Results 31 to 40 of about 1,942,479 (324)

An optimized fractional fractal photon sieve with two optimum ratios and optimized apodization window values

open access: yesResults in Physics, 2020
An optimized fractional fractal photon sieve (OFFPS) is proposed to generate the tailorable first-order main focus with many subsidiary foci and the low-intensity higher-order diffraction foci.
Tian Xia, Shubo Cheng, Shaohua Tao
doaj   +1 more source

Genotoxicity test of eight natural color additives in the Korean market

open access: yesGenes and Environment, 2022
Background Various natural color additives are preferred by many consumers over synthetic color additives because they are perceived to be safer. However, most do not have sufficient toxicity data for safety assurance.
Byungkyung Do, Hoonjeong Kwon
doaj   +1 more source

Analysis of Chromatic Aberration Effects in Triple-Junction Solar Cells Using Advanced Distributed Models [PDF]

open access: yes, 2011
The consideration of real operating conditions for the design and optimization of a multijunction solar cell receiver-concentrator assembly is indispensable.
Algora del Valle, Carlos   +3 more
core   +2 more sources

A Simulation Study for Typical Design Rule Patterns in 5 nm Logic Process with EUV Photolithographic Process

open access: yesJournal of Microelectronic Manufacturing, 2019
5 nm logic technology node is believed to be the first node that will adopt Extremely Ultra-Violet (EUV) lithography on a large scale. We have done a simulation study for typical 5 nm logic design rule patterns.
Yanli Li, Qiang Wu, Shoumian Chen
doaj   +1 more source

Simulation Based Evaluation of Time Series for Syndromic Surveillance of Cattle in Switzerland

open access: yesFrontiers in Veterinary Science, 2019
Choosing the syndrome time series to monitor in a syndromic surveillance system is not a straight forward process. Defining which syndromes to monitor in order to maximize detection performance has been recently identified as one of the research ...
Céline Faverjon   +3 more
doaj   +1 more source

No increase in radiation-induced chromosome aberration complexity detected by m-FISH after culture in the presence of 5’-bromodeoxyuridine [PDF]

open access: yes, 2006
The thymidine analogue, 5’-bromodeoxyuridine (BrdU), is a known mutagen that is routinely introduced into culture media for subsequent Harlequin stain analysis and determination of cell cycle status.
Anderson   +38 more
core   +1 more source

Effect of Spherical Aberration on the Optical Quality after Implantation of Two Different Aspherical Intraocular Lenses

open access: yesJournal of Ophthalmology, 2017
Purpose. To compare the effect of spherical aberration on optical quality in eyes with two different aspherical intraocular lenses. Methods. 120 eyes of 60 patients underwent phacoemulsification.
Michael Lasta   +3 more
doaj   +1 more source

Generalized resolution for orthogonal arrays [PDF]

open access: yes, 2014
The generalized word length pattern of an orthogonal array allows a ranking of orthogonal arrays in terms of the generalized minimum aberration criterion (Xu and Wu [Ann. Statist. 29 (2001) 1066-1077]).
Grömping, Ulrike, Xu, Hongquan
core   +1 more source

New methodology to measure the dynamics of ocular wave front aberrations during small amplitude changes of accommodation [PDF]

open access: yes, 2007
We present a methodology to measure the systematic changes of aberrations induced by small changes in amplitude of accommodation. We use a method similar the one used in electrophysiology, where a periodic stimulus is presented to the eye and many ...
Arden, G.   +3 more
core   +1 more source

Impact of tear optics on the repeatability of Pentacam AXL wave and iTrace in measuring anterior segment parameters and aberrations

open access: yesIndian Journal of Ophthalmology, 2022
Purpose: To assess impact of tear optics on repeatability of a Scheimpflug device with a Hartmann Shack aberrometer and a ray tracing aberrometer. Methods: One hundred healthy and 100 postrefractive surgery eyes underwent dry eye evaluation including ...
GairikKundu   +6 more
doaj   +1 more source

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