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  • Development of strategic asset management planning in the petroleum industry 

    Kusumawardhani, Mayang; Markeset, Tore; Kumar, Rajesh (Tidsskriftsartikkel; Journal article; Peer reviewed, 2017)
    <i>Purpose</i> – Due to the certain risk carried in offshore petroleum installations, the integrity of these installations needs to be maintained at all times. Thus, asset integrity management (AIM) needs to be formulated and monitored to achieve the integrity objective. The purpose of this paper is to study the practices and progression of strategic AIM planning in the petroleum industry. ...
  • Nettverksorganisasjoners betydning for kunnskapstilgang og innovasjon 

    Underthun, Anders; Svare, Helge; Gausdal, Anne Haugen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-04)
    I denne artikkelen undersøker vi om regionale innovasjonsnettverksorganisasjoner (RINOer) bidrar til bedre kunnskapstilgang og innovasjon. Hvilke organiserte aktiviteter eller funksjoner i RINOen er i så fall relevante? Og i hvilken grad påvirker andre kjennetegn ved RINOene eller bedriftene som deltar, et slikt utfall? Bedriftene i studien rapporterer at RINO-deltakelsen har bidratt positivt både ...
  • Identifying hazards to include in risk analyses 

    Leonhardsen, Mette; Olsen, Odd Einar Falnes; Nilsen, Aud Solveig (Book; Chapter, 2018)
    A risk analysis should provide decision makers with information regarding relevant hazards. The initiating phase, where the risk analysts identify hazards to be included in the risk analysis, lays the foundation for the rest of the analysis. This phase is, therefore, of great importance. In this paper, we examine how risk analysts in a municipal setting identified potential adverse events and how ...
  • Ship Performance and Navigation Data Compression and Communication under Autoencoder System Architecture 

    Perera, Lokukaluge Prasad; Mo, Brage (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-21)
    Modern vessels are designed to collect, store and communicate large quantities of ship performance and navigation information through complex onboard data handling processes. That data should be transferred to shore based data centers for further analysis and storage. However, the associated transfer cost in large-scale data sets is a major challenge for the shipping industry, today. The same cost ...
  • Critical infrastructure resilience: A Nordic model in the making? 

    Pursiainen, Christer Henrik (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-19)
    In recent years, there has been a shift in emphasis from critical infrastructure protection to that of resilience. This development reflects the acknowledgment that complete protection can never be guaranteed, and that achieving the desired level of protection is not cost-effective as a rule in relation to the actual threats. This article reviews the responses of four of the five Nordic countries ...
  • Optimization of Pure-Component LNG Cascade Processes with Heat Integration 

    Eiksund, Oddmar; Brodal, Eivind; Jackson, Steven (Journal article, 2018-01-15)
    Liquefaction of natural gas is an energy-intensive process in which the energy efficiency depends on the number of compressors stages and the heat integration scheme. The aim of the study is to systematically evaluate process performance of pure component cascade processes, present optimized designs for all relevant numbers of compression stages and compare energy consumption between processes with ...
  • The effect of drinking water quality on the health and longevity of people-A case study in Mayang, Hunan province, China 

    Lu, Jinmei; Yuan, Fuqing (Peer reviewed; Chapter, 2017)
    Drinking water is an important source for trace elements intake into human body. Thus, the drinking water quality has a great impact on people's health and longevity. This study aims to study the relationship between drinking water quality and human health and longevity. A longevity county Mayang in Hunan province, China was chosen as the study area. The drinking water and hair of local centenarians ...
  • Modelling the transport of oil after a proposed oil spill accident in Barents Sea and its environmental impact on Alke species 

    Lu, Jinmei; Yuan, Fuqing; Mikkelsen, J.D.; Ohm, C; Stange, E; Holand, M (Peer reviewed; Conference object; Chapter, 2017)
    Accidental oil spills can have significant effect on the coastal and marine environment. As the oil extraction and exploration activities increase in the Barents Sea, it is of increasingly importance to investigate the potential oil spill incidents associated with these activities. In this study, the transport and fate of oil after a proposed oil spill incident in Barents Sea was modelled by oil ...
  • A practical guideline for human error assessment: A causal model 

    Ayele, Yonas Zewdu; Barabadi, Abbas (Peer reviewed; Conference object, 2017-12-12)
    Abstract: To meet the availability target and reduce system downtime, effective maintenance have a great importance. However, maintenance performance is greatly affected in complex ways by human factors. Hence, to have an effective maintenance operation, these factors needs to be assessed and quantified. To avoid the inadequacies of traditional human error assessment (HEA) approaches, the application ...
  • International Cooperation on Search and Rescue in the Arctic 

    Sydnes, Are K.; Sydnes, Maria; Antonsen, Yngve (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09)
    SAR in the Arctic is a complex and dynamic cross-disciplinary activity that requires the combined effort of multiple actors with specialized human and technical resources. Due to limited resources and infrastructure in the Arctic, international cooperation is particularly important. This article applies a conceptual framework drawn from regime-theory to study SAR cooperation in the Arctic. More ...
  • A New Introductory Course in the Engineering Education at the University of Tromsø 

    Gjengedal, Arne Ketil; Schive, Tor (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
    In 2011 a new national curriculum for the education of engineers was established in Norway. The objective of the curriculum is to ascertain that engineering education is professionally oriented, integrated, research-based and has a high academic standard. Institutions are instructed to facilitate a holistic approach to the engineering profession, which integrates social science, technology, science ...
  • What similarities can municipalities experience in crisis management? 

