Sökning: "Older roads"

Visar resultat 1 - 5 av 28 uppsatser innehållade orden Older roads.

  1. 1. Stamskador och dess uppkomst vid mekaniserad kvalitetsgallring i norra Sverige

    Kandidat-uppsats, SLU/School for Forest Management

    Författare :Lovisa Hansén; [2024]
    Nyckelord :skördare; faktorer; gallringskvalitet;

    Sammanfattning : Gallring är ett ingrepp som görs i ett skogsbestånd med syfte att ta bort ett urval av träd för att gynna de kvarstående, samt att ge en intäkt i form av virke. Som skogsägare kan man prioritera vilka värden man vill gynna i sin skog; ekonomiska, sociala och/eller biologiska. LÄS MER

  3. 2. Study and optimization of a hexacopter's composite structure

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Helena Delmotte; [2023]
    Nyckelord :Lightweight structure; Drone; Structural optimization; FEA; Lättviktsstruktur; Drönare; Strukturell optimering; FEA;

    Sammanfattning : Nowadays, the forestry industry still uses heavy machinery damaging both the forest and the soil. The start-up AirForestry is currently developing a sustainable way to thin and harvest trees. With their 6.2m wide electric drone carrying a harvesting tool, they can reach, thin, cut and carry trees without the need for access roads. LÄS MER

  4. 3. Tree growth and field vegetation in forest edge zones on a property in southeast Sweden

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Författare :Pieter van Tongeren; [2023]
    Nyckelord :tree growth; diversity; field vegetation; edge zones; edge effect;

    Sammanfattning : Summary  In the 1990s a new way of thinking about forestry started. One of the effects of the changing silvicultural practices was that the size of clearcuts became smaller. As the felling areas were reduced in size, the areas where young and older forest meet grew, with this also the occurrence of edge zones increased. LÄS MER

  5. 4. Integrated DC fast charger in an electric vehicle

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Christoffer Johansson; Axel von Keyserlingk; [2022]
    Nyckelord :Boost converter; DC charging; Electric machine; Inverter; Electric vehicle; Technology and Engineering;

    Sammanfattning : More and more electric vehicles are emerging with a nominal battery voltage higher than what most older DC fast chargers are capable of charging. This requires the vehicle manufacturers to include a high power DC to DC converter in order to be able to charge at these stations, adding cost and complexity. LÄS MER

  7. 5. Att spåra vägar : Hur de utvecklas, förändras eller försvinner.

    M1-uppsats, Linnéuniversitetet/Institutionen för kulturvetenskaper (KV)

    Författare :Peter Lindblom; [2022]
    Nyckelord :Older roads; hollow roads; find ancient road sections; older roads in inner Småland; road changes at major shifts storskifte ; road changes at legal changes lagaskifte .;

    Sammanfattning : This is a study of local roads in two villages in the interior of Småland to see how much of the older road network can be found by studying maps from the 19th century, today's digital maps with height shading and Fornsök's map service. The introduction will be a review of other people's studies and their results that are used to be able to answer three questions. LÄS MER