Ingenieria y Ciencia最新文献

{"title":"Regiones de Eficiencia Espectral Asociadas a Satisfacción de QoS Basadas en Estrategias de Ancho de Banda","authors":"Evelio Astaiza, O. HéctorFabioBermudez, Luis Muñoz","doi":"10.17230/INGCIENCIA.12.24.7","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.24.7","url":null,"abstract":"This paper presents the study results of the identification of the regions of spectral efficiency that satisfy the requirements of quality of service (QoS) based on restrictions of bandwidth based on IEEE 802.11 multicell. This problem is addressed from the perspective of game theory for the channeling defined in 802.11g, and considering only the nonoverlapping channels. To solve the game, the concepts of Nash Equilibrium (NE), Satisfaction Equilibrium (ES) and Efficient Satisfaction Equilibrium (ESE) are introduced, proposing an algorithm to identify regions of capacity that satisfy the QoS required by a user. Particularly, in this game, the solution that allows to guarantee the transfer information rate required by a network user while minimizing the required resources (bandwidth) is sought, allowing users to maximize the amount that can be associated to an AP on the network. In the present scenario, it is verified that the different Equilibrium NE, SE and ESE depend directly on the conditions of channel gain.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"149-168"},"PeriodicalIF":0.0,"publicationDate":"2016-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Generalized Extended Matrix Variate Beta and Gamma Functions and Their Applications","authors":"D. K. Nagar, Sergio Alexander Gómez-Noguera, Arjun K. Gupta","doi":"10.17230/INGCIENCIA.12.24.3","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.24.3","url":null,"abstract":"espanolEn este articulo definimos y estudiamos formas generalizadas de las funciones gama y beta matriz variadas extendidas. Utilizando varios resultados del algebra matricial, funciones especiales de argumento matricial y polinomios zonales, derivamos algunas de las propiedades de estas funciones. Tambien mostramos algunas aplicaciones de estas funciones a la teoria de distribuciones. EnglishIn this article, we define and study generalized forms of extended matrix variate gamma and beta functions. By using a number of results from matrix algebra, special functions of matrix arguments and zonal polynomials we derive a number of properties of these newly defined functions. We also give some applications of these functions to statistical distribution theory.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"51-82"},"PeriodicalIF":0.0,"publicationDate":"2016-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Desmantelamiento óptimo de redes delincuenciales. Una perspectiva desde el modelado matemático y computacional","authors":"Tomas Angel Sarmiento Bahoque, John Fredys Cantillo Palacio, J. Gómez, Javier Antonio Montoya Martínez","doi":"10.17230/INGCIENCIA.12.24.4","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.24.4","url":null,"abstract":"espanolEl objetivo de este trabajo es estudiar y comparar diferentes estrategias para el desmantelamiento optimo de redes delincuenciales, las cuales estan representadas en algoritmos que permiten la identificacion optima de los individuos claves en la red. La estrategia de mayor complejidad se basa en la metrica de centralidad de Katz-Bonacich como medida de influencia en la red, y da lugar a un problema NP-dificil por lo que se debe recurrir a metodos heuristicos para encontrar soluciones aproximadas. Aqui se desarrolla un algoritmo basado en el metodo Monte Carlo y se compara con un metodo basado en algoritmos voraces introducido recientemente en la literatura. En este trabajo se compara ademas el desempeno de estos con estrategias menos sofisticadas y se proporciona evidencia que dichos algoritmos se desempenan relativamente bien, contribuyendo asi a proporcionar un mejor entendimiento de estos. Se discute ademas un modelo introducido recientemente que justifica el uso de la centralidad de Katz-Bonacich desde el punto de vista de la teoria de juegos sobre redes. EnglishThis work deals with the study and comparison of different strategies for the optimal dismantling of delinquent networks, which aim to optimally identify the most relevant individuals in the network. The strategy of greater complexity that we have studied here, is based on the Katz-Bonacich centrality criteria as a measure of influence of the individuals in the network. This results in an NP-hard type of problem, therefore, in order to apply that criteria, we must use heuristic methods which allow us to find approximate solutions. In particular, the methods used in this work are the Monte Carlo and greedy algorithms. We compared their performance against less sophisticated strategies and we were able to find that these algorithms perform relatively better, which contributes to improve our understanding of these approaches. In addition, we discuss a model that was recently introduced, which justifies the use of Katz-Bonacich centrality from the point of view of game theory on networks.