Blar i Department of Mathematics and Natural Sciences på tittel
Viser treff 89-108 av 312
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Environmental harm assessment of a wastewater discharge from Hammerfest LNG: A study with biomarkers in mussels (Mytilus sp.) and Atlantic cod (Gadus morhua)
(Journal article; Peer reviewed, 2013-04)Biologically treated wastewater (WW) from the Hammerfest LNG (liquefied natural gas) plant is discharged to the sea. A study using biomarkers in mussels and Atlantic cod was performed to examine whether this discharge meets ... -
Environmental impacts of produced water and drilling waste discharges from the Norwegian offshore petroleum industry
(Journal article; Peer reviewed, 2013-09)Operational discharges of produced water and drill cuttings from offshore oil and gas platforms are a continuous source of contaminants to continental shelf ecosystems. This paper reviews recent research on the biological ... -
Epidemiology and classification of gastroenteropancreatic neuroendocrine neoplasms using current coding criteria
(Journal article; Peer reviewed, 2015-09)Background: The lack of uniform criteria for coding of gastroenteropancreatic neuroendocrine neoplasia (GEP-NEN) has hampered previous epidemiological studies. The epidemiology of GEP-NEN was investigated in this study ... -
Establishing a new high pressure steel multi-cell rocker rig for kinetic hydrate inhibitor testing
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011)Low dosage hydrate inhibitors (LDHIs) is a cost-effective alternative to traditional thermodynamic inhibitors (THIs), like methanol and glycols, to prevent the occurrence of natural gas hydrates in gas and oilfield operations. ... -
Establishment of new equipment for testing low dosage hydrate inhibitors
(Masteroppgave/UIS-TN-IMN/2013;, Master thesis, 2013)Gas hydrate formation posses a notorious concern for the oil and gas industry, and it only gets bigger because of that the never-ending pursuit of oil and gas compels the industry into deeper and colder waters. Here gas ... -
Estimation Error in Statistical Process Control
(Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06)This thesis examines estimation errors which occur in control charts with estimated parameters, the effect that these errors have on the charts and the current methods which aim to account for the errors. There is a ... -
Etablering av metode for anrikning og deteksjon av sirkulerende tumorceller i perifert blod
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012-10-01)Kreftceller som sirkulerer med perifert blod kalles sirkulerende tumorceller (STC). Under de rette forholdene kan disse gi opphav til nye svulster i andre organer (spredning). Kreft i bukspyttkjertelen er den fjerde største ... -
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 ... -
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 ... -
Evaluation of kinetic hydrate inhibitors in 1.1 s.g. DW WBM
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011-06)Intention: This thesis is written as a finishing part of my master degree at the University of Stavanger (UiS). The project has been in collaboration with MI-SWACO, A Schlumberger Company, with Irene M. Færgestad as my ... -
Evaluation of metal- and PAH toxicity of thermo treated oil-based drill cuttings by the use of DREAM sediment model
(Masteroppgave/UIS-TN-IMN/2015;, Master thesis, 2015-06-28)Dose-related Risk and Exposure Assessment Model (DREAM) is a risk assessment tool used for modulations of offshore waste discharges effects on the marine environment. The model was first developed in order to estimated the ... -
Evaluation of Radio Frequency Heating and Microwave Radiation for Treatment of Oil Contaminated Drill Cuttings
(Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017-06)Current market challenges make the improvement in drill cuttings treatment technology necessary. Oil companies strive towards robust and environmental friendly treatment solution that allow for high treatment capacity and ... -
Evaluation of TCC treatment of hazardous waste in line with onshore and offshore disposal legislations
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012-07)The significance of a proper Drilling Waste Management has increased in the Petroleum Industry throughout the years. Development of a sustainable Drilling Waste Management is often associated with complying with zero ... -
Evaluation of Using Coagulants for Treatment of Highly Viscous Slop Water Containing Xanthan Gum
(Masteroppgave/UIS-TN-IKBM/2018;, Master thesis, 2018-06-13)Exploration and development drilling activities in offshore Oil and Gas industry generates waste streams, which slop water are among the significant wastes. Slop water is formed when wastewater originating from multiple ... -
Evaluation of UV fluorescence for oil in water analysis
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011-06)Slop water is a mixture of various fluids that is generated during drilling and well operations offshore and it can also be water from operations such as pit and rig cleaning and rainwater from drilling area or areas on ... -
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 ... -
Expression of microRNA-18a and microRNA-18b in the microenvironment of high-grade Cervical Intraepithelial Neoplasia (CIN2-3)
(Master thesis, 2014-06-16)Cervical cancer is ranked as the fourth most common cancer worldwide, and the second leading cause of mortality among young woman 19 – 39 of age. Cervical cancer arises from persistent human papilloma (HPV) infection and ... -
Fate and transport of contaminants in drill cuttings piles - Use of Klif's risk assessment guidelines for contaminated sediments to estimate leaching rates from oil-based drill cuttings piles.
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012)The North Sea contains several oil-based drill cuttings piles which have accumulated on the seabed as a result of oil and gas production. An increased awareness of the contaminants within these piles has grown over the ... -
Fate of persistent organic pollutants during anaerobic treatment and production of biopellets
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012)Treatment of municipal wastewater produces large quantities of sludge that represents a cost for the individual wastewater treatment plant. Proper sludge treatment enables reuse of sludge, possibly as fertilizers. Fertilizer ... -
From sludge to energy
(Masteroppgave/UIS-TN-IMN/2013;, Master thesis, 2013)Two primary municipal sewage sludges from the same source wastewater, but different separation technologies, were collected and fed to two pilot scale (20 L) anaerobic digesters to investigate differences in the biogas ...