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Photogrammetry for Drone Inspections: Introducing Advanced Path Planning for Automated Drone Operations
(Master thesis, 2018)Some ideas and procedures for realizing a system for automated inspection of structures have been presented throughout this thesis. The few presented results shows a reliable procedure for estimating normals in a coarse ... -
Photogrammetry-based 3D scanning for supporting design activities and testing in early stage product development
(Peer reviewed; Journal article, 2021)In the early stages of product development and design, physical prototypes are designed and built from varying materials with the aim of providing valuable experience and decision support for the project team. In the era ... -
Photography - A New Tool in Needfinding
(Chapter, 2015)In this paper we are proposing the use of photography as a dedicated tool to capture latent needs and create anchor points for future solutions in engineering design. We are grounded in user centric design. Based on a ... -
Photography - Bridging the Gap between Needfinding and Visual Thinking
(Master thesis, 2015)Founding on the pre-master project Photography a new tool in needfinding (Wulvik et al., 2015) as starting point and based on theory from the fields of needfinding and visual thinking, an explorative experiment has ... -
Photoionization model for streamer propagation mode change in simulation model for streamers in dielectric liquids
(Journal article; Peer reviewed, 2019)Radiation is important for the propagation of streamers in dielectric liquids. Photoionization is a possibility, but the effect is difficult to differentiate from other contributions. In this work, we model radiation from ... -
Photoluminescence of InAs/Ga(N)As quantum dot intermediate band solar cells
(Master thesis, 2014)In this thesis InAs/Ga(N)As quantum dot intermediate band solar cells (QDIBSCs) are studied using photoluminescence (PL) spectroscopy. The samples in this thesis have been complete QD-IBSCs with doping in the substrate, the ... -
Photoluminescence study of as-grown self-catalyzed GaAs/AlGaAs core-shell nanowires
(Master thesis, 2012)A macro-photoluminescence study of self-catalyzed nanowires, using a specializedsetup for this purpose, has been performed. Several samples were even comparedto single nanowire micro-photoluminescence measurements, on the ... -
Photoluminescence Study of Enhanced Light Emission from HgCdTe Thin Films due to a Surface Pattern
(Master thesis, 2015)HgCdTe thin film samples with a CdTe passivation layer have been grown by molecular beam epitaxy, and photolithography has been used to etch a triangular pattern of holes into the passivation layer. The enhancement in ... -
Photon Activity from Partial Discharges in Liquid Dielectrics: Experimental test setup and measurements
(Master thesis, 2014)New subsea processing plants are planned to operate at large depths, down to 5000 meters. Power electronic converters are a crucial part of the plants hardware. In order for the converters to operate at such deep depths, ... -
Photon-ALP oscillations at CTA energies
(Peer reviewed; Journal article, 2023)Axions and axion-like-particles (ALPs) are well motivated beyond the standard model particles that can explain a variety of unsolved problems in physics, such as the strong CP problem and the nature of dark matter. These ... -
Photon-ALP oscillations at TeV energies
(Peer reviewed; Journal article, 2022)Axion and axion-like-paricles (ALPs) are well motivated cold dark matter candidates. Nevertheless, an astoundingly huge parameter space remains unexplored despite much effort, ranging from fuzzy dark matter at ma∼10−22 eV ... -
Photon-ALP oscillations with ELMAG
(Peer reviewed; Journal article, 2022)ELMAG is a Monte Carlo program made to simulate electromagnetic cascades initiated by high-energy photons interacting with the extragalactic background light. Photons propagating in an external magnetic field may oscillate ... -
Photon-assisted Landau-Zener transitions in driven few-level systems
(Master thesis, 2019)I denne avhandlinga utforskar me Landau-Zener overgangar i drivne få-nivå system. Me behandlar drivingsfeltet både semi-klassisk (som ein tidsavhengig parameter i Hamilton operatoren) og heilt kvantemekanisk (som eit ... -
Photonic composite materials from cellulose nanorods and clay nanolayers
(Peer reviewed; Journal article, 2020)Cellulose nano crystals (CNCs) are promising materials for energy efficient buildings related to the control of reflectivity and heat absorption/reflection of light. In this sense it is important to improve CNCs films fire ... -
Photonic crystal light emitting diode
(Master thesis, 2010)This master's thesis describe electromagnetic simulations of a gallium antimonide (GaSb) light emitting diode, LED. A problem for such devices is that most of the generated light is reflected from the surface due to total ... -
Photonic Crystal Structures: Design and Fabrication
(Master thesis, 2013)This thesis is devoted to the study of photonic crystal (PhC) design and fabrication. The design of a trigonal PhC waveguide is evaluated using finite element method (FEM) simulation software, and some considerations ... -
Photonic Crystal Waveguide Fabrication
(Master thesis, 2012)This research is entirely devoted to the study and fabrication of structures with periodic dielectric constants, also known as photonic crystals (PhCs). These structures show interesting dispersion characteristics which ... -
Photonic-crystal membranes for optical detection of single nano-particles, designed for biosensor application
(Peer reviewed; Journal article, 2012)A sensor designed to detect bio-molecules is presented. The sensor exploits a planar 2D photonic crystal (PC) membrane with sub-micron thickness and through holes, to induce high optical fields that allow detection of ... -
Photoperiodism and overwintering in boreal and sub-Arctic Calanus finmarchicus populations
(Journal article, 2023)ABSTRACT: The copepod Calanus finmarchicus, a key species in the North Atlantic, generally spends the non-productive season by descending into deep waters and entering diapause, a physiological state characterized by reduced ...