Results 81 to 90 of about 202,416 (340)

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

open access: yesAdvanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng   +9 more
wiley   +1 more source

Effect of refractive error on temperament and character properties

open access: yesInternational Journal of Ophthalmology, 2015
AIM: To determine the effect of refractive error on temperament and character properties using Cloninger’s psychobiological model of personality. METHODS: Using the Temperament and Character Inventory (TCI), the temperament and character profiles of 41
Emine Kalkan Akcay   +7 more
doaj   +1 more source

Prevalence and causes of blindness and visual impairment in Muyuka: a rural health district in South West Province, Cameroon.

open access: yes, 2006
AIM: To estimate the prevalence and causes of blindness and visual impairment in the population aged 40 years and over in Muyuka, a rural district in the South West Province of Cameroon.
Befidi-Mengue, R   +4 more
core   +2 more sources

Prevalence of refractive error among school-aged children in Sylhet division of Bangladesh

open access: yesDiscover Public Health
Background According to recent statistics from WHO, 150 million people globally have visual impairments caused by uncorrected refractive errors. This study aimed to estimate the prevalence rate of refractive error in Bangladesh's urban, rural, and ...
Enayet Hussain   +4 more
doaj   +1 more source

Ophthalmic disorders among students of School for the Deaf [PDF]

open access: yes, 2012
Aim: This study aimed at determining the prevalence and pattern of ophthalmic disorders amongstudents of School for the Deaf, Akure, Ondo State, Nigeria.Methodology: This is a cross sectional descriptive study was conducted in October, 2011 aspart of ...
O, Adeniji A   +2 more
core   +1 more source

Crack‐Growing Interlayer Design for Deep Crack Propagation and Ultrahigh Sensitivity Strain Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A crack‐growing semi‐cured polyimide interlayer enabling deep cracks for ultrahigh sensitivity in low‐strain regimes is presented. The sensor achieves a gauge factor of 100 000 at 2% strain and detects subtle deformations such as nasal breathing, highlighting potential for minimally obstructive biomedical and micromechanical sensing applications ...
Minho Kim   +11 more
wiley   +1 more source

Prediction for Cycloplegic Refractive Error in Chinese School Students: Model Development and Validation

open access: gold, 2022
Jianyong Wang   +15 more
openalex   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

Refractive error among commercial drivers

open access: yesIndian Journal of Ophthalmology, 2023
Samir Sutar, Pradeep Agarwal
doaj   +1 more source

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