Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 17322-17341 av 22870
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Quasi-static behaviour of crash components with steel skins and polymer foam cores
(Journal article; Peer reviewed, 2018)Different types of crash components are extensively used by the automotive industry to absorb energy during car accidents. Such components typically consist of sandwich structures with thin metal or composite plates as ... -
Quasi-static compression and compression–compression fatigue behavior of regular and irregular cellular biomaterials
(Peer reviewed; Journal article, 2021)The main aim of the current study is to evaluate the compressive quasi-static and fatigue properties of titanium alloy (Ti6Al4V) cellular materials, with different topologies, manufactured via laser powder bed fusion (LPBF) ... -
Quasicontinuum modeling of fracture in bcc materials
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:333, Doctoral thesis, 2012)In this thesis fracture of the bcc materials iron and tungsten has been studied through multiscale simulations. The quasicontinuum (QC) method with embedded atom method (EAM) interatomic potentials are employed. The results ... -
Quaternary geological Mapping of Fennoscandia and Nordland: Deglaciation, Deposits, Stratigraphy and Applications
(Dr. ingeniøravhandling, 0809-103X; 2003:40, Doctoral thesis, 2003)Quaternary geological mapping is performed by geological surveys in most countries. At the Geological Survey of Norway (NGU), mapping of the surficial deposits has been one of the main tasks from the establishment of the ... -
Quaternions and Dual Quaternions for State and Parameter Estimation
(Doctoral theses at NTNU;2020:75, Doctoral thesis, 2020)This thesis presents new results on the use of quaternions and dual quaternions for the estimation of position and orientation using cameras and inertial sensors. The unit quaternion is a four-parameter representation of ... -
The Quest for a Precise Geoidal Height Model
(Peer reviewed; Journal article, 2004)The geoid is defined as an equipotential surface of the Earth�s actual gravity field inside the topographical masses on land (in most cases) and more or less coinciding with mean sea level at sea. Over the last decade, ... -
Quick clay monitoring using distributed acoustic sensing: A case study from Rissa, Norway
(Peer reviewed; Journal article, 2023)Quick clay avalanche is one of the most devastating landslide types worldwide. Hence, an early warning system is in demand to mitigate the fatal consequences caused by such events. To address this, distributed acoustic ... -
Quick-clay landslide mitigation using potassium chloride
(Doctoral theses at NTNU;2017:234, Doctoral thesis, 2017)Highly sensitive postglacial marine clays, termed quick clays, represent a risk for large retrogressive or progressive landslides such as the well-documented Rissa quick-clay landslide in 1978. Landslide susceptibility ... -
Quo vadis artificial intelligence?
(Peer reviewed; Journal article, 2022)The study of artificial intelligence (AI) has been a continuous endeavor of scientists and engineers for over 65 years. The simple contention is that human-created machines can do more than just labor-intensive work; they ... -
R/V Gunnerus Digital Twin Infrastructure
(Master thesis, 2020)Denne rapporten undersøker potensialet for bruk av digitale tvillinger i utdannings-øyemed for ingeniørstudenter gjennom NTNUs forskningsfartøy FF Gunnerus. Samtidig som digitale tvillinger blir mer og mer relevant for å ... -
R744 ejector technology future perspectives
(Journal article; Peer reviewed, 2016)Carbon Dioxide, CO2 (R744) was one of the first commonly applied working fluids in the infancy of refrigeration more than 100 years ago. In contrast to ammonia it mainly disappeared after the first generation of synthetic ... -
R744 heat pump solutions for electric vehicles
(Chapter, 2023) -
R744 HVAC unit for NSB Flirt trains
(Master thesis, 2017)The vast majority of current air conditioning systems, for railway HVAC applications, utilize high global warming potential (GWP) hydrofluorocarbon (HFC) refrigerants in a vapor compression cycle. In Europe, the dominating ... -
R744 Refrigeration Solution for Small Supermarkets
(Chapter, 2021)Application based technology solution is nowadays preferred to achieve the performance of the cooling system configuration at its best. Therefore, benchmarking is an essential criterion which would add value to the optimum ... -
Radial Consolidation of Pore Pressure Induced by Pile Driving
(Master thesis, 2015)Pile installation is recognized to significantly disturb the surrounding clay and cause changes in total and effective stresses around the pile. In this thesis, a numerical model is used to simulate pile installation and ... -
Radial consolidation of pore pressure induced by pile installation
(Master thesis, 2016)The soil surrounding a driven pile is subjected to varying degrees of soil disturbance during the installation, and experiences a complex combination of loading, unloading and reloading in the course of the life cycle of ... -
Radiation therapy and training effects on the mechanical performance of bone
(Master thesis, 2021)Med stadig stigende forventet levealder oppstår nye aldersrelaterte utfordringer. Eksponering for både osteoporotiske brudd og kreft øker med alder, og flere tilfeller oppdages siden ny teknologi for medisinsk undersøkelse ... -
Radiative forcing bias of simulated surface albedo modifications linked to forest cover changes at northern latitudes
(Journal article; Peer reviewed, 2015)In the presence of snow, the bias in the prediction of surface albedo by many climate models remains difficult to correct due to the difficulties of separating the albedo parameterizations from those describing snow and ... -
Radiative forcing geoengineering causes higher risk of wildfires and permafrost thawing over the Arctic regions
(Journal article; Peer reviewed, 2024)Radiative forcing geoengineering is discussed as an intermediate solution to partially offset greenhouse gas-driven warming by altering the Earth’s energy budget. Here we use an Earth System Model to analyse the response ... -
Radio frequency measurements and capacity analysis for industrial indoor environments
(Chapter, 2015)In this study, path-loss and shadowing measurement results for three different industrial indoor environments at 900, 1600, and 2450 MHz are presented. The results show that the one-slope model fits the measured path-loss ...