Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 21654-21673 av 23007
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UNCERTAINTY MANAGEMENT IN PRODUCT DEVELOPMENT PORTFOLIOS: THE IMPACT OF GLOBAL SUSTAINABILITY AGENDAS
(Peer reviewed; Journal article, 2023)Increased focus on sustainability significantly impacts product development portfolio management in organizations. This paper focuses on the significant unaccommodated uncertainty caused by the green transition for current ... -
Uncertainty management of projects from the owners' perspective, with main focus on managing delivered functionality
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:197, Doctoral thesis, 2010)Projects are often claimed not to produce the effects or deliver the functionality that are expected from them. When this claim is mentioned also by the project owner and other central stakeholders, then the project is ... -
Uncertainty management of projects from the owners’ perspective, with main focus on managing delivered functionality
(Journal article, 2014)Purpose This paper aims to report on the work on a doctoral thesis studying uncertainty management of projects. The thesis was in particular studying uncertainty regarding the functionality that the project should deliver. ... -
Uncertainty modelling of pore pressure by using Monte-Carlo approach in the Hammerfest Basin, Barents Sea
(Master thesis, 2017)The results of this study suggest that: 1) The present Hammerfest Basin is neither affected by large amount of overpressure, nor there is an ongoing leakage detected, 2) the present overpressure distribution in the basin ... -
Uncertainty of full-scale manoeuvring trial results estimated using a simulation model
(Journal article; Peer reviewed, 2017)This paper describes how to estimate the uncertainty of manoeuvring sea trial results without performing repeated tests using only a simulation model. The approach is based on the Monte Carlo method of uncertainty propagation. ... -
Uncertainty of Machine Learning-Based Methods for Wave Forecast and its Effect on Installation of Offshore Wind Turbines
(Doctoral theses at NTNU;2021:325, Doctoral thesis, 2021)Marine operations, such as offshore lifting and mating, are complex and highly weather-sensitive. When planning these weather-restricted opera-tions, it is necessary to determine the response-based operational limits in ... -
Uncertainty of the allocation factors of heat and electricity production of combined cycle power plant
(Journal article; Peer reviewed, 2015)There are many different methods for the allocation of CO2 emissions in Combined Heat and Power plants. The choice of allocation method has a great effect on energy pricing and CO2 allocation in Combined Heat and Power ... -
Uncertainty propagation through a point model for steady-state two-phase pipe flow
(Peer reviewed; Journal article, 2020)Uncertainty propagation is used to quantify the uncertainty in model predictions in the presence of uncertain input variables. In this study, we analyze a steady-state point-model for two-phase gas-liquid flow. We present ... -
Uncertainty quantification and sensitivity analysis for cardiovascular models
(Doctoral thesis at NTNU;2016:234, Doctoral thesis, 2016)The major challenge for applying cardiovascular models in personalized medicine is as follows: How certain are the predictions of a cardiovascular model, taking the natural variations and measurement uncertainty of model ... -
Uncertainty quantification and sensitivity analysis for computational FFR estimation in stable coronary artery disease
(Journal article; Peer reviewed, 2018)Purpose The main objectives of this study are to validate a reduced-order model for the estimation of the fractional flow reserve (FFR) index based on blood flow simulations that incorporate clinical imaging and ... -
Uncertainty quantification and sensitivity analysis informed modeling of physical systems
(Doctoral theses at NTNU;2019:115, Doctoral thesis, 2019) -
Uncertainty quantification and sensitivity analysis of material parameters in crystal plasticity finite element models
(Journal article, 2018)A number of studies have directly compared measurements of polycrystals’ deformation to the solution of a crystal plasticity model of the same polycrystal. An accurate representation of the full 3D microstructure and the ... -
Uncertainty quantification and sensitivity analysis of vascular hemodynamics. Application to the common carotid artery
(Doctoral theses at NTNU;2024:235, Doctoral thesis, 2024)Cardiovascular diseases have been the leading cause of death globally for the past decades. Many cardiovascular diseases are a result of structural changes in the arterial wall, which modify its stiffness. Thus, arterial ... -
Uncertainty quantification for multiphase flow
(Doctoral theses at NTNU;2021:410, Doctoral thesis, 2021)The purview of this thesis is insight into, and development of, methods for uncertainty quantification in multiphase flow. The work is directed towards commercial simulators for transport of gas and liquid in pipelines and ... -
Uncertainty quantification in the ice-induced local damage assessment of a hull section
(Journal article; Peer reviewed, 2019)For the northernmost ocean regions, where the ice is occasionally present, one must design a robust structure that can withstand rare ice events (i.e., a glacial ice impact). Despite existing engineering practice is well ... -
Uncertainty quantification of computational coronary stenosis assessment and model based mitigation of image resolution limitations
(Journal article; Peer reviewed, 2019)Coronary artery disease is one of the leading causes of death globally. The hallmark of this disease is the occurrence of stenosed coronary arteries which reduce blood flow to the myocardium. Severely stenosed arteries can ... -
An Uncertainty-aware Hybrid Approach for Sea State Estimation Using Ship Motion Responses
(Peer reviewed; Journal article, 2021)Situation awareness is essential for autonomous ships. One key aspect is to estimate the sea state in a real-time manner. Considering the ship as a large wave buoy, the sea state can be estimated from motion responses ... -
Unconsolidated ice rubble modelling with continuum approach
(Doctoral theses at NTNU;2017:173, Doctoral thesis, 2017)In ice-infested waters and in the absence of icebergs, ice ridges are responsible for the highest quasi-static loads on offshore structures. The main body of an ice ridge is located below the waterline. This submerged part ... -
Unconventional growth of methane hydrates: A molecular dynamics and machine learning study
(Peer reviewed; Journal article, 2023)Natural gas hydrate reservoirs in natural settings subjected to external driving forces are deformed and locally dissociated, while they reform due to endothermic dissociation reaction. Here we report a molecular dynamics ... -
Unconventional Propeller Tip Design - Hydrodynamic Study
(Master thesis, 2015)Winglets have been successful in the aircraft industry, but have not yet seen widespread use on marine propellers. Three different propellers (one conventional and two equipped with winglets) have been modelled and analysed ...