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Design of an automatically guided mechanical manipulator
(Polytechnic University of Puerto Rico, 1995-12)
An automatically guided mechanical manipulator is an electromechanical « device used for transportation and material handling. A combination of k electronics control and mechanics (mechatronics) design and analysis is » ...
Configuraciones proyectivas ortomodulares y retículos cúbicos
(Polytechnic University of Puerto Rico, 1995-12)
Orthomodular projective configurations and cubic lattices
The author shows the construction of a cubic, connected, orthomodular attice of height 3, from a connected, orthomodular, projective configuration and gives the ...
Compendio sobre diseño de plantas de tratamiento de aguas negras
(Polytechnic University of Puerto Rico, 1993-06)
This article presents the essential considerations for designing wastewater treatment plants. It also introduces a computer program to design wastewater treatment plants. The author used Basic to develop this program, which ...
Use of genetic algorithms in experimental design optimization and thermal property estimation
(Polytechnic University of Puerto Rico, 1997-06)
The goal of this paper is both to introduce the fields of experimental design optimization and thermal property estimation and to present Genetic Algorithm (GA) optimization method to the faculty of PUPR. This research ...
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 ...
Classification of nr-graphs
(Polytechnic University of Puerto Rico, 1997-06)
When all possible r-gons are inscribed in an n-gon, the resulting n-graph falls into one of the following three categories: s-regular (sr or strongly regular), //-regular, or regular (k-regular). The definitions and necessary ...
Design and analysis of multi-section eccentric shaft
(Polytechnic University of Puerto Rico, 1996-12)
In this report the preliminary design and analysis of multi-section eccentric shaft to be used on four-rotor Wankel rotary engine is discussed. Only a static analysis was performed due to time constraints. This novel design ...
Process control laboratory - bar code system
(Polytechnic University of Puerto Rico, 1996-06)
This paper presents the basic concepts of a bar code system using a PC-based architecture. This system was developed and implemented in the Industrial Engineering Process Control Laboratory. The main objective of this ...
Desarrollo del pensamiento crítico
(Polytechnic University of Puerto Rico, 1992-06)
This article presents the need of every human being to develop the ability
to think critically, free of every prejudice induced by the society. The
elements of the logic of thought are described. As an example to ...
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, ...