Results 131 to 140 of about 110,606 (256)

Noncontact optical measurement of lens capsule thickness

open access: yes, 2005
PURPOSE. To measure interspecies thickness differences in the central anterior and posterior capsules of postmortem crystalline lenses, by a technique that maintains the anatomic integrity of the lens. METHODS. Central capsule thickness was measured with
Stephen R Uhlhorn   +4 more
core  

Magnetic‐Field Modulation of Charge Transport in Non‐Fullerene Semiconductors for Enhanced Hydrogen Evolution

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT This study demonstrates that weak magnetic fields (16–40 mT) increase the efficiency of the hydrogen evolution reaction (HER) in electrocatalysts based on non‐fullerene acceptor (NFA) derivatives IT‐4Cl and Y6. Electrochemical measurements reveal that the application of the magnetic field reduces the onset potential and increases the current ...
João Paulo Araujo Souza   +7 more
wiley   +1 more source

The Association of Central corneal thickness with Intra-ocular Pressure and Refractive Error in a Nigerian Population

open access: yes, 2008
The purpose of this study was to determine the variation of central corneal thickness (CCT) with intraocular pressure (IOP) and spherical equivalent refractive error.
Misan Memeh   +3 more
core  

Interplay between corneal oxygenation and swelling for scleral lens–a modelling approach

open access: yesChemical Engineering Journal Advances
In this study, a mathematical model was developed that incorporates a coupling between mass transfer and corneal metabolism to predict corneal oxygenation with scleral lenses.
Ahmed Jarboui   +8 more
doaj   +1 more source

Facet‐Specific PbS Quantum Dot Passivation Using Halide Perovskites for SWIR Photodetectors

open access: yesAdvanced Materials Interfaces, EarlyView.
PbS quantum dots (QDs) are emerging as powerful short‐wave infrared photodetectors, yet the passivation mechanism of large QDs by perovskites ‐ critical for their stability ‐ remains unexplained. Here, we unveil the ligand structure of CH3NH3PbI3 (MAPI)‐passivated 4‐nm PbS QDs using FTIR, XPS, SEM, NMR, and DFT.
L. Paillardet   +13 more
wiley   +1 more source

Comparing methods to estimate the human lens power

open access: yes, 2011
Purpose: To compare accuracies of different methods for calculating human lens power when lens thickness is not available. \ud \ud Methods: Lens power was calculated by four methods.
Marie-José Tassignon   +7 more
core   +1 more source

Xenes for Sustainable Energy: A Roadmap From First‐Principles Design to Practical Deployment

open access: yesAdvanced Materials Interfaces, EarlyView.
Emerging 2D Xenes are advancing from theoretical predictions toward practical energy‐storage and conversion technologies through the integration of first‐principles modelling, experimental synthesis, electrochemical validation, and AI‐assisted materials design, enabling accelerated discovery of high‐performance and sustainable electrochemical systems ...
Onur Karaman, Ceren Karaman
wiley   +1 more source

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