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An exact ray model for oblique incident light on planar films 
Brandsrud, Maren Anna; Blümel, Reinhold; You, Chang Chuan; Marstein, Erik Stensrud; Seim, Eivind; Lukacs, Rozalia; Olsen, Espen; Kohler, Achim (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
During recent years, ray tracing has frequently been used to study the absorption characteristics of structured solar cells. However, wave properties such as absorption enhancement due to resonances in optically thin solar ...
Discovering the Dynamic Complexity of TCP Using Machine Learning and Deep Learning Techniques 
Hagos, Desta Haileselassie (Doctoral thesis / Doktoravhandling, 2020)
Understanding the dynamic complexity of the internal states of TCP is a fundamental challenge, and particularly demanding due to the dynamics and complexity of modern networks. TCP is one of the key transport protocols of ...
Particle-resolved simulations of shock-induced flow through particle clouds at different Reynolds numbers 
Osnes, Andreas Nygård; Vartdal, Magnus; Omang, Marianne Gjestvold; Reif, Bjørn Anders Pettersson (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
This study investigates the Reynolds-number dependence of shock-induced flow through stationary particle clouds at 10% volume fraction, using ensemble-averaged results from three-dimensional particle-resolved large eddy ...
Building Confidence using Beliefs and Arguments in Security Class Evaluations for IoT (long version) 
Shrestha, Manish; Johansen, Christian; Noll, Josef (Research report / Forskningsrapport, 2020)
We have previously proposed a security classification methodology for IoT systems and have applied it to the smart grid and smart home domain. This method departs from classical risk analysis and certification methods in ...
Hydrides of Laves type Ti–Zr alloys with enhanced H storage capacity as advanced metal hydride battery anodes 
Wijayanti, Ika Dewi; Denys, Roman Volodymyrovich; Suwarno, Suwarno; Volodin, Alexei A.; Lototskyy, Mykhaylo V.; Guzik, Matylda N.; Nei, Jean; Young, Kwo; Roven, Hans Jørgen; Yartys, Volodymyr (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The present work was focused on the studies of the effect of variation of stoichiometric composition of Ti–Zr based AB2±x Laves phase alloys by changing the ratio between A (Ti + Zr) and B (Mn + V + Fe + Ni) components ...
In-operation calibration of clock-bias and intrinsic parameters for pan-tilt-zoom cameras based on keypoint tracking 
Larsen, Martin Vonheim; Haavardsholm, Trym Vegard; Mathiassen, Kim (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We propose a method for jointly estimating intrinsic calibration and internal clock synchronisation for a pantilt- zoom (PTZ) camera using only data that can be acquired in the field during normal operation. Results show ...
How much power is lost in a hot-spot? A case study quantifying the effect of thermal anomalies in two utility scale PV power plants 
Skomedal, Åsmund; Aarseth, Bjørn Lupton; Selj, Josefine Helene Krogh; Haug, Halvard; Marstein, Erik Stensrud (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Methods for quick and accurate detection and diagnosis of defects in PV systems are increasingly important as the global photovoltaic (PV) capacity continues to grow at a rapid pace. Two of the most used methods for defect ...
Radar imager for Mars’ subsurface experiment—RIMFAX 
Hamran, Svein-Erik; Paige, David A.; Amundsen, Hans E. Foss; Berger, Tor; Brovoll, Sverre; Carter, Lynn; Hanssen, Leif; Dypvik, Henning; Eide, Jo; Eide, Sigurd; Ghent, Rebecca; Helleren, Øystein; Kohler, Jack; Mellon, Mike; Nunes, Daniel C.; Plettemeier, Dirk; Rowe, Kathryn; Russell, Patrick; Øyan, Mats Jørgen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract The Radar Imager for Mars’ Subsurface Experiment (RIMFAX) is a Ground Penetrating Radar on the Mars 2020 mission’s Perseverance rover, which is planned to land near a deltaic landform in Jezero crater. RIMFAX ...
The implications of landscape visual impact on future highly renewable power systems: a case study for Great Britain 
Zeyringer, Marianne (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Recent long term planning studies have demonstrated the important role of variable renewables (VRE) in decarbonising our energy system. However, cost-optimising models do not capture the visual impact of VREs on the landscape ...
