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This case study arises from the need to make more robust and effective quality assurance procedures of the products by automating the final inspection process. The case study explains how the automation of the inspection process was performed in a company from the automotive sector. Knowledge, involvement and commitment of operators and respective managers should not be neglected because their reaction...
For hospitals, the variability on demand (number of daily urgent admissions) and the variability in the Length of Stay (LoS) (bed occupancy) may affect the quality of service provided to patients and the effectiveness of the overall service. This paper studies the LoS of 238 patients who performed hip surgery in the orthopedic service of a Portuguese hospital in 2014. It uses variables available in...
Companies and researchers involved in developing miniaturized electronic devices face the basic problem of the needed batteries size, finite life of time and environmental pollution caused by their final deposition. The current trends to overcome this situation point towards Energy Harvesting technology. These harvesters (or scavengers) store the energy from sources present in the ambient (as wind,...
The central nervous system (CNS) and the periphery are closely associated in the regulation of body homeostasis. In fact, in both physiological and pathological conditions, the CNS showed to be targeted by peripheral system molecules, which are able to generate adaptive responses under the tight control of the hypothalamus. In spite of having a well-recognized importance, the mechanisms underlying...
This paper presents the dynamic parameter identification of the 7-DOF WAM™Arm using a novel physically consistent regression technique. Due to model and data errors, physically impossible parameters can arise with classical estimations methods. Such infeasible estimations cannot be used in robot control or simulation. This paper proposes a semidefinite programming (SDP) reformulation of the classical...
This work is about a developed and implemented power quality digital meter to comply with the new Brazilian standard to regulate the Power Quality in Brazil. The objective of this work has been to develop a low cost device able to monitor the main indices of standard such as the steady state rms voltage, harmonic distortion, fluctuation voltage, unbalance voltage, voltage sags and swells and power...
Three-phase voltage-source inverter is one of the most widely used power converters. Therefore, the need to insure a continuous and safety operation for this power converter with fault detection technique is a need, more or less, depending on their application. For this power converter several faults can appear. This paper presents a method for the detection and identification of the transistor open...
This work deals with the development of a digital power quality meter to comply with the new standard which regulates the Power Quality requirements in Brazil. The purpose was to develop a low cost device able to monitor the main standard indices such as the steady state RMS voltage, harmonic distortion, voltage fluctuation, voltage unbalance, voltage sags and swells, and power supply interruptions...
Over the years, air transport has increased gradually. This increase can cause difficulties in air traffic management, reducing its effectiveness. The use of intelligent agents in air traffic management seems to be a promising approach to overcome this difficulty. Thus this paper proposes the creation of a multi-agent system for autonomous air traffic management. Several concepts and proposals suggested...
Aligning Business and Information Technologies strategies has been a subject studied for a long time. Despite all the efforts, achieving and sustaining Business-IT alignment remains a challenge requiring even more agility nowadays to keep up with the competition in a turbulent organizational environment. Past contributions are uncovered in this paper calling particular attention to the development...
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