Now showing items 311-330 of 703

    • H2 controller design on engine rotor rotation 

      Ramírez, V C A; Grisales-Noreña, L F; Montoya, O D (Cartagena de Indias, 2020)
      This article exposes the implementation of the H2 controller, which is rare in the literature because it is a more robust control and not only errors but also disturbances that can affect the dynamics of the control system ...
    • Hand anthropometric study in northern Colombia 

      Oviedo-Trespalacios O.; Martínez Buelvas L.; Hernández J.; Escobar J. (Taylor and Francis Ltd., 2017)
      The main purpose of this study is to gather information about the dimensions of the northern Colombian (Caribbean region) population, focusing on the dimensions of the hand and comparing them with measurements from other ...
    • Harmonic analysis of shear deformable orthotropic cracked plates using the Boundary Element Method 

      Useche J.; Albuquerque E.L.; Sollero P. (2012)
      In this work, the modal and harmonic analysis of orthotropic shear deformable cracked plates using a direct time-domain Boundary Element Method formulation based on the elastostatic fundamental solution of the problem is ...
    • Heuristic approach for optimal location and sizing of distributed generators in AC distribution networks 

      Bocanegra S.Y.; Montoya O.D. (World Scientific and Engineering Academy and Society, 2019)
      This paper addresses, from a heuristic point of view, the problem of the optimal location and sizing of distributed generators (DGs) in alternating-current distribution networks with radial topology. A master–slave ...
    • Heuristic Methodology for Planning AC Rural Medium-Voltage Distribution Grids 

      Montoya, Oscar Danilo; Serra, Federico Martin; De Angelo, Cristian Hernan; Chamorro, Harold R.; Alvarado-Barrios, Lazaro (Cartagena de Indias, 2021-08-20)
      The optimal expansion of AC medium-voltage distribution grids for rural applications is addressed in this study from a heuristic perspective. The optimal routes of a distribution feeder are selected by applying the concept ...
    • Hexagonal filters for ultrasound images 

      Contreras-Ortiz S.H.; Fox M.D. (2014)
      Most of the devices for acquisition and display of medical images use rectangular lattices even though there are other sampling strategies that can be more efficient in terms of resolution. This paper proposes an approach ...
    • Hierarchical agglomerative clustering of time-warped series 

      Kotas M.; Leski J.; Moroń T.; Guzmán J.G. (Springer Verlag, 2018)
      We have developed a procedure for hierarchical agglomerative clustering of time series data. To measure the dissimilarity between these data, we use classically the Euclidean distance or we apply the costs of the series ...
    • High impedance fault modeling and location for transmission line 

      García, Jose Doria; Orozco-Henao, Cesar; Leborgne, Roberto; Montoya, Oscar Danilo; Gil-González c, Walter (Cartagena de Indias, 2021-04-07)
      A fault in a power system generates economic losses, security problems, social problems and can even take human lives. Therefore, it is necessary to have an efficient fault location strategy to reduce the exposure time ...
    • Higher-order kinematic analyses of a planar parallel robot based on screw theory 

      Rodelo, M; Villa, J L; Yime, E (Cartagena de Indias, 2020)
      This paper presents the higher-order kinematic analyses of a planar parallel robot, addressed by means of the theory of screws. The reduced velocity, acceleration, jerk and hyper-jerk state for the end-effector of robot ...
    • Highly compact surface micromachined metamaterial circuits using multilayers of low-loss Benzocyclobutene for microwave and millimeter wave applications 

      Eliecer Sr. D.; Cheng X.; Yoon Y.-K. (2012)
      This work explores the implementation of highly compact three dimensional (3D) integrable metamaterial based transmission lines on a low resistivity CMOS grade silicon substrate for microwave and millimeter wave applications. ...
    • Hilo lector: introducción 

      (Universidad Tecnológica de Bolívar. Facultad de Ciencias Sociales y Humanidades. Programa de Comunicación social (Cartagena de IndiasCampus TecnológicoComunicación Social, 2020-01-28)
      Una serie de podcasts para estimular la lectura entre los estudiantes del programa de Comunicación Social y la Facultad de Ciencias sociales y Humanidades. Con nuestro Hilo se ha tejido una colección de lecturas de clásicos ...
    • HoloEasy, a web application for computer generated holograms 

