"La región del Alto Golfo de California (AGC) posee gran interés biológico, geológico, químico y físico debido a sus características endémicas, que han sido fuertemente modificadas por actividades humanas en el último siglo. El conocimiento del transporte de sedimentos en…

RESUMO: Apesar do grande volume de informações no Brasil sobre atributos dos solos e distribuição na paisagem, surgem vários problemas quando se procura usá-los para planejamento de uso da terra, em particular pequenas áreas como comunidades rurais. No bioma Cerrado,…

Effective document retrieval using domain knowledge and semantics is one of the major challenges in Information Retrieval. Over the last years, there has been a growing interest in ontologies as an artifact for human knowledge representation and a critical component…

La presente tesis de grado “Diseño y construcción de un horno de crisol para fundición utilizando gas natural” tiene como objetivo general el diseño y construcción de un prototipo de horno para la fundición de metales no ferrosos, utilizando un…

A fuzzy controller is usually designed by formulating the knowledge of a human expert into a set of linguistic variables and fuzzy rules. As it is well known, the use of prior knowledge can dramatically improve the performance and quality…

There exists a large amount of knowledge representation models. But most of them have significant limitations at the epistemic level. They do not have explanatory power. Most of them do not have means to represent some functional needs to work…

Metrics used on development of expert systems is not a well investigated problem area. This article suggests some metrics to be used to measure the maturity of the conceptualization process and the complexity of the decision process in the problem…

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This paper introduces the system simulation technique and looks for potential application in the biodiesel agribusiness. The simulation basics are presented. It's described the components of a simulation model, the models classification and the model construction process. Some uses in…

This paper describes the first stages of a project focusing on the use of preservice-teacher-generated e-Portfolios as a means of documenting and assessing inquiry-based teaching and learning. The project is designed to explore ways in which preservice teacher-created e-Portfolios can…