Results 41 to 50 of about 2,132 (158)

Comparison of Partial Coherence Interferometry and Optic Low Coherence Reflectometry for Intraocular Lens Power Calculation in Cataract Patients

open access: yesTürk Oftalmoloji Dergisi, 2014
Objectives: To compare the measurements obtained by partial coherence interferometry (PCI) (AL Scan, Nidek) and optical low coherence reflectometry (OLCR) (Lenstar, Haag-Streit AG) and to evaluate the inter-device differences with respect to deviation ...
Mustafa Doğan   +6 more
doaj   +1 more source

Axial length acquisition success rates and agreement of four optical biometers and one ultrasound biometer in eyes with dense cataracts

open access: yesEye and Vision, 2023
Background To evaluate the axial length acquisition success rates and agreement between various biometric parameters obtained with different biometers in dense cataracts.
Pedro Tañá-Rivero   +4 more
doaj   +1 more source

Can Partial Coherence Interferometry be Used to Determine Retinal Shape?

open access: yesOptometry and Vision Science, 2011
ABSTRACT Purpose. To determine likely errors in estimating retinal shape using partial coherence interferometric instruments when no allowance is made for optical distortion. Methods.
Atchison, David, Charman, W
openaire   +3 more sources

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

open access: yesAdvanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou   +6 more
wiley   +1 more source

Resistance to Overdoping Allows Over 2000 S cm−1 Conductivity in P(g3BTTT) With Anion‐Exchange Doping

open access: yesAdvanced Materials, EarlyView.
Anion‐exchange doping of conjugated polymers is an effective way to achieve high conductivities. Here, we report over 2000 S cm−1 electrical conductivity for doped P(g3BTTT). In addition, we show that P(g3BTTT) sustains exceptionally high doping levels without any drop in the charge mobility.
Basil Hunger   +14 more
wiley   +1 more source

Exceptional Antimodes in Multi‐Drive Cavity Magnonics

open access: yesAdvanced Electronic Materials, EarlyView.
Driven‐dissipative cavity‐magnonics provides a flexible platform for engineering non‐Hermitian physics such as exceptional points. Here, using a four‐port, three‐mode system with controllable microwave interference, antimodes and coherent perfect extinction (CPE) are realized, enabling active tuning to antimode exceptional points.
Mawgan A. Smith   +4 more
wiley   +1 more source

Stability of PEA2PbBr4 Thin‐Film Photodetectors under Thermal and Moisture Stress

open access: yesAdvanced Electronic Materials, EarlyView.
This study investigates the environmental durability of 2D perovskite photodetectors under extreme heat and humidity. While pristine films degrade in harsh environmental conditions, adding a halogen‐bonding agent significantly improves stability. This passivated device maintains stable performance in conditions mimicking space and solar applications ...
Sara Cepić   +3 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Comparison of spectral-domain optical coherence tomography biometry measurements with partial coherence interferometry optical biometry

open access: yesBMC Ophthalmology
Purpose This study aimed to evaluate the agreement and interchangeability between a spectral-domain optical coherence tomography (SD-OCT)-based biometer (REVO FC) and a partial coherence interferometry (PCI) device (AL Scan).
Konuralp Yakar, Gökhan Özgür
doaj   +1 more source

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