The Atacama large aperture submillimeter telescope (AtLAST) concept 
Klaassen, Pamela D.; Mroczkowski, Tony; Cicone, Claudia; Hatziminaoglou, Evanthia; Sartori, Sabrina; De Breuck, Carlos; Bryan, Sean; Dicker, Simon R.; Duran, Carlos; Groppi, Chris; Kärcher, Hans; Kawabe, Ryohei; Kohno, Kotaro; Geach, James (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The coldest and densest structures of gas and dust in the Universe have unique spectral signatures across the (sub-)millimetre bands (υ ≈30 - 950 GHz). The current generation of single dish facilities has given a glimpse ...
Preferential Orientation of Photochromic Gadolinium Oxyhydride Films 
Elbruz, Murat Baba; Montero, Jose; Moldarev, Dmitrii; Moro, Marcos Vinicius; Wolff, Max; Primetzhofer, Daniel; Sartori, Sabrina; Zayim, Esra; Karazhanov, Smagul (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We report preferential orientation control in photochromic gadolinium oxyhydride (GdHO) thin films deposited by a two-step process. Gadolinium hydride (GdH2-x) films were grown by reactive magnetron sputtering, followed ...
A network design algorithm for multicast communication architectures in smart transmission grids 
Adrah, Charles Mawutor; Palma, David; Kure, Øivind; Heegaard, Poul Einar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
In future smart transmission grids, there are distributed applications that will benefit from the deployment of Internet Protocol (IP) multicast technology for communication. Sharing of Routable-Sample Values (R-SV) and ...
A Methodology for Security Classification applied to Smart Grid Infrastructures 
Shrestha, Manish; Johansen, Christian; Noll, Josef; Roverso, Davide (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The electricity grid is an important critical infrastructure that is undergoing major changes, due to the Internet of Things (IoT) and renewable energy, heading towards the smart grid. However, besides the many good promises ...
Preparing Wi-Fi Networks for Novel Services in Smart Infrastructure 
Morshedi, Maghsoud (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2020)
Wi-Fi will be the preferred access network in smart infrastructure, which is a considerably cheaper alternative of mobile broadband. Emerging services such as Internet of things (IoT), virtual reality (VR) and ehealth, ...
A parallel approach for detecting OpenFlow rule anomalies based on a general formalism 
Aryan, Ramtin; Yazidi, Anis; Kure, Øivind; Engelstad, Paal E. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
As the policies of a software-defined networking (SDN) network can be updateddynamically and often at a high pace, conflicts between policies can easily occur. Dueto the large number of switches and heterogeneous policies ...
Hydrogen-related defects measured by infrared spectroscopy in multicrystalline silicon wafers throughout an illuminated annealing process 
Weiser, Philip Michael; Monakhov, Eduard; Haug, Halvard; Wiig, Marie Syre; Søndenå, Rune (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Hydrogen (H) is thought to be strongly involved in the light and elevated temperature-induced degradation observed predominantly in p-type silicon wafers, but the nature of the defect or defects involved in this process ...
Shock-induced flow through particle clouds 
Osnes, Andreas Nygård (Doctoral thesis / Doktoravhandling, 2019)
High-speed flows through dense particle clouds occur in many technological applications such as explosion mitigation systems, combustion engines, drug-delivery systems, as well as natural phenomena such as volcanic eruptions ...
Lightweight complex metal hydrides for Li-, Na-, and Mg-based batteries 
Guzik, Matylda N.; Mohtadi, Rana; Sartori, Sabrina (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Energy density and safety are the main factors that govern the development of the rechargeable battery technology. Currently, batteries beyond typical Li-ion batteries such as those based on solid-state electrolytes (SSEs) ...
Computational analysis of shock-induced flow through stationary particle clouds 
Osnes, Andreas Nygård; Vartdal, Magnus; Omang, Marianne Gjestvold; Reif, Bjørn Anders Pettersson (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
We investigate the shock-induced flow through random particle arrays using particle-resolved Large Eddy Simulations for different incident shock wave Mach numbers, particle volume fractions and particle sizes. We analyze ...
