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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 ... -
Coal phase-out pledges follow peak coal: evidence from 60 years of growth and decline in coal power capacity worldwide
(Journal article; Peer reviewed, 2023)Transitioning to net-zero carbon emissions requires phasing-out unabated coal power; however, recently it has only been declining in some countries, while it stagnated or even increased in others. Where and under what ... -
Coalition and Relativised Group Announcement Logic
(Journal article; Peer reviewed, 2021)There are several ways to quantify over public announcements. The most notable are reflected in arbitrary, group, and coalition announcement logics (APAL, GAL, and CAL correspondingly), with the latter being the least ... -
Coalition Logic for Specification and Verification of Smart Contract Upgrades
(Lecture Notes in Computer Science;13753, Chapter, 2022)It has been argued in the literature that logics for reasoning about strategic abilities, and in particular coalition logic (CL), are well-suited for verification of properties of smart contracts on a blockchain. Smart ... -
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 ... -
Coastal wind field retrievals from ERS synthetic aperture radar images
(Journal article; Peer reviewed, 1998-04-15)A unique series of European Remote Sensing Satellite (ERS) 1 and 2 C band synthetic aperture radar (SAR) images was obtained off the southern coast of Norway during the Coast Watch’95 experiment in September 1995. In this ... -
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 ... -
Cobalamin and folate status in 6 to 35 months old children presenting with acute diarrhea in Bhaktapur, Nepal
(Peer reviewed; Journal article, 2014-03-03)Background: Cobalamin and folate are essential micronutrients and are important in DNA and RNA synthesis, cell proliferation, growth, hematopoiesis, and cognitive function. However, data on cobalamin and folate status are ... -
Cobalamin and folate status in women during early pregnancy in Bhaktapur, Nepal
(Journal article; Peer reviewed, 2021)The demand for cobalamin (vitamin B12) and folate is increased during pregnancy, and deficiency during pregnancy may lead to complications and adverse outcomes. Yet, the status of these micronutrients is unknown in many ... -
Cochleaimplantat og postoperativ auditiv rehabilitering - En studie om veien tilbake i en hørende verden
(Master thesis, 2017-06-15)Objectives: The aim of this study was to identify service availability and uptake of post operative auditory rehabilitation for adult pasients with cochlear implants. Furthermore, there was an aim to investigate the effect ... -
Cocineras de posguerra Doña Petrona y Josefina Velázquez de León: recetarios para la sociedad de masas en Argentina y México
(Master thesis, 2021-06-02)This study closely analyses two cookbooks, El Libro de Doña Petrona (1950, Argentina) and Los 30 Menús (1945, Mexico), by Petrona C. de Gandulfo and Josefina Velázquez de León respectively. The authors were contemporaries ...