Sökning: "Quarry"

Visar resultat 1 - 5 av 71 uppsatser innehållade ordet Quarry.

  1. 1. Modular Communications Relay for Autonomous Quarry Operation

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik; Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Simon Knutsson; Daniel Larmark; [2018]
    Nyckelord :Automation; Communications platform; Quarry; Open-pit mining; Construction Equipment; Automation; Kommunikations plattform; Bergtäkt; Gruvindustrin; Bygg-och Anläggningsutrustning;

    Sammanfattning : Today’s quarries face a change in the operational processes, where the development of automated transport systems and machines have intensified the necessity for reliable and stable data transfer. Within the dynamic environment, with piles building up suddenly, frequently changing mining faces due to blasting, as well as a frequently changing general environment that affect the network coverage negatively, there is a need for a solution that can adapt to the changing environment. LÄS MER

  2. 2. Design and Development of a Wireless Multipoint E-stop System for Autonomous Haulers

    Master-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

    Författare :Karlsson Alexander; [2018]
    Nyckelord :;

    Sammanfattning : Safety-related functions are important in autonomous industrial applications and are featured in an extensive body of work contained within the standards. The implementation of safety-related systems is commonly done by an external company at a great cost and with limited flexibility. LÄS MER

  3. 3. Simulation of an Electric Quarry with Automated Transporter Scheduling

    Master-uppsats, KTH/Optimeringslära och systemteori; KTH/Optimeringslära och systemteori

    Författare :Bilin Chen; Ida Karlsson; [2018]
    Nyckelord :;

    Sammanfattning : An electric site project is being developed by Volvo Construction Equipment with the goal to transform the quarry and aggregate industry by reducing carbon emissions by up to 95 % and total ownership cost up to 25 %. The goal is achieved by using electrical autonomous vehicles as the work force. LÄS MER

  4. 4. Stenrik eller stenfattig : En studie om hur det var att arbeta, leva och bo på Tjurkö

    L3-uppsats, Linnéuniversitetet/Institutionen för kulturvetenskaper (KV)

    Författare :Sara Goos; [2018]
    Nyckelord :;

    Sammanfattning : In this study, we follow the life of ordinary people at the quarrying at Tjurkö in Karlskrona archipelago, Sweden. The life of the poor was hard and tiring to the bone. A normal workday for a stonecutter started around seven am. to around eight or nine pm. LÄS MER

  5. 5. Energy recovery – Gasification, combustion or plasma? : Competitor or complement?

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Erik Lundegård; [2018]
    Nyckelord :combustion; gasification; hydrogen; plasma; Plasma; förgasning; avfall; vätgas;

    Sammanfattning : Abstract Energy recovery – Gasification, combustion or plasma? -          Competitor or complement? The Swedish waste-to-energy system has been developed during many years, and the facilities are well established within the waste management system. Even though the waste volume is significantly reduced by 70 – 80 %, the residues are quite challenging to manage due to high content of pollutants. LÄS MER