• A quasi-offline condition monitoring method of DC-link capacitor banks in accelerator power converters 

      Baumann, Timm Felix; Papastergiou, Konstantinos; Raul Murillo, Murillo Garcia; Peftitsis, Dimosthenis (Chapter, 2022)
      This paper proposes a condition monitoring scheme for DC-link electrolytic capacitors used innregenerative medium power converters. The monitoring scheme is based on capacitor bank voltage measurements in quasi-offline ...
    • Quasi-Social Software as the ‘Social’ in Socio-Technical Design 

      Nowostawski, Mariusz; Frantz, Christopher (Journal article; Peer reviewed, 2019)
      In traditional socio-technical system design, we typically discuss three core layers: the social, the technical, and the socio-technical layer. The social layer represents human aspects, the technology represents the ...
    • Quasi-Static & Dynamic Numerical Modeling of Full Scale NREL 5MW Wind Turbine 

      Siddiqui, Muhammad Salman; Rasheed, Adil; Tabib, Mandar; Kvamsdal, Trond (Journal article; Peer reviewed, 2017)
      Simulations of the National Renewable Energy Laboratory (NREL) 5MW wind turbine under quasi-static Multiple Reference Frame (MRF) and dynamic Sliding Mesh Interface (SMI) methodologies are presented. Two reference zone ...
    • Quasi-static and dynamic indentation of offshore pipelines with and without multi-layer polymeric coating 

      Vestrum, Ole; Kristoffersen, Martin; Polanco-Loria, Mario; Ilstad, Håvar; Langseth, Magnus; Børvik, Tore (Journal article; Peer reviewed, 2018)
      Offshore pipelines are occasionally subjected to accidental impact loads from trawl gear or anchors, which may damage the pipe. In this study, a series of indentation experiments carried out on offshore steel pipes covered ...
    • Quasi-Static and Dynamic Testing of Annealed Float Glass 

      Osnes, Karoline; Hopperstad, Odd Sture; Børvik, Tore (Journal article; Peer reviewed, 2018)
      Three different experimental set-ups were employed in the investigation of the fracture strength of annealed float glass. These included four-point bending tests on three different specimen sizes, and quasi-static and ...
    • Quasi-static behavior of 3D printed lattice structures of various scales 

      Xu, Zhuo; Medori, Elena; Sarasini, Fabrizio; Razavi, Seyed Mohammad Javad (Peer reviewed; Journal article, 2021)
      Additive manufacturing technology has been playing an important role in industrial applications due to the potential capacities to fabricate complex geometries such as lattice structures, which are treated as outstanding ...
    • Quasi-static behaviour of crash components with steel skins and polymer foam cores 

      Reyes, Aase; Børvik, Tore (Journal article; Peer reviewed, 2018)
      Different types of crash components are extensively used by the automotive industry to absorb energy during car accidents. Such components typically consist of sandwich structures with thin metal or composite plates as ...
    • Quasi-static compression and compression–compression fatigue behavior of regular and irregular cellular biomaterials 

      Cao, Anni; Gao, Chao; Berto, Filippo (Peer reviewed; Journal article, 2021)
      The main aim of the current study is to evaluate the compressive quasi-static and fatigue properties of titanium alloy (Ti6Al4V) cellular materials, with different topologies, manufactured via laser powder bed fusion (LPBF) ...
    • The quasi-static plasmonic problem for polyhedra 

      de León-Contreras, Marta; Perfekt, Karl-Mikael (Peer reviewed; Journal article, 2022)
      We characterize the essential spectrum of the plasmonic problem for polyhedra in R3. The description is particularly simple for convex polyhedra and permittivities ϵ<−1. The plasmonic problem is interpreted as a spectral ...
    • Quasiclassical boundary conditions for spin-orbit coupled interfaces with spin-charge conversion 

      Linder, Jacob; Amundsen, Morten (Peer reviewed; Journal article, 2022)
      The quasiclassical theory of superconductivity provides a methodology to study emergent phenomena in hybrid structures comprised of superconductors interfaced with other materials. A key component in this theory is the ...
    • Quasiclassical theory for antiferromagnetic metals 