Application of Hydrides in Hydrogen Storage and Compression: Achievements, Outlook and Perspectives 
Bellosta von Colbe, Jose; Ares, J.-R.; Barale, J.; Baricco, M.; Buckley, C.; Capurso, Giovanni; Gallandat, N.; Grant, D. M.; Guzik, Matylda N.; Jacob, Isaac; Jensen, E. H.; Jensen, T. R.; Jepsen, J.; Klassen, Thomas; Lototskyy, Mykhaylo; Manickam, K.; Montone, A.; Puszkiel, Julian; Sartori, Sabrina; Sheppard, D. A.; Stuart, A.; Walker, G.; Webb, C. J.; Yang, H.; Yartys, Volodymyr; Züttel, Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Metal hydrides are known as a potential efficient, low-risk option for high-density hydrogen storage since the late 1970s. In this paper, the present status and the future perspectives of the use of metal hydrides for ...
Deploying Energy Efficient Wi-Fi Networks 
Morshedi, Maghsoud; Noll, Josef (Chapter / Bokkapittel / SubmittedVersion, 2019)
The growing number of Wi-Fi networks at homes, buildings and public areas can consume excessive energy and therefore increase CO2 emissions. Hence, the aim of this paper is to investigate the energy consumption of Wi-Fi ...
Chaos: A new mechanism for enhancing the optical generation rate in optically thin solar cells 
Seim, Eivind; Kohler, Achim; Lukacs, Rozalia; Brandsrud, Maren Anna; Marstein, Erik Stensrud; Olsen, Espen; Blümel, R. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The photogenerated current of solar cells can be enhanced by light management with surface structures. For solar cells with optically thin absorbing layers, it is especially important to take advantage of this fact through ...
Magnetic permeability in Fresnel’s equation 
Hågenvik, Hans Olaf; Skaar, Johannes (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
Magnetic permeabilities derived for infinite, periodic media are used in the Fresnel equation to calculate the reflection from corresponding semi-infinite media. By comparison to finite-difference time-domain (FDTD) ...
Comparing RLS and LMS adaptive equalizers for large hydrophone arrays in underwater acoustic communication channels 
Rudander, Jacob Hiden; Husøy, Thor; Orten, Pål; Walree, Paul van (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2019)
There is an expected growth in underwater acoustic data traffic. To meet the demand of high data throughput, a migration towards the very high frequency band (>100 kHz) will be necessary. The increment in frequency comes ...
Defect Recognition and Power Loss Estimation Using Infrared Thermography 
Aarseth, Bjørn Lupton; Marstein, Erik Stensrud (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
This study investigates how thermal signatures observed in PV systems using infrared thermography (IRT) affect the performance of PV modules and strings. To assess this, we use IRT images as a basis for circuit modeling ...
Effect of ball milling and cryomilling on the microstructure and first hydrogenation properties of TiFe + 4 wt.% Zr alloy 
Lv, Peng; Guzik, Matylda N.; Sartori, Sabrina; Huot, Jacques (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
In this paper, we report the microstructure and first hydrogenation properties of TiFe cast with 4 wt.% of Zr. Measurements were made in as-cast state and after processing by ball milling and cryomilling. It was found that ...
Robust fault and icing diagnosis in unmanned aerial vehicles using LPV interval observers 
Rotondo, Damiano; Cristofaro, Andrea; Johansen, Tor Arne; Nejjari, Fatiha; Puig, Vicenç (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
This paper proposes a linear parameter varying (LPV) interval unknown input observer for the robust fault diagnosis of actuator faults and ice accretion in unmanned aerial vehicles (UAVs) described by an uncertain model. ...
Behavioural artificial intelligence: an agenda for systematic empirical studies of artificial inference 
Pedersen, Tore; Johansen, Christian (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
Artificial intelligence (AI) receives attention in media as well as in academe and business. In media coverage and reporting, AI is predominantly described in contrasted terms, either as the ultimate solution to all human ...
