• A discipline without a name? Contrasting three fields dealing with hazards and disaster 

      Staupe-Delgado, Reidar; Abdel-Fattah, Dina; Pursiainen, Christer Henrik (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-29)
      A growing number of research fields have been striving for recognition as an academic discipline. Rather than argue that ‘our field’ should also be recognised as such, we stop to ask two fundamental questions. Our first question concerns whether and how disciplinary concerns would benefit research fields dealing with hazards and disasters. Second, we reflect on the implications of not having a broadly ...
    • The Distribution of Heavy Metals in the Sediment of Low Tidal Flat, Eastern Chongming Island, China 

      Lu, Jinmei; Yuan, Fuqing (Journal article; Tidsskriftartikkel; Peer reviewed, 2019)
      The distribution of heavy metals in the tidal flat is of great significance on the estuary environment. This study aims to find the heavy metal distribution mechanism at low tidal flat in Yangtze Estuary, China. 4 sediment cores were collected at low tidal flat of eastern Chongming Island at four seasons spring, summer, autumn and winter. The concentrations of element Al, Cu, Cr, Fe, Mn, Pb, Rb, Zn, ...
    • Drawing lessons from the COVID-19 pandemic: Seven obstacles to learning from public inquiries in the wake of the crisis 

      Eriksson, Kerstin; Staupe-Delgado, Reidar; Holst, Jørgen (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-13)
      On March 11, 2020, the World Health Organization declared the emerging COVID-19 threat a pandemic following the global spread of the virus. A year later, a number of governments are being handed the concluding reports of national public inquiries tasked with investigating responses, mishaps, and identifying lessons for the future. The present article aims to identify a set of learning obstacles that ...
    • Drone-based Bridge Inspection in Harsh Operating Environment: Risks and safeguards 

      Aliyari, Mostafa; Ashrafi, Behrooz; Ayele, Yonas Zewdu (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-30)
      The inability to effectively and systematically identify and measure the damage in bridges will lead to an acceleration and dangerous deterioration of the health state of these structures. To repair and replace the aging and damaged bridge infrastructures, and prevent catastrophic bridge collapse, there is an urgent need to develop reliable, innovative, and efficient approaches to the performance ...
    • A dual linear autoencoder approach for vessel trajectory prediction using historical AIS data 

      Murray, Brian; Perera, Lokukaluge Prasad (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-21)
      Advances in artificial intelligence are driving the development of intelligent transportation systems, with the purpose of enhancing the safety and efficiency of such systems. One of the most important aspects of maritime safety is effective collision avoidance. In this study, a novel dual linear autoencoder approach is suggested to predict the future trajectory of a selected vessel. Such predictions ...
    • Dynamic spare parts transportation model for Arctic production facility 

      Ayele, Yonas Zewdu; Barabadi, Abbas; Barabady, Javad (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-09-14)
      Timely delivery of the required spare parts plays an important role in meeting the availability target and reducing the downtime of production facilities. Spare parts logistics is affected in complex ways while operating in the Arctic, since the area is sparsely populated and has insufficient infrastructure. It is also greatly affected by the distinctive operational environment of the region, ...
    • 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; Bokkapittel, 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 ...
    • The Effect of LNG and Diesel Fuel Emissions of Marine Engines on GHG-Reduction Revenue Policies Under Life-Cycle Costing Analysis in Shipping 

      Taghavifar, Hadi; Perera, Lokukaluge Prasad Channa (Chapter; Bokkapittel, 2023)
      The fuel life cycle involves different phases of extraction/refinery (well to tank: WtT), transport (tank to propeller: TtP), and storage where each of these processes can add a specific amount of emissions to the overall LCCA inventory. During the extraction or operation of machinery on the raw material, the released amount of GHG components is undergoing a change in the generated emissions per ...
    • The Effect of Risk Factors on the Resilience of Industrial Equipmen 

      Barabadi, Abbas; Nori, Ali; Mottahedi, Adel; Rahim Azar, Ali; Zamani, Ali (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-01)
      Recently, to evaluate the response of systems against disruptive events, the application of the resilience concept has been increased. Resilience depicts the system’s ability to return to its normal operational status after the disruption. Various studies in the field of engineering and non-engineering systems have only considered systems’ performance indicators to estimate resilience. Therefore, ...
    • The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit 

      Lu, Jinmei; Leiviska, Tiina; Walder, Ingar (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-28)
      Dry covers can be applied above tailings to reduce and prevent formation of acid mine drainage and leaching of contaminants. Efficiency of covers is affected by different parameters, of which temperature change under climate change context is one. Here, a laboratory column leaching experiment was performed under four temperatures, 5, 10, 14, and 18 °C on unoxidized tailings from Ballangen, Norway. ...
    • The effect of temperature and precipitation on the leaching of contaminants from Ballangen tailings deposit, Norway 

