Results 121 to 130 of about 38,857 (309)

Electroencephalogram‐Driven Recognition of Parkinson's Disease Through a Mycelium‐Inspired Memristive Reservoir Computing Circuit

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a bio‐inspired computing framework for Parkinson's disease analog recognition using electroencephalogram signals. Temporally encoded EEG features stimulate a mycelium‐inspired memristive reservoir, where disease‐related patterns emerge through physical spatiotemporal dynamics.
Ioannis K. Chatzipaschalis   +5 more
wiley   +1 more source

Microfluctuations of wavefront aberrations of the eye

open access: yes, 2004
To investigate fluctuations in the wavefront aberrations of the eye and their relation to pulse and respiration frequencies we used a wavefront sensor to measure the dynamics of the Zernike aberrations up to the polynomial fourth radial order ...
Zhu, Mingxia   +2 more
core   +1 more source

Optical Bench Evaluation of the Latest Refractive Enhanced Depth of Focus Intraocular Lens

open access: yesClinical Ophthalmology
Ruediger Schmid,1 Andreas F Borkenstein2 1accuratis, Practice for Refractive Eye Surgery, Ulm, 89073, Germany; 2Borkenstein & Borkenstein, Private Practice at Privatklinik der Kreuzschwestern, Graz, 8010, AustriaCorrespondence: Ruediger Schmid, accuratis,
Schmid R, Borkenstein AF
doaj  

Nanoscale Thermal Transport in Bi2(Te, Se)3 Thermoelectric Material Using Pulsed STEM

open access: yesAdvanced Physics Research, EarlyView.
The pulsed‐STEM technique enables simultaneous acquisition of crystallographic, compositional, and thermal transport information within a single experiment. In anisotropic Bi2(Te, Se)3, phase‐delay imaging visualizes directional heat flow and interfacial resistance at the nanoscale, offering a new approach to understanding and designing thermoelectric ...
Hyunyong Cho   +5 more
wiley   +1 more source

Wavefront analysis and modulation transfer function of three multifocal intraocular lenses

open access: yesIndian Journal of Ophthalmology, 2010
Purpose: To evaluate wavefront performance and modulation transfer function (MTF) in the human eye after the implantation of diffractive or refractive multifocal intraocular lenses (IOLs). Materials and Methods: This was a prospective, interventional,
Santhiago Marcony   +5 more
doaj  

Metalens‐Enabled Double‐Helix Point Spread Function for Multifunctional Imaging

open access: yesAdvanced Physics Research, EarlyView.
A single metalens is employed to generate a double‐helix point spread function (DH‐PSF). At the design wavelength, the PSF rotation angle varies linearly with depth, while the lobe spacing follows an inverse dependence on axial position. At a fixed depth, the lobe spacing further exhibits a linear dependence on wavelength due to dispersion.
Xuanyu Wu   +8 more
wiley   +1 more source

Microfluctuations of Wavefront Aberrations of the Eye

open access: yes, 2005
The human eye suffers various optical aberrations that degrade the retinal image. These aberrations include defocus and astigmatism, as well as the higher order aberrations that also play an important role in our vision.
Zhu, Mingxia
core  

Dissatisfaction After Trifocal IOL Implantation and Its Improvement by Selective Wavefront-Guided LASIK.

open access: yes, 2019
PURPOSE To evaluate a substantially improved wavefront acquisition technique (Peramis; SCHWIND eye-tech-solutions, Kleinostheim, Germany) for selective wavefront-guided aberration correction to improve satisfaction after implantation of trifocal ...
Theo G. Seiler   +7 more
core   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

open access: yesAdvanced Physics Research, EarlyView.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang   +2 more
wiley   +1 more source

Comparison of simulated keratometric changes following wavefront-guided and wavefront-optimized myopic laser-assisted in situ keratomileusis

open access: yes, 2018
Wen-Shin Lee, Edward E MancheDepartment of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, CA, USAPurpose: The aim of the study was to determine and compare the relationship between change in simulated keratometry (K) and degree of ...
Manche EE, Lee WS
core  

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