Blar i Faculty of Mathematics and Natural Sciences på tittel
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Upscaled modeling of CO2 injection and migration with coupled thermal processes
(Peer reviewed; Journal article, 2013)A practical modeling approach for CO2 storage over relatively large length and time scales is the vertical-equilibrium model, which solves partially integrated conservation equations for flow in two lateral dimensions. We ... -
Upscaling of Nonisothermal Reactive Porous Media Flow under Dominant Péclet Number: The Effect of Changing Porosity
(Peer reviewed; Journal article, 2016)Motivated by rock-fluid interactions occurring in a geothermal reservoir, we present a two-dimensional pore scale model of a thin strip consisting of void space and grains, with fluid flow through the void space. Ions in ... -
Upscaling of the Coupling of Hydromechanical and Thermal Processes in a Quasi-static Poroelastic Medium
(Peer reviewed; Journal article, 2018-08)We undertake a formal derivation of a linear poro-thermo-elastic system within the framework of quasi-static deformation. This work is based upon the well-known derivation of the quasi-static poroelastic equations (also ... -
Upscaling on Fracture Flow Models
(Master thesis, 2017-08-25)Fractures have a great impact on the quality of a porous media. The understanding of the fractures is important to describe the challenges linked to flow of geothermal heat, the transport of groundwater or transport of ... -
Upscaling, analysis, and iterative numerical solution schemes for thermo-poroelasticity
(Doctoral thesis, 2019-06-28)The main objectives of this research project is to provide part of the mathematical models and simulation technology required to assess large-scale deployment of thermomechanical subsurface energy storage in the context ... -
Upstream sources of the Denmark Strait Overflow: Observations from a high-resolution mooring array
(Peer reviewed; Journal article, 2016)We present the first results from a densely instrumented mooring array upstream of the Denmark Strait sill, extending from the Iceland shelfbreak to the Greenland shelf. The array was deployed from September 2011 to July ... -
Upward shift in elevational plant species ranges in Sikkilsdalen, Central Norway
(Journal article, 2011-11-04)Phytosociological studies are an important tool to detect temporal vegetation changes in response to global climate change. In this study, we present the results of a resurvey of a plot-based phytosociological study from ... -
Urban basin deposit. The pollution history of Lille Lungegårdsvannet, Bergen
(Doctoral thesis, 2014-12-09)The sediments within urban lakes will, if left undisturbed, reflect a part of the history of the city through the record of chemical compounds. The sediment chemistry in Lille Lungegårdsvannet in Bergen city is ... -
Use of algae technology for production of biohydrogen from green microalgae: Possibilities for a practical sustainable process and diversity at both species selection, culturing and gene transcript levels
(Doctoral thesis, 2011-01-28)Algae technology represents an extensive research field which has developed rapidly over the last decades. The research activities extend from algae cultivation including CO2 capture, production of commercial products such ... -
Use of biodegradable colloids and carbon black nanofluids for solar energy applications
(Journal article; Peer reviewed, 2021)The conversion of solar energy to heat can be performed in direct absorption solar collectors, where the radiation from the sun is absorbed by a fluid. There are various types of fluids that can be used, and recently, ... -
Use of CO2 Foam to Increase CO2 Storage and Oil Recovery for CCUS
(Master thesis, 2022-06-10) -
Use of herbal products during pregnancy
(Doctoral thesis, 2009-05-27)Background: The use of herbal remedies is gaining popularity in the western world though little scientific documentation for safety and efficacy is available. Women are found to be more frequent users of herbs than men and ... -
Use of inverse rock physics modeling in reservoir characterization
(Master thesis, 2012-05-31)Reservoir characterization based on seismic data demands a robust and reliable method that transforms seismically derived parameters such as elastic moduli, P-velocity, S-velocity or acoustic impedance into parameters ... -
Use of market ready light dosimeters for patients with erythropoietic protoporphyria disorder
(Master thesis, 2017-06-21)Erythropoietic protoporphyria (EPP) disorder causes severe pain in the skin when patients are overexposed to light, particularly blue light. These patients can only stay exposed to sunlight for a short amount of time, and ... -
The use of photo and video as surveying tools on sessile organisms in shallow soft-bottom habitats - Photoframe and videosleigh method
(Master thesis, 2018-04-18)The Institute of Marine Research (IMR) wants to start a systematic survey of shallow, soft-bottom habitats. The IMR wants to implement two new methods using photo and video, the photoframe and the videosleigh method. Where ... -
The use of photoperiods to provide year round spawning in lumpfish Cyclopterus lumpus
(Peer reviewed; Journal article, 2019)In order to provide year round spawning broodstock, lumpfish (initial size 746 g and 24.9 cm) were reared under four different photoperiod regimes from January 2017 to July 2018. One group was reared under simulated natural ... -
The use of surfactant-filled mesoporous silica as an immobilising medium for a fluorescence lifetime pH indicator, providing long-term calibration stability
(Peer reviewed; Journal article, 2019-11-14)Surfactant filled mesoporous silica is applied as a matrix for immobilizing the fluorescence lifetime pH-indicator acridine. We demonstrate that this type of encapsulation provides a stable and uniform chemical environment ... -
Use of synthetic health data in prototyping for developing dental implant registry services
(Master thesis, 2022-06-01)Developing novel applications in healthcare and dentistry can be challenging due to lack of application requirements, uncertain stakeholders, and no available test data. Such conditions exist in tooth implant dentistry, ... -
User's guide to Express: A tool for building knowledge-based systems for statistical data analysis
(Statistical report no. 27, Research report, 1996-07) -
User-configurable, high-level transformations with CodeBoost
(Master thesis, 2003)Scalable design of large applications requires domain-specific, high-level abstraction. Classically, there has been a tension between abstraction and good performance. We demonstrate how to overcome this tension by augmenting ...