      Lu, Jinmei; Yuan, Fuqing (Journal article; Peer reviewed, 2019)
      Leaching and transport of contaminants from tailings deposit is a highly complex interacting system affected by a suite of environmental factors, among which temperature and precipitation rates linked to climate change are two important parameters. The climate change in the Nordic region is more drastic than other regions. In this study, a laboratory batch leaching experiment was performed on the ...
    • The effect of temperature on the leaching of Cr, Cu, Fe, Ni and Zn from tailings, Ballangen deposit, Norway 

      Lu, Jinmei; Yuan, Fuqing; Leiviska, Tiina (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01)
      In this study, the effect of temperature on the leaching of Cr, Cu, Fe, Ni and Zn from oxidized tailings, Ballangen deposit, Norway, was investigated by a laboratory batch leaching experiment. The leaching was conducted at four different temperatures 5°C, 10°C, 15°C and 20°C and 2 precipitation rates of 8 mm/week and 20 mm/week. The leachates from six leaching cycles were collected, and the concentra- ...
    • Effect of temperature on the leaching of heavy metals from nickel mine tailings in the arctic area, Norway 

      Fu, Shuai; Lu, Jinmei; Walder, Ingar; Wu, Daishe (Journal article; Tidsskriftartikkel; Peer reviewed, 2023)
      The leaching of heavy metals from tailings deposit due to the oxidation of sulphidic tailings and formation of acidic leachate is considered a high risk to the surrounding environment. Temperature plays an important role in the leaching of heavy metals from tailings in changing acid-based environment, especially in the Arctic area. To investigate how the temperature variation affected metal release ...
    • Effects of mooring line breakage on dynamic responses of grid moored fish farms under pure current conditions 

      Cheng, Hui; Li, Lin; Ong, Muk Chen; Aarsæther, Karl Gunnar; Sim, Jaesub (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-17)
      Due to the lack of sheltered area, Norwegian fish farms are expanding to more exposed and remote sites. The severe environmental conditions in exposed sites can increase the risk of structural failure during aquaculture operations. In the present study, the program FhSim is employed to conduct time-domain simulations to investigate structural responses of a single-cage and 1 × 4 multi-cage fish farm ...
    • The effects of uplift and erosion on the petroleum systems in the southwestern Barents Sea: Insights from seismic data and 2D petroleum systems modelling 

      Ktenas, Dimitrios; Nielsen, Jesper Kresten; Henriksen, Erik; Meisingset, Ivar; Schenk, Oliver (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-05)
      In the past three decades, the hydrocarbon prospectivity has been enigmatic in the southwestern Barents Sea as gas discoveries have dominated over oil. However, more recent discoveries indicate oil potential, especially in the Polheim Platform and Hoop Complex areas. Cenozoic uplift and erosion episodes are critical because they control the duration and depth of maximum burial of source rocks and ...
    • Electric Aviation: A review of concepts and enabling technologies 

      Adu-Gyamfi, Bright Appiah; Good, Clara (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-29)
      Electric aviation has become an important area of research following the rapid growth of the aviation industry, which directly corresponds to significant growth in aviation-related emissions. Despite the promising emission reduction potential of electric airplanes, several technological and regulatory challenges restrict the realization of this new regime of sustainable air transport. Significant ...
    • Emergency management competence needs: Education and training for key emergency management personnel in a maritime Arctic environment MARPART2-(MAN), Project Report 2 

      Borch, Odd Jarl; Roud, Ensieh (Research report; Forskningsrapport, 2020)
      This report focuses on competence demands among key management personnel responsible for maritime emergency response. The report has a special focus on competence challenges related to operations in an Arctic environment.
    • Endurance Test on Carbon Film Fixed Resistor under Escalated Voltage Stress 

      Yuan, Fuqing; Lu, Jinmei (Journal article; Peer reviewed; Tidsskriftartikkel, 2018)
      Film fixed resistor is a basic unit in the electronic devices. As it is less frequently failed than other units such as capacitor, the reliability and robustness of it are less concerned both in the academics and in the industries. This paper investigates the endurance of the carbon film fixed resistor. The resistance shift and life of it under the escalated voltage stress level are the aim. A PCB ...
    • Enemy image? A comparative analysis of the Russian federation’s role and position in the leading national security documents of Estonia and the Czech Republic 

      Bartoszewicz, Monika Gabriela; Prucková, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-14)
      States are security-seekers vis-a-vis ‘significant others’ who are cast as enemies in the international system. Usually, the study of the enemy image is connected with relative equilibrium concerning power capabilities. Less attention was given to a situation of a decisive power imbalance. Thus, a question arises whether such a situation will lead to a uniform enemy image? Concomitantly, what is the ...
    • Energy-Efficient Marine Engine and Dynamic Wing Evaluation Under Laboratory Conditions to Achieve Emission Reduction Targets in Shipping 

      Perera, Lokukaluge Prasad Channa; Belibassakis, Kostas (Chapter; Bokkapittel, 2023-09-22)
      There is a requirement to comply with the forthcoming IMO & EU requirements to reduce ship emissions by at least 40% in 2030 compared to the 2008 levels. Such medium-term emission reduction targets can only be achieved by introducing novel technologies into the shipping industry. The SeaTech H2020 project (seatech2020.eu) introduces two main innovations that can support the same emission reduction ...