Viser treff 125-144 av 309

    • Hazards identification and risk assessment for UAV– assisted bridge inspections 

      Aliyari, Mostafa; Ashrafi, Behrooz; Ayele, Yonas Zewdu (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-01-07)
      Unmanned Aerial Vehicles (UAV) technology has found its way into several civilian applications in the last 20 years, predominantly due to lower cost and tangible scientific improvements. In its application to structural bridge inspection, UAVs provide two main functions. The first, being the most common, detect damage through visual sensors. The 2 D image data can be used to quickly establish a basic ...
    • “Here, I will stay until I die”—exploring the relationship between place attachment, risk perception, and coping behavior in two small Norwegian communities 

      Lie, Leikny Bakke; de Korte, Laurien; Pursiainen, Christer Henrik (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-25)
      This empirical study explores the interplay between place attachment, risk perception, and coping behavior, within two small Norwegian communities exposed to flash flooding. Through a mixed-methods narrative approach, we found that most of our respondents exhibited positive attachment to their communities, aligning with previous studies in rural settings. Using a conceptual model of place attachment ...
    • Higher Education and the Changing Situation of Societal Security in the Baltic Sea Region 

      Pursiainen, Christer Henrik; Abdel-Fattah, Dina; Staupe-Delgado, Reidar (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-27)
      While concepts like risk and crisis management have grown ubiquitous at all levels of government, they have also cemented their place in academia as interdisciplinary fields of study in higher education. In the Baltic Sea Region (BSR), these types of educational programmes are typically labelled under the umbrella term ‘societal security’ in English. This article provides a succinct depiction ...
    • A Holistic View of Health Infrastructure Resilience before and after COVID-19 

      Barabadi, Abbas; Mohammad Hossein, Ghiasi; Qaranhasanlou, Ali Nouri; Adel, Mottahedi (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04)
      Background: Large-scale events such as COVID-19 show that there are situations that can lead to huge stress on health infrastructure systems (HIS). The pandemic reveals that it is very difficult to protect HIS from all kinds of possible hazards. They can be unpredictable and spread rapidly; hence, it is hard to find an effective mitigation strategy to completely protect society and its important ...
    • How and why develop scenarios for training students to use their knowledge in practice? 

      Nilsen, Aud Solveig (Conference object; Konferansebidrag, 2021-09)
      To be able to handle crisis and risks there is a need for different skills. We will focus on learning by combining theory and practice. Since NEEDS is a disaster management community, scenarios in line with this theme are wanted.<p> <p>This colloquium can be an experience transfer between educators that work with scenario-based training and want to develop this further. Drawing on different ...
    • 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 ...
    • Ice Detection of Pure and Saline Ice Using Infrared Signature 

      Rashid, Taimur; Khawaja, Hassan Abbas; Edvardsen, Kåre (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11-30)
      The paper shows the possible implementation of an Infrared (IR) ice detection technique. In respect of safety in marine operations, saline ice detection can be significant for automated de-icing systems. Experimentation is performed to observe and detect saline and pure ice samples. The discussed detection mechanism is unique and differs from passive IR detection by introducing the self-heating ...
    • Ice Detection Setup Using Infrared and Active Heating 

      Rashid, Taimur; Khawaja, Hassan Abbas; Edvardsen, Kåre (Conference object; Konferansebidrag, 2015)
      Considering the cold environment operations, ice accretion can occur at a rapid pace and can adversely affect the operations. In such scenario, ice detection is useful for the ice mitigation and removal upon the marine and offshore structures. Various techniques exist in the literature to detect the icing mainly utilizing its physical or electromagnetic properties. The parameters measured by these ...
    • Identifying hazards to include in risk analyses 

      Leonhardsen, Mette; Olsen, Odd Einar Falnes; Nilsen, Aud Solveig (Bokkapittel; 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 ...
    • Impact of and solutions to effects of climate changes for Longyearbyen, Svalbard, Norway 

      Winther, Susanna N; Gudmestad, Ove Tobias (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-21)
      Climate changes forces us to make significant mitigation and adaptation measures. As temperature rises and the environmental conditions changes, a variety of challenges occur. Across the whole globe, harming consequences are already being experienced. The Arctic region is particularly vulnerable to changes in Earth’s climate system, especially because of the albedo effect, and the region is ...
    • Impact of increasing share of wind energy on Nordic electrical energy market predictions 

      Chen, Hao (Conference object; Konferansebidrag, 2022-10-14)
    • The impact of safety factors on decision-making in maritime navigation 

