Fakultet for teknologi, naturvitenskap og maritime fag: Nye registreringer
Viser treff 61-80 av 1678
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Short-Term Production Optimization for Electric Submersible Pump Lifted Oil Field With Parametric Uncertainty
(Peer reviewed; Journal article, 2023)This paper uses a scenario-based optimization method to address the Daily Production Optimization from an Electric Submersible Pump lifted oil field under the presence of uncertainty. The primary contribution of this work ... -
A robust model predictive control with constraint modification for gas lift allocation optimization
(Peer reviewed; Journal article, 2023)This paper presents a novel approach for implementing a robust real-time optimization framework under the presence of parametric uncertainty. Conservativeness is an inevitable drawback of a robust control approach. Therefore ... -
Dataset from long-term air quality monitoring in the World Natural Heritage Geirangerfjord, Western Norway (AQM-G)
(Peer reviewed; Journal article, 2023)Here, we present a datapaper containing observational air quality and meteorological data related to our long-term air quality monitoring program at the UNESCO Natural World Heritage Site Geirangerfjord, Western Norway. ... -
Consistent imprints of elevation, soil temperature and moisture on plant and arthropod communities across two subarctic landscapes
(Peer reviewed; Journal article, 2023)1. Factors shaping arthropod and plant community structure at fine spatial scales are poorly understood. This includes microclimate, which likely plays a large role in shaping local community patterns, especially in ... -
Characterization and Validation of a Lyophilized Loop-Mediated Isothermal Amplification Method for the Detection of Esox lucius
(Peer reviewed; Journal article, 2023)In many ways, globalization is beneficial, but in one way, it promotes the spread of alien (invasive) species through international trade and transport. In different habitats, Esox lucius (northern pike) can be considered ... -
Comparative evaluation of loop-mediated isothermal amplification and PCR for detection of Esox lucius housekeeping genes for use in on-site environmental monitoring
(Peer reviewed; Journal article, 2023)Esox lucius (northern pike) is an invasive species in fresh water and causes extreme impacts in the local habitat. Northern pike easily replaces the local native species and disrupts the regional ecosystem. Traditionally, ... -
Annual ring width in the arctic-alpine dwarf-shrub species Salix herbacea - dataset from long-term alpine ecosystem research in central Norway (Ltaer-no)
(Peer reviewed; Journal article, 2023)Here we present a datapaper containing microscopically measured data of annual ring widths in the arctic-alpine dwarf-shrub species Salix herbacea (central Norway). The dataset will be updated with future measurements. -
Enhanced demand side management for solar-based isolated microgrid system: Load prioritisation and energy optimisation
(Peer reviewed; Journal article, 2023)A novel control mechanism is presented for rural microgrids, standing out in the current literature with its advanced approach to load prioritisation and energy allocation. The system's main goal is to maximise energy ... -
Improved Crystallinity of Annealed 0002 AlN Films on Sapphire Substrate
(Peer reviewed; Journal article, 2023)AlN is a piezoelectric material used in telecommunication applications due to its high surface acoustic wave (SAW) velocity, stability, and mechanical strength. Its performance is linked to film quality, and one method to ... -
Power Sharing in Three-Level NPC Inverter Based Three-Phase Four-Wire Islanding Microgrids With Unbalanced Loads
(Peer reviewed; Journal article, 2023)The droop-based control schemes are widely used for power-sharing and control of the isolated microgrids. The conventional droop control scheme with inner current and voltage controllers can work effectively under ideal ... -
Sliding Mode Controller Applied to Autonomous UAV Operation in Marine Small Cargo Transport
(Peer reviewed; Journal article, 2023)Unmanned aerial vehicles (UAVs) have been used in different applications due to their flexibility in maneuvering and performing missions. However, they can face external disturbances, such as wind, which can cause physical ... -
A Novel Framework To Evaluate and Train Object Detection Models for Real-Time Victims Search and Rescue at Sea With Autonomous Unmanned Aerial Systems Using High-Fidelity Dynamic Marine Simulation Environment
(Chapter, 2023)This work presents a novel framework providing the ability to control an Unmanned Aerial System (UAS) while detecting objects in real-time with visible detections, containing class names, bounding boxes, and confidence ... -
Measurement disturbance and conservation laws in quantum mechanics
(Peer reviewed; Journal article, 2023)Measurement error and disturbance, in the presence of conservation laws, are analysed in general operational terms. We provide novel quantitative bounds demonstrating necessary conditions under which accurate or non-disturbing ... -
The Post-Pandemic Era of Digital Teaching: A Qualitative Study of Teachers' Perspectives
(Peer reviewed; Journal article, 2023)As time passes, our society has embraced living with the highly infec- tious Covid-19 virus. As of March 2022, most restrictions have been lifted in Norway, and life is slowly returning to normal. Students are returning ... -
Demonstration of CO2 Capture Process Monitoring and Solvent Degradation Detection by Chemometrics at the Technology Centre Mongstad CO2 Capture Plant
(Peer reviewed; Journal article, 2023)Solvent management is one of the important current challenges in post combustion carbon capture (PCC) technology development. Using large-scale 1960 h test campaign data (Technology Centre Mongstad, Norway, 2015 MEA Test), ... -
Release of liquid CO2 from the bottom of a duct
(Peer reviewed; Journal article, 2023)This paper presents experimental results of the rapid phase transition of liquid CO2 released from the bottom of a small rectangular duct (BR). The aim is to consider the factors influencing the phase transitions and the ... -
Sustainability analysis and simulation of a Polymer Electrolyte Membrane (PEM) electrolyser for green hydrogen production
(Chapter, 2023)In recent years, green hydrogen has emerged as an important energy carrier for future sustainable development. Due to the possibility of not emitting CO2 during its generation and use, hydrogen is considered a perfect ... -
DroneLibrary: Multi-domain Drone Modeling in Modelica
(Chapter, 2023)In the development of complex, novel electrified aerial systems such as Unmanned Aerial Vehicles (UAVs) and electric vertical take-off and landing (eVTOL) systems, multi-domain modeling and simulation studies can provide ... -
Digital twin in power system research and development: Principle, scope, and challenges
(Peer reviewed; Journal article, 2023)In order to address the issues that arise in modern power systems, such as system dynamics, stability, control, efficiency, reliability, economy, planning and policy, and so on, efforts have been made to develop new tools ... -
Enhancing Competency and Industry Integration: A Case Study of Collaborative Systems Engineering Education for Future Success
(Peer reviewed; Journal article, 2023)This case study examines the effectiveness and industry relevance of a collaborative systems engineering master’s program in Kongsberg, Norway. Through close collaboration with industry partners, students gain practical ...