A Deep Learning Approach to Dynamic Passive RTT 
Hagos, Desta Haileselassie; Engelstad, Paal E.; Yazidi, Anis; Griwodz, Carsten (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2019)
The Round-Trip Time (RTT) is a property of the path between a sender and a receiver communicating with Transmission Control Protocol (TCP) over an IP network and over the public Internet. The end-to-end RTT value influences ...
Mechanochemistry of Metal Hydrides: Recent Advances 
Huot, Jacques; Cuevas, Fermìn; Deledda, Stefano; Edalati, Kaveh; Filinchuk, Yaroslav; Grosdidier, Thierry; Hauback, Bjørn; Heere, Michael; Jensen, Torben R.; Latroche, Michel; Sartori, Sabrina (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
This paper is a collection of selected contributions of the 1st International Workshop on Mechanochemistry of Metal Hydrides that was held in Oslo in May 2018. In this paper, the recent developments in the use of ...
Tunable holmium-doped fiber laser with multiwatt operation from 2025 nm to 2200 nm 
Holmen, Lars Grønmark; Shardlow, Peter C; Barua, Pranabesh; Sahu, Jayanta K; Simakov, Nikita; Hemming, Alexander; Andrew Clarkson, W (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The emission band of holmium-doped silica fibers extends beyond 2200 nm, which means these lasers have the potential of covering considerable parts of the atmospheric transmission window between ∼2100  nm and 2250 nm. ...
Evaluation of safety distances for storage of explosive materials using a combination of thermochemical computations and CFD 
Fossum, Hannibal Eie; Osnes, Andreas Nygård; Kristensen, Tor Erik (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2019)
A novel approach to calculating TNT equivalencies and safety distances for explosives, using a combination of thermochemical computations and computational fluid dynamics, is presented. This enables the estimation of safety ...
Robust distributed control of quasilinear reaction-diffusion equations via infinite-dimensional sliding modes 
Cristofaro, Andrea (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
This paper investigates the problem of robust tracking control for quasilinear reaction–diffusion partial differential equations subject to external unknown perturbations. The considered class of equations is quite general, ...
Stability and distributed control of degenerate diffusion equations 
Cristofaro, Andrea; Giambò, Roberto; Giannoni, Fabio (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
This paper is concerned with stability and control of the parabolic p-Laplace equation. The autonomous equation is shown to be asymptotically stable, while the stronger property of exponential stability is guaranteed by ...
Recent Advances in the Use of Black TiO2 for Production of Hydrogen and Other Solar Fuels 
Chatzitakis, Athanasios Eleftherios; Sartori, Sabrina (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
Black TiO2 has emerged as one of the most promising photocatalysts recently discovered. The reason behind its catalytic activity is considered to be due to the presence of defects and Ti3+ species at the surface of black ...
The Safe Pregnancy study - promoting safety behaviours in antenatal care among Norwegian, Pakistani and Somali pregnant women: a study protocol for a randomized controlled trial 
Henriksen, Lena; Flaathen, Eva M; Angelshaug, Jeanette; Garnweidner-Holme, Lisa; Småstuen, Milada C; Noll, Josef; Taft, Angela; Schei, Berit; Lukasse, Mirjam (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Background Intimate partner violence (IPV) around the time of pregnancy is a recognized global health problem with damaging consequences. However, little is known about the effect of violence assessment and ...
Linear motion of multiple superposed viscous fluids 
Vartdal, Magnus; Osnes, Andreas Nygård (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
In this paper the small-amplitude motion of multiple superposed viscous fluids is studied as a linearized initial-value problem. The analysis results in a closed set of equations for the Laplace transformed amplitudes of ...
Performance Analysis of RF Energy Harvesting and Information Transmission based on NOMA with Interfering Signal for IoT Relay Systems 
Rauniyar, Ashish; Engelstad, Paal E.; Østerbø, Olav Norvald (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
Owing to the exponential proliferation of the Internet of Things (IoT), it is anticipated that the number of small IoT devices will grow expeditiously over the next few years. These billions of small IoT sensor and devices ...
