WorldCat Identities

Schwan, Herman P.

Overview
Works: 38 works in 78 publications in 2 languages and 940 library holdings
Genres: Conference papers and proceedings 
Roles: Editor, Author, Honoree, Other
Classifications: R856, 620.8
Publication Timeline
.
Most widely held works by Herman P Schwan
Biological engineering by Herman P Schwan( Book )

15 editions published between 1969 and 1993 in English and Undetermined and held by 434 WorldCat member libraries worldwide

Interactions between electromagnetic fields and cells by NATO Advanced Research Workshop: Interactions between electromagnetic fields and cells( Book )

9 editions published in 1985 in English and held by 200 WorldCat member libraries worldwide

Biological effects of non-ionizing radiations : cellular properties and interactions by Herman P Schwan( Book )

6 editions published between 1986 and 1987 in English and held by 70 WorldCat member libraries worldwide

Non-thermal efects of alternating electrical fields on biological structures( Book )

5 editions published between 1962 and 1970 in English and held by 4 WorldCat member libraries worldwide

ORIENTING EFFECTS OF ALTERNATING ELECTRIC FIELDS ON NONSPHERICAL PARTICLES: Theoretical investigation shows that such a particle embedded in a medium having a different complex dielectric constant will generally be oriented by an alternating electrical field. RESPONSE OF NONSPHERICAL BIOLOGICAL PARTICLES TO ALTERNATING ELECTRIC FIELDS: Stable orientation evoked by an alternating electric field was studied theoretically for arbitrary shapes and compositions of biological particles. As frequency of the electric field changes, both sudden jumps and gradual changes may arise in the stable direction. STUDIES OF THE TIME CONSTANT FOR PEARL-CHAIN FORMATION: Influence of particle size and sub- and supra-threshold electric field strengths was measured. The best experimental estimate of the time constant is 1.5 (particle diameter in microns) squared, where the constant is the time in seconds required for spherical particles of low dielectric constant (<10), suspended in an aqueous medium, to form pearl chains when the radio-frequency field strength was a threshold value. PEARL CHAINS TRANSVERSE TO THE ELECTRIC FIELD VECTOR: These were observed concurrently with longitudinal (ordinary) pearl chains. ELECTRICAL PROPERTIES OF BOUND WATER: Dielectric constant and conductivity data which pertain to hemoglobin were measured for the 1- to 1000-mc range
Measurements of materials with high dielectric constant and conductivity at ultrahigh frequencies by Herman P Schwan( Book )

2 editions published in 1953 in English and held by 2 WorldCat member libraries worldwide

Nonionizing electromagnetic radiations and ultrasound : proceedings of the twenty-second Annual Meeting, 2-3 April, 1986( Book )

1 edition published in 1988 in English and held by 2 WorldCat member libraries worldwide

PROPERTIES OF BIOLOGICAL MATERIAL( Book )

2 editions published between 1958 and 1960 in English and held by 2 WorldCat member libraries worldwide

Interactions between Electromagnetic Fields( Book )

1 edition published in 1985 in English and held by 1 WorldCat member library worldwide

We applied for this grant to support a workshop at Erice, Italy. This workshop has been commonly called 'Erice School' and the main subject of this workshop is the interaction of electromagnetic fields with biological cells and molecules. The grant from ONR enabled us to invite American scientists to participants in this workshop and deliver scientific papers. The duration of the Erice School was ten days. Therefore, we had sufficient time to discuss the problems of electromagnetic radiations. Vigorous discussions took place during official sessions and during private conversations. The participants of this workshop are mostly those who have been active in the research on bioelectromagnetics, but there are some numbers of speakers who discussed the basic electrical and magnetic properties of polyelectrolytes, biological membranes and tissue. The workshop was unique in that there were participants with a variety of training backgrounds. This enabled us to exchange the information between applied scientists and basic scientists. Also, active exchanges of opinions took place between biological scientists and physical scientists
The electrical properties of the mitochondrial membrane( Book )

1 edition published in 1959 in English and held by 1 WorldCat member library worldwide

Determination of biological impedances by Herman P Schwan( Book )

