Sökning: "Feng"

Visar resultat 1 - 5 av 91 avhandlingar innehållade ordet Feng.

  1. 1. Bandgap Engineering of Lead-Free Halide Double Perovskites

    Författare :Fuxiang Ji; Feng Gao; Feng Wang; Niclas Solin; David Mitzi; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Lead-free halide double perovskites; Metal doping alloying; Bandgap engineering; Atomic-level structure; Thermochromism;

    Sammanfattning : Lead-free halide double perovskites (HDPs, A2BIBIIIX6) with attractive optical and electronic features are regarded as one of the most promising alternatives to overcome the toxicity and stability issues of lead halide perovskites. They provide a wide range of possible combinations and rich substitutional chemistry with interesting properties for various optoelectronic devices. LÄS MER

  2. 2. Combined production of edible mushrooms and biofuels from lignocellulosic residues

    Författare :Feng Chen; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Forest residues, wood-processing by-products and other lignocellulosic materials are promising renewable resources for bioconversion to advanced biofuels such as cellulosic ethanol. Increased production of biofuels from lignocellulosic materials would allow reducing environmental problems caused by the use of fossil resources while supporting development of bioeconomy. LÄS MER

  3. 3. Geodetic total station for measuring geometry of discontinuities atexposed rock faces

    Författare :Quanhong Feng; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 4. Craft production in the Kingdom of Crystal (Glasriket) and its visual representation : Constructing authenticity in cultural/marketing production

    Författare :Songming Feng; Adele Berndt; Mart Ots; Ian Woodward; Karin Ekström; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Glasriket; the Kingdom of Crystal; glass; craft; authenticity; cultural production; photography; image; semiotics; practice theory; materiality;

    Sammanfattning : Authenticity is a core concept and phenomenon in contemporary marketing, as both marketers and consumers seek the authentic. Individuals, companies, and industries all work to establish and accomplish authenticity for themselves and related stakeholders. LÄS MER

  5. 5. Adaptive finite element methods for parameter estimation problems in partial differential equations

    Författare :Tao Feng; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; parameter estimation; ¯nite element approximation; adaptive ¯nite element methods; a posteriori error estimates; least squares.; MATHEMATICS; MATEMATIK;

    Sammanfattning : Physical and chemical phenomena are often described by a system of partial di®erential equations. These equations usually involve unknown parameters, which cannot be measured directly but which can be adjusted to make the model predictions match the observed data. LÄS MER