Sökning: "Martin Sand"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden Martin Sand.

  1. 1. Wide-Angle Radome Design for Low-Cost Additive Manufacturing

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Martin Fajerberg; Mattias Nylander; [2022]
    Nyckelord :Radar; Radome; A-Sandwich; B-Sandwich; Multilayer; Polarization; Angle of Incidence; Finite Element Method; Differential Evolution Optimization; Transmission Line Theory; Honeycomb; Additive Manufacturing; Electromagnetic Theory; Technology and Engineering;

    Sammanfattning : The radome, a portmanteau of the words radar and dome, is a protective dielectric cover to protect a radar from its surrounding environment. The surrounding environment can be rain, wind, sand, dust and whatever else that might harm the radar. LÄS MER

  3. 2. Determination of thermal conductivity for mastic asphalt by combining previously performed laboratory work and TASEF

    Master-uppsats, Luleå tekniska universitet/Byggkonstruktion och brand

    Författare :Martin Kruse Lindgren; [2021]
    Nyckelord :Mastic asphalt; BPGJA-11; thermal conductivity; TASEF; FEM; Timber; Gjutasfalt; BPGJA-11; termisk konduktivitet; TASEF; FEM; Trä;

    Sammanfattning : Mastic asphalt is a material which in Sweden mainly is used as coating for bridges, parking decks, courtyards and terraces. Mastic asphalt is a material built-up by a combination of bitumen (a type of binder), well-graded aggregate (consists of both coarse and fine ballast), filler, sand and sometimes also fine graded macadam. LÄS MER

  4. 3. GEOPOLYMERS WITH GREEN LIQUOR DREGS : An investigation of the possibility tomanufacture a geopolymer based on residual streams

    Master-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Martin Sundqvist; [2021]
    Nyckelord :;

    Sammanfattning : The pulp and paper industry make up a large part of the Swedish industry and is alsogrowing worldwide. With its growth, the amounts of residuals that are produced alsoincrease. The estimated annual global amount of residuals generated from pulp millsexceeds 1 million tons. LÄS MER

  5. 4. Kustprocesser i Arktis – med en fallstudie på Prins Karls Forland, Svalbard

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Elin Jirdén; [2020]
    Nyckelord :Arktis; Prins Karls Forland; kustprocesser; kusterosion; klimatförändringar; Earth and Environmental Sciences;

    Sammanfattning : The Arctic is facing great changes due to current climate changes, where the Arctic coasts are especially vulnerable. Changes in temperature, mean sea level, storms and sea ice extent are some of the factors that shape how the coasts and beaches can be changed. LÄS MER

  7. 5. TAILORING PROPERTIES TO REPRESENT HPDC TENSILE AND FATIGUE BEHAVIOUR IN ALUMINIUM-SILICON CAST ALLOY PROTOTYPES

    Master-uppsats, Högskolan i Jönköping/JTH. Forskningsmiljö Material och tillverkning – Gjutning

    Författare :Martin Ignacio Riestra Perna; [2015]
    Nyckelord :Aluminium alloys; Prototyping solutions; Sand cast; Plaster cast; Tensile properties; Fatigue properties;

    Sammanfattning : The work presented aims to find alternatives for the prototyping of components by sand and plaster mold manufacturing processes that deliver properties similar to high pressure die casting (HPDC). Sand and plaster test samples have been casted. The Al-7Si-0. LÄS MER