Search for dissertations about: "particle gis"

Found 5 swedish dissertations containing the words particle gis.

  2. 1. Metallic particles in GIS : identification and particle lift-off/fall-down on coated electrodes

    Author : Magnus Holmberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; identification; acoustic measurements; metallic particles; fall-down; lift-oss; dielectric coating; SF6; wire particles; GIS;

    Abstract : .... READ MORE

  4. 2. Motion of Metallic Particles in Gas Insulated Systems

    Author : Magnus Holmberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The motion of a charged metallic particle subjected to an electric field in a gas insulated system is controlled by several parameters. The higher applied electric field, the better the individual parameters have to be mod eled in order to make satisfactory calculations of the motion. READ MORE

  5. 3. Water erosion modeling using fractal rainfall disaggregation- a study in semiarid Tunisia

    Author : Sihem Jebari; Avdelningen för Teknisk vattenresurslära; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reservoir siltation; regionalization; fractal analysis; Atlasic mountain range; erosive events; semiarid area; soil loss; Tunisia.; Soil erosion; semiarid; Tunisia; rainfall; fractal; diaggregation;

    Abstract : In the Tunisian semiarid area, water erosion processes have led to negative economic and environmental consequences in a context of limited water resources. To characterize and predict these degradation phenomena, a comprehensive high-resolution data base on erosive rainfall, together with siltation records for 28 small reservoirs were analyzed. READ MORE

  6. 4. Asthma, rhinitis, and asthma-related symptoms in relation to vehicle exhaust using different exposure metrics

    Author : Lars Modig; Bertil Forsberg; Lars Barregård; Umeå universitet; []
    Keywords : Asthma; rhinitis; asthmatic symptoms; annoyance; vehicle exhaust; Occupational and Environmental Medicine; arbets- och miljömedicin;

    Abstract : Air pollution is a well known public health problem that involves both long-term and acute effects. An outcome associated with traffic-related air pollution is respiratory illness. READ MORE

  7. 5. Sedimentological and Hydrological Investigation of Mosul Dam Reservoir

    Author : Issa E Issa; Ian Foster; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Area-storage capacity curves; Area reduction method; Bathymetric survey; Losing storage capacity; Mosul dam; Reservoir bottom morphology; Reservoir sedimentation; Sediment trap efficiency; Useful life of dam; Soil Mechanics; Geoteknik;

    Abstract : Reservoir sedimentation is the main problem that directly affects the performance of dams due to the reduction in the storage capacity of their reservoirs. Monitoring the storage capacity of reservoirs is an important issue for the planners, designers and operators of the dams. READ MORE