Investigaciones: Envíos recientes
Mostrando ítems 1141-1160 de 1465
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Consistency in valuation: A practical guide
(Consejo Latinoamericano de Escuelas de Administracion, 2010)Practitioners and teachers easily break some consistency rules when conducting or teaching valuation of assets, which may lead to different results by different methods. In this short note we present a practical guide to ... -
C 3 matching for asymptotically flat spacetimes
(Institute of Physics Publishing, 2019)We propose a criterion for finding the minimum distance at which an interior solution of Einstein's equations can be matched with an exterior asymptotically flat solution. The location of the matching hypersurface is thus ... -
Bracing alternatives in tapered frames under wind loads
(2009)The level of risk caused by forces of the nature could be reduced with an appropriate intervention of vulnerability, since such threats cannot be reduced. One of the alternatives to reduce the structural vulnerability of ... -
Intentionality and interpersonal relations
(Springer New York, 2009)The present commentary re-introduces Heider's (1958) common-sense psychology and his treatment of intentionality, comparing and contrasting his theoretical formulations with those of Elstrup (IPBS: Integrative Psychological ... -
Mayorships with efficacious, efficient and effective public managementpreviously planned during the political campaign [Alcaldías con gestión pública eficaz, eficiente y efectiva planeada desde la campaña política]
(2010)In Colombian towns, public management is led by the mayor, appointed by popular election. During the political campaign, candidates implement different strategies to show the citizens they deserve to be elected. Political ... -
Comparison of adsorption of mercaptopropyltrimethoxysilane on amphiphilic TiO 2 and hydroxylated SiO 2
(2010)Alkylsilane 3-mercaptopropyltrimethoxysilane (3MPT) monolayers with a functional end group -SH were used to immobilize Ag colloidal nanoparticles on photoinduced amphiphilic TiO 2 and hydroxylated SiO 2 surfaces. The ... -
Risky tax shields and risky debt: An exploratory study
(2010)This article (1) identifies three sources of risk for tax shields (TS): Two of them are associated with debt risk and one is associated with operating risk. (2) A set of conditions for defining risky debt associated with ... -
Technology and market conditions toward a new competitive landscape in the wireless access market
(2010)This article argues that the wireless telecommunication market is about to witness a shift in business models and market structure as a result of the deployment of new broadband access technologies, spectrum management ... -
Prediction of RFID performance in supply chains
(2010)This paper discusses the challenges to wide-spread radio frequency identification (RFID) adoption in supply chains using the technology s-curve and the concept of buying hierarchy. A survey on RFID uptake in New Zealand ... -
Organizational management for innovation: Petrochemical sector case in Cartagena de Indias (Colombia)
(2010)This study was made within the framework of characterizing the petrochemical and plastic sector and aims to analyze different models of organizational management for innovation. The methodology used was that of multiple ... -
An infinite family of relativistic magnetized finite thin disks
(Institute of Physics Publishing, 2011)An infinite family of relativistic finite thin disk model with magnetic field is presented. The model is obtained for solving the Einstein-Maxwell equations for static spacetimes by means of the Horsk-Mitskievitch generating ... -
Stability Analysis of Single-Phase Low-Voltage AC Microgrids with Constant Power Terminals
(Institute of Electrical and Electronics Engineers Inc., 2019)This express brief presents the stability analysis of single-phase microgrids (SP-MG) operating under master-slave connection with constant power terminals. The SP-MG is composed of linear elements, nonlinear loads, and ... -
Analytical solution to the circularity problem in the discounted cash flow valuation framework
(2011)In this paper we propose an analytical solution to the circularity problem between value and cost of capital. Our solution is derived starting from a central principle of finance that relates value today to value, cash ... -
How evolving network access and network management technologies are redefining the competitive wireless markets
(2011)This paper examines some of the key problems users encounter when accessing current generation wireless networks. Using a case study of a hypothetical user, the authors explore the emerging services and the new broadband ... -
Electromagnetic sources distributed on shells in a Schwarzschild background
(2011)In the Introduction we briefly recall our previous results on stationary electromagnetic fields on black hole backgrounds and the use of spin-weighted spherical harmonics. We then discuss static electric and magnetic test ... -
Design of a CMG for underwater robots
(2011)In this paper we present a Control Moment Gyroscope (CMG) for underwater robots. This is a single gimbal CMG with pyramid type configuration. This device has a modular design and is self-contained (i.e., all mechanical and ... -
Steric and chain length effects in the (√(3) × √(3))R30° structures of alkanethiol self-assembled monolayers on Au(111)
(Wiley-VCH Verlag, 2011)The translational and orientational potential energy surfaces (PESs) of n-alkanethiols with up to four carbon atoms are studied for (√(3) × √(3))R30° self-assembled monolayers (SAMs). The PESs indicate that methanethiol ... -
Monopole and dipole layers in curved spacetimes: Formalism and examples
(2011)The discontinuities of electromagnetic test fields generated by general layers of electric and magnetic monopoles and dipoles are investigated in general curved spacetimes. The equivalence of electric currents and magnetic ... -
Wireless passive sensing application using a cavity loaded evanescent mode half mode substrate integrated waveguide resonator
(2011)In this work, an evanescent mode half mode substrate integrated waveguide (HMSIW) resonator is designed for a wireless passive sensing application at 5 GHz. The wireless pressure sensor has been implemented by placing a ... -
Research on energy indexes of cogenerated plants with gas turbines and heat recuperator steam generators
(2012)The main objective of this paper is the experimental investigation of the energy indexes of a cogeneration plant with Gas Turbines (GT) and Heat Recuperator Steam Generators (HRSGs) while changing its operational load. The ...
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.
