Investigation of mixing characteristics of gaseous kerosene scramjet combustor with an oxygen-supplemented strut

The mixing state of the fuel determines whether the scramjet combustor can work with high performance.The flow PUMP 1500ml field structure and mixing characteristics of the supersonic combustor are studied by using large eddy simulation.The combustor is equipped with struts and uses gaseous kerosene as fuel.The particularity of the strut is that a

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Geschichte der Natur bei Alexander von Humboldt

Article in German, Abstracts in English, German and French.This article analyses the importance of an historical view of nature in the works of Alexander von Humboldt.In several of his first writings, Humboldt seems to outline the importance of what one may call history of nature.But even before Flower pots his famous American travel, his position

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Heterologous production of the adhesin LIC13411 from pathogenic Leptospira facilitates binding of non-pathogenic Leptospira in vitro and in vivo

Leptospirosis is an important cause of morbidity and mortality worldwide.Disease severity ranges from asymptomatic colonization to widespread hemorrhage and multiorgan dysfunction.The causative agents, Leptospira spp., are zoonotic Gram-negative spirochetes.One important step in pathogenesis is binding of bacterial adhesins to host components.Previ

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