Construcción y evaluación de una tobera a escala menor basada en material compuesto para cohetes de órbita baja Authors: 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 Authors: 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 Authors: 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 Authors: 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 Authors: López Delis, Alberto, Ruiz Olaya, Andrés F.

Predictive microbiology: a rising science Authors: 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 Authors: 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 Authors: Rios de Antonio, Nelson Fabián, Sosa Ramírez, Germán David, Velásquez Clavijo, Fabián

Impact of the underground mining on aquifers: perspectives in the Colombian context Authors: 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 Authors: 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 Authors: 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.…”

Development of equations for tuning pid controllers applied to temperature control in heat exchangers Authors: Duarte Forero, Jorge, Amador Diaz, German

“…In this article presents the development of a tuning equations for PID controllers based on the formulation of a new comprehensive performance criterion called FAD ®, which aims error minimizing deviation above or below the Set Point to regulatory control, depending on the restrictions of a specific process that can be approximated through a model represented by a transfer function FOPDT.…”

Automatic Classification of mechanical vibration patterns in rotating machinery affected by unbalance Authors: Sandoval Rodríguez, Camilo Leonardo, Barros, Andres Alejandro, Herreño Ávila, Sergio Alberto

“…The results show the RMS as the best performing descriptor for classification showed.…”

Segmentation and classification of SAR imagery on flood zones in Colombia, a computing tool for disaster prevention Authors: Avendaño Pérez, Jonathan, Parra Plazas, Jaime Alberto, Bayona, Jhon Fredy

“…According to the results, the SVM classifier presents better accuracy. However, the Bayes classifier had better results classifying pixels corresponding to populations even with little training data.…”

Computer model of a Σ-Δ modulator 2nd order for generating testing signals in analog integrated circuits Authors: Simancas, José G., Ortiz, José C.

“…Then, it was verified that it behaved according to the theory of Σ-Δ modulation by performing simulations. …”

Transmission system for biomedical signals through the general packet radio service GPRS Authors: Caicedo, Juan Manuel, Gutierrez, Edgar Willington, Correa, Karin

“…The access to health systems in Colombia for remote towns, is a difficulty that has motivated great efforts in finding solutions in telemedicine to shorten the distances through the use of communication systems between different cities. The apparent growth of cellular communications coverage in the country has prompted its use in various processes of telemedicine. …”

Modcod schemes’ analysis for DVB-RCS2 standard on Ka-Band HTS in Peru for rainy conditions Authors: Merino Acuña, Henry W., Cheé Cucalón, Christian

“…This paper shows the results of DVB-RCS2 standard evaluation for inbound satellite links between 2 Mbps and 10 Mbps in Peru, using Ka Band High Throughput Satellite. …”

Robot Socially assistive and for multimodal autonomous interaction Authors: Vélez Núñez, Paulina, Quintaguña, Alex

“…It has created a socially assistive robot endowed with anthropomorphic and cognitive features that gives you a sense of realism to the user, namely the user thinks for a considerable period of time that really is interacting with a living being.…”

Experimental Identification and Control of Solars Dryers for Wood Authors: Iglesias Vaillant, Yunier, Lussón Cervantes, Ania, Bonzon Henríquez, Jorge, Escalona Costa, Orlando, Ruiz García, Luis

“…In both cases, the mathematical model was obtained using experimental identification through Output Error. The best model is used for the controller Proportional Integral design in order to control the relative humidity in the drying chamber of a solar dryer for wood energy storage in water. …”

Use of geostatistical as analysis tool to formalize results in the field of electrosmog Authors: Leal Piedrahita, Alexánder

“…This paper shows an application of geostatistics as fundamental tool to the analysis of an variable whose behavior has dependence with its space distribution or localization, in a particular place. …”