Results 131 to 140 of about 202,416 (340)

The Prevalence of Refractive Errors and Risk Factors for the Formation of Myopia in Schoolchildren in the City of Astana

open access: bronze, 2023
Zeynet Akhmedyanova   +5 more
openalex   +2 more sources

Programmable In‐Situ Interactions Between Resins and Photopolymerized Structures for Seamlessly Integrated Optical Manufacturing of Microlenses

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a dynamic interaction between liquid resins and photopolymerized structures enabled by an in situ light‐writing setup. By controlling a three‐phase interface through localized photopolymerization, which provides physical confinement for the remaining uncured resin regions, the approach establishes a programmable pathway that ...
Kibeom Kim   +3 more
wiley   +1 more source

The Video Head Impulse Test and the Influence of Daily Use of Spectacles to Correct a Refractive Error [PDF]

open access: gold, 2018
T. S. van Dooren   +4 more
openalex   +1 more source

Refractive Error of Students (12–15-years-old) in Northwestern Mexico

open access: diamond, 2023
Efrain Romo-García   +5 more
openalex   +1 more source

External Reflection From Two‐Photon Laser‐Printed Micromirrors Enables Photomechanical Actuation at a 90° Incident Angle

open access: yesAdvanced Functional Materials, EarlyView.
Light reflectance increases along incidence angle and transmittance significantly drops around 90‐degree incidence angle. Here, we report two‐photon laser printed micro mirrors that redirect the skimming light beam into normal light absorption. Using this technique, light‐driven micro walkers and grippers are demonstrated by using grazing incidence ...
Leilei Song, Jianfeng Yang, Hao Zeng
wiley   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

Awareness and Attitude toward Refractive Error Correction Methods: A Population Based Study in Mashhad [PDF]

open access: yesPatient Safety and Quality Improvement Journal, 2013
Objectives: This study was designed to determine the level of awareness and attitude toward refractive correction methods in a randomly selected population in Mashhad, Iran.
Saber Moghaddam Ranjbar AK   +2 more
doaj  

Two‐Way Shape Memory Alloy and Polymer Composite Hybrid Smart Actuator With High Speed, Accuracy, and Reversible Deformation

open access: yesAdvanced Functional Materials, EarlyView.
Tailored thermo‐mechanical properties of shape memory polymer composites enable large reversible deformation as well as high actuation speed. Moreover, a structural design with curvature in the transverse direction achieves sub‐second actuation on heating and a larger recovery ratio on cooling. Finally, these newly developed smart two‐way actuators can
Dajeong Kang   +6 more
wiley   +1 more source

Patterns of refractive errors in albino patients in pediatric age group.

open access: diamond, 2023
Mahnoor Qayyum   +5 more
openalex   +2 more sources

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