Zobrazeno 51 - 60
of 103
pro vyhledávání: '"Yan-Fei Zhang"'
Publikováno v:
Applied Mechanics and Materials. :929-932
Depended on the continuous development of nanotechnology, many micro-nano positioning platforms have been developed. Considering the actual engineer need, technologies for design of the positioning platform with both large travel and nano scale accur
Publikováno v:
Applied Mechanics and Materials. :654-657
At present, most of the robots’ intelligent level is not as high as needed and they can’t accomplish some special tasks successfully under complicated circumstances. A kind of robot master-slave control system based on LabVIEW is designed, which
Publikováno v:
Advanced Materials Research. :953-956
Redundant parallel robots have been under increasing developments from a theoretical view point as well as for practical applications. Compared with the traditional parallel manipulators, they have such merits of more load, faster speed and higher ac
Publikováno v:
Advanced Materials Research. :870-873
A type of 4-PPPR parallel manipulator is presented. The kinematics model of this mechanism is founded and kinematics solutions of both direct and inverse are given in closed form by means of coordinate transformation. For convenience to analyze the s
Publikováno v:
Advanced Materials Research. :573-576
For some circumstances, it would be extremely dangerous to use direct human labor and then robots are often required to complete those tasks in this kind of environments. Unfortunately, computer control and intelligence are not sufficiently developed
Publikováno v:
Advanced Materials Research. :1540-1543
Singularity is a basic problem for parallel mechanism design because of its many negative influences on the mechanism performances. Traditionally, three kinds of singularities are suitable for analysis of the parallel mechanisms. By considering both
Publikováno v:
Advanced Materials Research. :541-544
Garbage cleaning robot will gather and process most of the garbage under certain circumstance for people. It can economize labor, enhance efficiency and improve the working environment. Unfortunately, most garbage-gathering devices of these mechanism
Autor:
Shu Jiang Liu, Yan Fei Zhang
Publikováno v:
Advanced Materials Research. :1626-1630
We studied the spontaneous crystallization behavior for 60.5SiO2-2.5Al2O3-3P2O5- 18Na2O-16RMgO-16(1-R)CaO system glasses during cooling of melts through changing the relative content of alkaline-earth oxides. Such compositional variation leads to the
Publikováno v:
Applied Mechanics and Materials. 43:97-100
For most transducers, the two kinds of displacement and angular variants can not be captured at the same time. While for the unrestricted object, it often translates and rotates synchronously. For some important or special application fields, it is b
Autor:
Jian Liu, L.M. Mei, Minglei Zhao, Jialiang Zhang, Yan-fei Zhang, Jichao Li, Chunlei Wang, Ruizhi Zhang, Wenbin Su
Publikováno v:
Solid State Sciences. 12:1168-1172
A novel approach was developed to calculate temperature-dependent Seebeck coefficient of heavily doped systems. The electronic density of states (DOS) and Fermi energy were determined and then, using these two parameters, the Seebeck coefficient was