Browsing UiS Brage by Title
Now showing items 11901-11920 of 18923
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New control structure for high voltage fields
(Master thesis, 2023)In electrostatic painting, a high voltage is applied to the paint, attracting the paint particles toward a grounded work object, drastically increasing the efficiency of the painting process. However, combining high voltage ... -
A new crack spacing model for reinforced concrete specimens with multiple bars subjected to axial tension using 3D nonlinear FEM simulations
(Peer reviewed; Journal article, 2021-10)Crack spacing is a governing parameter in widely used crack width calculation models. Axial tensile experiments are conducted to examine the crack spacing behavior of reinforced concrete specimens with multiple reinforcement ... -
New Developments in Demulsifier Chemistry
(Masteroppgave/UIS-TN-IKBM/2018;, Master thesis, 2018-07-13)Sixteen new demulsifier chemicals were prepared based on dendrimer chemistry. They were designed to be amphiphilic with hydrophilic ethoxylated blocks, hydrophobic polyester dendrimer cores and alkyl chains. Three different ... -
New Drilling Technology for Hole Cleaning and Efficient Drilling
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-07)Well integrity is an important safety aspect of a well. Lack of wellbore integrity can lead to challenges like wellbore collapse, stuck pipe, lost circulation and sloughing shales, which are all big problems for drillers. ... -
New Eco-Friendly Drilling Fluids Synthesis and Characterization: Experimental and Simulation Studies
(Master thesis, 2023)Drilling fluids are an essential part of a safe and successful drilling operation. They offer several key functions such as transporting cuttings to the surface and controlling wellbore pressure. When designing a new ... -
The New Ecological Paradigm, Pro-Environmental Behaviour, and the Moderating Effects of Locus of Control and Self-Construal.
(Peer reviewed; Journal article, 2020-09)Acquiring a better understanding of what drives pro-environmental and sustainable behaviour is important for both researchers and practitioners alike. The purpose of this paper is to explore the moderating role of locus ... -
New empirical evidence for popularity in company ESG data
(Master thesis, 2021)ESG awareness among both professional and retail investors has seen an increase in the last two decades. A large part of the literature finds that investing in companies with a high ESG score comes at a cost. We study to ... -
New empirical evidence for popularity in company ESG data
(Master thesis, 2021)ESG awareness among both professional and retail investors has seen an increase in the last two decades. A large part of the literature finds that investing in companies with a high ESG score comes at a cost. We study to ... -
A new formulation of the surface charge/surface potential relationship in electrolytes with valence less than three
(Peer reviewed; Journal article, 2023)Surface complexation models (SCMs) based on Gouy-Chapman theory are often used to describe adsorption of ions onto mineral surfaces. To compensate for the buildup of charge at a solid surface, the composition of the electric ... -
A new framework to identify and assess hidden assumptions in the background knowledge of a risk assessment
(Peer reviewed; Journal article, 2020)A risk assessment has a more or less subjective nature, as the analyst needs to make assumptions, analyse data, use models, and so on, to produce risk-related knowledge of the phenomena of interest. This background knowledge ... -
New G2-conifolds in M-theory and their field theory interpretation
(Peer reviewed; Journal article, 2021)A recent theorem of Foscolo-Haskins-Nordström [1] which constructs complete G2-holonomy orbifolds from circle bundles over Calabi-Yau cones can be utilised to construct and investigate a large class of generalisations of ... -
New generation expandable sand screens
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-06-12)This thesis aims to give a general insight into sand control and various sorts of sand control measures and applications of sand control tools. Special focus will be given to expandable sand screens – a technology which ... -
New insight regarding the ageing workforce : It is time to close this knowing-doing gap
(Chapter, 2023)The Western world faces an ageing of the population due to large cohorts born after the Second World War. Their life expectancies are increasing, their health is better as compared to previous generations, and smaller ... -
New insights into late Holocene farming and woodland dynamics in western Ireland with particular reference to the early medieval horizontal watermill at Kilbegly, Co. Roscommon
(Journal article; Peer reviewed, 2011-01)motorway construction, at the edge of a small mire in Kilbegly Townland, County Roscommon, provided the opportunity for palaeoecological investigations of peat and fossil moss-polster samples in a part of western Ireland ... -
New Insights into the Behaviour of Commercial Silicon Electrode Materials via Empirical Fitting of Galvanostatic Charge-Discharge Curves
(Peer reviewed; Journal article, 2023)Silicon (Si) materials for use in Lithium ion batteries (LIBs) are of continued interest to battery manufacturers. With an increasing number of commercially available Si materials, evaluating their performance becomes a ... -
New investment models for gas infrastructure on the Norwegian Continental Shelf
(Masteroppgave/UIS-SV-HH/2014;, Master thesis, 2014-07-14)This master thesis is a study of how new investment models for gas infrastructure can contribute to realization of new gas resources on the NCS. It analyzes the separation of gas infrastructure from the rest of the field ... -
New jack-up concept for Arctic conditions
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)Arctic exploration is one of the main trends in today’s oil and gas industry. In shallow waters jack-up mobile drilling units are often used for drilling outside the ice season. The operating period of the jack-ups is ... -
New method for measuring viscosity of mixtures of two fluids
(Bachelor thesis, 2023)When executing a drilling operation in a well, rheological properties are important to understand in order to have the most error- and problem-free drilling operation as possible. Drilling fluids such as mud, spacer and ... -
New methodology for foam cement mixing to better reflect onsite mixing method
(Masteroppgave/UIS-TN-IPT/2011;, Master thesis, 2011)Foamed cement has become a well established cementing method for many applications in oilwell cementing all over the world. A key factor to a successful foam cement job is an optimized cement slurry design. To achieve ... -
New Microwave Technology for the Treatment of Drill Cuttings
(Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017)The focus of this thesis was to investigate the limitations of the new microwave susceptor technology. The technology offers promising opportunities in the treatment of oil contaminated drill cuttings to meet OSPAR and oil ...