Results 31 to 40 of about 54,661 (255)
Study of Heat Flux Density of Dish Solar Cavity Heat Absorber
Energies, 2022 The solar cavity heat absorber is the core component of a solar thermal power generation system; its structure and installation position directly affect the efficiency of the heat absorber.
Haiting Liu +3 more
doaj +1 more source
Sensors, 2023 For the demand of rapid monitoring of pollution gas disorganized emissions in industrial parks, this paper studies the solar fast tracker system of vehicle-mounted SOF-FTIR (Solar Occultation Flux Fourier Transform Infrared Spectroscopy) system, where ...
Yasong Deng +6 more
doaj +1 more source
Al-HilalThis study addresses the limitations of contemporary prayer time instruments, which often require complex calculations, electricity, internet connectivity, or direct exposure to sunlight, by developing a practical, local dial–based tool for community use.
Sartika Sartika +3 more
doaj +1 more source
New Directions for Adult and Continuing Education, EarlyView.ABSTRACT Advancing artificial intelligence (AI) has transformed learning and work, yet higher education and professional development programs have not systematically equipped learners for AI‐prevalent environments. This lack of preparation creates uncertainty regarding control, responsibility, trust, and accountability.
Moon‐Heum Cho, Jerusalem Merkebu
wiley +1 more source
ISPRS International Journal of Geo-Information, 2022 Solar radiation significantly affects many processes on Earth. In situ measurements are demanding and require a dense network of sensors. A suitable alternative solution could be the modelling of potential solar radiation based on a digital elevation ...
Renata Ďuračiová, Filip Pružinec
doaj +1 more source
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source
EPJ Photovoltaics, 2023 I‑V measurements are sensitive to the number and positioning of current and voltage sensing contacts. For busbarless solar cells, measurement setups have been developed using current collection wires and separate voltage sense contacts.
Brinkmann Malte +9 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein +4 more
wiley +1 more source
Microcontroller-Based Sun Path Tracking System [PDF]
Engineering and Technology Journal, 2011 The objective of this paper is to design and construct a solar tracking system based on a microcontroller. The system design depends on some mathematical equations to send three signals to drive circuit to change the position of the solar cell by ...
Nasir Ahmed Filfil +2 more
doaj +1 more source
Derivation of Solar Position Formulae
, 2020 39 pages, 18 figures, 4 code ...
openaire +2 more sources