In this study, the wake characteristics of an arc blade were measured by the wind tunnel experiment; the characteristics Shorts were defined as the width of the wake, diameter of the vortex, ratio of the vortex scale, and the local lift.The influence of the angle of attack on the aerodynamic noise of the blade was quantitatively predicted by using

This communication analyzes the work carried out for the graphic survey of a case study during its rehabilitation process.For this, Rompers the photogrammetry technique has been used together with an RPAS system for the acquisition of photographs of the property.As a result, a point cloud has been obtained that allows the geometric characterization

With the increasing popularity of social network platforms such as Twitter and Sina Weibo, a lot of malicious Backpacks users, also known as social spammers, disseminate illegal information to normal users.Several approaches are proposed to detect spammers by training a classifier with optimization methods and mainly using content and social follow