Faculty of Science and Technology: Nye registreringer
Viser treff 1901-1920 av 7367
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Analysis of spar and semi-submersible floating wind concepts with respect to human exposure to motion during maintenance operations
(Peer reviewed; Journal article, 2022)Floating offshore wind turbines (FOWTs) are expected to experience onsite maintenances and inspections during their lifetimes. To carry out offshore maintenance activities, a crew will be transferred to an FOWT and spend ... -
Translocation, bioaccumulation, and distribution of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in plants
(Peer reviewed; Journal article, 2022)Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are persistent in the environment and have been detected in a variety of plants such as vegetables, cereals, and fruits. Increasing evidence shows that plants are at a ... -
Gain-scheduled observer-based consensus for linear parameter varying multi-agent systems
(Peer reviewed; Journal article, 2022)This paper investigates the gain-scheduled observer-based consensus of linear parameter varying (LPV) multi-agent systems (MASs). The main contribution of the paper is that, differently from LPV observer-based consensus ... -
Static Rope Rescue Operations in Western Norway: A Retrospective Analysis of 141 Missions
(Peer reviewed; Journal article, 2022)Introduction The Norwegian national standard for rescuers describes medical and rescue requirements for helicopter emergency medical services (HEMS) technical crew members, but there is a lack of scientific data supporting ... -
Cardiac Structure and Function in Epilepsy Patients with Drug-Resistant Convulsive Seizures
(Peer reviewed; Journal article, 2022)High frequency of convulsive seizures and long-lasting epilepsy are associated with an increased risk of sudden unexpected death in epilepsy (SUDEP). Structural changes in the myocardium have been described in SUDEP victims. ... -
A Novel Empirical and Deep Ensemble Super Learning Approach in Predicting Reservoir Wettability via Well Logs
(Peer reviewed; Journal article, 2022)Accurately measuring wettability is of the utmost importance because it influences several reservoir parameters while also impacting reservoir potential, recovery, development, and management plan. As such, this study ... -
N‑Vinyl Caprolactam/Maleic-Based Copolymers as Kinetic Hydrate Inhibitors: The Effect of Internal Hydrogen Bonding
(Peer reviewed; Journal article, 2022)Kinetic hydrate inhibitors (KHIs) have been used for over 25 years to prevent gas hydrate formation in oil and gas production flow lines, but they are some of the most expensive oilfield production chemicals. The main ... -
Finding Clusters in Petri Nets An approach based on GPenSIM
(Peer reviewed; Journal article, 2019)Graph theory provides some methods for finding clusters in networks. Clusters reflect the invisible grouping of the elements in a network. This paper presents a new method for finding clusters in networks. In this method, ... -
Training-while-drilling approach to inclination prediction in directional drilling utilizing recurrent neural networks
(Peer reviewed; Journal article, 2020)Machine Learning adoption within drilling is often impaired by the necessity to train the model on data collected from wells analogous in lithology and equipment used to the well where the model is meant to be deployed. ... -
5-Methyl-3-vinyl-2-oxazolidinone-Investigations of a New Monomer for Kinetic Hydrate Inhibitor Polymers
(Peer reviewed; Journal article, 2022)Kinetic hydrate inhibitors (KHIs) are polymers used in a chemical method to prevent gas hydrate plugging of oil and gas production flow lines. The main ingredient in a KHI formulation is one or more water-soluble amphiphilic ... -
Multimessenger Constraints for Ultradense Matter
(Peer reviewed; Journal article, 2022)Recent rapid progress in neutron-star (NS) observations offers great potential to constrain the properties of strongly interacting matter under the most extreme conditions. In order to fully exploit the current observational ... -
The impact of COVID -19 on offshore wind project productivity – A case study
(Peer reviewed; Journal article, 2022)This study investigated productivity in an offshore wind project to understand the distribution of their value-adding and non-value-adding hours. A comprehensive literature review presented results on productivity in regular ... -
Numerical Modelling and Sensitivity Analysis of Gas Kick Migration and Unloading of Riser
(Chapter, 2019)In deepwater wells there is a risk of gas entering the riser. This can be caused by gas being trapped by the BOP after a well kill operation, or it can be that the BOP was not closed quickly enough upon kick detection. ... -
Power performance and dynamic responses of a combined floating vertical axis wind turbine and wave energy converter concept
(Peer reviewed; Journal article, 2019)Currently, the development of floating wind turbines and wave energy converters (WECs) is both facing the challenge of high cost-of-energy (CoE). A promising way to reduce the CoE is to employ combined wind and wave energy ... -
Insights from transaction data: Norwegian aquaculture exports
(Peer reviewed; Journal article, 2019)This paper discusses how transaction data can be used to shed light on trade dynamics in seafood exports, with Norwegian salmon exports as the case. There is a large literature on exports and imports of salmon between ... -
Identification of Arabidopsis Protein Kinases That Harbor Functional Type 1 Peroxisomal Targeting Signals
(Peer reviewed; Journal article, 2022)Peroxisomes are eukaryotic specific organelles that perform diverse metabolic functions including fatty acid β-oxidation, reactive species metabolism, photorespiration, and responses to stress. However, the potential ... -
Simulation of immiscible WAG injection in a stratified reservoir -- performance characterization using a new dimensionless number
(Peer reviewed; Journal article, 2019)Water alternating gas (WAG) is a well‐established enhanced‐oil‐recovery process where gas and water are injected in alternating fashion. Good volumetric sweep is achieved as water and gas target both the oil residing in ... -
Hydraulic Behavior in Cased and Open Hole Sections in Highly Deviated Wellbores
(Chapter, 2019)In this paper we present results from flow loop experiments with an oil-based drilling fluid with micronized barite as weight materials. The use of micronized barite allows using lower viscosity drilling fluid, providing ... -
Tackling the Cloud Forensic Problem while Keeping your Eye on the GDPR
(Chapter, 2019)If the cloud is just someone else's computer, securing forensic evidence in case of a breach can be tricky. A blockchain-based distributed ledger could contribute to solve this problem, provided the required forensic ... -
Architectural Risk Analysis in Agile Development of Cloud Software
(Chapter, 2019)Software in the cloud is predominantly developed using agile methodologies, where practices such as continuous deployment and DevOps contribute to increased speed and quick turnarounds. This increased speed does however ...