Search for dissertations about: "Per Ahlgren"

Showing result 1 - 5 of 7 swedish dissertations containing the words Per Ahlgren.

  2. 1. The effects of indexing strategy-query term combination on retrieval effectiveness in a Swedish full text database

    Author : Per Ahlgren; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; base word form index; full text retrieval; indexing strategies; inflected word form index; morphological analysis; normalization; Swedish; SWETWOL; truncation; user scenarios; informationsåtervinning;

    Abstract : This thesis deals with Swedish full text retrieval and the problem of morphological variation of query terms in the document database. The study is an information retrieval experiment with a test collection. While no Swedish test collection was available, such a collection was constructed. READ MORE

  4. 2. Improving Computer Communication Performance by Reducing Memory Bandwidth Consumption

    Author : Bengt Ahlgren; Per Gunningberg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Computer Systems; Datorteknik;

    Abstract : .... READ MORE

  5. 3. Epidermal Melanocyte Response to Radiotherapy

    Author : Per Fessé; Henrik Lindman; Ingela Turesson; Johan Ahlgren; Jan Nyman; Catharine West; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Melanocytes; fractionated radiotherapy; ΔNp63; MITF; PAX3; SOX10; p53; p21; BMI1; pRb; CXCR2; DNA-DSB; 53BP1; CXCR2;

    Abstract : Cutaneous interfollicular melanocytes protect the skin from UV-radiation (UVR), and their response to UVR is well established. To date, the response activated in melanocytes by repeated genotoxic insults from radiotherapy (RT) has not been explored. READ MORE

  6. 4. Reducing ships' fuel consumption and emissions by learning from data

    Author : Fredrik Ahlgren; Marcus Thern; Maria E. Mondejar; Cecilia Österman; Ann-Charlotte Larsson; Erik Dahlquist; Linnéuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shipping; energy efficiency; orc; machine learning; emissions; Sjöfartsvetenskap; Maritime Science;

    Abstract : In the context of reducing both greenhouse gases and hazardous emissions, the shipping sector faces a major challenge as it is currently responsible for 11% of the transport sector’s anthropogenic greenhouse gas emissions. Even as emissions reductions are needed, the demand for the transport sector rises exponentially every year. READ MORE

  7. 5. Picophytoplankton seasonal dynamics in the Baltic Sea

    Author : Javier Alegria Zufía; Hanna Farnelid; Catherine Legrand; Nathan Ahlgren; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; picophytoplankton; Synechococcus; picoeukaryote; phycoerythrin; phycocyanin; ammonium; nitrate; 16S rDNA; flow cytometry; grazing; viral lysis; seasonality; Akvatisk ekologi; Aquatic Ecology;

    Abstract : Picophytoplankton (15°C there was a preference for ammonium over nitrate. Clade A/B dominated the SYN community, except during summer at the coastal station when low nitrate and warm temperatures promoted S5.2 dominance. Grazing was observed to control SYN and PPE abundances and had an effect on the SYN community structure. READ MORE