Results 21 to 30 of about 381,634 (263)

STUDY OF THERMAL AND ACID STABILITY OF BENTONITE CLAY

open access: yesIndonesian Journal of Chemistry, 2010
The thermal and acid stability of the bentonite clays (Na- and Ca-bentonite) have been tested. The thermal stability testing has been carried out by heating 5 gram of the clays  for five hours at 200, 300 and 500 °C respectively, meanwhile acid stability
Karna Wijaya   +3 more
doaj   +1 more source

Thermal stability of Cryptococcus albidus α-L-rhamnosidase [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2015
Yeast as well as micromycetes α-L-rhamnosidases, currently, are the most promising group of enzymes. Improving of the thermal stability of the enzyme preparation are especially important studies.
O. V. Gudzenko   +2 more
doaj   +1 more source

Thermal stability and creep properties of radiation crosslinked ultra-high molecular weight polyethylene

open access: yesFushe yanjiu yu fushe gongyi xuebao, 2022
The effects of γ-ray irradiation on the thermal stability and creep resistance of ultra-high molecular weight polyethylene (UHMWPE) were studied. First, UHMWPE powder was hot pressed into 1 mm thick sheets using a vulcanization molding machine.
WEN Xin   +5 more
doaj   +1 more source

Thermal Stability of Nanocrystalline Gradient Inconel 718 Alloy

open access: yesCrystals, 2021
Gradient structures containing nanograins in the surface layer have been introduced into Inconel 718 (IN718) nickel-based alloy using the surface mechanical grinding treatment technique. The thermal stability of the gradient IN718 alloy was investigated.
Jie Ding   +8 more
doaj   +1 more source

Correlation Stability Problem in Selecting Temperature-Sensitive Points of CNC Machine Tools

open access: yesMachines, 2022
In the thermal-error compensation of CNC machine tools, temperature-sensitive points (TSPs) are used for predicting thermal error and need to have a high correlation with the thermal error.
Hui Liu   +4 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Peroxidase from peach fruit: thermal Stability

open access: yesBrazilian Archives of Biology and Technology, 1998
Peroxidase from peach fruit was purified 28.9-fold by DEAE-cellulose, Sephadex G-100 and hydroxylapatite chromatography. The purified enzyme showed only one peak of activity with an optimum pH of 5.0 and temperature of 40ºC.
Valdir Augusto Neves, E. J. Lourenço
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Thermal stability enhancement and prediction by ANN model

open access: yesEnergy and AI
Supersonic aircraft requires thermal endurance of aviation fuel in the process of cooling engine and aircraft. As the composition of petroleum-based jet fuel (RP-3) is confined by crude oil and refining process, sustainable alternative jet fuel with ...
Ziyu Liu, Xiaoyi Yang
doaj   +1 more source

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