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Flexible Liquid Crystal Polymer based complementary split ring resonator loaded quarter mode substrate integrated waveguide filters for compact and wearable broadband RF applications
(Institute of Electrical and Electronics Engineers Inc., 2014)In this paper the flexible Liquid Crystal Polymer (LCP) substrate is used to implement broadband wearable/foldable conformal bandpass filters that use compact cavity resonators working under the principle of quarter mode ... -
Forecasting foreign exchange rates in Colombia assuming PPP conditions: Empirical evidence using VAR
(Cartagena de Indias, 2009)This document examines exchange rate forecasts during the 1995-2005 period, using a Purchasing Power of Parity Exchange Rate Model (PPPER). Our first finding is that the computed forecasts seem to validate the use of this ... -
Form and void in Severo Sarduy's poetry
(Cartagena de Indias, 2013)In this essay we will elevate models on simulated models and/or figures in Severo Sarduy's poetry which can reveal the relationship between form and void and the philological and philosophical implications of that correlation. -
Formación artística y desarrollo profesional : el caso de la profesionalización de artistas de la Universidad del Atlántico /
(2020)El articulo analiza los resultados en el desarrollo profesional de un grupo de artistas egresados de la primera cohorte de profesionalización en Licenciatura en Música de la Universidad del Atlántico, graduada en agosto ... -
Fotografía en América Latina. Imágenes e Identidades a Través del Tiempo y el Espacio.
(Cartagena de Indias, 2019)El Instituto de Estudios Peruanos publicó en el verano de 2018 -bajo la coordinación editorial de las antropólogas Gisela Cánepa Koch e Ingrid Kummels- esta recopilación de estudios de caso que exploran el redescubrimiento, ... -
Fractional Fourier analysis of random signals and the notion of α -Stationarity of the Wigner-Ville distribution
(2013)In this paper, a generalized notion of wide-sense α-stationarity for random signals is presented. The notion of stationarity is fundamental in the Fourier analysis of random signals. For this purpose, a definition of the ... -
Fractional Fourier transform method of chirped fringe pattern analysis for profilometry
(Cartagena de Indias, 2020)A method is proposed to obtain the 3D profile of an object or the shape of a wavefront. The analysis of linearly chirped cosenoidal fringes is performed in the fractional Fourier domain. © OSA 2020, © 2020 The Author(s) -
Fractional sampling theorem for -bandlimited random signals and its relation to the von neumann ergodic theorem
(Institute of Electrical and Electronics Engineers Inc., 2014)Considering that fractional correlation function and the fractional power spectral density, for -stationary random signals, form a fractional Fourier transform pair. We present an interpolation formula to estimate a random ... -
Fracture Dynamic Analysis of Cracked Reissner Plates Using the Boundary Element Method
(Cartagena de IndiasIngeniería Mecánica, 2020-05-15)This work presents a Dual Boundary Element Method/Dual Reciprocity Boundary Element Method formulation for the dynamic analysis of fractured shear deformable plates. Equations for the Dual Boundary Element Method, including ... -
Francoist representations in the monetary issues of the reign of Juan Carlos I (1975-2014)
(Cartagena de Indias, 2021)This paper contains a review of all the legal tender coins that display an iconography associated with the Franco dictatorship during the reign of Juan Carlos I of Spain (1975-2014), except for collectible coins (commemorative ... -
Fray pedro of santa maría de ois'pilgrimage seen by the journal as 4 aldeas
(Cartagena de Indias, 2020)The following research article presents an exhaustive compilation of the news in the local journal As 4 aldeas related to the pilgrimage of Fray Pedro de Santa María de Ois (Coirós, A Corunna); a historic celebration of a ... -
Freedom and opportunity. Distributive justice considerations in amartya sen and philippe van parijs
(Cartagena de Indias, 2021)The purpose of this essay is to approach the conceptions of distributive justice in two contemporary economists: Amartya Sen and Philippe Van Parijs. To this end, the notion of capabilities that Martha Nussbaum presents ... -
Fringe quality map for fringe projection profilometry in LabVIEW
(Sociedad Espanola de Optica, 2018)The phase retrieval process is mainly affected by local shadows, irregular surface brightness and fringe discontinuities. To overcome these problems, image-processing strategies are carried out such as binary masks, ... -
From a Home-Area-Network to a Secure Internet of Things Application
(Springer, 2019)In this paper, we present a secure system to control devices at home through the web, which we implement based on the Do It Yourself (DIY) culture. We use a model based on the Goal Question Metric approach to evaluate the ... -
Full State Feedback of DC-Motor Position and Speed Control Using LQR and Kalman Filter
(Cartagena de Indias, 2022)DC motors are used in various industrial, robotic and motion control applications, and generally angular position and speed are used as the main control variables. This paper presents the design of an LQR controller with ... -
Furan as Impurity in Green Ethylene and Its Effects on the Productivity of Random Ethylene–Propylene Copolymer Synthesis and Its Thermal and Mechanical Properties
(Cartagena de Indias, 2023)The presence of impurities such as H2S, thiols, ketones, and permanent gases in propylene of fossil origin and their use in the polypropylene production process affect the efficiency of the synthesis and the mechanical ... -
FUZZY GAIN SCHEDULING: COMPARISON OF THE CONTROL STRATEGY
(Cartagena de Indias, 2022)The use of better control strategies has a great interest in all kinds of industries in recent years since it allows better use of resources and therefore becomes an important factor in reducing costs associated with ... -
Fuzzy logic methodology to study the behavior of energy transformation processes based on statistics T2and Q
(Cartagena de Indias, 2020-10)In the processes of energy transformation, to carry out an adequate follow-up of the process parameters represent an opportunity to propose strategies to improve the processes' performance. For this reason, it is essential ... -
Galvis, L. A., Rodríguez, G., & Ovallos, S. (2021). Quality of work life in Cartagena, Barranquilla, and Santa Marta. Cuadernos de Economía, 40(82), 307-338.
(Cartagena de Indias, 2021)The main cities of the Colombian Caribbean have recently reached the lowest unemployment figures in the country. However, they exhibit the highest informality rates. The objective of this paper is to analyse the situation ... -
Gender differences in math and reading: Performance, self-concept and expectations
(Cartagena de Indias, 2020)Previous studies show gender differences in math and language performance, mainly in adolescents. In this study, we aim to evaluate gender differences in self-concept, subjective value, expectations and academic performance, ...
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.