Browsing Institutt for kjemi by Issue Date
Now showing items 1-20 of 817
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Introducerea determinărilor de trihalometani în practica urmaririi eficienţei staţiilor de tratare
(Journal article, 1988)Determinarea clorhidrocarburilor, în special a trihalometanilor în apa potabilă tratată prin clorurare a fost îmbunătățită prin dezvoltarea unui metode gaz cromatografic. Metoda include o etapă de extracție cu solvent, ... -
Kinetics of reactions between silica and carbon
(Doktor ingeniøravhandling;1990:16, Doctoral thesis, 1990) -
Silicon for the direct process to methylchlorosilanes
(Doktor ingeniøravhandling;1992:67, Doctoral thesis, 1992)The available literature in the field of the direct process to methylchlorosilanes has been reviewed and commented. An apparatus and operation procedure have been developed to study the effect of structure on the direct ... -
Heterogeneous ceramic interfaces in solid oxide fuel cells and dense oxygen permeable membranes
(Dr. ingeniøravhandling, 0809-103X; 2000:109, Doctoral thesis, 2000)Solid oxide fuel cells and oxygen permeable membranes have received considerable attention during the last decade due to the increasing demand for electrical energy and easily transportable fuels combined with the requirement ... -
Structure and solubility of niobium and tantalum complexes in molten alkali fluorides /
(Dr. ingeniøravhandling; 2000:113, Doctoral thesis, 2000) -
Preparation, microstructure and mechanical properties of LaCoO₃ and SrFeO₃ based ceramics
(Dr. ingeniøravhandling, 0809-103X; 2000:107, Doctoral thesis, 2000) -
Synthesis and Fungicidal Activity of 2-Imino-3-(4-arylthiazol-2-yl)-thiazolidin-4-ones and Their 5-Arylidene Derivatives
(Journal article; Peer reviewed, 2000)Five derivatives of 2-imino-3-(4-arylthiazol-2-yl)-thiazolidin-4-ones and a series of their 5-arylidene derivatives have been synthesized and tested for antifungal activity against seven agricultural fungi. 2-Imino-3-( ... -
Viscosity, structure and glass formationin the AlCl3-ZnCl2 system
(Dr. ingeniøravhandling, 0809-103X; 2001:36, Doctoral thesis, 2001)Thermodynamic, viscous and structural properties of melts and glasses in the AlCl3-ZnCl2 system have been investigated. The two pure components are fundamentally different in the molten state. Both metal atoms are four ... -
Preparation and Transport Properties of SrFeO. Based Materials with controlled Microstructure
(Dr. ingeniøravhandling, 0809-103X; 2001:6, Doctoral thesis, 2001)This work consists of mainly two parts. The first part deals with the sintering behaviour and the microstructural stability of SrFe1-xCrxO3-δ, and the second with transport properties of membranes of the same compositions. ... -
Regioselectivity in the thermal rearrangement of unsymmetrical 4-methyl-4H-1,2,4-triazoles to 1-methyl-1H-1,2,4-triazoles
(Journal article; Peer reviewed, 2001)The rearrangement of 4-methyl-3,5-diaryl-4H-1,2,4-triazoles to the corresponding 1-methyl-3,5-diaryl-1H-1,2,4-triazoles showed regioselectivity comparable to that observed for the alkylation of 3,5-diaryl-1H-1,2,4-triazoles. ... -
Reactivity of Anode Raw Materials and Anodes for Production of Aluminium
(Dr. ingeniøravhandling, 0809-103X; 2001:117, Doctoral thesis, 2002)In the Hall-Héroult process for primary production of aluminium, a considerable amount of anode carbon is lost through unwanted gasification in air and CO2. The carbon gasification reactions are catalyzed by a number of ... -
Energy efficient operation of distillation columns and a reactor applying irreversible thermodynamics
(Dr. ingeniøravhandling, 0809-103X; 2002:41, Doctoral thesis, 2002)In this thesis the entropy production rate of diabatic distillation columns and a SO2 converter were minimised. This is the same as maximising the second law energy efficiency of the systems. The development of chemical ... -
Biological reductions and esterifications for the production of enantiopure secondary alcohols : chemo-enzymatic synthesis of chiral building blocks with sulphur-containing rings
(Doktoravhandlinger ved NTNU, 1503-8181, Doctoral thesis, 2003)Both enantiomers of 1-(1,3-dithian-2-yl)-2-propanol ( 5 ) 1-(1,3-dithiolan-2-yl)-2- propanol (6), and halogenated derivatives of 5 was obtained by microbial reductions and lipase catalyzed esterifications. (2S)-1-(1,3-di ... -
Rational design of protein inhibitors using molecular modelling and multivariate analysis
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:59, Doctoral thesis, 2004)Cancer cells utilise signalling cascades involving protein kinases for their growth and survival. Hence, design of protein inhibitors that block the function of these signalling proteins is interesting for the development ... -
Biochemical impacts of transition metals in the king bolete (Boletus edulis)
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:166, Doctoral thesis, 2004)The present thesis investigates the reciprocal relationship between metals and wild-growing macromycetes. An inter-diciplinary approach was needed in order to reveal, on the molecular level, how these organisms respond to, ... -
Chemical and Spectroscopic Studies of Carotenoids and Related Compounds
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:93, Doctoral thesis, 2004)Structure elucidation of charge delocalised carotenoid mono- and dications by NMR and VIS/NIR spectroscopy. Studies of the nucleophilic reactions of these cations. Studies of the β,β-carotene-iodine complex. Isolation and ... -
Minimization of entropy production in separate and connected process units
(Dr. ingeniøravhandling, 0809-103X; 2004:111, Doctoral thesis, 2004) -
Nitropyridines in Organic Synthesis. 2.5-Disubstituted Pyridine Compounds
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:34, Doctoral thesis, 2004)The goal of this project was to explore how 5-nitropyridine-2-sulfonic acid (18) and its potassium salt (18a) could be utilised as starting materials for 2,5- substituted pyridines. Compounds 18/18a were prepared by oxidation ... -
Effect of surfactant structure on properties of oil/water interfaces: A coarse-grained molecular simulation study.
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:142, Doctoral thesis, 2004)The elastic properties of oil/water/surfactant interfaces play an important role in the phase behaviour of microemulsions and for the stability of macroemulsions. The aim of this thesis is to obtain an understanding of ... -
Synthesis of enantiopure building blocks for biologically active compounds by enzyme catalysis. Optimizing reaction conditions for increased enantioselectivity and activity
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:50, Doctoral thesis, 2004)Efficient methods for synthesis of enantiomerically pure enantiomers of a series of secondary alcohols and butanoates have been performed by kinetic resolution of the racemic alcohols and esters catalyzed by lipase B from ...