Blar i Fakultet for naturvitenskap (uspesifisert) på utgivelsesdato
Viser treff 21-40 av 85
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Stereoselective Transformations of Chiral Amines
(Dr. ingeniøravhandling, 0809-103X; 2002:8, Doctoral thesis, 2002)Enantiomerically pure amines and alcohols are particularly important synthons for the preparation of pharmaceuticals and agrochemicals. Notwithstanding the advances that have been achieved in asymmetric synthesis, resolution ... -
Concentrations and speciation of Cu, Zn, Cd, and Al in mine-polluted Norwegian rivers : influence of main water parameters and consequences to fish
(Doctoral thesis, 2002)This thesis presents concentration and speciation data for Cu, Zn, Cd, and Al in eight highland rivers and streams in the Røros area, central Norway. About 16 sampling campaigns were performed before, during and after ... -
Metabolism and function of β-1,3-glucan in marine diatoms
(Dr.ingeniøravhandling, 0809-103X; 2002:4, Doctoral thesis, 2002)β-1,3-Glucan (chrysolaminaran) is the principal storage polysaccharide in diatoms (Bacillariophyceae), the major primary producers in the sea. The glucan generally contributes a substantial fraction of the algal biomass, ... -
The evolution of small GTP binding proteins in cellular organisms. Studies of RAS GTPases in arabidopsis thaliana and the Ral GTPase from Drosophila melanogaster
(Doctoral thesis, 2002)Small GTP binding proteins function as molecular switches which cycles between GTP-bound ON and GDP-bound OFF states, and regulate a wide variety of cellular processes as biological timers. The first characterized member ... -
Characterisation and optimisation of the polymer electrolyte fuel cell
(Dr. ingeniøravhandling, 0809-103X; 2002:37, Doctoral thesis, 2002)This thesis presents work performed on five subjects of the polymer fuel cell: • A polymer fuel cell test-facility was optimised. A fuel cell housing was designed and built, enabling measurements of ocal fuel cell ... -
Evolution of Alpha Phase Alumina in Agglomerates upon Addition to Cryolitic Melts
(Dr. ingeniøravhandling, 0809-103X; 2002:50, Doctoral thesis, 2002)Rapid dissolution of alumina upon addition to the cryolitic melt is crucial for the modern Hall-Heroult process for aluminium production. The formation of slow - dissolving alumina agglomerates may be detrimental, and ... -
Investigation of the Chemistry of Liquid H2S Scavengers
(Dr.ingeniøravhandling, 0809-103X; 2002:70, Doctoral thesis, 2002)1,3,5-Tris(2-hydroxyethyl)-1,3,5-triazinane (1), in the industry often referred to as "Triazine", is a widely used liquid H2S scavenger. The goal of the work presented in this dissertation was to examine the chemistry of ... -
Steam explosions during granulation of Si-rich alloys.: Effect of Al- and Ca-additions
(Dr.ingeniøravhandling, 0809-103X; 2002:43, Doctoral thesis, 2002)Steam explosions are possible during granulation of Si and FeSi75. These explosions are a great hazard, and must be avoided. Norwegian ferroalloy producers have initiated a research program to learn more about such violent ... -
Colloidal Wood Resin: Analyses and Interactions
(Dr. ingeniøravhandling, 0809-103X; 2003:63, Doctoral thesis, 2003)This thesis presents studies of the interactions between suspended particles and dissolved and colloidal substances (DCS) in process water. The main focus has been to determine if colloidal wood resin is adsorbed by suspended ... -
Controllability analysis for process and control system design
(Dr. ingeniøravhandling, 0809-103X; 2003:76, Doctoral thesis, 2003)Controllability is the ability of a process to achieve acceptable performance, and in this thesis we use controllability analysis in the design of buffer tanks, feedforward controllers, and multivariable controllers such ... -
Work Hardening and Mechanical Anisotropy of Aluminium Sheets and Profiles
(Dr. ingeniøravhandling, 0809-103X; 2003:105, Doctoral thesis, 2003)The processing of aluminium alloys from casting to end product is associated with a large number of metallurgical phenomena. In order to further improve and optimise process routes and alloys, a thorough understanding of ... -
Degradation of polymeric and particulate organic carbon in biofilms
(Dr. ingeniøravhandling, 0809-103X; 2003:101, Doctoral thesis, 2003)Polymeric and particulate organic carbon (POM) are fundamental compounds in the global cycling of carbon, and constitute significant amounts of BOD in municipal wastewater. The main objective of this work is to study ... -
Lepton flavour violation in minimal supersymmetric extensions to the Standard model
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:22, Doctoral thesis, 2003) -
Olfactory coding and olfactory learning of plant odours in heliothine moths. An anatomical, physiological and behavioral study of three related species (Heliothis virescens, Helicoverpa armigera and Helicoverpa assulta)
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:83, Doctoral thesis, 2004) -
Periodate oxidised chitosans : structure and solution properties
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:126, Doctoral thesis, 2004)Chitosans are considered promising for a wide range of applications, and especially in the biomedical and pharmaceutical field numerous possible applications are being investigated. However, some of the properties of ... -
Equal channel angular pressing (ECAP) of AA6082 : mechanical properties, texture and microstructural development
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:129, Doctoral thesis, 2004)This thesis deals with the concept of ECAP applied to a commercial Al Mg-Si alloy (AA6082.50). A detailed analysis of the strains introduced by ECAP in a single passage through the die has been made, based on direct ... -
Application of high-resolution NMR spectroscopy in metabolic studies of the eye
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:164, Doctoral thesis, 2004)High-resolution NMR spectroscopy has, during the last two decades, had an increasing impact in biological and biochemical research. Rapid advances have led to improvements in sensitivity and dispersion of the spectra and ... -
Nuclear Magnetic Resonance spectroscopy of marine microalgae: Metabolic profiling and species discrimination from High-Resolution Magic Angle Spinning NMR analysis of whole-cell samples
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:13, Doctoral thesis, 2005)Based on what is said about the background and structure, this thesis presents a discussion of the use of NMR spectroscopy as a tool for species discrimination and metabolic profiling of microalgae. The results of various ... -
Thermal Reactivity and Structure of Carbonized Binder Pitches
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:83, Doctoral thesis, 2005)Pitches are used on a large scale in the manufacture of carbon anodes for the production of primary aluminium. The role of the pitch is to act as a binder between the petroleum coke grains. The structure of the carbonized ... -
Motor control of the upper trapezius
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:80, Doctoral thesis, 2005)Background The main objective of this thesis was to establish new insight into the motor control of low-threshold motor units in the trapezius muscle. Special attention was given to motor unit recruitment threshold related ...