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IEEE Latin America Transactions

Issue 3 • Date Sept. 2004

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Displaying Results 1 - 9 of 9
  • Identification of Frontal Sinus by means of Form Factors and Fourier Descriptors

    Publication Year: 2004, Page(s):157 - 161
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (367 KB)

    Individual identification based on radiographic frontal sinus comparison is considered a reliable means of establishing positive identification. An ante mortem craniography was compared to a post-mortem craniography. However, due to the position and distance at which the X-rays have been acquired, this comparison can not be carried out by a simple visual inspection. Digital Image Processing techni... View full abstract»

    Open Access
  • A New Strategy for Objective Estimation of the Quality of Audio Signals

    Publication Year: 2004, Page(s):162 - 167
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (430 KB)

    This paper presents a new strategy for assessment of audio signal quality. The resulting method, named Objective Measure of Audio Quality, includes some of the most effective features found in the current methods of audio assessment, as well new techniques resulting from the identification and study of the major limitations of such methods. The performance of the new strategy is compared to that o... View full abstract»

    Open Access
  • Time-Frequency Feature Extraction from Residues of Voiced Phonemes

    Publication Year: 2004, Page(s):168 - 173
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (393 KB)

    A speaker -recognition system attempts to recognize a speaker by his/her voice. A common problem in these systems is that a mismatch in the training and testing conditions damages the performance a great deal. The objective of this paper is to seek for new features of speech that can help to develop alternative techniques to identify who speaks. Being speech the result of a dynamic process and try... View full abstract»

    Open Access
  • Integrated System's Design with Robust State Feedback via Linear Matrix Inequalities

    Publication Year: 2004, Page(s):174 - 182
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Integrated system design is a methodology that incorporates dynamic constraints in the early stages of process design. Hence assuring not only the production goals but also good dynamic performance. In this work we present an approach to integrated system design that considers non linear processes with non linear static constriants and one implicit constraint. The latter, the existance of a state ... View full abstract»

    Open Access
  • Strategies to Attend Destructive and Nondestructive Faults in Power Transmission Substations

    Publication Year: 2004, Page(s):183 - 190
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (449 KB)

    In this document, the reliability evaluation of line circuits and the development of restoration strategies for ten transmission substations from the most important Colombian power transmission utility (ISA) are presented. There are two types of strategies to restore transmission substations: Fault procedures and contingency plans. The Fault procedures are used to attend non-destructive faults of ... View full abstract»

    Open Access
  • Transients Simulator For Transmission Lines: an Original Analysis Proposal

    Publication Year: 2004, Page(s):191 - 195
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (378 KB)

    This paper describes an original method of analysis based on the classical circuit theory, traveling waves and the superposition principle, developing a solution method in time domain, which avoids working with complicated differential equations. This alternative breaks the transmission line down in a set of very short cells, obtaining a Thevenin equivalent model at each end and intermediate point... View full abstract»

    Open Access
  • Generation of Trip Routes on the Basis of a Geographic Information System

    Publication Year: 2004, Page(s):196 - 200
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (410 KB)

    By means of the use of a geographical base integrated by a geographic information system, a neural network of type Hopfield is used that provides a route of trip of a point to other one inside the map of the system. View full abstract»

    Open Access
  • Modeling and Simulation of Current Transformers with the EMTP/ATP program

    Publication Year: 2004, Page(s):201 - 205
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (389 KB)

    This paper describe the modeling and simulation of current transformers (TC's), used with protective relays, with data of tests of laboratory, of saturation and relation, determining its answer, regarding different conditions gives the electric system. The analysis of model it is based on the simulation of the TC's, using the saturable transformer model from the ElectroMagnetic Transient Program (... View full abstract»

    Open Access
  • Advanced Surveillance: From Tracking To Event Detection

    Publication Year: 2004, Page(s):206 - 211
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1045 KB)

    The authors suggest an automatic surveillance system based on a robust and simple algorithm for foreground detection and tracking of multiple objects in complex environments. It is possible to obtain enough information from the characteristics of the detected objects, their centroid's position and their trajectories as to detect some predefined events. Working without the operator supervision the ... View full abstract»

    Open Access

Aims & Scope

IEEE Region 9 provides IEEE Latin America Transactions to enable the publication of non-published and technically excellent papers from Latin American engineers, in Spanish or Portuguese languages.

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Editor-in-Chief
Mirela Sechi Moretti Annoni Notare
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+55(48)9981-4823