Ruixiang Zhang

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–The evolution of a dynamic walking gait of biped robot is presented in this paper. The gait is generated for a biped robot to walk on flat ground and climb up stairs. For the trajectory based gait generation, various parameters satisfy ZMP criterion and can realize continuous walking. The evolutionary algorithm is used to choose the parameter combinations.(More)
This paper describes an integrated quasi‐ autonomous four‐limbed robot, named Capuchin, which is equipped with appropriate sensing, planning and control capabilities to " free‐climb " vertical terrain. Unlike aid climbing that takes advantage of special tools and/or engineered terrain features, free climbing only relies on friction at the contacts between(More)
–This paper presents the research work on a small size humanoid robot: RoboSapien. The objective of this project is to build a platform for the study of dynamic walking and the artificial intelligence tools. In all, the robot has 17 degrees of freedom and each joint is driven by a DC servo motor. Two DSPs are utilized in the control system. In this paper,(More)
The effect of neoadjuvant chemotherapy on the survival of patients with thoracic esophageal squamous cell carcinomas (ESCCs) remains controversial. The optimal management strategy for resectable ESCCs varies regionally based on local randomized controlled trials. A systematic review and meta-analysis was conducted to re-evaluate this controversial issue.A(More)
All Rights Reserved ii I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. (Jean-Claude Latombe) Principal Adviser I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a(More)
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