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Operational boundaries calculation of Permanent Magnet assisted Synchronous Reluctance Motor is proposed. Furthermore the analysis of the thermal effects and iron losses on the motor operational boundaries is realized. The different motor analysis is carried out without finite element analysis, so the time required evaluating the envelope curve are reduced. Hence, operational boundaries can be introduced...
Wireless Sensor Networks are nowadays employed in several applications. Cyber-physical systems, health-care instruments and Internet of Things are using hundreds of smart sensors, which include also processing capability together with sophisticated communication protocols. The presence of faults in these critical applications must be checked during runtime, to detect transient and permanent faults...
The present work is oriented to analyze the backscattering signal generated by the X-band, when it is interacting with sea ice, located in the vicinity of Fildes Bay, King George Island (Southland Shetland Islands), from Antarctic. Radar images captured by TerraSAR-X satellite StripMap mode were used, whose emitted signal was polarized in Dual mode (HH-VV). The images were processed using the software...
This paper presents the main concepts and the initial analysis of the ESA SEOM project SInCohMap “EXPLOITATION OF SENTINEL-1 INTERFEROMETRIC COHERENCE FOR LAND COVER AND VEGETATION MAPPING”. The project evaluates the performance of using the interferometric coherence of S-1 time series for land cover and vegetation mapping. One of the main objectives of the project is to quantify the impact in using...
Similarity measures, as studied in the context of fuzzy set theory, have been proven applicable to many different fields. Surely, their primary role is to model the perceived (dis-) similarity between two fuzzy sets or, equivalently, the linguistic terms they represent. However, the richness of the dedicated study makes the similarity measures portable to other contexts in which quantitative comparison...
Comparison activities in which a number of measurement facilities compare their measurements of the same antenna in a standard configuration have become important for documentation and validation of laboratory expertise and competence. It is also mandatory to have regular participation in such activities to obtain and maintain accreditations like ISO 17025. The main goal of the facility comparison...
This paper proposes a methodology for optimal design of Permanent Magnet assisted Synchronous Reluctance Motor. The magnetic model is explained because the particularities associated to high magnetic saturation regions this motor has, which lead to difficulties in inductance calculation. Hence, the finite element analysis is currently used to design and optimize Permanent Magnet assisted Synchronous...
In this paper, the optimal schedule of dispatchable distributed generation (DG) units connected to radial electrical distribution systems (EDS) is solved using an extended dynamic programming approach. The objective of the optimal DG scheduling problem is to determine the hour-by-hour active generation output of each dispatchable DG unit, in order to minimize the total active power losses of the EDS...
We analysed the resonant coupling in the refractive index sensor based on the microstructure optical fiber with satellite hollow-core waveguide that is used as an analyte channel. We showed a possibility of 16-fold increase in the analyte channel cross-section.
An optimal design for a rotor of SynRM is proposed on this paper. The inductances of the machine computed in dq-axes allow determining machine performance and the motor behavior. High magnetic saturation on this kind of motor increases the difficulty of inductance calculation. Hence, the finite element analysis is currently used to design and optimize SynRM, from the first instance. This method usually...
A novel motor design methodology and optimization is proposed, which is applied to a SRM. It greatly reduces the finite element analysis use. A multi physics study is realized in order to couple the thermal, magnetic and electric motor analysis. Then, the information obtained with this study allows creating different behaviors maps in order to evaluate the motor in all operating area. With the joule...
In this paper we deal with the Internet Shopping Optimization Problem. An extended model that includes price sensitive discounts is considered. A set of algorithms to solve the Internet Shopping Optimization Problem with Price Sensitivity Discounts (ISOPwD) is introduced. The algorithms are designed to consider a different solution quality regarding computational time and results close to the optimum...
We present a layout and operational characteristics of an optical switch that performs a cyclic switching of an input port to multiple output ports by means of a metal-clad optical fibre cantilever in oscillatory motion at its natural resonance frequency. The oscillatory motion of the fibre is produced by the force of the alternating electric or magnetic field. The switch is intended for use in large...
We describe a sensor system for damage detection in concrete structures after extreme events such as earthquakes. The system employs large array of optical fibres (up to 256 fibres) that are either embedded in, or bonded to the surface of the structural element or elements under test. A structural damage (cracks or complete failure) results in breaking of one or several optical fibres and sharp decrease...
Differentiation of interval-valued functions is an intricate problem, since it cannot be defined as a direct generalization of differentiation of scalar ones. Literature on interval arithmetic contains proposals and definitions for differentiation, but their semantic is unclear for the cases in which intervals represent the ambiguity due to hesitancy or lack of knowledge. In this work we analyze the...
In this paper, a novel mathematical optimization model for the optimal load scheduling in smart buildings is presented. The proposed building energy management system uses the optimization model to make a quick and optimal load scheduling. Analysis of the results shows the stability of the propose model when solving the problem in residential smart buildings. Minimization of the use of the grid's...
There exist a significant number of benchmarks for evaluating the performance of boundary detection algorithms, most of them relying on some sort of comparison of the automatically-generated boundaries with human-labeled ones. Such benchmarks are composed of a representative image data set, as well as a comparison measure on the universe of boundary images. Despite many such data sets and measures...
In Mexico, the adopted standard for Digital Terrestrial Television is ATSC (A/53), which uses 8-VSB modulation. In addition, ATSC M/H (A/153) is the standard for Mobile and Handheld Television, which also uses 8-VSB but with several improvements in channel coding. Mexico recently lived the analog to digital television transition, for this reason the performance of some ATSC M/H commercial receivers...
The effects of permanent faults, arising along working life of digital electronic systems, may impact their reliability and performance. In-field test may help to detect these faults and to prevent serious effects in safety-critical applications. Distributed electronic systems introduce further complexity in this scenario, as the low observability and the lack of maintenance make difficult the detection...
Controllable load scheduling is an important topic of study in smart homes which intends to use intelligent distributed resources, especially those which provide renewable energy in order to minimize cost of power supplied by the distribution network. This paper develops a model for controllable load scheduling in a smart home using GRASP. The developed model seeks to maximize the available energy...
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