Energy Efficient Target Coverage in Wireless Sensor Networks Using Adaptive Learning 
Rauniyar, Ashish; Kunwar, Jeevan; Haugerud, Hårek; Yazidi, Anis; Engelstad, Paal E. (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2019)
Over the past few years, innovation in the development of Wireless Sensor Networks (WSNs) has evolved rapidly. WSNs are being used in many application fields such as target coverage, battlefield surveillance, home security, ...
Reachability and stabilization of scheduled steady-states for LPV single-input systems 
Corona, Dario; Cristofaro, Andrea; Rotondo, Damiano (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
The aim of this work is characterizing the class of LPV systems that admit steady-state trajectories depending exclusively on the scheduling parameter. In particular, it will be shown that only certain parameter dependent ...
Four definitions of magnetic permeability for periodic metamaterials 
Skaar, Johannes; Hågenvik, Hans Olaf; Dirdal, Christopher Andrew (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
We state and compare four different definitions of magnetic permeability for periodic, artificial media, or metamaterials. The connections among them, and properties in general, are discussed in detail, including causality, ...
Fresnel's equations in statics and quasistatics 
Skaar, Johannes (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Fresnel's equations describe the reflection and transmission of electromagnetic waves at an interface between two media. It turns out that these equations can be used in quasistatics and even statics, for example to ...
Automated Drawing of Railway Schematics Using Numerical Optimization in SAT 
Luteberget, Bjørnar Steinnes; Claessen, Koen; Johansen, Christian (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
Schematic drawings showing railway tracks and equipment are commonly used to visualize railway operations and to communicate system specifications and construction blueprints. Recent advances in on-line collaboration and ...
Dynamic Structural Operational Semantics 
Johansen, Christian; Owe, Olaf (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
We introduce Dynamic Structural Operational Semantics (DSOS or Dynamic SOS) as a framework for describing semantics of programming languages that include dynamic software upgrades, i.e., for upgrading software code during ...
RF energy harvesting and information transmission based on NOMA for wireless powered IoT relay systems 
Rauniyar, Ashish; Engelstad, Paal E.; Østerbø, Olav Norvald (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Amidst the rapid development of the fifth generation (5G) networks, Internet of Things (IoT) is considered as one of the most important part of 5G next generation networks as it can support massive object communications. ...
Diamagnetism and the dispersion of the magnetic permeability 
Dirdal, Christopher Andrew; Skaar, Johannes (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
It is well known that the usual Kramers–Kronig relations for the relative permeability function μ(ω) are not compatible with diamagnetism (μ(0) < 1) and a positive imaginary part (Im μ(ω) > 0 for ω > 0). We demonstrate ...
Energy Usage Forecasting for LTE: A Network-Wide Traffic Measurements Study 
Kure, Endre Hegland; Engelstad, Paal E.; Maharjan, Sabita; Gjessing, Stein; Zhang, Xing; Zhang, Yan (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2018)
Energy usage in LTE base stations are driven by spectral efficiency and traffic. To predict the energy usage these parameters must be forecasted. In this work we analyse hourly measurements collected from more than 12000 ...
Higher order multipoles in metamaterial homogenization 
Dirdal, Christopher Andrew; Hågenvik, Hans Olaf; Haave, Haakon Aamodt; Skaar, Johannes (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
The higher order multipoles above the electric quadrupole are commonly neglected in metamaterial homogenization. We show that they nevertheless can be significant when the second-order spatial dispersive effects, such as ...
