Results 61 to 70 of about 38,080 (271)

Use of the R-group descriptor for alignment-free QSAR [PDF]

open access: yes, 2005
An R-group descriptor characterises the distribution of some atom-based property, such as elemental type or partial atomic charge, at increasing numbers of bonds distant from the point of substitution on a parent ring system. Application of Partial Least
Gedeck, P.   +4 more
core   +1 more source

Recomposable Layered Metasurfaces for Wavelength‐Multiplexed Optical Encryption via Modular Diffractive Deep Neural Networks

open access: yesAdvanced Functional Materials, EarlyView.
Modular diffractive deep neural network metasurfaces encode and reconstruct holograms across layer combinations and wavelengths, enabling secure, multifunctional operation. Each layer acts independently yet composes jointly, yielding up to m(2N −1) channels for m wavelengths and N layers.
Cherry Park   +4 more
wiley   +1 more source

Superpositions of the Orbital Angular Momentum for Applications in Quantum Experiments [PDF]

open access: yes, 2001
Two different experimental techniques for preparation and analyzing superpositions of the Gaussian and Laguerre-Gassian modes are presented. This is done exploiting an interferometric method on the one hand and using computer generated holograms on the ...
Alipasha Vaziri   +6 more
core   +3 more sources

Hadrons as Holograms [PDF]

open access: yesProceedings of International Workshop on QCD Green’s Functions, Confinement and Phenomenology — PoS(QCD-TNT09), 2010
We review our recent work on four topics in strong-interaction physics from the perspective of the gauge/gravity correspondence. In particular, we discuss (i) the construction of the ``metric soft wall'' dual for holographic QCD which reproduces the observed linear square-mass trajectories of radially and orbitally excited (light-quark) hadrons, (ii ...
openaire   +2 more sources

Novel Functional Materials via 3D Printing by Vat Photopolymerization

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov   +3 more
wiley   +1 more source

Digital 3D Hologram Generation Using Spatial and Elevation Information

open access: yesApplied Sciences
The evolution of cartography poses challenges in representing three-dimensional terrain accurately on traditional two-dimensional maps. Providing an accurate 3D view of the area, coupled with essential geographic information, is vital for rapid and ...
Jumamurod Farhod Ugli Aralov   +5 more
doaj   +1 more source

Diseño de un dispositivo compacto para generar y testear vórtices ópticos [PDF]

open access: yes, 2017
Presentamos un diseño compacto para generar y testear diferentes vórtices ópticos con momento angular orbital (OAM). El diseño consiste en una máscara que contiene un holograma binario y un pinhole.
Capeluto, Maria Gabriela   +3 more
core   +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

Atom-optics hologram in the time domain

open access: yes, 2000
The temporal evolution of an atomic wave packet interacting with object and reference electromagnetic waves is investigated beyond the weak perturbation of the initial state.
A. Aspect   +42 more
core   +1 more source

Modulated-grating hologram [PDF]

open access: yesApplied Optics, 1977
By means of a multiple-exposure holographic recording method, a phase-and-amplitude, off-axis hologram, which we call a modulated-grating hologram, has been synthesized from three computer-generated transmission masks. Each mask controls one fixed-phase component of the complex hologram transmittance. The basic grating is generated optically, relieving
openaire   +2 more sources

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