Results 1 to 10 of about 1,101,165 (304)

Kinetic Parameters of Nut Shells Pyrolysis

open access: yesEnergies, 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   +2 more
doaj   +1 more source

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

open access: yesIranica 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

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

open access: yesBeilstein 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]

open access: yesHemijska 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.   +1 more
doaj   +1 more source

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

open access: yesMolecules, 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]

open access: yesTehnika, 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.   +5 more
doaj   +1 more source

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

open access: yesEngineering 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   +1 more
doaj   +1 more source

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

open access: yesУспехи 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

Repeatability and Temporal Consistency of Lower Limb Biomechanical Variables Expressing Interlimb Coordination during the Double-Support Phase in People with and without Stroke Sequelae

open access: yesSensors, 2023
Reliable biomechanical methods to assess interlimb coordination during the double-support phase in post-stroke subjects are needed for assessing movement dysfunction and related variability.
Ana G. B. Couto   +9 more
doaj   +1 more source

Biosorption of Cu (II) and Zn (II) with açaí endocarp Euterpe oleracea M. in contaminated aqueous solution

open access: yesActa Scientiarum: Technology, 2016
Current analysis investigates the capacity of the açaí endocarp (Euterpe oleracea M.) as a biosorbent for the removal of Cu2+ and Zn2+ in monoelementary water solutions. The best conditions for the ion adsorption process were pH of the solution at 4.0; 8
Affonso Celso Gonçalves Junior   +5 more
doaj   +1 more source

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