Blar i Department of Mathematics and Natural Sciences på utgivelsesdato
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Covariate order tests for covariate effect
(Journal article; Peer reviewed, 2002)A new approach for constructing tests for association between a random right censored life time variable and a covariate is proposed. The basic idea is to first arrange the observations in increasing order of the covariate ... -
Value of information : reliability of 3D reflection seismology in exploration
(Masteroppgave/UIS-TN-IMN/2007, Master thesis, 2007)Decision makers who face uncertain prospects often gather information with the intention of reducing uncertainty. If we can reduce uncertainty about future outcomes, then we can make choices that give us a better chance ... -
Vurdering av avløpssituasjonen og anbefalinger for Toliara, Madagaskar
(Masteroppgave/UIS-TN-IMN/2008, Master thesis, 2008)Toliara er en by sør på Madagaskar. Områdene rundt byen har lange flotte strender, et spennende korallrev og en unik naturtype. 20 % av befolkningen i Toliara har tiltang til hygieniske sanitærinstallasjoner, mens en ... -
Ricci nilsoliton black holes
(Journal article; Peer reviewed, 2008)We follow a constructive approach and find higher-dimensional black holes with Ricci nilsoliton horizons. The spacetimes are solutions to the Einstein equation with a negative cosmological constant and generalise therefore, ... -
Sorbose and the Hyphal branching rhythm in neurospora crassa : the influence of sorbose on growth, morphology, period and temperature compensation
(Masteroppgave/UIS-TN-IMN/2008, Master thesis, 2008)The glucose analogue sorbose has an interesting effect on the growth of the fungus Neurospora crassa. On sorbose Neurospora crassa wild type (wt) grows slower and with a marked difference in morphology. The appearance ... -
Experimental and computational studies of turbulent mass transfer in a mixing channel
(Journal article; Peer reviewed, 2008)Experiments are carried out for passive mixing in order to obtain local mean and turbulent velocities and concentrations. The mixing takes place in a square channel with two inlets separated by a block. A combined PIV/PLIF ... -
Korrosjonsegenskaper til clad-rør
(Masteroppgave/UIS-TN-IMN/2008, Master thesis, 2008)Formålet med denne oppgaven er å undersøke de indre korrosjonsegenskapene til tre forskjellige clad-rør med rundsveis (girth weld). Clad-rørene var sveiset sammen med sveisematerialer av henholdsvis Alloy 625, 309Mo/Alloy ... -
Katodisk beskyttelse av umbilicals
(Masteroppgave/UIS-TN-IMN/2008, Master thesis, 2008)Ulike sider ved bruk av sinkbånd til korrosjonsbeskyttelse av karbonstål umbilical er evaluert. Det er utført litteraturstudie ved gjennomgang av tidligere rapporter, sammenligning av standarder og artikkelsøk. Langtidsforsøk ... -
Semi-algebraic optimization of temperature compensation in a general switch-type negative feedback model of circadian clocks
(Journal article; Peer reviewed, 2008)Temperature compensation is an essential property of circadian oscillators which enables them to act as physiological clocks. We have analyzed the temperature compensating behavior of a generalized transcriptional–translational ... -
Photochemical synthesis of chrysenols
(Peer reviewed; Journal article, 2008-08)Chrysenols are formed together with other metabolites when chrysene is metabolized in living organisms. The principal metabolites are needed as pure compounds for reference materials and standards to study various aspects ... -
A proteomic study for serum biomarkers for variations of two genotypes of Anaplasma phagocytophilum in infected lambs
(Masteroppgave/UIS-TN-IMN/2008;, Master thesis, 2008-12)The work in this thesis was Collaboration between the Norwegian School of Veterinary Science (NSVS), IRIS (the International Research Institute of Stavanger), and the University of Stavanger. NSVS innoculated two genotypes ... -
On computational linear semi-infinite programming
(Peer reviewed; Journal article, 2008-12) -
Characterization of ranomafana lake water quality - antsirabe madagascar
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009)Analyses of water quality parameters in Ranomafana Lake showed that the lake is hypereutrophic. It receives untreated wastewater from Antsirabe municipality by three main inlets: the North West inlet, the North inlet and ... -
Temperature dependence of naphthalene biodegradation in seawater (0.5-15ºC)
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009)The polar areas are very vulnerable to exposure to contaminants. An oil spill in polar areas could be a disaster to large areas. The recovery from contamination takes longer time in arctic areas than in more temperate areas ... -
Analysis of by-products from XLPE Production for cable insulation
(Masteroppgave/UIS-TN-IMN/2009;, Master thesis, 2009)Polyethylene is used in the manufacturing of cables. Because of the amount of high voltages which is transmitted through the cables at elevated temperatures, crosslinking of PE is necessary for stabilizing the insulation. ... -
Variable load related problems in projecting wastewater treatment plant in Bykle Commune at Hovden
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009)This paper is based upon the project of renewing of Waste Water Treatment plant in Bykle Commune in Aust Agder, Norway. It has been decided that it is necessary to build a new plant to meet the load as well as requirements ... -
Characterization of the Lil3 protein during deetiolation of Hordeum vulgare
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009)Angiosperm plants growing in darkness are free of chlorophyll and develop etioplasts instead of chloroplasts the characteristic organelles of green plants. Upon illumination, chlorophyll and the chlorophyll binding proteins ... -
Effect of salinity on biological treatment of wastewater from oil industry
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009)High salinity may affect biological wastewater negative by reducing the growth rate of microorganisms. Wastewater from oil industry often contains high salinity which could be problematic to treat. This thesis is to evaluate ... -
Anaerob behandling av avfallsvann med innhold av etylenglykoler
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009) -
A multiple-source air quality control model achieving a standard, defined by a vector-valued function
(Conference object, 2009-07)Earlier papers by Gustafson, Kortanek, Sweigart and others describe models for controlling air pollution, consisting of chemically inert pollutants like sulphur dioxide. It was assumed that the concentration contributions ...