      Patiño-Vanegas A.; Diaz-Pacheco L.L.; Patiño-Vanegas J.J.; Martínez-Santos J.C. (Springer Verlag, 2018)
      If the appropriate phase and/or amplitude profile is placed on a Diffractive Optical Element (DOE) it can practically generate an image of an object (hologram) by diffraction of the light. The problem of generating computer ...
    • How evolving network access and network management technologies are redefining the competitive wireless markets 

      Beltrán F.; Gutiérrez J.A.; Melús J.L. (2011)
      This paper examines some of the key problems users encounter when accessing current generation wireless networks. Using a case study of a hypothetical user, the authors explore the emerging services and the new broadband ...
    • How to manage generations? An Approach based on the Quality of Work Life 

      Martínez-Buelvas L.; Jaramillo-Naranjo O. (IBIMA Publishing, 2019)
      The objectives of this research are to examine whether there are significant differences in the perception of quality of work life among employees of three generational cohorts (i.e., Baby Boomers, Generation Xers and ...
    • Humor styles across 28 countries 

      Schermer J.A.; Rogoza R.; Kwiatkowska M.M.; Kowalski C.M.; Aquino S.; Ardi R.; Bolló H.; Branković M.; Chegeni R.; Crusius J.; Doroszuk M.; Enea V.; Truong T.K.H.; Iliško D.; Jukić T.; Kozarević E.; Kruger G.; Kurtić A.; Lange J.; Liik K.; Malik S.; Lins S.; Mamuti A.; Martinez-Buelvas L.; Mrkušić B.; Navarro-Carrillo G.; Oviedo-Trespalacios O.; Özsoy E.; Papazova E.; Park J.; Pylat N.; Riđić G.; Riđić O.; Skelić D.; Tan C.-S.; Torres-Marín J.; Uslu O.; Volkodav T.; Włodarczyk A.; Krammer G. (Springer, 2019)
      Responses to a measure of the four humor styles of affiliative, aggressive, self-enhancing, and self-defeating from the Humor Styles Questionnaire (HSQ; Martin et al. Journal of Research in Personality, 37(1), 48–75, 2003) ...
    • Hybrid calibration method for improving 3D measurement accuracy of structured light systems 

      Marrugo, Andrés G.; Vargas, Raul; Zhang, Song; Romero, Lenny A. (Cartagena de Indias, 2020-08-21)
      In structured-light systems, the lens distortions of the camera and the projector reduce the measurement accuracy when calibrated as a standard stereo-vision system. The conventional compensation via distortion coefficients ...
    • Hybrid calibration procedure for fringe projection profilometry based on stereo vision and polynomial fitting 

      Vargas, Raúl; Marrugo, G.; Romero, Lenny A.; Zhang, Song (Cartagena de IndiasIngeniería Mecatrónica, 2020-03-19)
      The key to accurate 3D shape measurement in fringe projection profilometry (FPP) is the proper calibration of the measurement system. Current calibration techniques rely on phase-coordinate mapping (PCM) or back-projection ...
    • Hybrid choice model for alternative fuelled vehicles [Modelación híbrida para la elección de vehículos con energías alternativas] 

      Soto J.J.; Cantillo V.; Arellana J. (Interciencia Association, 2014)
      The promotion of alternative fuelled vehicles for the reduction of atmospheric emissions is a highly discussed topic nowadays. It requires evaluating the potential demand and people's preferences for vehicles using these ...
    • Hybrid ga-socp approach for placement and sizing of distributed generators in DC networks 

      Montoya, Oscar Danilo; Gil-González, Walter; Grisales-Noreña, Luis Fernando (Cartagena de Indias, 2020-12-02)
      This research addresses the problem of the optimal location and sizing distributed generators (DGs) in direct current (DC) distribution networks from the combinatorial optimization. It is proposed a master–slave optimization ...
    • Hybrid Metaheuristic Optimization Methods for Optimal Location and Sizing DGs in DC Networks 

      Grisales-Noreña L.F.; Garzon-Rivera O.D.; Danilo Montoya O.; Ramos-Paja C.A. (Springer, 2019)
      In this paper is proposed a master-slave method for optimal location and sizing of distributed generators (DGs) in direct-current (DC) networks. In the master stage is used the genetic algorithm of Chu & Beasley (GA) for ...