Results 91 to 100 of about 323,650 (368)
Clinical Ophthalmology, 2023 Jun Zhang, Li Zheng, Chenyao Zheng, Peihong Sun Department of Ophthalmology, Hangzhou MSK Eye Hospital, Hangzhou, People’s Republic of ChinaCorrespondence: Jun Zhang, Email zhangjun@mskyk.onaliyun.comPurpose: This study was designed to compare the ...
Zhang J, Zheng L, Zheng C, Sun P
doaj
Advanced Engineering Materials, EarlyView.Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek +7 more
wiley +1 more source
Negative refraction and Negative refractive index in an optical uniaxial absorbent medium [PDF]
arXiv, 2009 This work demonstrates the existence of both negative refraction and a negative refractive index in an optical uniaxial absorbent medium that can be characterized by ordinary and extraordinary refractive indices. Negative refraction occurs in any absorbent uniaxial medium if the real part of the extraordinary index is less than its imaginary part.
arxiv
Progress in development of silica aerogel for particle- and nuclear-physics experiments at J-PARC
, 2014 This study presents the advancement in hydrophobic silica aerogel development for use as Cherenkov radiators and muonium production targets. These devices are scheduled for use in several particle- and nuclear-physics experiments that are planned in the ...
Kawai, Hideyuki, Tabata, Makoto
core +1 more source
Introduction to “Refraction” [PDF]
Refract: An Open Access Visual Studies Journal, 2018 Refraction. The word evokes notions of light, optics, wave transmission, energy, and oblique angles. It is used in the field of physics to refer to the way a wave changes direction upon contact with a new medium through which it is transmitted. For instance, when sound waves hit the surface of water, their frequency changes—you may have experienced ...
openaire +3 more sources
Adjustable Plasmonic Core–Shell Nanoparticles for Personalized Color Vision Correction
Advanced Engineering Materials, EarlyView.This study introduces a personalized solution for correcting color vision deficiency (CVD) by embedding tunable core‐shell metal nanoparticles—a common nanotechnology—into contact lenses. By customizing the nanoparticles’ optical properties to filter specific wavelengths, these lenses address individual visual impairments, enhancing color ...
Hyeonah Lee +4 more
wiley +1 more source
Indian Journal of Ophthalmology, 2020 Purpose: Barrett Universal II (BU-II) is considered as one of the most accurate intraocular lens (IOL) power calculation formulas; however, there is no literature studying the same in Indian population.
Nikhil Kuthirummal +6 more
doaj +1 more source
Nonlinear Negative Refraction by Difference Frequency Generation
, 2015 Negative refraction has attracted much interest for its promising capability in imaging applications. Such an effect can be implemented by negative index meta-materials, however, which are usually accompanied by high loss and demanding fabrication ...
Cao, Jianjun +3 more
core +1 more source
High‐Entropy Ti, Zr, Hf, Ta Multiphase Diboride with Deformation Resistance up to 2000 °C
Advanced Engineering Materials, EarlyView.Ceramics are brittle and strength decreases with temperature. The multiphase high‐entropy (Ti0.25Ta0.25Hf0.25Zr0.25)B2 with heterogeneity at the nano‐ and microscale demonstrates deformation resistance up to 2000 °C, with maximum bending strength at 1800 °C.
Petre Badica +3 more
wiley +1 more source
From Nature to Engineering: Mortar Volume and Interfacial Mechanics in Bioinspired Ceramics
Advanced Engineering Materials, EarlyView.Inspired by natural armors like nacre, this study explores how varying the volume fraction of the soft mortar layer impacts the interfacial strength and toughness of bioinspired ceramics. Experimental and computational analysis reveals that higher mortar volumes increase energy dissipation but reduce interfacial stiffness, offering insights for ...
Ehsan Azad +4 more
wiley +1 more source