Browsing Publikasjoner fra CRIStin - NTNU by Title
Now showing items 35733-35752 of 37736
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Unburned Hydrocarbon Formation in a Natural Gas Engine Under Sea Wave Load Conditions
(Peer reviewed; Journal article, 2020)Although natural gas is documented as a low-emission fuel compared to the other traditional fossil fuels in internal combustion engines, recent research indicates large amounts of methane emission released by lean burn gas ... -
Uncalcined TS‐2 immobilized Au nanoparticles as a bifunctional catalyst to boost direct propylene epoxidation with H2 and O2
(Journal article; Peer reviewed, 2019)Developing stable yet efficient Au–Ti bifunctional catalysts is important but challenging for direct propylene epoxidation with H2 and O2. This work describes a novel strategy of employing uncalcined titanium silicalite‐2 ... -
Uncertain Climate Policy Decisions and Investment Timing: Evidence from Small Hydropower Plants
(Journal article, 2011)Based on panel data of 214 licenses to construct small hydropower plants, we examine whether uncertainty with respect to the introduction of a market for renewable energy certificates affected the timing of investments in ... -
Uncertain, collective and heroic leadership approaches to gender balance change among local leaders in academia
(Peer reviewed; Journal article, 2021)Heads of department (HoDs) are commonly made responsible for implementing gender balance change in academia. Research has found that they are often reluctant to take ownership of this problem. Our study found that department ... -
Uncertainties in current measurements in the northern North Sea
(Journal article; Peer reviewed, 2017)A met–ocean measurement program of waves and current profiles at five locations in the northern North Sea was performed over a period of approximately 5 years. Despite quality control, the measured current speed data ... -
Uncertainties in scheduling and execution of trackwork in Sweden
(Peer reviewed; Journal article, 2023)Trackwork planning and scheduling are demanding because they require strategic foresight and must be completed well in advance. In Sweden, trackwork is performed by maintenance contracting companies during an operation ... -
Uncertainties of Ship Speed Loss Evaluation Under Real Weather Conditions
(Chapter, 2018)A correct assessment of the ship speed loss in conditions of exploitation is becoming increasingly important for ship owners as well as ship designers. We are witnessing the increasing concern for the environment and ... -
Uncertainty Analysis for Assessing Leakage Through Water Tunnels: A Case from Nepal Himalaya
(Journal article; Peer reviewed, 2010)Water leakage problems in unlined or shotcrete lined water tunnels are not new issues. In many occasions severe water leakage problems have been faced that not only have reduced the stability of the rock mass, but also ... -
Uncertainty analysis for assessing rock mass quality and water inflow in hard rock subsea tunnels
(Chapter, 2009)In many occasions considerable discrepancies have been found between predicted and actual rock mass conditions, resulting significant cost and time overrun. Finding innovative solutions for quantifying geological uncertainties ... -
Uncertainty analysis in a large-scale water quality integrated catchment modelling study
(Journal article; Peer reviewed, 2019)Receiving water quality simulation in highly urbanised areas requires the integration of several processes occurring at different space-time scales. These integrated catchment models deliver results with a significant ... -
Uncertainty analysis in the techno-economic assessment of CO2 capture and storage technologies. Critical review and guidelines for use
(Peer reviewed; Journal article, 2020)Uncertainty analysis is a key element of sound techno-economic analysis (TEA) of CO2 Capture and Storage (CCS) technologies and systems, and in the communication of TEA results. Many CCS technologies are relatively novel, ... -
Uncertainty analysis of the hydrodynamic coefficients estimation of a nonlinear manoeuvring model based on planar motion mechanism tests
(Journal article; Peer reviewed, 2019)Uncertainty analysis of the identified hydrodynamic coefficients of a nonlinear manoeuvring model is presented in this paper. The classical parameter estimation method, Least Square, is briefly introduced, and the uncertainty ... -
Uncertainty analysis of tunnel squeezing for two tunnel cases from Nepal Himalaya
(Journal article; Peer reviewed, 2007)Weak rocks such as shale, slate, phyllite and schist, and the rock mass of weakness/fault zones are incapable of sustaining high tangential stress. Severe tunnel squeezing is therefore common in the tectonically active ... -
Uncertainty and risk assessment of leakage in water tunnels - a case from Nepal Himalaya
(Proceedings: World Tunnel Congress 2008;, Research report, 2008)Safety and stability are the key issues in underground excavations. Making tunnels water tight plays an important role in this regards. Water leakage problems in unlined or shotcrete lined water tunnels are not new issues. ... -
Uncertainty and sensitivity analysis for the performance evaluation of ship dynamical model
(Chapter, 2022)Model uncertainty is pervasive and inherent in the engineering field. It could bring potential risks in real applications, especially for ship behaviour prediction under environmental disturbances. The evaluation and ... -
Uncertainty assessments of structural loading due to frst year ice based on the ISO standard by using Monte-Carlo simulation
(Peer reviewed; Journal article, 2020)Sea ice is the major source of loading for structural design in cold regions. The intrinsic properties of sea ice are generally associated with high degrees of uncertainty due to ice growth taking place during different ... -
Uncertainty Aware Deep Learning Model for Secure and Trustworthy Channel Estimation in 5G Networks
(Peer reviewed; Journal article, 2023)With the rise of intelligent applications, such as self-driving cars and augmented reality, the security and reliability of wireless communication systems have become increasingly crucial. One of the most critical components ... -
Uncertainty in the real-time estimation of ship speed through water
(Peer reviewed; Journal article, 2021)The ship speed through water (STW) is a critical variable for evaluation of ship performance. With a cubic relation to the expected shaft power, even small inaccuracies in measured STW amplifies to more considerable ... -
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
(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. ...