Results 201 to 210 of about 43,065 (264)

Gymnema sylvestre: Bioactive constituents, health benefits, and emerging applications in nutraceuticals and functional foods

open access: yesJSFA reports, EarlyView.
Abstract Gymnema sylvestre (Retz.) R.Br. ex‐Schult., commonly known as “gurmar” or “sugar destroyer,” belongs to the Apocynaceae family and is traditionally used in Ayurveda for diabetes management. This review synthesizes ethnomedicinal evidence with contemporary pharmacological studies, to evaluate the therapeutic properties and mechanistic actions ...
Faiza Saeed   +5 more
wiley   +1 more source
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Conductivity of Plasmas to Microwaves

Physical Review, 1958
A relation between the current-induced part of the distribution function (f/sub 1/) and the isotropic part (f/sub 0/), which was previously derived with limiting restrictions, is here shown ABSTRACTS to be valid at moderate electric fields for any form of fo, e.g., for the case where an agency other than the passing microwaves determines it.
Desloge, Edward A.   +2 more
openaire   +4 more sources

Conductivity of Plasma to Microwaves

Physical Review, 1959
Plasma conductivities for electrons with a Maxwellan energy distribution are evaluated for the cases in which the collision cross section is (i) velocity independent and (ii) inversely proportional to the velocity. The corresponding distribution functions of relaxation times are discussed. (auth)
openaire   +1 more source

Microwave Plasma Carburizing

2016
Thermochemical treatments carried out in microwave plasma are applied to steel substrates to increasehardness and prevent corrosion and simultaneously improve wear resistance. They are efficient for steelcarburizing. Since they are electrodeless process, the steel is free from metallic sputtering.
Jauberteau, Isabelle   +1 more
openaire   +3 more sources

Microwave-Thawed Plasma for Cryoprecipitate Production

Vox Sanguinis, 1985
Abstract. A microwave oven has been used to obtain rapid and controlled thawing of frozen plasma packs for cryoprecipitate production. The resulting factor VIII yields were higher than the average of 77.8 IU (in a volume of 17.2 ml) obtained by the slow overnight thaw procedures in routine use. Assays on 10 individual packs showed mean results of 142 ±
H, Bass, P M, Trenchard, M J, Mustow
openaire   +2 more sources

Plasma microwave electronics

Soviet Physics Uspekhi, 1981
The theory of Cherenkov and cyclotron plasma sources of coherent microwave radiation excited by intense electron beams is reviewed systematically. The linear approximation of the theory yields the output frequency spectra, the wave growth rates, and the threshold electron beam currents required for exciting these sources.
L.S. Bogdankevich   +2 more
openaire   +1 more source

Simulating Plasma Microwave Diagnostics

Journal of Scientific Computing, 2006
The paper presents computational simulations of plasma diagnostics via microwave absorption, where the number density of the charge particles and its collision frequency with the neutral particles are measured basing on the microwave attenuation phenomenon.
openaire   +2 more sources

Microwaves and plasmas

Journal of the Institution of Electrical Engineers, 1963
Interest in the use of plasma devices as amplifiers and oscillators at microwave frequencies has been stimulated by the increased knowledge of plasma physics gained from thermonuclear research. Although of small value to the microwave engineer at present, these techniques may provide the means of attaining higher operating frequencies than those ...
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Interactions of Microwave with Plasmas

Plasma Science and Technology, 2003
When plasma size scale is comparable with the wavelength of electromagnetic waves, W.K.B. solution isn't applicable. In this paper a new numerical solution technique to investigate interactions of microwave with plasmas is presented by using Runge-Kutta method.
Zhang Haifeng, Shao Fuqiu, Wang Long
openaire   +1 more source

Plasmas and Microwaves

PTGMTT National Symposium Digest, 2005
Since the inception of modern plasma research, microwaves have played an important role. It has first served as a diagnostic tool to determine such properties of the plasma as electron density, collision frequency and electron temperature. Second the plasma with an applied magnetic field has served as a medium with interesting propagation properties ...
openaire   +1 more source

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