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Classification of Targets Using Statistical Features from Range FFT of mmWave FMCW Radars
2021
Radars with mmWave frequency modulated continuous wave (FMCW) technology accurately estimate the range and velocity of targets in their field of view (FoV). The targeted angle of arrival (AoA) estimation can be improved by increasing receiving antennas or by using multiple-input multiple-output (MIMO). However, obtaining target features such as target type remains challenging. In this paper, we present a novel target classification method based on machine learning and features extracted from a range fast Fourier transform (FFT) profile by using mmWave FMCW radars operating in the frequency range of 77–81 GHz. The measurements are carried out in a variety of realistic situations, including p…
Tapology: A Game-Based Platform to Facilitate E-Health and E-Inclusion
2014
Published version of a chapter in the book: Universal Access in Human-Computer Interaction. Aging and Assistive Environments. Also available from the publisher at: http://dx.doi.org/10.1007/978-3-319-07446-7_36 We have developed a tablet computer game app for low vision users that can be used to introduce a platform for gaming, internet and visual rehabilitation to older users who have not had prior experience with information communication technology (ICT). Our target user group is people diagnosed with Age Related Macular Degeneration (AMD). The primary goal of the app is to present a fun and engaging means for participants to engage with Information Communication Technology (ICT). A long…
Hvilke faktorer kan forklare ansattes bruk av sikkerhetstiltak på mobile enheternår de er ute på farten?
2018
Masteroppgave informasjonssystemer IS501 - Universitetet i Agder 2018 Kontekst:Brukeren er ofte omtalt som den største trusselen motinformasjonssikkerhet i virksomheter. I dag bruker de flesteen eller fleremobile enheter på jobben. Sammen med mobile enheter kommer også nye farer knyttet til informasjonssikkerhet,ogdet er derfor svært viktig at ansatte bruker anbefalte sikkerhetstiltaknår de erpå jobben, men også utenfor virksomheten.Målet med studien er å analyserehvilkefaktorersomkan forklare bruk av sikkerhetstiltakpå mobile enheterutenfor organisatoriske rammer («ute på farten»). Målsetting:Denne avhandlingen rapporterer resultaterfra en studie der det er brukt elementer fra kjenteatferd…
An Exact Solution for the Level-Crossing Rate and the Average Duration of Fades of the Envelope of Sum-of-Cisoids Processes
2012
Authors version of an article published in the journal: Procedia Technology. Also available from the publisher at: http://dx.doi.org/10.1016/j.protcy.2012.03.004 Sum-of-cisoids (SOC) processes provide a physically and numerically appealing framework for the modelling and simulation of a wide class of mobile radio channels. This paper is concerned with the problem of finding a general solution for the level-crossing rate (LCR) and the average duration of fades (ADF) of the envelope of SOC processes. Exact expressions are derived for the LCR and the ADF by taking into account that the inphase component, the quadrature component, and the time derivatives of the inphase and quadrature component…
Theoretical and experimental study of novel types of solid oxide fuel cell electrodes
2016
Master's thesis Renewable Energy ENE500 - University of Agder 2016 Solid oxide fuel cells (SOFCs) have the potential to become one of the efficient and costeffective system for direct conversion of a wide variety of fuels to electricity. The performance, stability and durability of SOFCs depend strongly on the materials used for the fabrication of electrodes as well as the fabrication process. For anode supported SOFCs, the tape casting method has been the de facto standard for constructing cell components. Furthermore, organic solvents such as ethanol, propanol, terpineol and poly-ethers are generally used in industrial tape casting as the solvent medium to make the chemical slurries out o…
Overvåking av vitale parametere i sykehus : En sammenligning av manuelle og elektroniske overvåkingssystemer
2018
Masteroppgave i helse- og sosialinformatikk HSI500 - Universitetet i Agder 2018 Adverse events can be avoided by timely recognition of derangements in vital signs. Sørlandet Hospital HF (SSHF) has implemented an Early Warning Score System named "TILT"; 2Early identification of life-threatening conditions”. In 2017 SSHF started a project that tested wireless sensors for continuous monitoring of vital signs on wards. Patients were monitored by sensors and vital signs were also measured by traditional means during the project period. The aim of this study was to examine compliance with the vital signs monitoring protocol, and to examine the benefits of an electronic system. The following quest…
Informasjonsflyt ved mottak og respons på trygghetsalarmer : en casestudie for å undersøke hvilken betydning tilgang på informasjon og informasjonsfl…
2016
Masteroppgave i helse- og sosialinformatikk- Universitetet i Agder, 2016 The theme of this study is security alarms and information flow. The background for the study is estimates regarding an upcoming growing number of security alarms in municipal healthcare services, recommendations on the transition from analogue to digital security alarms, and reports on the current organization of the safety alarms of varying quality and low efficiency (Frantzen, 2014; Fensli, 2015 Kvernland-Berg, 2014). Purpose The aim of this study was to find what importance access to information and information flow had in the working process with security alarms for a future-oriented health services. Method The su…
"Ikke alle piloter flyr" : implementering av telemedisin i norske kommuner
2019
Masteroppgave helse- og sosialinformatikk HSI500 - Universitetet i Agder 2019 Running pilots is a widespread way of conducting innovations in the Norwegian health service, many of these projects are not implemented permanently or lead to lasting changes in services. Solutions based on Telemedicine are being tested, but the implementation rate does not match the existing ambitions. The aim of this study is to gain increased knowledge of some of the factors that are required for pilot projects in Telemedicine to go from pilots to permanent solutions, especially focused on stakeholders and their role. The thesis question is «What is the significance of different stakeholders in the municipalit…
An Ensemble Model for Consumer Emotion Prediction Using EEG Signals for Neuromarketing Applications.
2022
Traditional advertising techniques seek to govern the consumer’s opinion toward a product, which may not reflect their actual behavior at the time of purchase. It is probable that advertisers misjudge consumer behavior because predicted opinions do not always correspond to consumers’ actual purchase behaviors. Neuromarketing is the new paradigm of understanding customer buyer behavior and decision making, as well as the prediction of their gestures for product utilization through an unconscious process. Existing methods do not focus on effective preprocessing and classification techniques of electroencephalogram (EEG) signals, so in this study, an effective method for preprocessing and clas…
Activation of Stainless Steel 316L Anode for Anion Exchange Membrane Water Electrolysis
2023
The increased emphasis on renewable energy has resulted in a surge of R&D efforts into hydrogen and battery research. The intensive electrochemical environment surrounding the anodic oxygen evolution reaction (OER) has plagued both the activity and stability of the catalytic layer, substrate and porous transport layer, ultimately affecting both these industries. Herein, we report the benefits of potential cycling (PC) a 316L stainless steel felt porous transport layer (PTL) for use in anion exchange membrane water electrolysis. The PC increased surface roughness and created a CrFe5Ni2-OxHy layer through the oxidation of iron as shown by SEM, EDS, XPS, XRD and Raman spectroscopy. Post-PC tes…