Browsing Fakultet for naturvitenskap (uspesifisert) by Title
Now showing items 72-86 of 86
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Sea Ice Studies in the Northern Sea Route by use of Synthetic Aperture Radar
(Dr. ingeniøravhandling, 0809-103X; 2002:22, Doctoral thesis, 2000)The main objective of this thesis is to contribute to the understanding of sea ice processes in the Northern Sea Route, mainly with use of remote sensing data from Synthetic Aperture Radar (SAR). Multivariate data analysis ... -
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 ... -
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 ... -
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 ... -
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 ... -
Superchilling of muscle food: Storage stability and quality aspects of salmon (Salmo salar), cod (Gadus morhua) and pork
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:151, Doctoral thesis, 2008)Superchilling is a method that can be used to prolong the shelf life of foods by partial freezing. Knowledge of the effects of this method on both the shelf life and quality of foods is important in order to find optimal ... -
Synthesis and Functionalization of 3-Nitropyridines
(Dr. ingeniøravhandling, 0809-103X; 2001:100, Doctoral thesis, 2001)The goals for the project “Synthesis and Functionaliszation of 3-Nitropyridines” were first to further optimize the procedures for nitration of 3-nitropyridines, and then investigate some aspects of the mechanism. Further ... -
The ecology and behaviour of the Masai Ostrich (Struthio camelus massaicus) in the Serengeti Ecosystem, Tanzania
(Doctoral Theses at NTNU, 1503-8181; 2008:81, Doctoral thesis, 2008) -
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 ... -
The function of scent marking in beaver (Castor fiber) territorial defence
(Doctoral thesis, 2002)This thesis examines how scent marking in Eurasian beaver (Castor fiber) functions in territorial defence. Beavers usually deposit scent (castoreum and/or anal gland secretion (AGS)) onto small piles of mud and debris, and ... -
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 ... -
Ultrafiltration of Partially Degraded Starch Solution
(Dr.ingeniøravhandling, 0809-103X; 2002:87, Doctoral thesis, 2002)Desizing wastewater is largely responsible for the chemical oxygen demand (COD) load in the textile industry wastewater. A larger portion of COD comes from degraded starch in desizing wastewater. Removing the starch from ... -
Understanding Selectivity in CO2 Hydrogenation to Methanol for MoP Nanoparticle Catalysts Using In Situ Techniques
(Peer reviewed; Journal article, 2021)Molybdenum phosphide (MoP) catalyzes the hydrogenation of CO, CO2 , and their mixtures to methanol, and it is investigated as a high-activity catalyst that overcomes deactivation issues (e.g., formate poisoning) faced by ... -
Wettability of Silicon with Refractory Materials: A Review
(Research report, 2008)The wettability of ceramics by liquid metals is a key fac¬tor in many fields of high temperature materials science and engineering. The wetting behavior of liquid-silicon/refractory-materials system is especially important ... -
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 ...