Results 51 to 60 of about 31,877 (296)

Scalar Field Models of Barrow Holographic Dark Energy in f(R,T) Gravity

open access: yesUniverse, 2022
This research study investigates Barrow holographic dark energy with an energy density of ρΛ=CH2−Δ by considering the Hubble horizon as the IR cut-off in the f(R,T) gravity framework. We employ Barrow holographic dark energy to obtain the equation of the
Umesh Kumar Sharma   +2 more
doaj   +1 more source

Random phase-free kinoform for large objects

open access: yes, 2015
We propose a random phase-free kinoform for large objects. When not using the random phase in kinoform calculation, the reconstructed images from the kinoform are heavy degraded, like edge-only preserved images. In addition, the kinoform cannot record an
Daisuke Hiyama   +10 more
core   +1 more source

Strain‐Activated Photo‐Dehalogenation Unlocks Low‐Energy One and Two‐Photon 3D Microfabrication

open access: yesAdvanced Functional Materials, EarlyView.
5,14‐NMI‐Cz acts, conversely to its 7,10‐NMI‐Cz(7,10‐'dibromo‐2‐(2,6‐diisopropylphenyl)‐1H‐benzo[lmn]carbazolo[9,1‐bc][2,8]phenanthroline‐1,3(2H)‐dione) counterpart, as modular photoinitiator with panchromatic photoactivity, featuring a weak C–Br bond from geometric strain for efficient Type I & II initiation. These studies demonstrate applicability of
Kacper Piskorz   +10 more
wiley   +1 more source

Color liquid crystal grating based color holographic 3D display system with large viewing angle

open access: yesLight: Science & Applications
Holographic 3D display is highly desirable for numerous applications ranging from medical treatments to military affairs. However, it is challenging to simultaneously achieve large viewing angle and high-fidelity color reconstruction due to the ...
Di Wang   +8 more
doaj   +1 more source

3D‐Printed Multidimensional Bionic Mg‐MC/PLGA Composite for Tailored Repair of Segmental Long Bone Defects

open access: yesAdvanced Healthcare Materials, EarlyView.
This study develops 3D‐printed Mg‐MC/PLGA scaffolds with varying Mg concentrations (0–20%). The 5% Mg scaffold shows optimal cytocompatibility, osteogenic activity in vitro, and significantly enhances bone regeneration in rabbits, improving bone volume and mechanical strength.
Shihang Liu   +9 more
wiley   +1 more source

Visual Perception and Holographic Displays [PDF]

open access: yesJournal of Physics: Conference Series, 2013
Holographic displays have the potential to reproduce the natural parallax and focusing affordances of real scenes. Although holographic displays are still far from maturity, no other display technologies have the potential to reproduce these affordances as accurately.
James Barabas, V. Michael Bove
openaire   +1 more source

3D Printing Strategies for Bioengineering Human Cornea

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent progress in 3D bioprinting strategies for engineering human corneas. Key aspects include the replication of corneal transparency, curvature, and biomechanical properties, alongside innovations in recent advancements in 3D printing methods, which benefit in overcoming current challenges.
Yunong Yuan   +4 more
wiley   +1 more source

Curved Holographic Augmented Reality Near-Eye Display System Based on Freeform Holographic Optical Element with Extended Field of View

open access: yesPhotonics
At present, most near-eye display devices adopt flat substrates, which have problems such as limited field of view (FOV) and bulky shape, while the curved structure is expected to expand the FOV with appropriate volume. In this paper, we propose a curved
Hong Xu, Yuan Xu, Changyu Wang, Juan Liu
doaj   +1 more source

Laser Doppler holographic microscopy in transmission: application to fish embryo imaging

open access: yes, 2014
We have extended Laser Doppler holographic microscopy to transmission geometry. The technique is validated with living fish embryos imaged by a modified upright bio-microcope.
Alexandre, Daniel   +2 more
core   +3 more sources

Advances in Photonic Materials and Integrated Devices for Smart and Digital Healthcare: Bridging the Gap Between Materials and Systems

open access: yesAdvanced Materials, EarlyView.
This article summarizes significant technological advancements in materials, photonic devices, and bio‐interfaced systems, which demonstrate successful applications for impacting human healthcare via improved therapies, advanced diagnostics, and on‐skin health monitoring.
Seunghyeb Ban   +5 more
wiley   +1 more source

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