Sökning: "roads"

Visar resultat 31 - 35 av 300 avhandlingar innehållade ordet roads.

  1. 31. Analysis of side friction impacts on urban roads : Case study Dar-es-Salaam

    Författare :Masatu L. M. Chiguma; Karl-Lennart Bång; Christer Hydén; KTH; []
    Nyckelord :Side friction factors; urban road links; speed-flow relationships; macroscopic method; microscopic method; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : Side friction factors are defined as all those actions related to the activities taking place by the sides of the road and sometimes within the road, which interfere with the traffic flow on the travelled way. They include but not limited to pedestrians, bicycles, non-motorised vehicles, parked and stopping vehicles. LÄS MER

  3. 32. Water in roads: Flow paths and pollutant spread

    Författare :Hedi Rasul; B. Olofsson; Helen Kristine French; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; De-icing salt; Road; Tracer test; ERT; Water content; Road pollutants; Flow pathways; Land and Water Resources Engineering; Mark- och vattenteknik;

    Sammanfattning : For better road construction and maintenance while minimising damage to the environment and groundwater, it is essential to monitor and model hydrological impacts on roads and consider pollution of groundwater. Water content in unbound material in road layers changes continuously and water flow usually occurs along pathways that are the main corridors for pollutant spread to groundwater. LÄS MER

  4. 33. All Roads Lead to the Non-Coding RNome : Evolution of Multicellularity and Host Response to Bacterial Infection

    Författare :Jonas Kjellin; Fredrik Söderbom; Jonathan Chubb; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ncRNA; Dictyostelia; miRNA; Class I RNA; host-pathogen interaction; Biologi med inriktning mot mikrobiologi; Biology with specialization in Microbiology;

    Sammanfattning : The ability to control gene expression is fundamental for all living organisms. Therefore, a large variety of regulatory mechanisms exist in each cell which are essential for e.g. developmental processes and to quickly adapt to different cellular stresses such as infection. LÄS MER

  5. 34. Pollution of groundwater and surface water by roads : with emphasis on the use deicing salt

    Författare :Eva-Lotta Thunqvist; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 35. Modeling of frost heave and surface temperatures in roads

    Författare :Åke Hermansson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Soil Mechanics; Geoteknik;

    Sammanfattning : Temperature and moisture are very essential parameters when describing the condition of a pavement. In most cases, a high moisture content involves a decreased bearing capacity and, consequently, a shorter durability of the pavement. A frozen pavement has a greater bearing capacity than the corresponding construction in spring or late autumn. LÄS MER