Results 241 to 250 of about 235,222 (294)

Microwave absorption performance of ZnAl2O4

Chemical Engineering Journal, 2020
Abstract The morphological modification has demonstrated that can pave the way of the microwave absorbing materials. The ZnAl2O4 nanoparticles with diverse morphology have been tailored using modified sol-gel and solvothermal methods. 2D structures and hollow blueberry like morphologies of the ZnAl2O4 nanostructures were architected by the sucrose ...
Reza Peymanfar, Farbod Fazlalizadeh
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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 spectrometer for saturated absorption experiments

Review of Scientific Instruments, 1978
A spectrometer has been built to perform Doppler-free saturated absorption experiments in the millimeter range (30–300 GHz); a plane-cylindrical resonator between Stark plates has been used. With that device, inverted Lamb-dips have been observed at 115 GHz with a width 25 times below the Doppler width.
J, Legrand, B, Ségard, A, Krosta, B, Macke   +3 more
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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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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
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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.
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Microwave Absorption in Rare-Earth Metals

Journal of Applied Physics, 1965
Microwave absorption phenomena have been investigated in single crystals of the rare-earth metals Tb, Dy, Ho, and Er, at frequencies of 9.44 and 35.3 Gc/sec over the temperature range 10° to 290°K. Microwave absorption occurs at the critical field transitions for the antiferromagnetic phase.
D.M.S. Bagguley, J. Liesegang
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Absorption of microwaves in the microwave oven

The Physics Teacher, 2001
A microwave oven is used to demonstrate that, in comparison to liquid water, both ice and liquid nitrogen are almost completely transparent to microwaves. The difference in transparency is also simply explained.
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Critical Slowing-Down in Microwave Absorptive Bistability

Topical Meeting on Optical Bistability, 1982
In this experiment one utilizes a microwave confocal open resonator in the transmission configuration, having a Q factor of 5 105. The resonator is filled with ammonia gas at the pressure of 1 mTorr. A klystron oscillator, frequency stabilized on the 3-3 ammonia inversion line, feeds the resonator which is tuned at the same frequency.
BARBARINO S, GOZZINI A, MACCARRONE, FRANCESCO, LONGO I, STAMPACCHIA R.   +4 more
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A wearable microwave absorption cloth

Journal of Materials Chemistry C, 2017
A wearable microwave absorption cloth was assembled from a novel multi-scale graphene-supported carbon/nonwoven composite absorber coupled with a reflection plane. The as-fabricated cloth that fulfills the representative wearable characteristics presents qualified microwave absorption performance, promising outstanding platform for the development of ...
Wei-Li Song, Li-Zhen Fan, Zhi-Ling Hou, Kai-Lun Zhang, Yongbin Ma, Mao-Sheng Cao   +5 more
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