Results 101 to 110 of about 32,036 (281)
Numerical investigation of V-groove air-collector performance with changing cover in Bangi, Malaysia
Case Studies in Thermal Engineering, 2018 Air-based solar collectors are the simplest forms of flat plate solar collectors; without complications of introducing water or nanofluids into the process.
Idris Zulkifle +5 more
doaj +1 more source
Conceptual design study of a 5 kilowatt solar dynamic Brayton power system using a dome Fresnel lens solar concentrator [PDF]
The primary project objective was to generate a conceptual design for a nominal 5 kW solar dynamic space power system, which uses a unique, patented, transmittance-optimized, dome-shaped, point-focus Fresnel lens as the optical concentrator.
Mcdanal, A. J. +2 more
core +1 more source
Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3187-3198, June 2026.Purpose Provide the theoretical foundation and the first practical demonstration of spatiotemporal encoding (SPEN) using additional nonlinear gradient hardware. Methods The quadratic phase profile can be generated either by a chirped‐RF pulse combined with a constant gradient or, directly, by a quadratic gradient pulse.
Andreas Holl +8 more
wiley +1 more source
Micro-optic lens for data storage [PDF]
A new type of microlens for data storage applications that has improved off-axis performance is described. The lens consists of a micro Fresnel pattern on a curved substrate. The radius of the substrate is equal to the focal length of the lens.
Erwin, J. Kevin +4 more
core +1 more source
Real-time digital holographic microscopy observable in multi-view and multi-resolution
, 2010 We propose a real-time digital holographic microscopy, that enables simultaneous multiple reconstructed images with arbitrary resolution, depth and positions, using Shifted-Fresnel diffraction instead of Fresnel diffraction.
Ichihashi, Yasuyuki +3 more
core +1 more source
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Intense Global Navigation Satellite System (GNSS) amplitude scintillations usually occur in nighttime at low latitudes due to ionospheric plasma bubble irregularities. During daytime at middle latitudes, previous studies found that the sporadic E (Es) layer could lead to GNSS amplitude scintillations, which however, is relatively weak, for ...
Wenjie Sun +14 more
wiley +1 more source
Simulation of Interference‐Enhanced Raman Amplification for Advanced Microelectronic Applications
physica status solidi (a), Volume 223, Issue 8, 22 April 2026.This work presents an open‐source tool modeling interference‐enhanced Raman intensities in any multilayered structures. Depending on the stack and laser source, constructive interferences can be exploited to improve strain or composition measurement.
D. Monteil +9 more
wiley +1 more source
PhotonicsIn response to the practical demands of high rate, long distance, low cost and miniaturized equipment for underwater wireless communication, an underwater wireless optical communication experimental system with Fresnel lenses as optical receiving ...
Ya Zhao +4 more
doaj +1 more source
Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching
Advanced Functional Materials, Volume 36, Issue 31, 16 April 2026.A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey +12 more
wiley +1 more source
Medžiagotyra, 2015 Plastic injection molding is an important field in manufacturing industry because there are many plastic products that produced by injection molding. However, the time and cost required for producing a precision mold are the most troublesome problems ...
Chil-Chyuan KUO KUO, Hsin-You LIAO
doaj +1 more source