Faculty of Science and Technology: Nye registreringer
Viser treff 441-460 av 7322
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Two-body dynamic simulations of a combined semi-submersible floating offshore wind turbine and torus wave energy converter
(Peer reviewed; Journal article, 2023)Dynamic responses of a combined wind and wave energy system which consist of a 5MW semi-submersible floating offshore wind turbine (FOWT) and a torus-shaped wave energy converter (WEC) are investigated. In the investigated ... -
Service and inventory model for maintenance workshop in the short cycle operation region: Agent-based simulation approach
(Peer reviewed; Journal article, 2023)Tools used in the North Sea region has a high cycle and come very often to maintenance workshop to be checked, repaired if needed and prepared for the next operations. The availability of spare parts at the workshop plays ... -
The Effect of Lost Circulation Material on Herschel-Bulkley Parameters
(Peer reviewed; Journal article, 2023)To hinder loss of drilling fluids into downhole formations while drilling geothermal, CO2 injection or petroleum wells, Lost Circulation Material (LCM) is added to the drilling fluids. These materials consist of many ... -
Prediction of Fatigue Crack Initiation under Variable Amplitude Loading: Literature Review
(Peer reviewed; Journal article, 2023)Metallic materials are widely employed in engineering constructions, and one of the most common failure mechanisms in metals is fatigue failure. Even though metal fatigue has been studied for almost 160 years, many problems ... -
Lithium-Ion Capacitors: A Review of Strategies toward Enhancing the Performance of the Activated Carbon Cathode
(Peer reviewed; Journal article, 2023)Lithium-ion capacitors (LiC) are promising hybrid devices bridging the gap between batteries and supercapacitors by offering simultaneous high specific power and specific energy. However, an indispensable critical component ... -
Dynamic Performance and Control Strategies of Micro Gas Turbines: State-of-the-Art Review, Methods, and Technologies
(Peer reviewed; Journal article, 2023)The stringent energy and climate change regulations have resulted in a growing share of non-dispatchable renewable energy sources (i.e., solar and wind) in the global energy mix. This has influenced the use of fast and ... -
Modelling and Design of Pre-Equalizers for a Fully Operational Visible Light Communication System
(Peer reviewed; Journal article, 2023-06)Nowadays, Visible Light Communication (VLC) has gained much attention due to the significant advancements in Light Emitting Diode (LED) technology. However, the bandwidth of LEDs is one of the important concerns that limits ... -
Rheological properties of rock-based geopolymer slurries with different dispersant and counterion combinations
(Peer reviewed; Journal article, 2023)The production of Ordinary Portland Cement (OPC) is responsible for a significant part of global CO2 emissions. A potential alternative to OPC is alkali-activated materials (AAM), which do not contain OPC and are not ... -
Assessment of Yield Stress in Oil-Based Drilling Fluids
(Peer reviewed; Journal article, 2023)Yield stress is commonly used to describe the rheological properties of drilling fluids. There are various methods to define such yield stress. Some approaches provide yield stress values sufficient to derive a proper fluid ... -
Reduksjon av ressursforbruk til vannbehandling
(Bachelor thesis, 2023)Optimalisering, ATP, turbiditet, pH, TOC og oksygeninnhold. -
Applying a machine learning method for cumulative fatigue damage estimation of the IEA 15MW wind turbine with monopile support structures
(Peer reviewed; Journal article, 2023)Offshore support structures are critical for offshore bottom-fixed wind turbines, as they bear nearly all the mass and loading of wind turbine systems. In addition, the support structures are generally subjected to a harsh ... -
The effect of beliefs on intention and behaviour of speeding among young drivers in Norway: The use of the Theory of Planned Behaviour
(Master thesis, 2023)Young drivers worldwide play a major role in causing road accidents, largely due to speeding. Norway is no exception to this trend and faces challenges with speeding among its young drivers, calling for effective safety ... -
Experimental assessment of cracked tubular joints repaired with crack-deflecting holes and weld-toe grinding
(Peer reviewed; Journal article, 2023)Tubular joints in offshore structures for energy production are exposed to cyclic loading and may experience fatigue cracking. Presently, the inspection method commonly used for such structures will primarily detect whether ... -
Numerical modelling of a high temperature borehole thermal energy storage system: Norway case study
(Peer reviewed; Journal article, 2023)Global warming is threatening life on earth. Utilising renewable energy is considered as the most effective measure to minimise anthropogenic CO2 emissions. High-temperature borehole thermal energy storage (BTES) systems ... -
Alternatives to conventional rig for P&A on fixed installations
(Bachelor thesis, 2023)Looking forward, there will be a need of performing a considerable number of permanent plugging and abandoning (PP&A) of oil and gas wells on the Norwegian Continental Shelf (NCS). These wells just cannot be left behind. ... -
Signal analysis in gravitational wave data
(PhD thesis UiS;, Doctoral thesis, 2024)In this thesis, I study the gravitational wave signals coming from compact objects on both present-stage, and future gravitational wave detectors. The thesis is based on 3 articles, which will be presented after two brief ... -
Utbyttbar Skibinding
(Bachelor thesis, 2023)Et oppsett for alpintski kan variere veldig basert på hvilken type skikjøring som skal gjøres og hvordan forholdene er i bakken. Hovedsakelig er det utformingen på skien som bør endres basert på om det er mye løs snø, skare ... -
Quantification of perineural satellitosis in pretreatment glioblastoma with structural MRI and a diffusion tensor imaging template
(Peer reviewed; Journal article, 2023)Background Survival outcomes for glioblastoma (GBM) patients remain unfavorable, and tumor recurrence is often observed. Understanding the radiological growth patterns of GBM could aid in improving outcomes. This study ... -
Internal clearance behaviour in healthy and faulty bearings
(Peer reviewed; Journal article, 2023)Internal clearance is a critical parameter in bearing design and operation because it affects the bearing's performance. It can be considered as a special type of the looseness fault. Several studies indicate that rolling ... -
Totalforsvaret: Et Begrenset Samvirke
(Master thesis, 2023)I nyere tid har det globale, nasjonale og regionale sikkerhetsbilde vært under konstant endring. For å håndtere stadig mer komplekse kriser har den norske stat videreutviklet Totalforsvarskonseptet med et bevisst fokus på ...