The characteristic that multiple limb manipulation systems can resist disturbance external forces without relying on the feedback control of joint torques, called the robustness, has been addressed by several resear...The characteristic that multiple limb manipulation systems can resist disturbance external forces without relying on the feedback control of joint torques, called the robustness, has been addressed by several researchers. Based on their results, a further study of robustness is presented in this paper. By decomposing the space of external forces into two subspaces, the necessary and sufficient condition for a system to have robustness is given and a definition of robustness which is applicable to any multiple limb systems is also proposed. For the purpose of the evaluation of robustness, a new quality measure — critical disturbance external force and its algorithm are put forward. Finally, two examples of robustness analysis are presented.展开更多
Dear Editor,Plant expression vectors are instrumental tools used to assess plant functional genomics and facilitate breeding improvements.Plant viruses may contain exogenous genes for replication and systemic movement...Dear Editor,Plant expression vectors are instrumental tools used to assess plant functional genomics and facilitate breeding improvements.Plant viruses may contain exogenous genes for replication and systemic movement in host plants,allowing them to be engineered into plant expression vectors for systemic and enhanced gene expression manipulation(Abrahamian et al.,2020).展开更多
文摘The characteristic that multiple limb manipulation systems can resist disturbance external forces without relying on the feedback control of joint torques, called the robustness, has been addressed by several researchers. Based on their results, a further study of robustness is presented in this paper. By decomposing the space of external forces into two subspaces, the necessary and sufficient condition for a system to have robustness is given and a definition of robustness which is applicable to any multiple limb systems is also proposed. For the purpose of the evaluation of robustness, a new quality measure — critical disturbance external force and its algorithm are put forward. Finally, two examples of robustness analysis are presented.
基金supported by the Biological Breeding of Early Maturing and Disease Resistant Cotton Varieties(grant no.2023ZD04041)the China Agricultural Research System(grant no.CARS-15-06)+1 种基金the Natural Science Foundation of Henan Province(grant no.232300421041)the Nanfan Special Project(grant nos.YBXM2316 and YBXM2441).
文摘Dear Editor,Plant expression vectors are instrumental tools used to assess plant functional genomics and facilitate breeding improvements.Plant viruses may contain exogenous genes for replication and systemic movement in host plants,allowing them to be engineered into plant expression vectors for systemic and enhanced gene expression manipulation(Abrahamian et al.,2020).
