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norskBlar i tittel Institutt for teknologi og sikkerhet
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Teamarbeid under kritiske arbeidsoppdrag. Ein casestudie
(Master thesis; Mastergradsoppgave, 2015-06-01)Denne studien skal undersøke korleis ein kan sikre utføring av kritiske arbeidsoperasjonar, her illustrert gjennom operative redningsteam. Det har vorte hevda at det finnast lite empiri om kva som er avgjerande for at operative team presterar, men at etablert teori om teamarbeid kan brukast for å forklare prestasjon i operative team (Flin, 1996). Samtidig, bèr naturen ved arbeidsoppdraga til operative ... -
Temperature-driven variation in the removal of heavy metals from contaminated tailings leaching in northern Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-31)High amounts of tailings with a low recycling rate are generated during mining and smelting processes, and a lot of environmental problems were caused by heavy metal leaching from tailings. Temperature is a key point in heavy metals leaching, and knowing the effects of temperature on tailings leaching is useful for tailings management. A small-scale batch leaching experiment was conducted at different ... -
Thermal and Mechanical Properties of SK One Component Polyurethane (SKOCP). Determining the Thermal and Mechanical properties of SKOCP in Colder Conditions
(Master thesis; Mastergradsoppgave, 2017-05-30)Polymers have an extreme wide range of potential applications. From artificial heart valves, computer hardware, coating materials, noise damping materials and so on. Polyurethane is one of the such materials with a broad range of applications. A few such applications and properties are, but not limited to, treatment of leakage of an expansion joint, abrasion resistance, anti-freezing performance and ... -
Thermal properties of neoprene and natural rubber in wetsuits
(Master thesis; Mastergradsoppgave, 2023-06-02)Surfers have concurred some of the harshest regions of the world with their surfboard, like the arctic waves of Norway. This is only made possible due to the wetsuit, a critical piece of equipment that enables surfers to stay in frigid waters and temperatures for hours. To understand the thermal behavior of wetsuits, knowledge on the phenomenon of heat transfer, and especially the conductive ... -
Thermal Properties of SK One Component Polyurethane using Experiments and Multiphysics Simulations
(Conference object; Konferansebidrag, 2016-12-08)This study proposes to determine the thermal conductivity of SK One Component Polyurethane (SKOCP) developed by China Institute of Water Resources & Hydropower Research Beijing IWHR-KHL Co. Ltd. SKOCP provides excellent proof of aging and chemical resistance of this material. It is non-toxic, acts as a good anti-seepage, offers anti-abrasion and good anti-freezing performance. In addition, it has ... -
Thermography and tensile tests of steel samples. Study of material properties and internal friction effects
(Master thesis; Mastergradsoppgave, 2018-06-01)The thesis presents analysis of material properties and internal effects in steel samples, with varying temperatures. Uniaxial tensile tests were conducted in both room temperature and low temperatures, to generate graphical measures of the mechanical properties. The steel samples were monitored with thermography throughout the course of the tensile tests, to investigate the heat generation associated ... -
Tilsyn og sikkerheitsstyring. Ein case-studie av tre industriverksemder i Troms
(Master thesis; Mastergradsoppgave, 2017-06-01)Denne studien skal undersøkja korleis tilsynsorgan kan bidra til sikkerheitsstyring i industriverksemder. Sikkerheitsstyring skal vera implementert på alle nivå i ein organisasjon, og prosessen skal skje kontinuerleg (Aven mfl., 2004; Stolzer mfl., 2008). Kva nivå i organisasjonen som tek avgjersler i sikkerheitsstyringsprosessen og kven som tek initiativ til oppdateringar, har vist seg å variera ... -
Time to Rescue for Different Paths to Survival Following a Marine Incident
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-07)The time required for rescue is a critical factor for surviving a marine incident. The regulatory framework, International Maritime Organization (IMO) Polar Code, utilizes a risk-based approach. It states that the vessel operators are to define the time required for rescue but never less than 5 days. Based on experience from the classification society DNV GL, utilization of the minimum requirement ... -
To expect the unexpected – mission impossible? - En studie om beredskapsplanlegging, beredskapsarbeid og uventede hendelser
(Master thesis; Mastergradsoppgave, 2016-06-01)Det å jobbe proaktivt og være i forkant av uønskede og uventede hendelser fremstår som svært viktig fra kommunene sin side da dette er hendelser som ofte fører med seg store og alvorlige konsekvenser, enten i form av menneskeliv, materielle verdier eller kritisk infrastruktur. Hensikten med denne oppgaven er å se på hvordan Sauda og Stavanger kommune tar høyde for uventede hendelser i beredskapspl ... -
Towing of Floating Wind Turbine Systems
(Master thesis; Mastergradsoppgave, 2020-07-11)Towing is an important marine operation and floating wind turbines are the new way forward in our ever-expanding need for energy. In offshore floating wind turbine installation process, transport is an important phase. Presently, the turbines are assembled on shore and then towed to the installation spot one at a time. In this thesis, the theory behind the towing operation, modelling and simulation ... -
Tradisjon og utvikling i samfunnssikkerhetsfaget- mot koherens eller divergens?
