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Programmable diffractive optical elements with applicability in ophthalmic optics
(Sociedad Espanola de Optica, 2017)
This paper presents results of the research related with the development of the doctoral thesis of Lenny Alexandra Romero Pérez. This work covers the design, the characterization and the analysis of several programmable ...
Work conditions assessment in manufacturing organizations in the colombian caribbean region
(Universidad de Antioquia, 2016)
Deficient work conditions have been linked with an epidemic of injury and illness in low and middle-income countries. A group of 22 companies from different sectors was selected in order to carry out a diagnosis related ...
Optimal selection of conductors in distribution systems using tabu search algorithm [Selección óptima de conductores en sistemas de distribución empleando el algoritmo búsqueda tabú]
(Universidad de Tarapaca, 2018)
An efficient methodology for the optimal selection of conductor in distribution systems through the implementation of the metaheuristic optimization technique called Tabu Search is presented in this paper. To represent the ...
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 ...
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) ...
Composite Likelihood Inference for Multivariate Gaussian Random Fields
(Springer New York LLC, 2016)
In the recent years, there has been a growing interest in proposing covariance models for multivariate Gaussian random fields. Some of these covariance models are very flexible and can capture both the marginal and the ...
Newman–Janis Ansatz in conformastatic spacetimes
(Springer New York LLC, 2016)
The Newman–Janis Ansatz was used first to obtain the stationary Kerr metric from the static Schwarzschild metric. Many works have been devoted to investigate the physical significance of this Ansatz, but no definite answer ...
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.