Sökning: "Mikael Jacobsson"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Mikael Jacobsson.

  1. 1. Microstructural, Mechanical and Tribological Characterisation of CVD and PVD Coatings for Metal Cutting Applications

    Författare :Mikael Fallqvist; Staffan Jacobsson; Mikael Olsson; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tribology; Friction; Wear; Coatings; CVD; PVD; Alumina; Metal cutting; Teknisk fysik med inriktning mot tribomaterial; Engineering Science with specialization in Tribo Materials; Steel Forming and Surface Engineering;

    Sammanfattning : The present thesis focuses on characterisation of microstructure and the resulting mechanical and tribological properties of CVD and PVD coatings used in metal cutting applications. These thin and hard coatings are designed to improve the tribological performance of cutting tools which in metal cutting operations may result in improved cutting performance, lower energy consumption, lower production costs and lower impact on the environment. LÄS MER

  3. 2. Climate influenced deposition on a low latitude Sheinwoodian carbonate ramp, Gotland, Sweden

    Författare :Mikael Jacobsson; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gotland; tempestites; cyclicity; orbital forcing; Sheinwoodian; Silurian; Wenlockian; Sedimentology; Sedimentologi;

    Sammanfattning : The Sheinwoodian succession of Gotland comprises the Högklint, Tofta and Hangvar Formations and most of the Slite Group. The succession consists of hierarchically ordered shallow marine depositional cycles, produced by orbitally forced climate changes. LÄS MER

  4. 3. Träffar vi alltid rätt? : lärarens tal om resurser för elevers lärande i ämnet Idrott och hälsa

    Författare :Andreas Jacobsson; Mikael Quennerstedt; Åsa Bäckström; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Research on Physical Education and Health (PEH) in Sweden has shown PEH teachers more or less taking learning for granted when instructing children and adolescents to move, work out sweat and be active (e.g. Öhman, 2007; Lundvall & Meckbach, 2008; Öhman & Quennerstedt, 2008; Quennerstedt, et al., 2008; Ekberg, 2009). LÄS MER

  5. 4. Energilandskap i förändring : Inramningar av kontroversiella lokaliseringar på norra Gotland

    Författare :Karin Edberg; Adrienne Sörbom; Anna Storm; Kerstin Jacobsson; Mikael Klintman; Södertörns högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Energy infrastructure; natural gas; wind power; framing; social practice; facility siting; place; trust; risk; energy transition; climate change; environment; national security; Gotland; Energiinfrastruktur; naturgas; vindkraft; inramningar; sociala praktiker; lokaliseringar; plats; tillit; risk; energiomställning; klimat; miljö; säkerhetspolitik; Gotland.; Politics; Economy and the Organization of Society; Politik; ekonomi och samhällets organisering; Östersjö- och Östeuropaforskning; Baltic and East European studies;

    Sammanfattning : Energisystemet omstruktureras. Nya energikällor tillkommer och andra fasas ut samtidigt som efterfrågan på energi kvarstår ur ett globalt perspektiv. LÄS MER

  7. 5. Lightweight Cryptographic Group Key Management Protocols for the Internet of Things

    Författare :Teklay Gebremichael; Mikael Gidlund; Ulf Jennehag; Andreas Jacobsson; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Privacy and security of the IoT; IoT group key management; lightweight key management protocols; elliptic curve cryptography; proximity-based authentication;

    Sammanfattning : The Internet of Things (IoT) is increasingly becoming an integral component of many applications in consumer, industrial and other areas. Notions such as smart industry, smart transport, and smart world are, in large part, enabled by IoT. LÄS MER