Estructura de costos y tarifas de los servicios de acueducto y alcantarillado: Quince años de la promulgación del nuevo régimen regulatorio Autores: Aguirre Gómez, Fernando Augusto

“…The new regulatory regime applied to companies providing services and sewerage in the country has failed to get the appropriate levels of efficiency required by the sector, because in the different components of its costs structure incorporates a number of factors that significantly raise their levels, moving the effect of higher fees to the users of these services. …”

Manejo de los materiales plásticos reciclados y mejoramiento de sus propiedades Autores: Rubiano Fernández, José Luis, Pérez Silva, Marco Antonio, Barrera Valero, Osvaldo Augusto, Orozco, Wilman, Quesada, Franz, Diaz, Miguel Ángel, Gaviria, Luis Antonio

“…This paper is a study of recycled plastic materials and its applications. It begins with a review of the concept of plastic, its properties and applications. …”

Prótesis Transfemoral Electromecánica, Controlada a Base de Señales Mioeléctricas Autores: Andrade Maquilón, Mauricio Ernesto, Paz Ruíz, Nelson Emilio

“…In addition, developing optimum biomechanical processes and having a balance between economy and quality.…”

Aplicación de un Sistema Robusto al Control de Posición de un Cilindro Neumático, expuesto a perturbaciones. Autores: Sandoval Rodríguez, Camilo Leonardo, Meza Pedrozo, Rodrigo

“…In industrial applications, the processes are very complex, with delays, disturbances and non-linear behavior, an this is the case for pneumatic systems. …”

Influencia del Lecho Marino, en el Transporte de Energía Undimotriz Transmitida por las Olas. Autores: Murcia Pacheco, Juan Manuel, Franco Camacho, Yesid Aurelio, Sandoval Rodríguez, Camilo Leonardo

“…In this way, renewable energy sources have been studied and among them the wave energy, which is studied in this paper. …”

Diseño de un Controlador por Torque Calculado CTC de un Robot Manipulador Tipo SCARA Autores: Valencia, Guillermo E., Turizo, John C., Sanjuan, Marco E.

“…A control by reference model Computed Torque Control (CTC) was implemented through simulation on a SCARAtype robot manipulator with four degrees of freedom, in order to carry out the study of the benefits of the algorithm to a set of tests. The CTC is a classical law in control of industrial manipulators and it uses the feedback of a signal that cancels the effects of gravity, friction, inertia tensor of the manipulator, coriolis and centrifugal forces. …”

Ejemplos de Aplicación de la Optimización Estructural mediante Elementos Finitos Autores: Acosta, Lina M.

“…In the conventional design process, the applied methodology is directly related to the designer’s experience and the constraints of the project itself; it is a methodology based on test-error, that could become expensive; it is basically based on decisions taken according to the criteria of the designer, who usually defines what should be modified: material, geometry, dimensions, until reaching the final design that not always has into account analysis for optimization that allows for a better design. …”

Consideraciones para el Modelado y Simulación de un Accionamiento de Reluctancia Conmutada Autores: Castaño, Sandra M., Maixe, Javier

“…Finally, this article explains the use and operation of multiple-motor drive models which have been entirely developed using Matlab-Simulink.…”

Estudio de Calidad de la Energía Implementando Filtros Activos para la Corrección de Armónicos Autores: Cavieles Rojas, Nairo J., Acosta Aguazaco, Juan H., Estupiñán Pérez, Elkin E.

“…The Universidad Antonio Nariño – Tunja, is promoting studies about power quality to characterize the electrical signals, since industry in Boyaca has been growing in the last decades, and the mining sector has contributed to the progressive consumption of electrical energy using machines with powerful motors. …”

Construcción y evaluación de una tobera a escala menor basada en material compuesto para cohetes de órbita baja Autores: Quiñonez, Diego, Lizcano, Yamit, Vasquez, Cristian, Maldonado, Jorge, Portocarrero, Julián

“…The obtained results showed the effective behavior of the system for 60 seconds of flight using a particulate composite material with 70% of type 2 ceramic and 30% of polymeric material for the thermal zone and configuration glass fiber matt of 225 g/m2 – glass fiber Voland 320 g/m2 tilted 0º - glass fiber matt of 225 g/m2 – carbon fiber tilted 0º…”

A machine vision system using circular autoregressive models for rapid recognition of salmonella typhimurium Autores: Trujillo, O., Griffis, C. L., Li, Y., Slavik, M. F.

“…A feature weighting classifier was trained with ten images belonging to each shape class (rod shape and circle shape). …”

Modelos Asociativos: Una necesidad del sector madera y muebles de la ciudad de Barranquilla para mejorar su productividad y competitividad Autores: Junco Colina, Danilo Antonio

“…Basically looking for the relevance between the needings for the wood and furniture sector in the city of Barranquilla, its alliances with universities and the goverment to obtain a better and more productive, to be more competitive in regional, national and international markets. …”

Estrategias para la gestión de la innovación: Pasado, Presente y Futuro Autores: Yepes, Nelson V

“…The innovation is developed as one of the primary factors in developing economies, where its study becomes the reason and essence of the programs and projects of institutions and countries. …”

Métodos Computacionales para el Reconocimiento de Patrones Mioeléctricos en el Control de Exoesqueletos Robóticos: una Revisión Autores: López Delis, Alberto, Ruiz Olaya, Andrés F.

Predictive microbiology: a rising science Autores: Yarce, Cristhian J.

“…These models are important for reaching robust and reliable predictions regarding the behavior of microorganisms in food. This article presents a revision of microbiological predictive models, applied to the food field. …”

Filter banks system in frequency domain for digital imaging segmentation in controlling crop growth Autores: González B., Javier E., Puentes, Nestor, Verdugo, Diego

“…We used the filter bank technique in the frequency domain, because the frequency domain has presented positive results in order to highlight the textures of growing plants. …”

Diseño y desarrollo de una aplicación móvil para caracterizar y clasificar sonidos pulmonares basada en análisis espectral y Transformada Wavelet Autores: Rios de Antonio, Nelson Fabián, Sosa Ramírez, Germán David, Velásquez Clavijo, Fabián

Impact of the underground mining on aquifers: perspectives in the Colombian context Autores: Pérez, Anibal J.

“…Results also show important differences between the discrete fracture and the equivalent porous media approach that may affect the appropriate design of control and mitigation measures.…”

Robust parameterizations of Automatic Speech Recognition (ASR) in communications networks Autores: Gómez Cajas, Diego Ferney, Sepúlveda Sepúlveda, Franklin Alexander, Pinto Serrano, Mario Augusto

“…In this paper we address the problem of Automatic Speech Recognition (ASR) when the speech signal has been transmitted over communications networks. In these conditions, the main causes of distortion in an ASR system are ambient noise, transmission errors and the encoding-decoding process [32]. …”

La The philosophy of engineering in the context of the formation of the engineer Autores: Romero, Pedro A., Romero, Carmen H., Rojas, Kervin B.

“…To develop new applications or theoretical knowledge in the area of engineering, it is necessary to use appropriate tools belonging to these domains of knowledge, almost always to the hand of the developments of physics, chemistry and other sciences, so that the new advances and developments occur in the light of the developments of the sciences which have been generated.…”