Food sterilization by microwave radiation
J. Bilbrough · 1969
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J. Bilbrough · 1969
Paul D. Coleman · 1969
B. Commoner, J. L. Ternberg, E. Larsson · 1969
The spectrometer maintained sample temperature within 1°C. The modulation amplitude was set to 16 gauss at 15°C.
A. A. Shindryayev · 1969
Jürgen Aschoff · 1969
Leo Birenbaum et al. · 1969
Researchers investigated the acute effects of continuous-wave and pulsed 5.5 GHz microwave radiation on rabbit eyes. They used a closed-waveguide system that delivered power directly to the eye, allowing precise measurement of power entering the eye. Lens opacities appeared within four days after sufficient exposure; three minutes at one watt exceeded the cataractogenic threshold, while two hours at 1/2-watt caused no acute effect. Threshold curves for continuous-wave and pulsed (0.001 duty cycle) radiation showed no substantial difference, indicating that average power determined injury.
E. S. COPELAND, S. M. MICHAELSON · 1969
DONALD H. REIGEL et al. · 1969
K. A. SIEGESMUND, A. SANCES, JR., S. J. LARSON · 1969
R. JOLY, G. PLURIEN, J. DROUET, B. SERVANTIE · 1969
J. E. FENN · 1969
HELEN B. TAUSSIG · 1969
The article is titled Death from Lightning and the Possibility of Living Again. A section of the article is headed Whare Ligtining Strikes. The article discusses lightning strikes and the possibility of survival.
Kamat GP, Janes DE · 1969
Harry E. Stockman · 1969
Eugene W. Plischke, Warren F. Wolff · 1969
Solem DL, Remark DG, Moore RL, Crawford RE, Rechen HJL · 1969
Unknown authors · 1969
A. M. Roberts · 1969
Brief exposure to light causes structural changes in the phototransduction process of invertebrate retinal cells. Honey bee colour vision is trichromatic, with visual cells excited into three types according to peak sensitivities.
Leo A. Bornstein · 1969
Freeman W. Cope · 1969
The author develops an elementary theory of sodium transport across an idealized membrane by chemiperistaltic waves. The model assumes waves of configurational change in cell surface proteins that alter ion complexing preference and water structure. The theory is consistent with frog skin experiments showing only about 8 per cent of total sodium participates in transport and most sodium is complexed.
Robert L. Bell et al. · 1969
Freeman W. Cope · 1969
Norbert T. Christman et al. · 1969
The study was designed to evaluate the feasibility of producing sleep in a variety of subjects without the use of sedatives and narcotics. The study used a two-fold approach: detecting physiological changes in evoked scalp potentials from small rectangular currents averaging 0 to 1.5 milliamperes, and detecting changes in evoked potentials from the induced sleep state. Squirrel monkeys were used initially to standardize the recording technique and determine physiological effects of the currents, followed by human volunteers for the quantitative sleep study.
D. H. Reigel et al. · 1969
Major abdominal surgery was performed under electroanesthesia in ten unintubated stump-tail macaque monkeys, with excellent muscle relaxation and complete analgesia at optimal current levels. Simultaneous monitoring of cardiovascular and respiratory systems showed no significant change. Respiratory rate became regular but about 10% slower at full current while minute volume, arterial pH, and blood gas tensions remained unchanged, and only slight blood pressure changes occurred with normal central venous pressure and no extra ECG dispersion.
J.A. TANNER, C. ROMERO-SIERRA, F. VILLA · 1969
A Leghorn chicken was exposed to 9.29 GHz pulsed microwaves at 100 mi/om@ while muscle activity was recorded with an 8-channel pen recorder. At radiation onset, muscle activity increased on the side facing the field and decreased almost to paralysis on the opposite side. After the field was turned off, the chicken recovered normal posture and muscle activity within seconds.