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Experimental Design of a High Vacuum System for PUPR-MC Plasma Machine
(Polytechnic University of Puerto Rico, 2008)
In vacuum technology it is customary to divide a large pressure region (as of today, covering 16 orders of magnitude) into single, smaller regions. These divisions are somewhat arbitrary. Thus, the chemists frequently refer ...
Smart Antenna Performance Simulation in Multipath Propagation Environment
(Polytechnic University of Puerto Rico, 2008)
This paper presents the effect of multipath propagation on the performance of smart antenna. The influence of the correlation between the source multipath components on the uplink beam pattern shape, as well as the resulting ...
Plasma Gas Identification Using the Single Langmuir Probe
(Polytechnic University of Puerto Rico, 2008)
A novel method to identify mass composition of plasmas was discovered at Polytechnic University of Puerto Rico Mirror Cusp (PUPR-MC) plasma machine using a Single Langmuir probe characteristic. This is a comparative method ...
La enseñanza de la ingeniería en el siglo XXI
(Polytechnic University of Puerto Rico, 2000-06)
The teaching of the engineering disciplines during the XXI Century will continue, as has been established already, with a solid foundation in physical sciences, mathematics, liberal arts, engineering sciences and engineering ...
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 ...
High Density Plasma Nitriding on Stainless Steel Alloys at PUPR-MC Plasma Machine
(Polytechnic University of Puerto Rico, 2008)
A novel method of nitriding at high current levels at Polytechnic University of Puerto Rico Mirror Cusp plasma machine (PUPR-MC) has been performed. Nitrogen ions implantation or plasma nitriding increases the hardness at ...
Are you making good decisions?
(Polytechnic University of Puerto Rico, 2004)
Due to the wide array of choices that modern society has at its disposal, decision making has become an integral part of our daily routines. Because of that, most of the time, the potential repercussions associated with ...
Power Electronics Research Experience for Undergraduates
(Polytechnic University of Puerto Rico, 2004)
On the first half of the 20th century many of the electronic devices and machinery used were very expensive, inefficient, unreliable, and robust. With revolutionary advances in semiconductor technology much of these barriers ...
Sistemas de Información Geográfica y Técnicas de Interpolación Espacial para la Modelación de Valores Residenciales
(Polytechnic University of Puerto Rico, 2006)
El presente escrito muestra los resultados de una metodología que, utilizando técnicas de interpolación espacial, procedió a modelar los valores de ventas residenciales en la periferia de la alienación del Tren Urbano para ...
Retroceso de glaciares tropicales en los Andes Centrales de Colombia mediante imágenes LANDSAT
(Polytechnic University of Puerto Rico, 2006)
Los glaciares tropicales exhiben cambios significativos en respuesta a las variaciones de las condiciones climáticas, observándose una pérdida constante y progresiva en los últimos 100 años. La estimación de la superficie ...