Results 241 to 250 of about 10,676,082 (292)
On energy transfer between linear and nonlinear oscillators
Journal of Sound and Vibration, 2008 In this paper energy transfer in a dissipative mechanical system is analysed. Such system is composed of a linear and a nonlinear oscillator with a nonlinearizable cubic stiffness. Depending on initial conditions, we find energy transfer either from linear to nonlinear oscillator (energy pumping) or from nonlinear to linear.
Horta Dantas, Marcio Jose +1 more
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On the revised concept of linear energy transfer
Radiation and Environmental Biophysics, 1995The quantities linear energy transfer or restricted linear energy transfer are utilized in calculations that link absorbed dose to the fluence distribution of a radiation field. The computations provide approximations to absorbed dose in terms of the intermediate quantity cema or reduced cema.
J, Chen, A M, Kellerer, H H, Rossi
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Linear energy transfer of proton clusters
Physics in Medicine and Biology, 2011In conventional particle accelerators, protons are produced in long pulses, in which the average inter-proton distance is in the order of tens of centimeters or more. Therefore, the radiobiology of conventionally accelerated protons is primarily governed by the interaction of a single proton with the cell.
E, Fourkal, I, Velchev, C-M, Ma, J, Fan
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Dependence of the Nucleoside Effect on Linear Energy Transfer
International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1979L929 cells were irradiated by cyclotron-produced neutrons and by 14.8 MeV monoenergetic neutrons. For comparison cells were also irradiated by 60Co gamma rays. Following irradiation cells were treated by an equimolar solution of deoxyribonucleosides, and the effect on cell survival measured.
A, Ferle-Vidović +4 more
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Energy Transfer in a Linear Turbulence Model
Volume 6: 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, 2018Energy transfer is present in many natural and engineering systems which include different scales. It is important to study the energy cascade (which refers to the energy transfer among the different scales) of such systems. A well-known example is turbulent flow in which the kinetic energy of large vortices is transferred to smaller ones.
Bendegúz Dezső Bak +1 more
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Linear effects of the energy transfer in gases
Journal of Engineering Physics and Thermophysics, 1996The authors discuss the linear effects of energy transfer in a gas that can attain a steady state and the linear similarity theory based on geometric transformations preserving the distance between points.
T. N. Abramenko +3 more
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Passive spectrometry of linear energy transfer: development and use
Radiation Protection Dosimetry, 2004A linear energy transfer (LET) spectrometer based on the evaluation of particle track parameters in a chemically etched polyallyldiglycolcarbonate (PADC) track detector has been developed at our laboratory. It permits us to determine LET spectra between 10 and 700 keV microm(-1) in tissues. The LET spectra obtained permit us to calculate total dose and
F, Spurný +2 more
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Absorbed Dose and Linear Energy Transfer in Radiation Experiments
Radiology, 1959It is important in most radiation experiments to have both a quantitative measure of the amount of radiation involved, and a qualitative description of the radiation which uniquely defines its significant properties. The required quantitative measure is the absorbed dose, which is the amount of energy absorbed per unit mass of the irradiated material ...
M, DANZKER, N D, KESSARIS, J S, LAUGHLIN
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Controlling energy and charge transfer in linear chlorophyll dimers
Chemical Communications, 2007A series of linkers constructed from combinations of phenyl and ethynyl groups is shown to permit ultrafast energy transfer between two chlorophylls, while allowing control over radical cation migration between them.
Richard F, Kelley +3 more
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Fluorescent resonant excitation energy transfer in linear polyenes
The Journal of Chemical Physics, 2010We have studied the dynamics of excitation transfer between two conjugated polyene molecules whose intermolecular separation is comparable to the molecular dimensions. We have employed a correlated electron model that includes both the charge-charge, charge-bond, and bond-bond intermolecular electron repulsion integrals.
Das, Mousumi +1 more
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