Browsing Fakultet for naturvitenskap (NV) by Title
Now showing items 12412-12431 of 12540
-
Wave scattering and transmission from penetrable self-affine surfaces
(Master thesis, 2009) -
Wave scattering theory applied to inversion and design
(Doctoral theses at NTNU;2018:310, Doctoral thesis, 2018)The scattering of waves from objects can be used as a tool for both characterization and manipulation. The way waves interact and scatter from objects can give us information about their structure and composition. Additionally, ... -
Wavelength and orientation dependent capture of light by diatom frustule nanostructures
(Peer reviewed; Journal article, 2015)The ecological success of diatoms is emphasized by regular blooms of many different species in all aquatic systems, but the reason behind their success is not fully understood. A special feature of the diatom cell is ... -
Wavelength conversion and supercontinuum generation in silicon optical fibers
(Journal article, 2018)This paper describes the state of the art in wavelength conversion and supercontinuum generation using glass-clad silicon core optical fibers. Such semiconductor fibers have enjoyed considerable attention due to their ... -
Waves Propagating on Fluids with Piecewise Constant Vorticity
(Master thesis, 2015)The purpose of this study was to find the dispersion relation for waves on an arbitrary current velocity profile approximated by N linear layers. Using a Stokes expansion to first order in the steepness parameter ka the ... -
Wax-Inhibitor Interactions Studied by Isothermal Titration Calorimetry and Effect of Wax Inhibitor on Wax Crystallization
(Journal article; Peer reviewed, 2017)Isothermal titration calorimetry is applied to investigate the interactions of polymeric pour-point depressants (PPDs) or asphaltenes with macrocrystalline wax in a model oil system. This represents a novel approach to ... -
“We learn it [mathematics] at school so one thinks that one will use it …”: Learners’ beliefs about relevance and importance of learning mathematics.
(Journal article; Peer reviewed, 2023)Denne artikkelen viser at når skoleledere og lærere samhandler i et regionalt utviklingsprosjekt som forutsetter bruk av eksterne kunnskapsressurser som kartleggingsdata og kompetansepakker, forholder de seg til ... -
Wear of carbon cathode lining in aluminium electrolysis cell: The effect of rotation speed in laboratory test cell
(Master thesis, 2014)The aluminium smelters are continually trying to increase their production either by designing high amperage cells or increasing the amperage on available cell designs. The service life for aluminium reduction cells is ... -
Wear of Carbon Refractory Materials in Silicon Furnaces
(Master thesis, 2016)The goal of this thesis was to investigate the internal morphology of different types of lining prepared with different installation techniques and different binders, and to see how the internal morphology affects the ... -
Weather affects temporal niche partitioning between moose and livestock
(Journal article; Peer reviewed, 2017)Co-existing species at the same trophic level often segregate with respect to diet, habitat use, or spatial distribution, reducing their direct competition for resources. However, temporal patterns in species-specific ... -
Weathering Plastics as a Planetary Boundary Threat: Exposure, Fate, and Hazards
(Peer reviewed; Journal article, 2021)We described in 2017 how weathering plastic litter in the marine environment fulfils two of three criteria to impose a planetary boundary threat related to “chemical pollution and the release of novel entities”: (1) ... -
Weddell-Scotia Confluence Effect on the Iron Distribution in Waters Surrounding the South Shetland (Antarctic Peninsula) and South Orkney (Scotia Sea) Islands During the Austral Summer in 2007 and 2008
(Journal article; Peer reviewed, 2019)An oceanographic survey around the South Shetland Islands (SSI) and the South Orkney Islands (SOI) was conducted during January 2007 and February 2008, respectively, as part of the United States Antarctic Marine Living ... -
Weed to Feed: From Seaweed to Sustainable Microbial Feedstock
(Master thesis, 2023)Nye og mer bærekraftige løsninger kreves i industriell sammenheng for å konservere ressurser som verdensbefolkningen allerede er svært avhengig av, som for eksempel dyrkbar jord. I løpet av dette prosjektet har tare blitt ... -
Weighting of Celestial and Terrestrial Cues in the Monarch Butterfly Central Complex
(Peer reviewed; Journal article, 2022)Monarch butterflies rely on external cues for orientation during their annual long-distance migration from Northern US and Canada to Central Mexico. These external cues can be celestial cues, such as the sun or polarized ... -
Weld thermal simulation of API 5CT L80 grade steel
(Peer reviewed; Journal article, 2021)The microstructure and mechanical properties of an API 5CT L80 casing grade steel (0.24C 0,4Si 1.4Mn CrNiCu) have been studied after performing weld thermal simulations (with and without subsequent tempering) applying a ... -
Welding and Mechanical Testing of Aluminium Alloys for use in Constructions
(Master thesis, 2023)Målet med denne masteroppgaven er å produsere Al-Si-Mg legeringer til bruk i store konstruksjoner, samtidig som styrken ikke skal bli redusert i noen særlig grad som følge av sveising. Metallplater har gått gjennom ulike ... -
Wet Chemical Preparation and Characterisation of Nanocrystalline and BulkYttrium Manganite
(Master thesis, 2009) -
Wet Chemical Synthesis of Graphene for Battery Applications
(Master thesis, 2014)In this thesis, an improved Hummers method is used to produce graphene oxide, while thermal treatment has been used as the reduction process to form reduced graphene oxide. This modified version of Hummers method differs ... -
Wet Chemical Synthesis of Materials for Intermediate Band Solar Cells
(Master thesis, 2011)The economical feasibility of commercial, single-junction solar cells is limited by high costs and limited efficiencies. New solar cell concepts and materials are sought to decrease the production costs and increase the ...