Sökning: "stationer"

Visar resultat 1 - 5 av 22 avhandlingar innehållade ordet stationer.

  1. 1. Kolväten i luft vid bensinstationer

    Författare :Pia M Berglund; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bensinångor; bensinmackar; exposition; kolväten; bensen; tankning; alkener;

    Sammanfattning : Kolväten i luft vid bensinstationer har undersökts med hjälp av gaskromatografiska analyssystem. I flertalet prover identifierades 20-30 lätta kolväten. Särskilt intresse ägnades åt det cancerogena kolvätet bensen samt åt alkenerna. LÄS MER

  2. 2. Characterizing Temporal Changes and Inter-Site Correlations in Daily and Sub-Daily Precipitation Extremes

    Författare :Agne Burauskaite-Harju; Anders Grimvall; Marian Scott; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Klimatförändringar; matematiska modeller; Statistics; Statistik;

    Sammanfattning : Information on weather extremes is essential for risk awareness in planning of infrastructure and agriculture, and it may also playa key role in our ability to adapt to recurrent or more or less unique extreme events. This thesis reports new statistical methodologies that can aid climate risk assessment under conditions of climate change. LÄS MER

  3. 3. Public transport demand and supply management under uneven passenger distributions

    Författare :Soumela Peftitsi; Erik Jenelius; Oded Cats; Achille Fonzone; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; public transport; uneven passenger distribution; transit assignment model; travel behavior; control measures; crowding information; skip-stop; Transportsystem; Transport Systems;

    Sammanfattning : Overcrowding in public transport (also known as public transportation, public transit, or transit) systems due to increased travel mobility has become a major problem for public transport operators. Overcrowded transit stations and vehicles are connected to travel time variability and greater discomfort for the passengers. LÄS MER

  4. 4. Mobility Knowledge Graph and its Application in Public Transport

    Författare :Qi Zhang; Zhenliang Ma; Erik Jenelius; Carlos Lima Azevedo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Knowledge graph; Smart card data; Public transport; User-station attention; Relation extraction; Transportvetenskap; Transport Science; Transportsystem; Transport Systems;

    Sammanfattning : Efficient public transport planning, operations, and control rely on a deep understanding of human mobility in urban areas. The availability of extensive and diverse mobility data sources, such as smart card data and GPS data, provides opportunities to quantitatively study individual behavior and collective mobility patterns. LÄS MER

  5. 5. Styrning av tågtrafik på Malmbanan

    Författare :Kristina Nilsson; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell logistik; Industrial Logistics;

    Sammanfattning : The single-track Swedish iron ore line Malmbanan stretches from Luleå to the Norwegian city of Narvik. The mine company LKAB transport iron ore on Malmbanan from the mines in Kiruna and Malmberget to the harbours in Narvik and Luleå for export. The daily traffic also consists of passenger trains and freight trains. LÄS MER