Results 111 to 120 of about 526,651 (246)

Diffractive lens with extended depth of focus and its applications

open access: yes, 2007
Imaging systems with extended depth of focus (EDOF) can minimize focus adjustment to achieve focus free operation. They are used in various applications including imaging, optical coupling and interconnection, etc.
Liu, Zhiqiang
core   +4 more sources

Diffractive

open access: yes, 2007
this paper, new (preliminary) HERMES experimental data on diffractive ...
Diffractive Ae   +3 more
core  

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

Diffractive multifocal lens design using phase retrieval

open access: yes
This study proposed a novel method to design diffractive multifocal lenses using phase retrieval, which was utilized to recover the phase information in imaging.
Jiakai Lyu (18406716)
core   +1 more source

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

open access: yesAdvanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green   +15 more
wiley   +1 more source

The influence of center of gravity and lens mass on rigid lens dynamics [PDF]

open access: yes, 1996
PURPOSE: Center of gravity and lens mass have both been shown to influence rigid lens centration and stability. The purpose of this study was to investigate the relative contributions of these two factors to rigid lens dynamics.
Carney, Leo G.   +4 more
core  

New High‐Tc Charge‐Transfer Multiferroicity in the Quasi‐2D Antiferromagnet CrSbS3

open access: yesAdvanced Science, EarlyView.
ABSTRACT Low‐dimensional magnets, particularly 2D systems, offer a rich platform for realizing unconventional multiferroic mechanisms, especially when multiple polarization channels coexist. In the quasi‐2D antiferromagnet CrSbS3, which crystallizes in the centrosymmetric orthorhombic space group Pnma and orders magnetically at TN ≈ 90 K, two ...
Hung‐Cheng Wu   +17 more
wiley   +1 more source

Sustainable Materials Design With Multi‐Modal Artificial Intelligence

open access: yesAdvanced Science, EarlyView.
Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu   +8 more
wiley   +1 more source

The effect of soft lens lubricants on symptoms and lens dehydration

open access: yes, 1991
In order to establish the efficacy of soft lens lubricants and their mode of action, we conducted a controlled, double-masked, randomized study. Symptoms of dryness as well as lens water content were assessed in 30 symptomatic hydroxyethylmethacrylate ...
Efron, Nathan   +2 more
core  

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