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norskArtikler, rapporter og annet (teknologi og sikkerhet): Recent submissions
Now showing items 81-100 of 311
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Predicting Breast Cancer Leveraging Supervised Machine Learning Techniques
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-16)Breast cancer is one of the leading causes of increasing deaths in women worldwide. The complex nature (microcalcification and masses) of breast cancer cells makes it quite difficult for radiologists to diagnose it properly. Subsequently, various computer-aided diagnosis (CAD) systems have previously been developed and are being used to aid radiologists in the diagnosis of cancer cells. However, due ... -
The European Union's responses to the COVID-19 crisis: How to fight a pandemic with the internal market
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-26)In a liberalized market economy, states tend to purchase supplies required for producing publicly funded services, such as healthcare, from the markets instead of producing them themselves. The availability of critical supplies thus becomes a question of supply-side availability and supply chain management, and therefore their availability is conceptualized in terms of security of supply. The European ... -
New insight into air/spray boundary interaction for diesel and biodiesel fuels under different fuel temperatures
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-09)The liquid fuel breakup mechanism in spray injection with ambient air for diesel and biodiesel at different fuel temperatures is studied numerically. We find that biodiesel fuel type injection with low fuel temperature induces more air entrainment volume to the boundary of the spray than diesel fuel injection and higher fuel temperature. Meanwhile, the normalized parcel density for biodiesel is 12% ... -
Experimental and numerical engine cycle setup for a dual fuel hydrogen, methane, and hythane with diesel to assess the effect of water injection and nozzle geometry
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-15)In this study, the potential of gaseous fuels such as hydrogen, methane, and hythane in combination with diesel fuel is assessed in a closed loop thermodynamic framework. An experimental test is conducted with basic diesel fuel and then the model is configured based on the realistic one-cylinder diesel engine to evaluate the robustness and reliability of the simulation. The model is accurate in terms ... -
From European critical infrastructure protection to the resilience of European critical entities: what does it mean?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-03)The article is a public policy analysis of the development of legislation on critical infrastructure in the European Union (EU), covering 27 developed countries. More precisely, it concerns the 2022 CER Directive “on the resilience of critical entities’. This directive replaced the 2008 ECI Directive ‘on the identification and designation of European critical infrastructure and the assessment of ... -
Computer‑assisted management training for emergency response professionals in challenging environments
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-17)Coordinating complex crisis responses generally requires comprehensive skills. When operating in the High Arctic, extreme environments make this task even more challenging. Training for these situations is thus of utmost importance, but such training requires extensive resources for full-scale exercises. Simulation is an alternative that can yield an effective learning process and learning outcomes. ... -
Assessment of the impacts of landscape patterns on water quality in Trondheim rivers and Fjord, Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-29)Due to the impacts of hydrological and ecological processes on water quality, discharges from upstream catchments have induced significant pollution to the recipients. This study aims to investigate the possible pollution sources from catchments with different types of land use and landscape patterns and develop the relationships between water quality and the catchment hydro-geological and ... -
Trend effects on perceived avalanche hazard
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-30)Hazard-level forecasts constitute an important risk mitigation tool to reduce loss of economic values and human life. Avalanche forecasts represent an example of this. As for many other domains, avalanche risk is communicated using a color-coded, categorical risk scale aimed at informing the public about past, current, and future risk. We report the results from three experiments in which we ... -
Adventure-based cruise tourism and emergency response -training for increased polar-water emergency management competence
(Conference object; Konferansebidrag, 2021-11)Nature-based tourism has increased significantly in recent years. The special segment adventure travel has doubled in size, from 10 to 20 percent of the international tourism market. This type of tourism is characterized by visiting remote and spectacular areas, and uniqueness. One of the most popular type of adventure based travel is so-called expedition cruise. The number of cruise vessels is ... -
Computer-assisted management training for professionals in High Arctic SAR -operations.
