Browsing Institutt for fysikk by Title
Now showing items 263-282 of 2701
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Bottom-Up Fabrication of Oxygen Reduction Electrodes with Atomic Layer Deposition for High-Power-Density PEMFCs
(Journal article, 2021)As the platinum (Pt) loading in proton exchange membrane fuel cell cathodes is driven down to reduce costs, catalyst utilization becomes increasingly important. Here, we report an atomic layer deposition-facilitated electrode ... -
Boundary artifact analysis in diffusion modelling with stochastic differential equations
(Master thesis, 2019)In many research areas, it is common to model advection-diffusion problems with Lagrangian particle methods. This is the same as solving a stochastic differential equation, with drift and diffusion coefficients derived ... -
Bright, noniridescent structural coloration from clay mineral nanosheet suspensions
(Journal article; Peer reviewed, 2022) -
Brittle to Quasi-Brittle Transitions in the Soft Clamp Fiber Bundle Model
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:307, Doctoral thesis, 2013)In this thesis I describe a soft clamped quasi static fiber bundle model for two dimensional interfacial fracture. The soft clamps distribute the stress amongst the fibers through elastic forces. The model display three ... -
Broad-band GVD Measurement of Specialty Fibers in mid-IR
(Chapter, 2012)We demonstrate a novel interferometeric setup for broad-band (>300nm) GVD measurements in short-length optical fibers in the mid-IR wavelength range using a superluminescent fiber source and investigate specialty fibers ... -
Broadband Dispersion Measurement of ZBLAN, Germanate and Silica Fibers in MidIR
(Journal article, 2012)We report the first ultra-broad band dispersion measurements in short-length ZBLAN, germanate and silica-based optical fibers in the near- and midIR wavelength ranges between 1.7 and 2.0 μm and from 2.3 to 2.45 μm, using ... -
Broadband infrared and THz transmitting silicon core optical fiber
(Peer reviewed; Journal article, 2020)Silicon waveguide structures are a viable alternative for the transmission of signals over a wide range of frequencies, and new fabrication methods are key to increased applications. In this work, THz transparency of ... -
Broadband method for group velocity dispersion measurements in the mid-infrared
(Journal article; Peer reviewed, 2011)A setup for broadband measurements of dispersion parameter in optical fibers based on the Mach–Zehnder interferometer is developed. Tm-doped fiber pumped at 1.61 μm was used as a source of broadband emission, that allowed ... -
Broadly tunable high-power continuous-wave Cr2+:CdS laser
(Chapter, 2011)We report spectroscopic and laser study of Cr2+:CdS laser - an attractive material for 3 µm room-temperature operation. 1.8 W of output power, continuously tunable over 1000 nm from 2240 nm to 3285 nm was demonstrated. -
Bruk av drama for undervisning av naturvitenskapens egenart: Utvikling og utprøving av et undervisningsopplegg om fysikkens historie
(Master thesis, 2010)Denne oppgaven tar for seg naturvitenskapens egenart som tema i programfaget fysikk i videregående skole. I læreplanen K06 har kunnskap om naturvitenskapens egenart blitt mer aktuelt, og temaet har fått økt oppmerksomhet ... -
Buckling initiation in layered hydrogels during transient swelling
(Journal article; Peer reviewed, 2019)Subjected to compressive stresses, soft polymers with stiffness gradients can display various buckling patterns. These compressive stresses can have different origins, like mechanical forces, temperature changes, or, for ... -
Budal's latching-controlled-buoy type wave-power plant
(Chapter, 2003) -
Building a framework for domain characterisation of K3Nb3B2O12 by electron diffraction and transmission electron microscopy
(Master thesis, 2022)Det ortorombiske, ferroelastiske oksidet K3Nb3B2O12 (KNBO) har blitt foreslått som et kandidatmateriale for domeneveggbasert teknologi på grunn av dets foreslåtte (anti)ferroelektriske egenskaper. Tidligere har det blitt ... -
Building and programming a weather station: Teachers' views on values and challenges in a comprehensive STEM project.
(Peer reviewed; Journal article, 2022)Background Integrated STEM approaches are acknowledged as important for making school subjects relevant and engaging for students and are reinforced with the current emphasis on computational thinking. Still, such approaches ... -
Bulk and interfacial thermodynamics of ammonia, water and their mixtures
(Journal article; Peer reviewed, 2024)Bulk and interfacial thermodynamics of ammonia, water and their mixtures -
Bulk fabrication and properties of solar grade silicon microwires
(Journal article; Peer reviewed, 2014)We demonstrate a substrate-free novel route for fabrication of solar grade silicon microwires for photovoltaic applications. The microwires are fabricated from low purity starting material via a bulk molten-core fibre ... -
Bulk substitution of F-terminations from Ti3C2Tx MXene by cation pillaring and gas hydrolysation
(Journal article, 2023)Applications of 2D MXenes are limited by the difficulty of controlling bulk termination groups after the initial HF etching step without forming surface oxides. Here, we report on gas hydrolysation using a continuous flow ... -
Burst Distribution by Asymptotic Expansion in the Equal Load Sharing Fiber Bundle Model
(Journal article; Peer reviewed, 2019)We derive an asymptotic series expansion for the burst size distribution in the equal load sharing fiber bundle model, a predominant model for breakdown in disordered media. Earlier calculations give expressions with correct ... -
Burst Dynamics, Upscaling and Dissipation of Slow Drainage in Porous Media
(Peer reviewed; Journal article, 2021)We present a theoretical and experimental investigation of drainage in porous media. The study is limited to stabilized fluid fronts at moderate injection rates, but it takes into account capillary, viscous, and gravitational ... -
Bølgjeenergiforskinga ved NTH: historisk oversyn 1973-85
(Others, 1985)