Faculty of Science and Technology: Recent submissions
Now showing items 1861-1880 of 7367
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Exploiting the geochemical attributes of migrated oils for an improved understanding of their sourcing facies : Lessons learned from the southeastern Caribbean and the Norwegian Barents and North Seas
(PhD thesis UiS;, Doctoral thesis, 2023-01)Assessing the geochemistry of oils and the source rock facies from which they originated is crucial in petroleum systems analysis. Crude oils are usually available for geochemical characterization, but pertinent source ... -
On the use of the vision zero principle and the ALARP principle for production loss in the oil and gas industry
(Peer reviewed; Journal article, 2019)In the oil and gas industry, there is a strong focus on reducing production loss, and in the last decade the industry has adopted Vision Zero as a governing principle, to meet this goal. A previous paper has concluded that, ... -
Validation study of MARCKSL1 as a prognostic factor in lymph node-negative breast cancer patients
(Peer reviewed; Journal article, 2019)Protein expression of Myristoylated alanine-rich C kinase substrate like-1 (MARCKSL1) has been identified as a prognostic factor in lymph-node negative (LN-) breast cancer patients. We aim to validate MARCKSL1 protein ... -
Numerical simulation-based effect characterization and design Optimization of micro cross-flow turbine
(Peer reviewed; Journal article, 2019)In this era of high power demand along with a need for sustainability, small and micro-scale hydro turbines are indispensable, especially for off-grid power generation. These hydro-turbines are more appealing, particularly ... -
Synthesis and characterization of fly ash and slag based geopolymer concrete
(Peer reviewed; Journal article, 2019)This paper presents the formulation and characterization of composite fly ash and slag based geopolymer concrete. Potassium hydroxide (KOH) and potassium silicate (K2SiO3) liquid alkaline activators were used in the ... -
Synergy Effect Study of Poly(N-isoacrylamide) with Tetra Butyl Phosphonium Bromide on Methane Hydrate Formation
(Journal article, 2019)Natural gas hydrate plugging is one of the costly and challenging problems for the oil and gas industry, especially for subsea fields. One way to prevent gas hydrate formation at low cost is the use of low-dosage hydrate ... -
Spatial and temporal axes impact ecology of the gut microbiome in juvenile European lobster (Homarus gammarus)
(Peer reviewed; Journal article, 2019)Microbial communities within the gut can markedly impact host health and fitness. To what extent environmental influences affect the differential distribution of these microbial populations may therefore significantly ... -
Advancing Deep Learning to Improve Upstream Petroleum Monitoring
(Peer reviewed; Journal article, 2019)Data analytics is rapidly growing field in both academia and industry dealing with processing and interpreting large and complex data sets. It has got already many successful applications via advancing machine (ML) and ... -
A strategy to characterize chlorophyll protein interaction in LIL3
(Peer reviewed; Journal article, 2019)The function of proteins is at large determined by cofactors selectively bound to protein structure. Without chlorophyll specifically bound to protein, light harvesting and photosynthesis would not be possible. The binding ... -
How the distinction between general knowledge and specific knowledge can improve the foundation and practice of risk assessment and risk-informed decision-making
(Peer reviewed; Journal article, 2019)There is an increasing awareness and recognition of the importance of reflecting knowledge and lack of knowledge in relation to the understanding, assessment and management of risk. Substantial research work has been ... -
Fatigue strength degradation of corroded structural details: A formula for S‐N curve
(Peer reviewed; Journal article, 2019)A formula is proposed to predict fatigue strength of corroded members and joints of steel structures. The concept of the formula is first studied from recently identified mechanism of corrosion fatigue. Hence, the corresponding ... -
Effect of Dispersion Treatment on Dairy Waste Activated Sludge to Hasten the Production of Biogas
(Peer reviewed; Journal article, 2019)The solubilization potential of biological pre-treatment for waste activated sludge (WAS) is limited due to the floc structure of the WAS. Extra polymeric substances (EPS) are responsible for floc formation. In this ... -
Cfd analysis of low frequency oscillations in Newtonian and non-Newtonian fluids in a vertical pipe
(Peer reviewed; Journal article, 2019)The effect of vertically imposed, low frequency oscillations on the rheology of shear-thinning non- Newtonian fluids are studied numerically by computational fluid dynamics (CFD). Both Newtonian (water) and inelastic ... -
Microbiome involved in anaerobic hydrogen producing granules: A mini review
(Peer reviewed; Journal article, 2019)This mini review overviewed the latest updates on the anaerobic hydrogen fermentation using the granulation technology and the microbiome involved in the process. Additionally, the implication of various reactor design and ... -
The Force Continuum: Prevalence and Characteristics of Police Use of Coercive Force
(Peer reviewed; Journal article, 2020)This study is among the first to investigate police use of coercive force in Norway; its purpose is to provide a general overview of the prevalence and particularly the characteristics of Norwegian police emergency response ... -
The strong power of standards in the safety and risk fields: A threat to proper developments of these fields?
(Peer reviewed; Journal article, 2019)Standards like ISO 31000 on risk management are increasingly influencing the risk and safety fields, despite rather strong criticism concerning their quality. In this paper, we perform a thorough discussion of the application ... -
The effects of slab geometries and wave directions on the steep wave-induced soil response and liquefaction around gravity-based offshore foundations
(Peer reviewed; Journal article, 2019)Gravity-based offshore foundations generally consist of a bottom slab and one or more cylindrical shafts on top of it. The slab geometry can strongly affect the surrounding flow pattern, dynamic wave pressure distribution ... -
Mooring systems analysis of floating wind turbines in Italian seas
(Peer reviewed; Journal article, 2019)In recent years, interest in exploiting wind power in deep waters has grown, with the realization of floating structures that could accommodate a turbine and produce electricity. One of the many challenges that these ... -
Will GPS Jammers Proliferate in the Smart City?
(Peer reviewed; Journal article, 2019)The Smart City will rely extensively on consented and unconsented information about people’s location and movements in order to fulfil its many ambitions. Utilising the Global Positioning System (GPS) is necessary and ... -
The cautionary principle in risk management: Foundation and practical use
(Peer reviewed; Journal article, 2019)The precautionary principle is well known among scientists, politicians and the public in general. However, the closely related and broader cautionary principle is not so often referred to. Whereas the precautionary principle ...