Browsing Faculty of Engineering and Science by Title
Now showing items 2439-2458 of 3203
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Real-time computing of power flows and node voltages in electrical energy network using decision trees
(Peer reviewed; Journal article, 2023)In sustainable operation of electrical energy network, it is necessary to compute in real-time power flows and voltages at nodes for prioritizing power injection from clean energy resources. Intermittent renewable energy ... -
Real-Time Detection of Incipient Inter-Turn Short Circuit and Sensor Faults in Permanent Magnet Synchronous Motor Drives Based on Generalized Likelihood Ratio Test and Structural Analysis
(Peer reviewed; Journal article, 2022)This paper presents a robust model-based technique to detect multiple faults in permanent magnet synchronous motors (PMSMs), namely inter-turn short circuit (ITSC) and encoder faults. The proposed model is based on a ... -
Real-Time Fault Diagnosis of Permanent Magnet Synchronous Motor and Drive System
(Doctoral Dissertations at the University of Agder; no. 414, Doctoral thesis, 2023)Permanent Magnet Synchronous Motors (PMSMs) have gained massive popularity in industrial applications such as electric vehicles, robotic systems, and offshore industries due to their merits of efficiency, power density, ... -
Real-time video transmission in UMTS
(Master thesis, 2001)Universal Mobile Telecommunication System is denoted as a 3rd cellular system and has been designed with the objective to be a system with global coverage. With the major improvement of in bandwidth capability the Universal ... -
Reasoning with paper and pencil: The role of inscriptions in student learning of geometric series
(Journal article; Peer reviewed, 2009)The purpose of this article is to analyse how students use inscriptions as tools for thinking and learning in mathematical problem-solving activities. The empirical context is that of learning about geometric series in a ... -
Receiver-Initiated Data Collection in Wake-Up Radio Enabled mIoT Networks: Achieving Collision-Free Transmissions by Hashing and Partitioning
(Journal article; Peer reviewed, 2021)To achieve ultra-low energy consumption and decade-long battery lifetime for Internet of Things (IoT) networks, wake-up radio (WuR) appears as an eminent solution. While keeping devices in deep sleep for most of the time, ... -
Recent Advances in mmWave-Radar-Based Sensing, Its Applications, and Machine Learning Techniques: A Review
(Peer reviewed; Journal article, 2023)Human gesture detection, obstacle detection, collision avoidance, parking aids, automotive driving, medical, meteorological, industrial, agriculture, defense, space, and other relevant fields have all benefited from recent ... -
Recent advances in static output-feedback controller design with applications to vibration control of large structures
(Journal article; Peer reviewed, 2014)In this paper, we present a novel two-step strategy for static output-feedback controller design. In the first step, an optimal state-feedback controller is obtained by means of a linear matrix inequality (LMI) formulation. ... -
Recent Nordic research in mathematics education illustrated by examples from NORMA17
(Peer reviewed; Journal article, 2021)A characterization of recent Nordic research in didactics of mathematics is presented based on the 32 research reports from the Nordic and Baltic countries in the proceedings from NORMA17 (The eighth Nordic conference on ... -
Recognition of Falls and Daily Living Activities Using Machine Learning
(Journal article; Peer reviewed, 2018)A robust fall detection system is essential to support the independent living of elderlies. In this context, we develop a machine learning framework for fall detection and daily living activity recognition. Using acceleration ... -
Recolonization and recovery of an Arctic benthic community subject to mine-tailings deposits
(Peer reviewed; Journal article, 2023) -
Recommendations on a Test Infrastructure for Evaluation of Touchscreen Assistive Technology for Visually Impaired Users
(Chapter; Peer reviewed, 2015)Mobile technologies’ touchscreen allows the use of choreography of gestures to interact with the user interface. Relevant aspects in mobile technology design become crucial when targeting users with disabilities. For ... -
Recommending Services in Pervasive Environments
(Master thesis, 2010)The presence of mobile devices with network connectivity continues to increase in all parts of the world, opening up direct channels to mobile users. The threat of information overload is prevalent, and if not subjected ... -
Recycled aggregates derived from excavation materials — mechanical performance and identification of weak minerals
(Peer reviewed; Journal article, 2022) -
Redesign of Utility Robot for Carbothermic Test Reactor
(Master thesis, 2015)Production of aluminum based on a carbothermic reaction is an exciting field of research. It could potentially reduce the energy consumption of aluminum production drastically. Alcoa Norway Carbothermic has been involved ... -
The Redesigned Serpens, a Low-Cost, Highly Compliant Snake Robot
(Peer reviewed; Journal article, 2022)The term perception-driven obstacle-aided locomotion (POAL) was proposed to describe locomotion in which a snake robot leverages a sensory-perceptual system to exploit the surrounding operational environment and to identify ... -
Reducing whole-body vibration exposure in backhoe loaders by education of operators
(Journal article; Peer reviewed, 2012)Whole-body vibration is a health hazard for operators of construction machinery. The level of whole-body vibration exposure on the operator is governed by three different factors; performance of the suspension system of ... -
Reduction of temperature coefficients in multicrystalline silicon solar cells after light-induced degradation
(Chapter; Peer reviewed, 2015)