A system for automatic detection of road damages is essential for logistics management. At the core of the system lies an algorithm for classification of damages. This work intends to establish such an algorithm. In t...
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This paper shows that the aerodynamic effects can be compensated in a quadrotor system by means of a control allocation approach using neural ***,the system performance can be improved by replacing the classic allocat...
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This paper shows that the aerodynamic effects can be compensated in a quadrotor system by means of a control allocation approach using neural ***,the system performance can be improved by replacing the classic allocation matrix,without using the aerodynamic inflow equations *** network training is performed offline,which requires low computational *** target system is a Parrot MAMBO drone whose flight control is composed of PD-PID controllers followed by the proposed neural network control allocation *** a quadrotor is particularly susceptible to the aerodynamics effects of interest to this work,because of its small *** compared the mechanical torques commanded by the flight controller,i.e.,the control input,to those actually generated by the actuators and established at the *** was observed that the proposed neural network was able to closely match them,while the classic allocation matrix could not achieve *** allocation error was also determined in both ***,the closed-loop performance also improved with the use of the proposed neural network control allocation,as well as the quality of the thrust and torque signals,in which we perceived a much less noisy behavior.
This work presents a new global optimization algorithm based on differential evolution (DE) method and DE combined with chaotic sequences (DEC) given by logistic map. In this paper, the optimal shape design of Loney&#...
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Radio frequency energy harvesting has attracted considerable interest as a technique of enabling self-powered wireless networks. This technique faces several challenges, such as the receiving and the rectifying module...
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Companies are more commonly adopting the distributed teams' model, in order to increase their knowledge and skill set. In doing so the company will obtain several benefits, but it will lose its personal touch in m...
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Companies are more commonly adopting the distributed teams' model, in order to increase their knowledge and skill set. In doing so the company will obtain several benefits, but it will lose its personal touch in managing their employees. Aiming to verify if this tradeoff is beneficial for the company, Performance Measurement systems are more and more being applied to distributed teams and to follow this growth researchers are consistently focusing on this area. Due to this focus the count of articles reporting developments in the required capabilities to form and manage distributed teams performance measurement system increases as well. Along the way some researchers are developing/applying different types of literature review on the subject in order to identify its growth and the main areas the topic is growing. Following this trend the author performed a systematic review on the theme "Which organizational capabilities/competences a company must have in order to manage/develop distributed teams performance?". This paper aims to present a model to evaluate such literature review in order to quantify and qualify the results to make it even more clearly to other researchers. Based on the results of the research, others will be able to compare the research areas and contribute with its development.
In this paper, we propose a new 3D space modeling method for a SLAM (Simultaneous Localization and Mapping) by using distance measurement information on the horizontal plane by a SOKUIKI sensor and a 360-degree panora...
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The context-awareness is a central aspect in the design of pervasive systems, characterizing their ability to adapt its structure and behavior. The context-aware exception handling (CAEH) is an existing approach emplo...
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The pace of development in the world of 5G communication systems has proven to be much more demanding than previous generations, with 5G-Advanced seemingly around the corner [1]. Extensive research is already underway...
The pace of development in the world of 5G communication systems has proven to be much more demanding than previous generations, with 5G-Advanced seemingly around the corner [1]. Extensive research is already underway to structure the next generation of wireless systems(i.e. 6G), which may potentially enable an unprecedented level of human–machine interaction [2].
Organizations have been striving to demonstrate to society their political of good social and environmental practices. Thus, socially responsible investments have been increasingly significantly, one of the reasons fo...
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ISBN:
(纸本)9780983762447
Organizations have been striving to demonstrate to society their political of good social and environmental practices. Thus, socially responsible investments have been increasingly significantly, one of the reasons for increasing creation of indexes of corporate sustainability. Many studies have been done about the ISE - Corporate Sustainability Index - of BM&FBovespa, verifying if the portfolio composed of sustainable companies brings higher return to shareholders than other portfolios of regular companies. However, most of these researches focus on the stock value and there are few studies that give focus on fundamental analysis. The main purpose of this paper is to compare fundamentalist profitability indicators among a group of companies that compose the ISE index and a reference group, verifying if sustainable management improves business profitability and how it creates value for shareholders. The groups were compared and the evidences found show that despite the ISE have a differentiated theoretical portfolio, focused on social, environmental and ethical issues, the profitability of companies that compose the index is similar to or lower than the profitability of companies of the reference group. Nevertheless, the results show that the ISE Group has other ways to create shareholder value, as lower volatility and lower risk exposure.
In this paper a Hardware Architecture for computing the Extended Kalman Filter (EKF) is presented which is addressed to solve the self-localization problem of autonomous mobile robots. In this case, the overall EKF al...
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