Productos de investigación: Envíos recientes
Mostrando ítems 1301-1320 de 1398
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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 ... -
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 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 ... -
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) -
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, ... -
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 ... -
Preface
(Springer Verlag, 2018) -
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 ... -
Colombian Andean thermal springs: reservoir of thermophilic anaerobic bacteria producing hydrolytic enzymes
(Springer Tokyo, 2019)Anaerobic cultivable microbial communities in thermal springs producing hydrolytic enzymes were studied. Thermal water samples from seven thermal springs located in the Andean volcanic belt, in the eastern and central ... -
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 ... -
Current control mode in PV systems integrated with DC-DC converters for MPPT: An IDA-PBC approach
(IEEE Computer Society, 2018)In this paper, an interconnection and damping assignment passivity-based control (IDA-PBC) theory is employed to obtain maximum power point tracking (MPPT) for a photovoltaic (PV) module. A current control mode is selected ... -
Ecotoxicological assessment of perchlorate using in vitro and in vivo assays
(Springer Verlag, 2018)Perchlorate is an inorganic ion widespread in the environment, generated as a natural and anthropogenic pollutant, with known endocrine disruption properties in the thyroid gland. Nonetheless, there are few reports of its ... -
An a posteriori error estimator for a non-conforming domain decomposition method for a harmonic elastodynamics equation
(Global Science Press, 2018)We develop a reliable residual-based a posteriori error estimator for a nonconforming method with non-matching meshes for a harmonic elastodynamics equation and show that the approximation method converges with an optimal ... -
Topological Invariants of Principal G-Bundles with Singularities
(Pleiades Publishing, 2018)principal G-bundle with singularities is a principal bundle π: P¯ → M with structure group G¯ which reduces to a subgroup G ⊂ G¯ on the set M \ Σ, where M is an n-dimensional compact manifold and Σ ⊂ M is a k-dimensional ... -
Genetic Advances in Post-traumatic Stress Disorder
(Elsevier Doyma, 2018)Post-traumatic stress disorder, or PTSD, is a condition that affects a subgroup of individuals that have suffered a previous traumatic event capable of generating changes at a psychological and behavioural level. These ... -
Indirect IDA-PBC for active and reactive power support in distribution networks using SMES systems with PWM-CSC
(Elsevier Ltd, 2018)In this paper an indirect interconnection and damping assignment passivity-based control (IDA-PBC) applied to the three-phase superconducting magnetic energy storage systems (SMES) is proposed to support active and reactive ... -
DERs integration in microgrids using VSCs via proportional feedback linearization control: Supercapacitors and distributed generators
(Elsevier Ltd, 2018)This paper presents an exact feedback linearization control strategy for voltage source converters (VSCs) applied to the integration of distributed energy resources (DERs) in smart distribution systems and microgrids. ... -
Subatmospheric pressure in a water draining pipeline with an air pocket
(Taylor and Francis Ltd., 2018)An air pocket’s behaviour inside of a pipeline during transient conditions is of great importance due to its effect on the safety of the hydraulic system and the complexity of modeling its behaviour. The emptying process ... -
Rigid water column model for simulating the emptying process in a pipeline using pressurized air
(American Society of Civil Engineers (ASCE), 2018)This paper presents a mathematical model for analyzing the emptying process in a pipeline using pressurized air. The rigid water column model (RWCM) is used to analyze the transient phenomena that occur during the emptying ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.