Results 111 to 120 of about 655,925 (308)

Solar Photocatalytic Degradation of Azo Dye in Aqueous TiO2 Suspension Assisted by Fresnel Lens

open access: yesInternational Journal of Photoenergy, 2012
Solar TiO2 photocatalytic process assisted by a Fresnel lens was investigated for treating an azo dye wastewater of Acid Orange 10 (AO10). Response surface methodology (RSM) was employed to assess the effect of critical process parameters (including ...
Wen-Shiuh Kuo, Wen-Yu Chen
doaj   +1 more source

Defocused illumination with beam‐shaping condenser for uniform wide‐field X‐ray imaging

open access: yesJournal of Synchrotron Radiation, EarlyView.
A defocused illumination method based on a beam‐shaping condenser to suppress fringe artifacts arising from rectangular aperture diffraction and sub‐grating interference is developed, providing an effective and practical approach for achieving wide‐field and uniform illumination in X‐ray microscopy.The beam‐shaping condenser (BSC) has become a key ...
Kuanqiang Zhang   +12 more
wiley   +1 more source

Revisiting PSF models: Unifying framework and high‐performance implementation

open access: yesJournal of Microscopy, EarlyView.
Abstract Localisation microscopy often relies on detailed models of point‐spread functions. For applications such as deconvolution or PSF engineering, accurate models for light propagation in imaging systems with a high numerical aperture are required. Different models have been proposed based on 2D Fourier transforms or 1D Bessel integrals.
Yan Liu   +7 more
wiley   +1 more source

Highly Selective Toward HER or CO2RR by Regulating Cu Single and Dual Atoms on g‐C3N4

open access: yesAdvanced Functional Materials, Volume 36, Issue 10, 2 February 2026.
This systematic study provides insights into the design of electrocatalysts for hydrogen evolution reaction (HER) and carbon dioxide reduction (CO2RR). It serves as a useful guide for tuning catalyst architecture toward efficient multifunctional performance by varying synthetic parameters, demonstrating the impact of copper (Cu) species ranging from ...
Wan‐Ting Chen   +9 more
wiley   +1 more source

Numerical investigation of V-groove air-collector performance with changing cover in Bangi, Malaysia

open access: yesCase 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

Phase Topology Stability of an Optical Vortex via an Electrically Controlled Twist‐Planar Oriented Liquid Crystal Fresnel Lens

open access: yesAdvanced Optical Materials, Volume 14, Issue 5, 2 February 2026.
A simple and efficient method for determining the stability of optical vortices via Fourier transform using a conventional spherical lens is presented. The theoretical and experimental results demonstrate a practical approach to directly and unambiguously measure the magnitude and sign of the topological charge of a beam without altering an ...
Elena Melnikova   +5 more
wiley   +1 more source

Conceptual design study of a 5 kilowatt solar dynamic Brayton power system using a dome Fresnel lens solar concentrator [PDF]

open access: yes
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

Design, characterization, and fabrication of solar-retroreflective cool-wall materials [PDF]

open access: yes, 2020
Raising urban albedo increases the fraction of incident sunlight returned to outer space, cooling cities and their buildings. We evaluated the angular distribution of solar radiation incident on exterior walls in 17 U S.
Berdahl, P   +5 more
core  

Optically‐Coupled X‐Ray Computed Laminography System for High‐Speed Inspection of Lithium‐Ion Batteries

open access: yesAdvanced Science, Volume 13, Issue 7, 3 February 2026.
This study presents an optically coupled X‐ray computed laminography system for high‐speed inspection of lithium‐ion batteries. A scintillator serving as a virtual detector decouples spatial resolution from the X‐ray focal spot size, enabling defect detection even with large‐spot, high‐power X‐ray tubes.
Jaeyoung Im   +4 more
wiley   +1 more source

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