Sökning: "Yan Ma"

Hittade 3 avhandlingar innehållade orden Yan Ma.

  1. 1. Quantifying hydroclimatic change impacts on infectious diseases : Signals and geographies from local to global scale

    Författare :Yan Ma; Georgia Destouni; Zahra Kalantari; Arvid Bring; Rita Colwell; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Hydroclimatic change; infectious diseases; climate sensitivity; disease geography; quantitative study; scoping review; naturgeografi; Physical Geography;

    Sammanfattning : Hydroclimatic change has the potential to directly or indirectly increase the occurrence and expand or shift the geographical range of infectious diseases. This may pose particular threats in the Nordic-Arctic Region, where warming is more rapid than in other parts of the world, but the climate sensitivities of various infectious diseases still remain to be investigated in this and other regions. LÄS MER

  3. 2. Study on Metallic Melt Coolant Interactions and Debris Bed Formation in a Water Pool

    Författare :Yan Xiang; Weimin Ma; Sevostian Bechta; Andrei A. Komlev; Michael Buck; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Severe accident; fuel coolant interactions; metallic melt; jet fragmentation; debris bed; CLSVOF.; Svåra haverier; interaktioner mellan bränsle och kylmedel; metallsmälta; jetfragmentering; grusbädd; CLSVOF; Kärnenergiteknik; Nuclear Engineering;

    Sammanfattning : To assess corium coolability during severe accidents of LWR, significant number of studies have been conducted previously to investigate the characteristics of debris beds formed from FCI due to fragmentation of molten corium and settlement of the fragments in a water pool. However, their focus has been placed on the oxidic component (UO2/ZrO2) of corium, while little attention has been paid to the debris bed formation due to FCI of the metallic component (Zr/Fe) of corium. LÄS MER

  4. 3. Functional Metal Oxide Materials Deposited by Inkjet Printing Technique

    Författare :Yan Wu; Lyubov Belova; Gillian Gehring; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Inkjet printing; photoconductivity; ZnO; Al-ZnO; composite; electron transfer; CdS; field effect transistor; photosensitive; RT do-ferromagnetism; Mn-doped ZnO; MgO; Materials science; Teknisk materialvetenskap;

    Sammanfattning : This thesis presents a comprehensive study of the intrinsic room temperature ferromagnetism in 85 to 100nm thin films produced by in situ deposition of industrially important pristine MgO and ZnO by inkjet printing. It is suggested that the observed long range magnetic order, the so-called do magnetism in these oxides arises from cation vacancies. LÄS MER