Blar i Faculty of Science and Technology på tittel
Viser treff 6584-6603 av 7044
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Ultrasound-assisted synthesis of novel 1,2,3-triazoles coupled diaryl sulfone moieties by the CuAAC reaction, and biological evaluation of them as antioxidant and antimicrobial agents
(Peer reviewed; Journal article, 2014-09)A series of 1,2,3-triazoles coupled diaryl sulfone containing compounds were synthesized by the copper-catalyzed azide-alkyne 1,3-dipolar cycloaddition (CuAAC) reaction in benign solvents under ultrasound irradiation. In ... -
Ulykker i arbeidslivet - tilsyn eller gransking? En komparativ studie av Arbeidstilsynets ulykkestilsyn og Petroleumstilsynets granskinger
(Master thesis, 2022)Arbeidsulykker skjer i de fleste bransjer og har ofte alvorlige konsekvenser. I denne oppgaven har jeg tatt utgangspunkt i to forskjellige statlige tilsynsorgan og hvordan de arbeider med slike ulykker: Petroleumstilsynets ... -
Umanned aerial vehicule
(Masteroppgave/UIS-TN-IDE/2010;, Master thesis, 2010) -
Uncertainties in current measurements in the northern North Sea
(Journal article; Peer reviewed, 2017)A met–ocean measurement program of waves and current profiles at five locations in the northern North Sea was performed over a period of approximately 5 years. Despite quality control, the measured current speed data ... -
Uncertainty Analysis of a Safety Operating Envelope for a Subsea Shuttle Tanker
(Master thesis, 2023)This thesis investigates the uncertainty of a safety operating envelope (SOE) for a subsea shuttle tanker (SST). The main focus of this work is on the jam-to-rise and jam-to-dive aspects of the accidental cases for the ... -
Uncertainty analysis of Supervised machine learning predictions applied to Lithology classification
(Master thesis, 2022)Geosteering is the technique of guiding directional drilling to remain within the pay zone. This process demands a thorough survey of the lithological properties of the surrounding geo- logical strata. Since logging while ... -
Uncertainty analysis of weight estimating in the oil & gas industry
(Masteroppgave/UIS-TN-IØRP/2011, Master thesis, 2011-06)Main objective is to analyze uncertainty with respect to WEPS (Weight Estimating and Project Screening) and Ramboll’s methods for weight estimation and how it performs. The reason for evaluation of an already implemented ... -
Uncertainty as a Swiss army knife: new adversarial attack and defense ideas based on epistemic uncertainty
(Peer reviewed; Journal article, 2022)Although state-of-the-art deep neural network models are known to be robust to random perturbations, it was verified that these architectures are indeed quite vulnerable to deliberately crafted perturbations, albeit being ... -
Uncertainty quantification in prostate segmentation
(Master thesis, 2023)Prostate cancer, a significant global health challenge, necessitates innovative diagnostic solutions. Despite the invaluable role of Magnetic Resonance Imaging (MRI), challenges persist in analysis due to time-intensive ... -
Uncertainty-Aware Prediction Validator in Deep Learning Models for Cyber-Physical System Data
(Peer reviewed; Journal article, 2022)The use of Deep learning in Cyber-Physical Systems (CPSs) is gaining popularity due to its ability to bring intelligence to CPS behaviors. However, both CPSs and deep learning have inherent uncertainty. Such uncertainty, ... -
Uncompensated and compensated backgrounds in homeostatic controllers: Analogies to retinal light adaptation
(Master thesis, 2023)Integral controllers with single negative feedbacks were subjected to a step-perturbation at constant but different backgrounds. Response amplitudes of the controlled variable, here called A, decreased monotonically with ... -
Underground Storage of Natural Gas in Aquifers by Using CO2 as Cushion Gas
(Master thesis, 2022)To satisfy energy demands, the natural gas supply must be smoothed. This aim can be accomplished by means of underground natural gas storage. They provide large-scale seasonal storage of natural gas. To maintain reservoir ... -
Understanding drilling induced fractures
(Masteroppgave/UIS-TN-IØRP/2012;, Master thesis, 2012)Oil and gas production is moving to harsher geological conditions such as deep water drilling and high-pressure high-temperature reservoirs, so accurate knowledge of wellbore stability is crucial. The main causes of wellbore ... -
Understanding Leakage Rates in Permanently Abandoned Wells by Studying Natural Hydrocarbon Seepages
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Permanent plug and abandonment (PP&A) of wells is steadily becoming more important on the Norwegian Continental Shelf (NCS), as a large number of fields are approaching end of their productive life. Combining operational, ... -
Understanding of buoyancy in drill pipe and risers
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)This thesis highlights that there is a wide spread use of the term “buoyancy” in the petroleum industry which can lead to misunderstandings. It is also evident that terms like “effective tension”, “true wall tension” and ... -
Understanding the Barriers to Reuse: A Qualitative Study of Reuse Potential in the Norwegian EE Industry
(Master thesis, 2022)The rapid growth in consumption and use of electronics has resulted in E-waste becoming one of the most accelerated global waste streams. Despite high rates of electrical and electronic (EE) recycling, Norway is one of the ... -
Understanding the Barriers to Reuse: A Qualitative Study of Reuse Potential in the Norwegian EE Industry
(Master thesis, 2022)We want to express our gratitude to the Informants for their time, insight, and willingness to contribute to our thesis. Additionally, we would like to thank Ingrid for being a valuable sparring partner in brainstorming ... -
Understanding the IKEA Warehouse Processes and Modeling using Modular Petri Nets
(Peer reviewed; Journal article, 2020)Nowadays, large warehouses handle a huge number of products. Handling the enormity and different types of (range) products also demand complex warehouse processes. In this paper, the IKEA warehouse in Stavanger, Norway, ... -
Understanding the impact of sustainable energy transition on risk acceptability and tolerability
(Masteroppgave/UIS-SV-ISØP/2020;, Master thesis, 2020-06)Risk analysis helps to estimate the level of risk of a given situation, and to determine if the risk is acceptable, tolerable, or unacceptable. At this stage, the consideration of individual or societal factors becomes ... -
Understanding the implications of low knowledge and high uncertainty in risk studies
(Peer reviewed; Journal article, 2023-11)Risk analysis has existed for thousands of years and will continue to grow in importance across professions and industries. Of special importance is the need to understand and manage risk when there is low knowledge and ...