Blar i Department of Mathematics and Natural Sciences på utgivelsesdato
Viser treff 21-40 av 312
-
Revision of the Oriental species of the Bengalia peuhi speciesgroup (Diptera, Calliphoridae)
(Peer reviewed; Book; Journal article, 2009-10-08)The Oriental species of the Bengalia peuhi species-group are revised and their male genitalia illustrated by means of digital colour photography. A key to males is presented, complete synonymies are given for all the species ... -
Validation of a capillary pressure correlation for dynamic wettability alteration
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009-11-20) -
DREAM (Dose-related Risk and Exposure Assessment Model) as a tool to predict biomarker responses in offshore produced water discharge situations
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009-11-25)Every year, approximately 200 million tones of produced water are discharged into the sea by the Norwegian oil industry. Although rapidly diluted, due to its large amount and possible long term (chronic) effects, the ... -
Note on the invariant classification of vacuum type D spacetimes
(Journal article; Peer reviewed, 2009-12)We illustrate the fact that the class of vacuum type D spacetimes which are I-non-degenerate are invariantly classified by their scalar polynomial curvature invariants. -
Evaluation and testing of different pre-treatment procedures for making sludge liquor suitable as a nutrient source for growth of microalgae
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)The objective for this thesis is to find a proper pre-treatment for sludge liquor for the purpose of growing microalgae in the treated solution. Sludge liquor (also called reject water) is the reject/centrate after the ... -
POP induced oxidative stress and its effect on fatty acid composition in Atlantic Cod (Gadus morhua) mitochondria
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)The North Sea is becoming heavily contaminated by organic pollutants. The dominating sources of contamination are land-based releases, transport and offshore oil and gas industry. This creates a complex spectrum of different ... -
Model based optimization of biogas production at SNJ plant
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)The main purpose of this thesis is the acquisition of knowledge and familiarization with the SNJ biogas plant and effects of codigestion. Plant operation and performance was monitored in order to understand and evaluate ... -
Improving BOD removal at SNJ wastewater treatment plant by biological treatment at low temperature
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)Nowadays, the use of microorganisms in wastewater handling known as ‘biological treatment’ becomes more and more popular. Better results can be achieved with this process. SNJ, one of the biggest chemical wastewater ... -
Chromatography of metabolites in plasma and urine following oral administration of anthocyanin rich capsules
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)Anthocyanins (ACs) are powerful antioxidants widely distributed in fruits and vegetables. Several international studies suggest that anthocyanins have positive effects on the health, including various chronic diseases. ... -
Alvamaja chlorometallica gen. n., sp. n. from Europe : the first metallic Rhinophoridae (Diptera)
(Journal article; Peer reviewed, 2010)Alvamaja chlorometallica gen. n., sp. n. is described from the southern part of Serbia. It has a perplexing combination of characters for an oestroid fly: green metallic body colour with silvery pollinosity; absence of ... -
Curvature operators and scalar curvature invariants
(Journal article; Peer reviewed, 2010)We continue the study of the question of when a pseudo-Riemannain manifold can be locally characterised by its scalar polynomial curvature invariants (constructed from the Riemann tensor and its covariant deriva- tives). ... -
CO2 and H2S corrosion in oil pipelines
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)This study has been conducted to find the corrosion behavior and corrosion rates of carbon steel in the presence of CO2 and H2S at various pH levels using classical electrochemical techniques. It was found that in a ... -
Progress in the total synthesis of hazardiadione
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010) -
Recovery of oil spills by dispersants in marine arctic regions
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)The initial appearance of dispersants was 1960s and 1970s; oil spill dispersants have been the topic of significant research, testing, and debate. In spite of published reports about dispersant toxicity and effectiveness ... -
Monitoring sediment bound cadmium in sømme bay, Hafrsfjord, Norway
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)Cadmium is considered to be a very toxic heavy metal for organisms at all levels of organisation. Therefore, careful analysis is made in Sømme bay, Hafrsfjord as this area is a very important marine wetland habitat, ... -
Improving BOD removal at SNJ wastewater treatment plant by biological treatment
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)SNJ uses chemical precipitation method to treat domestic wastewater. With regard to organic removal requirement; chemical treatment alone does not seem to be sufficient at SNJ/IVAR wastewater plant. This thesis is to assess ... -
Isoterm varmebehandling Listeria innocua i kappilærrør
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)Utgangspunktet for denne masteroppgaven var å skaffe kunnskap om Listeria monocytogenes-surrogaten Listeria innocua, og dens varmeinnaktiveringskinetikk med hensyn på kvalitet og matsikkerhet i pasteuriserte fiskeprodukter. ... -
Higher dimensional bivectors and classification of the Weyl operator
(Journal article; Peer reviewed, 2010)We develop the bivector formalism in higher dimensional Lorentzian spacetimes. We define the Weyl bivector operator in a manner consis- tent with its boost-weight decomposition. We then algebraically classify the Weyl ... -
Produced water challenges : influence of production chemicals on flocculation
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)Produced water is the largest volume waste from offshore oil and gas exploration and production processes. Water in varying quantities is always produced along with oil, and has to be separated from the oil. The quantity ... -
Evaluation of DAPI direct count, computer assisted and plate count methods
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)The feasibility of using automatic counting of bacteria stained with highly specific and sensitive fluorescing DNA stain DAPI, 4',6-diamidino-2-phenylindole, and direct manual counting to enumerate both pure culture of ...