Browsing Fakultet for naturvitenskap (NV) by Title
Now showing items 7844-7863 of 12453
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Nucleation and Early Growth of Multicrystalline Solar Cell Silicon
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:355, Doctoral thesis, 2012)As the production of solar cell silicon evolves and new concepts are introduced, the need for a more complete understanding of the basic principles of silicon solidification is also increasing. Nucleation has previously ... -
Nucleation and Growth of Brushite in the Presence of Alginate
(Journal article, 2015)Biomineral formation in vivo is a complex process regulated by functional molecules. Highlighting the mechanisms underlying biomineralization is necessary for a better understanding of in vivo processes and for enhanced ... -
Nucleation and Growth of High Performance Multicrystalline Silicon (HPMC-Si) in Si3N4 and SiC Coated Crucibles
(Master thesis, 2019)The silicon material for photovoltaic (PV) industry demands high quality. It is known that dislocation clusters are among the foremost limiting effects on the minority carrier lifetime, and thus the PV efficiency. The ... -
Nucleation and growth of multicrystalline silicon
(Doctoral theses at NTNU;2018:42, Doctoral thesis, 2018)This work has focused on the nucleation process of multicrystalline silicon (mc-Si) for photovoltaic (PV) applications during solidification in α-Si3N4 coated crucibles, the typical crucible coating used commercially. ... -
Nucleation kinetics and polymorphism of calcium carbonate particles in natural gas production
(Master thesis, 2012)Precipitation of calcium carbonate in pipes and process equipment is a widespread problem in natural gas production as we know it today. Studies of calcium carbonate systems are crucial to prevent this problem. When the ... -
Nucleation of Primary Mg2Si in Al-Mg-Si Alloys
(Master thesis, 2014)Al-Mg2Si Metal Matrix Composites have the potential to replace the frequently used near- and hyper-eutectic Al-Si alloys. In the as-cast condition, these alloys can contain coarse dendritic primary Mg2Si particles which ... -
Nucleation of SiO2-CaO-Al2O3 Slag in Oxidative Ladle Refining of Metallurgical Grade Silicon
(Peer reviewed; Journal article, 2021)Oxidative ladle refining (OLR) is the most used refining method in industrial production of metallurgical grade silicon. OLR is performed by purging the liquid alloy with oxygen-enhanced air at 1823 K to 1873 K, reacting ... -
Nucleoside Analogues Are Potent Inducers of Pol V-mediated Mutagenesis
(Peer reviewed; Journal article, 2021)Drugs targeting DNA and RNA in mammalian cells or viruses can also affect bacteria present in the host and thereby induce the bacterial SOS system. This has the potential to increase mutagenesis and the development of ... -
Nucleoside Analogues Are Potent Inducers of Pol V-mediated Mutagenesis
(Journal article; Peer reviewed, 2021)Drugs targeting DNA and RNA in mammalian cells or viruses can also affect bacteria present in the host and thereby induce the bacterial SOS system. This has the potential to increase mutagenesis and the development of ... -
Number Theoretic Properties of Elliptic Curves
(Master thesis, 2014)In this thesis we will look at some of the theory of elliptic curves. We will use this for some number theoretical examples, use methods to determine the number of points on an elliptic curve over finite fields, and also ... -
Numerical analysis of boundary conditions in a Lagrangian particle model for vertical mixing, transport and surfacing of buoyant particles in the water column
(Journal article; Peer reviewed, 2019)Lagrangian particle models are used for many applications in the ocean sciences, including transport modelling of oil spills, fish eggs and larvae, plastics, and sediment particles. In the context of oil spill modelling, ... -
Numerical Implementation and Evaluation of a Set of Population Balance Breakage Closures
(Master thesis, 2016)The population balance equation (PBE) can be used to model multiphase processes, where one or more dispersed phases are distributed in a continuous medium. In such systems, the interfacial area is an important quantity, ... -
Numerical integrators for Lagrangian oceanography
(Peer reviewed; Journal article, 2020)A common task in Lagrangian oceanography is to calculate a large number of drifter trajectories from a velocity field pre-calculated with an ocean model. Mathematically, this is simply numerical integration of an Ordinary ... -
Numerical Investigation of the Pressure Drop Characteristics of Isothermal Ice Slurry Flow under Variable Ice Particle Diameter
(Peer reviewed; Journal article, 2020)Ice slurry is an advanced secondary refrigerant that has been attracting considerable attention for the past decade due to the growing concerns regarding energy shortage and environmental protection. To stimulate the ... -
Numerical Investigations on Nanobubble Stability
(Master thesis, 2015)This thesis discusses the stability and lifetime of bulk and surface nanobubbles. Two numerical models are presented which have been developed in order to investigate aspects of the dynamic equilibrium mechanism using ... -
Numerical methods for solving complex heat exchanger models in transient operation
(Master thesis, 2014)Heat exchangers are important in many industrial systems. In order to maximizeheat transfer while fulfilling requirements to size and weight, it is crucial to havegood numerical tools available. Sintef has developed a ... -
Numerical Modeling of Hydrogen Fluoride Adsorption
(Master thesis, 2021)Produksjonsmengden av aluminium øker for hvert år. For å møte etterspørselen, øker aluminiumsverk spenningen i elektrolysecellene for å øke produksjonen, men også den økonomiske gevinsten. En bi-effekt av dette er økt ... -
Numerical modelling and photo-electrochemical characterization of dye sensitized solar cells
(Master thesis, 2017)Current-potential characteristics were recorded, and intensity modulated photocurrent spectroscopy (IMPS), intensity modulated photovoltage spectroscopy (IMVS), and electrochemical impedance spectroscopy (EIS) was performed ...