Results 61 to 70 of about 212,491 (313)
Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components
Advanced Engineering Materials, EarlyView.This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern +3 more
wiley +1 more source
The uncorrected refractive error challenge
Community Eye Health Journal, 2016 Refractive error affects people of all ages, socio-economic status and ethnic groups. The most recent statistics estimate that, worldwide, 32.4 million people are blind and 191 million people have vision impairment.
Kovin Naidoo +2 more
doaj
Predicting the onset of myopia in children: results from the CLEERE study
BMC Ophthalmology, 2021 Research often attempts to identify risk factors associated with prevalent disease or that change the probability of developing disease. These factors may also help in predicting which individuals may go on to develop the condition of interest.
Donald O. Mutti +2 more
doaj +1 more source
Diagnostics, 2021 We investigated longitudinal changes in the spherical equivalent refractive error (SE) in hyperopic children with or without refractive accommodative esotropia (AccET).
Ji Eun Song +5 more
doaj +1 more source
Analytical ray-tracing in planetary atmospheres [PDF]
A&A 624, A41 (2019), 2019 Ground-based astro-geodetic observations and atmospheric occultations, are two examples of observational techniques requiring a scrutiny analysis of atmospheric refraction. In both cases, the measured changes in observables are geometrically related to changes in the photon path and the light time of the received electromagnetic signal.
arxiv +1 more source
Advanced Engineering Materials, EarlyView.This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld +9 more
wiley +1 more source
Prevalence and risk factors for myopia among school children in Aba, Nigeria
African Vision and Eye Health, 2017 Aim: To study the prevalence of myopia among school children in Aba, Nigeria. Methods: This cross-sectional study was conducted in public and private (primary and secondary) schools.
Uchenna C. Atowa +2 more
doaj +1 more source
Prevalence of Refractive Errors among Medical Students and Identification of Associated Factors
Life and Science, 2021 Objective: To determine the prevalence of refractive errors among medical students and identify associated factors. Study Design: Analytical, cross-sectional study.
Saadia Maqbool +5 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study explores the use of laser‐induced forward transfer in the picosecond regime to create in vitro biomodels. Focusing on hydrodynamics and rheology, it investigates jet dynamics through time‐resolved imaging, optimizing laser fluence, biological ink viscosity, and printing distance to precisely control the volume and location of bioink ...
Lucas Duvert +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Acoustic emissions during direct laser interference patterning are shown to strongly correlate with surface texture depth. By implementing a closed‐loop control system utilizing acoustic feedback, consistent microstructures with uniform depth are achieved despite laser power fluctuations.
Tobias Steege +4 more
wiley +1 more source