Multi-span engineering ropeway design based on parabola theory;

Formulas for calculating the non-stress length of cable for cable-stayed bridges using cate-nary theory and parabola theory are derived in this paper.

This text build with a single aerial ropeway for the basic model,make use of the structure of the beginning start equilibrium type to analisys the difference of catenary,theory and parabola theory,by the two kinds of theorieses comparison to build a reasonable method which single aerial ropeway structure calculation should be choose.

New theory in the front of theoretical basis research of molecular thermodynamics 4: on molecular structure of organic compound and theoretical equation of critical pressure;

New theory in the leading basic research of molecular dynamics 3: theoretical equation for heat of vaporization of liquid compounds at any temperature;

In the leading basic research of molecular thermodynamics new theory 5:semi - metal structural model of organic molecules and theoretical equation of gas viscosity;

2T c -780 ),and according to the rules of semi metal structural theoretic model of organic molecules and the theoretic and experimental results from molecular physics, spectroscopy and matrix method , a new theoretic equation (Eq.

In this study, we analyzed the mechanical interaction of warp and weft yarns in shearing deformation, and established theoretical equations expressing the relationship between the shearing rigidity and fabric structures.