Recent Submissions

  • Minimal complexes of cotorsion flat modules 

    Thompson, Peder (Journal article; Peer reviewed, 2019)
    Let R be a commutative noetherian ring. We give criteria for a complex of cotorsion flat R-modules to be minimal, in the sense that every self homotopy equivalence is an isomorphism. To do this, we exploit Enochs' description ...
  • Centre for Digital Life Norway - Annual report 2017 

    Johansen, Finn-Eirik; Brautaset, Trygve; Aune, Marie Hjelmseth; Patriksson, Alexandra; Falkenberg, Liv Eggset; Kleppe, Rune; Dick, Gunnar; Strand, Berit Løkensgard; Eijsink, Vincent; Røyne, Anja; Goksøyr, Anders; Svendsen, John Sigurd Mjøen; Fyhn, Marianne; Vik, Jon Olav; Wentzel, Alexander; Aksnes, Astrid; Bruheim, Per; Carlsen, Sven Magnus; Åm, Heidrun (Research report, 2018)
  • Probabilistic assessment of ice rose diagrams for ice drift in the beaufort sea 

    Sinsabvarodom, Chana; Chai, Wei; Leira, Bernt Johan; Høyland, Knut Vilhelm; Næss, Arvid (Journal article; Peer reviewed, 2019)
    The intention of this paper is to introduce the ice rose diagram, which is a graphical tool that makes it possible to display the ice drift speed, the occurrence frequency, and the drift direction at a particular location ...
  • A control problem related to the parabolic dominative p-Laplace equation 

    Høeg, Fredrik Arbo; Ruosteenoja, Eero (Journal article; Peer reviewed, 2019)
    We show that value functions of a certain time-dependent control problem in Ω × (0, T), with a continuous payoff F on the parabolic boundary, converge uniformly to the viscosity solution of the parabolic dominative p-Laplace ...
  • On the development of laboratory projects in modern engineering education 

    Bye, Robin Trulssen; Osen, Ottar (Journal article; Peer reviewed, 2019)
    Whilst a solid theoretical foundation is important in any undergraduate engineering program, practical exercises and educational laboratories play an equally vital role in educating knowledgeable and skillful engineers ...
  • DYNLO: Enhancing Non-linear Regularized State Observer Brain Mapping Technique by Parameter Estimation with Extended Kalman Filter 

    Soler Guevara, Andres Felipe; Giraldo, Eduardo; Molinas Cabrera, Maria Marta (Journal article; Peer reviewed, 2019)
    The underlying activity in the brain can be estimated using methods based on discrete physiological models of the neural activity. These models involve parameters for weighting the estimated source activity of previous ...
  • Navigating by decoding grid cells: Investigating the role of entorhinal grid cells through computational modeling at the intersection of neuroscience and artificial intelligence 

    Edvardsen, Vegard (Doctoral theses at NTNU;2019:338, Doctoral thesis, 2019)
    Ever since grid cells were discovered in the mammalian entorhinal cortex over a decade ago, the striking representation of space generated by these neurons has offered a peek at the inner workings of navigational processes ...
  • Edge Capacity Planning for Real Time Compute-Intensive Applications 

    Noreikis, Marius; Xiao, Yu; Jiang, Yuming (Chapter, 2019)
    Cloud computing is a major breakthrough in enabling multi-user scalable web services, process offloading and infrastructure cost savings. However, public clouds impose high network latency which became a bottleneck for ...
  • Generalized Lyapunov Demodulator for Amplitude and Phase Estimation by the Internal Model Principle 

    Ragazzon, Michael Remo Palmén; Messineo, Saverio; Gravdahl, Jan Tommy; Harcombe, David M.; Ruppert, Michael G. (Journal article; Peer reviewed, 2019)
    Effective demodulation of amplitude and phase is a requirement in a wide array of applications. Recent efforts have increased the demodulation performance, in particular, the Lyapunov demodulator allows bandwidths up to ...
  • Cryptanalysis of a Pseudorandom Generator for Cross-Border E-Commerce 

