• Extreme values for Sn(σ,t) near the critical line 

      Chirre, Andrés (Journal article; Peer reviewed, 2019)
      Let S(σ, t) =1πargζ(σ+it)be the argument of the Riemann zeta function at the point σ+itof the critical strip. Fo r n ≥1and t >0we defineSn(σ, t)=t∫0Sn−1(σ, τ)dτ+δn,σ,where δn,σis a specific constant depending on σand n. ...
    • Extreme values of the Riemann zeta function and its argument 

      Bondarenko, Andrii; Seip, Kristian (Journal article; Peer reviewed, 2018)
      We combine our version of the resonance method with certain convolution formulas for ζ(s) and logζ(s) . This leads to a new Ω result for |ζ(1/2+it)| : The maximum of |ζ(1/2+it)| on the interval 1≤t≤T is at ...
    • Extreme Wave Generation, Breaking and Impact Simulations With REEF3D 

      Bihs, Hans; Kamath, Arun; Alagan Chella, Mayilvahanan; Arntsen, Øivind Asgeir (Chapter, 2017)
      An accurate description of extreme waves is necessary in order to estimate maximum wave forces on offshore structures. On several occasions freak waves have been observed in the past, some causing severe damage. In order ...
    • Extreme Wave Generation, Breaking, and Impact Simulations Using Wave Packets in REEF3D 

      Bihs, Hans; Kamath, Arun; Alagan Chella, Mayilvahanan; Arntsen, Øivind Asgeir (Journal article; Peer reviewed, 2019)
      On several occasions, freak waves have been observed in the past, some causing severe damage. In order to model such extreme wave conditions, one possibility is to use focused waves of first- or second-order based on ...
    • Extremely low thermal conductivity and high thermoelectric performance in liquid-like Cu2Se1-xSx polymorphic materials 

      Zhao, Kunpeng; Blichfeld, Anders Bank; Eikeland, Espen; Qiu, Pengfei; Ren, Dudi; Iversen, Bo B; Shi, Xun; Chen, Lidong (Journal article, 2017)
      Recently, copper chalcogenides Cu2−xδ (δ = S, Se, Te) have attracted great attention due to their exceptional thermal and electrical transport properties. Besides these binary Cu2−xδ compounds, the ternary Cu2−xδ solid ...
    • Extremum seeking for real-time optimal drilling control 

      Aarsnes, Ulf Jakob Flø; Aamo, Ole Morten; Krstic, Miroslav (Peer reviewed; Journal article, 2019)
      This paper demonstrate the feasibility and illustrates some challenges of applying extremum seeking control to online optimization of the drilling process. Specifically, we consider the problem of finding the hook-load ...
    • Extremum-Seeking Control for Harmonic Mitigation in Electrical Grids of Marine Vessels 

      Haring, Mark; Skjong, Espen; Johansen, Tor Arne; Molinas, Marta (Journal article; Peer reviewed, 2019)
      This paper focuses on the minimization of the harmonic distortion in multibus electrical grids of marine vessels using a single active power filter. An active power filter is commonly used for local harmonic mitigation. ...
    • Extremum-seeking control for steady-state performance optimization of nonlinear plants with time-varying steady-state outputs 

      Hazeleger, Leroy; Haring, Mark; van de Wouw, Nathan (Journal article; Peer reviewed, 2018)
      Extremum-seeking control is a useful tool for the steady-state performance optimization of plants for which the dynamics and disturbance situation can be unknown. The case when steady-state plant outputs are constant ...
    • Extrinsic calibration for motion estimation using unit quaternions and particle filtering 

      Sveier, Aksel; Egeland, Olav (Peer reviewed; Journal article, 2020)
      This paper presents a method for calibration of the extrinsic parameters of a sensor system that combines a camera with an inertial measurement unit (IMU) to estimate the pendulum motion of a crane payload. The camera ...
    • Eye Tracking as a Tool For Engineering Education 

      Vijayan, Kavin Kathiresh; Mork, Ola Jon; Hansen, Irina-Emily (Journal article; Peer reviewed, 2018)
      The concept of eye tracking is developing rapidly across various disciplines, and this inspired the current study of using this technology for an educational purpose. Eye tracking is a measuring method to either identify ...
    • Eye-tracking and artificial intelligence to enhance motivation and learning 

