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norskBlar i tittel Institutt for teknologi og sikkerhet
Viser treff 266-285 av 505
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Machine learning forecasts of Scandinavian numerical weather prediction wind model residuals with control theory for wind energy
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-22)The quality of wind data from the numerical weather prediction significantly influences the accuracy of wind power forecasting systems for wind parks. Therefore, an in-depth investigation of these wind data themselves is essential to improve wind power generation efficiency and maintain grid reliability. This paper proposes a novel framework based on machine learning for concurrently analyzing and ... -
Management of risks - a Paradox?
(Conference object; Konferansebidrag, 2016-11-23) -
Marine Icing and Anti/De-icing Systems
(Conference object; Konferansebidrag, 2015-12-10)Shipping operations are on the rise in the Arctic region. Due to these increased activities, maritime transport operations are encountering significant challenges with respect to the safety and reliability. These shipping operations are comprised of commercial vessels such as oil tankers, container ships, fishing vessels, tourism cruises, research and offshore exploration vessels and icebreakers In ... -
Marine icing observed on KV Nordkapp during a cold air outbreak with a developing polar low in the Barents sea.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06)Marine icing is a phenomenon that may occur for temperatures below subfreezing where sea spray either is lofted from the sea surface or being generated by waves interacting with a ship or a structure. On a voyage from Tromsø to the waters east of Bjørnøya late February 1987, the Norwegian Coast Guard vessel KV Nordkapp experienced heavy icing due to a polar low that raged over these waters during ... -
Marine Operations in Arctic conditions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023)Marine operations require careful early planning and thereafter detailed planning prior to project execution. The time from initiating an operation to finalization of the activity is typically several days. The activity can only be conducted during limited weather conditions. The planning prior to the offshore operations does, therefore, require accurate weather forecasting. The weather conditions ... -
Marine stewardship and complexity – How to enhance a better process of risk governance in the Norwegian area of the Arctic Ocean?
(Conference object; Konferansebidrag, 2016-01) -
Maritim sikkerhet under internasjonale operasjoner. En casestudie av risikopersepsjon og – kommunikasjon mellom norske rederier og Den Norske Krigsforsikring for Skip
(Master thesis; Mastergradsoppgave, 2018-06-01)Maritim sikkerhet ble spesielt kjent etter utbruddet av somalisk piratvirksomhet i årene etter 2008 (Bueger, 2014). Piratvirksomheten utenfor Somalia har lenge representert en trussel mot den internasjonale handelen på grunn av den fysiske påvirkningen den har på skip og dens besetning, samt den avskrekkende effekten den har på handelen i regionen (Winn & Lewis, 2017). Denne studien har sett nærmere ... -
Maritime safety and the ISM code: a study of investigated casualties and incidents
(Journal article; Tidsskriftartikkel; Peer reviewed, 2013-08-27)Abstract In 1993, the International Maritime Organization adopted the International Safety Management (ISM) Code which requires all shipping companies operating certain types of vessels to establish safety management systems. Nevertheless, two decades later, maritime safety remains a concern. This article studies 94 maritime cases investigated by the Maritime Accident Investigation Branch in the ... -
Maritime Security and Threat Assessments
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12)Maritime security is still a challenge in international trade. In this case‐study we analyze how the Norwegian Shipowners’ Mutual War Risks Insurance Association (DNK) provides Norwegian maritime companies with regional assessments of threat‐levels. Through a survey and a series of interviews, we study factors that affect the communication and perception of threats, in addition to how maritime ... -
Marketing structures and strategies of Nordic SME’s: A Norwegian case study
(Conference object; Konferansebidrag, 2016-10-10) -
MarSpray LiDAR (MSL) for the comprehensive measurement of Sea Spray for Improving the Prediction of Marine Icing in Cold Conditions
(Master thesis; Mastergradsoppgave, 2021-06-01)Marine icing is a very complicated phenomenon, and its prediction, evaluation, and estimation involve many uncertainties. Commonly, the most severe ice accretion is caused by sea spray. A substantial amount of study is present on sea spray ice accretion about modelling and numerical simulations with certain assumptions and not based on comprehensive real-time data. The past techniques used to measure ... -
Masseinnvandring og moderne kriser. En studie av krisehåndtering i Sør-Varanger kommune høsten 2015
(Master thesis; Mastergradsoppgave, 2016-06-01)Denne oppgaven ser på akutt-krisefasen i Sør-Varanger kommune høsten 2015. Hvordan denne krisen ble oppfattet, forstått og håndtert av de involverte aktørene. Dette sees så opp mot våre nasjonale prinsipper for beredskap og krisehåndtering. I denne oppgaven er det også definert hvilken type krise masseinnvandringen til Sør-Varanger kommune høsten 2015 var. Sør-Varanger kommune og andre ... -
Matsikkerhet i Norge. Er forsyningsberedskapen tilstrekkelig?
