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Lima A.B.,Information Technology Center Renato Archer | Rocha T.,Information Technology Center Renato Archer | Pimentel M.,Information Technology Center Renato Archer | Feichas L.,Information Technology Center Renato Archer
2016 Electronics Goes Green 2016+, EGG 2016 | Year: 2016

In 2010 Brazil has instituted the national policy on solid waste (law 12.305/2010) that determines a set of principles and actions for the integrated management and environmentally appropriate of solid waste. To support WEEE recycling facilities to comply with national policy on solid waste, in 2013 the Information Technology Center Renato Archer (CTI), coordinated the creation of the Brazilian national standard 'ABNT NBR 16156: Electrical and electronic equipment's waste-requirements for reverse manufacturing activity'. Furthermore, since 2015, supported by SIBRATEC, a Brazilian government program of technological extension, CTI has worked with small and medium sized enterprises of WEEE recycling, to help them suit the standard ABNT NBR 16156 requirements. This paper presents the technological efforts, of the Brazilian government, to support the WEEE recycling companies to comply the environmental sound practices, and thus, facilitate their participation in the reverse logistics system, regulated by the national policy on solid waste. © 2016 Fraunhofer.


Bueno P.M.S.,Information Technology Center Renato Archer | Jino M.,University of Campinas | Wong W.E.,University of Texas at Dallas
Information Sciences | Year: 2014

We present a new test data generation technique which uses the concept of diversity of test sets as a basis for the diversity oriented test data generation - DOTG. Using DOTG we translate into an automatic test data generation technique the intuitive belief that increasing the variety, or diversity, of the test data used to test a program can lead to an improvement on the completeness, or quality, of the testing performed. We define the input domain perspective for diversity (DOTG-ID), which considers the distances among the test data in the program input domain to compute a diversity value for test sets. We describe metaheuristics which can be used to automate the generation of test sets for the DOTG-ID testing technique: simulated annealing; a genetic algorithm; and a proposed metaheuristic named simulated repulsion. The effectiveness of DOTG-ID was evaluated by using a Monte Carlo simulation, and also by applying the technique to test simple programs and measuring the data-flow coverage and mutation scores achieved. The standard random testing technique was used as a baseline for these evaluations. Results provide an understanding of the potential gains in terms of testing effectiveness of DOTG-ID over random testing and also reveal testing factors which can make DOTG-ID less effective. © 2013 Elsevier Inc. All rights reserved.


Olmos A.,Freescale Semiconductor | Pietri S.,Freescale Semiconductor | Coimbra R.,Freescale Semiconductor | Neto M.F.,Information Technology Center Renato Archer | Soldera J.D.B.,Laboratorio Of Sistemas Integraveis Tecnologico
Proceedings - IEEE International Symposium on Circuits and Systems | Year: 2011

The design of a low-power low-voltage programmable temperature detection circuit is described. The circuit provides a digital output that signals over-temperature and under-temperature conditions when die temperature rises above or falls below the programmed temperature thresholds. The output is obtained from the comparison between two temperature-related signals; the former has a CTAT with fixed thermal coefficient and the latter has an adjustable (PTAT, ZTAT or CTAT) thermal coefficient. The circuit design employs current as the main variable, based on the concept of inversion level. The circuit has been implemented in a 0.25m standard CMOS process, operates down to 1.5V, occupies an area of 0.0235mm2, consumes 750nA including bias circuitry, and has 5% accuracy for threshold temperatures ranging from 40C to 150oC. © 2011 IEEE.


Cardozo E.,University of Campinas | Guimaraes E.,Information Technology Center Renato Archer | Rocha L.,University of Campinas | Souza R.,University of Campinas | And 2 more authors.
IEEE/RSJ 2010 International Conference on Intelligent Robots and Systems, IROS 2010 - Conference Proceedings | Year: 2010

Most of the environments where mobile robots are deployed offer a comprehensive networking infrastructure. In order to take part of these environments, mobile robots must enhance not only their communication capabilities, but also their interaction capabilities. Current robotic frameworks are oriented to gather data from the robotic sensors and to act on the robot's actuators. In other words, such frameworks are oriented to perform embedded control functions. In order to provide mobile robots with enhanced interaction capabilities robotic applications must rely on networking solutions focus-ing on integration, communication, and security. This paper presents a platform for networked robotics that favors the integration of mobile robots with other networked devices, providing a secure and federated access to the mobile robots. ©2010 IEEE.


Guimaraes E.,Information Technology Center Renato Archer | Cardozo E.,University of Campinas | Moraes D.H.,University of Campinas | Coelho P.R.,University of Campinas
IEEE Transactions on Learning Technologies | Year: 2011

The design and implementation of remote laboratories present different levels of complexity according to the nature of the equipments operated by the remote laboratory, the requirements imposed on the accessing computers, the network linking the user to the laboratory, and the type of experiments the laboratory supports. This paper addresses the design and implementation of remote laboratories employing web technologies, both at the client and the server side. These types of remote laboratories are called WebLabs, and can be deployed over different networks such as the public internet, campuswide networks, or high-speed private networks. Although most published works on WebLabs focus on their functional and operational aspects, nonfunctional requirements related to security, quality of service, and federated operation of WebLabs have received little attention. This paper addresses how these requirements can be incorporated into WebLab design, and discusses the most appropriate web technologies to fulfill such requirements. © 2008 IEEE.


Agostinho L.,University of Campinas | Olivi L.,University of Campinas | Feliciano G.,University of Campinas | Paolieri F.,University of Campinas | And 3 more authors.
Proceedings - IEEE 9th International Conference on Dependable, Autonomic and Secure Computing, DASC 2011 | Year: 2011

This paper presents the design, implementation, and evaluation of a cloud computing environment for networked robotics. The environment aims to support distributed robotics applications that require large shares of computing resources and very low communication delays. Networked robotics applications are built above these services and run on virtualized environments deployed on processing nodes directly connected to the robotic resources manipulated by the applications. The cloud computing environment offers the REAL abs platform according to the Platform as a Service (PaaS) model of cloud computing. Also, we show an approach to evaluate robotic experiments by submitting tasks in a workflow cloud system. © 2011 IEEE.


Agostinho L.,University of Campinas | Feliciano G.,University of Campinas | Olivi L.,University of Campinas | Cardozo E.,University of Campinas | Guimaraes E.,Information Technology Center Renato Archer
Proceedings - IEEE 9th International Conference on Dependable, Autonomic and Secure Computing, DASC 2011 | Year: 2011

In cloud computing the allocation and scheduling of multiple virtual resources, such as virtual machines (VMs), are still a challenge. The optimization of these processes bring the advantage of improving the energy savings and load balancing in large data centers. Resource allocation and scheduling also impact in federated clouds where resources can be leased from partner domains. This paper proposes a bio-inspired VM allocation method based on Genetic Algorithms to optimize the VM distribution across federated cloud domains. The main contribution of this work is an inter-domain allocation algorithm that takes into account the capacity of the links connecting the domains in order to avoid quality of service degradation for VMs allocated on partner domains. An architecture to simulate federated clouds is also a contribution of this paper. © 2011 IEEE.

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