نتایج جستجو برای: microwaves
تعداد نتایج: 2010 فیلتر نتایج به سال:
In common usage, the handset of a wireless telephone is held against the ear. Computational and experimental studies have demonstrated that about 50% of the radiated RF/microwave energy is deposited in tissues on the same side of the head, nearest to the telephone. The deposited energy measured in specific absorption rates (SAR) of RF/microwave energy is nonuniformly distributed inside the head...
The aim of this paper is to overview the diverse biological effects of non-thermal microwaves (NT MWs) and complex dependence of these effects on various physical and biological parameters. Besides dependencies on frequency and modulation, the available data suggest dependencies of the NT MW effects on intermittence and coherence time of exposure, polarization, static magnetic filed, electromag...
The modification of microwave signals passing through an electron cloud can be used as a diagnostic tool for detecting its presence and as a measure for its effective density. This observation method was demonstrated in pioneering measurements at the CERN SPS in 2003 with protons and at PEP-II in 2006 with positron beams in the particle accelerator field. Results and applications of this techni...
As we begin our second year, the IEEE Journal of Microwaves hopes to build on its early success in reaching out both authors and readers what can only be regarded as an auspicious first step into realm fully Open Access publishing within microwave community. Through a combination innovative ide...
A hypothesis is proposed to explain resonant biological effects of microwaves. The interaction is thought to occur with low-frequency electronic transitions of transient triplet (or quartet etc.) m olecules. A s the transient m olecules’ substate populations can be assumed to be far from thermal equilibrium the effect of resonant microwaves would be to equalize the population of two substates. ...
This paper presents local solidification of metal powder, irradiated by localized microwaves, as potential means for stepwise additive formation of 3D structures. Experimental results of metal powder solidified locally by microwaves are presented in forms of spheres and rods in a 1-10 mm range. The feasibility of extending solid structures by adding powder batches and solidifying them locally, ...
Time dependent experiments with evanescent modes (photonic tunneling) can be performed with high precision and at a macroscopic scale with microwaves in the range of meters or in the infrared regime in the range of centimeters. The infrared technology is the present day digital signal processing and transmission. Superluminal (faster than light) signal transmission by evanescent modes was shown...
A simple protocol has been developed for recycling plastic tissue culture vessels. The killing properties of microwaves were used to decontaminate plastic tissue culture vessels for reuse. Nine bacterial cultures, four gram-negative and five gram-positive genera, including two Bacillus species, were used to artificially contaminate tissue culture vessels. The microwaves produced by a "home-type...
In this short paper, we describe a novel approach to both significantly accelerate and optically amplify fluorescence-based immunoassays. Our approach utilizes metal-enhanced fluorescence (MEF) to intrinsically optically amplify fluorescence signatures, which, when combined with the use of low-power microwaves to kinetically accelerate assays, provides for both ultrafast and ultrabright immunoa...
M. Stachowicz, J. Mażulis, K. Granat, A. Janus, Wroclaw University of Technology,Department of Foundry Engineering and Automation, Wrocław, Poland The paper presents the results of applying microwaves to support the drying, redrying and hardening process of molding and core sands made of different types of matrix. In the tests of the microwave heating process a slot line measuring stand was use...
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