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  1. Published 2021

    Influencia del Lecho Marino, en el Transporte de Energía Undimotriz Transmitida por las Olas. Authors: 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. …”
    info:eu-repo/semantics/publishedVersion
    3681
  2. Published 2021

    Diseño de un Controlador por Torque Calculado CTC de un Robot Manipulador Tipo SCARA Authors: 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. …”
    info:eu-repo/semantics/publishedVersion
    3682
  3. Published 2021

    Ejemplos de Aplicación de la Optimización Estructural mediante Elementos Finitos Authors: 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. …”
    info:eu-repo/semantics/publishedVersion
    3683
  4. Published 2021

    Consideraciones para el Modelado y Simulación de un Accionamiento de Reluctancia Conmutada Authors: 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.…”
    info:eu-repo/semantics/publishedVersion
    3684
  5. Published 2021

    Estudio de Calidad de la Energía Implementando Filtros Activos para la Corrección de Armónicos Authors: 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. …”
    info:eu-repo/semantics/publishedVersion
    3685
  6. Published 2021

    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…”
    info:eu-repo/semantics/publishedVersion
    3686
  7. Published 2021

    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). …”
    info:eu-repo/semantics/publishedVersion
    3687
  8. Published 2021

    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. …”
    info:eu-repo/semantics/publishedVersion
    3688
  9. Published 2021

    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. …”
    info:eu-repo/semantics/publishedVersion
    3689
  10. 3690
  11. Published 2021

    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. …”
    info:eu-repo/semantics/publishedVersion
    3691
  12. Published 2021

    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. …”
    info:eu-repo/semantics/publishedVersion
    3692
  13. 3693
  14. Published 2021

    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.…”
    info:eu-repo/semantics/publishedVersion
    3694
  15. Published 2021

    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]. …”
    info:eu-repo/semantics/publishedVersion
    3695
  16. Published 2021

    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.…”
    info:eu-repo/semantics/publishedVersion
    3696
  17. Published 2021

    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.…”
    info:eu-repo/semantics/publishedVersion
    3697
  18. Published 2021

    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.…”
    info:eu-repo/semantics/publishedVersion
    3698
  19. Published 2021

    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.…”
    info:eu-repo/semantics/publishedVersion
    3699
  20. Published 2021

    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. …”
    info:eu-repo/semantics/publishedVersion
    3700
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