With more severe resource scarcity and environmental problems, the evaluation of circular economy in microcosmic level has become the focus of the academic world. Based on the concept of circular economy, this paper not only structures the evaluation index system of circular economy for iron and steel enterprises, builds the evaluation model of circular economy for iron and steel enterprises ba...

To enable shaped preforms to be produced accurately, it is essential to have a full understanding of the geometrical properties of the structure and the effects that the various shaping techniques produce. This publication discusses the technique of threedimensional shaping and its affects on the geometrical dimensions of a hemispherical form. In the paper the calculation procedures employed to...

Since the seminal production of Noblit and Hares’ book Meta-ethnography published in 1988, the quest for an optimal route to synthesising qualitative evidence has gained momentum. Theoretical arguments in this area range diametrically from the impossibility of progressing knowledge based on qualitative evidence in the absence of such synthesis, to the impossibility of synthesising knowledge tha...

The relationships between geological features and rockmass behaviors under complex geological environments were investigated based on multiple intelligence classifiers. Random forest, support vector machine, bayes’ classifier, fisher’s classifier, logistic regression, and neural networks were used to establish models for evaluating the rockmass stability of slope. Samples of both circular failu...

This study explores the design possibilities with knitted architectural textiles subjected to wind. The purpose is investigate how such could be applied alter usual static expression of exterior and urban elements, as facades windbreaks. investigations were made on a manual knitting machine CNC (computer numerically controlled) flat machine. Four techniques - tuck stitch, hanging stitches, fals...

Compared with the traditional needle driving method, hybrid maglev is a new weft knitting machine technology, which alleviates problems of noise, heat, and breakage. However, in structure arrays, magnetic disturbance between permanent magnet needles leads to unstable control. Therefore, this paper attempts solve problem through performance analysis driving. Based on structure, force distributio...

In order to solve the problem of reciprocating motion in no beam supported mining machines, putting energy saving as a starting point in Coal Bed Methane (CBM) exploitation, this paper designs a completely non-circular gear automatic reversing vertical drainage machine based on the theory of non-circular gear transmission. In the field of CBM exploitation, the use of non-circular gears is an at...