Sökning: "extend"

Visar resultat 1 - 5 av 1188 avhandlingar innehållade ordet extend.

  1. 1. Circular Business Models that Extend Product Value : Going Beyond Recycling to Create New Circular Business Opportunities

    Författare :Katherine Whalen; Internationella miljöinstitutet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; circular business model; product life extension; obsolescence; circular economy; business model; reuse; repair; refurbishment; sustainability strategies; sustainability education;

    Sammanfattning : Over the past ten years, significant industry, policy, and scientific attention has been given to the ‘circular economy’, which aims to create a more sustainable society by decoupling economic growth from resource consumption. Firms are expected to play a significant role in the shift to a circular economy model by implementing circular business models that encourage prolonged use of products, components, and materials. LÄS MER

  2. 2. Exploring using complexity thinking to extend the modelling of student retention in higher education physics and engineering

    Författare :Jonas Forsman; Cedric Linder; Staffan Andersson; Richard Mann; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; complexity thinking; student retention; network theory; higher education; physics and engineering education; Other physics; Övrig fysik; Physics with specialization in Physics Education; Fysik med inriktning mot fysikens didaktik;

    Sammanfattning : .... LÄS MER

  3. 3. Transformation Optics for Controlling DC Magnetic Field

    Författare :Fei Sun; Sailing He; Hao Yang; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Transformation magneto-statics; magnets; DC magnetic field; Electrical Engineering; Elektro- och systemteknik; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : Based on the form-invariant of Maxwell’s equations under coordinate transformations, we extend the theoryof transformation optics to transformation magneto-statics, which can design magnets through coordinatetransformations. Some novel DC magnetic field illusions created by magnets (e.g. LÄS MER

  4. 4. Studies in respondent-driven sampling : Directed networks, epidemics, and random walks

    Författare :Jens Malmros; Tom Britton; Fredrik Liljeros; Erik Volz; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Mathematical Statistics; matematisk statistik;

    Sammanfattning : Respondent-driven sampling (RDS) is a link-tracing sampling methodology especially suitable for sampling hidden populations. A clever sampling mechanism and inferential procedures that facilitate asymptotically unbiased population estimates has contributed to the rising popularity of the method. LÄS MER

  5. 5. Classification of plethories in characteristic zero

    Författare :Magnus Carlson; Tilman Bauer; Lars Hesselholt; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Plethories; Witt vectors; ring schemes; Mathematics; Matematik;

    Sammanfattning : We classify plethories over fields of characteristic zero, thus answering a question of Borger-Wieland and Bergman-Hausknecht. All plethories over characteristic zero fields are linear, in the sense that they are free plethories on a bialgebra. LÄS MER