Now showing items 1-10 of 17
The cutting time with abrasive discs can be reduced by the control of the cutting speed
(Technical Paper - Society of Manufacturing Engineers. MR, 1997-12-01) [Artigo]
This paper presents an experimental study on the life of abrasive discs in cut-off type operations with two conditions of cutting speed. The cutting time is shown with a comparative analysis of the cutting speed.
A novel approach to robust parameter estimation using neurofuzzy systems
(Mathematics and Computers In Simulation, 1999-02-01) [Artigo]
A novel approach for solving robust parameter estimation problems is presented for processes with unknown-but-bounded errors and uncertainties. An artificial neural network is developed to calculate a membership set for ...
Photo-induced electron trapping in indirect bandgap AlxGa1-xAs : Si at low temperature
(Journal of Physics: Condensed Matter, 1999-01-18) [Artigo]
A variation of photoconductivity excitation with wavelength is applied to Si-doped Al0.56Ga0.44As (indirect bandgap material) for a wide range of temperature. The lower the temperature the lower the photocurrent below 70 ...
DISAGGREGATABILITY OF INDURATED SOILS IN SOUTHEASTERN BRAZIL
(Geotechnical Engineering of Hard Soils - Soft Rocks, Vol 1, 1993-01-01) [Trabalho apresentado em evento]
Nonlinear optimization using a modified Hopfield model
(IEEE World Congress on Computational Intelligence, 1998-01-01) [Trabalho apresentado em evento]
Systems based on artificial neural networks have high computational rates due to the use of a massive number of simple processing elements. Neural networks with feedback connections provide a computing model capable of ...
Dynamic behavior of a linear induction motor
(Proceedings of the Mediterranean Electrotechnical Conference - MELECON, 1998-12-01) [Trabalho apresentado em evento]
Although conventional rotating machines have been largely used to drive underground transportation systems, linear induction motors are also being considered for future applications owing to their indisputable advantages. ...
New approach of induction machine drive using an adaptive digital PID controller with gain planning based on artificial neural networks
(Proceedings of the American Control Conference, 1999-12-01) [Trabalho apresentado em evento]
The present work introduces a new strategy of induction machines speed adjustment using an adaptive PID (Proportional Integral Derivative) digital controller with gain planning based on the artificial neural networks. This ...
Production grinding burn detection using acoustic emission and electric power signals
(Abrasives, 1999-12-01) [Artigo]
This work uses a monitoring system based on a PC platform, where the acoustic emission and electric power signals generated during the grinding process are used to investigate superficial burning occurrence in a surface ...
The behaviour of resin-bond diamond wheels in the grinding of advanced ceramics
(Industrial Diamond Review, 1998-12-01) [Artigo]
Results are reported of the behaviour of the plane tangential grinding process using diamond grinding wheels. Grinding performance is analysed in terms of the wear behaviour of the wheel in the grinding of ceramic. Discussion ...
Evaluation and identification of lightning models by artificial neural networks
(Proceedings of the International Joint Conference on Neural Networks, 1999-12-01) [Trabalho apresentado em evento]
This paper describes a novel approach for mapping lightning models using artificial neural networks. The networks acts as identifier of structural features of the lightning models so that output parameters can be estimated ...