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Mostrando ítems 1-10 de 13
Un universo de radiación
(Polytechnic University of Puerto Rico, 1998-06)
During the last two decades there has been an increase in the worrines of the people regarding the proliferation of electromagnetic fields and their effects on the human body. In this article we explain the basic principles ...
New technologies in mathematics
(Polytechnic University of Puerto Rico, 1998-06)
Throughout the ages, the development of computational instruments runs parallel to the development of mathematics playing an important role in the dissemination of this subject matter and its applications. Nevertheless, ...
Vertebral arteries
(Polytechnic University of Puerto Rico, 1998-06)
During the investigation period, which lasted almost four months, we made a research of the vertebral arteries in the posterior part of the head in children. During this time we investigated the size, diameter and the blood ...
Formulación de un modelo lagrangiano de partículas para simular la difusión de contaminantes atmosféricos. I
(Polytechnic University of Puerto Rico, 1998-06)
One of the most relevant aspects the atmosphere is its capacity for transporting substances, heat or momentum vertically among different levels. This property is of fundamental importance in the troposphere because otherwise ...
Low-volume speech
(Polytechnic University of Puerto Rico, 1998-06)
This project is the outcome of the necessity of a female patient of Parkinson's disorder and hearing disability of having someone to tell her to speak louder when her voice level could not be heard. The idea was to build ...
Nonoccupational noise exposures and their hazards: a literature review
(Polytechnic University of Puerto Rico, 1998-06)
Noise pollution has been extensively studied during the last 30 years. Although most of the government regulations protect the vast majority of the workforce in the in the United States, they fail to consider the workers' ...
El Politécnico (Año 5, Número 15, Diciembre 1998)
(Polytechnic University of Puerto Rico, 1998-12)
Periódico El Politécnico (Año 5, Número 15, Diciembre 1998) órgano oficial de la Universidad Politécnica de Puerto Rico, se publica con una periodicidad trimestral.
El Politécnico (Año 5, Número 14, Septiembre 1998)
(Polytechnic University of Puerto Rico, 1998-09)
Periódico El Politécnico (Año 5, Número 14, Septiembre 1998) órgano oficial de la Universidad Politécnica de Puerto Rico, se publica con una periodicidad trimestral.
El Politécnico (Año 5, Número 13, Marzo 1998)
(Polytechnic University of Puerto Rico, 1998-03)
Periódico El Politécnico (Año 5, Número 13, Marzo 1998) órgano oficial de la Universidad Politécnica de Puerto Rico, se publica con una periodicidad trimestral.
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 ...