(Master thesis; Mastergradsoppgave, 2020-06-14)Samfunnssikkerhet er et fagfelt i utvikling og vi ser en økning i antall institusjoner som tilbyr utdanninger innenfor fagfeltet. Disse utdanningene er etablert på bakgrunn av et behov i markedet som understreker tverrfaglighet og bredde i fagfeltet. Med bakgrunn i dette ser oppgaven nærmere på de ulike fagmiljøene i samfunnssikkerhet og hvordan de står i forhold til hverandre med et spesielt fokus ... -
Training of seafarers working on ships operating in polar waters
(Master thesis; Mastergradsoppgave, 2022-01-11)The aim of this thesis is to identify the competence gaps for seafarers who sail in polar waters have after completing the existing training courses based on the Polar Code. The best way to protect the environment and people in the Polar regions is by increasing the knowledge and competence of the people working in the vulnerable regions to ensure they make the best possible decisions and avoid ... -
Trend effects on perceived avalanche hazard
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-30)Hazard-level forecasts constitute an important risk mitigation tool to reduce loss of economic values and human life. Avalanche forecasts represent an example of this. As for many other domains, avalanche risk is communicated using a color-coded, categorical risk scale aimed at informing the public about past, current, and future risk. We report the results from three experiments in which we ... -
Trends in seismic data acquisition in areas with surface ice
(Peer reviewed; Bok; Chapter, 2019)The Arctic has great significance in relation to the exploration and exploitation of its huge petroleum resources. Seismic surveys are the key part of petroleum exploration. Reflected sound waves are used to produce a 3D subsurface geological model, which helps to take a decision on drilling location for potential hydrocarbon resources. Seismic surveys are very complex operations, and growing energy ... -
Trustworthiness Evaluation Framework for Digital Ship Navigators in Bridge Simulator Environments
(Chapter; Bokkapittel, 2023)The maritime industry is going towards implementing digital navigators, i.e., AI created by machine learning algorithms, on autonomous vessels in the future. Digital navigators can be developed by utilizing machine learning algorithms, e.g., deep learning type neural networks trained by data sets from human navigators. Even though there is significant importance in studying the trustworthiness of ... -
Typical hydrodynamic models for aquaculture nets: A comparative study under pure current conditions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-17)The net is regarded as the most critical component in marine aquaculture facilities as it is the only barrier which protects the environment from fish escapes. Accurate predictions of the net cage deformation and drag force on the nets are needed, both for ensuring fish welfare and for dimensioning of the mooring system. Thus, an appropriate hydrodynamic model is essential. In practice, two types ... -
UAV as an inspection tool for power lines in Troms: Assessment of UAVs as a viable alternative to already established methods for inspection of power lines.
(Master thesis; Mastergradsoppgave, 2018-06-02)Power line inspection is one of the most important things in a modern society, and therefore it is important that it be kept in a functional state. Because of this, many methods are used to keep it that way. There are many factors to consider before using UAVs as a viable alternative to already established methods. Factors such as robustness against harsh weather, limits to its range and battery ... -
Uncertainties in Managing Atmospheric Icing on Power Lines
(Chapter; Bokkapittel, 2023)Icing affects the infrastructure dramatically, especially in the cold region. Therefore, applying effective ice disaster management (IDM) to provide a systematic approach to dealing with atmospheric icing on power lines is essential. It includes preparedness, response, recovery, learning, risk assessment, and prevention. Integral to this management is the accurate prediction and modeling of icing, ... -
Ungdom og høyreekstrem radikalisering på internett - en litteraturstudie. Hvordan kan vi forebygge at unge radikaliseres til høyreekstremisme på nett?
(Master thesis; Mastergradsoppgave, 2022-06-01)Høyreekstreme grupper benytter i stor grad internett og sosiale medier til å rekruttere og radikalisere nye medlemmer. Samtidig har internett blitt en viktig del av de fleste menneskers liv, og særlig barn og unge tilbringer mye tid på ulike nettsteder og sosiale medier. Dette, sammen med det faktum at både Norge og andre europeiske og vestlige land opplever en økning i antall unge som radikaliseres ... -
Unpacking uncertainty in regional avalanche forecasting: A quantitative case study of uncertainty in forecasting regional avalanche danger
(Master thesis; Mastergradsoppgave, 2023-12-10)When assessing a risk, a future event, uncertainty is vital as we cannot know what will happen. Having an active relationship to uncertainty can reduce it and help the decision-makers make informed decisions. Avalanche forecasting is widely used by outdoor recreational and local authorities for emergency preparedness use. Therefore, an additional focus on uncertainty in this field benefits people ...
