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361.
Metallurgical and Materials Transactions A - The glass-forming ability (GFA) of Fe-Ni-TM alloys, where TM = V, Nb, Cr, Mo, was determined utilizing thermodynamic modeling. Enthalpies of formation... 相似文献
362.
Justyna Bochnak Michał Świeca 《International Journal of Food Science & Technology》2020,55(1):136-145
The study aimed to examine carrot, pumpkin and apple powders produced by hot-air-drying (50, 60, 70 °C) of samples with different levels of fragmentation (cut, grated, blended). The drying temperatures and sample structure were shown to be important determinants of the quality of the powders. The best colour stability of carrot, pumpkin and apple was found for the grated sample dried at 70 °C, the blended sample dried at 70 °C and the blended sample dried at 70 °C, respectively. The highest antiradical capacity and reducing power were found for powders obtained after drying the cut samples at 70 °C. Total phenolics and free radical quenchers were well bioaccessible in vitro. In turn, the reducing power was markedly reduced after drying at 50 °C. The analysed powders are a valuable source of concentrated bioactive ingredients, which predisposes them to serve as functional food components. 相似文献
363.
364.
Aleksandra Mielewczyk-Gryń Sebastian Wachowski Agnieszka Witkowska Kacper Dzierzgowski Wojciech Skubida Konrad Świerczek Anna Regoutz David J. Payne Stephen Hull Hangfeng Zhang Isaac Abrahams Maria Gazda 《Journal of the American Ceramic Society》2020,103(11):6575-6585
X-ray and neutron diffraction have been utilized to analyze the crystalline and electronic structure of lanthanum orthoniobate substituted by antimony. Using X-ray absorption spectroscopy and photoelectron spectroscopy, changes in the electronic structure of the material upon substitution have been analyzed. The structural transition temperature between fergusonite and scheelite phases for 30 mol% antimony substitution was found to be 15°C. Based on the neutron data, the oxygen nonstoichiometry was found to be relatively low. Moreover no influence on the position of the valence band maximum was observed. The influence of the protonation on the electronic structure of constituent oxides has been studied. Absorption data show that the incorporation of protonic defects into the lanthanum orthoniobate structure leads to changes in lanthanum electronic structure and a decrease in the density of unoccupied electronic states. 相似文献