Browsing Øvrige samlinger by Title
Now showing items 19874-19893 of 39033
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Kinetic Study of Butanol Production from Mixtures of Glucose and Xylose and Investigation of Different Pre-growth Strategies
(Journal article; Peer reviewed, 2019)This study proposes a dynamic model that describes key characteristics of fermentative butanol production from glucose and xylose mixtures. The model has 12 parameters and incorporates noncompetitive inhibitory interaction ... -
Kinetic study of vacuum evaporation of elements from ternary melts; case of dilute solution of P in Si-Al melts
(Journal article; Peer reviewed, 2019)This research is devoted to study phosphorus removal from Si-Al alloys by vacuum refining of the ternary system of dilute solutions of P in Si-20 wt%Al. The experiments were carried out in an induction furnace and after ... -
Kinetic Theory and Shear Viscosity of Dense Dipolar Hard Sphere Liquids
(Peer reviewed; Journal article, 2020)Transport properties of dense fluids are fundamentally challenging, because the powerful approaches of equilibrium statistical physics cannot be applied. Polar fluids compound this problem, because the long-range interactions ... -
Kinetics Analysis of Steam Reforming of Methane on Sponge Iron
(Peer reviewed; Journal article, 2022)The kinetics of steam reforming of methane catalyzed by sponge iron was studied at temperatures between 875°C and 1050°C. Results shows that sponge iron acts as a catalyst and methane conversion is increased in higher ... -
Kinetics during hydrothermal synthesis of nanosized KxNa1-xNbO3
(Journal article, 2018)Hydrothermal synthesis is an efficient method of making nanosized functional oxide materials, and it has also been used to synthesize KxNa1−xNbO3 solid solution, a promising lead-free piezoelectric material. However, the ... -
Kinetics of CO2 Absorption by Aqueous 3-(methylamino)propylamine Solutions: Experimental Results and Modeling
(Journal article; Peer reviewed, 2014-07-09)Experimental data and a model for the initial kinetics of CO2 into 3-(methylamino)propylamine (MAPA) solutions are presented in work. MAPA has been tested as an activator for tertiary amines with encouraging results. The ... -
Kinetics of CO2 absorption into aqueous solutions of 3-dimethylamino-1-propanol and 1-(2-hydroxyethyl)pyrrolidine in the blend with 3-(methylamino)propylamine
(Journal article, 2019)The kinetics of CO2 absorption into unloaded aqueous solutions of 3-dimethylamino-1-propanol (3DMA1P) and 1-(2-hydroxyethyl)pyrrolidine (1-(2HE)PRLD) blended with 3-(methylamino)propylamine (MAPA) were studied in the ... -
Kinetics of Crystallization of Aqueous Droplets in Water-in-Crude Oil Emulsions at Low Temperatures
(Journal article; Peer reviewed, 2018)This study focused on the examination of the isothermal crystallization of aqueous droplets in water-in-crude oil emulsions with water concentrations in the range of 5 to 20 wt %. Experiments were carried out using ... -
Kinetics of cyclically-induced mechanical twinning in γ-TiAl unveiled by a combination of acoustic emission, neutron diffraction and electron microscopy
(Peer reviewed; Journal article, 2021)The cyclic response and the microstructure evolution of the near γ-TiAl alloy are investigated by a blend of contemporary experimental techniques centred around in-situ acoustic emission (AE) measurements reflecting the ... -
Kinetics of froth flotation of naturally hydrophobic solids with different shapes
(Journal article; Peer reviewed, 2018)In this paper, kinetics of flotation of naturally hydrophobic polystyrene platelets with the same roundness, solidity, surface roughness and hydrophobicity but different basic shapes i.e. circular, square and triangular, ... -
Kinetics of hydrogen absorption and desorption in titanium
(Journal article; Peer reviewed, 2017)Titanium is reactive toward hydrogen forming metal hydride which has a potential application in energy storage and conversion. Titanium hydride has been widely studied for hydrogen storage, thermal storage, and battery ... -
Kinetics of Magnesiothermic Reduction of Natural Quartz
(Peer reviewed; Journal article, 2022)In this work, the kinetics of natural quartz reduction by Mg to produce either Si or Mg2Si was studied through quantitative phase analysis. Reduction reaction experiments were performed at various temperatures, reaction ... -
Kinetics of silicon nitride coatings degradation and its influence on liquid infiltration in PV silicon crystallization processes
(Peer reviewed; Journal article, 2021)Safe implementation of reusable crucibles in the silicon PV industry requires a thorough understanding of the reactions in the system to avoid liquid infiltration and crucible failure at high temperatures. Typically, an ... -
Kinetics of Slag Reduction in Silicomanganese Production
(Peer reviewed; Journal article, 2020)In this study, the reduction of three silicomanganese charges prepared from industrial raw materials was investigated under isothermal conditions between 1783 K and 1933 K (1510 °C and 1660 °C). The main reactions examined ... -
Kinetics of the leaching of alumina-containing slag for alumina recovery
(Chapter, 2019)The leaching kinetics of an alumina-containing slag produced from the smelting-reduction of low-grade bauxite, which contained a significant amount of iron and low levels of SiO2 and TiO2, is studied. The leaching rates ... -
Kinetics Study on the Hydrogen Reduction of Bauxite Residue-Calcite Sintered Pellets at Elevated Temperature
(Peer reviewed; Journal article, 2023)In this study, the isothermal reduction of bauxite residue-calcite sintered pellets by hydrogen at elevated temperatures and different gas flow rates was investigated. A thermogravimetric technique was applied to study the ... -
Kinetics-assisted discrimination of active sites in Ru catalyzed hydrolytic dehydrogenation of ammonia borane
(Journal article; Peer reviewed, 2019)Identifying the underlying nature of the structure sensitivity from the catalyst active site point of view in heterogeneous catalytic reactions is of prime scientific and industrial importance. In this work, the kinetics-assisted ... -
Kings and aristocratic elites: communicating power and status in medieval Norway
(Peer reviewed; Journal article, 2020)The article investigates the decisive developments of interactions between the Norwegian crown and the aristocratic elites in twelfth and thirteenth century Norway. It reflects on how the issues of social dignity, pre-eminence ... -
Kirchhoff-Love shells within strain gradient elasticity: weak and strong formulations and an H3-conforming isogeometric implementation
(Journal article; Peer reviewed, 2018)A strain gradient elasticity model for shells of arbitrary geometry is derived for the first time. The Kirchhoff–Love shell kinematics is employed in the context of a one-parameter modification of Mindlin’s strain gradient ... -
Kirigami inspired shape programmable and reconfigurable multifunctional nanocomposites for 3D structures
(Peer reviewed; Journal article, 2022)The ability to shape and program remotely and contactlessly from two-dimensional (2D) flat multilayer materials into three-dimensional (3D) structures and functional devices could be ideal for applications like space ...