Author: Pekka Piironen
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
Book Description
Elaboration of mathematical analogues for the human thermal system implies that various simplified, steady-state and dynamic, heat transfer situations are experimentally mastered with full repeatability. In a stable thermal environment, the high thermal time constants of peripheral tissues and individual structural and functional differences impede the achievement of comparable and reproducible stationary and dynamic heat transfer situations in the organism at rest and during exercise. However, by active governing of the skin temperature, the establishment of steady states can be greatly accelerated and the development of desired dynamic states is under control. The aim of the study was to develop a set of equipment for regional controlling of skin temperatures and equipment for measuring the external heat exchange of the different parts of the body. The methods and equipment have been applied in testing a simple mathematical model which was worked out to describe the passive part of human heat transfer system. (Author).
Assessment of Regional Heat Losses for Verification of Mathematical Analogues of the Human Thermal System
Author: Pekka Piironen
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
Book Description
Elaboration of mathematical analogues for the human thermal system implies that various simplified, steady-state and dynamic, heat transfer situations are experimentally mastered with full repeatability. In a stable thermal environment, the high thermal time constants of peripheral tissues and individual structural and functional differences impede the achievement of comparable and reproducible stationary and dynamic heat transfer situations in the organism at rest and during exercise. However, by active governing of the skin temperature, the establishment of steady states can be greatly accelerated and the development of desired dynamic states is under control. The aim of the study was to develop a set of equipment for regional controlling of skin temperatures and equipment for measuring the external heat exchange of the different parts of the body. The methods and equipment have been applied in testing a simple mathematical model which was worked out to describe the passive part of human heat transfer system. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
Book Description
Elaboration of mathematical analogues for the human thermal system implies that various simplified, steady-state and dynamic, heat transfer situations are experimentally mastered with full repeatability. In a stable thermal environment, the high thermal time constants of peripheral tissues and individual structural and functional differences impede the achievement of comparable and reproducible stationary and dynamic heat transfer situations in the organism at rest and during exercise. However, by active governing of the skin temperature, the establishment of steady states can be greatly accelerated and the development of desired dynamic states is under control. The aim of the study was to develop a set of equipment for regional controlling of skin temperatures and equipment for measuring the external heat exchange of the different parts of the body. The methods and equipment have been applied in testing a simple mathematical model which was worked out to describe the passive part of human heat transfer system. (Author).
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
Book Description
Technical Information Indexes
Author: United States. Naval Air Systems Command
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 672
Book Description
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 672
Book Description
Government Reports Announcements
Author:
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 1484
Book Description
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 1484
Book Description
Aerospace Medicine and Biology
Author:
Publisher:
ISBN:
Category : Aviation medicine
Languages : en
Pages : 240
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Publisher:
ISBN:
Category : Aviation medicine
Languages : en
Pages : 240
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Topics in Transport Phenomena
Author: Chaim Gutfinger
Publisher: Hemisphere Pub
ISBN:
Category : Science
Languages : en
Pages : 644
Book Description
Publisher: Hemisphere Pub
ISBN:
Category : Science
Languages : en
Pages : 644
Book Description
Government Reports Announcements & Index
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 690
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 690
Book Description
Government Reports Index
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1120
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1120
Book Description
Undersea Biomedical Research
Author:
Publisher:
ISBN:
Category : Pressure
Languages : en
Pages : 522
Book Description
Publisher:
ISBN:
Category : Pressure
Languages : en
Pages : 522
Book Description
The Mathematical Analysis of Heat Transfer and Temperature Relations in the Human Body
Author: EUGENE H. WISSLER
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
The synthesis of an adequate mathematical model for the human thermal system must include the following factors: (1) the manner in which heat generated by metabolic reactions is distributed throughout the body, (2) conduction of heat ue to thermal gradients, (3) convection of heat by circulating blood, (4) the geometry of the body, (5) the relatively low thermal conductivity of the superficial layer of fat and skin, (6) countercurrent heat exchange between large arteries and veins, (7) heat loss through the respiratory tract, (8) sweating, (9) shivering, (10) the storage of heat, and (11) the condition of the environment, including its temperature, motion relative to the body, and relative humidity. This report describes the progress which was made on the synthesis of such a model. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
The synthesis of an adequate mathematical model for the human thermal system must include the following factors: (1) the manner in which heat generated by metabolic reactions is distributed throughout the body, (2) conduction of heat ue to thermal gradients, (3) convection of heat by circulating blood, (4) the geometry of the body, (5) the relatively low thermal conductivity of the superficial layer of fat and skin, (6) countercurrent heat exchange between large arteries and veins, (7) heat loss through the respiratory tract, (8) sweating, (9) shivering, (10) the storage of heat, and (11) the condition of the environment, including its temperature, motion relative to the body, and relative humidity. This report describes the progress which was made on the synthesis of such a model. (Author).