A Mathematical Model for Human Thermoregulation PDF Download
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Author: Nicholas Carl Miller
Publisher:
ISBN:
Category : Body temperature
Languages : en
Pages : 236
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Book Description
Author: Nicholas Carl Miller
Publisher:
ISBN:
Category : Body temperature
Languages : en
Pages : 236
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Book Description
Author: Aldo Belleni-Morante
Publisher:
ISBN:
Category : Body temperature
Languages : en
Pages : 26
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Book Description
Author: EUGENE H. WISSLER
Publisher: Springer
ISBN: 9783662585962
Category :
Languages : en
Pages : 440
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Book Description
The principal objective of this book is to provide information needed to define human thermal behavior quantitatively. Human thermal physiology is defined using mathematical methods routinely employed by physicists and engineers, but seldom used by physiologists. Major sections of the book are devoted to blood flow, sweating, shivering, heat transfer within the body, and heat and mass transfer from skin and clothing to the environment. Simple algebraic models based on experimental data from a century of physiological investigation are developed for bodily processes. The book offers an invaluable source of information for physiologists and physical scientists interested in quantitative approaches to the fascinating field of human thermoregulation.
Author: Michael Breuss
Publisher:
ISBN:
Category :
Languages : en
Pages : 8
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Book Description
Mathematical models of blood flow are inevitably embedded in models of human thermoregulation because they take the role of the most significant heat distributor in models of the human thermal system 14, 6. Models of human thermoregulation have a wide range of applications, e.g. for the prediction of the impact of accidents, diseases and clinical treatments (see 14 and the references therein). The application of our interest is the prediction of the influence of cooling on the heat distribution in premature infants, see Section 2. In Section 3 we discuss the requirements of a reliable thermoregulation model while the governing equation is described in paragraph four. The employed blood flow model is discussed within Section 5. Section 6 deals with numerical results, followed by concluding remarks in the last paragraph.
Author: J. A. J. Stolwijk
Publisher:
ISBN:
Category : Body temperature
Languages : en
Pages : 92
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Book Description
Author: Eda Didem Yıldırım
Publisher:
ISBN:
Category : Body temperature
Languages : en
Pages : 374
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Book Description
Mathematical model of the human thermal system, which has been greatly developed in recent years, has applications in many areas. It is used to evaluate the environmental conditions in buildings, in car industry, in textile industries, in the aerospace industry, in meteorology, in medicine, and in military applications. In these disciplines, the model can serve for research into human performance, thermal acceptability and temperature sensation, safety limits. Present study investigates the mathematical modeling of the passive part of the human thermal system. The Bio-Heat Equation is derived in order to solve the heat transfer phenomena in the tissue and with environment. It is assumed that the body is exposed to combination of the convection, evaporation and radiation which are taken into account as boundary conditions when solving the Bio-Heat Equation. Finite difference technique is used in order to find out the temperature distribution of human body. The derived equation by numerical method is solved by written software called Bio-Thermal. Bio-Thermal, is used to determine temperature distribution at succeeding time step of the viscera, lung, brain all tissue type of the torso, neck, head, leg, foot, arm, hand, and mean temperature of torso, neck, head, leg, foot, arm, hand. Additionally, for overall body, mean temperature of the bone tissue, muscle tissue, fat tissue, and skin tissue and mean temperature of the total body can be obtained by Bio-Thermal Software. Also, the software is to be capable of demonstrating the sectional view of the various body limbs and full human body. In order to verify the present study, predictions of the present system model are compared with the available experimental data and analytical solution and show good agreement is achieved.
Author: Eugene H. Wissler
Publisher:
ISBN: 9783662573969
Category : MEDICAL
Languages : en
Pages : 425
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Book Description
The principal objective of this book is to provide information needed to define human thermal behavior quantitatively. Human thermal physiology is defined using mathematical methods routinely employed by physicists and engineers, but seldom used by physiologists. Major sections of the book are devoted to blood flow, sweating, shivering, heat transfer within the body, and heat and mass transfer from skin and clothing to the environment. Simple algebraic models based on experimental data from a century of physiological investigation are developed for bodily processes. The book offers an invaluable source of information for physiologists and physical scientists interested in quantitative approaches to the fascinating field of human thermoregulation.
Author: Jan A. J. Stolwijk
Publisher:
ISBN:
Category : Biological models
Languages : en
Pages : 92
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Book Description
Author: Peter Tikuisis
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Book Description
A mathematical model of thermoregulation has been developed to simulate human physiological responses to cold-water immersion. Data were obtained from experiments where thirteen healthy male volunteers were totally immersed under resting and nude conditions for 1 h in water temperatures of 20 and 28 C. Mean measured rectal temperature (T sub re) fell by about 0.9 and 0.5 C in 20 and 28 C water for all subjects, yet mean measured metabolic rate (M) rose by about 275 and 90 W for the lean mass group (n=7) and 195 and 45 W for the normal mass group (n=6). To predict the observed T sub re and M values, the present model differed from its predecessors by a) determining a thermally neutral body temperature profile such that the measured and predicted initial values of T sub re and M were matched, b) including thermal inputs for shivering from the skin independent of their inclusion with the central temperature to account for the observed initial rapid rise in M, c) confining the initial shivering to the trunk region to avoid an overly large predicted initial rate of rectal cooling, and d) calculating the steady state of convective heat loss by assuming a zero rate of heat storage in the skin compartment.
Author: E. H. Wissler
Publisher:
ISBN:
Category :
Languages : en
Pages : 190
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Book Description
A workshop was held at The University of Texas at Austin in December 1982. The workshop evaluated available mathematical models which could be used to simulate human thermal behavior under various conditions. The program involved the following four activities; (1) obtain copies of the mathematical models, install them on computers located at the University of Texas, and verify that they were operating correctly, (2) collect sets of data suitable for testing mathematical models and enter them into a machine readable data base, (3) use the models to simulate the conditions represented by the experimental data, (4) discuss the simulated results with the authors of the models and a group of outstanding thermal physiologists who offer constructive criticism and suggestions for improving the models. (Author).
