Special class of surfaces, two-axial surfaces of revolution created by the Euclidean metric transformation of a simultaneous revolution about two different axes, is presented in the paper. Three specific subclasses of surfaces are classified with respect to the superposition of the two axes 1o, 2o of revolution. There are defined several types of two-axial surfaces of revolution specifying the ...

Ten normal adult subjects were tested under a wide range of combinations of stride length and stride frequency. Both longitudinal and vertical accelerations of the body increased with velocity, while stride frequency to stride length ratio (SF/SL) had little effect. The peak-to-peak amplitude of the forward velocity (V) decreased with SF/SL, but at constant SF/SL remained essentially unchanged ...

1 Introduction 3 elbridge gerry's salamander The word gerrymander describes a distinctively (albeit not uniquely) American practice, that of redrawing district lines to achieve partisan (or other) advantage. The word also has a distinctively American etymology, dating back to Elbridge Gerry's term as governor of Massachusetts (1810–1812), when political observers made sport of a district drawn ...

Through her literary works, Nicaraguan poet, author, and revolutionary Gioconda Belli employs graphic images of sex and the female body in an effort to empower women and stir up a revolution against inequality in the realms of sexuality, reproductive health, and politics. A woman who is highly in tune with her sexual needs, Belli has an inclination toward eroticism in her writing, which she use...

The orbital motion of the Sun has been linked with solar variability, but the underlying physics remains unknown. A coupling of the solar axial rotation and the barycentric orbital revolution might account for the relationships found. Some recent published studies addressing the physics of this problem have made use of equations from rotational physics in order to model particle motions. Howeve...

the paper, first, reviews the development of social welfare issue and then investigates how primary welfare policy and social insurance has been formulated and accepted in europe. it is argued that social events which caused by industrialization and urbanization led to formation of social welfare and welfare state. eleven resources, in iran, have been known as welfare approaches and produced sp...

The article is devoted to the research on process of knitted fabrics frictional interaction with surface a human body. We established formulas for calculation friction coefficients cylindrical and arbitrary surfaces revolution, obtained as result body approximation. investigated textile samples prototypes segments made solid polymer base medical purposes silicone. study was carried out differen...

This paper addresses the problem of recovering the 3D shape of a surface of revolution from multiple uncalibrated perspective views. In previous work, we have exploited the invariant properties of the surface of revolution and its silhouette to recover the contour generator and hence the meridian of the surface of revolution from a single uncalibrated view. However, there exists one degree of f...