Sökning: "coexistence"

Visar resultat 11 - 15 av 171 avhandlingar innehållade ordet coexistence.

  1. 11. Hydrogen Production by Caldicellulosiruptor species: The Organism and the Metabolism

    Författare :Ahmad Zeidan; Teknisk mikrobiologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Extreme thermophile; Caldicellulosiruptor; Biohydrogen; Co-culture; Coexistence; Hydrogen tolerance; Genome-scale reconstruction; In silico; Flux balance analysis;

    Sammanfattning : Hydrogen holds a great promise as an efficient and clean future energy carrier due to its high energy density and lack of pollutant generation. Anaerobic degradation of organic substrates by heterotrophic microorganisms enables the production of hydrogen from a wide spectrum of agricultural feedstock and waste products. LÄS MER

  3. 12. Coexistence and competition in unlicensed spectrum

    Författare :Olav Queseth; Jens Zander; Douglas Sicker; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signal processing; Signalbehandling;

    Sammanfattning : Spectrum regulation is tricky and until recently the methods used for almost a century has sufficed. But as wireless communication has increased the demands on spectrum has increased. The regulators have responded by relaxing the current regulatory framework as well as opening up more bands for license exempt or unlicensed operation. LÄS MER

  4. 13. The coexistence of family, ownership, and business : Conceptualizing entanglement and business family ownering

    Författare :Lisa Bäckvall; Leif Melin; Anna Larsson; Robin Holt; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Family Business; Entanglement; Collective Subjective Corpus; Three-Circle Model of Family Business; Social Praxeology; Practice Theory; Business Family; Business Family Ownership Practice; Business Family Owning; Governance; CEO;

    Sammanfattning : This research engages with the topic of business family ownership through an ethnographically inspired study of business governance-related activities constructed as family members’ business-owning practices relationally and over time. In short, it is about what business families do when owning businesses and how this form of owning can be conceptualized. LÄS MER

  5. 14. Coexistence and Energy Efficiency in Wireless Networks

    Författare :Ioannis Glaropoulos; Viktoria Fodor; Falco Dressler; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Dynamic spectrum access has been recently proposed to increase the utilization of the licensed spectrum bands, and support the constantly growing volumes of mobile traffic in the modern society. At the same time, the increasing demand for wireless connectivity, as a result of the rapid emergence of innovative wireless and mobile services, has led to the deployment of various wireless technologies in the open ISM bands. LÄS MER

  7. 15. Ecological interactions in human modified landscapes : Landscape dependent remedies for the maintenance of biodiversity and ecosystem services

    Författare :Arvid Bolin; Biodiversitet; []
    Nyckelord :Central place foraging; Agriculture; Competition; Ecosystem service; Species coexistence; bumble bees; landscape ecology; Biodiversity; Agri-environment scheme; Central place foraging; jordbruk; konkurrens; landskaps ekologi; humlor; bin;

    Sammanfattning : Modern agricultural practices have led to an intensification of the agricultural landscape which has negatively affected both biodiversity and the ecosystem services it provides. In my thesis I have used ecological theory of optimal foraging to try and explain how landscape structure, landscape composition and agricultural management can explain the loss of biodiversity and how remedies can efficiently be implemented. LÄS MER