Sökning: "promising alternatives"

Visar resultat 11 - 15 av 124 avhandlingar innehållade orden promising alternatives.

  1. 11. In pursuit of next generation photovoltaics : An electronic structure study of emerging solar cell materials

    Författare :Axel Erbing; Michael Odelius; David Scanlon; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Solar cells; computational physics; density functional theory; electronic structure; molecular dynamics; Solceller; beräkningsfysik; täthetsfunktionalteori; elektronstruktur; molekyldynamik; Theoretical Physics; teoretisk fysik;

    Sammanfattning : The development of a new generation of photovoltaic technologies is an important task in order to increase the production of clean energy. Perovskite solar cells, with an exceptionally rapid development over the last decade, have transformed into perhaps the most promising candidate to provide a low-cost alternative to conventional cells. LÄS MER

  2. 12. High volumetric machining strategies for superalloy gasturbine components : Comparing conventional and nonconventional machining methods for efficient manufacturing

    Författare :Jonas Holmberg; Johan Berglund; Anders Wretland; Tomas Beno; Joel Andersson; Sten Johansson; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alloy 718; High volumetric machining; Conventional and Nonconventional machining; Material removal rate; Post processing; surface integrity; Residual stress; Microstructure; Deformation; Manufacturing; Surface and Joining Technology; Bearbetnings-; yt- och fogningsteknik; Production Technology;

    Sammanfattning : There is a strong industrial driving force to find alternative manufacturing technologies in order to make the production of aero engine components of superalloys even more efficient than it is today. Introducing new and nonconventional machining technologies, as well as enhanced utilisation of today's high volumetric manufacturing, allows taking a leap to increase the material removal rate and the productivity. LÄS MER

  3. 13. Reconfiguration Methodology to improve the agility and sustainability of Plug and Produce Systems

    Författare :Pedro Neves; Mauro Onori; Åsa Fasth Berglund; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Production Engineering; Industriell produktion;

    Sammanfattning : The emergence of globalisation, market turbulence and sustainability requirements is challenging production companies to devise new strategies to offer large product diversity, keep low inventories, and timely produce small batches of customised and personalised products. Agile shop-floors that can be promptly deployed and re-configured with minimum integration and programming efforts are perceived as a promising strategy to tackle this problem. LÄS MER

  4. 14. Towards a retro-structural design of degradable aliphatic polyester-based materials

    Författare :Veluska Arias; Ann-Christine Albertsson; Minna Kellomäki; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrolysis; polyesters; polylactide; hydrophobicity; crystallinity; miscibility; nanoparticles; stereocomplex; homocomposites; Kemi; Chemistry;

    Sammanfattning : The increasing amount of accumulated plastic waste has led to a continuous search for degradable materials for use in a variety of applications. This eco-friendly approach contemplates the use of degradable alternatives to the inert polymers (the main components in plastics) used today and further engineering of their degradation pathways. LÄS MER

  5. 15. CO2 Capture through Integration of Aqueous and Immobilized Deep Eutectic Solvents

    Författare :Sahar Foorginezhad; Xiaoyan Ji; Hailong Li; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CO2 capture; Ionic liquid; Deep eutectic solvent; Immobilization; Slurry.; Energiteknik; Energy Engineering;

    Sammanfattning : The growing global concern over rising CO2 emissions and its significant impact on climate change highlight the urgent need for efficient CO2 capture technologies. Among the array of techniques employed for this purpose, chemical absorption stands out, characterized by high capture capacity, promising efficiency, and versatile applicability. LÄS MER