      Fyhn, Eirik Holm; Brataas, Arne; Qaiumzadeh, Alireza; Linder, Jacob Wüsthoff (Peer reviewed; Journal article, 2023)
      Unlike ferromagnetism, antiferromagnetism cannot readily be included in the quasiclassical Keldysh theory because of the rapid spatial variation in the directions of of the magnetic moments. The quasiclassical framework ...
    • Quasiclassical theory for interfaces with spin-orbit coupling 

      Amundsen, Morten; Linder, Jacob (Journal article; Peer reviewed, 2019)
      In recent years, substantial progress has been made regarding the application of quasiclassical theory on superconducting hybrid structures. This theoretical framework is reliant on a proper set of boundary conditions in ...
    • Quasiclassical theory for the superconducting proximity effect in Dirac materials 

      Hugdal, Henning Goa; Linder, Jacob; Jacobsen, Sol (Journal article, 2017)
      We derive the quasiclassical non-equilibrium Eilenberger and Usadel equations to first order in quantities small compared to the Fermi energy, valid for Dirac edge and surface electrons with spin-momentum locking p· σ¯, ...
    • Quaternary landscape evolution in a tectonically active rift basin (paleo-lake Mweru, south-central Africa) 

      Olivotos, Spiros; Niedermann, Samuel; Flügel, Tyrel; Mouslopoulou, Vasiliki; Merchel, Silke; Cotterill, Fenton; Bookhagen, Bodo; Gärtner, Andreas; Rugel, Georg; Scharf, Andreas; Nadeau, Marie-Josée; Braucher, Régis; Seiler, Martin (Peer reviewed; Journal article, 2021)
      Located between the Northern Province of Zambia and the southeastern Katanga Province of the Democratic Republic of Congo, Lakes Mweru and Mweru Wantipa are part of the southwest extension of the East African Rift System ...
    • Quaternion-Based Generalized Super-Twisting Algorithm for Spacecraft Attitude Control 

      Kristiansen, Bjørn Andreas; Grøtte, Mariusz Eivind; Gravdahl, Jan Tommy (Peer reviewed; Journal article, 2020)
      A second-order sliding mode control, the generalized super-twisting algorithm (GSTA), is used for attitude control of a spacecraft actuated by reaction wheels for pointing and a slewing maneuver. Magnetorquers are used for ...
    • Quaternion-valued distributed filtering and control 

      Talebi, Sayed Pouria; Werner, Stefan; Mandic, Danilo (Peer reviewed; Journal article, 2020)
      This article presents a unified framework for filtering and control of quaternion-valued state vector processes through multiagent networked systems. To achieve this goal, the filtering problem in sensor networks is ...
    • Quay Contact Detection for Ships using Motion Sensors and Machine Learning 

      Helgesen, Håkon Hagen; Kristiansen, K S; Vik, Bjørnar; Johansen, Tor Arne (Peer reviewed; Journal article, 2022)
      Detecting when and where contact with the quay appears is an important ability for ships undergoing a docking maneuver. The motion of the quay, environmental forces, and hydrodynamic effects caused by the interaction between ...
    • Queering representation: Reflecting on reflexivity in my doctoral research 

      Hartline, Francis Rose (Peer reviewed; Journal article, 2020)
      From 2016 to 2019, I conducted my doctoral project research on trans and gender-diverse experiences in Norway, focussing on the impact of a new law on gender recognition through which the previous sterilisation requirement ...
    • Quelques observations sur l'Ovidius moralizatus de Pierre Bersuire 

      Kretschmer, Marek Thue (Peer reviewed; Journal article, 2021)
      Le présent article offre une introduction générale à l’œuvre de Pierre Bersuire suivie par une discussion plus approfondie de son Ovidius moralizatus. À travers une série d’exemples tirés de manuscrits contenant la version ...
    • Query Extension Suggestions for Visual Query Systems Through Ontology Projection and Indexing 

      Klungre, Vidar Norstein; Soylu, Ahmet; Jimenez-Ruiz, Ernesto; Kharlamov, Evgeny; Giese, Martin (Journal article; Peer reviewed, 2019)
      Ontology-based visual query formulation is a viable alternative to textual query editors in the Semantic Web domain for extracting data from structured data sources in terms of the skills and knowledge required. A visual ...