• Two decades of increasing functional and phylogenetic richness in a mountaintop flora in central Norway 

  Vanneste, Thomas; Graae, Bente Jessen; Kyrkjeeide, Magni Olsen; Lindmo, Sigrid; Michelsen, Ottar; Naranjo-Orrico, Domenica J.; Ray, Courtenay A.; Vandersteene, Matthias; Verheyen, Kris; De Frenne, Pieter (Journal article; Peer reviewed, 2024)

  Questions: Analysing how multiple facets of biodiversity vary across space and time can help to predict the vulnerability of mountaintop floras to future environmental changes. Here we addressed the following questions: ...

• Optimal stability results and nonlinear duality for L∞ entropy and L1 viscosity solutions 

  Alibaud, Nathaël; Letnes, Jørgen Endal; Jakobsen, Espen Robstad (Journal article; Peer reviewed, 2024)

  We give a new and rigorous duality relation between two central notions of weak solutions of nonlinear PDEs: entropy and viscosity solutions. It takes the form of the nonlinear dual inequality: ˆ |Stu0−Stv0|ϕ0dx≤ ˆ ...

• Tuning of Online Feedback Optimization for setpoint tracking in centrifugal compressors 

  Zagorowska, Marta Anna; Ortmann, Lukas; Rupenyan, Alisa; Mercangöz, Mehmet; Imsland, Lars (Journal article; Peer reviewed, 2024)

  Online Feedback Optimization (OFO) controllers steer a system to its optimal operating point by treating optimization algorithms as auxiliary dynamic systems. Implementation of OFO controllers requires setting the parameters ...

• Film drainage and critical velocity of fluid particles in power-law fluids 

  Galantucci, Veronica; Ozan, Suat Canberk; Jakobsen, Hugo Atle (Journal article; Peer reviewed, 2024)

  This work studies the collision of fluid particles (bubbles or droplets) in non-Newtonian media whose viscosity obeys the power-law model, by analyzing the behavior of the drainage of the film between the particles. The ...

• Crystal-plasticity modelling of the yield surfaces and anelasticity in the elastoplastic transition of metals 

  Imani Aria, Arash; Holmedal, Bjørn; Manik, Tomas; Marthinsen, Knut (Journal article; Peer reviewed, 2024)

  The paper presents a full-field crystal-plasticity computational investigation of 10 με small-strain-offset yield surfaces with pointed vertexes that are seen in the elastoplastic transition of pre-strained polycrystal ...

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