Space QUEST mission proposal: experimentally testing decoherence due to gravity 
Joshi, Siddarth Koduru; Pienaar, Jacques; Ralph, Timothy C; Cacciapuoti, Luigi; McCutcheon, Will; Rarity, John; Giggenbach, Dirk; Lim, Jin Gyu; Makarov, Vadim; Fuentes, Ivette; Scheidl, Thomas; Beckert, Erik; Bourennane, Mohamed; Bruschi, David Edward; Cabello, Adán; Capmany, Jose; Carrasco-Casado, Alberto; Diamanti, Eleni; Dušek, Miloslav; Elser, Dominique; Gulinatti, Angelo; Hadfield, Robert H; Jennewein, Thomas; Kaltenbaek, Rainer; Krainak, Michael A; Lo, Hoi-Kwong; Marquardt, Christoph; Milburn, Gerard; Peev, Momtchil; Poppe, Andreas; Pruneri, Valerio; Renner, Renato; Salomon, Christophe; Skaar, Johannes; Solomos, Nikolaos; Stipčević, Mario; Torres, Juan P; Toyoshima, Morio; Villoresi, Paolo; Walmsley, Ian; Weihs, Gregor; Weinfurter, Harald; Zeilinger, Anton; Żukowski, Marek; Ursin, Rupert (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Models of quantum systems on curved space-times lack sufficient experimental verification. Some speculative theories suggest that quantum correlations, such as entanglement, may exhibit different behavior to purely classical ...
Stability and Phase Formation in the (Li/Na)6C60–H Systems Studied by Neutron Scattering 
Sartori, Sabrina; Guzik, Matylda N.; Knudsen, Kenneth Dahl; Sørby, Magnus Helgerud; Teprovich, Jr., Joseph A.; Zidan, Ragaiy; Hauback, Bjørn (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Small-angle neutron scattering combined with powder neutron diffraction was employed to study the phase formation upon absorption/desorption of hydrogen gas in Li- and Na-intercalated fullerides. The comparative system ...
Hardware-in-the-loop testing of impedance protection with compensation of fault impedance and DG infeed current 
Pandakov, Konstantin; Adrah, Charles Mawutor; Liu, Zhou; Hoidalen, Hans Kristian; Kure, Øivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Exact ray theory for the calculation of the optical generation rate in optically thin solar cells 
Brandsrud, Maren Anna; Seim, Eivind; Lukacs, Rozalia; Kohler, Achim; Marstein, Erik Stensrud; Olsen, Espen; Blümel, Reinhold (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
There is a profound duality between rays and waves. In fact, 70 years ago, in the context of quantum mechanics, Feynman showed that rays, properly equipped with phases and correctly summed, provide exact solutions of the ...
Terrain referenced navigation using sand dunes and sand ripples in precense of tides 
Hagen, Ove Kent; Ånonsen, Kjetil Bergh (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
We investigated using terrain referenced navigation in shallow water in the presence of unknown tide, with an autonomous underwater vehicle equipped with a high resolution bathymetric sensor. The mission area had both ...
Internet Lite for Sustainable Development 
Noll, Josef; Mansour, Wisam A.; Holst, Christine; Dixit, Sudhir; Sukums, Felix; Ngowi, Helena; Radovanović, Danica; Mwakapeje, Elibariki; Isabwe, Ghislain Maurice Norbert; Winkler, Andrea Sylvia; Ngowi, Bernard James (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The Digital Divide is one of the key challenges for mankind. Despite attempts to digitally include people, the divide is bigger than ever. This contribution [1] to a sustainable future promotes “Internet lite” as the new ...
Operando SAXS/WAXS on the a-P/C as the Anode for Na-Ion Batteries 
Povia, Mauro; Sottmann, Jonas; Portale, Giuseppe; Knudsen, Kenneth Dahl; Margadonna, Serena; Sartori, Sabrina (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
A complete chemical and morphological analysis of the evolution of battery electrode materials can be achieved combining different and complementary techniques. Operando small-angle X-ray scattering (SAXS) and wide-angle ...
An Incremental Approach for Swift OpenFlow Anomaly Detection 
Aryan, Ramtin; Yazidi, Anis; Engelstad, Paal E. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Software Defined Networking (SDN) is designed for dynamic policy update where frequent changes are pushed to the forwarding devices. Different offline approaches for detecting misconfiguration anomalies in SDN by taking a ...
Methods for Quality Control of Monitoring Data from Commercial PV Systems 
Øgaard, Mari Benedikte; Haug, Halvard; Selj, Josefine Helene Krogh (Conference object / Konferansebidrag / PublishedVersion, 2018)
The aim of this work is to develop and test new methods for quality control of data from commercial monitoring systems for small and medium sized PV installations. Such installations often have limited or non-existent ...
