Browsing Revista Politechnê by Subject "Polytechnic University of Puerto Rico--Subject headings--Unassigned"
Now showing items 81-97 of 97
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Sizing a solar cell array for a solar powered lawnmower machine
(Polytechnic University of Puerto Rico, 1996-12)This project focuses on the sizing and control of a photovoltaic (PV) collector of a solar lawnmower prototype to satisfy the geographical orientation of Puerto Rico and its available sunlight. The design, analysis and ... -
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 ... -
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 ... -
Study of the density of states in amorphous Silicon-Hydrogen using the semiconductor/electrolyte system
(Polytechnic University of Puerto Rico, 1996-12)Localized states in amorphous Silicon-Hydrogen are studied by pulsed measurements on the a-Si:H/electrolyte (S/E) system. The S/E interface is essentially blocking to current flow. As a result, surface space-charge layers, ... -
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 ... -
Techniques for Functional and Structural Testing of Software
(Universidad Politécnica de Puerto Rico, 1999-12)This work will present the structural and functional approaches as software testing process techniques. The software testing process is one that consumes at least half of the labor expended to produce a working program. ... -
Theory of constraints will really improve your competitiveness
(Polytechnic University of Puerto Rico, 1992-12)The Theory of Constraints (TOC) is a new management philosophy created by Eliyahu M. Goldratt to help an enterprise reach its goal. In order to accomplish this objective a company must change the paradigm of costs an follow ... -
Tip Optimization for Near-Field Scanning Optical Microscopy by Laser-Heated Pulling
(Polytechnic University of Puerto Rico, 2005)The ability to manufacture reproducible and low-cost probe tips is critical for the improvement of near-field scanning optical microscopy as both the resolution and efficiency of the apparatus depend on the tip's geometrical ... -
Tools for Predicting Uncertainty and confidence Intervals in Radiometric Data Products
(Universidad Politécnica de Puerto Rico, 1999-12)Spaced-based observations of atmospheric energetics, such as those provided by NASA’s Clouds and the Earth’s Radiant Energy System (CERES), produce data products intended to be shared with the larger scientific community ... -
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 ... -
Variables that may predict the behavior of a student in his/her university life at Polytechnic University of Puerto Rico
(Polytechnic University of Puerto Rico, 1996-06)The objective of this study is to establish the relationship, if any. between the Graduation Grade Point Average (GPA) of students that began as first year studentes at Polytechnic University of Puerto Rico and remained ... -
Vector quantization
(Polytechnic University of Puerto Rico, 1996-12)Data compression is the packing of data, the process of transforming a body data into a smaller representation from which the original or an approximation of the original can be computed at a later time. Most data sources ... -
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 ... -
The Vision of Space Exploration - Life in the Universe Hispanics in Engineering National Conference
(Polytechnic University of Puerto Rico, 2006)Closing dinner speech of the Hispanics in Engineering National Conference by Eng. Orlando Figueroa. -
Water Quantity and Quality Issues in El Paso Del Norte Region
(Polytechnic University of Puerto Rico, 2005)The El Paso del Norte Region faces challenges in the administration of its water resources in the way water is managed due to conflicts with different political jurisdictions and existing laws governing water management ... -
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 ... -
Wireless LANs
(Polytechnic University of Puerto Rico, 2000-12)There are three digital wireless technologies: CDMA (Code Division Multiple Access), TDMA (Time Division Multiple access), and GSM (Global System for Mobile Communication). Ethernet is a standard LAN protocol that operates ...