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Shijiazhuang, China

The Hebei Institute of Physical Education is a sports institute in Shijiazhuang, Hebei, China. Founded in 1984, the institute merged with the Hebei Sports School in 2002. It currently has about 4,700 students and a teaching staff of 450, and offers majors in physical education, sports training, social sports, traditional national sports, human body science, English, and dance. The institute is run under the aegis of the provincial government. Wikipedia.


Liu P.,Northeastern University China | Miao H.,Hebei Institute of Physical Education
Applied Mechanics and Materials | Year: 2010

An unconstrained optimization model, applicable to radial deviation measurement, is established for assessing cylindricity errors by the minimum circumscribed cylinder evaluation. The properties of the objective function in the optimization model are thoroughly investigated. On the basis of the modern theory of convex functions, it is strictly proved that the objective function is a continuous and non-differentiable and convex function defined on the four-dimensional Euclidean space R 4. Therefore, the minimal value of the objective function is unique and any of its minimal point must be its global minimal point. Thus, any existing optimization algorithm, so long as it is convergent, can be used to solve the objective function to get the wanted values of cylindricity errors by the minimum circumscribed cylinder assessment. An example is given to verify the theoretical results presented. © (2010) Trans Tech Publications. Source


Liu P.,Northeastern University China | Miao H.,Hebei Institute of Physical Education
Advanced Materials Research | Year: 2011

An unconstrained optimization model is established for assessing roundness errors by the maximum inscribed circle method based on radial deviation measurement. The properties of the objective function in the optimization model are thoroughly researched. On the basis of the modern theory on convex functions, it is strictly proved that the objective function is a continuous and non-differentiable and convex function defined on the two-dimensional Euclidean space. The minimal value of the objective function is unique and any of its minimal point must be its global minimal point. Any existing optimization algorithm, so long as it is convergent, can be used to solve the objective function in order to get the wanted roundness errors by the maximum inscribed circle assessment. One example is given to verify the theoretical results presented. © (2011) Trans Tech Publications, Switzerland. Source


Liu P.,Northeastern University China | Miao H.Y.,Hebei Institute of Physical Education
Advanced Materials Research | Year: 2011

An unconstrained optimization model is established for assessing roundness errors by the minimum circumscribed circle method based on radial deviation measurement. The properties of the objective function in the optimization model are thoroughly researched. On the basis of the modern theory on convex functions, it is strictly proved that the objective function is a continuous and non-differentiable and convex function defined on the two-dimensional Euclidean space. The minimal value of the objective function is unique and any of its minimal point must be its global minimal point. Any existing optimization algorithm, so long as it is convergent, can be used to solve the objective function in order to get the wanted roundness errors by the minimun circumscribed circle assessment. One example is given to verify the theoretical results presented. © 2011 Trans Tech Publications. Source


Zhao Q.Q.,Hebei Institute of Physical Education
Applied Mechanics and Materials | Year: 2014

In the teaching training and competition of aerobics, the music exists throughout, and relies on each other; and so introduced the hardware and software environment, the corresponding production steps and methods of operation in aerobics computer music production, thus providing a certain reference to aerobics music production and study. © (2014) Trans Tech Publications, Switzerland. Source


Zhang G.,Hebei Institute of Physical Education
Applied Mechanics and Materials | Year: 2014

Because volleyball athletes’ lower body and tendon strength all carry out overload operation in the intense training process, its long time exercise will bring pain for volleyball athletes. Therefore, to carry out lower body muscle dynamics research and its electromyography on volleyball players' muscle EMG changes analysis. While the establishment of volleyball players' lower body muscle kinetic model equations, to analyze of the muscle state characteristics from the dynamic perspective on the volleyball player batting process. And to establish the interaction between the lower body muscle and tendon, which can provide reference for protecting volleyball athletes’ lower body muscles. © (2014) Trans Tech Publications, Switzerland. Source

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