نتایج جستجو برای: uv led

تعداد نتایج: 280537  

Journal: :Chemical Engineering Journal 2023

This study investigates and provides a solution for optimizing the photocatalytic treatment of toxic gases based on use TiO2 media deposited luminous textiles. The target was cyclohexane referent type A gas filtration tests. supports were characterized by scanning electron microscopy. Then, experiments conducted batch reactor showed that TiO2-coated optical fiber (in situ illumination configura...

Journal: :Acta Alimentaria 2021

Abstract Tomato is rich in different bioactive compounds, especially the carotenoid lycopene, which intake associated with various health benefits. Post-harvest use of ultraviolet light (UV) and light-emitting diode (LED) has been shown to increase concentration tomato compounds. The aim this study was evaluate effect (A C) red-blue LED on carotenoids during a 7-days storage trial mature green ...

Journal: :Chemical communications 2012
Yutian Shao Chao Yang Weijun Gui Yang Liu Wujiong Xia

Irradiation of terminal aromatic γ,δ-epoxy ketones with a 450 W UV lamp led to Norrish type II cyclization/semi-pinacol rearrangement cascade reaction which formed the benzocyclobutanones containing a full-carbon quaternary center, whereas irradiation of substituted aromatic γ,δ-epoxy ketones led to the indanones through a photochemical epoxy rearrangement and 1,5-biradicals cyclization tandem ...

Journal: :Journal of radiation research 2005
Zheng Chen Jun Nomura Toshikazu Suzuki Nobuo Suzuki

One of the most intriguing biological subjects is cell-surface molecules that regulate the susceptibility of human cells to cell-killing effects after irradiation with far-ultraviolet light (UV, principally 254 nm wavelength). Human RSa cells have unusual sensitivity to UV-induced cell-killing. We searched for molecules on the cell-surface of RSa cells that were present in different amounts as ...

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