1 edition published in 1960 in English and held by 1 WorldCat member library worldwide

Microwaves and Thermoregulation: Historical Intrtoduction( Book )

1 edition published in 1981 in English and held by 1 WorldCat member library worldwide

Building models of the thermoregulatory system and gaining insight about how RF energy is absorbed by the human body have been two distinct disciplines with very little cross-fertilization for several decades. Their historical developments have much in common. In both cases, models of the human body were introduced which were initially very simple. These models were eventually replaced by increasing complex models providing ever-increasing predictive capability. I will first outline the history of thermal RF-tolerance and of thermoregulation and then conclude with a survey of recent attempts to merge these two areas. The models to be considered are: (1) RF and MW energy deposition, (2) human thermoregulation, and (3) thermoregulation and microwaves
The electrical conductance and dielectric constant of the interior of erythrocytes( Book )

1 edition published in 1958 in English and held by 1 WorldCat member library worldwide

ANNUAL PROGRESS REPORT, 1961( Book )

1 edition published in 1962 in English and held by 1 WorldCat member library worldwide

Application of uhf impedance measuring techniques in biophysics( Book )

1 edition published in 1955 in English and held by 1 WorldCat member library worldwide

Biological engineering. Ed. by Herman P. Schwan, with contributions by Richard FitzHugh by Herman P Schwan( Book )

in French and held by 1 WorldCat member library worldwide

Absorption of electromagnetic energy in body tissues : a review and critical analysis by Herman P Schwan( Book )

in English and held by 1 WorldCat member library worldwide

The time constants of pearl-chain formation( Book )

1 edition published in 1960 in English and held by 1 WorldCat member library worldwide

The time constants involved in the pearl-chain formation are of the order of a second for the radius of 1 micron, and they are porportional to the cube of the radius. The time constants are not strongly dependent on the field intensity when it is small, and they are inversely proportional to the square of the field intensity when it is large. The transition between the two regions occurs near the threshold. For particles of several microns or of larger sizes, the time constants become as large as hundreds of seconds, and consequently there exists a danger of observing erroneous threshold values in experimental works. The pulsed applied field is as effective as is expected from its r.m.s. value for usual radar systems. The hazards due to heat become pronounced before the field intensity is large enough for the pearl-chain to form if the particle size is less han 10 micron. The phenomenon of pearl-chain formation was considered of no biological significance in the area of microwave hazards due to radar exposure. (Author)
Theoretical consideration pertaining to thermal dose meters( Book )

1 edition published in 1960 in English and held by 1 WorldCat member library worldwide

SCATTERING AND ABSORPTION OF MICROWAVES BY DISSIPATIVE DIELECTRIC OBJECTS: THE BIOLOGICAL SIGNIFICANCE AND HAZARDS TO MANKIND( )

1 edition published in 1963 in English and held by 0 WorldCat member libraries worldwide

The relative absorption cross section of mankind exposed to nonionizing microwave radiation was determined using doll and sphere phantoms whose electrical properties simulated those of a human being. The investigation proceeded in three stages of increasing difficulty: (1) theoretical and experimental study of homogeneous phantoms, having the electrical properties of muscle tissue; (2) theoretical studies of two-layer phantoms, having the electrical properties of muscle tissue and subcutaneous fat; and (3) ex trapolation to three-layer phantoms, having the electrical properties of muscle tissue, subcu taneous fat, and skin. The investigation at each stage resulted in certain generalizations which could be used as a guide to the investigations at the succeeding stage. In this way both the theoretical and experimental work necessary was simplified. The final stage involved a synthesis of all the previous work so that the relative absorption cross section of mankind could be predicted with confidence for the total frequency range from 400 to 10000 Mc/s
 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.63 (from 0.43 for Absorption ... to 0.99 for Non-therma ...)

Alternative Names
Herman P. Schwan American engineer

Herman Schwan

Herman Schwan ingénieur américain

Schwan, H.

Schwan, H.P.

Schwan, H. P. (Herman P.)

Schwan, Herman Paul.

Schwan, Hermann.

هرمان شوان

赫爾曼·施萬

Languages
English (57)

French (1)