Results 11 to 20 of about 2,197,906 (297)

Light scattering and absorption properties of dust particles retrieved from satellite measurements [PDF]

open access: yes, 2008
We use the radiative transfer model and chemistry transport model to improve our retrievals of dust optical properties from satellite measurements. The optical depth and absorbing optical depth of mineral dust can be obtained from our improved retrieval ...
Hu, R-M., Sokhi, R.S.
core   +1 more source

Coupling of Optical Lumped Nanocircuit Elements and Effects of Substrates [PDF]

open access: yes, 2007
We present here a model for the coupling among small nanoparticles excited by an optical electric field in the framework of our optical lumped nanocircuit theory [N. Engheta, A. Salandrino, and A. Alu Phys. Rev. Lett. 95, 095504 (2005)].
Alu, Andrea   +2 more
core   +4 more sources

Two-fluid hydrodynamic model for semiconductors [PDF]

open access: yes, 2018
The hydrodynamic Drude model (HDM) has been successful in describing the optical properties of metallic nanostructures, but for semiconductors where several different kinds of charge carriers are present, an extended theory is required.
Maack, Johan R.   +2 more
core   +3 more sources

The inverse problem in microlensing: from the optical depth to the galaxy models parameters [PDF]

open access: yes, 1998
We present in this paper a simple method to obtain informations on galaxy models parameters using the measured value of the microlensing optical depth. Assuming a 100 percent MACHO's dark halo, we ask the predicted optical depth for a given model to be ...
A.A Marino   +26 more
core   +3 more sources

Optical implementation of the Hopfield model [PDF]

open access: yes, 1985
Optical implementation of content addressable associative memory based on the Hopfield model for neural networks and on the addition of nonlinear iterative feedback to a vector-matrix multiplier is described.
Farhat, Nabil H.   +3 more
core   +2 more sources

Nuclear Transparency to Intermediate-Energy Protons [PDF]

open access: yes, 1996
Nuclear transparency in the (e,e'p) reaction for 135 < Tp < 800 MeV is investigated using the distorted wave approximation. Calculations using density-dependent effective interactions are compared with phenomenological optical potentials.
A. A. Cowley   +89 more
core   +2 more sources

Contribution of the Internal Field to the Anisotropic Optical Reflectance of GaP(110) [PDF]

open access: yes, 1988
This article presents the theory of optical reflection from thin slabs of GaP(110) by means of the discrete dipole model and focusses especially upon the possible implications of this model for the surface induced optical anisotropy. The reflectance of a
Del Sole, R., Wijers, C.M.
core   +3 more sources

Production cross–section and reaction yield calculations for 123-126I isotopes on 123Sb(α,xn) reactions

open access: yesKuwait Journal of Science, 2021
Most of the radioisotopes that used in medical field, like examination and treatment studies, were produced by employing nuclear reactions. Within the process of a nuclear reaction, one of the most important parameter is the cross–section data which help
Hasan ÖZDOĞAN   +2 more
doaj   +1 more source

Optical generative models

open access: yesNature
Abstract Generative models cover various application areas, including image and video synthesis, natural language processing and molecular design, among many others1–11. As digital generative models become larger, scalable inference in a fast and energy-efficient manner becomes a challenge12–14.
Shiqi Chen   +4 more
openaire   +4 more sources

COMPUTER SIMULATION OF GAMMA-RAY DETECTOR BASED ON SCINTILLATION CRYSTALS AND SILICON PHOTOMULTIPLIERS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2018
Subject of Research. The paper considers the principles of realization of the gamma-radiation detector based on a silicon photoelectron multiplier and a scintillation crystal with the use of an optical matching scheme. Method.
Bokatyi I.O.   +5 more
doaj   +1 more source

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