Results 111 to 120 of about 607,924 (298)

Sonication‐Assisted Palladium Nanogaps in a Capacitive Structure: A Tunable and Reliable Solution for Sensitive Hydrogen Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a capacitive hydrogen sensor with a simple structure and process. Sonication‐induced Pd nanogaps modulate the effective electrode area in response to hydrogen concentration, resulting in capacitance changes within a range predefined by physical parameters.
Sang‐kil Lee   +9 more
wiley   +1 more source

Comprehensive Primary Eye Care: A Comparison Between an In-Person Eye Exam and a Tele-Eye Care Exam

open access: yesClinical Optometry
Nicolas Blais,1,* Benoit Tousignant,1,2,* Jean-Marie Hanssens1,* 1School of Optometry, Université de Montréal, Montréal, Québec, Canada; 2Department of Social and Preventive Medicine School of Public Health, Université de Montréal, Montréal ...
Blais N, Tousignant B, Hanssens JM
doaj  

Evaluation of Portable, Low-Cost Autorefractor in School Students with Limited Eye Care Access in Northeastern Brazil

open access: yesVision
This study compared the refraction measurements of the ClickCheck™ device (CCD), Topcon KR-8000, and subjective clinical refractometry (SCR) in Brazilian public school students with limited access to eye care. Eighty-seven eyes of healthy students aged 7
Francisco Carlos de Castro Neto   +5 more
doaj   +1 more source

Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures

open access: yesAdvanced Functional Materials, EarlyView.
3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina   +11 more
wiley   +1 more source

Dry eye disease ranking among common reasons for seeking eye care in a large US claims database

open access: yesClinical Ophthalmology, 2019
John L Bradley,1,2 Ipek Özer Stillman,3 Irina Pivneva,4 Annie Guerin,4 Amber M Evans,5 Reza Dana6 1Naval Medical Research Unit Dayton, Vision Science Lab, Wright Patterson AFB, OH, USA; 2University of Pikeville, Kentucky College of Optometry ...
Bradley JL   +5 more
doaj  

A Transparent Semicrystalline Polymer Used in Thermally Responsive Smart Window Application

open access: yesAdvanced Functional Materials, EarlyView.
A thermally responsive smart window is fabricated based on a transparent semicrystalline polymer via copolymerizing stearyl acrylate and ethoxylated trimethylolpropane triacrylate. The high transparency is achieved by restricting the crystal domain to nanometer size via ultraviolet curing at a high temperature.
Jiacheng Fan   +12 more
wiley   +1 more source

Scalable Perovskite Quantum Dot Glass Nanocomposites for High‐Efficiency Luminescent Solar Concentrators

open access: yesAdvanced Functional Materials, EarlyView.
This study evaluates the scalability of PQD GNC‐based LSCs for BIPV applications. Experimental data and Monte Carlo simulations predict performance up to 1 m2, achieving a peak power conversion efficiency of 3.17%. The results confirm the viability of these LSCs for energy‐efficient building applications.
Emre İlter   +6 more
wiley   +1 more source

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

open access: yesAdvanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng   +7 more
wiley   +1 more source

Direct Laser Ablation of 2D Material Films for Fabricating Multi‐Functional Flexible and Transparent Devices

open access: yesAdvanced Functional Materials, EarlyView.
A scalable method for direct laser patterning of 2D films on transparent substrates like polycarbonate and glass is presented. This technique eliminates the need for photolithography and solvents, enabling the fabrication of functional devices like strain gauges, supercapacitors, and photodetector arrays.
Yigit Sozen   +3 more
wiley   +1 more source

Double Helical Plasmonic Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin   +7 more
wiley   +1 more source

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