Fakultet for naturvitenskap og teknologi: Nye registreringer

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    • Recent Changes in Mid-latitude Wave Propagation 

      Attema, Ronnie (Mastergradsoppgave; Master thesis, 2024-06-12)
      In recent years climate change in the polar areas has attracted a lot of attention. Not only for its consequences in polar areas, but also for its possible effects on lower latitudes. A reduced temperature gradient between the polar areas is expected to weaken the mid-latitude jet stream. This weaker jet stream is hypothesised to lead to a reduction in the propagation velocity of atmospheric Rossby ...

    • Wind resource assessment using LiDAR 

      Osunlola, Oluwatimilehin Israel (Mastergradsoppgave; Master thesis, 2024-06-07)
      This thesis presents a comprehensive wind resource assessment for the expansion of the Fakken wind park in Norway, leveraging Light Detection and Ranging (LiDAR) technology. The measurement campaign conducted from December 2022 to June 2023, aims to detail LiDAR measurement methodologies, analyze collected data, and estimate wind energy production.

    • Dual Radar Detections of Meteors Using Calibrated EISCAT UHF Data 

      Våden, Sara (Mastergradsoppgave; Master thesis, 2024-06-03)
      The atmosphere of Earth experiences a continuous entry of particles of various sizes originating from several sources. Meteoroids, which are called meteors when entering the atmosphere, are particles that can be measured by radars through scattering off the meteor head plasma which forms around the meteor. These measurements can give information on the processes the meteor undergoes as it travels ...

    • Investigation into the photon interaction of small mesospheric dust and its impact on the ionospheric charge balance 

      Nerland, Isabel Maria Sundström (Mastergradsoppgave; Master thesis, 2024-05-31)
      This thesis investigates the charging mechanisms of nano-sized meteoric smoke particles (MSP) in the mesosphere, with a particular focus on the photoionization and photodetachment processes on MSP assuming different materials. The study begins with three theoretical chapters that lay the ground- work for understanding relevant topics like the atmospheric region in question, MSP, the solar ...

    • Pulsating Aurora: Optical observations and modelling of the time-variation of ionospheric response to precipitation of pitch-angle-scattered electrons from the magnetosphere 

      Moe Stangstuen, Silje (Mastergradsoppgave; Master thesis, 2024-01-29)
      This thesis explores the mechanisms governing pulsating auroras by combining observational analysis with theoretical simulations using the AURORA model. The AURORA model simulates electron transport and ionospheric responses, playing a key role in replicating the abrupt onset precipitation of electrons from source altitudes at 3RE, 4.4RE, 6.1RE, and 7.6RE. Eight events of pulsating aurora were ...

    • Annerledes og likeverdig: førstelektorstillingens skjebne under akademias konvensjoner 

      Eriksen, Stig; Hakel, Katja (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-06-07)
      I Norge finnes to karriereveier innen undervisning og forskning i høyere utdanning. Veien fra stipendiat via førsteamanuensis til professor er den mest brukte. Men en tredel av de tilsatte i høyere utdanning er tilsatt i en karrierestige som går fra universitets- eller høgskolelektor via førstelektor til dosent. De to karriereveiene kan sies å være knyttet til ulike kunnskapsregimer. I de siste 20 ...

    • Do Economics Matter in the Flight Deck? A Statistical Analysis 

      Nedrebø, Tord (Master thesis; Mastergradsoppgave, 2024-06-03)
      The aviation industry operates within a dynamic framework influenced by economic factors, safety concerns, and operational considerations. It is an industry easily influenced by global events and geopolitics, making airlines straddle a fine line between profitability and financial ruin. The purpose of this paper is to explore the importance of financial factors in the decision-making processes of ...

    • A conviction in marine operations – a step back in aviation safety? 

      Hjemmen, Mads Waltersdorph (Master thesis; Mastergradsoppgave, 2024-05-30)
      December 2023, the Norwegian court convicted the Officer On Watch on KNM Helge Ingstad after a collision with the tanker Sola TS. This study investigates how a conviction of an operator in naval industry might influence the just culture in the Norwegian aviation industry. A questionnaire was sent to 180 persons January 5th, 2024. Theories on just -and reporting culture are presented. This study will ...

    • Hvordan kan en styrke sikkerhetsbarrieren mennesket i flyoperasjoner? 

      Tolleshaug, Bjørn-Inge (Master thesis; Mastergradsoppgave, 2024-05-27)
      Luftfartens historie er kort. Begynnelsen var preget av modige pionerer som trosset farer for å erobre himmelen. Etter hvert som luftfarten ble en kommersiell virksomhet, kom krav om høy sikkerhet. Etter en lang periode med prioritering av teknisk sikkerhet, er oppmerksomheten nå på sikkerhetsstyring, og på menneskets rolle i ulykker. Den moderne luftfarten er kompleks. Forskere som Reason, ...

    • Modelling potential fluctuations due to filaments in the SOL 

      Martinsen, Elida Veidahl (Master thesis; Mastergradsoppgave, 2024-06-01)
      The filtered Poisson process are often used in analysing the fluctuations in the scrape-off layer. This thesis investigates how the FPP-model represents both the ion saturation current, Jsat and the velocity signals. The signals are simulated using blobmodel [1], with different degree of overlap, for K = 103, K = 104 and K = 105, different amplitudes, set to constant or exponentially distributed, and ...

