The measurement of any physical property as a function of temperature brings the method used into the realm of thermal analysis [...].
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http://dx.doi.org/10.3390/ma14174923 | DOI Listing |
Sci Rep
December 2024
Gansu Provincial Ecological Environment Engineering Assessment Center, Lanzhou, 730000, People's Republic of China.
In this study, polyethylene glycol (PEG) and dextran (Dex) were chemically modified to obtain amino-functionalized PEG (PEG-(NH)) and oxidized dextran (ODex). They were subsequently reacted via -NH and -CHO groups to synthesize a macromolecular Schiff base particle. The structures, morphologies, and thermal properties of the macromolecular Schiff base particle were characterized using Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and thermogravimetry analysis (TGA).
View Article and Find Full Text PDFSci Rep
December 2024
Department of Mathematics, University of Gujrat, Gujrat, 50700, Pakistan.
This study is the application of a recurrent neural networks with Bayesian regularization optimizer (RNNs-BRO) to analyze the effect of various physical parameters on fluid velocity, temperature, and mass concentration profiles in the Darcy-Forchheimer flow of propylene glycol mixed with carbon nanotubes model across a stretched cylinder. This model has significant applications in thermal systems such as in heat exchangers, chemical processing, and medical cooling devices. The data-set of the proposed model has been generated with variation of various parameters such as, curvature parameter, inertia coefficient, Hartmann number, porosity parameter, Eckert number, Prandtl number, radiation parameter, activation energy variable, Schmidt number and reaction rate parameter for different scenarios.
View Article and Find Full Text PDFBMC Microbiol
December 2024
Winogradsky Institute of Microbiology Federal Research Center Fundamentals of Biotechnology Russian Academy of Sciences, 60 let Oktyabrya Prospect, 7 Build.2, Moscow, Russia.
The Kuril Islands are located in the Far-East of Russia and enriched with shallow and terrestrial hot springs. Prokaryotic diversity of Kuril geothermal environments has been studied fragmentarily and mainly by culture-dependent methods. We performed the first large-scale investigation of microbial communities, inhabited more than 30 terrestrial hot springs of Kunashir and Iturup Islands, analyzed by 16S rRNA gene fragment amplicon sequencing, together with chemical analysis of thermal waters and sediments.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Food and Nutritional Sciences Program, North Carolina Agricultural and Technical State University, Greensboro, NC, USA.
A chicken protein hydrogel (HG) was enzymatically prepared and blended with a carnauba wax-based oleogel (OG) to form bigels (BG) in ratios of 50:50 to 90:10. These systems were infused with thyme essential oil (TEO) at 0.5 %, 1 %, and 2 % v/v to harness its antioxidant properties.
View Article and Find Full Text PDFFood Chem
December 2024
School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; Scientific Research Base of Edible Mushroom Processing Technology Integration of Ministry of Agriculture and Rural Affairs, Changchun 130118, China. Electronic address:
The waste Lentinus edodes stalks from Lentinus edodes processing were used as raw materials by the steam explosion to prepare modified Lentinus edodes stalks dietary fiber and combined with tea polyphenols to form the SE-DF-tea polyphenols complex (SE-DF-TPC). The SE-DF-tea polyphenols mixture (SE-DF-TPM) was prepared according to the complex's optimal adsorption conditions. Fluorescence microscopy, Fourier transform infrared spectroscopy, particle size measurement, thermogravimetric analysis, and X-ray diffraction were used to analyze its structure, and the thermal stability of the complex and its adsorption capacity for lipids, cholesterol, and cholates were studied.
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