Artikler, rapporter og annet (teknologi og sikkerhet): Nye registreringer
Viser treff 141-160 av 336
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Development and Validation of a Safety Leadership Self-Efficacy Scale (SLSES) in Maritime Context
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-21)Extensive studies have highlighted the importance of leadership on safety in the maritime industry. However, current research lacks empirically tested theoretical models with valid and reliable scales for describing and measuring safety leadership in ship operations. This study reports the development and validation process of the first Safety Leadership Self-Efficacy Scale (SLSES) for assessing ... -
Decomposing the Prediction Problem; Autonomous Navigation by neoRL Agents
(Journal article; Tidsskriftartikkel, 2021-07-19)Navigating the world is a fundamental ability for any living entity. Accomplishing the same degree of freedom in technology has proven to be difficult. The brain is the only known mechanism capable of voluntary navigation, making neuroscience our best source of inspiration toward autonomy. Assuming that state representation is key, we explore the difference in how the brain and the machine represent ... -
Finnmark Platform Composite Tectono-Sedimentary Element, Barents Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-16)The Finnmark Platform Composite Tectono-Sedimentary Element (CTSE), located in the southern Barents Sea, is a northward-dipping monoclinal structural unit. It covers most of the southern Norwegian Barents Sea where it borders the Norwegian mainland. Except for the different age of basement, the CTSE extends eastwards into the Kola Monocline on the Russian part of the Barents Sea. <p> <p>The general ... -
Criteria-Based Fuzzy Logic Risk Analysis of Wind Farms Operation in Cold Climate Regions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-12)Different risks are associated with the operation and maintenance of wind farms in cold climate regions, mainly due to the harsh weather conditions that wind farms experience in that region such as the (i) increased stoppage rate of wind turbines due to harsh weather conditions, (ii) limited accessibility to wind farms due to snow cover on roads, and (iii) cold stress to workers at wind farms. In ... -
Comparative study of data-driven short-term wind power forecasting approaches for the Norwegian Arctic region
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-26)This paper conducts a systemic comparative study on univariate and multivariate wind power forecasting for five wind farms inside the Arctic area. The development of wind power in the Arctic can help reduce greenhouse gas emissions in this environmentally fragile region. In practice, wind power forecasting is essential to maintain the grid balance and optimize electricity generation. This study first ... -
Numerical investigation on the cage-to-cage wake effect: A case study of a 4 × 2 cage array
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-12)Aquaculture has been the world’s fastest-growing food producing method and grown to become the second-largest export industry in Norway during the past 40 years. Usually, the high-value fish such as Atlantic Salmon (<i>Salmo salar</i>) is raised in a multi-cage fish farm, where the flow interactions between fish cages exist. In this study, the interactions between fish cages are implemented into the ... -
Challenges Associated with Creeping Disasters in Disaster Risk Science and Practice: Considering Disaster Onset Dynamics
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-12)In this article, we set out to reconcile a general conceptualization of disaster temporalities by drawing on the epitome example of a creeping disaster, namely famine. Our argument is driven by the recognition that slowly manifesting disaster impacts pose distinct challenges for decision makers and researchers while there is a tendency for the disaster literature to overlook the role of disaster ... -
Exploiting more robust and efficacious deep learning techniques for modeling wind power with speed
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-27)Abstract Sound analyses of the nonlinear relationship between wind speed and power generation are crucial for the advancement of wind energy optimization. As an emerging artificial intelligence technology, deep learning has received growing attention from energy researchers for its outstanding ability to provide complex mappings. However, deep neural networks involve complex configurations, ... -
Drawing lessons from the COVID-19 pandemic: Seven obstacles to learning from public inquiries in the wake of the crisis
(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 ... -
Observed and unobserved heterogeneity in failure data analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-08)In reality, failure data are often collected under diffract operational conditions (covariates), leading to heterogeneity among the data. Heterogeneity can be classified as observed and unobserved heterogeneity. Un-observed heterogeneity is the effect of unknown, unrecorded, or missing covariates. In most reliability studies, the effect of unobserved covariates is neglected. This may lead to inaccurate ... -
Performance Quantification of Icebreaker Operations in Ice Management by Numerical Simulations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-15)The paper addresses the problem of quantifying and assessing the effectiveness of icebreaker operations in ice management (IM) using a high-fidelity simulator. The numerical model includes an accurate geometric representation of an icebreaker, a cylindrical protected structure, and a synthetic ice environment. A set of key performance indicators (KPIs) are defined and proposed to quantify the ... -
An Evaluation on Diverse Machine Learning Algorithms for Hourly Univariate Wind Power Prediction in the Arctic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-23)Wind power forecasting is crucial for wind power systems, grid load balance, maintenance, and grid operation optimization. The utilization of wind energy in the Arctic regions helps reduce greenhouse gas emissions in this environmentally vulnerable area. In the present study, eight various models, seven of which are representative machine learning algorithms, are used to make 1, 2, and 3 step ... -
Evaluation of the Climate Forecast System Reanalysis data for hydrological model in the Arctic watershed Målselv
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-13)The high-resolution Climate Forecast System Reanalysis (CFSR) data have recently become an alternative input for hydrological models in data-sparse regions. However, the quality of CFSR data for running hydrological models in the Arctic is not well studied yet. This paper aims to compare the quality of CFSR data with ground-based data for hydrological modeling in an Arctic watershed, Målselv. The ... -
A discipline without a name? Contrasting three fields dealing with hazards and disaster
(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 ... -
Vanadium removal from mining ditch water using commercial iron products and ferric groundwater treatment residual-based materials
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-06)Removal of vanadium from liquid waste streams protects the environment from toxic vanadium species and promotes the recovery of the valuable metal. In this study, real mining ditch water was sampled from a closed vanadium mine (V–Fe–Ti oxide deposit, Finland) and used in sorption experiments at prevailing vanadium concentration (4.66–6.85 mg/L) and pH conditions (7.02–7.83). The high concentration ... -
Impact of temperature on the leaching of sulphate, Co, Fe, Mn, Ni and Zn from the Ballangen tailings deposit, Norway: A laboratory column experiment
(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. ... -
International collaboration for meeting the challenges of huge and cascading disasters
(Conference object; Konferansebidrag, 2021-09)Some crisis have an international impact. How is it possible to enhance collaboration between nations in huge and cascading disasters? We will present Barents Rescue (BR) as an inspiration for our Student Barents Rescue (SBR) and thereafter show examples from a student pilot with an international scenario. -
How and why develop scenarios for training students to use their knowledge in practice?
(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 ... -
Preliminary Hazard Analysis for UAV-assisted Bridge Inspection
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020)Unmanned aerial vehicle (UAV) technology has found its way into a number of civilian applications in the last 20 years, predominantly due to lower costs and tangible scientific improvements. In its application to structural bridge inspection, UAVs provide two main functions. The first, being the most common, detects damage through visual sensors. The 2D imagery data can be used to quickly ... -
Recoverability modeling of power distribution systems using accelerated life models: Case of power cut due to extreme weather events in Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-09)Today’s societies rely on electric power distribution systems. Recent weather events have illustrated that the loss of such service can lead to severe consequences for societies and stakeholders. Hence, to reduce the impact of such extreme events on infrastructure systems and limit the associated losses, it is crucial to design infrastructure that can bounce back and recover rapidly after disruptions ...