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Now showing items 81-90 of 113
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' ...
Design and implementation of a virtual keyboard to aid handicapped people to use computers
(Polytechnic University of Puerto Rico, 1997-12)
This article describes our Capstone Design Project. The project requirements were to design and implement an interface software, to create a virtual keyboard on screen, optimized for typing Spanish language, controlled by ...
Dynamic analysis of rigid pavements and bridges under moving vibrating trucks
(Polytechnic University of Puerto Rico, 1997-12)
The computer program UPR-PAVI2 was developed to perform the dynamic analysis of a pavement slab or a bridge superstructure loaded with moving vibrating trucks. UPR-PAVI2 can model the soil, slab and truck, considering their ...
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 ...
Strain gauge and micrometer instrumentation of a truss structure
(Polytechnic University of Puerto Rico, 1997-12)
This project was performed as part of the Structural Analysis courses in order to compare theoretical results of the response of simple structures with the experimental results obtained at the Structures Engineering ...
Determination of interface roughness and its correlation in amorphous-silicon/ amorphous-germanium multilayers
(Polytechnic University of Puerto Rico, 1996-06)
The importance of surfaces and interfaces of materials is increasing in many technological areas. In the microelectronic industry, for example, the J current trend is toward even faster and smaller electronic devices. ...
Perspectivas futuras de la demanda energética mundial: el enfoque social de un problema global
(Polytechnic University of Puerto Rico, 1996-06)
Future perspectives of the energy demand of the world: social focusing of a global problem This article attempts explaining the short- and long-range perspectives of energy consumption as a function of social factors such ...
Simulación digital para verificación de diseño y sus aplicaciones en el desarrollo de pruebas automatizadas
(Polytechnic University of Puerto Rico, 1992-06)
This paper presents the digital simulator as the tool for the computerized analysis of digital logic circuits. Among the topics discussed in the study are the behaviour of digital circuits, the development of vectors to ...
Función para la entrada de datos en programas escritos utilizando el compilador QuickBasic
(Polytechnic University of Puerto Rico, 1992-06)
This document shows a data entry function written in the QUICKBASIC version of the BASIC computer programming language that can be used for the development of engineering application programs. The function uses many of the ...
Diseño de experimentos para una de las líneas de llenado y empaque en una industria farmacéutica local
(Polytechnic University of Puerto Rico, 1994-06)
A local pharmaceutical company has to reduce the number of complaints from customers who receive its products in broken or cracked glass bottles. In this paper we discuss an experiment to establish parameters to guarantee ...