Results 251 to 260 of about 1,086,608 (306)

Reducing Microwave Absorption with Chaotic Microwaves

2017
We study the response of a two-level quantum system to a chaotic signal using numerical methods and compare it to the response to a sinusoidal signal. We expect the largest response for sinusoidal driving functions, because the Schrodinger equation is linear. The method is based on numerical solutions of the Schrodinger solution of the two-level system,
Juehang Qin, A. Hubler
openaire   +1 more source

Microwave Radiation Absorption

Health Physics, 1991
The literature contains much evidence that absorption of microwave energy will lead to behavioral changes in man and laboratory animals. The changes include simple perturbations or outright stoppage of ongoing behavior. On one extreme, intense microwave absorption can result in seizures followed by death.
openaire   +2 more sources

Water Vapor Continuum Absorption in the Microwave

IEEE Transactions on Geoscience and Remote Sensing, 2011
The accurate modeling of continuum absorption is crucial for the so-called window regions of the spectrum, the relatively transparent regions between lines. The window regions in the microwave are of critical importance for Earth remote sensing and data assimilation.
Vivienne H. Payne, Eli J. Mlawer, Karen E. Cady-Pereira, Jean-Luc Moncet   +3 more
openaire   +1 more source

Microwave absorption of a superconducting lead sphere

Physical Review B, 1989
Microwave absorption spectra have been observed at 9.3 GHz from a superconducting lead sphere. The main signal, which moves to lower fields and decreases in width as the temperature is raised, is associated with the intermediate state. Changes in the position, shape, and reversibility of the spectrum with higher modulation fields indicate sample ...
, Rubins, , Hutton, , Drumheller
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Dosimetry and Microwave Absorption

2021
Microwaves must be coupled into the biological body and energy must be transferred, deposited, and absorbed by tissues in the body for the system to respond in some manner. The exposure may produce highly complicated distributions of RF and microwave energy within the subject, regardless of the uniformity of external exposure.
openaire   +1 more source

Microwave absorption spectroscopy

Journal of Chemical Education, 1966
Examines the theory of microwave absorption, microwave techniques, microwave sources, and microwave spectrometers.
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Nonlinear microwave absorption in Ba1−xKxBiO3

Physica C: Superconductivity, 1994
Nonlinear, field-modulated, direct microwave absorption (FMMA) was observed in copper-free Ba1-xKxBiO3 powder samples. The high-field, low-temperature results were compared to previous measurements of YBa CuO and BiSrCaCuO. The microwave wave determined critical field μ0H* = 0.7 μT and depinning current density J* c ≈ 1 × 107 A/m2 were obtained from ...
Warden M., Ivanshin V., Erhart P.
openaire   +3 more sources

Microwave Absorption by Normal and Tumor Cells

Science, 1971
Energy levels exist in mammalian cells which result in the absorption of microwaves between 66 and 76 gigahertz. Many of these energy levels occur when water molecules associate with the various chemical groups of macromolecules. The absorption spectra of cells between 66 and 76 gigahertz, therefore, is determined by the structure of in vivo water ...
Webb, S, Booth, A
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Modulated microwave absorption in superconducting mercury

Physical Review B, 1989
Modulated microwave absorption spectra associated with the intermediate state have been observed at 15.1 GHz for an oblong mercury sample. The use of a liquid-helium bath eliminated the thermal instabilities associated with modern, gas-flow cooling systems.
, Rubins, , Black, , Jeong
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Microwave Absorption Behaviour

2016
The high-frequency absorption behaviour of amorphous ferromagnetic materials, among others, is of considerable interest for microwave absorber applications (Vazquez and Adenot-Engelvin in J Magn Magn Mater 321:2066–2073, 2009). Since amorphous glass-coated microwires have small dimensions (1–30 µm in diameter), high electrical conductivity (~6×105 S/m),
Hua-Xin Peng, Faxiang Qin, Manh-Huong Phan   +2 more
openaire   +1 more source