Indexados Scopus: Envíos recientes
Mostrando ítems 1081-1100 de 1632
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Analysis of the relationship between the energy sector and some binding variables in sustainable development in Mexico during 2004-2010 [Análisis de la relación entre los subsidies al sector energético y algunas variables vinculantes en el desarrollo sostenible en México en el periodo 2004-2010]
(Centro de Investigacion y Docencia Economicas A.C.Negocios InternacionalesFacultad de Ciencias Económicas y Administrativas, 2018)The purpose of this paper is to investigate whether there is a significant correlation between energy subsidies in Mexico and some dimensions of sustainable development. In this sense are analyzed the CO2 emissions, subsidies ... -
Response of thin lightly-reinforced concrete walls under cyclic loading
(Elsevier LtdIngeniería CivilFacultad de Ingenierías, 2018)During the last two decades, thin concrete walls have been frequently used to brace mid- to high-rise buildings in some Latin American countries. This structural system differs significantly in terms of wall geometry and ... -
Reinforcing Effect of Carbon Nanotubes/Surfactant Dispersions in Portland Cement Pastes
(Hindawi LimitedCiencias BásicasFacultad de Ciencias Básicas, 2018)Decoupling the individual effects of multiwalled carbon nanotubes (MWCNTs) and surfactants when used as reinforcement materials in cement-based composites is aimed in this study. Powder MWCNTs were dispersed in deionized ... -
Short Communication: Pollution-and-greenhouse gases measurement system
(Elsevier B.V.Ingeniería AmbientalFacultad de Ingenierías, 2018)This paper presents the design, development and preliminary results of a sensor system that georeferences and measures atmospheric variables, polluting gases and particle pollution on ground level and lower troposphere ... -
Proposal of an indicator to measure the professionalization of election campaigns: The case of Colombia [Propuesta de un indicador para medir la profesionalización de las campañas electorales: El caso de Colombia]
(El Profesional de la InformacionComunicación y Relaciones CorporativasFacultad de Comunicación, 2018)An indicator is proposed that measures the degree of professionalization of presidential campaigns in political systems where there is high personalization and low institutionalization of political parties. The professionalization ... -
Silver nanoparticles obtained by aqueous or ethanolic aloe Vera extracts: An assessment of the antibacterial activity and mercury removal capability
(Hindawi LimitedIngeniería AmbientalCiencias BásicasFacultad de IngenieríasFacultad de Ciencias Básicas, 2018)Silver nanoparticles (AgNPs) were synthesized by chemical reduction of Ag+ ions (from silver nitrate AgNO3), using aqueous or ethanolic Aloe vera extracts as reducing, stabilizing, and size control agent. The nanop articles' ... -
Resource planning methodology based on simulation in clothing production lines [Metodología basada en simulación para la programación de recursos en líneas de confección]
(Revista EspaciosAdministración de EmpresasFacultad de Ciencias Económicas y Administrativas, 2018)The resource planning problem in production lines is increasingly complex due to the continuous changes in market trends, so it is important to develop methodologies that allow companies to achieve production objectives ... -
Relationship between art and language in disquisitions on modern and contemporary art contained in two colombian magazines [La relación entre arte y lenguaje en las disquisiciones sobre arte moderno y contemporáneo en dos revistas colombianas]
(Universidad EAFITComunicación y Relaciones CorporativasFacultad de Comunicación, 2018)This paper analizes how the editors and collaborators of Arte en Colombia and Re-Vista del arte y la arquitectura en Colombia magazines propose both the language and the narrative dimension as characteristics, either absent ... -
Reactivity of a Silica-Supported Mo Alkylidene Catalyst toward Alkanes: A DFT Study on the Metathesis of Propane
(American Chemical SocietyCiencias BásicasFacultad de Ciencias Básicas, 2018)The metathesis of alkanes is a process in which a given alkane is transformed into higher and lower homologues. Here, we carried out DFT calculations in order to get insights into the most favorable reaction pathway for ... -
Nelson-Siegel model for estimation of term structure of interest rates [Modelo de Charles B. Nelson y Andrew F. Siegel para la estimación de la estructura temporal de tasas de interés]
