure (FrankStarling mechanism). Also, because the model is a closed system, the venous pressure is a function of the cardiac output. The mo...

Journal: :IEEJ Transactions on Electronics, Information and Systems 1990

Journal: :journal of biomedical physics and engineering 0
h doostdar msc in biomedical engineering ma khalilzadeh assistant professor in biomedical engineering

background: with increasing age, some changes appeared in specifications of vessels which including dimensions and elasticity in their. the changes in parameters such as resistance, inertance and compliance vessels appear and eventually changes in the environmental pulse releases are in circulation. these changes clearly appear in specification of photoplethysmogram particularly in the size and...

Background: With increasing age, some changes appeared in specifications of vessels which including dimensions and elasticity in their. The changes in parameters such as resistance, inertance and compliance vessels appear and eventually changes in the environmental pulse releases are in circulation. These changes clearly appear in specification of photoplethysmogram particularly in the size and...

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