Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 22484-22503 av 22946
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VIRTUAL TEAMS AND THE CHALLENGE OF TEAMWORK
(Master thesis, 2019)Virtual teams has become more and more common in today’s world, where globalization means that people from different locations all over the world suddenly work together in teams. Teams that needs to cooperate on a daily ... -
Virtual Winch Prototyping-Design, Modeling, Simulation and Testing of A Marine Hydraulic Winch System with Active Heave Compensation.
(Master thesis, 2016)This thesis is to develop a standard virtual prototyping system for hydraulic winch system including developing a library of standard sub-models of hydraulic system, mechanical system and control system (AHC), and visualizing ... -
Virtuell virkelighet – bare en hype eller reell forbedring for konstruksjonsdesign?
(Master thesis, 2019)Formålet med denne avhandlingen er å undersøke om virtuell virkelighet (VR) bare er en teknologisk hype eller om den kan bidra til en reell forbedring for kontruksjonsdesign. Mange bedrifter bruker allerede VR som et ... -
Virvelavløsning fra butte objekter i en kanalstrømning
(Master thesis, 2012)I denne hovedoppgaven har slippstrømninger generert av sirkulære sylindre og to typer elliptiske varmeveksler - rør blitt undersøkt. Målet med arbeidet har vært å beskrive virvelavløsningsfenomener på elliptiske varmeveksler ... -
Virvelavløsning på varmevekslerrør
(Master thesis, 2013)Strømningen bak de fremste rørene i en rørbuntvarmeveksler har blitt studert for å kunne si noe om virvelavløsningen. Bakgrunnen for studiet er opplevde problemer med vibrasjon og støy i en spesifikk varmeveksler utviklet ... -
Visco-elastic response of thermoplastics
(Master thesis, 2013)In this study a recently developed visco-elastic visco-plastic material model has been evaluated with the intention of improving the simulated behaviour of polymers. In order for polymers to become a more reliable construction ... -
Viscoelastic response of hydrogel materials at finite strains
(Master thesis, 2015)Hydrogel materials are very soft materials consisting of polymer networks and solvent molecules. The materials may exhibit large volume changes depending on its external chemical and mechanical environment and have ... -
Viscosity in modified gravity
(Journal article; Peer reviewed, 2012)A bulk viscosity is introduced in the formalism of modified gravity. It is shown that, based on a natural scaling law for the viscosity, a simple solution can be found for quantities such as the Hubble parameter and the ... -
Viscosity-Induced Crossing of the Phantom Barrier
(Journal article; Peer reviewed, 2015)We show explicitly, by using astrophysical data plus reasonable assumptions for the bulk viscosity in the cosmic fluid, how the magnitude of this viscosity may be high enough to drive the fluid from its position in the ... -
Viscosity-induced crossing of the phantom divide in the dark cosmic fluid
(Journal article; Peer reviewed, 2013-12-10)Choosing various natural forms for the equation-of-state parameter w and the bulk viscosity ζ, we discuss how it is possible for a dark energy fluid to slide from the quintessence region across the divide w = −1 into the ... -
Viscous Cosmology for Early- and Late-Time Universe
(Journal article; Peer reviewed, 2017)From a hydrodynamicist’s point of view the inclusion of viscosity concepts in the macroscopic theory of the cosmic fluid would appear most natural, as an ideal fluid is after all an abstraction (exluding special cases such ... -
Viscous coupled fluids in terms of a log-corrected equation-of-state
(Peer reviewed; Journal article, 2021)In this paper, we consider a class of cosmological fluids that possess properties analogous to those of crystalline solids undergoing isotropic deformations. Our research is based on a modified log-corrected power-law ... -
Viscous flow around a circular cylinder near a plane wall
(Master thesis, 2011)Marine pipelines placed at or near the seabed are exposed to currents and waves. In the presence of a sedimentary seabed, the interaction between the surrounding water motions and the pipeline may cause erosion of sediments ... -
Viscous flow around a simplified model of a Christmas tree
(Master thesis, 2016)In the petroleum industry, a Christmas tree is a structure consisting of valves and spools that sits atop an oil well. In order to better understand the forces acting on a Christmas tree during and after installation, ... -
Viscous Flow Around Finite Lenght Circular Cylinder
(Master thesis, 2012)Viscous flow around circular cylinders is a classical research topic in fluid dynamics with a vast amount of practical applications in the field of offshore marine technology. In the flow around cylinders of finite length, ... -
Viscous Flow Around Inclined Circular Cylinder
(Master thesis, 2017)Circular cylinder is of vital importance in the marine industry. The goal of this thesis is to study the physical phenomenon around the inclined circular cylinder as well as the forces acting on it. The study is mainly ... -
Viscous regularization for cohesive zone modelling under constant displacement: an application to hydrogen embrittlement simulation
(Journal article; Peer reviewed, 2016)The convergence problem during the cohesive zone modelling of hydrogen embrittlement in constant displacement scenario is attributed to the numerical instability which is studied analytically in the present work. The ... -
Visible-Light-Driven Photochromism of Hexagonal Sodium Tungsten Bronze Nanorods
(Journal article; Peer reviewed, 2013)Single-crystalline sodium tungsten bronze (Na-WO3) nanorods with typical diameters of 10–200 nm and lengths of several micrometers were prepared via hydrothermal synthesis. The as-prepared Na-WO3 nanorods crystallized in ... -
Vision Based Localization for Subsea Intervention
(Chapter; Peer reviewed, 2017)A vision based underwater localization system using fiducial markers is proposed. The system is implemented as a new control mode in a shared control system for ROVs and tested experimentally in a pool. A high accuracy ...