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Subscriber line automatic identification number device
(Polytechnic University of Puerto Rico, 1995-12)
The subscriber line automatic identification number device, SLAIN device, is an apparatus that may be utilized as the subscriber's end section of a telephone privatization system. This system will not utilize any equipment ...
Coeficientes de utilización de disyuntores ("breaker duty")
(Polytechnic University of Puerto Rico, 1993-06)
The breaker duty calculation is very important to the electric industry cause it shows which breakers overload under fault conditions. This way e utility determine the the extra capacity to add to those breakers or Aether ...
Dinámica de redes y el modelo del ión rígido en cristales del tipo R2MX6
(Polytechnic University of Puerto Rico, 1992-12)
The theory of lattice dynamics in the harmonic approximation and the Born and Huang's rigid-ion model are used to study ionic crystals of R2MX6 type with antifluorite structure. The rigid-ion model expresses the potential ...
Wave solder process characterization by an experimental design approach
(Polytechnic University of Puerto Rico, 1992-06)
A manufacturing company in Puerto Rico was interested in evaluating the possibility of profiling all printed circuit board assemblies. Experimental design, a method for systematically planning engineering studies, offered ...
Pérdidas de agua en los sistemas fluviales
(Polytechnic University of Puerto Rico, 1993-12)
In this paper we identify those elements that contribute to the undetermined water losses in the Puerto Rico Water and Sewers Authority. We also provide detailed recommendations to reduce these losses.
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 ...
Architects and engineers: What makes the difference?
(Polytechnic University of Puerto Rico, 1997-12)
The historic dispute between architects and engineers, particularly civil engineers, is nonsense. Both professions are prestigious and dedicate themselves to covering separate and distinct aspects of the design of buildings ...
Experiencia con el proceso de mejoramiento de la calidad en una empresa manufacturera
(Polytechnic University of Puerto Rico, 1997-06)
The successful implementation of a continuous quality improvement process in a manufacturing enterprise requires that certain
vital conditions are present. It is also essential that those conditions be fully developed ...
Group technology and cellular manufacturing systems: an introduction
(Polytechnic University of Puerto Rico, 1997-12)
Global market competition is changing the nature of the present and future marketplace to a highly dynamic environment. Product variety is high and individual product demands are low. Also, customer's demand
for faster ...
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' ...