EMF Research Studies

Direct Demonstration of Dielectric Breakdown in the Membranes of Valonia utricularis

Hans G. L. Coster, Ulrich Zimmermann · 1975

Researchers increased the membrane potential of Valonia utricularis cells rapidly by applying ~500 ws current pulses. Dielectric breakdown occurred when the membrane potential reached ~0.85 V, shown by a discontinuous increase in current. The breakdown was reversible and could be repeated after a resealing time of approximately 10 seconds. When pulses were repeated with less than 10 seconds between them, the cells deteriorated rapidly and breakdown could no longer be detected. The rapidity of the breakdown ruled out a punch-through mechanism, while heating was ruled out by a separate argument.

Crossed-beam apparatus for simultaneous spectrophotometric observation and microwave exposure of biochemical samples

John W. Allis, Claude M. Weil, David E. Jones, Jr. · 1975

A waveguide applicator is mounted vertically in a Cary 15 spectrophotometer so the sample sits in both the light path and the microwave slot. Temperature of the irradiated and reference samples is monitored continuously and can be matched within a few tenths of a degree from 15 to 40 °C. Theoretical analysis showed about 16% of incident microwave power is absorbed by the sample, and measured temperature profiles confirmed relatively uniform heating in the upper half of the cuvette. Spectrophotometric tests found no artifacts from the microwave hardware and stray light remained below 0.01% up to an absorbance of 3.0.

Experimental Models for the Evaluation of Microwave Biological Effects

Czerski, P. · 1975

Magnetic fields of the human body

David Cohen · 1975

'73 Report Cites Biological Effects In Radio Project

George C. Wilson · 1975

Are the Weak Neutral Currents an Electromagnetic Effect?

B. Jouvet · 1975

Microwave ovens: what's cooking?

Don Mennie · 1975

Electroanesthesia and Electrosleep

Clinton C. Brown · 1975

LOW ENERGY ELECTROMAGNETIC PERTURBATION OF AN ENZYME SUBSTRATE

B. C. GOODWIN, SILVIA VIERU · 1975

BROADCAST RADIATION: A SECOND LOOK

R.A. Tell, D.E. Janes · 1975

The EPA extended its analysis of broadcast radiation by calculating power densities at roof and ground levels near FM installations using vertical radiation patterns and FCC antenna height data. The study found that grating lobes from FM and VHF-TV antennas can produce ground-level electric field strengths as intense as the main lobe at the same distance. Field measurements in Las Vegas recorded a maximum power density of 10.8 µW/cm² from broadcast stations, while Washington DC measurements showed that broadcast stations and nearby radar installations were the principal component of total power density. Predicted rooftop power densities reached 9.1 mW/cm² in Minneapolis and 5.6 mW/cm² at Shell Plaza in Houston, approaching the OSHA occupational limit of 10 mW/cm².

Thermoregulatory, metabolic, and cardiovascular response of rats to microwaves

Richard D. Phillips et al. · 1975

A review of microwave radiation hazards and safety standards

Lindsay IR · 1975

Effects of electromagnetic radiation on the nervous system

W. R. Adey · 1975

The effect of ionizing radiation combined with microwaves on permeability of the histo-hematic barrier

Fa'itel'berh-Blank VR, Orlova AV · 1975

A MINIATURE BROAD-BAND ELECTRIC FIELD PROBE

H. Bassen, M. Swicord, J. Abita · 1975

Contrast of dose distribution in phantom heads due to aperture and plane wave sources

Henry S. Ho · 1975

CHANGES IN RADIOFREQUENCY E-FIELD STRENGTHS WITHIN A HOSPITAL DURING A 16-MONTH PERIOD

Paul S. Ruggera · 1975

Variable frequency exposure system for small biological specimens

McRee D, Walsh P, Mathew R · 1975

The system provides continuous wave and modulated electromagnetic radiation across the 1-10 GHz frequency range. Field uniformity at the specimen location is ±10% over 6 cm and 20% over 9 cm at 10 GHz, and within ±8% over 16 cm at 1 GHz. The system uses sweep oscillators and traveling wave tube amplifiers to generate radiation.

Some Health Aspects of High-Energy Society

Earl Cook · 1975

He calculates that more than eight units of fossil-fuel energy are consumed for every unit of food energy on the U.S. table. The paper identifies mutagenic and teratogenic effects of radiation, drugs, and chemicals as essentially unknown because multi-generation human tests have not been done. Over 98% of U.S. gross energy input comes from finite, nonrenewable fossil fuels that cannot be recycled.

Burns caused by simultaneous use of diathermy and ECG

Larsen JP, Eriksen T · 1975

Parallel plate microwave applicator

Van Koughnett AL, Kashyap SC, Dunn JG · 1975

Blindness, Deafness and Vestibular Dysfunction in a Microwave Worker

Milton M. Zaret, M.D. · 1975

CLINICAL ASPECTS OF THE EFFECT OF METRIC RANGE ELECTROMAGNETIC FIELDS

A. I. Kleyner et al. · 1975

EMP SUSCEPTIBILITY OF INTEGRATED CIRCUITS

C. R. Jenkins, D. L. Durgin · 1975

The United Kingdom national standard of microwave noise at 4·1 GHz and 77 K

D J Blundell · 1975

The paper describes the UK primary noise standard in the 3.75–4.25 GHz band, emphasizing simplicity in cryogenic noise standards and noting difficulties in calibrating previous designs. A model in waveguide size WGI1A (WR-229) is described and analysed in detail, featuring a termination with a kapton polyimide window, a copper gasket, and a conical silicon carbide resistive element, and an unplated steel transition section. The standard has operated successfully for two years, including an international intercomparison with Japan, with output noise temperature variation typically 5 mK due to gas flow changes.