Blar i Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM) på tittel
Viser treff 1580-1599 av 1686
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UiS Subsea-Freight Glider: A large buoyancy-driven autonomous cargo glider
(Peer reviewed; Journal article, 2022)This study presents the baseline design for the autonomous subsea vehicle capable of traveling at a lower speed of 1 m/s with an operating range of 400 km. Owing to UiS subsea-freight glider’s (USFG) exceedingly economical ... -
Ultimate capacity of pad eyes in lifting operations
(Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-15)Lifting is an essential part of almost every offshore operation, which includes a variation of structures with different sizes, shapes and weights. To ensure safe lifting operations, lifting equipment must be utilized. ... -
Ultra-Deep Water High Pressure Riser Concept Offshore Brazil
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06-15)Since the 1950s, risers have continued to be an important part of an oil and gas producing field. As the primary equipment that conveys fluids to and from the topside vessel, it is important ... -
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 ... -
Uncertainty Analysis of a Safety Operating Envelope for a Subsea Shuttle Tanker
(Master thesis, 2023)This thesis investigates the uncertainty of a safety operating envelope (SOE) for a subsea shuttle tanker (SST). The main focus of this work is on the jam-to-rise and jam-to-dive aspects of the accidental cases for the ... -
Understanding of buoyancy in drill pipe and risers
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)This thesis highlights that there is a wide spread use of the term “buoyancy” in the petroleum industry which can lead to misunderstandings. It is also evident that terms like “effective tension”, “true wall tension” and ... -
Undersøkelse av brønnverktøy
(Bachelor thesis, 2022)Denne oppgaven er skrevet i samarbeid med Interwell Norway AS. Oppgaven bygger på en undersøkelse av deres nylig innkjøpte brønnverktøy som består av flere mekaniske, elektriske og hydrauliske moduler. Formålet med ... -
Undersøkelse av de mekaniske egenskapene til CO2 herdet betong med naturlige aggregater.
(Bachelor thesis, 2021)Betongproduksjon er en av industriene med størst CO2 utslipp i verden. En liten reduksjon i CO2 utslippene fra denne industrien kan derfor være svært gunstig for å nå klimamålene. Herding ved akselerert karbonatisering ... -
Unfrozen Skewed Turbulence for Wind Loading on Structures
(Peer reviewed; Journal article, 2022)The paper introduces an algorithm to generate a three-variate four-dimensional wind turbulence field suited for yawed wind dynamic load simulation. At large yaw angles, a relaxation of Taylor’s hypothesis of frozen turbulence ... -
Unlocking Household Electricity Consumption in Pakistan
(Peer reviewed; Journal article, 2021-11)In Pakistan, data for household electricity consumption are available in the form of monthly electricity bills only, and, therefore, are not helpful in establishing appliance-wise consumption. Further, it does not help in ... -
Unsteady RANS Simulations of Flow around a Twin-Box Bridge Girder Cross Section
(Journal article; Peer reviewed, 2019-07)The aerodynamic performance of bridge deck girders requires a thorough assessment and optimization in the design of long-span bridges. The present paper describes a numerical investigation of the aerodynamic characteristics ... -
Upheaval buckling of buried pipelines
(Masteroppgave/UIS-TN-IKM/2009;, Master thesis, 2011)This thesis is divided into two parts. The first part consists of an introduction to theory and design aspects regarding the subject of thermal buckling with main focus on buried pipelines. The second part introduces the ... -
Usability study of a risk based inspection software
(Masteroppgave/UIS-TN-IKM/2009;, Master thesis, 2011)Usability, or the “ease of use” of a software application, is important in order to allow for a user to carry out the intended task in an efficient and effective manner. For a technical software, as the risk based ... -
Use of ANN for monitoring application of a distributed energy generation system based on mGT
(Master thesis, 2022)In today's dynamic energy landscape, renewable energy sources are steadily increasing their share of electricity on the grid. The world population recognises the benefits of going carbon neutral and is now willing to invest ... -
Use of blockchain in supply chain management.
(Master thesis, 2023)This thesis explores the subject of blockchain technology use in supply chain management. Its objectives were to research how well adopted blockchain has become in various industries by major and minor companies, and see ... -
Use of circular economy practices during the renovation of old buildings in developing countries
(Peer reviewed; Journal article, 2023)The construction industry is responsible for over 30% of global natural resource extraction and 25% of solid waste production, primarily due to its prevalent "take, make, dispose" economic model. Shifting toward a circular ... -
Use of coiled tubing from floaters and in arctic environments
(Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2013-01)When coiled tubing (CT) operations are performed from floaters there is relative motion between the sea bottom and the topside equipment placed on the vessel deck. Some of the CT equipment is placed in a heave compensated ... -
Use of digital technology to follow the consequences of a warming Arctic climate
(Peer reviewed; Journal article, 2021)The rapid warming climate is causing the Arctic ice to retreat and the permafrost to melt. These visible manifestations of the ongoing climate change are few of many environmental and societal changes that take place in ... -
Use of Fuel Cells to Extend Multirotor Drone Endurance
(PhD thesis UiS;, Doctoral thesis, 2021-10)Unmanned aerial systems can be used for a range of industrial applications to reduce risk, cost, and time. Fuel cell-based propulsion systems are outlined as a solution to extend mission endurance, one of the current main ... -
Use of Machine Learning Techniques for Risk Based Inspection and Integrity Management of Pipeline Systems
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)This thesis demonstrates the use of machine learning for integrity management and assessment of pipeline integrity using various types of classification algorithms on comprehensive in-line inspection data. Machine learning ...