Correo Electrónico
DNINFOA - SIA
Bibliotecas
Convocatorias
Identidad U.N.
Browsing Dyna by Title
Now showing items 974-993 of 1620
-
M2M system for efficient water consumption in sanitary services, based on intelligent environment
This paper describes the fulfilled research process for the development of an intelligent system for the efficient use of water in sanitary units in the domestic environment. Fundamentally, the research focused on two ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Machine vision algorithms applied to dynamic traffic light control
This paper presents a fuzzy traffic controller that in an autonomous, centralized and efficient way, manages vehicular traffic flow in a group of intersections. The system uses a computer vision algorithm to detect the ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Magnetic and structural studies of (sn, ni –sn) substituted barium hexaferrites synthesized by ball milling
Samples of BaFe12-2x(SnSn)xO19 and BaFe12-2x(NiSn)xO19 were processed by high energy milling with 0 ≤ x ≤ 0.4 and 0 ≤ x ≤ 0.3 respectively. Sn2+-Sn4+ mixture considerably improved the saturation magnetization, Ms, (from ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Maintenance management program through the implementation of predictive tools and TPM as a contribution to improving energy efficiency in power plants
This paper presents an application method of a Maintenance Management Program through the implementation of predictive tools and the Total Productivity Maintenance (TPM) methodology as a contribution for the energy efficiency ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Major trends in the development of ankle rehabilitation devices
In this paper we review the ankle rehabilitation devices, both those that are already commercially available and those which are in the stage of development in laboratories and research centers. Also, a rehabilitation ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Making use of coastal wave energy: a proposal to improve oscillating water column converters
This paper aims to describe an alternative design (protected by patent), for an onshore wave based energy converter, specifically an oscillating water column, capable of providing increased efficiency. In order to compare ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Managing relationships and communications in higher education efficiently through digital social networks: The importance of the relational coordination model
Digital social networks have proven to be of great support for organizations that are increasingly using new forms of social communication every day, seeking to improve their productivity and competitiveness. The main ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Manipulación de robots con base en posturas labiales
En este artículo se propone un nuevo método para el comando de tres grados de libertad de un robot manipulador, por medio de gestos de la boca. Las diferentes posiciones son registradas en secuencias de video, las cuales ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Manufacturing and evaluation of Chitosan, PVA and Aloe Vera hydrogels for skin applications
The aim of this research was to develop membranes of polyvinyl alcohol (PVA) and chitosan (CH), capable of absorbing an Aloe Vera solution and gradually releasing to accelerate wound healing. The methodology involved varying ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Manufacturing of a maxillofacial prosthesis from an axial tomography using simulation technologies with a virtual machine tool and four-axis machining
The surfaces of a personalized maxillofacial prosthesis were manufactured in a relatively short time with moderate cost. The topography of the surface was generated with a Computer-Aided Design system from a Computerized ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Mapping the region of instability for adiabatic continuation method
The pioneer schematic ideas of Kimura and Levenspiel (Ind. Eng. Chem. Proc. Des. Dev., 16 (1977) 145 – 148) have been developed to find numerically the region of instability for adiabatic packed bed reactors. Three different ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Maps of Intrinsic Cost (IC) in reliability problems of medium voltage power distribution systems through a Fuzzy multi-objective model
In this work the reliability of a real Medium Voltage Power Distribution Systems (MVPDS) with the application of Sectionalizing/Protection (SP) Devices is analyzed. The most satisfactory solution is obtained through a ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Mapwindow vs. arcgis: towards featuring the interoperability between geographic information systems
Heterogeneous information systems can make data and process operations by means of a functionality called interoperability. Geographic information system (GIS) interoperability is based on two factors: the increasing use ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Markov processes in modeling land use and land cover changes in sintra-cascais, portugal
In this article the process of land use and land cover change (LUCC) is investigated using remote sensing and Markov chains for the municipalities of Sintra and Cascais (Portugal) between years 1989 and 2000. The role of ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Matrices de rigidez y de carga de primer y segundo orden de una vigacolumna ortotrópica con conexiones semirrígidas: i) teoria
Las matrices de rigidez y de carga de primer y segundo orden de una viga-columna de Timoshenko ortotrópica de sección transversal simétrica con conexiones semirrígidas incluyendo los efectos de la carga axial en los extremos ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Matrices de rigidez y de carga de primer y segundo orden de una vigacolumna ortotrópica con conexiones semirrígidas: ii) ejemplos
Las matrices de rigidez y de carga de primer y segundo orden de una viga-columna de Timoshenko ortotrópica de sección transversal simétrica con conexiones semirrígidas incluyendo los efectos de la carga axial en los extremos ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Matrix multiplication with a hypercube algorithm on multi-core processor cluster
The algorithm of multiplication of matrices of Dekel, Nassimi and Sahani or Hypercube is analysed, modified and implemented on multicore processor cluster, where the number of processors used is less than that required by ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Las máquinas de vapor en la obtención del azúcar de caña en españa: análisis comparativo
El presente artículo muestra una investigación de historia de la tecnología aplicada para la obtención del azúcar de caña, realizando un estudio comparativo de las principales máquinas de vapor extendidas en España, como ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Measurement of elastic properties of materials by the ultrasonic through-transmission technique
Universidad Nacional de Colombia Revistas electrónicas UN Dyna. -
Measurement-based exponential recovery load model: development and validation
Load modeling is an important task in power system stability analysis and control. Taking this into account, the development of dynamic load models using a measurement-based load modeling strategy and an improved particle ...Universidad Nacional de Colombia Revistas electrónicas UN Dyna.
