Sökning: "Jiayi Zhou"

Hittade 2 avhandlingar innehållade orden Jiayi Zhou.

  1. 1. Experimental Investigation of Cavitation-Bubble-Induced Atomization

    Författare :Jiayi Zhou; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cavitation bubble; liquid atomization; shadowgraph;

    Sammanfattning : Improving the efficiency and lowering the emissions of internal combustion engines (ICE) has been drawing increased attention because climate change caused by greenhouse gases and the need to reduce emission harmful to human health, and stricter legislation on the emissions from liquid-fueled transportation is implemented. Design of the liquid fuel atomizer, which atomizes the fuel delivered into the combustion chamber by the fuel injection system, is important because a good atomization, which facilitates the evaporation of fuel and improves the fuel-air mixture, leads to higher efficiency and lower emissions of ICE. LÄS MER

  3. 2. Producing Food, Security, and the Geopolitical Subject

    Författare :Jiayi Zhou; Eva Lövbrand; Malin Mobjörk; Björn-Ola Linnér; Jonna Nyman; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Food security; Russia; United Nations; Security; Discourse; Geo-politics;

    Sammanfattning : This study uses food as a lens through which to empirically and theoretically problematize the concept of security. Food – its supply, provision, and access – is situated at the center of several interconnected crises, from environmental and climatic upheaval to growing geopolitical turbulence and great power competition. LÄS MER