    Shi, Lelai; Liu, Suhui; Petrovic, Slobodan (Journal article; Peer reviewed, 2019)
    In this paper, we study ciphertext-only cryptanalysis of a cascade of pseudorandom sequence generators employing linear feedback shift registers (LFSRs) with so-called irregular clocking. The cascade of LFSRs is a well-known ...
  • A conceptual framework for smart city international standards 

    Guo, Hong; Gao, Shang; Li, Jingyue; Xue, Haona (Journal article; Peer reviewed, 2018)
    Smart Cities have been a global focus during the past ten years. They contribute to the achievement of the sustainability development goals (for economy, society, and environment) by leveraging information and communication ...
  • The homology of the Katsura-Exel-Pardo groupoid 

    Ortega Esparza, Eduardo (Journal article; Peer reviewed, 2020)
    We compute the homology of the groupoid associated to the Katsura algebras, and show that they capture the K-theory of the C ∗ -algebras in the sense of the (HK) conjecture posted by Matui. Moreover, we show that several ...
  • The output streams in the single server queueing system with a head of the line priority 

    Ushakov, Nikolai; Ushakov, Vladimir G. (Journal article; Peer reviewed, 2019)
    Изучена однолинейная система массового обслуживания с бесконечным числом мест для ожидания, произвольным распределением времени обслуживания и двумя пуассоновскими входящими потоками требований. Требования первого потока ...
  • Sense and reference of signifiers for elements of polygons 

    Rønning, Frode; Strømskag, Heidi (Chapter, 2019)
    This paper is based mainly on a planning meeting involving teachers and researchers before classroom sessions in a Norwegian school where 7-8-year-old children are working with concepts connected to geometrical shapes. ...
  • Analysis and evaluation of Intersystem Fault ina Hybrid AC/DC Power System and its impact on the protection System 

    Torres Olguin, Raymundo E.; Saha, Murari Mohan; Hoidalen, Hans Kristian (Journal article, 2019)
    Due to increasing environmental burden and other cost related reasons, the transmission network is undergoing major change globally. One way to utilize transmission corridors more efficiently is to have several three-phase ...
  • Power oscillation damping with virtual capacitance support from modular multilevel converters 

    Taffese, Abel Assegid; Endegnanew, Atsede Gualu; D'Arco, Salvatore; Tedeschi, Elisabetta (Journal article; Peer reviewed, 2019)
    Power oscillation damping (POD) is one of the ancillary services expected from high-voltage direct current (HVDC) converters. When providing POD to the ac side, converters draw power from the dc side, which can cause ...
  • Coordinated Data-Falsification Attacks in Consensus-based Distributed Kalman Filtering 

    Moradi, Ashkan; Dasanadoddi Venkategowda, Naveen Kumar; Werner, Stefan (Chapter; Peer reviewed, 2019)
    Abstract—This paper considers consensus-based distributed Kalman filtering subject to data-falsification attack, where Byzan- tine agents share manipulated data with their neighboring agents. The attack is assumed to be ...
  • Warm-Started Optimized Trajectory Planning for ASVs 

    Bitar, Glenn Ivan; Vestad, Vegard Nitter; Lekkas, Anastasios M.; Breivik, Morten (Chapter, 2019)
    We consider warm-started optimized trajectory planning for autonomous surface vehicles (ASVs) by combining the advantages of two types of planners: an A* implementation that quickly finds the shortest piecewise linear path, ...
  • Algebraic structure of aromatic B-series 

    Bogfjellmo, Geir (Journal article; Peer reviewed, 2019)
    Aromatic B-series are a generalization of B-series. Some of the algebraic structures on B-series can be defined analogically for aromatic B-series. This paper derives combinatorial formulas for the composition and substitution ...
  • Decomposing demographic contributions to the effective population size with moose as a case study 

    Lee, Aline Magdalena; Svalheim Markussen, Stine; Engen, Steinar; Solberg, Erling Johan; Haanes, Hallvard; Røed, Knut H.; Herfindal, Ivar; Heim, Morten; Sæther, Bernt-Erik (Journal article; Peer reviewed, 2020)
    Levels of random genetic drift are influenced by demographic factors, such as mating system, sex ratio and age structure. The effective population size (Ne) is a useful measure for quantifying genetic drift. Evaluating ...

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