Results 21 to 30 of about 894,133 (348)

Measurements of Antenna Surface for a Millimeter-Wave Space Radio Telescope II; Metal Mesh Surface for Large Deployable Reflector [PDF]

open access: yes, 2012
Large deployable antennas with a mesh surface woven by fine metal wires are an important technology for communications satellites and space radio telescopes.
Kamegai, Kazuhisa, Tsuboi, Masato
core   +1 more source

Intensity Distribution of Waves Transmitted Through a Multiple Scattering Medium [PDF]

open access: yes, 1994
The distributions of the angular transmission coefficient and of the total transmission are calculated for multiple scattered waves. The calculation is based on a mapping to the distribution of eigenvalues of the transmission matrix.
A. D. Stone   +15 more
core   +4 more sources

A study of disordered systems with gain: Stochastic Amplification [PDF]

open access: yes, 2000
A study of statistics of transmission and reflection from a random medium with stochastic amplification as opposed to coherent amplification is presented.
Jayannavar, A. M., Joshi, Sandeep K.
core   +2 more sources

Hydroelastic Response to the Effect of Current Loads on Floating Flexible Offshore Platform

open access: yesJournal of Marine Science and Engineering, 2023
An analytical model of a current load’s interaction with a moored floating flexible structure based on the Timoshenko–Mindlin beam theory is developed under the assumption of small-amplitude wave theory and the structural response.
Pouria Amouzadrad   +2 more
doaj   +1 more source

Investigation of nonlinear absorption processes with femtosecond light pulses in lithium niobate crystals [PDF]

open access: yes, 2005
The propagation of high-power femtosecond light pulses in lithium niobate crystals (LiNbO3) is investigated experimentally and theoretically in collinear pump-probe transmission experiments.
Beyer, O.   +5 more
core   +1 more source

Thermal mode of a room with integrated regulation of cooling systems

open access: yesMagazine of Civil Engineering, 2021
An air-conditioned room with automatic regulation of the climate systems serving it using complex control algorithms is one of the most difficult objects for calculating non-stationary thermal regime, so to date, this method is insufficiently studied. At
Oleg Samarin
doaj   +1 more source

Low Momentum Scattering in the Dirac Equation [PDF]

open access: yes, 2001
It is shown that the amplitude for reflection of a Dirac particle with arbitrarily low momentum incident on a potential of finite range is -1 and hence the transmission coefficient T=0 in general. If however the potential supports a half-bound state at k=
  +17 more
core   +2 more sources

Estimation of S-Parameters and Dielectric Permittivity of Polycor and GaAs Samples Using a Vector Network Analyzer

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2023
To study the S-parameters and dielectric permittivity of polycor and GaAs samples, a vector network analyzer R4-MWM-118 with a special measuring cell and a modified Nicholson–Ross–Weir method were used.
D. A. Kondrashov   +4 more
doaj   +1 more source

Numerical simulation of transmission coefficient using c-number Langevin equation [PDF]

open access: yes, 2003
We numerically implement the reactive flux formalism on the basis of a recently proposed c-number Langevin equation [Barik \textit{et al}, J. Chem. Phys. {\bf 119}, 680 (2003); Banerjee \textit{et al}, Phys. Rev.
Bag, Bidhan Chandra   +2 more
core   +2 more sources

Mathematical Model of a Square Waveguide Polarizer with Diaphragms

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021
The development of new mathematical model for guide polarization converter with diaphragms was carried out in the research by the method of wave matrices.
Andrew Bulashenko   +2 more
doaj   +1 more source

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