Browsing NTNU Open by Title
Now showing items 44196-44215 of 100788
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Hybrid Context-aware Message Flooding for Dead Spot Mitigation in V2I Communication
(Peer reviewed; Journal article, 2020)An often overlooked practical problem in Intelligent Transportation Systems (ITS) is the presence of areas without cellular network connectivity, so-called dead spots, which aggravates the communication between vehicles ... -
Hybrid Control of Fixed-Wing UAVs for Large-Angle Attitude Maneuvers on the Two-Sphere
(Peer reviewed; Journal article, 2020)We propose the design of a hybrid controller for fixed-wing unmanned aerial vehicles which guarantees global exponential tracking of attitude references on the two-sphere. The chosen attitude representation is singularity-free ... -
Hybrid Control of Marine Vessels: Dynamic Positioning in Varying Conditions
(Doctoral theses at NTNU;2017:351, Doctoral thesis, 2017)The next generation marine control systems will, as a step towards increased autonomy, have more automatic functionality in order to cope with a set of complex operations in unknown and varying environments, while maintaining ... -
Hybrid Control to Improve Transient Response of Integral Action in Dynamic Positioning of Marine Vessels
(Journal article, 2015)A hybrid control approach for integral action in the PID control law for dynamically positioned marine vessels is considered. The proposed method is essentially a resetting of the integration gain when the control ... -
Hybrid controller concept for dynamic positioning of marine vessels with experimental results
(Journal article; Peer reviewed, 2018)The next generation marine control systems will, as a step towards increased autonomy, have more automatic functionality in order to cope with a set of complex operations in unknown, challenging and varying environments ... -
A Hybrid Current- and Voltage-Source Driver for Active Driving of Series-Connected SiC MOSFETs
(Peer reviewed; Journal article, 2024)The series-connection of silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors ( mosfet s) is an attractive way of increasing the blocking voltage capability of a switch. However, due to inherent transient ... -
A Hybrid Current- and Voltage-Source Driver for Active Driving of Series-Connected SiC MOSFETs
(Peer reviewed; Journal article, 2024)The series-connection of silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors ( mosfet s) is an attractive way of increasing the blocking voltage capability of a switch. However, due to inherent transient ... -
A Hybrid Data-Driven Metaheuristic Framework to Optimize Strain of Lattice Structures Proceeded by Additive Manufacturing
(Peer reviewed; Journal article, 2023)This research is centered on optimizing the mechanical properties of additively manufactured (AM) lattice structures via strain optimization by controlling different design and process parameters such as stress, unit cell ... -
Hybrid deep-learning POD-based parametric reduced order model for flow around wind-turbine blade
(Peer reviewed; Journal article, 2022)In this study, we present a parametric, non-intrusive reduced order modeling (NIROM) framework as a potential digital-twin enabler for fluid flow around an aerofoil. A wind turbine blade has its basic foundation in the ... -
Hybrid devices for protected quantum information processing
(Doctoral theses at NTNU;2023:260, Doctoral thesis, 2023)Quantum information is very fragile, and it is clear that we need to develop better qubits and employ error correction, in order to make use of the full potential that quantum computation has. In this thesis we explore ... -
Hybrid Dynamic Surrogate Modelling for a Once-Through Steam Generator
(Peer reviewed; Journal article, 2023)Four surrogate modelling techniques are compared in the context of modelling once-through steam generators (OTSGs) for offshore combined cycle gas turbines (GTCCs): Linear and polynomial regression, Gaussian process ... -
Hybrid electronic tag platform for mapping of large-scale fish migration
(Master thesis, 2019)To kjente metoder for fisk lokalisering er bruk av ATT (Acoustic Transmitter Tag) og DST (Data Storage Tags). Akustisk transmitter tagger sender ut en lydbølge som kan mottas av hydrofoner plassert i sjøen. Dette gir en ... -
Hybrid epoxy nanocomposites for high voltage application
(Master thesis, 2022)Hybrid epoksy nanokompositter med uorganiske TiO2 eller Al2O3 nanopartikler som fyllmateriale har vist seg å ha utmerkede dielektriske egensk-\\aper og kan bli brukt som isolasjon i høyspenningsapplikasjoner. Epoksy ... -
A hybrid finite element model for non-isothermal two-phase flow in deformable porous media
(Peer reviewed; Journal article, 2021)This paper presents a numerical method to model the coupled thermo-hydro-mechanical (THM) processes in porous media saturated with two immiscible fluids. The basic equations of the system have been derived based on the ... -
Hybrid Flux Splitting Schemes for Numerical Resolution of Two-Phase Flows
(Doctoral thesis, 2003)This thesis deals with the construction of numerical schemes for approximating solutions to a hyperbolix two-phase flow model. Numerical schemes for hyperbolic models are commonly divided in two main classes: Flux Vector ... -
Hybrid Force Motion Synchronization Control of Robot Manipulators
(Master thesis, 2010)The main objective of this thesis was to combine the theory on synchronization of robot manipulators with the concept of hybrid force/motion control; resulting in a controller capable of following both the trajectory of ... -
Hybrid fuel-cell auxiliary system for an aquaculture vessel
(Master thesis, 2018)Emission reduction in shipping and marine operations is important for the future of this planet and its oceans. This thesis looks into the operation of a hybrid fuel-cell power production system on an aquaculture vessel. ... -
A hybrid heuristic optimization of maintenance routing and scheduling for offshore wind farms
(Peer reviewed; Journal article, 2019)As the operation and maintenance (O&M) costs constitute a substantial portion of the overall life-cycle cost of offshore wind farms, routing, and scheduling of maintenance are very important for cost reduction. With the ... -
Hybrid heuristics for a short sea inventory routing problem
(Journal article; Peer reviewed, 2014)We consider a short sea fuel oil distribution problem where an oil company is responsible for the routing and scheduling of ships between ports such that the demand for various fuel oil products is satisfied during the ... -
Hybrid HVDC Transmission for Large-Scale Offshore Wind Integration - Model-Based Control Design and Performance Assessment
(Master thesis, 2017)Today, the world faces major challenges regarding our global environment. The most pressing challenge is global warming, and the scientific community is well aware of the catastrophic consequences an increase in global ...