Results 11 to 20 of about 1,013,031 (328)

Algorithmically Optimized Hemispherical Dome as a Secondary Optical Element for the Fresnel Lens Solar Concentrator

open access: yesApplied Sciences, 2019
The significance of this work lies in the development of a novel code-based, detailed, and deterministic geometrical approach that couples the optimization of the Fresnel lens primary optical element (POE) and the dome-shaped secondary optical element ...
Hassan Qandil   +2 more
doaj   +1 more source

Defectoscopic Tests of Smoke Mortar Charges [PDF]

open access: yesProblemy Mechatroniki, 2015
There are presented selected results of defectoscopic tests on smoke charges confined in the metallic containers inserted in the bodies of 98 mm mortar bombs, using Real Time Rentegenoscopy (RTR) and infrared (IR) thermography.
Maciej Miszczak   +2 more
doaj   +1 more source

Optical transmission theory for metal-insulator-metal periodic nanostructures

open access: yesNanophotonics, 2016
A semi-analytical formalism for the optical properties of a metal-insulator-metal periodic nanostructure using coupled-mode theory is presented. This structure consists in a dielectric layer in between two metallic layers with periodic one-dimensional ...
Blanchard-Dionne Andre-Pierre   +1 more
doaj   +1 more source

Stained Glass: An Afterword

open access: yes19, 2020
In the afterword to this issue, Isobel Armstrong reflects on a phenomenology of nineteenth-century stained glass.
Isobel Armstrong
doaj   +2 more sources

Numerical Simulations of Scattering of Light from Two-Dimensional Rough Surfaces Using the Reduced Rayleigh Equation

open access: yesFrontiers in Physics, 2013
A formalism is introduced for the non-perturbative, purely numerical, solution of the reduced Rayleigh equation for the scattering of light from two-dimensional penetrable rough surfaces.
Tor eNordam   +2 more
doaj   +1 more source

Noble Metal Particles Confined in Zeolites: Synthesis, Characterization, and Applications

open access: yesAdvanced Science, 2019
Noble metal nanoparticles or subnanometric particles confined in zeolites, that is, metal@zeolite, represent an important type of functional materials with typical core–shell structure.
Yuchao Chai   +6 more
doaj   +1 more source

Predictive Modeling of Light–Matter Interaction in One Dimension: A Dynamic Deep Learning Approach

open access: yesApplied System Innovation, 2023
The mathematical modeling and the associated numerical simulation of the light–matter interaction (LMI) process are well-known to be quite complicated, particularly for media where several electronic transitions take place under electromagnetic ...
Özüm Emre Aşırım   +2 more
doaj   +1 more source

An ANN-Based Smart Tomographic Reconstructor in a Dynamic Environment

open access: yesSensors, 2012
In astronomy, the light emitted by an object travels through the vacuum of space and then the turbulent atmosphere before arriving at a ground based telescope.
Francisco J. de Cos Juez   +3 more
doaj   +1 more source

An insight into the altered ophthalmic dynamics during the COVID-19 pandemic

open access: yesIndian Journal of Ophthalmology, 2022
Purpose: The objective of this survey-based study was to examine the effects of personal protective measures taken at the level of instrument and surgeon during the pandemic on the optics in ophthalmology.
Jaya Kaushik   +8 more
doaj   +1 more source

Optical-approximation analysis of sidewall-spacing effects on the force between two squares with parallel sidewalls [PDF]

open access: yes, 2007
Using the ray-optics approximation, we analyze the Casimir force in a two dimensional domain formed by two metallic blocks adjacent to parallel metallic sidewalls, which are separated from the blocks by a finite distance h.
Jaffe, Robert L.   +3 more
core   +1 more source

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