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Visar resultat 1 - 5 av 17 uppsatser som matchar ovanstående sökkriterier.

  1. 1. The Development and Testing of Low-Cost Heat Transfer Enhancements for Solar Dryers

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Hoda Mahmoodi; [2023]
    Nyckelord :Solar dryer; Bhutan; Drying rate; Solar absorber; Technology and Engineering;

    Sammanfattning : In the mountainous regions of Bhutan and Nepal, post-harvest losses cause significant challenges for producers. Open air sun drying is usually used by farmers to preserve their produce. There are many disadvantages to this method. LÄS MER

  3. 2. Dead layer determination for the new implantation detector of the LUNDIUM decay station

    Kandidat-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Eleftheria Kosta; [2022]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The Nuclear Structure Group in Lund, focuses on nuclear spectroscopy of decays of rare isotopes. A new decay station, called LUNDIUM, is currently being built, which will involve silicon and germanium detectors for the study of these nuclei. This thesis focuses on the characterization of one of the new silicon detectors, the implantation one. LÄS MER

  4. 3. Thermal neutron counting and gamma-ray peak identification from fusion reactions, using a Sodern Genie-16 Neutron Generator

    Kandidat-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Auden Ti; [2022]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : This thesis work focuses on the categorisation of a Sodern Genie-16 Neutron Generator, at the Nuclear Applications Laboratory, Lund University. To that end, the goals of this work focuses on the re-development of the pre-existing infrastructure surrounding the Sodern Genie-16 Neutron Generator for the purposes of internally irradiating samples, and the subsequent categorisation of the new configuration for extraction of fast neutrons. LÄS MER

  5. 4. Development and testing of a novel solar dryer design with an incorporated heat exchanger - For use in the Himalayan regions

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Adam Probert; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Food scarcity is a common occurrence for farmers in the rural Himalayan regions. As fruits and vegetables are a crucial part of most farmers' diet, food deficiency can become evident in between harvesting periods, when there is no fresh supply. LÄS MER

  7. 5. Taluppfattbarhet för utrymningslarm

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Denise Pettersson; Emma Lindh; [2020]
    Nyckelord :Taluppfattbarhet; Talöverföringsindex; Talat Utrymningslarm; Människors Beteende vid en Utrymningssituation; Utrymning; Perception av ljud; Maskeringseffekter; Lyssningstest Speech Intelligibility; Speech Transmission Index; Voice Evacuation Alarm; Evacuation; Human Behaviour in Fire; Speech Perception; Masking effects; Listening test; Technology and Engineering;

    Sammanfattning : Talade utrymningslarm installeras som en riskreducerande åtgärd i byggnader där det vistas personer som inte kan väntas ha god lokalkännedom. En grundförutsättning för att utrymningslarmet ska uppfylla sin riskreducerande effekt är att det är hörbart, därav är ett talöverföringsindex, STI, på 0,55 rekommenderat. LÄS MER