Browsing SINTEF by Title
Now showing items 2311-2330 of 10112
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Direct Method for Producing Scandium Metal and Scandium-Aluminium Intermetallic Compounds from the Oxides
(Journal article; Peer reviewed, 2018)The electrochemical de-oxidation process, also called FFC-Cambridge process, has been proposed previously to produce reactive metals and their alloys through reduction of their metal oxides. The process works by introducing ... -
Direct numerical simulation of coupled heat and mass transfer in fluid‐solid systems
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)In this paper, an efficient ghost-cell based immersed boundary method is introduced to perform direct numerical simulation (DNS) of particulate flows. The fluid-solid coupling is achieved by implicit incorporation of the ... -
Direct numerical simulation of flame stabilization assisted by autoignition in a reheat gas turbine combustor
(Journal article; Peer reviewed, 2018)A three-dimensional direct numerical simulation (DNS) is performed for a turbulent hydrogen-air flame, represented with detailed chemistry, stabilized in a model gas-turbine combustor. The combustor geometry consists of a ... -
Direct Numerical Simulation of hydrogen combustion at auto-ignitive conditions: Ignition, stability and turbulent reaction-front velocity
(Peer reviewed; Journal article, 2021)Direct Numerical Simulations (DNS) are performed to investigate the process of spontaneous ignition of hydrogen flames at laminar, turbulent, adiabatic and non-adiabatic conditions. Mixtures of hydrogen and vitiated air ... -
DIRECT NUMERICAL SIMULATION OF MASS TRANSFER FROM A SINGLE BUBBLE VIA AN IMPROVED SUBGRID SCALE MODEL
(SINTEF Proceedings;6, Chapter; Peer reviewed, 2020)Hydrogenation, oxidation and alkylation are just some of the processes which are performed in bubble columns. One of the reasons to use a bubble column for these processes is the high interfacial mass transfer coefficients. ... -
Direct numerical simulation of proppant transport in a narrow channel for hydraulic fracturing application
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)An efficient and accurate model for the direct numerical simulations (DNS) of liquid-solid flows is presented in this work. In this numerical model, fluid-solid coupling is achieved by implementing the no-slip boundary ... -
Direct numerical simulation of the effective drag in gas‐liquid‐solid systems
(SINTEF Proceedings;2, Chapter, 2017)Due to the increase in the oil prices and the depletion of the oil reserves, Fischer-Tropsch processes for the production of synthetic fuels, methanol synthesis and other gas-to-liquid processes are rapidly gaining interest. ... -
DIRECT NUMERICAL SIMULATION STUDY ON THE FREE LIQUID AREA IN LIQUID-PARTICLE AGGLOMERATES.
(SINTEF Proceedings;6, Chapter; Peer reviewed, 2020)Multiphase flows often occur in intensified industrial processes and understanding these complex processes is instrumental in their design and optimisation. In gas-phase polymerisation reactors, the heat management is ... -
Direct numerical simulations of premixed and stratified flame propagation in turbulent channel flow
(Journal article; Peer reviewed, 2018) -
Direct Observation of Charge Transfer between NOx and Monolayer MoS2 by Operando Scanning Photoelectron Microscopy
(Peer reviewed; Journal article, 2021)Atomically thin transition-metal dichalcogenides (MoS2, WSe2, etc.) have long been touted as promising materials for gas detection because of their tunable band gaps; however, the sensing mechanism, based on a charge-transfer ... -
Direction, not detail: Progress towards consensus at the fourth intergovernmental conference on biodiversity beyond national jurisdiction
(Peer reviewed; Journal article, 2022)After a two year delay caused by the COVID-19 pandemic, the fourth intergovernmental conference (IGC-4) in the negotiations for a new UN treaty to address the conservation and sustainable management of biodiversity beyond ... -
Directional wave spectrum estimation with ship motion responses using adversarial networks
(Peer reviewed; Journal article, 2022)The external environmental conditions around a vessel are essential for efficient and safe ship operation, among which the sea state is of key importance. Considering the ship as a large wave buoy, the sea state can be ... -
Disability and education: Qualitative case studies from Malawi
(SINTEF Rapport;A27470, Research report, 2016)The right to education is a human right, and it is also covered in the Convention on the Rights of the Child, the Convention on the Rights of Persons with Disabilities and in the Sustainable Development Goals. Despite this, ... -
Disability and equity in global health
(Journal article; Peer reviewed, 2017) -
Disagreements between space charge models and grain boundary impedance data in yttrium-substituted barium zirconate
(Peer reviewed; Journal article, 2020)Although the space charge model is commonly used to explain the high grain boundary resistance in proton conducting yttrium-substituted BaZrO3, it fails in its simplest forms with factors 10–40 to fit experimental data ... -
Discarded gems: Thermoelectric performance of materials with band gap emerging at the hybrid-functional level
(Peer reviewed; Journal article, 2021)A finite electronic band gap is a standard filter in high-throughput screening of materials using density functional theory (DFT). However, because of the systematic underestimation of band gaps in standard DFT approximations, ... -
Discerning relative humidity trends in vernacular and conventional building typologies for occupant health
(SINTEF Proceedings;9, Chapter; Peer reviewed; Conference object, 2021)The indoor built environment has a significant impact on the occupant's physiological, psychological, and behavioral health. Moisture is an important parameter that has a direct bearing on the quality of a built environment. ... -
Discovering Thermoelectric Materials Using Machine Learning: Insights and Challenges
(Journal article; Peer reviewed, 2018)This work involves the use of combined forces of data-driven machine learning models and high fidelity density functional theory for the identification of new potential thermoelectric materials. The traditional method of ... -
Discrete-element model of electrophoretic deposition in systems with small Debye length: effective charge, lubrication force, characteristic scales, and early-stage transport
(Journal article; Peer reviewed, 2019)Electrophoresis was recently proposed as a new method for controlling properties and structure of the interface between cement and steel elements in petroleum and construction industries (Lavrov A et al., 2018). Cement ... -
Discrimination between weaned and unweaned atlantic cod (Gadus morhua) in capture-based aquaculture (CBA) by X-ray imaging and radio-frequency metal detector
(Journal article; Peer reviewed, 2014-04-17)The aim of this study was to investigate the feasibility of two detection methods for use in discrimination and sorting of adult Atlantic cod (about 2 kg) in the small scale capture-based aquaculture (CBA). Presently, there ...