Characterization of Airport Movement Sequence

Runways as the most critical parts in the aviation infrastructure have a great impact on the whole aviation effectiveness. Our present research has attempted to provide a better understanding of the nature of the sequence between the runway movements. For that traffic data of a typical medium-capacity airport was analyzed.

Algorithmic Selection of Sliding-Sticking Contacts in Robotic In-Hand Manipulation

The paper describes a kinematic method for robotic in-hand manipulation of objects. The method focuses on repositioning the object using a combination of sticking and sliding robotic contacts. Two fingertips with sliding contacts are fixed in space while the remaining fingertips actively manipulate the object without a change in the point of contact with the object. When sliding over two fixed contacts, the object is constrained to a “three-parameter twist space” if it is not programmed to rotate about the line joining the two fixed contacts. A gradient-descent-based kinematic algorithm is developed to project the desired twist to the allowable twist space, generating a movement sequence of robotic fingertips. The transition from fixed support vis-á-vis the sticking contacts for manipulating the object also emerges from the algorithm.

Análisis de propuestas de Educación Física en casa durante la suspensión de clases por la COVID-19 y orientaciones para su diseño en Educación Primaria (Analysis of Physical Education at home proposals during the suspension of face-to-face classes due to

El sistema educativo está tratando de responder de manera eficaz a los retos y cambios en materia educativa provocados por la COVID-19. El proceso de transición de una enseñanza predominantemente presencial a una virtual ha supuesto un esfuerzo considerable para el profesorado de Educación Física (EF) con la finalidad de adaptar el proceso de enseñanza-aprendizaje. No hay evidencias de estudios que hayan analizado las iniciativas de EF en casa realizadas por los docentes. Esta investigación tiene como objetivo analizar, desde una perspectiva curricular, diferentes propuestas de EF en casa con la finalidad de conocer sus características, compartir ejemplos de buenas prácticas y ofrecer al profesorado orientaciones útiles que les ayuden a diseñar propuestas de calidad en el futuro. Los resultados evidenciaron que el perfil predominante de actividad fue un ejercicio individual de carácter motriz centrado en el desarrollo de la condición física y presentada como un reto, donde el alumnado repite una secuencia específica de movimientos con ayuda de internet. Abstract. The education system attempts to effectively respond to the instructional changes and challenges caused by COVID-19. The adaptation process of predominantly face-to-face teaching to virtual one has involved a substantial effort for Physical Education (PE) teachers with the aim of adapting the teaching and learning process. To the best of our knowledge, no studies have analyzed the different at-home PE units done by teachers. This research aimed at examining, from a curricular perspective, distinct at-home PE proposals in order to ascertain their characteristics, share instances of good teaching practices, and provide teachers with useful guidelines to help them design quality proposals in the future. The results evidenced that the predominant activity profile was an individual motor exercise focused on physical fitness and introduced as a challenge, in which students repeat a specific movement sequence with the aid of the internet.

Mechanism Design and Experiment of a Bionic Turtle Dredging Robot

In order to clean underwater silt in artificially constructed rivers, lakes, and fish ponds, for which no suitable tool exists, a tool has been developed that imitates the structure and movement of the tortoise’s legs, and designs a four-legged dredging robot that can adapt to the complex underwater environment. The article uses the transformation matrix to analyze the kinematics of the dredging robot, determines the movement sequence of the outriggers according to the principle of stability, and analyzes the movement characteristics of the three gait modes. Then, we combined the control function of the foot trajectory with the experimental prototype based on the bionic tortoise mechanism to carry out a walking experiment. During the experiment, the motion stability is good. Additionally, the changes in the position, the posture of the outriggers, and the body prove that the movement stability of the dredging robot using coordinated gait, mixed gait, and intermittent gait has increased sequentially.

Move and Be Moved: The Effect of Moving Specific Movement Elements on the Experience of Happiness

Dynamic body feedback is used in dance movement therapy (DMT), with the aim to facilitate emotional expression and a change of emotional state through movement and dance for individuals with psychosocial or psychiatric complaints. It has been demonstrated that moving in a specific way can evoke and regulate related emotions. The current study aimed to investigate the effects of executing a unique set of kinetic movement elements on an individual mover’s experience of happiness. A specific sequence consisting of movement elements that recent studies have related to the feeling of happiness was created and used in a series of conditions. To achieve a more realistic reflection of DMT practice, the study incorporated the interpersonal dimension between the dance movement therapist (DMTh) and the client, and the impact of this interbodily feedback on the emotional state of the client. This quantitative study was conducted in a within-subject design. Five male and 20 female participants (mean age = 20.72) participated in three conditions: a solo executed movement sequence, a movement sequence executed with a DMTh who attuned and mirrored the movements, and a solo executed movement sequence not associated with feelings of happiness. Participants were only informed about the movements and not the feelings that may be provoked by these movements. The effects on individuals were measured using the Positive and Negative Affect Schedule and visual analog scales. Results showed that a specific movement sequence based on movement elements associated with happiness executed with a DMTh can significantly enhance the corresponding affective state. An additional finding of this study indicated that facilitating expressed emotion through movement elements that are not associated with happiness can enhance feelings such as empowerment, pride, and determination, which are experienced as part of positive affect. The results show the impact of specific full-body movement elements on the emotional state and the support outcome of DMT on emotion regulation.

Cognitive Interaction Technology in Sport—Improving Performance by Individualized Diagnostics and Error Prediction

The interdisciplinary research area Cognitive Interaction Technology (CIT) aims to understand and support interactions between human users and other elements of socio-technical systems. Important reasons for the new interest in understanding CIT in sport psychology are the impressive development of cognitive robotics and advanced technologies such as virtual or augmented reality systems, cognitive glasses or neurotechnology settings. The present article outlines this area of research, addresses ethical issues, and presents an empirical study in the context of a new measurement and assessment system for training in karate. Recent advances in the field of cognitive assistance systems enabled largely automatized assessments of individual mental representation structures for action sequences, such as choreographed movement patterns in dance or martial arts. Empirical investigations with karate practitioners of different skill levels demonstrate that advanced software-based survey and algorithmic analysis procedures based on cognitive models generate individualized performance predictions for a movement sequence from the Kanku-dai kata (a pre-defined karate movement sequence), which correlated significantly not only with formal expertise (kyu/dan rank) but also with the actual likelihood of mistakes in action execution. This information could prospectively be used to define individual training goals for deliberate practice and incorporated into cognitive interaction technology to provide appropriate feedback. We argue that the development of cognitive interaction systems for sport should explicitly take ethical issues into consideration and present a particular developed engineering approach. The potential benefits of such an assistance system for intermediate and advanced practitioners include more effective and flexible practice, as well as supportive effects, and more flexible training schedules. Furthermore, we argue that researchers from the field of sport psychology can benefit from advances in technological systems that enhance the understanding of mental and motor control in skilled voluntary action.