Fakultet for naturvitenskap (uspesifisert): Nye registreringer
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Development and modification of glass membranes for aggreessive gas separations
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:24, Doctoral thesis, 2005)Chlorine as a chemical is widespread in industry and found in a great variety of processes ranging from water purification to plastic production. In this thesis, a magnesium production factory was chosen as an example ... -
Størkning av 75\% ferrosilisium : forløp, struktur og styrke
(Dr.ingeniøravhandling, 0809-103X; 1988:53, Doctoral thesis, 1988)Målsettingen med oppgaven har vært å komme frem til praktiske størkningsmodeller som beskriver størkning av 75% ferrosilisium utstøpt under forskjellige betingelser samt å beskrive de resulterende egenskaper hos ... -
Entanglement and its applications in systems with many degrees of freedom
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:209, Doctoral thesis, 2006)Entanglement are the non-local correlations permitted by quantum theory, believed to play a fundamental role in a quantum computer. We have investigated these correlations in a number of theoretical models for condensed ... -
Rheology and Reactivity of Cementitious Binders with Plasticizers
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:189, Doctoral thesis, 2005)The rheological behaviour of cementitious pastes has been studied by various means. Six different cements have been studied in main parts of the work and all of them have been characterized according to the Rietveld method ... -
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 ... -
Minimum Energy Requirements in Complex Distillation Arrangements
(Dr. ingeniøravhandling, 0809-103X; 2001:43, Doctoral thesis, 2001)Distillation is the most widely used industrial separation technology and distillation units are responsible for a significant part of the total heat consumption in the world’s process industry. In this work we focus on ... -
Sorption-enhanced steam methane reforming in fluidized bed reactors
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:116, Doctoral thesis, 2006)Hydrogen is considered to be an important potential energy carrier; however, its advantages are unlikely to be realized unless efficient means can be found to produce it without generation of CO2. Sorption-enhanced steam ... -
Coevolutionary adaptations in avian brood parasites and their hosts
(Doctoral thesis, 2001)Dette prosjektet har satt søkelyset på to problemstillinger knyttet til samevolusjonen mellom parasitt og vert; 1) utvikling av vertstilpasninger som mottrekk mot tilpasninger hos parasitten, med spesiell fokus på ... -
Lepton flavour violation in minimal supersymmetric extensions to the Standard model
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:22, Doctoral thesis, 2003) -
Electrochemical behaviour of sulphur containing species in molten salts
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:254, Doctoral thesis, 2007)The behaviour of sulphur containing species has been investigated during the last few decades in various molten chloride and fluoride electrolytes but their effect on the performance of the cells producing aluminium still ... -
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 ... -
Electrocatalysts for the oxygen evolution electrode in water electrolysers using proton exchange membranes : synthesis and characterisation
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:96, Doctoral thesis, 2005)Electrocatalysts based on IrO2 have been synthesised and characterised using a wide range of techniques. These oxide materials were primarily developed as oxygen evolution electrocatalysts for proton exchange membrane (PEM) ... -
Noise and dissipation in magnetoelectronic nanostructures
(Doctoral Theses at NTNU, 1503-8181; 2008:112, Doctoral thesis, 2008)This thesis adresses electric and magnetic noise and dissipation in magnetoelectronic nanostructures. Charge and spin current fluctuations are studied in various nanosized metallic structures consisting of both ferromagnetic ... -
Life history strategies, mate choice, and parental investment among Norwegians over a 300-year period
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:54, Doctoral thesis, 2005)In this thesis, seven papers concerning life history, mate choice and parental investment strategies are presented. Data was compiled from old church books from two parishes in Central Norway from 1700-1900, Soknedal and ... -
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 ... -
Degradation- and Passage Kinetics of Concentrate Particles and Solubles in the Rumen
(Dr.ingeniøravhandling, 0809-103X; 2001:107, Doctoral thesis, 2001)This thesis deals with three actual issues of ruminant degradation and escape of dietary components: One of the main emphasis has been on how particle size distribution of concentrated feed affects the degradation and ... -
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 ...