—A wheelchair with omni-directional wheel is introduced in this article. Two kinds of omni-directional wheel, Mecanum wheel and Trans wheel, are illustrated and their motion principles were analyzed. Virtual Reality Modeling Language (VRML) is adopted to implement the real-time customization and motion simulation. In the real-time customization process, the… (More)
The measure analysis and QA system for gamma knife dose field and its pivotal techniques are described in this paper. By using our own measuring tools and analysis software, we have made a testing analysis about the HuaYuan Gamma Knife dose field with a satisfactory result.