Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing all 6,486 studies
Unknown authors · 1980
C.S. MacLatchy, R.M. Clements · 1980
D.I. McRee, R. Faith, E.E. McConnell, A.W. Guy · 1980
A.W. Guy, P.O. Kramar, C.A. Harris, C.K. Chou · 1980
Researchers exposed four rabbits to 2450-MHz CW microwave radiation at 10-m W/cm² for 23 h per day for 180 days, while four control rabbits were sham-exposed. Periodic eye examinations and monitoring of body mass, urinary output, rectal temperature, hematocrit, hemoglobin, white cell count with differential, platelet count, and blood coagulation revealed no significant differences except a decrease in eosinophil percentage. Additional analyses at the National Institute of Environmental Health Sciences found significant decreases in albumin, calcium, and albumin/total globulin ratio, and a significant increase in myeloid/erythroid ratio in bone marrow of exposed rabbits.
Robert T. Hill · 1980
Herman P. Schwan · 1980
Joseph K. Kielman et al. · 1980
The authors reviewed experimental results from investigators worldwide on radiofrequency and microwave radiation bioeffects. Absorption of electromagnetic energy between 300 kHz and 300 GHz depends on frequency, organism geometry, and tissue dielectric properties. At power densities above 10 mW/cm2, energy dissipation can cause thermogenesis. Below 10 mW/cm2, core temperature and metabolic rate remain unchanged but biological effects are observed, including alterations in blood-brain barrier, neurotransmitter release, EEG, heart rate, immunocompetence, hematopoiesis, neuroendocrine function, and behavior. Subjective human effects such as headaches, weakness, and auditory response have also been reported.
Unknown authors · 1980
Leonard David · 1980
The study outlines the historical background of U.S. microwave exposure guidelines and identifies the lead federal agencies. No federal standards exist to protect workers or the public, only a voluntary 10 mW/cm² guideline from 1966. Regulatory trends point toward more stringent occupational and public exposure limits, possibly as low as 1 mW/cm². The SPS system would deliver 23 mW/cm² at the rectenna center, 1 mW/cm² or less at the edge, and 0.1 mW/cm² at the buffer zone boundary. Current data show no morbid effects from 2,450-MHz radiation below 1 mW/cm², but long-term exposure studies are lacking.
R. Huguenin, J. Engdahl · 1980
Unknown authors · 1980
not specified in article text · 1980
Ashley J. Welch, E. H. Wissler, Leslie A. Priebe · 1980
Charles A. Cain · 1980
Charlotte Silverman · 1980
The review describes two unpublished cohort studies: one of U.S. naval personnel occupationally exposed to radar, and another of American Embassy personnel in Moscow compared with employees at eight other Eastern European posts. Neither study found differential health risks associated with presumed microwave exposure, but both had significant limitations.
Foreign Broadcast Information Service (FBIS) · 1980
The publication contains articles, abstracts of articles, and news items from USSR scientific and technical journals. The content covers the specific subjects reflected in the table of contents.
Unknown authors · 1980
The technical note defines the basis of accuracy for the Model IOOOA and helps the customer optimize results. The look-up table in the Model IOOOA is accurate to 0.05°C or better throughout its range. A built-in calibration reference allows each probe to be optimized by inserting the sensor into the calibration well and making an adjustment. Current probes show a precision of 0.1°C. The instrument's resolution is the 0.1° digit on the display.
D. Tikhonov · 1980
Kenneth A. Wickersheim, Ronald V. Alves · 1980
Electrical thermometry techniques are not practical for electrically induced heating because metallic wires reflect microwave and RF radiation and distort the heating pattern. The fluoroptic sensor uses europium-activated gadolinium oxysulfide phosphor excited by ultraviolet radiation through a single optical fiber. The sensor achieves temperature precision of 0.19°C over the range from 0° to 100°C. Probe diameters of 0.2 to 0.5mm appear feasible, with diameters approaching 0.5mm using thinner coatings on 400 micron core fibers and diameters down to 0.2mm using smaller 100 to 200 micron core fibers. Present sensors have been cycled repeatedly from 0°C to 200°C without affecting calibration.
R. Prater et al. · 1980
The project objective was to find a means for steady-state tokamak reactor operation because current tokamaks operate cyclically, causing temperature cycling of the first wall, a need for thermal energy storage, and large power handling requirements. RST uses a novel superconducting toroidal field coil concept with only three return legs and superconducting pullback coils to reduce magnetic field ripple, greatly increasing plasma access. The design specifies a major radius of 80 cm, minor radius of 20 cm, and on-axis magnetic field of 1.5 T, intended to be built in about two years for under <5M$.
R.E. Mudgett, S.A. Goldblith, D.I.G. Wang, W.B. Westphal · 1980
Standing wave measurements were made at 3 GHz, 25°C, for samples equilibrated to various moisture contents and water activities. Dielectric loss increased slowly from 11-86% ERH, rose rapidly to a maximum at about 97% ERH, then fell sharply at higher water activities. The results suggest a critical water activity near 86% ERH or 21% moisture for activation of dielectric loss mechanisms, related to mobile water availability. An electrophysical two-phase model essentially predicted the dielectric behavior across the moisture range.
Jerry E. Bishop · 1980
Milton M. ZARET, M.D. · 1980
Myron L. Wolbarsht, David H. Sliney · 1980
Unknown authors · 1980
The instrument measures fields from 0.5 MHz to 1000 MHz and from 1 v/m to 3160 v/m in six ranges. Its isotropicity is specified as +1 dB over the full rotation of the probe head. The standard battery pack provides approximately 40 hours of continuous operation.