the metal sheets play an important role in the mechanical design, particularly in the aerospace structures. the rivet connections are frequently used to connect these sheets. the riveting quality greatly influences the rupture of the rivet and the sheet. the various parameters affect the quality of this operation. in this paper, the optimization of the parameters contributing to the riveting qu...

background: municipal solid waste (msw) is the natural result of human activities. msw generation modeling is of prime im­portance in designing and programming municipal solid waste management system. this study tests the short-term pre­diction of waste generation by artificial neural network (ann) and principal component-regression analysis. methods: two forecasting techniques are presented in...

background there are several studies in the literature investigating factors which can induce non-alcoholic fatty liver disease (nafld) in different populations. however, the existing literature lacks powerful studies addressing the factors which may predict the severity of nafld. objectives in the current study, we aimed to evaluate factors independently associated with liver echogenicity in a...