Browsing Faculty of Science and Technology by Title
Now showing items 1425-1444 of 7037
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Cybersikkerhet i måleverdikjeden for fjellskredvarsling
(Masteroppgave/UIS-TN-ISØP/2020;, Master thesis, 2020-06-15)Digitaliseringsprosessen som Norges vassdrag- og energidirektorat (NVE) nå ønsker å iverksette skal forbedre dagens teknologibruk. Ved hjelp av digitale målere og skyløsning kan NVE gjøre data mer tilgjengelig, effektivisere ... -
Cybersikkerhet i nettselskap. En studie av cybersikkerhet i et menneskelig og organisatorisk perspektiv
(Masteroppgave/UIS-TN-ISØP/2019;, Master thesis, 2019-06-15)Stabil energiforsyning er en kritisk infrastruktur som øvrige samfunnsfunksjoner er fullstendig avhengig av. Kraftbransjen har som resten av samfunnet blitt mer digitalisert og avhengig av IKT-baserte løsninger. Digitalisering ... -
Cyclic production of biocompatible few-layer graphene ink with in-line shear-mixing for inkjet-printed electrodes and Li-ion energy storage
(Peer reviewed; Journal article, 2022)The scalable production of two-dimensional (2D) materials is needed to accelerate their adoption to industry. In this work, we present a low-cost in-line and enclosed process of exfoliation based on high-shear mixing to ... -
Cyclist Posture Optimisation using CFD
(Masteroppgave/UIS-TN-IMBM/2018, Master thesis, 2018-06)A procedure for optimising the posture of a cyclist concerning the drag force predicted by computational fluid dynamics is developed and executed using open-source software only. The computational setup is validated by ... -
Dagens metode for risikostyring og ledelse på Dagkirurgisk avdeling, Hillevåg
(Masteroppgave/UIS-TN-ISØP/2020;, Master thesis, 2020-07-22)Masteravhandlingen omhandler temaene risiko og ledelse. Overgangen fra teori til praksis har vært et interessant område innenfor disse temaene. Ved videre konkretisering ble den Dagkirurgiske avdeling på Hillevåg sett på ... -
Dagens metode for risikostyring og ledelse på Dagkirurgisk avdeling, Hillevåg.
(Masteroppgave/UIS-TN-ISØP/2020;, Master thesis, 2020-07-22)Masteravhandlingen omhandler temaene risiko og ledelse. Overgangen fra teori til praksis har vært et interessant område innenfor disse temaene. Ved videre konkretisering ble den Dagkirurgiske avdeling på Hillevåg sett på ... -
Damages in hollow core floor systems due to deflection of supporting beam and recommended solutions to control damage.
(Master thesis, 2021)Hollow core slabs (HCS) are pre-stressed concrete elements, normally supported by steel or reinforced concrete/pre-stressed concrete beams. Studies have shown that the deflection of the supporting beam may be the reason ... -
Damping estimation of large wind-sensitive structures
(Peer reviewed; Journal article, 2017)The adequacy of two identification techniques to accurately estimate the modal damping ratios (MDRs) from ambient vibration records is assessed for long-span suspension bridges with eigen frequencies close to or below 0.1 ... -
Dashboard for visualization, evaluation and modeling of wellbore and field H2S production
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)For several years, continuously increasing amounts of hydrogen sulfide (H2S) are being produced from numerous fields on the Norwegian Continental Shelf as a result of reservoir souring. Reservoir souring – increasing ... -
Data Accuracy from Well Test Operations
(Masteroppgave/UIS-TN-IPT/2015;, Master thesis, 2015-12-18)This master thesis presents a study on data accuracy from well test operations. All data measuring methods, except bottomhole and surface PVT sampling, is investigated for the accuracy related to procedure and equipment ... -
Data acquisition in hadoop system
(Masteroppgave/UIS-TN-IDE/2010;, Master thesis, 2010)Data has become more and more important these years, especially for big companies, and it is of great bene t to dig out useful information inside. In Oil & Gas industry, there are a lot of data available, both in ... -
Data Analysis for Physical Activity Monitoring
(Masteroppgave/UIS-TN-IDE/2019;, Master thesis, 2019-06)Physical activity is essential for humans for maintaining a healthy and comfortable lifestyle. With science and technological advancements, there comes various guidelines for the amount of physical activity a person ... -
Data and control tuning of a laboratory-scale autonomous drilling rig
(Masteroppgave/UIS-TN-IDE/2018;, Master thesis, 2018-06-15)The main focus of this thesis is to tune a lab scale autonomous drilling rig. The rig requires a robust control architecture that can manage unforeseen risks and problems, and at the same time optimize the systems performance ... -
Data Assimilation Methods in Seismic Inversion
(Masteroppgave/UIS-TN-IER/2018;, Master thesis, 2018-06)Full-waverform inversion (FWI) is a powerful tool for getting high resolution images from seismic data to understand formations and the reservoir characteristics. But the inversion problems usually do not have unique ... -
Data assimilation with soft constraints (DASC) through a generalized iterative ensemble smoother
(Peer reviewed; Journal article, 2022)This work investigates an ensemble-based workflow to simultaneously handle generic, nonlinear equality and inequality constraints in reservoir data assimilation problems. The proposed workflow is built upon a recently ... -
Data center high availability for integrated machine control platforms
(Masteroppgave/UIS-TN-IDE/2014;, Master thesis, 2014-06-12)National Oilwell Varco is a multinational company providing solutions to the oil industry. The main focus in Stavanger office is the Cyberbase chair and control system. This chair is a operators interface with machinery ... -
DATA DRIVEN BHP PREDICTION DURING NORMAL DRILLING AND KICK
(Bachelor thesis, 2023)Accurate bottom hole pressure (BHP) prediction during drilling with and without kick play crucial roles in maintaining the safety and efficiency of drilling operations in the oil and gas industry. Traditional methods for ... -
Data Driven Model Discovery - Petroleum application
(Master thesis, 2023)The SINDy algorithm is a data driven algorithm that discovers dynamical system in data that evolves over time. The method can be utilized for every dataset that evolves over time. In this study we have looked the Lorenz ... -
Data Driven ROP Modeling - Analysis and Feasibility Study
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)Increasing the drilling speed in wells while maintaining the operational safety standards is a challenge that many Petroleum Engineers have undertaken. In recent years, high complexity wells (Horizontal, Extended Reach, ... -
Data Fingerprinting -- Identifying Files and Tables with Hashing Schemes
(Masteroppgave/UIS-TN-IDE/2016;, Master thesis, 2016-06-15)INTRODUCTION: Although hash functions are nothing new, these are not limited to cryptographic purposes. One important field is data fingerprinting. Here, the purpose is to generate a digest which serves as a fingerprint ...