Browsing Institutt for elektroniske systemer by Title
Now showing items 2070-2089 of 2289
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The role of antiferromagnetic spin axis on magnetic reconstructions at the (111)-oriented La0.7Sr0.3MnO3/ LaFeO3 interface
(Journal article; Peer reviewed, 2018)Engineering of emergent properties at oxide interfaces is an exciting route towards realizing oxide electronics. Such properties are often the result of a balance between cooperating and competing mechanisms in the materials ... -
The use of balconies for facade noise attenuation
(Master thesis, 2021)Målet med masteroppgaven er å undersøke støydempningseffekten til balkonger på fasaden. Dette har blitt gjort gjennom feltmålinger og estimater ved bruk av Catt Acoustics, Nor96, retningslinje 517.521 av Byggforskserien ... -
The use of surfactant-filled mesoporous silica as an immobilising medium for a fluorescence lifetime pH indicator, providing long-term calibration stability
(Journal article; Peer reviewed, 2019)Surfactant filled mesoporous silica is applied as a matrix for immobilizing the fluorescence lifetime pH-indicator acridine. We demonstrate that this type of encapsulation provides a stable and uniform chemical environment ... -
The Use of Ultrasound for the Electrochemical Synthesis of Magnesium Ammonium Phosphate Hexahydrate (Struvite)
(Journal article; Peer reviewed, 2019)With the observed global intensification of the agricultural sector, slurry management has now become a severe problem causing a large amount of pollution due to industrial fertilizers. It is imperative that techniques are ... -
Theoretical analysis of electrostatic energy harvester configured as Bennet's doubler based on Q-V cycles
(Peer reviewed; Journal article, 2023)We present a theoretical analysis of a MEMS electrostatic energy harvester con-figured as Bennet's doubler. The steady-state operation of the circuit can be approximated by a rectangular Q-V cycle in the ideal case or by ... -
Theoretical Analysis of the Processof Doppler and Doppler Rate Estimation in Standard and High Sensitivity GNSS Receivers
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:176, Doctoral thesis, 2011)Due to the capability of the Global Positioning System (GPS) to provide accurate, stablelong-term navigation information, the use of a GPS receiver as a velocity and accelerationsensor has gained an increasing research ... -
Theoretical aspects of resting-state cardiomyocyte communication for multi-nodal nano-actuator pacemakers
(Peer reviewed; Journal article, 2020)The heart consists of billions of cardiac muscle cells—cardiomyocytes—that work in a coordinated fashion to supply oxygen and nutrients to the body. Inter-connected specialized cardiomyocytes form signaling channels through ... -
Theory and System Simulation of the WiMAX
(Master thesis, 2007)OFDM transmission is a multicarrier modulation scheme unsing orthogonal subcarriers, thus increasing the spectral eciency.OFDM has developed into a popular scheme for wideband digital communication systems, such as WiMAX. ... -
Theory, Simulation and Measurement of Wireless Multipath Fading Channels
(Master thesis, 2007)Multipath fading is a very common phenomenon in signal transmission over wireless channels. When a signal is transmitted over multipath channels, it is subject to reflection, diffraction and refraction. This results in ... -
Thickness dependent uniaxial magnetic anisotropy due to step-edges in (1 1 1)-oriented La0.7Sr0.3MnO3 thin films
(Journal article; Peer reviewed, 2019)The magnetic anisotropy of films of La0.7Sr0.3MnO3 grown on vicinal (1 1 1)-oriented SrTiO3 substrates are investigated. For temperatures above the tetragonal – cubic structural phase transition temperature of the substrate, ... -
Three 10W C-band Power Amplifier Alternatives for use in TT&C-Transmitters
(Master thesis, 2015)This thesis describes the first stage in designing and realizing three 10W C-band power amplifier alternatives based on the GaN-technology for use in Kongsberg Norspace future TT&C-transmitters. The operational frequency ... -
Three-dimensional magnetotelluric modelling in a mixed space-wavenumber domain
(Peer reviewed; Journal article, 2022)We have developed a new 3D magnetotelluric modeling scheme in a mixed space-wavenumber domain. The modeling scheme is based on using a 2D Fourier transform along two horizontal directions to solve a vector-scalar potential ... -
Three-dimensional parabolic equation model for seismo-acoustic propagation: Theoretical development and preliminary numerical implementation
(Journal article; Peer reviewed, 2017)A three-dimensional (3D) parabolic equation (PE) model for sound propagation in a seismo-acoustic waveguide is developed in Cartesian coordinates, with x, y, and z representing the marching direction, the longitudinal ... -
Throughput and delay analysis of HARQ with code combining over double Rayleigh fading channels
(Journal article; Peer reviewed, 2018)This paper proposes the use of hybrid automatic repeat request (HARQ) with code combining (HARQ-CC) to offer reliable communications over double Rayleigh channels. The double Rayleigh fading channel is of particular interest ... -
THz time domain spectroscopy of materials in reflection and transmission
(Master thesis, 2017)This thesis presents and describes various improvements to a Terahertz time domain spectroscopy setup using plasma filament for generation and free space electro optic sampling for detection. By performing measurements ... -
Tilstandsanalyse av separator
(Master thesis, 2006)Separatorer er sentrale elementer i olje- og gassproduksjon. De er også gjenstand for betydelige driftsproblemer, og dagens metoder for tilstandsovervåkning fungerer ikke tilfredsstillende. Akustisk tilstandsovervåkning ... -
Time Diversity Passive Time Reversal for Underwater Acoustic Communications
(Journal article; Peer reviewed, 2019)Underwater acoustic signal propagation is greatly affected by source-receiver motion, surface variations, and water column variabilities, which make the underwater acoustic communications very challenging. A passive time ... -
Time lapse seismic analysis of the Tohoku-Oki 2011 earthquake
(Journal article, 2019)A detailed time lapse seismic analysis of subsurface movements is presented using seismic 2D lines acquired prior to and after the Tohoku-Oki earthquake offshore Japan in 2011. Estimated movements of the seabed from the ... -
Time-Aware Distributed Sequential Detection of Gas Dispersion via Wireless Sensor Networks
(Peer reviewed; Journal article, 2023)This work addresses the problem of detecting gas dispersions through concentration sensors with wireless transmission capabilities organized as a distributed Wireless Sensor Network (WSN). The concentration sensors in the ... -
Time-domain spectroscopy of KTiOPO4 in the frequency range 0.6 - 7.0 THz
(Journal article; Peer reviewed, 2019)We report on THz time-domain spectroscopy measurements of flux grownKTiOPO4in the frequency range 0.6–7.0 THz (20 to 240 cm−1). Our results compare well with earlierRaman and far-infrared measurements. We theorize that the ...