Universidad Tecnológica de Bolivar UTB (Colombia): últimos ingresos
Mostrando ítems 3021-3040 de 11668
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A structure-from-motion pipeline for topographic reconstructions using unmanned aerial vehicles and open source software
(Springer Verlag, 2018)In recent years, the generation of accurate topographic reconstructions has found applications ranging from geomorphic sciences to remote sensing and urban planning, among others. The production of high resolution, ... -
HoloEasy, a web application for computer generated holograms
(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 ... -
Object-oriented mathematical modeling for estimating electric vehicle’s range using modelica
(Springer Verlag, 2018)Electric vehicles (EVs) offer a great alternative for decarbonizing the transport sector. However, insufficient recharging infrastructure and limited range increase the driver’s ‘range anxiety’. Furthermore, the autonomy ... -
Failures Monitoring in Refrigeration Equipment
(Springer Verlag, 2018)The refrigerators are the responsible to assure the temperature and humidity conditions for perishable products stored in it. In this sense, it is necessary to guarantee its good performance at all times in order to preserve ... -
Avoidable and unavoidable exergetic destruction analysis of a nitric acid production plant
(American Society of Mechanical Engineers (ASME), 2018)Exergy analysis for Nitric acid production plants are very few and many are outdated. This study aims to support existing scientific studies and incite new investigations of exergy analysis in modern times. An advanced ... -
Microscopic shape from focus using white light interferometric fringes
(OSA - The Optical Society, 2018)In this work we study the use of a focus measure to improve the 3D reconstruction of low reflectivity microscopic samples using white light interference microscopy. Simulation and experimental results show the improved ... -
Mathematical model for assigning an optimal frequency of buses in an integrated transport system
(Springer Verlag, 2018)This paper proposes a mathematical model to estimate the frequency setting of the buses for a specific route on any given hour in public transportation systems. This model can be used for three different purposes: determine ... -
Parental competences and child resilience in the context of displacement in Colombia
(Fundacion para la Investigacion Social Avanzada, 2018)This paper presents results of a research that arose from the interest of studying the phenomenon of forced displacement as an adversity, which can be overcome because human beings have the competences to mitigate psychosocial ... -
Optimization of convective drying assisted by ultrasound for Mango Tommy (Mangifera indica L.)
(Blackwell Publishing Inc., 2018)Convective drying is a conventional method to prolong the shelf-life of foods that could negatively affect the product quality due to the long exposure time to high temperature. Ultrasound (US) has been used for reducing ... -
A particle swarm optimization approach to log-gabor filtering in fourier transform profilometry
(OSA - The Optical Society, 2018)In this work, we propose a particle Swarm Optimization approach to Log-Gabor filtering in Fourier transform profilometry. Encouraging experimental results show the advantage of the proposed method. © 2018 The Author(s) -
The Colombian press and the San José galleon: A political and legal interest but not numismatic
(Ediciones Hecate, 2018)This article presents the low interest of the Colombian press in the light of numismatic heritage found in 2015 in the wreck of the San José galleon, warship sunk in Barú (near Cartagena de Indias) in 1708. The opinions ... -
A no-hair theorem for black holes in f(R) gravity
(Institute of Physics Publishing, 2018)In this work we present a no-hair theorem which discards the existence of four-dimensional asymptotically flat, static and spherically symmetric or stationary axisymmetric, non-trivial black holes in the frame of f (R) ... -
An inventory model of three-layer supply chain of wood and furniture industry in the Caribbean region of Colombia
(Taylor and Francis, 2018)This article deals with a mathematical model for multi-item inventory system under a collaborative scheme in a three-level supply chain consisting of multiple raw material suppliers, multiple manufacturers and multiple ... -
Large scale integration of renewable energy sources (RES) in the future Colombian energy system
(Elsevier Ltd, 2019)The diversification of the energy matrix, including larger shares of Renewable Energy Sources (RES), is a significant part of the Colombian energy strategy towards a sustainable and more secure energy system. Historically, ... -
An experimental study on deformation analysis of an indented pipe via fringe projection profilometry and digital image correlation
(OSA - The Optical Society, 2018)We studied the surface displacement of a steel pipe during indentation via Fringe Projection Profilometry and 2D-Digital Image Correlation. Experimental results show that a 3D strain approximation is possible for comparison ... -
Preface
(Springer Verlag, 2018) -
Adaptive filtering of interference fringes by polar transformation and empirical mode decomposition
(OSA - The Optical Society, 2018)We designed an adaptive filter based on empirical mode decomposition for the removal of fringes in an interference microscopy image. Promising results show the possibility for extended depth-of-field imaging. © 2018 The Author (s) -
Instrumented insole for plantar pressure measurement in sports
(Springer Verlag, 2018)Novel technological aids have been developed to evaluate sport performance. Among these tools there are wearable sensors that monitor physical and physiological variables during the execution of exercises. This paper ... -
A generalized passivity-based control approach for power compensation in distribution systems using electrical energy storage systems
(Elsevier Ltd, 2018)This paper presents a generalized interconnection and damping assignment passivity-based control (IDA-PBC) for electric energy storage systems (EESS) such as: superconducting magnetic energy storage (SMES) and supercapacitor ... -
Accounting for attitudes on parking choice: An integrated choice and latent variable approach
(Elsevier Ltd, 2018)The well-differentiated impact that parking supply options produce on congestion, pollution and land consumption arouses the interest of policy makers for a better understanding of car user's behavior when choosing a parking ...