Browsing Institutt for elektroniske systemer by Title
Now showing items 2118-2137 of 2349
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The lattice Boltzmann method: Fundamentals and acoustics
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:55, Doctoral thesis, 2014)The lattice Boltzmann method has been widely used as a solver for incompressible flow, though it is not restricted to this application. More generally, it can be used as a compressible Navier-Stokes solver, albeit with a ... -
The Linear Model under Gaussian Mixture Inputs: Selected Problems in Communications
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:157, Doctoral thesis, 2013)Consider a linear model, y = Hx + n, where y is an observed vector, H is a known matrix, x is the unknown vector of interest, and n is noise. Such a linear model can describe, or approximate, a multitude of systems. In ... -
The Mosaic IQ Microarchitecture: A Set-Associative Approach for Efficient Operand Wake-Up in OoO Cores
(Master thesis, 2023)I de senere årene har fokuset på energieffektive prosessorkjerner ført til forskning på metoder for å maksimere ytelsen til mikrobrikker innenfor gitte energibudsjetter. I out- of-order-prosessorer er fleksibel ... -
The Optimal Packet Duration of ALOHA and CSMA in Ad Hoc Wireless Networks
(Master thesis, 2009)In this thesis the optimal transmission rate in ad hoc wireless networks is analyzed. The performance metric used in the analysis is probability of outage. In our system model, users/packets arrive randomly in space and ... -
The READEX formalism for automatic tuning for energy efficiency
(Journal article; Peer reviewed, 2017)Energy efficiency is an important aspect of future exascale systems, mainly due to rising energy cost. Although High performance computing (HPC) applications are compute centric, they still exhibit varying computational ... -
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 ...