Health care professionals' attitudes toward, and experiences of using, a culture-sensitive smartphone app for women with gestational diabetes mellitus: Qualitative study 
Garnweidner-Holme, Lisa; Andersen, Therese; Sando, Mari Wastvedt; Noll, Josef; Lukasse, Mirjam (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Background: The increasing prevalence of gestational diabetes mellitus (GDM) among women of different ethnic backgrounds provides new challenges for health care professionals, who often find it difficult to provide information ...
Modeling of recombination strength at grain boundaries after phosphorus diffusion gettering and the effect of hydrogen passivation 
Wiig, Marie Syre; Haug, Halvard; Søndenå, Rune; Marstein, Erik Stensrud (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present a method for extracting local recombination rates from photoluminescence images of double side passivated wafers, using simulations of lateral charge carrier diffusion in two dimensions. By fitting the simulated ...
Pyplis — A Python software toolbox for the analysis of SO2 camera images for emission rate retrievals from point sources 
Gliss, Jonas; Stebel, Kerstin; Kylling, Arve; Dinger, Anna Solveig; Sihler, H.; Sudbø, Aasmund (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Ultraviolet (UV) SO2 cameras have become a common tool to measure and monitor SO2 emission rates, mostly from volcanoes but also from anthropogenic sources (e.g., power plants or ships). Over the past decade, the analysis ...
Temperature dependent photoluminescence imaging calibrated by photoconductance measurements 
Haug, Halvard; Søndenå, Rune; Wiig, Marie Syre; Marstein, Erik Stensrud (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
In this paper we present a novel method for measuring temperature dependent lifetime images with high spatial resolution using photoconductance calibrated photoluminescence (PL) imaging. In order to achieve this, PL images ...
Secure detection in quantum key distribution by real-time calibration of receiver 
Marøy, Øystein; Makarov, Vadim; Skaar, Johannes (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
The single-photon detectionefficiency of the detector unit is crucial for the security of common quantum key distribution protocols like Bennett-Brassard 1984 (BB84). A low value for the efficiency indicates a possible ...
Dielectric media considered as vacuum with sources 
Hågenvik, Hans Olaf; Bløtekjær, Kjell; Skaar, Johannes (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
Conventional textbook treatments on electromagnetic wave propagation consider the induced charge and current densities as “bound” and therefore absorb them into a refractive index. In principle, it must also be possible ...
Effect of Al presence and synthesis method on phase composition of the hydrogen absorbing La–Mg–Ni-based compounds 
Guzik, Matylda N.; Lang, Julien; Huot, Jacques; Sartori, Sabrina (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
Results for (La,Mg)Ni3.5 and (La,Mg)(Ni,Al)3.5 systems synthesized by metallurgical and mechanochemical techniques are reported. Powder X-ray and neutron diffraction combined with Rietveld refinements and profile analysis ...
On the Conductivity of KBaPO4 and Its Decomposition in Steam and Water 
Elstad, Aleksander A; Nguyen, Kevin; Sartori, Sabrina; Norby, Truls Eivind (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
KBaPO4 – recently reported to hydrate in steam at 80°C into a novel low-temperature protonic conductor – was synthesized by a solid state reaction and its electrical properties characterized by impedance spectroscopy. At ...
Hydrogen storage in magnesium hydride doped with niobium pentaoxide and graphite. C. De Piccoli, S. Dal Toè, S. Lo Russo, A. Maddalena, P. Plade, A. Saber, S. Sartori, G. Principi, Chemical Engineering Transactions, Volume 4, (2004), 343-347. 
Sartori, Sabrina (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2004)
 
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Date Issued2020 - 2021 (16)2010 - 2019 (49)2004 - 2009 (1)Document TypeTidsskriftartikkel (55)Bokkapittel (7)Doktoravhandling (2)Forskningsrapport (1)Konferansebidrag (1)AuthorSartori, Sabrina (12)Skaar, Johannes (8)Engelstad, Paal E. (7)Marstein, Erik Stensrud (7)Guzik, Matylda N. (6)... View MorePeer ReviewedPeer reviewed (61)
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