Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 22921-22940 av 23135
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Weather optimal dynamic positioning of underactuated AUVs using output feedback control
(Journal article, 2006)In this paper we present an output feedback control system for dynamic positioning of underactuated AUVs. The control objective is to maintain a desired distance to the target while orienting the vehicle towards the target ... -
Weather Routing of Supply Vessels in the North Sea - Solving the Supply Vessel Weather Routing Problem
(Master thesis, 2015)This thesis is concerned with defining and solving the supply vessel weather routing problem. The particular problem in focus will be Statoil's supply circuit in the middle North Sea, including the Johan Sverdrup oil field. ... -
Weathering Performance of Spruce Coated with Water Based Acrylic Paint Modified with TiO2 and Clay Nanoparticles
(Journal article; Peer reviewed, 2013)This work examines the effect of wood specimens coated with water based acrylic coatings modified with TiO2 and clay nanoparticles against weathering strain. The long-term durability of the specimens towards climate strain ... -
Web Based Customized Design
(Master thesis, 2013)This thesis studies the methods needed to create a web based application to remotely customize a CAD model. This includes customizing a CAD model by using a graphical user interface to be able to remotely control the inputs ... -
Wedge splitting test of wood for fracture parameters estimation of Norway Spruce
(Peer reviewed; Journal article, 2020)Crack evolution in wood from Norway Spruce during mode I wedge splitting tests was measured using a Digital Image Correlation (DIC) system. The resulting series of deformation fields were post-processed in order to obtain ... -
Weight and power optimization of steam bottoming cycle for offshore oil and gas installations
(Journal article; Peer reviewed, 2014)Offshore oil and gas installations are mostly powered by simple cycle gas turbines. To increase the efficiency, a steam bottoming cycle could be added to the gas turbine. One of the keys to the implementation of combined ... -
Weight estimation of ice strengthened hull structures
(Master thesis, 2020)The prevailing trend in ship design has been shifting towards holistic design process. This means that the different design aspects have all been incorporated together in order to find the design that is successful in all ... -
Weight Estimation of Steam Cycle for CO2 Capture System on Offshore Oil and Gas Installation
(Master thesis, 2016)Climate change due to increasing anthropogenic CO2 emissions is a major concern both in Norway, and globally. Greater environmental focus and increased taxes on emitted CO2 have led to corporate efforts on reducing CO2 ... -
Weight Margins and Flexibility in Offshore Rigs
(Master thesis, 2013)The subject of this paper is the use of weight margins in the design and fabrication of large offshore oilrigs. Margins are a way of increasing the freedom of choice of the designers and a method of increasing the overall ... -
Weightless Neural Network-Based Detection and Diagnosis of Visual Faults in Photovoltaic Modules
(Peer reviewed; Journal article, 2023)The present study introduces a novel approach employing weightless neural networks (WNN) for the detection and diagnosis of visual faults in photovoltaic (PV) modules. WNN leverages random access memory (RAM) devices to ... -
Weinberg’s 3HDM potential with spontaneous CP violation
(Peer reviewed; Journal article, 2023)We study the potential of Weinberg’s Z2 × Z2-symmetric three-Higgs-doublet model. The potential is designed to accommodate CP violation in the scalar sector within a gauge theory, while at the same time allowing for natural ... -
Welding mechanism and welding quality in extrusion welding
(Master thesis, 2010)A short theoretical foundation is presented that covers; heat treatment of aluminium to T6 condition, a brief overview of conditions that affect extrusion welding in aluminium and a few well-known methods for mechanical ... -
Welding on Power Pylons in Aluminium
(Master thesis, 2016)This master thesis has investigated the behaviour of aluminium cylinders subjected to compression for both unwelded and welded cross sections. Three different combinations of material and geometry has been tested in the ... -
WELDSIM Simulations of Alu-Steel Butt Welds Produced Using the Hybrid Metal Extrusion and Bonding (HYB) Process
(Master thesis, 2020)Hybrid metal extrusion and bonding (HYB), er en fast fase sammenføynings prosess. Først utviklet for sveising av aluminium. Men også kapabel til å sveise ulike metaller. Prosessen bruker tilføring av materiale ved hjelp ... -
Well Control Aspects of Riserless Drilling
(Master thesis, 2013)This master thesis has investigated feasibility of effective well control in riserless drilling. An attempt was undertaken to design a realistic model of riserless well using advanced multiphase simulation tool and evaluate ... -
Well Control Optimization by Coupling Smart Proxy Models with Genetic Algorithm
(Master thesis, 2021)Generally, optimal well controls to maximize net present value (NPV) are obtained by coupling of numerical reservoir simulation with an optimization algorithm. This approach requires a significant number of numerical ... -
Well Control Optimization in Waterflooding Using Genetic Algorithm Coupled with Machine Learning Models
(Master thesis, 2020)Generally, optimum well controls to maximize net present value (NPV) in a waterflooding operation are obtained from a numerical reservoir simulation in combination with an optimization algorithm. This procedure is often ... -
Well control with Controlled Mud Pressure: Reviewing AGR’s well control procedures for the CMP system, analyzing and comparing with conventional well-control procedures, possible impact of technology.
(Master thesis, 2011)Dual Gradient Drilling (DGD) are a portfolio of drilling systems that in various ways pumpreturns from the well through a mud return line (MRL) from the seafloor, or somewhere between the seafloor and the rig floor. Two ... -
Well control with Low Riser Return System
(Master thesis, 2011)A response to the increasingly more challenging prospects to drill, due to depletion of old reservoirs and increasing water depths, is the Low Riser Return System (LRRS). The LRRS is a system designed to manage the wellbore ... -
Well Integrity Assessment: Challenges related to Human and Organizational Factors - The case study of Veslefrikk
(Master thesis, 2015)Well integrity affects safety, humans, the environment, production, reputations and assets value. The concept of well integrity in relation to human and organizational factors have gained considerable attention in the ...