Results 241 to 250 of about 159,538 (294)

Differential Heating of Metal Nanostructures at Radio Frequencies

Physical Review Applied, 2021
Nanoparticles with strong absorption of incident radio frequency (RF) or microwave irradiation are desirable for remote hyperthermia treatments. While controversy has surrounded the absorption properties of spherical metallic nanoparticles, other geometries such as prolate and oblate spheroids have not received sufficient attention for application in ...
Nicholas J. Rommelfanger, Zihao Ou, Carl H.C. Keck, Guosong Hong   +3 more
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The Radio Frequency Heating of Magnum-psi

Fusion Science and Technology, 2005
Magnum-psi is a linear device to be constructed at the FOM-Rijnhuizen institute and designed to produce plasmas allowing the study of plasma-surface interaction processes relevant to the ITER divertor. The plasma cross-section will be about 100 cm{sup 2}, the plasma density around 10{sup 20} m{sup -3} and the temperature around 3eV.
Koch, R., Messiaen, A.M., Lopes Cardozo, N.J.   +2 more
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Softwood heating in radio frequency fields

European Journal of Wood and Wood Products, 2010
The aim of this study was to investigate the heating rate of lodgepole pine (Pinus contorta) and western red cedar (Thuja plicata) during radio frequency (RF) heating. Wood specimens (40 × 150 × 1000 mm3) with various moisture content and power density were heated using a laboratory size RF dryer at a frequency of 40.7 MHz, until shell temperature ...
Ken Watanabe, Alhassan Abubakari, Ciprian Lazarescu, Stavros Avramidis   +3 more
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Principles of Radio‐frequency Heating

Journal of the Society of Dyers and Colourists, 1982
The conservation of energy or the introduction of new techniques which will allow less energy to be used is an important area of activity for the Scarce Resources Committee. Accordingly, very successful half‐day symposia were held in 1980 to discuss the application of radio‐frequency techniques in textile processing.
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Dye Fixation Using Radio—frequency Heating

Journal of the Society of Dyers and Colourists, 1984
Radio‐frequency (r.f.) heating has been used to achieve the fixation of acid dyes on nylon fibres. This permitted rapid heating to the fixation temperature, and some enhancement in the degree of dye penetration was observed. Success was also obtained in fixing disperse dyes on polyester and reactive dyes on cotton using r. f. techniques.
R M Perkin, N Catlow
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Economic aspects of radio-frequency heating

Electrical Engineering, 1948
The importance of industrial applications of radio-frequency heating is emphasized by the growth of this field which has expanded into a business with an eight million dollar annual volume. Thus, an economic analysis of some of the problems including cost data in specific industries is of interest.
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Radio Frequency Heating of Carbon Nanotube Composite Materials

ACS Applied Materials & Interfaces, 2018
Here, we give the first-ever report of radio frequency (RF) electromagnetic heating of polymer nanocomposite materials via direct-contact and capacitively coupled electric field applicators. Notably, RF heating allows nanocomposite materials to be resistively heated with electric fields.
Charles B. Sweeney, Aaron G. Moran, Jacob T. Gruener, Alex M. Strasser, Martin J. Pospisil, Mohammad A. Saed, Micah J. Green   +6 more
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Radio-Frequency Heating in Food Processing

2004
Radio-frequency (RF) heating generally refers to dielectric heating in nonmetallic materials caused by electromagnetic energy ranging between 10 and 300 MHz (Orfeuil, 1987). An industrial heating system operating in the ISM (Industrial Scientific Medical) frequency bands at 13.56, 27.12, or 40.68 MHz (Table 1) is a well-established method for processing
Juming Tang, T Chow Ting Chan, Yifen Wang   +2 more
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Heating mechanisms in gold nanoparticles at radio frequencies

2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011
Gold nanoparticles are under study as a potentially viable mechanism for hyperthermia tumor treatment in two regimes of the electromagnetic spectrum: laser and radio frequency excitation. Gold nanoparticles, nanorods and nanoshells have been applied with visible laser sources that excite the particles at or near their plasmon resonance frequency, and ...
John A, Pearce, Jason R, Cook
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Radio-frequency heating of a plasma

Canadian Journal of Physics, 1970
If a uniform plasma is surrounded by a heating coil in the presence of a steady axial magnetic field, it is shown that a considerable increase in power absorption may be expected if the operating frequency is chosen to be close to a magneto-acoustic resonance of the plasma column. This effect is due to a very large increase in the oscillating field at
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