Search for dissertations about: "Yan Liu"

Showing result 1 - 5 of 8 swedish dissertations containing the words Yan Liu.

  2. 1. Life Prediction and Mechanical Behavior of Thermal Barrier Coatings

    Author : Yan Liu; Materialteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stress intensity factors; Macro-cracks; Micro-cracks; Mechanical behaviour; Thermal barrier coatings; Life prediction; Material technology; Materiallära; materialteknik;

    Abstract : Delamination and spallation of thermal barrier coating (TBC) systems, used in hot parts of gas turbines, have been studied with respect to thermal fatigue. TBCs with and without pre-existing cracks were investigated. Thermal shock tests were performed until coating spallation. READ MORE

  4. 2. New biodegradable polymers from renewable resources

    Author : Yan Liu; KTH; []
    Keywords : ;

    Abstract : High molecular weight poly(ester-carbonate)s have beenprepared by a two-step chain-extension reaction performed onoligomeric αω-bishydroxyl-terminatedpoly(1,3-propylene succinate).αω-Bishydroxyl-terminated copolymeric oligomers of1,3-propylene succinate/1,4-cyclohexanedimethylene succinatewere obtained by thermal polycondensation of1,3-propanediol/1,4-cyclohexanedimethanol/succinic acidmixtures having different composition, and subsequently chainextended using phosgene as coupling agent, which leads toaliphatic/alicyclic copoly(ester-carbonate)s. READ MORE

  5. 3. Ride The Wind : Symbiotic Business Model Innovation for the Chinese Wind Power Industry

    Author : Lihua Liu; Mike Danilovic; Maya Hoveskog; Susan Lijiang Sun; Bingwen Yan; Högskolan i Halmstad; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Symbiotic Business Model; Business Model Innovation; Wind Power Innovation; China; Goldwind; 共生的商业模式，商业模式创新，中国，风电行业创新，金风科技;

    Abstract : China has become one of the world’s leading countries in renewable energy, particularly in wind power. Goldwind Science and Technology has become not only the largest wind turbine manufacturer in China, but also one of the largest in the world. READ MORE

  6. 4. State Estimation of Lithium-ion Batteries

    Author : Xiaolei Bian; Longcheng Liu; Jinying Yan; Huazhen Fang; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lithium-ion battery; State of charge; State of health; Model-based method; Extended Kalman filter; Filter tuning; Fusion model; Chemical Engineering; Kemiteknik;

    Abstract : To guarantee the safety operation, the key states of lithium-ion battery, e.g., the state of charge and the state of health, must be estimated and monitored accurately. This thesis is mainly to develop models and algorithms to accurately and robustly estimate the key battery states, based on the available measurements i. READ MORE

  7. 5. Oxidation and Corrosion of New MCrAlX Coatings : Modelling and Experiments

    Author : Kang Yuan; Ru Lin Peng; Xin-Hai Li; Sten Johansson; Yan-Dong Wang; Robert Vaβen; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : MCrAlY coatings (“M” for Ni and/or Co) are widely used for the protection of superalloy components operated at high temperatures such as in the hot sections of gas turbines. The exposure to high temperature can cause coating degradation due to oxidation or hot corrosion at the coating surface. READ MORE