关键词： 学生组织   机器人   钥匙   直播   在线   教育领导力   小组讨论   互相帮助  

摘要： 在美国蒙大拿大学讲师麦考（BillMcCaw）授课的教育领导力课程上，参观者可能会看到学生组织小组讨论、互相帮助完成作业，其中，超过半数的学生是机器人。

关键词： 多机器人系统   吊运系统   动力学工作空间   工作空间质量   虚拟柔索法  

摘要： 针对多机器人通过柔索协同吊运同一重物的并联机器人系统,分析不同因素对系统动力学工作空间的影响。依据力旋量平衡方程建立了吊运系统的动力学模型,采用虚拟柔索法给出了该欠约束系统力旋量封闭的解决方案,并对系统的动力学工作空间和工作空间质量进行了分析。通过实例仿真计算得到了系统在不同工况下的动力学工作空间,并获得不同因素对系统动力学工作空间的影响规律,所得结果为进一步研究系统轨迹规划和运动稳定性提供了一定的基础。

关键词： 机器人   衣服   学会   患者   三维图像   高清晰度   TEO   癌  

摘要： 西班牙马德里卡洛斯三世大学研发的机器人TEO，在学会了爬楼梯和开门之后，又学会了熨衣服。面对铺在熨衣板上的衣服，TEO会用头部内置的相机进行全面扫描，建立高清晰度三维图像，计算衣服的褶皱情况。

关键词： 机器人竞赛   档案   青少年   一等奖   湖南省  

摘要： 曾获荣誉：第八届湖南省青少年机器人竞赛一等奖、第九届湖南省青少年机器人竞赛一等奖、第十五届中国青少年机器人竞赛二等奖、

关键词： 机器人竞赛   电脑制作活动   中小学生   银川市   宁夏   机器人足球   能力的培养   中国移动  

摘要： 2017年6月10日，第十八届“中国移动‘和教育’杯”全国中小学电脑制作活动（宁夏赛区）机器人竞赛在银川九中阅海分校举行。此次竞赛分别在小学、初中、高中设置了机器人足球、FLL“动物之友”竞赛、WER“工业时代”竞赛等7个项目。比赛以“实践、探索、创新”为主题，主要侧重信息技术对学生思维能力的培养。来自固原、吴忠、银川市的中小学生选手指挥他们的机器人在各自参赛的项目中进行了智力、创意以及动手能力等方面的比拼。

关键词： 机器人   学会   衣服   研究成果   西班牙   科学家   TEO   卡洛斯  

摘要： 让机器人包揽家务的梦想离现实又近了一步：西班牙科学家研制的一款机器人新近学会了熨衣服,所需的工具是普通熨斗和支架熨衣板.这款机器人名叫TEO,是西班牙马德里卡洛斯三世大学的研究成果.它身高1.8米,体重80公斤,跟人一样有头、躯干和四肢.此前它已经学会爬楼梯和开门.

关键词： Non-verbal cues   Preschool children   Reference   Social robots   Word learning  

摘要： Social robots are innovative new technologies that have considerable potential to support children's education as tutors and learning companions. Given this potential, it behooves us to study the mechanisms by which children learn from social robots, as well as the similarities and differences between children's learning from robots as compared to human partners. In the present study, we examined whether young children will attend to the same nonverbal social cues from a robot as from a human partner during a word learning task, specifically gaze and bodily orientation to an unfamiliar referent. Thirty-six children viewed images of unfamiliar animals with a human and with a robot. The interlocutor (human or robot) oriented toward, and provided names for, some of the animals, and children were given a posttest to assess their recall of the names. We found that children performed equally well on the recall test whether they had been provided with names by the robot or by the human. Moreover, in each case, their performance was constrained by the spatial distinctiveness of nonverbal orientation cues available to determine which animal was being referred to during naming. © 2017 Elsevier B.V.

关键词： INFORMATION theory   ROBOTICS   APPLIED mathematics   COMMUNICATION models   INFORMATION science  

摘要： Transfer entropy holds promise to advance our understanding of animal behavior, by affording the identification of causal relationships that underlie animal interactions. A critical step toward the reliable implementation of this powerful information-theoretic concept entails the design of experiments in which causal relationships could be systematically controlled. Here, we put forward a robotics-based experimental approach to test the validity of transfer entropy in the study of predator-prey interactions. We investigate the behavioral response of zebrafish to a fear-evoking robotic stimulus, designed after the morpho-physiology of the red tiger oscar and actuated along preprogrammed trajectories. From the time series of the positions of the zebrafish and the robotic stimulus, we demonstrate that transfer entropy correctly identifies the influence of the stimulus on the focal subject. Building on this evidence, we apply transfer entropy to study the interactions between zebrafish and a live red tiger oscar. The analysis of transfer entropy reveals a change in the direction of the information flow, suggesting a mutual influence between the predator and the prey, where the predator adapts its strategy as a function of the movement of the prey, which, in turn, adjusts its escape as a function of the predator motion. Through the integration of information theory and robotics, this study posits a new approach to study predator-prey interactions in freshwater fish. Published by AIP Publishing.

关键词： Flexible   Prismatic joint   Boundary conditions   Vibration   Assumed modes  

摘要： In the present study, for the first time, flexible multibody dynamics for a three-link serial robot with two flexible links having active prismatic joints is presented using an approximate analytical method. Transverse vibrations of flexible links/beams with prismatic joints have complicated differential equations. This complexity is mostly due to axial motion of the links. In this study, first, vibration analysis of a flexible link sliding through an active prismatic joint having translational motion is considered. A rigid-body coordinate system is used, which aids in obtaining a new and rather simple form of the kinematic differential equation without the loss of generality. Next, the analysis is extended to include dynamic forces for a three-link planar serial robot called PPP (Prismatic, Prismatic, Prismatic), in which all joints are prismatic and active. The robot has a rigid first link but flexible second and third links. To model the prismatic joint, time-variant constraints are written, and a motion equation in a form of virtual displacement and virtual work of forces/moments is obtained. Finally, an approximate analytical method called the "constrained assumed modes method" is presented for solving the motion equations. For a numerical case study, approximate analytical results are compared with finite element results, which show that the two solutions closely follow each other.