Experimental and Numerical Study on the Performance Change of a Simple Propeller Shape Using the Coanda Effect

In this study, a jet injection propeller was designed to increase its efficiency, and the results were compared by open water tests and numerical computations.Also, Input Jack Assembly the change in shape of the slit and injection volume conditions, which are difficult to perform experiments with, were analyzed through computations.The jet injected

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CC-MRSJ:Cache Conscious Star Join Algorithm on Hadoop Platform

A cache-conscious MapReduce star join algorithm was presented,each column of fact table was separately stored,and dimension table was divided into Eye Ointment several column families according to dimension hierarchy.Fact table foreign key column and corresponding dimension table was co-location storage,thus reducing data movement in the join proce

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