Fakultet for ingeniørvitenskap og teknologi: Nye registreringer
Viser treff 201-220 av 1010
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Co-simulation-based optimal reactive power control in smart distribution network
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-30)The increasing integration of distributed energy resources such as photovoltaic (PV) systems into distribution networks introduces intermittent and variable power, leading to high voltage fluctuations. High PV integration can also result in increased terminal voltage of the network during periods of high PV generation and low load consumption. These problems can be solved by optimal utilization ... -
A Two-Stage Decision-Support System for Floating Debris Collection in Reservoir Areas
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-14)The accumulation of floating debris is one of the main challenges of water conservancy projects, which may pollute the vulnerable ecosystem of the reservoir area and impose significant risks on waterway transportation and dam operations. Due to the dynamicity and uncertainty caused by water flow, the collection of floating debris is much more complicated than on-land waste collection. In this paper, ... -
Supply Chain Control Tower and the Adoption of Intelligent Dock Booking for Improving Efficiency
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-13)Poor coordination at distribution centers is a prime source of supply chain delays and energy waste that can be avoided through real-time planning and enhanced visibility. As a modern logistics topic with implications for supply chain transformation, Intelligent Dock Booking (IDB) coordinates the incoming and outgoing shipments at distribution centers. The research on IDB is at the early development ... -
Real-Time Voxel-based 2D to 3D CT Visualisation Framework for Volumetric Capacity Estimation
(Journal article; Tidsskriftartikkel, 2022)Over the decades medical analyses have grown in importance and practice possibilities. Digital operations like split-image procedures have become an integral part of modern medical practices and are still gaining momentum. Through the application of this technique medical computed tomography (CT) and magnetic resonance imaging scans (MRI) can be converted to three-dimensional bodies. This paper ... -
A Co-simulation Procedure for Optimal Reactive Power Control in Active Distribution Networks
(Chapter; Bokkapittel, 2023)Distribution grids are subject to a drastic evolution in their operating conditions due to the high integration of renewable energy resources (RES) and their ability to regulate voltage. To cope with this issue, modern solar photovoltaic (PV) systems are equipped with smart inverters enabled with communication capabilities that allow the coordinated operation to offer services such as controlling ... -
Computational fluid dynamics - a stepping stone of multiphysics
(Conference object; Konferansebidrag, 2022) -
Statistical Prediction of Rate Constants for the Pyrolysis of High-Density Plastic Waste
(Conference object; Konferansebidrag, 2022)The 400 million tons of waste plastic are disposed of around the world. A study reported by SINTEF estimates that the Norwegian fishing fleet dumps around 380 tons of plastic material in the ocean each year. This waste is increasing at an alarming rate, threatening aquatic life, polluting the environment, and causing serious diseases. Since this waste includes hydrocarbons and is a massive source ... -
Using Infrared Thermography and Multiphysics Modelling to Investigate Ice
(Conference object; Konferansebidrag, 2022) -
Best Venue to Disseminate Multiphysics Research: The International Journal of Multiphysics
(Conference object; Konferansebidrag, 2022)The International Journal of Multiphysics publishes peer-reviewed original research articles, review papers and communications in the broadly defined field of Multiphysics. The emphasis of this journal is on the theoretical development, numerical modelling and experimental investigations that underpin Multiphysics studies. The scope of the journal is to address the latest advances in theoretical ... -
The International Conference of Multiphysics 2023
(Conference object; Konferansebidrag, 2022)The objective of The International Conference of Multiphysics is to share and explore findings on mathematical advances, numerical modelling and experimental validation of theoretical and practical systems in a wide range of applications. The scope of the conference is to address the latest advances in theoretical developments, numerical modelling and industrial application which will promote ... -
Conceptual Design of Ice Detection/Mitigation System Based on Infrared Thermography
