Browsing NTNU Open by Title
Now showing items 30751-30770 of 100670
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Estimation of minimum volume of bounding box for geometrical metrology
(Peer reviewed; Journal article, 2020)This paper presents algorithms for estimating the minimum volume bounding box based on a three-dimensional point set measured by a coordinate measuring machine. A new algorithm, which calculates the minimum volume with ... -
Estimation of multiple frequencies in pathological hand tremor for a semi-active 2DOF dynamic vibration absorber designed for tremor suppression
(Master thesis, 2018)Pathological tremor is the most prevalent movement disorder in the world, where ~14.5% of people aged 50-89 years suffer from it. The most common types of tremor are by far essential tremors (ET) and Parkinson Disease ... -
Estimation of nonlinear bulk elasticity parameter for cancer tumors
(Master thesis, 2021)Tofrekvens-ultralyd har blitt brukt til å estimere ikke-lineær bulk elastisitet for adenokarsinom i bukspyttkjertelen (PDAC svulst), den vanligste krefttypen i bukspyttkjertelen. Svulstene har vokst i KPC-mus, men målingene ... -
Estimation of nonlinear scattering for improved detection of micro calcifications for diagnosis of breast cancer using dual band ultrasound
(Master thesis, 2017)Breast cancer is the second largest cause of cancer death in women worldwide. In diagnosis of breast cancer the shape and distribution of micro calcifications in the breast is an important indicator. Today, breast cancer ... -
Estimation of Oscillatory Mode Activity from PMU Measurements
(Chapter, 2020)We propose a method for estimating the activity of oscillatory modes in power systems. The frequencies and mode shapes of the modes of interest are assumed to be known beforehand, either from linear modal analysis or from ... -
ESTIMATION OF PERMEABILITY IN SILICICLASTIC RESERVOIRS FROM WELL LOG ANALYSIS AND CORE PLUG DATA; BASED ON THE DATA FROM AN EXPLORATION WELL OFFSHORE NORWAY
(Master thesis, 2017)Many approaches to estimating permeability exist. By considering the importance of rock types, various petrophysical models have been developed. This project explores techniques for applying well logs and other data to the ... -
Estimation of Power System Inertia From Ambient Wide Area Measurements
(Journal article, 2018)This study presents a method of estimating the effective inertia of a power system from ambient frequency and active power signals measured by phasor measurement units. Most importantly, we demonstrate that inertia can be ... -
Estimation of Reliability by Monte Carlo Simulations: Combined with Optimized Parametric Models
(Master thesis, 2014)A new method for efficient Monte Carlo simulations is developed, and used to estimate the reliability of dependent and independent systems. The method consists of parametrized Monte Carlo simulations, where the robust ... -
Estimation of Resrvoir Properties by Joint Inversion of Seismic AVO and CSEM data
(Master thesis, 2007)Porosity and water saturation in a horizontal top-reservoir are estimated from seismic AVO (Amplitude Versus Offset) data and Controlled Source Electromagnetic (CSEM) data jointly. A model connecting porosity and saturation ... -
Estimation of rock physics properties from seismic attributes - Part 1: Strategy and sensitivity analysis
(Journal article; Peer reviewed, 2016)The quantitative estimation of rock physics properties is of great importance in any reservoir characterization. We have studied the sensitivity of such poroelastic rock physics properties to various seismic viscoelastic ... -
Estimation of rock physics properties from seismic attributes - Part 2: Applications
(Journal article; Peer reviewed, 2016)The estimation of quantitative rock physics properties is of great importance for reservoir characterization and monitoring in CO2CO2 storage or enhanced oil recovery as an example. We have combined the high-resolution ... -
Estimation of Running Resistance in Train Tunnels
(Master thesis, 2015)The research is initiated with the aim to make the tunnel resistance estimations more accurate. Tunnel resistance is measured to calculate running times and energy consumption. From previous studies performed by Norges ... -
Estimation of scintillation indices: a novel approach based on local kernel regression methods
(Journal article; Peer reviewed, 2016)We present a comparative study of computational methods for estimation of ionospheric scintillation indices. First, we review the conventional approaches based on Fourier transformation and low-pass/high-pass frequency ... -
Estimation of Sea Ice Drift Velocity
(Master thesis, 2013)The Arctic is an important region containing large amount of unused potential. It is expected that a large amount of the worlds undiscovered oil and gas resources are located here, and the shortest route between northern ... -
Estimation of Seismic Parameters by Source Strength Variation: An Experimental Analysis using Valhall Data
(Master thesis, 2013)In 2008 at SEG's annual meeting Professor Martin Landrø proposed a new way of deriving 4D noise by source strength variation. It was proposed that by shooting two surveys over the exact same area and process the datasets ... -
Estimation of ship bow-iceberg impact forces with consideration of the sliding effect
(Journal article; Peer reviewed, 2018)A simplified method to estimate the impact force in ship bow-iceberg collisions is presented. The eccentricities of both iceberg and ship are included. The friction at the contact point is also included so that the sliding ... -
Estimation of ship-deck motion using lidar, gyroscopes and cameras
(Peer reviewed; Journal article, 2021)This paper presents a system for the estimation of ship deck motion using camera, lidar and gyroscopes. A camera is used in a vision system that is based on the detection of lines as input to a vanishing point detector. ... -
Estimation of Size Distribution and Abundance of Zooplankton based on Measured Acoustic Backscattered Data
(Master thesis, 2006)In the later years the scientist community has bin investigating the possibility of using zoo plankton as a commercial resource. It is therefore of interest to investigate the size distribution and abundance of zoo plankton. ... -
Estimation of skin optical parameters for real-time hyperspectral imaging applications
(Journal article; Peer reviewed, 2014)Hyperspectral imaging combines high spectral and spatial resolution in one modality. This imaging technique is a promising tool for objective medical diagnostics. However, to be attractive in a clinical setting, the technique ... -
Estimation of Skin Optical Parameters for Real-Time Hyperspectral Imaging Applications using GPGPU Parallel Computing
(Master thesis, 2013)Hyperspectral imaging with a high spatial and spectral resolution can be used to analyze materials using spectroscopic methods. This can be applied on skin as a general purpose real-time diagnostic tool.Light transport ...