Sökning: "Jia Sun"

Hittade 4 avhandlingar innehållade orden Jia Sun.

  1. 1. Characterization of regulatory factors controlling tip growth in Nicotiana tabacum pollen tubes

    Författare :Jia Sun; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Rho GTPases constitute a family of highly conserved signaling proteins with key functions in the regulation of cellular polarization and polar cell growth. In plants, Rho GTPases are represented by a plant specific subfamily referred to as Rac/Rop GTPases. LÄS MER

  3. 2. Peptide and non-peptide biomarkers of mortality in patients with advanced chronic kidney disease

    Författare :Jia Sun; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Over the last decade, multiple studies have attempted to identify better risk prediction tools specific to the chronic kidney disease (CKD) population. In many cases, these studies have evaluated the use of various peptide biomarkers as prediction tools. LÄS MER

  4. 3. Rotating Structure Modeling and Damping Measurements

    Författare :Jia Sun; Leif Kari; Damian Vogt; Ulf Orrenius; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acoustics; Akustik; Vehicle engineering; Farkostteknik; Järnvägsgruppen - Ljud och vibrationer; Järnvägsgruppen - Ljud och vibrationer;

    Sammanfattning : The structural damping is of importance to suppress the vibration amplitude of compressor blades rotating at high angular velocity under a high cycle impact. To avoid the appearance of the high cycle fatigue (HCF), damping materials may be applied to the compressor blades. LÄS MER

  5. 4. Vibration Characteristics and Structural Damping of Rotating Compressor Blades

    Författare :Jia Sun; Leif Kari; Jean-François Deü; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Nowadays, the increasing demand on the high efficiency energy, low fuel consumption and environment friendly leads the turbomachinery to be operating under a critical high rotation speed at high temperature and pressure. This severe operation condition will definitely increase the probability of the occurrence of the high cycle fatigue. LÄS MER