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.…”

Development of equations for tuning pid controllers applied to temperature control in heat exchangers Autores: 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 Autores: 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 Autores: 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 Autores: 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 Autores: 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 Autores: 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 Autores: 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 Autores: 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 Autores: 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. …”

The cable transport and its role in sustainable urban mobility Autores: Quintero González, Julián, Ramírez Sosa, Yohana, Cortázar Ávila, Angélica

“…It is concluded that the cables transport systems and their various types, present adequate support against the mechanisms and strategies that make plans for sustainable urban mobility in cities, showing the main advantages being effective, safe, comfortable, fast systems and with significant benefits to the environment, an alternative that could contribute to improving the conditions of urban mobility in the cities of Latin America.…”

Dynamical brain connectivity markers in presymptomatic Alzheimer’s disease Autores: Suárez-Revelo, Jazmín X.

“…However, there are some genetic mutations that induce the onset of the neurocognitive symptoms before that age. The study of mutation carriers provides a unique opportunity to identify early preclinical changes related to Alzheimer's disease. …”

Methodology of design and hydrodynamic simulation of a Kaplan microturbine using computer tools Autores: Sanchéz-Ríos, Carlos Andrés, Cardona-Mancilla, Cristian Camilo, Sierra del Río, Jorge, Hincapié-Zuluaga, Diego Andrés

“…With the data obtained, it was generated a series of 2D and 3D performance curves, that allows to characterize the behavior of the Ka plan microturbine, taking into account the inclination of the blades and the impeller rotation speed, in order to determine the operation ranges in which the highest power output is obtained. …”

Diseño de un reactor UASB de escala laboratorio y bajo costo para investigación y enseñanza en laboratorios de bajos ingresos Autores: Trujillo-Arias, Yeison, Martínez-Rojas, Andrés, Luna-Wandurrada, Hector, Valderrama-Rincón, Juan D.

Quantitative Model in Security Informatics Risk Assessment Autores: Casanova, Andrés

“…This paper shows the importance of approaching in security Risk Assessment (RA) about Quantitative model in Risk Management. The RA has been calculated with qualitative method by different framework, for example: RISK IT FRAMEWORK (COBIT Component) [7], OCTAVE – ALLEGRO [8], MAGERIT V3 [9], FAIR [4], ISO 27005 [11], NIST800-30 [3]. …”

Método de regresión polinomial aplicado a la estimación de la señal de referencia de un sistema de filtrado adaptativo por cancelación para el tratamiento del desplazamiento de la... Autores: González Barajas, Javier E.

“…This article centres on the problem of removal of the displacement of the base line of the electrocardiogram (ECG) for which a system has been designed for the estimation of the sign of reference, by means of the method of polynominal regression, whisch takes different points of the electrocardiogram. …”

Editorial Autores: Reyes Herrera, Paula

“… La  segunda propuesta  es  un mapa  de  riesgos para  la  calidad  del  agua  de  un  sistema de abastecimiento municipal colombiano (Arias, Bejarano, Zafra 2014). La tercera propuesta es el uso de sistemas RFID para controlar grandes inventarios (Ramírez, Meléndez 2014).…”