A Unified Approach to Configuration-based Dynamic Analysis of Quadcopters for Optimal Stability

A special type of rotary-wing Unmanned Aerial Vehicles (UAV), called Quadcopter have prevailed to the civilian use for the past decade. They have gained significant amount of attention within the UAV community for their redundancy and ease of control, despite the fact that they fall under an under-actuated system category. They come in a variety of configurations. The "+" and "x" configurations were introduced first. Literature pertinent to these two configurations is vast. However, in this paper, we define 6 additional possible configurations for a Quadcopter that can be built under either "+" or "x" setup. These configurations can be achieved by changing the angle that the axis of rotation for rotors make with the main body, i.e., fuselage. This would also change the location of the COM with respect to the propellers which can add to the overall stability. A comprehensive dynamic model for all these configurations is developed for the first time. The overall stability for these configurations are addressed. In particular, it is shown that one configuration can lead to the most statically-stable platform by adopting damping motion in Roll/Pitch/Yaw, which is described for the first time to the best of our knowledge.Comment: 6 page, 9 figure

Exploiting timing information in event-triggered stabilization of linear systems with disturbances

In the same way that subsequent pauses in spoken language are used to convey information, it is also possible to transmit information in communication networks not only by message content, but also with its timing. This paper presents an event-triggering strategy that utilizes timing information by transmitting in a state-dependent fashion. We consider the stabilization of a continuous-time, time-invariant, linear plant over a digital communication channel with bounded delay and subject to bounded plant disturbances and establish two main results. On the one hand, we design an encoding-decoding scheme that guarantees a sufficient information transmission rate for stabilization. On the other hand, we determine a lower bound on the information transmission rate necessary for stabilization by any control policy

Physiological and Neural Adaptations to Eccentric Exercise:Mechanisms and Considerations for Training

Eccentric exercise is characterized by initial unfavorable effects such as subcellular muscle damage, pain, reduced fiber excitability, and initial muscle weakness. However, stretch combined with overload, as in eccentric contractions, is an effective stimulus for inducing physiological and neural adaptations to training. Eccentric exercise-induced adaptations include muscle hypertrophy, increased cortical activity, and changes in motor unit behavior, all of which contribute to improved muscle function. In this brief review, neuromuscular adaptations to different forms of exercise are reviewed, the positive training effects of eccentric exercise are presented, and the implications for training are considered

Harmonizing Aesthetics and Psychological Well-being: An Indepth Exploration of the Integrative Impact of Dysport in Cosmetic Procedures

This research endeavors to delve into the intricate interplay between aesthetic intelligence, aesthetic sensitivity, and psychological well-being within the framework of positive psychology. Recognizing the profound influence of environmental aesthetics on individuals' health and well-being, this study aims to illuminate the relationship between aesthetic intelligence and psychological well-being, with aesthetic sensitivity acting as a mediating factor. Employing a correlational research design, structural equation modeling was applied as the methodological approach. The research cohort comprised all students enrolled at Bu-Ali Sina University during the academic year 2018-2019. Employing cluster sampling, 384 students were selected based on the recommended sample size for structural equation modeling. The instruments employed in this study included the Ryff Well-being Scale (2), the Aesthetic Intelligence Scale developed by Rashid et al. (2017), and Abdulsalami's (2013) Aesthetic Sensitivity Scale. The findings derived from structural equations analysis revealed that both aesthetic intelligence and aesthetic sensitivity exerted a significant direct impact on psychological well-being. Furthermore, aesthetic intelligence demonstrated a direct and significant effect on aesthetic sensitivity. The exploration of indirect relationships indicated that aesthetic intelligence, acting through the mediation of aesthetic sensitivity, significantly influenced psychological well-being. Considering these outcomes, it can be inferred that individuals' awareness and appreciation of environmental beauty positively contribute to their psychological well-being. Consequently, the development of educational programs aimed at enhancing aesthetic capabilities in individuals holds the potential to elevate overall well-being

Harmonizing Aesthetics and Psychological Well-being: An Indepth Exploration of the Integrative Impact of Dysport in Cosmetic Procedures

This research delves into the intricate interplay between aesthetic intelligence, aesthetic sensitivity, and psychological well-being within the framework of positive psychology, with a particular emphasis on the integrative impact of Dysport in cosmetic procedures. By recognizing the significant influence of environmental aesthetics on individual health and well-being, this study seeks to illuminate the relationship between aesthetic intelligence and psychological well-being while considering the role of Dysport in cosmetic procedures. Employing a correlational research design, structural equation modeling was utilized as the methodological approach. The research cohort comprised all students enrolled at Bu-Ali Sina University during the academic year 2018-2019. Employing cluster sampling, 384 students were selected based on the recommended sample size for structural equation modeling. The instruments included the Ryff Well-being Scale, the Aesthetic Intelligence Scale developed by Rashid et al., and Abdulsalami's Aesthetic Sensitivity Scale. Findings revealed significant direct impacts of both aesthetic intelligence and aesthetic sensitivity on psychological well-being. Moreover, aesthetic intelligence demonstrated a direct and significant effect on aesthetic sensitivity. Exploration of indirect relationships indicated that aesthetic intelligence, mediated by aesthetic sensitivity, significantly influenced psychological well-being. These findings underscore the importance of individuals' awareness and appreciation of environmental beauty, including the role of Dysport in cosmetic procedures, in positively contributing to psychological well-being