Results 1 to 10 of about 285,283 (169)

Activated Carbon from Fenugreek Seed: Characterization and Adsorption Properties for Dye Removal [PDF]

Iranica Journal of Energy and Environment, 2017
In this work, the preparation of activated carbons from agricultural product, the fenugreek seeds by two approaches, chemical and microwave activation methods were studied.
D. Basrur, J. Ishwara Bhat
doaj   +1 more source

Kinetic Parameters of Nut Shells Pyrolysis

Energies, 2021
The European Union created a European Green Deal Program (EGDP). This program aims at a sustainable economy through the transformation of the challenges related to climate and the environment. The main goal of EGDP is climate neutrality by 2050.
Tomasz Noszczyk, Arkadiusz Dyjakon, Jacek A. Koziel   +2 more
doaj   +1 more source

Kinetics of enzyme-catalysed desymmetrisation of prochiral substrates: product enantiomeric excess is not always constant

Beilstein Journal of Organic Chemistry, 2021
The kinetics of enzymatic desymmetrisation were analysed for the most common kinetic mechanisms: ternary complex ordered (prochiral ketone reduction); ping-pong second (ketone amination, diol esterification, desymmetrisation in the second half reaction);
Peter J. Halling
doaj   +1 more source

Aromatization of light naphtha fractions on zeolites 1: Kinetic model [PDF]

Hemijska Industrija, 2003
On the basis of analyzing kinetic experimental data performed in laboratory integral reactors a lumping kinetic model of the "Zeoforming" process was developed.
Rovenskaja Svetlana A., Ostrovski Nikolaj M.   +1 more
doaj   +1 more source

Comparison between 1,2-Dihydropyridine and 1,4-Dihydropyridine on Hydride-Donating Ability and Activity

Molecules, 2022
In this paper, detailed comparisons of the driving force in thermodynamics and intrinsic force in the kinetics of 1,2-dihydropyridine and 1,4-dihydropyridine isomers of PNAH, HEH, and PYH in hydride transfer reactions are made. For 1,2-PNAH and 1,4-PNAH,
Jin-Ye Zhang, Xiao-Qing Zhu
doaj   +1 more source

Determination the mechanism and kinetic parameters of copper sulfide minerals oxidation at elevated temperatures [PDF]

Tehnika, 2015
The paper presents DTA/TG results of polymetallic sulphide copper concentrate from the mine 'Veliki Krivelj' (Serbia) at 25-1000 °C. The reaction mechanism at elevated temperatures was proposed.
Štrbac Nada D., Sokić Miroslav D., Mitovski Aleksandra M., Živković Dragana T., Marković Branislav R., Andrić Velibor Đ.   +5 more
doaj   +1 more source

Performance Comparison of Activated Sludge Systems at Mesophilic and Thermophilic Modes in Treating Dairy Wastewater [PDF]

Engineering and Technology Journal, 2013
In this research, two activated sludgeexperimental laboratoryplants wereconstructed and operated using dairy wastewater. One of these plants were operatedat high temperatures of (40 – 60 oC) “Thermophilic microorganisms reactors",whereas the other one ...
Kossay K. Al-Ahmady, Mohamed Sameer Ghanim   +1 more
doaj   +1 more source

Identification of parameters for large-scale kinetic models [PDF]

Journal of Computational Physics, 2021
Inverse problem for the identification of the parameters for large-scale systems of nonlinear ordinary differential equations (ODEs) arising in systems biology is analyzed. In a recent paper in \textit{Mathematical Biosciences, 305(2018), 133-145}, the authors implemented the numerical method suggested by one of the authors in \textit{J. Optim.
Ugur G. Abdulla, Roby Poteau
openaire   +2 more sources

Physical Regularities for Cellular Precipitation of Co-, Cu-, and Pb-Based Supersaturated Solid Solutions

Успехи физики металлов, 2021
The decomposition of supersaturated solid solutions through the cellular mechanism is considered in terms of the physical regularities of this phenomenon. The general characteristics of this process are described.
M. I. Savchuk, O. V. Filatov, O. A. Shmatko
doaj   +1 more source