Sökning: "Sheng Yang"

Hittade 2 avhandlingar innehållade orden Sheng Yang.

  1. 1. Inclusion Behaviour under a Swirl Flow in a Continuous Casting Process

    Författare :Yang Ying; Pär Jönsson; Dong-Yuan Sheng; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inclusion behaviour; swirl flow; rotating magnetic field; electromagnetic swirl flow generator; full type; half type; submerged entry no zzle; mold;

    Sammanfattning : A swirl flow generated in a submerged entry nozzle (SEN) can effectively improve a flow pattern and heat transfer in a continuous casting process by using the methods of “swirl blade type” and “electromagnetic type”. In order to obtain a further in-depth understanding with respect to the effect of a swirl flow on a continuous casting process, the inclusion behaviour in a SEN and a mold was studied in the present work. LÄS MER

  3. 2. Interference Alignment with Imperfect Channel Knowledge and Secrecy Constraints

    Författare :Zhao Wang; Mikael Skoglund; Ming Xiao; Sheng Yang; KTH; []
    Nyckelord :Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : In this thesis, the degrees of freedom (DOF) of wireless networks are studied with imperfect channel state information at transmitters (CSIT) and/or secrecy constraints. Different interference alignment schemes are proposed to establish the DOF lower bound for a variety of wireless networks. LÄS MER