(Conference object; Konferansebidrag, 2022)Ice accretion has been a persisting issue in cold regions and poses a threat to onshore and offshore infrastructure, especially to sensitive equipment and personnel safety. Thermal infrared imaging (thermography) can be used as a non-destructive, non- invasive technique to determine the presence and thickness of ice over a surface. The paper presents early-stage experiment results with a FLIR® Lepton ... -
Comparing RANS with LES - AMR Study in Indoor Bio-aerosol Transmission
(Conference object; Konferansebidrag, 2022)The study presents the multiphysics modeling of bio-aerosols generated from human respiratory impulses such as coughing, sneezing, breathing, and talking. These droplet-packed viruses exploit the influence of airflow for effortless transmission, rendering them a potential health risk to individuals in the same indoor environment. To gain insight into the transmission of these airborne particles, ... -
Concept Validation of Windtech 'Cold' Sensation Measurement Device
(Conference object; Konferansebidrag, 2022)Prolonged 'cold' exposure poses numerous challenges for industrial operations, human survival, and living convenience. The impact of the cold cannot be quantified just based on temperatures; however, other factors such as wind speed, humidity, and irradiance have to be considered. Therefore, efforts have been made to develop combined indices, such as wind chill temperature (WCT), AccuWeather RealFeel® ... -
Investigation of Composite Mechanical Properties from Additive Manufacturing
(Conference object; Konferansebidrag, 2022)Manufacturers consider carbon fiber as a wonder material for the world's economy. Its distinctive combination of high strength and low weight has helped drive the wind power revolution and make aircraft and ships more fuel-efficient. In addition, the carbon fiber structures can function longer and are more rigid than the traditional metallic models, making them more resilient in cold and more efficient ... -
Experimental study on the surgical microenvironment in an operating room with mixing ventilation under positive and negative pressure
(Chapter; Bokkapittel, 2021)Due to the outbreak of Covid-19, negative pressure operating room (NPOR) are strongly recommended to be applied to prevent spreading virus from infected patients to adjacent rooms during surgery procedures. However, there have been few experimental studies on the effect of OR pressure difference on the surgical microenvironment. This study aims to experimentally investigate the airflow distribution ... -
Iron ore dust as a natural pigment in concrete with RCA for artwork application
(Chapter; Bokkapittel, 2022)A The innovative idea of utilization of iron ore dust (IODust), characterized by red hue typical for Narvik, came up during designing artwork for The Arctic University of Norway campus Narvik. The use of waste from iron ore production as a natural pigment was completed by partial replacement of natural aggregates (NA) by recycled concrete aggregates (RCA) to achieve a higher level of material ... -
Modelling and analysis of long cables on the generator side of generator transformers
(Master thesis; Mastergradsoppgave, 2023-05-22)Denne oppgaven presenterer en studie om modellering og analyse av lengre kraftkabler på generatorsiden av en enhetstransformator i et generisk kraftsystem. Studien fokuserer på det teoretiske rammeverket som er nødvendig for å forstå problemet. De teoretiske delene inkluderer grunnleggende elektriske sannheter og deres effekter på hovedkomponentene i et kraftsystem. Den gjenværende teorien ... -
Analysis of early-age properties of geopolymers with various waste materials
(Master thesis; Mastergradsoppgave, 2023-05-14)As the demand for concrete increases to meet the expanding need, the environmental impact of its production cannot be ignored. The use of ordinary Portland cement (OPC) is known to deplete natural resources and release large amounts of CO2 into the atmosphere. Geopolymer concrete (GPC), made from waste and industrial by-products, has shown the potential to overcome the environmental issues associated ... -
Analyse og optimalisering av varmesystem ved Vigør Rehabiliteringssykehus
(Master thesis; Mastergradsoppgave, 2023-05-12)Grunnet økningen i energipriser og økt press om å nå klimamål, har energiøkonomisering i bygg blitt et samfunnsaktuelt tema. Masteroppgaven bruker Vigør Rehabiliteringssykehus vannbårne varmeanlegg som et eksempelstudie, der formålet med oppgaven er å forenkle driften, redusere energiforbruket og kutte energikostnadene tilknyttet varmeanlegget. Siden 2000-tallet er et er gjort en rekke forsøk på å ... -
A Two-Stage Deep Modeling Approach to Articulatory Inversion
(Chapter; Bokkapittel, 2021-05-13)This paper proposes a two-stage deep feed-forward neural network (DNN) to tackle the acoustic-to-articulatory inversion (AAI) problem. DNNs are a viable solution for the AAI task, but the temporal continuity of the estimated articulatory values has not been exploited properly when a DNN is employed. In this work, we propose to address the lack of any temporal constraints while enforcing a ...