    • Lederskap og flytryggingskultur - Ledererfaringer fra det norske kampflymiljøet 

      Knutsen, Ørjan (Master thesis; Mastergradsoppgave, 2024-06-03)
      Denne masteravhandlingen undersøker hvordan lederadferd påvirker ivaretakelse og utvikling av flytryggingskultur. Studien er kvalitativ, og datainnsamlingen er gjort gjennom semi-strukturerte intervjuer med ledere i det norske jagerflymiljøet. Problemstillingen det tas utgangspunkt i er «Hvordan jobber operative ledere i kampflyvåpenet for å ivareta og videreutvikle en positiv flytryggingskultur?». ...

    • Good enough for government work? - A master's thesis on airmanship and military pilots' perception of competence. 

      Paulsen, Mattis Ekeland (Master thesis; Mastergradsoppgave, 2024-06-02)
      The purpose of this study was to examine the relationship between characteristics of the job as a pilot in the Royal Norwegian Air Force and how they affect the individual’s perception of competence. The characteristics in question were experience, currency, workload and complexity. The empirical data used in the study (n = 16) was collected through a questionnaire distributed to three operational ...

    • Destruktivt lederskap i luftfarten. En studie om sammenhengen mellom lederatferd og utbrenthet, jobbengasjement og organisasjonsforpliktelse i et flysikkerhetsperspektiv. 

      Steinsli, Stian (Master thesis; Mastergradsoppgave, 2024-05-25)
      Destruktiv ledelse og teorien rundt dette fenomenet er forholdsvis lite utforsket, både generelt, men også i luftfartsbransjen. Det finnes likevel noe forskning som denne studien kan knyttes opp mot. Destruktivt lederskap er til en viss grad utbredt, og denne typen ledelse har vist seg skadelig både for organisasjon og de ansatte. Denne studien belyser mulige sammenhenger mellom destruktiv ledelse, ...

    • Annerledes og likeverdig: førstelektorstillingens skjebne under akademias konvensjoner 

      Eriksen, Stig; Hakel, Katja (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-06-07)
      I Norge finnes to karriereveier innen undervisning og forskning i høyere utdanning. Veien fra stipendiat via førsteamanuensis til professor er den mest brukte. Men en tredel av de tilsatte i høyere utdanning er tilsatt i en karrierestige som går fra universitets- eller høgskolelektor via førstelektor til dosent. De to karriereveiene kan sies å være knyttet til ulike kunnskapsregimer. I de siste 20 ...

    • Methanotroph activity and connectivity between two seep systems north off Svalbard 

      de Groot, Tim; Kalenitchenko, Dimitri Stanislas Desire; Moser, Manuel; Argentino, Claudio; Panieri, Giuliana; Dølven, Knut Ola; Ferré, Benedicte; Svenning, Mette Marianne; Niemann, Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-06-14)
      Understanding methane flux dynamics in Arctic cold seep systems and the influence of oceanic currents on microbial methane-oxidizing bacteria (MOB) is crucial for assessing their impact on Arctic methane emissions. Here, we investigate methane dynamics and associated microbial communities at two cold seep areas, Norskebanken and Hinlopen Trough, North of Svalbard. Methane concentrations and methane ...

    • Reducing Memory Overhead in CRDT for Collaborative Editing 

      Ivanov, Andrei (Mastergradsoppgave; Master thesis, 2024-05-12)
      For peer-to-peer collaborative editing systems utilizing the Conflict-free Replicated Data Type memory consumption can become a significant issue, particularly when handling large files with extensive editing histories. It can lead to performance problems and hinder user productivity, especially in environments with limited resources. This thesis addresses the problem of excessive memory usage and ...

    • Label Propagation in Machine Learning Systems: Providing End-to-End Traceability with Explainable Artificial Intelligence 

      Ingebrigtsen, Marius Johan (Mastergradsoppgave; Master thesis, 2024-05-15)
      Artificial Intelligence (AI) and the underlying Machine Learning (ML) technology is experiencing increased applications in various areas. The training of ML models requires significant amounts of data, and data might contain restrictions regarding their permitted usage. High-performant models are often called black-boxes because of their complex decision-making process. Thus, ML applications threaten ...

    • Bootstrapping the Integrity of Sensor Data Labels at the Microcontroller Level Using Physically Unclonable Functions: Addressing Physical Vulnerabilities in the IoT Domain 

      Monsen, Henrik (Mastergradsoppgave; Master thesis, 2024-05-15)
      Modern decision-making processes across industries today increasingly rely on data-driven insights derived from various sources. As smart devices, sensor tech- nology, and the IoT (Internet of Things) evolve, organizations are progressively leveraging these technologies for data-driven decision-making. However, with the introduction of regulations such as the General Data Protection Regulation (GDPR) ...

    • Training and Model Parameters to Defend against Tabular Leakage Attacks 

      Balasubramanian, Pragatheeswaran (Mastergradsoppgave; Master thesis, 2024-05-15)
      Federated Learning (FL) is a privacy-preserving approach to train machine learning models on distributed datasets across different organizations. This is particularly beneficial for domains like healthcare and finance, where user data is often sensitive and tabular (e.g., hospital records and financial transactions). However, recent research like Tableak highlighted vulnerabilities that can exploit ...

    • Configuring edge device provenance through messaging middleware 

      Øines, Tarald Eide (Master thesis; Mastergradsoppgave, 2024-05-15)
      Integrity of data is important in today as more of societies structure today are distributed and becomes vulnerable to dishonest entities on their edge devices. Using provenance to prove integrity over edge devices and distributed networks is difficult, as it often produces big amounts of data which fills up storage without having a need to be used. Comm2Prov seeks to fix this by combining the ...