Results 1 to 10 of about 213,529 (332)

The Effect of Electronic and Optical Properties on the Kinetic Photocatalytic Model of Methyl Blue Degradation [PDF]

open access: yesMolecules
The photocatalytic activity as a function of effective irradiance, photocatalytic quantum yield and reactant coverage was thoroughly assessed for the proper photoreactor (PhR) selection.
Marco Antonio Alvarez-Amparán   +2 more
doaj   +2 more sources

Low-cost Prototype Pyrgeometer for Atmospheric Radiation Measurements

open access: yesTecnura, 2022
Objective: To design and build an instrument capable of measuring long-wave infrared radiation with elements of the national market that offers an excellent performance in measuring energy in this spectral band.
César Alexander Chacón Cardona   +2 more
doaj   +1 more source

Can exchange transfusion be replaced by double-LED phototherapy?

open access: yesOpen Medicine, 2021
Phototherapy is a conventional treatment for neonatal jaundice and widely considered as a safe procedure. Recent developments in light-emitting diode (LED) phototherapy devices have made more effective treatments possible.
Abe Shinya, Fujioka Kazumichi
doaj   +1 more source

Impact of Structural, Photochemical and Instrumental Effects on Leaf and Canopy Reflectance Variability in the 500–600 nm Range

open access: yesRemote Sensing, 2021
Current rapid technological improvement in optical radiometric instrumentation provides an opportunity to develop innovative measurements protocols where the remote quantification of the plant physiological status can be determined with higher accuracy ...
Adrián Moncholi-Estornell   +5 more
doaj   +1 more source

Light-curing dental resin-based composites: How it works and how you can make it work

open access: yesFrontiers in Dental Medicine, 2023
AimClinicians may become quite familiar with the rapid transformation of composite pastes to rigid solids as a routine phenomenon in operative dentistry. But they may still lack scientific understanding of how and why this happens.
David C. Watts
doaj   +1 more source

Production of Photovoltaic Electricity at Different Sites in Algeria

open access: yesApplied Sciences, 2022
The necessity for further growth in the demand for electricity, particularly in the remote countryside, has been essential to Algeria’s economic and social progress in recent years. The Saharan regions account for around 80% of Algeria’s surface and have
Khadidja Bouziane   +8 more
doaj   +1 more source

Phytosanitary Irradiation [PDF]

open access: yesFoods, 2016
Phytosanitary treatments disinfest traded commodities of potential quarantine pests. Phytosanitary irradiation (PI) treatments use ionizing radiation to accomplish this, and, since their international commercial debut in 2004, the use of this technology has increased by ~10% annually.
Guy J. Hallman, Carl M. Blackburn
openaire   +3 more sources

Enhancing the Tunable Sensitivity of a Near-Ultraviolet to Visible to Near-Infrared Photo Irradiance Sensor Using an Indium Tin Oxide-Aluminum Oxide-Zirconia Aluminum Oxide-Silicon

open access: yesCrystals, 2023
This study focuses on enhancing the tunable sensitivity of a photo irradiance sensor (PIS) operating in the near-ultraviolet to visible to near-infrared (NUV-VIS-NIR) spectrum using an indium tin oxide-aluminum oxide-zirconia aluminum oxide-silicon oxide-
Wen-Ching Hsieh   +4 more
doaj   +1 more source

Design, Construction and Characterization of Sealed Tube Medium Power CO2 Laser System

open access: yesInstruments, 2022
A low-cost medium-power carbon dioxide (CO2) laser system is designed, constructed, and characterized to produce coherent, monochromatic laser radiation in the infrared region. The laser cavity is simulated and designed by using ZEMAX optic studio.
Muddasir Naeem   +3 more
doaj   +1 more source

Influence of Irradiance and Wavelength on the Antioxidant Activity and Carotenoids Accumulation in Muriellopsis sp. Isolated from the Antofagasta Coastal Desert

open access: yesMolecules, 2022
Microalgae are a valuable natural resource for a variety of biocompounds such as carotenoids. The use of different light spectra and irradiance has been considered as a promising option to improve the production of these compounds.
Daniela Diaz-MacAdoo   +2 more
doaj   +1 more source

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