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"9 1","pages":"83-103"},"PeriodicalIF":0.0,"publicationDate":"2016-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"K-álgebras finitas conmutativas con unidad","authors":"C. G. Pinzón, W. O. León","doi":"10.17230/INGCIENCIA.12.24.2","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.24.2","url":null,"abstract":"espanolEn este articulo presentamos un estudio sobre las K-algebras finitas, es decir las K-algebras conmutativas con unidad que son espacios vectoriales de dimension finita sobre un cuerpo K. Estas son suma directa de K-algebras finitas locales. Caracterizamos la K-algebra finita local K[x]/(f(x)), mostramos que ciertas K-algebras finitas son isomorfas y descomponemos la K-algebra finita K[x]/(f(x)) en K-algebras finitas locales. EnglishThis paper is devoted to the study of finite K-algebras i.e. the commutative K-algebras with unity that are finite dimensional vector space over a field K. A finite K-algebra is direct sum of local finite K-algebras. We obtain a characterization of the local finite K-algebra K[x]/(f(x)) , show that certain finite K-algebras are isomorphic and discompose the finite K-algebra K[x]/(f(x)) in local finite K-algebras.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"31-49"},"PeriodicalIF":0.0,"publicationDate":"2016-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diseño de un modelo basado en agentes para estudiar el impacto de la cohesión social y la victimización el comportamiento de un criminal","authors":"Rafael Ricardo Rentería, J. S. Mejía","doi":"10.17230/ingciencia.12.24.5","DOIUrl":"https://doi.org/10.17230/ingciencia.12.24.5","url":null,"abstract":"espanolEn esta investigacion se propone la construccion de un modelo basado en agentes, para estudiar el impacto que tiene la cohesion social y la victimizacion en el proceso de la toma de decision de un criminal. En el modelado se consideraron los aspectos criminologicos establecidos desde las teorias del desorden social y de las actividades rutinarias en una arquitectura de inteligencia artificial PECS (Physis, Emotion, Cognitive, Social), con el objeto de articular todas las dimensiones que intervienen en la construccion de la decision. La cohesion social sera representada por redes sociales siguiendo el experimento de Watts - Strogatz, y la victimizacion como resultado acumulado de victimizaciones previas. Los resultados obtenidos de la simulacion permitieron replicar las conductas sociales caracteristicas del actor criminal, ya que en ellos se resaltan la importancia que tiene la percepcion de la cohesion social sobre la memoria de victimizacion generada por eventos criminales pasados, elementos que presentan consistencia con la evidencia empirica de los principios teoricos establecidos en el desordensocial y las acciones rutinarias. EnglishIn this research the construction of an agent-based model is proposed to study the impact of social cohesion and victimization in the process of decision making of a criminal. Modeling criminological aspects-established from theories of social disorder and routine activities in an architecture of artificial intelligence PECS (Physic, Emotion, Cognitive, Social), in order to articulate all dimensions involved in the construction of the decision. Social cohesion will be represented by social networks following the experiment done by Watts - Strogatz, and victimization as a cumulative result of previous victimizations. The results obtained in the simulation allowed to replicate social behavior main characteristics of a criminal Actor, because in them, the importance of the perception of social cohesion on the memory of victimization generated by past criminal events are highlighted. Elements that are consistent with the empirical evidence of the theoretical principles established in social disorder and routine actions.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"105-127"},"PeriodicalIF":0.0,"publicationDate":"2016-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Secciones cónicas k-deformadas","authors":"J. C. Parra, Héctor Román Quiceno Echavarría, O. Lobo","doi":"10.17230/INGCIENCIA.12.24.1","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.24.1","url":null,"abstract":"espanolEn el presente articulo se analiza el efecto que tiene sobre la igualdad d(P, F1) + d(P, F2)=2a siendo P un punto del plano, F1 y F2 los focos de esta figura plana llamada elipse y a una constante positiva, el uso de la suma k-deformada en el sentido de Kaniadakis, la cual se define como para 0 EnglishIn this paper we study the effects of the K-deformed sum, defined as on the Euclidean distance function d(P, F1) + d(P, F2) = 2a, where P is an arbitrary point in R2 ; F1 and F2 are the focus of the curve named Ellipse. The points satisfying the resulting equality d(P, F1) d(P, F2) = 2a, describe a curve named K-deformed ellipse for which the resulting analityc expression is analogue to the standard one. We make a deep study of the vertex, local extrema, asymptotes, the latus rectum and the graph of the resulting K-deformed conic ections: Ellipse, hyperbola, circumference and parabola in the K-deformed setting. We also make a study of the area of the regions limited by the -deformed ellipse and hyperbola for an arbitrary value of K.