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Fingerprints Recognition Using a Neural Network
(Polytechnic University of Puerto Rico, 1999-06)
A fingerprint recognition approach, based on a backpropagation algorithm using a neural network, is presented. The purpose of our work is to show the relevance of the fingerprint method characterization by using the ...
Internet Security As An E-commerce Enabler
(Polytechnic University of Puerto Rico, 2000-06)
In the words of futurist Joel Arthur Barker "when the paradigms shift, everything starts from ground zero". The digital revolution is swiftly reshaping all aspects of life in society "in ways and forms we cannot fully ...
PUPR Looks Forward to the 21st Century with a Program of Research and Development
(Polytechnic University of Puerto Rico, 1999-06)
The New Economic Development model adopted by the Government of Puerto Rico is an effort to provide a diversified and solid foundation for future economic development in view of changes in the global economic context. The ...
New Tools for the Design and Analysis of Complex Springs
(Polytechnic University of Puerto Rico, 1999-06)
The molded case circuit breaker industry, in general, produces great families of breakers, i.e., the bolt-on and the plug-in units. The bolt-on unit uses a screw to connect the unit to the bus bar of the panelboard. In the ...
El redescubrirniento del yo y del otro: viajes, estructuras míticas, mitos y rituales de paso en Los pasos perdidos, de Alejo Carpentier
(Polytechnic University of Puerto Rico, 2005)
This paper is proposing the study of various themes related to Alejo Carpentier's Los pasos perdidos. Even though these themes have been studied before, it is proposing a new revision from a different perspective. First, ...
A Hybrid Deterministic/Genetic Test Generator to Improve Fault Effectiveness and Reduce CPU Time Run
(Polytechnic University of Puerto Rico, 2004)
This paper focuses on an evolutionary algorithm (EA) approach in the development of effective test vector generation for single and multiple fault detection in VLSI circuits. The genetic operators (selection, crossover, ...
Propagación de radiofrecuencias a través del espacio interestelar
(Polytechnic University of Puerto Rico, 2004)
Pulsar statrs act like simple radio stations consisting of a rotating two pole electromagnet. They behave like interstellar beacons radiating electromagnetic pulses in the microwave band.The interstellar radiation reaches ...
Antena inteligente con haces conmutados para redes de comunicaciones móviles*
(Polytechnic University of Puerto Rico, 2005)
The smart antenna technology for mobile communications has been the object of enormous worldwide interest during the last decade. The principal reason for the application of smart antennae is their potential for a large ...
Aplicación de sistemas de información geográfica en el análisis de la isla de calor urbana
(Universidad Politécnica de Puerto Rico, 1998-12)
An urban heat island has been described as the
difference in temperature between the city and its peripheral rural area. It is caused mainly by the growth of the city not taking into consideration the conditions previous ...
Historia de la ingeniería eléctrica, un formidable motor propuldor de la presente y futuras civilizaciones
(Universidad Politécnica de Puerto Rico, 1998-12)
In this article the reader will find a historic
account of the scientific discoveries that provided
the foundations of electrical engineering as a
profession. The article also presents a list of names
of those scientists ...