Electric failures are a problem for customers and grid operators. Identifying causes and localizing the source of failures in the grid is critical. Here, we focus on a specific power grid in the Arctic region of Northern Norway. First, we collected data pertaining to the grid topology, the topography of the area, the historical meteorological data, and the historical energy consumption/production data. ...

Ocean gateways connecting ocean basins are crucial for water and heat circulation, which influence global temperature, climate evolution and sediment distribution. While deep-water gateways have been a major research focus by the community, very little attention has been drawn to shallower gateways located on the continental shelves, where such circulation also takes place. In this study, we investigate ...

This thesis presents the development of theoretical models for the calculations of one- and two-photon absorption, and computational studies on solvated systems and biomolecules. The photon-absorbing chromophore is described by density functional theory, while the effects of the surroundings are taken into account by means of polarizable embedding models. The theory and implementation of a three-layered ...

Electric field antennas are capable of detecting dust impacts in different space environment. We analyze the dust impact signals detected by the Cassini Radio and Plasma Wave Science instrument at different locations around Saturn and compare them with dust impact signals simulated in laboratory conditions and numerically. The spacecraft potential, the size, and capacitance of the impacted element ...

Many recent works in the field of graph machine learning have introduced pooling operators to reduce the size of graphs. In this article, we present an operational framework to unify this vast and diverse literature by describing pooling operators as the combination of three functions: selection, reduction, and connection (SRC). We then introduce a taxonomy of pooling operators, based on some of ...

Lewis acids (LAs) have been shown to accelerate hydrogenation of C0₂, but the underlying mechanistic details remain to be elucidated. We have employed computational methods to investigate how LAs affect CO₂ hydrogenation with a range of known metal-hydrides (L_nIr–H, L_nRu–H, L_nMn–H, L_nCo–H). Our results show that LAs can alter the ...

Denne masteroppgåva beskriv korleis naturfaglærarar underviser i temaet globale klimaendringar på Vg1-nivå i vidaregåande opplæring, og kva utfordringar dei møter i denne undervisninga. Studien bruker metodetriangulering og kombinerer dei kvalitative metodane fokusgruppeintervju og observasjon med ei kvantitativ spørjeskjemaundersøking. Fokusgruppeintervjua danna grunnlaget for utarbeidinga av ...

Gjennom de siste ti årene har en rask utvikling av nye bioteknologiske metoder vært fremtredene som et resultat av teknologiens fremvekst. For den moderne lærer, i den videregående skole, medfører dette stadig nye utfordringer innenfor tilrettelegging av faglig oppdatert undervisning. Spesielt krevende er det å kunne tilby laboratorieundervisning som gir god læring, og hvor utstyr og materiell ikke ...

TUNDRA Schoolnet er et forskningsbasert skoleprosjekt som ønsker å gi et kunnskapsløft i hvordan klimaendringer påvirker den lokale naturen blant lærere og elever i tundraregionen. Hovedfokuset i denne masteroppgaven ble utviklingen av økologiundervisningsopplegget ”Se rovdyrene!” som skulle tas i bruk på 4 deltakerskoler på Varangerhalvøya. Utdanningssamfunnet er opptatt av at elevers engasjement ...