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"9-29"},"PeriodicalIF":0.0,"publicationDate":"2016-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neuronal Synchronization of Electrical Activity, using the Hodgkin-Huxley Model and RCLSJ Circuit","authors":"M. JoseA.Díaz, O. Téquita, F. Naranjo","doi":"10.17230/INGCIENCIA.12.23.5","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.23.5","url":null,"abstract":"We simulated the neuronal electrical activity using the Hodgkin-Huxley model (HH) and a superconductor circuit, containing Josephson junctions. These HH model make possible simulate the main neuronal dynamics characteristics such as action potentials, firing threshold and refractory period. The purpose of the manuscript is show a method to syncronize a RCLshunted Josephson junction to a neuronal dynamics represented by the HH model. Thus the RCLSJ circuit is able to mimics the behavior of the HH neuron. We controlated the RCLSJ circuit, using and improved adaptative track scheme, that with the improved Lyapunov functions and the two controllable gain coecients allowing synchronization of two neuronal models. Results will provide the path to follow forward the understanding neuronal networks synchronization about, generating the intrinsic brain behavior.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"93-106"},"PeriodicalIF":0.0,"publicationDate":"2016-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Método de ocultamiento de píxeles para esteganografía de imágenes en escala de gris sobre imágenes a color","authors":"Diego Renza, L. DoraM.Ballesteros, R. Rincón","doi":"10.17230/INGCIENCIA.12.23.8","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.23.8","url":null,"abstract":"Abstract Steganography is the process of data hiding into a host signal with three main characteristics: imperceptibility, payload and quality of the recovered data. For images, one of the pixel modification methods is the BPHM (Block Pixel Hiding Method) which has good imperceptibility and payload, but it does not ensure the good quality of the recovered secret image. In this paper, we propose an improvement of the BPHM with the purpose to obtain similar results to the well-known QIM (Quantization Index Modulation) method. According to the results, the imperceptibility of the stego image and the quality of the recovered secret image were improved, and then, our results are closer to QIM results.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"145-162"},"PeriodicalIF":0.0,"publicationDate":"2016-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relocalización de vehículos en servicios de emergencias médicas: una revisión","authors":"Q. Rodríguez, O. Osorno, D. A. Maya","doi":"10.17230/INGCIENCIA.12.23.9","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.23.9","url":null,"abstract":"Este articulo presenta una revision de la literatura de los estudios realizados sobre problemas de relocalizacion de vehiculos de Servicios de Emergencia Medica, (SEM). En particular se presenta una descripcion basica de las actividades que se realizan en un SEM, la forma como son clasificados este tipo de problemas, los principales componentes que se tienen en cuenta en el diseno de los modelos, los metodos de solucion que se han implementado a la fecha y las medidas de desempeno para evaluar las soluciones. Ademas se discuten los softwares utilizados para su desarrollo, las estrategias para la recoleccion de los datos que se tienen en cuenta y las tecnicas de verificacion y validacion. Finalmente, se presentan las politicas de relocalizacion mas evaluadas e implementadas.","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"163-202"},"PeriodicalIF":0.0,"publicationDate":"2016-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67421988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Análisis hidrodinámico de rejas de canales mediante simulaciones numéricas bidimensionales","authors":"E. Munguía-Balvanera, A. Blanco-Piñón, Justino Alavez-Ramírez","doi":"10.17230/INGCIENCIA.12.23.4","DOIUrl":"https://doi.org/10.17230/INGCIENCIA.12.23.4","url":null,"abstract":"Abstract In the biological context water is known to be favorable in wetlands, whether these are natural or artificial. The problem being addressed is the lack of hydrodynamic studies on the know-how of water behavior in artificial wetlands. This work was analyzed in three localities, and was complemented with a comparison of the shape of artificial wetlands at different ages and parts of the world; and it was concluded that its geometry is in a grid-shaped canals. For the artificial wetland grid a free two-dimensional software was used to make numerical simulations and deduce the hydrodynamic behavior. It was shown that the grid accomplishes the behavior of the natural wetlands; dissipating the energy of the water flow by draining and holding it down. The grid canal does it better than an equivalent meandering canal; the results were not found in other sources. The advantage of using a free 2D software to make artificial wetland simulations is its convenient representation of water flows and low cost. More research remains to be done on the field of wetland hydrodynamics, such as: different geometric shapes, the inclusion of sediment drag, rain simulation, among other aspects","PeriodicalId":30405,"journal":{"name":"Ingenieria y Ciencia","volume":"12 1","pages":"73-92"},"PeriodicalIF":0.0,"publicationDate":"2016-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67422132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}