Sökning: "kompositer"

Visar resultat 1 - 5 av 46 avhandlingar innehållade ordet kompositer.

  1. 1. Deployment Simulations of a Composite Boom for Small Satellites

    Författare :Pau Mallol Parera; Gunnar Tibert; Keith Seffen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; small satellites; deployable structures; high packaging ratio; composites; bi-stable; gravity off-loading system; små satelliter; utfällbara strukturer; kompakt ihoppackning; kompositer; bistabil; tyngdkraftskompenserande system;

    Sammanfattning : The use of small satellites is rapidly growing, especially satellites with masses between 1 and 10 kg and few litres of volume. The main reasons are due to the low development time and cost. Electronics miniaturization and high density integration is enabling the small satellites class to perform more and better tasks and at a lower cost. LÄS MER

  3. 2. Development of Constituents for Multi-functional Composites Reinforced with Cellulosic Fibers

    Författare :Zainab Al-Maqdasi; Roberts Joffe; Nazanin Emami; Liva Pupure; Yvonne Aitomäki; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose fibers; multi-functional; composites; nano-reinforcement; thermoplastics; development; Polymeric Composite Materials; Polymera kompositmaterial;

    Sammanfattning : Bio-basedcomposites are being increasingly used in applications where weight saving,and environmental friendliness is as important as structural performance. Obviously, bio-based materials have their limitations regarding durability and stability of the properties,but their potential in use for advanced applications can be expanded if they were functionalized and considered beyond their structural performance. LÄS MER

  4. 3. Studies on the thermal degradation of thermosetting polyimides and their composites

    Författare :Valeri Petkov; Patrik Fernberg; Guan Gong; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymer composites; Polyimide; Thermal oxidative degradation; Polymeric Composite Materials; Polymera kompositmaterial;

    Sammanfattning : The thesis contains a background and reflections section, an introduction, and three appended articles. The first section is reserved for some of the background and basics on polymers and polymer composites and a discussion on their effect on our everyday lives. The introduction gives a brief recap of the project. LÄS MER

  5. 4. Microfluidic Compartmentalization for Smart Materials, Medical Diagnostics and Cell Therapy

    Författare :Emre Iseri; Wouter van der Wijngaart; Nicole Pamme; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Microfluidics; microfabrication; compartmentalization; partitioning; droplet microfluidics; self-assembly; 3D microarrays; soft composites; beads; particles; core-shell particle; point-of-care; diagnostics; dipstick; digital bioassays; lab-on-a-chip; urinary tract infection; bacteria detection; E. coli; cell encapsulation; hydrogel; cell therapy; spider silk; magnetic metamaterials.; Mikrofluidik; mikrotillverkning; kompartmentalisering; partitionering; droppmikrofluidik; självmontering; 3D-mikromatriser; mjuka kompositer; pärlor; partiklar; kärna-skalpartikel; vårdpunkt; diagnostik; mätsticka; digitala bioanalyser; laboration-a-chip; urinvägsinfektion; bakteriedetektering; E. coli; cellinkapsling; hydrogel; cellterapi; spindelsilke; magnetiska metamaterial.;

    Sammanfattning : The organisation of fluids in small compartments is ubiquitous in nature, such as in the cellular composition of all life. This work explores several engineering avenues where microscale fluid compartmentalization can bring novel material properties or novel functionality in life sciences or medicine. LÄS MER

  7. 5. Characterisation of thermally induced degradation of high-temperature polymers and composites

    Författare :Valeri Ivanov Petkov; Patrik Fernberg; Lars Pilgaard Mikkelsen; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymeric Composite Materials; Polymera kompositmaterial;

    Sammanfattning : This project aimed to broaden the knowledge of high-temperature polymers and composites when exposed to elevated temperatures and an oxygen-containing atmosphere. The main accent has been on thermosetting polyimide resins reinforced with carbon fibers. LÄS MER