Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 18235-18254 of 22876
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S-wave kinematics in acoustic transversely isotropic media with a vertical symmetry axis
(Journal article; Peer reviewed, 2018)Acoustic transversely isotropic models are widely used in seismic exploration for P‐wave processing and analysis. In isotropic acoustic media only P‐wave can propagate, while in an acoustic transversely isotropic medium ... -
Safe and efficient maneuvering of a Maritime Autonomous Surface Ship (MASS) during encounters at sea: A novel approach
(Peer reviewed; Journal article, 2022)When introducing a collision avoidance system on a Maritime Autonomous Surface Ship (MASS) for encounters at sea, it may seem reasonable to assume that an approaching ship will follow the procedures presented in the ... -
Safe and efficient operation and maintenance of offshore wind farms
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:70, Doctoral thesis, 2014)This PhD work has been carried out when early experience is obtained from the first offshore wind energy projects and new projects with large capacity are in preparation. The importance and challenges of operation and ... -
Safe Autonomy in Marine Robotics
(Doctoral theses at NTNU;2024:44, Doctoral thesis, 2024)The use of marine robots has become increasingly common in various disciplines and industries, such as oceanography, marine biology, archaeology, transportation, offshore energy, fisheries, and security. However, the marine ... -
Safe coastal navigation during GNSS denial – options and challenges
(Journal article; Peer reviewed, 2019) -
Safe Rivers – Identification of critical locations along steep watercourses during flood events
(Master thesis, 2019)Floods are the most common of the natural disasters seen by human race over the past couple of decades and their frequency is forecasted to increase owing to climate change and increased human activity. Flood analysis and ... -
Safe, Clean, Proliferation Resistant and Cost-Effective Thorium-based Molten Salt Reactors for Sustainable Development
(Peer reviewed; Journal article, 2021)Sustainable development requires sustainable energy sources. Nuclear energy is proposed, but it is perceived as problematic in terms of proliferation, waste, safety and costs. In this paper, these issues are analyzed, and ... -
SAFENESS: A Semi-Supervised Transfer Learning Approach for Sea State Estimation Using Ship Motion Data
(Journal article; Peer reviewed, 2023)Autonomous vessels have been identified as a promising innovation in advancing marine transportation, providing an effective means to mitigate the risk of accidents, pollution incidents, and carbon dioxide emissions. ... -
SafeT-Next Generation Safety Assessment Framework for Railway: Development of a Framework for the Practical Implementation and Facilitation of STPA
(Master thesis, 2018)In this thesis, a systems-theoretic process analysis workshop has been planned and conducted in order to see if the method is advantageous to use at complex systems, and if the analysis reveals more hazardous scenarios ... -
Safety And Costs Optimization In Hydrogen Delivery
(Master thesis, 2020)In recent decades, attention has been paid to the improvement of hydrogen technologies as replacement of electric and/or hybrid cars. This can be defined as a green solution as the main product of hydrogen combustion is ... -
Safety and efficiency enhancement of anchor handling operations with particular emphasis on the stability of anchor handling vessels
(Doctoral theses at NTNU;2017:209, Doctoral thesis, 2017)The overall objective of this thesis is the development of a framework for enhancing the safety and efficiency of anchor handling vessels (AHVs) during anchor handling operations (AHOs). In other words, the proposed ... -
Safety and Reliability Assessment of All-Electric Subsea
(Master thesis, 2020)Undervannsproduksjon refererer til brønner som ligger på havbunnen, og tilhørende utstyr og moduler for å produsere hydrokarboner. Det vanligste systemet for kontroll av undervannsproduksjon er et elektrohydraulisk system. ... -
Safety and reliability assessment of CO2 refrigeration system for underground applications below -50 °C
(Chapter, 2021)A new CO2 refrigeration concept is evaluated to cool the ATLAS and CMS experiments installed close to 100 m underground, at the Large Hadron Collider (LHC) at CERN. The first prototype unit produced to validate the conceptual ... -
Safety and Verification of Advanced Maritime Vessels - An Approach Based on Systems Theory
(Doctoral theses at NTNU;2018:119, Doctoral thesis, 2018)The past few decades have seen rapid technological development in ships and offshore vessels. Advanced electrical power plants and dynamic positioning (DP) systems are now widespread, and the growing demand for greener and ... -
Safety aspects of Organic Rankine Cycles (ORC) with combustible working fluid and sub-ambient condenser pressure
(Peer reviewed; Journal article, 2024)ORCs are often designed with the lower pressure limited by the ambient pressure, to avoid air leaking into the working fluid. Safely lowering this limit will be beneficial for power-production efficiency. First, cycle ... -
Safety Aspects of Organic Rankine Cycles (ORC) with Combustible Working Fluids
(Master thesis, 2021)Trass i at organiske Rankine-syklusar (ORC) har eksistert ei stund, er det lite forsking på slike syklusar der subatmosfærisk trykk blir brukt. Subatmosfærisk trykk opnar for høgare trykkforhold som igjen gjev høgare ... -
Safety barrier management: Risk‐based approach for the oil and gas sector
(Peer reviewed; Journal article, 2021)In the Oil and Gas sector, risk assessment and management have always been critical due to the possibility of significant accidents associated with the presence of large amounts of flammable hydrocarbons. Methods to provide ... -
Safety barriers against common cause failure and cascading failure: literature reviews and modeling strategies
(Chapter, 2018)Safety barriers are required in many technical systems to reduce initiating negations, suppress failure propagations, or mitigate the consequences of common cause failures and cascading failures. Based on a thorough ... -
Safety Barriers in Complex Systems with Dependent Failures: Modeling and Assessment Approaches
(Doctoral theses at NTNU;2022:40, Doctoral thesis, 2022)Technical systems are becoming more and more complex with a degree of dependencies. Such dependency issues can significantly reduce system reliability and cause catastrophes without proper prevention. Therefore, a variety ... -
Safety Barriers on Oil and Gas Platforms. Means to Prevent Hydrocarbon Releases
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:3, Doctoral thesis, 2006)The main objective of the PhD project has been to develop concepts and methods that can be used to define, illustrate, analyse, and improve safety barriers in the operational phase of offshore oil and gas production ...