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Visar resultat 1 - 5 av 89 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Analysis and Evaluation of Innovative Aero Engine Core Concepts

    Författare :Lei Xu; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; intercooled recuperated cycle; intercooler; intercooled cycle; multidisciplinary optimization; turbofan; innovative core; variable core cycle; thermal efficiency; aero engine;

    Sammanfattning : Turbofan engines, which power the majority of the modern aircraft today, have achieved such a high maturity that small improvements of the engine performance requires a large investment. More innovative technologies, including those related to the engine cores, become increasinglyattractive due to the high fuel price in recent years as well as the strict regulations on emissions. LÄS MER

  3. 2.

    Författare :Maria Elmquist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NPD processes; innovation; absorptive capacity; R D; innovative capabilities; generative capacity.; innovative concepts;

    Sammanfattning : Enabling innovation Exploring the prerequisites for innovative concepts in R&DMaria ElmquistDivision of Project ManagementChalmers University of TechnologyAbstractThis thesis deals with the prerequisites for innovative concepts to impact NPD processes in large firms R&D. Based on empirical data, mainly from the automotive and pharmaceutical industries, the aim is to shed light on the actual practices of early phases of NPD, investigating the interface between innovative activities and planned development projects. LÄS MER

  4. 3. Innovatie Core Concepts for Future Aero Engines

    Författare :Lei Xu; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aero engine; CFD; variable flow core; system performance; statorless turbine; innovative core; intercooler; SFC;

    Sammanfattning : .... LÄS MER

  5. 4. Innovationsmiljöer i bronsålderns samhälle och idévärld : kring ny teknologi och begravningsritual i Västergötland

    Författare :Eva Weiler; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; megaliths; bronze; moulds; technology; innovation; communication; distribution; ideology; personified symbols; two-dimensional pictures; burial rites; Fornlämningar; Gravar; Bronsarbeten; Gravskick-- Sverige -- Västergötland; Sverige-- Västergötland -- Småland -- Skåne -- Halland;

    Sammanfattning : The aim of this thesis is to elucidate on the factors that lay behind general occurrences in society that diversely develop according to the variance in social and cultural backgrounds. The thesis encompasses the period between 2000-500 BC and concentrates on the effects of the introduction of a new technology (metal working) and new burial rites on the society in SW Sweden (Västergötland). LÄS MER

  7. 5. Reuse of principle solution elements in conceptual design : an information model for concepts in systematic design

    Författare :Sören Wilhelms; Linköpings universitet; []
    Nyckelord :conceptual design; functional modelling; constraint-based design; design reuse; VDI 2222; product modelling; design support; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Product development is an important activity in engineering design, and much of the competitiveness in high-salary countries depends on the ability to develop innovative products with acceptable time to market.The early phase of a systematic design process, namely conceptual design, during which the principle solution for a product is conceived, is of high importance for the later success of products. LÄS MER