Faculty of Science and Technology: Nye registreringer
Viser treff 1341-1360 av 7365
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Comparison of Lost Circulation Material Sealing Effectiveness in Water-Based and Oil-Based Drilling Fluids and Under Conditions of Mechanical Shear and High Differential Pressures
(Peer reviewed; Journal article, 2022)A study was conducted to assess the performance of granular and fibrous lost circulation materials as preventative treatments and in remedial treatment of lost circulation in water-based and oil-based drilling fluids. For ... -
Improving Data Availability in Decentralized Storage Systems
(PhD thesis UiS;, Doctoral thesis, 2023)Preserving knowledge for future generations has been a primary concern for humanity since the dawn of civilization. State-of-the-art methods have included stone carvings, papyrus scrolls, and paper books. With each advance ... -
Advances in Solar PV Systems; A Comprehensive Review of PV Performance, Influencing Factors, and Mitigation Techniques
(Peer reviewed; Journal article, 2022)PV power plants utilizing solar energy to generate electricity on a large scale has become a trend and a new option that has been adopted by many countries; however, in actuality, it is difficult to anticipate how much ... -
A Hydrogen-Fueled Micro Gas Turbine Unit for Carbon-Free Heat and Power Generation
(Peer reviewed; Journal article, 2022)The energy transition with transformation into predominantly renewable sources requires technology development to secure power production at all times, despite the intermittent nature of the renewables. Micro gas turbines ... -
A numerical study of density-unstable reverse circulation displacement for primary cementing
(Peer reviewed; Journal article, 2022)Primary cementing of the casing string is the operation where the annular space behind the casing is displaced to a cement slurry. Once hardened, the cement should form a solid annular barrier and provide zonal isolation ... -
Effect of temperatures on anaerobic granulated biofilm modelling
(Peer reviewed; Journal article, 2022)Anaerobic granulated biomass-based treatment is a sustainable alternative for municipal wastewater treatment. Each granule in the system is comprised of a complex community of anaerobic microorganisms embedded in a biofilm ... -
Novel reliability method validation for offshore structural dynamic response
(Peer reviewed; Journal article, 2022)The paper validates novel structural reliability Gaidai-Fu-Xing (GFX) method, particularly suitable for multi-dimensional structural responses, versus well established bivariate statistical method, that is known to accurately ... -
The Patient Flow Effect of Pandemic Policies: A Hybrid Simulation Study in a Norwegian Emergency Department
(Peer reviewed; Journal article, 2022)The COVID-19 pandemic required several interventions within emergency departments, complicating the patient flow. This study explores the effect of intervention policies on patient flow in emergency departments under ... -
Topological G2 and Spin(7) strings at 1-loop from double complexes
(Peer reviewed; Journal article, 2022)We study the topological G2 and Spin(7) strings at 1-loop. We define new double complexes for supersymmetric NSNS backgrounds of string theory using generalised geometry. The 1-loop partition function then has a target-space ... -
AWESOME: an auction and witness enhanced SLA model for decentralized cloud marketplaces
(Peer reviewed; Journal article, 2022)In recent decades, the world has witnessed cloud computing as an essential technology that changes the traditional application Development and Operation (DevOps) lifecycle. However, current cloud software DevOps and Service ... -
Gauging discrete symmetries of TN-theories in five dimensions
(Peer reviewed; Journal article, 2022)We study the gauging of a discrete ℤ3 symmetry in the five-dimensional superconformal TN theories. We argue that this leads to an infinite sequence of five-dimensional superconformal theories with either E6 × SU(N) or SU(3) ... -
A novel statistical method for long-term coronavirus modelling
(Peer reviewed; Journal article, 2022)Background: Novel coronavirus disease has been recently a concern for worldwide public health. To determine epidemic rate probability at any time in any region of interest, one needs efficient bio-system reliability approach, ... -
Modelling particle degradation and intermediate dynamics in a dispersed activated sludge microcosm
(Peer reviewed; Journal article, 2022)Municipal wastewater consists of a large fraction of particulate organic matter. During biological wastewater treatment these particles undergo extracellular depolymerisation before products are taken up by bacteria (MW < ... -
Novel deconvolution method for extreme FPSO vessel hawser tensions during offloading operations
(Peer reviewed; Journal article, 2022)Robust prediction of extreme hawser tensions during Floating Production Storage and Offloading (FPSO) operations is an important safety and reliability concern. Excessive hawser tension may occur during certain environmental ... -
X‐ray and Synchrotron FTIR Studies of Partially Decomposed Magnesium Borohydride
(Peer reviewed; Journal article, 2022)Magnesium borohydride (Mg(BH4)2) is an attractive compound for solid-state hydrogen storage due to its lucratively high hydrogen densities and theoretically low operational temperature. Hydrogen release from Mg(BH4)2 occurs ... -
Hydraulic Behaviour: A Tracer Study of a Stormwater Detention and Sedimentation System
(Master thesis, 2023)Stormwater is of growing concern with increased heavy rainfall and runoff surfaces from urbanisation. The challenges of stormwater has two aspects; risk of flooding and risk of pollution. Road runoff in particular, can at ... -
Optimal dimensjonering av massivtrekonstruksjoner: En studie av hvordan ulike fasthetsklasser påvirker kostnader i tverrsnitt av massivtre
(Bachelor thesis, 2023)Massivtre eller Kl-tre er et dagsaktuelt byggemateriale. Elementer i massivtre har gunstige styrkeegenskaper, er allsidig i sitt bruk samt innehar gode miljøegenskaper. Hovedmålet for denne oppgaven er å gjennomgå potensialet ... -
Polysulphate: A New Enhanced Oil Recovery Additive to Maximize the Oil Recovery From Carbonate Reservoirs at High Temperature
(Peer reviewed; Journal article, 2022)Seawater (SW) injection is an enhanced oil recovery (EOR) success in the North Sea carbonate reservoirs due to wettability alteration toward a more water-wet state. This process is triggered by the difference in composition ... -
Tackling strategic simultaneity: What NATO could do to adapt to the new multitude of threats
(Peer reviewed; Journal article, 2022)NATO is facing an unprecedented geostrategic environment characterized by simultaneous threats: Russian revisionism, the rise of China, the related problem of coping with threats in the cyber domain, and persistent challenges ... -
Report on the Workshop on Personal Knowledge Graphs (PKG 2021) at AKBC 2021
(Journal article, 2022)The term personal knowledge graph (PKG) has been broadly used to refer to structured representation of information about a given user, primarily in the form of entities that are personally related to the user. The potential ...