    Nilsen, Aud Solveig (Conference object; Konferansebidrag, 2017-06)
    Municipalities have an important role in crisis management. The Norwegian emergency principles of responsibility, parity and proximity are central, and the government expects municipalities to take care of crises in their area in accordance with the civil protection law. Due to the varying natures of different crises, one can expect crisis management to take different paths. This paper challenges ...
  • Oxidative stress in two tropical species after exposure to diesel oil 

    Sardi Sulvarán, Adriana Eva; Sandrini-Neto, Leonardo; da S. Pereira, Leticia; Silva de Assis, Helena; Martins, Cesar C.; Lana, Paulo Da Cunha; Camus, Lionel (Peer reviewed, 2016-08-03)
    Recent offshore petroleum exploration has increased the risks of oil spills worldwide. We investigated biomarker responses to diesel oil exposure in two tropical and subtropical species, the clam Anomalocardia flexuosa and the polychaete Laeonereis culveri. Animals were exposed to oil-spiked sediment at two different concentrations (0.5 L and 1.0 L m−2). Activities of antioxidant enzymes catalase ...
  • Baseline levels of oxidative stress biomarkers in species from a subtropical estuarine system (Paranaguá Bay, southern Brazil) 

    Sardi Sulvaran, Adriana Eva; Renaud, Paul; Lana, Paulo Da Cunha; Camus, Lionel (Peer reviewed, 2016-08-10)
    Offshore petroleum exploration has increased the risks of oil spills in coastal tropical and subtropical habitats. Monitoring tools are needed to assess and protect environmental health. We determined baseline values of antioxidant biomarkers (CAT, SOD, GPx, GST, MDA) for five ecologically relevant species in a subtropical system in southern Brazil. Regional baseline levels are compared with literature ...
  • On RAM performance of production facilities operating under the Barents Sea harsh environmental conditions 

    Naseri, Masoud; Barabady, Javad (Peer reviewed, 2016-05-19)
    Oil and gas (O&G) industry is expanding its activities into Arctic offshore, where is characterised with severe operating conditions and less-developed infrastructure. Such conditions affect the reliability, availability, and maintainability (RAM) of offshore O&G plants, operations, and activities through different scenarios. Plant RAM analysis provides key information for decision-making on, for ...
  • Availability assessment of oil and gas processing plants operating under dynamic Arctic weather conditions 

    Naseri, Masoud; Baraldi, Piero; Compare, Michele; Zio, Enrico (Peer reviewed, 2016-03-19)
    We consider the assessment of the availability of oil and gas processing facilities operating under Arctic conditions. The novelty of the work lies in modelling the time-dependent effects of environmental conditions on the components failure and repair rates. This is done by introducing weather-dependent multiplicative factors, which can be estimated by expert judgements given the scarce data available ...
  • Spatiotemporal patterns of particulate matter (PM) and associations between PM and mortality in Shenzhen, China 

    Zhang, Fengying; Liu, Xiaojian; Zhou, Lei; Yu, Yong; Wang, Li; Lu, Jinmei; Wang, Wuyi; Krafft, Thomas (Peer reviewed, 2016-03-02)
    Background: Most studies on air pollution exposure and its associations with human health in China have focused on the heavily polluted industrial areas and/or mega-cities, and studies on cities with comparatively low air pollutant concentrations are still rare. Only a few studies have attempted to analyse particulate matter (PM) for the vibrant economic centre Shenzhen in the Pearl River Delta. ...
  • Human reliability assessment (HRA) in maintenance of production process: A case study 

    Aalipour, Mojgan; Ayele, Yonas Zewdu; Barabadi, Abbas (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-04-02)
    Human reliability makes a considerable contribution to the maintenance performance, safety, and cost-efficiency of any production process. To improve human reliability, the causes of human errors should be identified and the probability of human errors should be quantified. Analysis of human error is very case-specific; the context of the field should be taken into account. The aim of this study is ...
  • Applicability Extent of 2-D Heat Equation for Numerical Analysis of a Multiphysics Problem 

    Khawaja, Hassan Abbas (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01)
    This work focuses on thermal problems, solvable using the heat equation. The fundamental question being answered here is: what are the limits of the dimensions that will allow a 3-D thermal problem to be accurately modelled using a 2-D Heat Equation? The presented work solves 2-D and 3-D heat equations using the Finite Difference Method, also known as the Forward-Time Central-Space (FTCS) method, ...
  • Analytical and Case Studies of a Sandwich Structure using Euler-Bernoulli Beam Equation 

    Xue, Hui; Khawaja, Hassan Abbas (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11)
    This paper presents analytical and case studies of sandwich structures. In this study, the Euler-Bernoulli beam equation is solved analytically for a four-point bending problem. Appropriate initial and boundary conditions are specified to enclose the problem. In addition, the balance coefficient is calculated and the Rule of Mixtures is applied. The focus of this study is to determine the effective ...

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