Results 31 to 40 of about 138,992 (294)
Life, 2022 Best-corrected visual acuity often decreases temporarily or permanently after trabeculectomy (TE). The purpose of this study was to compare visual acuity and refractive changes after TE or XEN microstent implantation (XEN) in primary open-angle glaucoma (
Caroline Bormann +6 more
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Partially coherent conical refraction [PDF]
arXiv, 2022 In this paper, we extend the paraxial conical refraction model to the case of the partially coherent light using the unified optical coherence theory. We demonstrate the decomposition of conical refraction correlation functions into well-known conical refraction coherent modes for a Gaussian Schell-model source.
arxiv
Negative refraction and left-handed behavior in two-dimensional photonic crystals [PDF]
Phys. Rev. B 67, 235107 (2003)., 2002 We systematically examine the conditions of obtaining left-handed (LH) behavior in photonic crystals. Detailed studies of the phase and group velocities as well as the phase np and group ng refractive index are given. The existence of negative refraction does not guarantee the existence of negative index of refraction and so LH behavior.
arxiv +1 more source
RBF-Based Camera Model Based on a Ray Constraint to Compensate for Refraction Error
Sensors, 2023 A camera equipped with a transparent shield can be modeled using the pinhole camera model and residual error vectors defined by the difference between the estimated ray from the pinhole camera model and the actual three-dimensional (3D) point.
Jaehyun Kim +4 more
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Accuracy of noncycloplegic refraction performed at school screening camps
Indian Journal of Ophthalmology, 2018 Purpose: The aim of this study was to compare noncycloplegic refraction performed in school camp with that performed in eye clinic in children aged 6–16 years. Methods: A prospective study of children with unaided vision
Rolli Khurana +6 more
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Study on the Polarization Pattern Induced by Wavy Water Surfaces
Remote Sensing, 2023 In nature, the wavy ocean surface is a common polarizer, which can change the polarization state of incident light by refraction and reflection and form a new polarization pattern different from the atmosphere.
Haoyuan Cheng +4 more
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Education Sciences, 2023 Spectroscopy is the basis of many applications in chemistry; however, the basic principles of light, light–matter interaction, and the operation of spectrophotometers are rarely present in chemistry curricula at the high-school level, or they are only ...
Maria Antonietta Carpentieri +3 more
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Refractive Status of Mountain Aborigine Schoolchildren in Southern Taiwan
Kaohsiung Journal of Medical Sciences, 2008 Myopia is an epidemic health problem in Taiwan's schoolchildren. The prevalence of myopia has been increasing yearly, and the average age at which myopia develops has also become younger.
Shiuh-Liang Hsu +5 more
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Przepisywanie Beowulfa: J.R.R. Tolkiena meandry przekładu
Między Oryginałem a Przekładem, 2018 Rewriting Boewulf: J.R.R. Tolkien’s Meandering Translation J.R.R. Tolkien’s works related to translation include both translations and adaptations in the form of pastiche.
Tomasz Markiewka
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Известия высших учебных заведений. Поволжский регион:Технические науки, 2021 Background. This article describes a mathematical model of the acoustic path of the ultrasonic method for measuring distances to a heated vertical plate, developed in the geometrical-acoustics approximation.
A.V. Voronina, S.V. Pavlov
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