(Conference object; Konferansebidrag, 2021-11)This paper takes as a starting point the competence needs of managers responsible for the complex crisis response operations in a High Arctic setting. We elaborate on the need for competence on multi-organizational cooperation and coordination at tactical and operational management levels in maritime mass rescue operations (MRO). We look into the special context of High Arctic environments with ... -
Impact of increasing share of wind energy on Nordic electrical energy market predictions
(Conference object; Konferansebidrag, 2022-10-14) -
Lokalt snøskredvarsel for Longyearbyen - Evaluering av nåværende system
(Research report; Forskningsrapport, 2022-10-11)Denne rapporten beskriver og evaluerer det nåværende systemet for snøskredvarsel i Longyearbyen. Evalueringen baserer seg på sammenlikning mot regionalt varsel på Svalbard, lokalvarsel i Europa, samt en retningslinje for lokalvarsel i Sveits. <p> <p>Fokus er rettet mot utarbeidelse og bruk av lokalvarselet, og mulige forbedringer, spesielt knyttet til innhold og struktur. Praktiske forslag ... -
Origin and Development of Seamanship Competence
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06)Seafaring is one of the oldest documented human activities, with a rich heritage created by generations of seamen. The first boats were developed several thousand years ago, based on primitive principles, and they were probably not suitable for other than simple purposes. Analyzing the history of boat building shows a gradual change in designs. These design changes were most likely due to improvements, ... -
Reliability modelling on two-dimensional life data using bivariate weibull distribution: with case study of truck in mines
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017)An engineering system can exhibit two- or multi-dimensions in its lifetime. As the classical univariate distribution cannot model this multi-dimensional characteristic, it is necessary to extend it to multivariate distribution in order to capture the multi-dimensional characteristics. This paper proposes a bivariate Weibull distribution that combines two classical Weibull models by a common exponent. ... -
Determinants, methods, and solutions of evacuation models for passenger ships: A systematic literature review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-02)Passenger ships facilitate the mobility of people at sea and are a significant revenue stream for societies. Simultaneously, they should meet safety standards. One of the main safety pillars is offering passengers a reliable emergency evacuation plan. The International Maritime Organization (IMO) has disseminated guidelines for passenger ships to enhance the evacuation process understanding. Although ... -
Cluster-based ensemble learning for wind power modeling from meteorological wind data
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-17)Reliable and efficient power modeling from meteorological wind data is vital for optimal implementation and monitoring of wind energy, and it is important for understanding turbine control, farm operational optimization, and grid load balance. Based on the idea that similar wind conditions lead to similar wind powers; this paper constructs a modeling scheme that orderly integrates three types of ... -
A rather wild imagination: who is and who is not a migrant in the Czech media and society?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-06)This paper focuses on migrants and migration in the context of the Czech Republic, an ethnically and nationally homogeneous country without significant migration experience. Despite this fact, the issue of migration became very prominent in 2015 and has been an integral part of Czech political and public discourse since then. Although the topic has attracted scholarly interest, but the reflection ... -
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 ... -
Seasonal and Spatial Variability of Atmospheric Emissions from Shipping along the Northern Sea Route
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-25)Large seasonal and spatial variabilities in Arctic shipping and its associated emissions are expected in the future, due to continuous sea ice decline. This study collected ship traffic data and the associated emissions of carbon dioxide (CO2), nitrogen oxides (NOx), sulfur dioxide (SO2), particulate matter (PM), and black carbon (BC) along the Northern Sea Route (NSR) in 2013. The aim is to analyze ... -
An experimental analysis of the impact of thermal protective immersion suit and angle of heel on individual walking speeds
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-16)Background: Incarcerated individuals have poor mental health compared to the general population. Social support has a benefcial efect on mental health. The bufering model proposes that social support facilitates coping under stressful conditions, while the main efects model suggests that belonging to social networks and having positive social interactions are benefcial for mental health. Prisons ...