      Sharma, Kshitij; Giannakos, Michail; Dillenbourg, Pierre (Peer reviewed; Journal article, 2020)
      The interaction with the various learners in a Massive Open Online Course (MOOC) is often complex. Contemporary MOOC learning analytics relate with click-streams, keystrokes and other user-input variables. Such variables ...
    • Eyes on the future: buffering increased costs of incubation by abandoning offspring 

      Hanssen, Sveinn Are; Erikstad, Kjell E.; Sandvik, Hanno; Tveraa, Torkild; Bustnes, Jan Ove (Peer reviewed; Journal article, 2023)
      Life history theory states that the resources invested in current reproduction must be traded off against resources needed for survival and future reproduction. Long-lived organisms have a higher residual reproductive value ...
    • EZPlugIn: Plug-n-Play Framework for a Heterogeneous IoT Infrastructure for Smart Home 

      Kar, Pushpendu; Wang, Hao (Peer reviewed; Journal article, 2021)
      Internet of Things (IoT) introduces a very large scale of technologies. An IoT system is comprised of a large number of smart devices and sensors connected together that are often non-intrusive, transparent, and invisible. ...
    • «E’ hel ei – e’ halv ei» – om realiseringa av ubestemt hokjønnsartikkel i Oslo 

      Hårstad, Stian; Opsahl, Toril (Peer reviewed; Journal article, 2021)
      Studiar av genusendring i norsk har jamt over brukt mykje plass på inventaret i kategorien «ubestemt artikkel», som fleire stader viser teikn til å skrøkke frå tre til to typar. I dei fleste samanhengar vert dei tre typane ...
    • F-CBR: An Architecture for Federated Case-Based Reasoning 

      Jaiswal, Amar; Yigzaw, Kassaye Yitbarek; Øzturk, Pinar (Journal article; Peer reviewed, 2022)
      Case-based reasoning (CBR) is a problem-solving methodology in artificial intelligence that attempts to solve new problems using past experiences known as cases. Experiences collected in a single case base from an institution ...
    • F. Wiener’s Trick and an Extremal Problem for H<sup>p</sup> 

      Brevig, Ole Fredrik; Grepstad, Sigrid; Instanes, Sarah May (Peer reviewed; Journal article, 2022)
      For 0<p≤∞, let Hp denote the classical Hardy space of the unit disc. We consider the extremal problem of maximizing the modulus of the kth Taylor coefficient of a function f∈Hp which satisfies ∥f∥Hp≤1 and f(0)=t for some ...
    • F2c2C-DM: A Fog-to-cloudlet-to-Cloud Data Management Architecture in Smart City 

      Sinaeepourfard, Amir; Krogstie, John; Petersen, Sobah Abbas; Ahlers, Dirk (Chapter, 2019)
      Smart city solutions make a high-level technological innovation in a city to expand their citizens' quality of life by several different technological management strategies (such as resource management and data management) ...
    • The Faá di Bruno Hopf algebra for multivariable feedback recursions in the center problem for higher order Abel equations 

      Ebrahimi-Fard, Kurusch; Gray, W. Steven (Peer reviewed; Journal article, 2019)
      Poincaré’s center problem asks for conditions under which a planar polynomial system of ordinary differential equations has a center. It is well understood that the Abel equation naturally describes the problem in a ...
    • FABIO – The Construction of the Food and Agriculture Biomass Input-Output Model 

      Bruckner, Martin; Wood, Richard; Moran, Daniel; Kuschnig, N; Wieland, Hanspeter; Maus, Viktor; Borner, Jan (Journal article; Peer reviewed, 2019)
      Harvested biomass is linked to final consumption by networks of processes and actors that convert and distribute food and nonfood goods. Achieving a sustainable resource metabolism of the economy is an overarching challenge ...
    • Fabrication and Characterisation of Porous Coatings Enriched with Copper on CP Titanium Grade 2 under Plasma Electrolytic Oxidation 

      Rokosz, Krzysztof; Hryniewicz, Tadeusz; Gaiaschi, Sofia; Chapon, Patrick; Raaen, Steinar; Dudek, Lukasz; malorny, winfried (Journal article; Peer reviewed, 2019)
      In the present paper, coatings obtained on CP Titanium Grade 2 samples by Plasma Electrolytic Oxidation (PEO) in electrolyte containing concentrated phosphoric acid H3PO4 with copper nitrate Cu(NO3)2∙3H2O, are studied with ...