      Xue, Hui; Røds, Johan-Fredrik; Batalden, Bjørn-Morten Erdal (Journal article; Tidsskriftartikkel; Peer reviewed, 2023)
      Approximately 85% of maritime accidents are accounted for by navigation accidents, caused by human errors such as mistakes in impropriate decision-making. Decision-making skills are the key to safe sailing. However, the assessment of decisionmaking based on objective measurements is rarely studied. This paper aims to assess the impact of safety factors on decision-making in maritime navigation. ...
    • Impact of temperature on the leaching of sulphate, Co, Fe, Mn, Ni and Zn from the Ballangen tailings deposit, Norway: A laboratory column experiment 

      Lu, Jinmei; Walder, Ingar; Leiviskä, Tiina (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-29)
      Temperature is an important factor affecting the leaching of contaminants from waste deposits, especially in the Nordic region where temperature change is more drastic than other areas. In this study, the impact of temperature variation in the leaching of sulphate, Co, Fe, Mn, Ni and Zn from the Ballangen tailings deposit, northern Norway, was investigated using a column leaching experiment. ...
    • Improving Mechanical Grip of Tyres on Snow and Icy Road Surfaces using Finite Element Method 

      Ludvigsen, Sondre; Khawaja, Hassan Abbas (Conference object; Konferansebidrag, 2016)
      Harsh winter conditions are known to be one of the most challenging environments for driving. Although the number of fatal accidents is higher during the summer compared to the winter in Norway (according to Norwegian Highways Authority), the total number of accidents is higher in the winter season. These accidents mainly happen due to loss traction on snowy or icy road surfaces. The loss of traction ...
    • Improving spam email classification accuracy using ensemble techniques: a stacking approach 

      Adnan, Muhammad; Imam, Muhammad Osama; Javed, Muhammad Furqan; Murtza, Iqbal (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-20)
      Spam emails pose a substantial cybersecurity danger, necessitating accurate classification to reduce unwanted messages and mitigate risks. This study focuses on enhancing spam email classification accuracy using stacking ensemble machine learning techniques.We trained and tested five classifiers: logistic regression, decision tree, K-nearest neighbors (KNN), Gaussian naive Bayes and AdaBoost. To ...
    • Industrial Equipment’s Throughput Capacity Analysis 

      Barabadi, Abbas; Nouri, ali; Hazrati, Ali; Khodayari, Aliasqar; Mokhberdoran, Mahdi (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-01)
      Throughput capacity (TC) is defined as the total amount of material processed or produced by the system in the given time. In practice, full capacity performance for industrial equipment is impossible because the failures are affected and cause a reduction. Therefore, failure interruptions, especially critical ones (bottlenecks), must be detected and considered in production management. From the ...
    • The influence of different fuels and injection methods of RCCI and DCI in hybrid ICE-Battery vehicle performance 

      Taghavifar, Hadi (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-16)
      The incorporation of two recent technologies of using the dual-fuel reactivity controlled compression ignition (RCCI) combustion engine within the hybrid electric vehicle (HEV) is practiced to show how this combination can reduce the emission and enhance the thermal efficiency of the system. In particular, the heat transfers from the engine wall and the exhaust heat flow from the engine under ...
    • Infrared Detection for Anti-Icing Systems in Ship Operations 

      Rashid, Taimur; Khawaja, Hassan Abbas; Edvardsen, Kåre (Conference object; Konferansebidrag, 2014)
    • Infrared Thermal Signature Evaluation of a Pure and Saline Ice for Marine Operations in Cold Climate 

      Rashid, Taimur; Khawaja, Hassan Abbas; Edvardsen, Kåre; Mughal, Umair Najeeb (Peer reviewed; Journal article; Tidsskriftsartikkel, 2015)
      Marine operations in cold climates are subjected to abundant ice accretion, which can lead to heavy ice loads over larger surface area. For safe and adequate operations on marine vessels over a larger area, remote ice detection and ice mitigation system can be useful. To study this remote ice detection option, lab experimentation was performed to detect the thermal gradient of ice with the infrared ...
    • Infrared Thermal Signature Evaluation of a Pure Ice Block 

      Rashid, Taimur; Khawaja, Hassan Abbas; Edvardsen, Kåre; Mughal, Umair Najeeb (Conference object; Konferansebidrag, 2015-08-23)
      Marine operations in cold climates are subjected to heavy ice accretion, which can lead to heavy ice loads causing safety concerns. Atmospheric and sea spray icing can cause severe ice accretion on structures. Ice detection over the relatively larger surface area of marine platforms and vessels could be significant for ice mitigation and its removal in cold climates. A thermal ice signature ...