Blar i SINTEF Open på tittel
Viser treff 6641-6660 av 10304
-
On the Direct Reduction Phenomena of Bauxite Ore Using H2 Gas in a Fixed Bed Reactor
(Peer reviewed; Journal article, 2020)The Bayer Process is the dominant industrial method to produce alumina from bauxite ore. Due to the generation of large amounts of Bauxite Residue (red mud), an alternative method, called the Pedersen Process, is of our ... -
On the dispersive wave-dynamics of 2 x 2 relaxation systems
(Journal article; Peer reviewed, 2012)We consider hyperbolic conservation laws with relaxation terms. By studying the dispersion relation of the solution of general linearized 2 × 2 hyperbolic relaxation systems, we investigate in detail the transition between ... -
On the Distinctiveness of Noble Gases in Injected Co2 from Background Fluids
(SINTEF Proceedings;7, Chapter; Peer reviewed; Conference object, 2021)A comprehensive monitoring program for CO2 storage sites is an integral part of designing CCS projects. Once a CO2 anomaly is observed or suspected, the source of the CO2 may be identified through evaluation of geochemical ... -
On the effect of calcium lignosulfonate on the rheology and setting time of cement paste
(Journal article; Peer reviewed, 2017)The effect of softwood calcium lignosulfonate, LSs, on the rheology and setting time of cement paste has been investigated. Two Portland cements with different surface area and C3A content were used. The lignosulfonate was ... -
On the effect of co2 on seismic and ultrasonic properties: A novel shale experiment
(Peer reviewed; Journal article, 2021)Carbon capture and storage (CCS) by geological sequestration comprises a permeable formation (reservoir) for CO2 storage topped by an impermeable formation (caprock). Time-lapse (4D) seismic is used to map CO2 movement in ... -
On the effect of temperature and velocity relaxation in two-phase flow models
(Journal article; Peer reviewed, 2012)We study a two-phase pipe flow model with relaxation terms in the momentum and energy equations, driving the model towards dynamic and thermal equilibrium. These equilibrium states are characterized by the velocities and ... -
On the Evolution of Stress and Microstructure in Radio Frequency-Sputtered Lead-Free (Ba,Ca)(Zr,Ti)O3 Thin Films
(Peer reviewed; Journal article, 2024)Thin-film piezoelectrics are widely investigated for actuators and energy harvesters, but there are few alternatives to toxic lead zirconate titanate. Biocompatible Ca- and Zr-modified BaTiO3 (BCZT) is one of the most ... -
On the Feasibility of Using Low-Melting Bath to Accommodate Inert Anodes in Aluminium Electrolysis Cells
(Peer reviewed; Journal article, 2021)Inert anodes for aluminium production can be made of ceramics, metals, or a mixture of those (cermets). Regardless of the type of anode, the surface will be an oxide. With high enough anode potential, the surface oxide ... -
On the globally exponentially convergent immersion and invariance speed observer for mechanical systems
(Journal article; Peer reviewed, 2017)In this article we present a reformulation of the invariance and immersion speed observer of Astolfi et al. as applied to mechanical systems with bounded inertia matrices. This is done to explore the possibility of its ... -
On the inaccuracies of point-particle approach for char conversion modeling
(Peer reviewed; Journal article, 2024)Char conversion is a complex phenomenon that involves not only heterogeneous reactions but also external and internal heat and mass transfer. Reactor-scale simulations often use a point-particle approach (PP approach) as ... -
On the mechanism of formation of back-end defects in the extrusion process
(Peer reviewed; Journal article, 2020)FEM-analysis is applied to study metal flow in aluminum extrusion with focus on how material flow defects form when the last part of the billet is extruded through an axisymmetric die. First, an overview is given of the ... -
On the mechanism of Mn(II)-doping in Scandia stabilized zirconia electrolytes
(Peer reviewed; Journal article, 2022)Cubic Scandia-stabilized zirconia (ScSZ) is an attractive electrolyte material for solid oxide cells due to its significant ionic conductivity, provided that the phase transition to its rhombohedral polymorph upon cooling ... -
On the mechanisms of consumption of calcium lignosulfonate by cement paste
(Journal article; Peer reviewed, 2017)The aim of this paper is to assess the mechanisms of consumption of softwood calcium lignosulfonate (LSs) by cement paste. The LSs consumption by two different cements (CX and ANL) and two reference materials (CaCO3 and ... -
On the microstructural origins of improvements in conductivity by heavy deformation and ageing of Al-Mg-Si alloy 6101
(Peer reviewed; Journal article, 2021)This work has examined an Al-0.54Mg-0.38Si (at.%) conductor alloy (6101) subjected to two different thermomechanical processing routes. Conventional solution treatment, quenching, and artificial ageing (170 °C) was compared ... -
On the numerical stability in dynamical distributed simulations
(Journal article; Peer reviewed, 2019-09)This work takes aim at studying numerical stability in distributed simulations through dynamic stabilityand stability criteria for explicit solvers. This is done by studying outer stability limits, for example stabilityconditions ... -
On the potential of integrating Building Information Modelling (BIM) for the Additive Manufacturing (AM) of concrete structures
(Journal article; Peer reviewed, 2019)Additive Manufacturing (AM) and Building Information Modelling (BIM) are emerging trends for which it has been claimed that both increase both efficiency and productivity in the construction industry. The aim of this study ... -
On the Predictive Power of Objective Intelligibility Metrics for the Subjective Performance of Deep Complex Convolutional Recurrent Speech Enhancement Networks
(Peer reviewed; Journal article, 2023)Speech enhancement (SE) systems aim to improve the quality and intelligibility of degraded speech signals obtained from far-field microphones. Subjective evaluation of the intelligibility performance of these SE systems ... -
On the preservation of second integrals by Runge-Kutta methods
(Peer reviewed; Journal article, 2023)One can elucidate integrability properties of ordinary differential equations (ODEs) by knowing the existence of second integrals (also known as weak integrals or Darboux polynomials for polynomial ODEs). However, little ... -
On the proper integration of wood stoves in passive houses under cold climates
(Journal article; Peer reviewed, 2014) -
On the proper integration of wood stoves in passive houses: investigation using detailed dynamic simulations
(Journal article; Peer reviewed, 2013)