关键词： Educational robotics   Computer science education   Formal learning   Teacher professional development   Elementary education  

摘要： Educational Robotics (ER) has the potential to provide significant benefits to education, provided an increase in outreach by transitioning from the extra-curricular initiatives in which ER has thrived to formal education. As Computer Science (CS) Education is undergoing curricular reforms worldwide, the present study addresses the case of a Digital Education reform that included ER as a means to teach core CS concepts. Approximately 350 teachers from the first four grades of primary school participated in a mandatory two-year continuing professional development (CPD) program. The first year of the program was dedicated to CS and introduced teachers to CS Unplugged (CSU) and Robotics Unplugged (RU) activities. As such, we analyse the interplay between these activities and focus on teachers' voluntary adoption of the proposed content in classrooms. This is complemented by an analysis of their perception and recommendation of ER. The findings highlight three main points. Firstly, ER benefits from the integration in the CS CPD, as this provides the necessary traction to introduce ER into teacher practices (the teachers freely devoted 2275 h to ER activities in their classrooms, over two years). Secondly, the presence of ER activities in the CS-CPD allows a higher proportion of teachers to adopt the CS content, as there are teachers that favour one type of activity over the other. Finally, the globally positive perception of ER registered in this study is relevant for two reasons: teachers were not voluntarily participating in the CPD, and results did not differ between pioneers and novices.

关键词： Digital twins   Artificial intelligence   Machine learning technology   Ankle axis   Tibiotalar joint   Robotics   Total ankle arthroplasty   Geodesic axis of the ankle  

摘要： Purpose Axial alignment of the talar implant in total ankle arthroplasty remains a major issue, since the real axis of motion of each patient is impossible to determine with usual techniques. Further knowledge regarding individual axis of motion of the ankle is therefore needed. Material and methods Therefore, digital twins, artificial intelligence, and machine learning technology were used to identify a real personalized motion axis of the tibiotalar joint. Three-dimensional (3D) models of distal extremities were generated using computed tomography data of normal patients. Digital twins were used to reproduce the mobility of the ankles, and the real ankle of the patients was matched to the digital twin with machine learning technology. Results The results showed that a personalized axis can be obtained for each patient. When the origin of the axis is the centre of mass of the talus, this axis can be represented in a geodesic system. The mean value of the axis is a line passing in first approximation through the centre of the sphere (with a variation of 3 mm from the centre of the mass of the talus) and through a point with the coordinates 91.6 degrees west and 7.4 degrees north (range 84 degrees to 98 degrees west;- 2 degrees to 12 degrees north). This study improves the understanding of the axis of the ankle, as well as its relationship to the possibility to use the geodesic system for robotic in ankle arthroplasty. Conclusion The consideration of a personalized axis of the ankle might be helpful for better understanding of ankle surgery and particularly total ankle arthroplasty.

关键词： Artificial intelligence   Robotics   Hotel   Hospitality   Dubai   Smart technology   Smart tourism  

摘要： The growth of technology has resulted in the use of state-of-the-art systems such as artificial intelligence (AI) and robot-based applications and services in the hotel industry. Recently, there has been some discussion on the adoption of such technologies and their impact on hotels' operational costs as well as the quality of service to customers. Considering the importance of these new technologies, this paper investigates the trend related to the adoption of AI and robotics in the hotel industry. For this purpose, we interviewed senior hotel asset managers using an in-depth case study method. The context is Dubai-based hotels as Dubai is already established as one of the premier smart cities of the world (Khan et al.,2017). The TOE framework was used, and three domains were investigated: technology, organization, and environment to expose the underlying factors effecting AI adoption. The findings expose the factors that influence the adoption of AI and robotics in hotels. This study is one of early attempts to investigate the full spectrum of AI in relation to the hotel industry while detailing how its adoption could be effectuated.

关键词： 素養導向課程設計   設計思考   樂高機器人學習   學習情境之安排  

摘要： 本研究以108课纲科技领域领纲为桃园市某国中体育班的创客新手们，发展乐高机器人素养导向课程，藉由混合研究方法探讨不同学习情境下的鹰架工具，如何促进创客新手们的机器人领域学习及设计思考表现。於新手学习阶段中，藉由ARCS（attention, relevance, confidence, & satisfaction）探究式教材、口头提问等鹰架工具，引导创客完成任务的问题拆解；於小组创造力设计阶段中，藉由後设思考学习单的反思鹰架来促进组内产品设计上的互动与共识，进而完成高层次目标的学习表现。本研究透过素养导向课程、鹰架工具之设计，於机器人协作学习提出教学、研究之讨论与建议。

摘要： After Yang is a beautiful, thoughtful movie, evoking a future where humans learn from androids, finds Davide Abbatescianni

关键词： 动力学   摩擦   辨识  

摘要： 机器人动力学模型的辨识方法往往涉及多个参数变量,在控制应用中步骤繁琐,实施难度大。鉴于此,提出了一种水平机器人动力学模型简化的方法。通过拉格朗日原理建立水平机器人完整的动力学模型;采集本体轨迹和电流实时数据,通过理论的机械惯量参数,采用最小二乘法辨识本体的摩擦/转子惯量系数,最后进行了实验效果的验证。通过此方法,可降低动力学参数辨识过程的复杂度,可用于估算轨迹规划中的电机扭矩分布情况,从而便于优化轨迹处理。

关键词： 教育研究机构   智能机器人   中小学   人工智能课程   教具   教学效果   青少年   实验小学  

摘要： 人工智能教育是什么?人工智能课程怎么上?用哪些器材、教具才能达到更好的教学效果?5月29日,"红心向党创新报国"首届中小学人工智能课程建设论坛暨青少年智能机器人竞赛在长沙市麓山兰亭实验小学举行,来自学校和教育研究机构的专家学者以及创业精英齐聚一堂,从产、学、研、教、评等方面入手,共同探讨中小学人工智能课程建设实际问题的系统解决方案。

关键词： 协作式机器人   机器人学   课程实验   创新实践能力  

摘要： 协作式机器人作为一种新型的机器人,在各个领域得到广泛的应用,在面向机械类本科的机器人学课程中,以实际生产为出发点,将协作式机器人实验教学平台应用到课程实验教学中。采用监督考核机制,开展基础理论验证实验、研究型创新实验和综合类实践项目.协作式机器人实验教学平台为学生深化理解课程理论知识,培养创新实践能力提供了重要的保障。

关键词： 并联机器人   SolidWorks   ANSYS   动力学分析  

摘要： 为了解决传统生产模式手工人工成本高、生产效率低、人工安全等问题,本文基于四自由度高速抓取新型并联机器人的结构特点,利用SolidWorks软件搭建并联机器人的三维模型,使用ANSYS进行动力学分析。结果显示本文研究对象在实际应用中能够承载一定的受力载荷,同时改进作业中的限制因素,后期还可以对其进行深度优化设计,为ADAMS轨迹运行分析提供模型基础。

关键词： 双足步行机器人   SolidWorks仿真分析   步态规划  

摘要： 以双足竞步机器人舵机的联动控制为基础,在研究人类行走、翻跟斗、立正等动作时每个关节所摆动的角度后,结合SolidWorks运动仿真分析对机器人的行走步态进行简单规划,最终设计开发了一种结构模型,并以此为基础进行调试,分别设计出能够实现站立、行走、翻滚等一系列仿人形动作的程序,后将设计好的程序应用于实验样机,检验验证了程序设计的可行性和合理性。