(Revista EspaciosIngeniería FinancieraFacultad de Ingenierías, 2018)This article explains the mathematical and market approaches that were considered for the creation of the model of estimation of the term structure of interest rates. Additionally a methodology is presented by which the ... -
Optimization of affine dynamic systems evolving with state suprema: New perspectives in maximum power point tracking control
(Institute of Electrical and Electronics Engineers Inc.Ciencias BásicasFacultad de Ciencias Básicas, 2018)This paper studies optimization of dynamic systems described by affine Functional Differential Equations (FDEs) involving a sup-operator. We deal with a class of FDEs-featured Optimal Control Problems (OCPs) in the presence ... -
Advances in optimal control of differential systems with the state suprema
(Institute of Electrical and Electronics Engineers Inc.Ciencias BásicasFacultad de Ciencias Básicas, 2018)This paper deals with a further development of analytic techniques for Optimal Control Problems (OCPs) involving differential systems with the state suprema. Differential equations evolving with state suprema (maxima) ... -
Numerical study of run-up oscillations over fringing reefs
(Coastal Education Research Foundation Inc.Ingeniería CivilFacultad de Ingenierías, 2018)Peláez-Zapata, D.S.; Montoya, R.D., and Osorio, A.F., 2018. Numerical study of run-up oscillations over fringing reefs. This work presents a numerical study of run-up oscillations over a typical fringing reef profile at ... -
On the minimax robust Kalman Filter: A bounded estimation resources approach
(Institute of Electrical and Electronics Engineers Inc.Ciencias BásicasFacultad de Ciencias Básicas, 2018)This paper is devoted to a generalization of the non-standard Kalman Filter (KF) introduced in [4]. We deal with some restrictions of the technical resources in the context of a state estimation problem and study a constrained ... -
Microsolvation of small cations and anions
(John Wiley and Sons Inc.Ciencias BásicasFacultad de Ciencias Básicas, 2018)Recent advances in the theoretical treatment of microsolvation of small ions, a problem with practical implications in chemistry, physics, and biology, are exposed. In particular, we discuss sound stochastic approaches to ... -
Photocatalysts pt/S-TiO2 obtained by photodeposition of pt on S-TiO2 synthesized from TiOSO4 through the integrated method sol-Gel/Solvothermal at low temperatures [Fotocatalizadores pt/S-TiO2 obtenidos por fotodeposición de pt sobre S-TiO2 sintetizado a partir de TiOSO4 a través del método integrado sol-Gel/Solvotermal a bajas temperaturas]
(Centro de Informacion TecnologicaIngeniería AmbientalFacultad de Ingenierías, 2018)Photoactive materials Pt/S-TiO2 were obtained by photodeposition of Pt on S-TiO2 photocatalyst synthesized from titanium oxysulfate (TiOSO4) using the integrated method sol-gel/solvothermal at low temperatures (250°C). The ... -
Microsolvation of F-
(Royal Society of ChemistryCiencias BásicasFacultad de Ciencias Básicas, 2018)A staggering structural diversity for the microsolvation of F- with up to six water molecules is uncovered in this work. Given the structural variety and the proximity in energy among several local minima, we show here ... -
Poesía y poética en el mono gramático (1970) de octavio paz
(University Library System, University of PittsburghCiencias SocialesFacultad de Ciencias Sociales y Humanas, 2018) -
Knowledge, transmission and application of merchandising tools [Conocimiento, transmisión y aplicación de las herramientas del merchandising]
(Revista EspaciosMercadeoFacultad de Ciencias Económicas y Administrativas, 2018)This article aims to determine the level of knowledge, transmission and application of the merchandising tools in minimarkets of the Medellín city. Initially, an approach was made to these establishments and administrators ... -
Internet of things baseline method to improve health sterilization in hospitals: An approach from electronic instrumentation and processing of steam quality
(IEEE Computer SocietyIngeniería en Energía;Ingeniería de Sistemas;Ingeniería de TelecomunicacionesFacultad de Ingenierías, 2018)Sterilization in hospitals is performed due to the need of attacking and killing bacteria that can be dangerous for patients when intervened with medical instrumentation. In that sense, sterilization autoclaves are used, ...