By R. A. E. TIIor IsoN, S. M. MICHAELSON AND J. W. HOWLAND W ITH THE INCREASED USE of microwave generating systems, some with maximum output in excess of 1 megawatt, information on the l)iobogic effect of microwaves is of importance. Microwave energies range in the radio-frequency region of the electromagnetic spectrum from 300 megacycles/sec. (Mc./sec.) up to 300,000 Me/sec. This is equivalent...

The electromagnetic fields have a great influence on the behaviour of all the living systems. Microwaves occupy range in the EM spectrum is between frequencies of 300 MHz to 300 GHz with wavelengths of approximately 1 m to 1 mm. From several decades, hyperthermia has become major subject of interest in investigating the biological effects and applications of microwaves. Therapeutic applications...

Microwaves are injected into argon and helium helicon plasmas at 6 to 20 mTorr neutral pressure, 1.2 kW pulsed microwave power, up to 500 W continuous RF power, and up to 1 kG magnetic fields, with the objective of heating the tail of the electron energy distribution function (EEDF) and populating ion metastable states. Langmuir probes are used to measure the EEDF and optical emission spectrosc...

The fracture toughness of SLG filled phenolic composites have been determined by short bar tests. It is expensive to prepare the samples for the tests. Therefore, it is necessary to develop a mathematical model that will predict the fracture toughness of particulate filled phenolic composites. Mathematical models for tensile strength, Young’s modulus are available but not for impact strength an...

Editor, Reference to Microwave oven in microbiology laboratory, JPMA., 1992:42:2. In response to the queries by a microbiologist regarding the published paper we feel it would be appropriate to clarifr the facts. 1. Sterilization in microwaves works on a different principle than the conventional autoclave and sterilizadon is independent of temperature, just like the principle of sterilization b...

We study the temperature dependence of absorption microwaves by random-anisotropy magnets. It is governed strong metastability due to broad distribution energy barriers separating different spin configurations. At a low microwave power, when heating negligible, dynamics close linear. corresponds precession ferromagnetically ordered regions that are in resonance with field. Previously, we showed...