Results 41 to 50 of about 574,787 (253)

A critical review of the state of knowledge on factors responsible for the degradation in soils of polyhydroxyalkanoates

Polymer Testing
Plastic pollution in the environment, particularly in soils, has become a major ecological concern due to its persistence and potential risks to ecosystems and human health.
Ludovic Dulac, Mikaël Kedzierski, Stéphane Bruzaud   +2 more
doaj   +1 more source

Kinetics of L-ascorbic acid degradation and non-enzymatic browning development in hot-compressed water

Frontiers in Nutrition, 2023
The effect of reaction conditions, which comprised the reaction temperature (150–190°C), processing time (0.50, 0.75, 1.00, 1.25, 1.50, 2.00, and 2.50 h), pH (5.0, 7.0, and 9.5), and concentration (0.03–0.07 mol/L) of L-ascorbic acid (ASA), on the ...
Liang Feng, Liang Feng, Yan Yang, Yan Yang, Ya-ting Xie, Ya-ting Xie, Shuang-shuang Liu, Shuang-shuang Liu, Xuan Peng, Sheng Hu, Sheng Hu, Ai-nong Yu, Ai-nong Yu   +12 more
doaj   +1 more source

Sonochemical Degradation of Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoate (PFOA) in Landfill Groundwater: Environmental Matrix Effects [PDF]

, 2008
Perfluorinated chemicals such as perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) are environmentally persistent and recalcitrant to most conventional chemical and microbial treatment technologies.
Cheng, Jie, Hoffmann, Michael R., Mader, Brian T., Park, Hyunwoong, Vecitis, Chad D.   +4 more
core   +3 more sources

Degradation kinetics of seven organophosphorus pesticides in milk during yoghurt processing [PDF]

Journal of the Serbian Chemical Society, 2011
Bovine milk spiked with seven organophosphorus pesticides, i.e., dimethoate, fenthion, malathion, methyl parathion, monocrotophos, phorate and trichlorphon, was fermented at 42 °C with commercial directed vat set (DVS) starters to investigate the ...
LI-YING BO, YING-HUA ZHANG, XIN-HUAI ZHAO   +2 more
doaj  

A Degradation Function Consistent with Cocks–Ashby Porosity Kinetics [PDF]

, 2018
The load carrying capacity of ductile materials degrades as a function of porosity, stress state and strain-rate. The effect of these variables on porosity kinetics is captured by the Cocks–Ashby model; however, the Cocks–Ashby model does not account for
Moore, John A.
core   +1 more source

Genetic and Biochemical Characterization of 2-Chloro-5-Nitrophenol Degradation in a Newly Isolated Bacterium, Cupriavidus sp. Strain CNP-8

Frontiers in Microbiology, 2017
Compound 2-chloro-5-nitrophenol (2C5NP) is a typical chlorinated nitroaromatic pollutant. To date, the bacteria with the ability to degrade 2C5NP are rare, and the molecular mechanism of 2C5NP degradation remains unknown.
Jun Min, Weiwei Chen, Jinpei Wang, Xiaoke Hu   +3 more
doaj   +1 more source

Metallic Hydrides I: Hydrogen Storage and Other Gas-Phase Applications [PDF]

, 2002
A brief survey is given of the various classes of metal alloys and compounds that are suitable for hydrogen-storage and energy-conversion applications.
Bowman, Robert C., Jr., Fultz, Brent
core   +1 more source

Styrene photocatalytic degradation reaction kinetics [PDF]

Journal of the Brazilian Chemical Society, 2011
The aqueous styrene photocatalytic degradation reaction was evaluated using TiO2 P-25 (Degussa) as a catalyst. These experiments were accomplished in a batch slurry reactor with temperature control and a UV lamp. The effects of the initial styrene concentration, the catalyst concentration, the hydrogen peroxide addition and the initial pH of the ...
Taffarel, Silvio R., Lansarin, Marla A., Moro, Celso C.   +2 more
openaire   +4 more sources

Dynamic disorder in simple enzymatic reactions induces stochastic amplification of substrate [PDF]

, 2017
A growing amount of evidence points to the fact that many enzymes exhibit fluctuations in their catalytic activity, which are associated with conformational changes on a broad range of timescales. The experimental study of this phenomenon, termed dynamic
Gupta, Ankit, Khammash, Mustafa, Milias-Argeitis, Andreas   +2 more
core   +2 more sources

Passage and degradation kinetics of solid particles from agricultural residues

Semina: Ciências Agrárias
The use of waste generated in the agroindustry can result in increased production at a relatively low cost compared to traditional ingredients, especially for producers with easy access to this waste.
Marco Aurélio Teixeira Andrade, Bruna Cardoso Braga, Severino Delmar Junqueira Villela, Raphael dos Santos Gomes, Maria Eduarda Lara Resende, Guilherme Campos Leitão, Fernando de Paula Leonel   +6 more
doaj   +1 more source