Results 111 to 120 of about 19,754 (274)
Neutron optical beam splitter from holographically structured nanoparticle-polymer composites
, 2010 We report a breakthrough in the search for versatile diffractive elements for cold neutrons. Nanoparticles are spatially arranged by holographical means in a photopolymer. These grating structures show remarkably efficient diffraction of cold neutrons up
C. Pruner +17 more
core +1 more source
Journal of the Society for Information Display, EarlyView.A thin Maxwellian‐view VR near‐eye display based on a holographic optical element (HOE) is presented. Integrating the HOE with the display panel eliminates the structural gap, achieving an 8‐mm internal spacing. Accommodation‐independent image sharpness is experimentally verified over a 0‐ to 3.3‐D range, mitigating the vergence–accommodation conflict.
Minseong Kim +2 more
wiley +1 more source
Applied Sciences, 2018 In this paper, we present a method to characterize a complete optical Holographic Data Storage System (HDSS), where we identify the elements that limit the capacity to register and restore the information introduced by means of a Liquid Cristal on ...
Fco. Javier Martínez-Guardiola +6 more
doaj +1 more source
A Hybrid RF Coil for Whole‐Brain Imaging in Non‐Human Primates at 7 T
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Ultra‐high field MRI (≥ 7 T) offers unprecedented potential for mapping non‐human primate (NHP) brain function. However, complex electromagnetic systems are required to meet the challenges of UHF imaging and the mechanical demands of awake NHP studies.
Elias Djaballah +5 more
wiley +1 more source
Method for holographic storage using peristrophic multiplexing [PDF]
, 1994 A method of multiplexing holograms by rotating the material or, equivalently, the recording beams is described. Peristropic (Greek for rotation) multiplexing can be combined with other multiplexing methods to increase the storage density of holographic ...
Curtis, Kevin +2 more
core
The Effect of Print Angulation on the Accuracy and Precision of 3D-Printed Orthodontic Retainers [PDF]
, 2020 Purpose: The aims of this study were: 1) to compare the accuracy and precision of 3- dimensional (3D) printed retainers at various angulations, 2) to evaluate the effect of angulation on printing time and the amount of resin consumed.
Williams, Allison
core +1 more source
Effects of UV‐Thermal Exposure Sequence on the Compressive Performance of FDM‐Printed Polymers
Polymer Engineering &Science, EarlyView.These findings establish aging sequence as a key design parameter for FDM polymers, enabling safer material selection and improved durability of load‐bearing printed components. ABSTRACT Ultraviolet (UV) radiation and elevated temperatures can alter the compressive performance of fused deposition modeled (FDM) polymers, but the combined effects, and ...
Eugene Anachebe +5 more
wiley +1 more source
Photopolymer for Display Holography.
Journal of Photopolymer Science and Technology, 1997 The image system consists of complex monomer of acrylic acid series, highly efficient sensitive to red light initiator, complex increasing sensitivity dye, it belongs to new type of phase holographic recording material of photopolymer. It is characterized by being sensitive to red light, high diffraction efficiency (>90%), high resolving power (>4000 ...
Guang-yong Zhang, He-ling Zhang
openaire +2 more sources
Polymer Engineering &Science, EarlyView.An exposure‐time‐controlled MSLA fabrication strategy enabling filler‐free functionally graded polymers, resulting in up to a 62% reduction in specific wear rate. ABSTRACT Masked stereolithography (MSLA) enables high‐resolution fabrication of photopolymer components; however, the limited tribological performance of neat resins restricts their ...
Muhammet Mevlüt Karaca +2 more
wiley +1 more source
Holographic enhanced remote sensing system [PDF]
The Holographic Enhanced Remote Sensing System (HERSS) consists of three primary subsystems: (1) an Image Acquisition System (IAS); (2) a Digital Image Processing System (DIPS); and (3) a Holographic Generation System (HGS) which multiply exposes a ...
Gaynor, Edwin S. +4 more
core +1 more source