Blar i Faculty of Mathematics and Natural Sciences på tittel
Viser treff 1159-1178 av 9927
-
Co-operative learning in undergraduate mathematics and science education: A scoping review
(Journal article; Peer reviewed, 2023)To cope with an unpredictable future, higher education in mathematics and science (MS) needs to educate a knowledgeable and skilled workforce. Co-operative learning (CL) is a teaching method associated with increased ... -
CO2 Foam Dynamics During CO2 Enhanced Oil Recovery and CO2 Storage
(Doctoral thesis, 2023-10-09)Den stadig voksende befolkningen, økende velstand og økonomisk vekst fører til økende etterspørsel etter energi. Forbrenning av fossile brensler står for 80% av den globale energi produksjonen, noe som gjør det til en ... -
CO2 Foam Monitoring using Pressure and Resistivity Measurements : A Scientific Approach to Validating CO2 Foam Pilots
(Doctoral thesis, 2023-11-15)Denne doktorgradsstudien fokuserer på bruk av trykk- og resistivitetsmålinger for å overvåke effektiviteten av skum som et CO2-mobilitetskontrollmiddel i oljeproduserende reservoarer. Ideen om å bruke resistivitetsmåling ... -
CO2 Foam Stabilization with Nanoparticles and EOR in Fractured Carbonate Systems
(Master thesis, 2015-06-18)This thesis is a part of an ongoing study of CO2 foam mobility control in the Reservoir Physics group at the Department of Physics and Technology (IFT) at the University of Bergen. The goal of this thesis was to evaluate ... -
CO2 Foam Using non-ionic Surfactants : For Increased Storage Capacity and Oil Recovery
(Doctoral thesis, 2020-12-18)Large-scale carbon capture and storage is needed to achieve the target set forward by the Paris agreement; to limit global warming to 1.5 °C. The primary obstacle for implementing large-scale carbon capture and storage is ... -
CO2 Injection in Hydrate Bearing Sandstone with Excess Water
(Master thesis, 2013-05-31)It has previously been shown that methane can be produced from gas hydrates by exposing it to carbon dioxide. Since CO2 is the preferred hydrate former below 10 °C it will spontaneously replace CH4 as the guest molecule ... -
CO2 injeksjon for økt oljeutvinning i kalk
(Master thesis, 2013-05-31)Denne masteroppgaven studerer CO2 injeksjon for økt oljeutvinning i kalkstein, og hvordan parametere som sprekker, initielt vann og mobilitetskontroll påvirker oljeproduksjon. Det ble gjennomført 15 eksperimenter med ... -
CO2 mobility reduction using foam stabilized by CO2- and water-soluble surfactants
(Journal article; Peer reviewed, 2021)Foam can reduce CO2 mobility to improve the sweep efficiency during injection into subsurface geological formations for CO2 storage and enhanced oil recovery. However, CO2 foams are thermodynamically unstable, so they must ... -
Co2 trapping in sloping aquafiers: High resolution numerical simulations
(Chapter, 2010) -
CO2-Foams for Enhanced Oil Recovery and CO2 Storage
(Doctoral thesis, 2019-03-01)Human prosperity, economic growth and energy supply have shown a strong positive correlation from the start of the industrial revolution until the present. During the 20th century, cheap and reliable energy from fossil ... -
CO2-injeksjon i Utsiraformasjonen - et studie av CO2/vann-kontakten og temperaturavhengige parametere
(Master thesis, 2012-06-01)Since the start-up in 1996 over 15 Mt CO2 have been injected in to the geological formation Utsira at the commercial CO2 storage project Sleipner. The propagation of CO2 in the reservoir has been monitored by time-lapse ... -
Coastal heathland vegetation is surprisingly resistant to experimental drought across successional stages and latitude
(Journal article; Peer reviewed, 2021)In the last decade, several major dwarf-shrub dieback events have occurred in northern European coastal heathlands. These dieback events occur after extended periods with sub-zero temperatures under snow-free conditions ... -
Coastal ocean fronts and eddies imaged with ERS 1 synthetic aperture radar
(Peer reviewed; Journal article, 1996-03-15)ERS 1 C band synthetic aperture radar (SAR) data were collected during the Norwegian Continental Shelf Experiment (NORCSEX) both in November 1991 during the ERS 1 commissioning phase and at different seasons in 1992 and ... -
Coastal permafrost was massively eroded during the Bølling-Allerød warm period
(Journal article; Peer reviewed, 2023)The Bølling-Allerød interstadial (14,700–12,900 years before present), during the last deglaciation, was characterized by rapid warming and sea level rise. Yet, the response of the Arctic terrestrial cryosphere during this ... -
Coastal submesoscale processes and their effect on phytoplankton distribution in the southeastern Bay of Biscay
(Journal article; Peer reviewed, 2021)Submesoscale processes have a determinant role in the dynamics of oceans by transporting momentum, heat, mass, and particles. Furthermore, they can define niches where different phytoplankton species flourish and accumulate ... -
COASTWATCH´95: ERS 1/2 SAR detection of natural film on the ocean surface
(Peer reviewed; Journal article, 1998-10-15)Ocean mesoscale phenomena such as eddies and current convergence zones can often be seen in synthetic aperture radar (SAR) images due to characteristic patterns caused by natural film induced damping of the waves. Such ... -
Cod spawning in the Borgundfjord Marine Protected Area
(Master thesis, 2020-06-27)The Norwegian coastal cod population north of 62°N declined in the years from 1997 to 2005 and has since remained low. The Borgundfjord has since 2009 served as an extractive Marine Protected Area (MPA) for protecting the ... -
Code-based cryptography: A superficial introduction
(Master thesis, 2018-10-06)This thesis provides an overview of some known post-quantum cryptography schemes with special attention given to code-based schemes. It also discusses some challenges that may arise trying to implement a McEliece-like ... -
Coded communication on the Internet
(Master thesis, 2019-06-26)The Internet is giving people many opportunities to interact, but for latency-sensitive activities, there is still room for improvement. It is not always good enough that messages arrive; some times they should arrive ... -
Coding for DNA-based Storage Systems
(Doctoral thesis, 2024-05-24)DNA-basert lagring, eller lagring av brukerdata i deoksyribonukleinsyre (DNA) tråder, kan teoretisk gi dramatisk høyere lagringskapasitet og lagringsrobusthet sammenlignet med dagens lagringsteknologier. Flere småskalaek ...