As former Fermatist, the author tried many times to prove Fermat＇s Last Theorem in an elementary way. Just few insights of the proposed schemes partially passed the peer-reviewing and they motivated the subsequent fr...As former Fermatist, the author tried many times to prove Fermat＇s Last Theorem in an elementary way. Just few insights of the proposed schemes partially passed the peer-reviewing and they motivated the subsequent fruitful collaboration with Prof. Mario De Paz. Among the author＇s failures, there is an unpublished proof emblematic of the FLT＇s charming power for the suggestive circumstances it was formulated. As sometimes happens with similar erroneous attempts, containing out-of-context hints, it provides a germinal approach to power sums yet to be refined.展开更多
Genuine interest, research zeal, and visual art expressiveness which are typical of the pre-school period can pose a challenge to every teacher, at the same time, guide them when planning different contents for childr...Genuine interest, research zeal, and visual art expressiveness which are typical of the pre-school period can pose a challenge to every teacher, at the same time, guide them when planning different contents for children to explore and discover. As one of the primary expressing media and an important support when forming concepts, visual art plays an indispensable role in the pre-school period. The following thesis is based on an action research whose key tendencies were focused on establishing children＇s interests in different useful materials and tools while enabling them an autonomous visual art use of these tools and didactical possibilities of the teacher involved. The activities included in the research were fully in line with the Slovenian National Kindergarten Curriculum and the project was carried out in the form of several successive meetings intended for visual art creative activities. All activities in the research were photo-documented while the analysis of the research＇s data was performed based on observation and written notes referring to individual child＇s responses, his or her questions, ideas, and incentives, the course of cognitive and creative process, communication with the peers and teachers and other potential particularities.展开更多
This paper proposes a new coordination method for multi-robot system.The state space for a multi-robot system is constructed according to the task requirements and system characteristics.Reachable statefor the system ...This paper proposes a new coordination method for multi-robot system.The state space for a multi-robot system is constructed according to the task requirements and system characteristics.Reachable statefor the system is constrained by the system s internal and external constraints,under which the task isexecutable if there exists a state transition trajectory from the initial to the goal state in its state space.Ifthe task is realizable,the feasible or the optimal strategy for task execution could then be investigated inthe state space.Otherwise,the task could be modified to be realizable via adjusting system s configura-tions and/or task constraints,which provides critical guidance for system reconstructions.This con-tributes to the designing and planning of the robotic tasks.Experiments of multi-robot formation movementare conducted to show the validity of the proposed method.展开更多
文摘As former Fermatist, the author tried many times to prove Fermat＇s Last Theorem in an elementary way. Just few insights of the proposed schemes partially passed the peer-reviewing and they motivated the subsequent fruitful collaboration with Prof. Mario De Paz. Among the author＇s failures, there is an unpublished proof emblematic of the FLT＇s charming power for the suggestive circumstances it was formulated. As sometimes happens with similar erroneous attempts, containing out-of-context hints, it provides a germinal approach to power sums yet to be refined.
文摘Genuine interest, research zeal, and visual art expressiveness which are typical of the pre-school period can pose a challenge to every teacher, at the same time, guide them when planning different contents for children to explore and discover. As one of the primary expressing media and an important support when forming concepts, visual art plays an indispensable role in the pre-school period. The following thesis is based on an action research whose key tendencies were focused on establishing children＇s interests in different useful materials and tools while enabling them an autonomous visual art use of these tools and didactical possibilities of the teacher involved. The activities included in the research were fully in line with the Slovenian National Kindergarten Curriculum and the project was carried out in the form of several successive meetings intended for visual art creative activities. All activities in the research were photo-documented while the analysis of the research＇s data was performed based on observation and written notes referring to individual child＇s responses, his or her questions, ideas, and incentives, the course of cognitive and creative process, communication with the peers and teachers and other potential particularities.
基金Supported by the National Natural Science Foundation for Distinguished Young Scholars Abroad (No. 60428303)
文摘This paper proposes a new coordination method for multi-robot system.The state space for a multi-robot system is constructed according to the task requirements and system characteristics.Reachable statefor the system is constrained by the system s internal and external constraints,under which the task isexecutable if there exists a state transition trajectory from the initial to the goal state in its state space.Ifthe task is realizable,the feasible or the optimal strategy for task execution could then be investigated inthe state space.Otherwise,the task could be modified to be realizable via adjusting system s configura-tions and/or task constraints,which provides critical guidance for system reconstructions.This con-tributes to the designing and planning of the robotic tasks.Experiments of multi-robot formation movementare conducted to show the validity of the proposed method.