(Master thesis; Mastergradsoppgave, 2016-06-01)Tittelen på avhandlingen lyder slik: ‘Matsikkerhet i Norge – er forsyningsberedskapen tilstrekkelig?’ Denne avhandlingen omhandler matsikkerhet og en risiko- og sårbarhetsanalyse. Målet var å finne ut hvilken matsikkerhet som er i landet, hva som påvirker den og om forsyningsberedskapen er tilstrekkelig ved en eventuell krise. Målet var også å utføre en risiko- og sårbarhetsanalyse for å se på ... -
Measuring the Sea Spray Flux using High-Speed Camera
(Conference object; Konferansebidrag, 2015-12-10)The sea spray contains water droplets that are produced due to sea waves that collide with the marine structures as well as the breaking of waves due to the strong winds. Similarly, fog and precipitation at sea level may contribute to the phenomenon of sea spray containing water droplets of minuscule sizes. Wind characteristics (speed and direction) also has a direct influence on the speed of water ... -
Mechanical and impact tests of CFRP. An experimental and numerical study of the mechanical properties of CFRP samples with varying temperatures, using Four-point bending, Charpy and Air gun tests
(Master thesis; Mastergradsoppgave, 2017-06-01)With increasing popularity of carbon fiber reinforced polymer (CFRP) over time, the need of research in the field increases along with it. The aim of this project was to study the mechanical properties of CFRP with varying temperature settings. A four-point bending test was performed to find the deflection of CFRP in room temperature, and after being exposed to cold temperature. A numerical test was ... -
A Meta-Perspective on Societal Security & Safety: Ontological, Epistemological, & Axiological Assumptions in Societal Security & Safety Research
(Master thesis; Mastergradsoppgave, 2022-01-04)This thesis explores the ontological, epistemological, and axiological assumptions held by societal security & safety researchers by utilizing the scoping study methodology to select and rapidly assess relevant literature for inquiry about these assumptions. The relevant literature is analyzed according to a framework consisting of several questions related to the metaphysical notions of the author(s), ... -
A Methodological Framework for the Resilience Analysis of Road Transport Networks Exposed to Freezing Rain
(Conference object; Konferansebidrag, 2022)Road transport network is one of the major critical infrastructures to be maintained resilient, since its disruption would not only have direct economic consequences, but it could also lead to domino effects on other critical infrastructures. This study proposes a methodological framework for the analysis of the resilience of road transport networks exposed to natural hazards, in particular to ... -
A methodology for collecting donning times of thermal protective immersion suits intended to be worn by passengers on vessels operating in cold environments
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021)Adequate thermal protection for passengers travelling on-board vessels in cold climate regions, such as that provided by thermal protective immersion suits (TPIS), enhances passenger survivability in emergency situations, in particular those requiring the abandonment of the vessel. As emergency abandonment is a time critical process, it is essential to consider the time required to correctly don the ... -
A methodology for identification of suitable drilling waste handling systems in the Arctic region
(Journal article; Peer reviewed; Tidsskriftartikkel, 2016)As the demands to reduce the environmental impact of oil and gas operations increase in the Arctic region, the need to identify suitable waste handling systems become more essential. The aim of this paper is to propose a methodology for identifying suitable drilling waste handling system, by considering the distinctive operating condition of the Arctic region. The proposed methodology can help the ... -
Midlertidig boredekksarbeidere i olje – og gass –sektoren
(Master thesis; Mastergradsoppgave, 2020-05-26)Arbeidslivet er i stadig utvikling og en økende trend er bruk av midlertidige ansatte fra bemanningsforetak for å spare kostnader og øke fleksibilitet og spesialisering (Milch & Laumann, 2016). Studiens formål er å undersøke hvordan bruk av midlertidige ansatte fra bemanningsforetak påvirker sikkerheten på plattformer, her kalt innretninger, og vil avgrense seg til innleide boredekksarbeidere ...
