Addressing the 5G cell switch-off problem with a multi-objective cellular genetic algorithm

© 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.The power consumption foreseen for 5G networks is expected to be substantially greater than that of 4G systems, mainly because of the ultra-dense deployments required to meet the upcoming traffic demands. This paper deals with a multi- objective formulation of the Cell Switch-Off (CSO) problem, a well-known and effective approach to save energy in such dense scenarios, which is addressed with an accurate, yet rather unknown multi-objective metaheuristic called MOCell (multi- objective cellular genetic algorithm). It has been evaluated over a different set of networks of increasing densification levels. The results have shown that MOCell is able to reach major energy savings when compared to a widely used multi-objective algorithm.TIN2016-75097-P Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Model-based run-to-run optimization for process development

Research and development of new processes is a fundamental part of any innovative industry. For process engineers, finding optimal operating conditions for new processes from the early stages is a main issue, since it improves economic viability, helps others areas of R&D by avoiding product bottlenecks and shortens the time-to-market period. Model-based optimization strategies are helpful in doing so, but imperfect models with parametric or structural errors can lead to suboptimal operating conditions. In this work, a methodology that uses probabilistic tendency models that are constantly updated through experimental feedback is proposed in order to rapidly and efficiently find improved operating conditions. Characterization of the uncertainty is used to make safe predictions even with scarce data, which is typical in this early stage of process development. The methodology is tested with an example from the traditional innovative pharmaceutical industry.Fil: Luna, Martín Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo y Diseño. Universidad Tecnológica Nacional. Facultad Regional Santa Fe. Instituto de Desarrollo y Diseño; ArgentinaFil: Martínez, Ernesto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo y Diseño. Universidad Tecnológica Nacional. Facultad Regional Santa Fe. Instituto de Desarrollo y Diseño; Argentin

Bayesian optimization of crystallization processes to guarantee end-use product properties

For pharmaceutical solid products, the issue of reproducibly obtaining their desired end-use properties depending on crystal size and form is the main problem to be addressed and solved in process development. Lacking a reliable first-principles model of a crystallization process, a Bayesian optimization algorithm is proposed. On this basis, a short sequence of experimental runs for pinpointing operating conditions that maximize the probability of successfully complying with end-use product properties is defined. Bayesian optimization can take advantage of the full information provided by the sequence of experiments made using a probabilistic model of the probability of success based on a one-class classification method. The proposed algorithm's performance is tested in silico using the crystallization and formulation of an API product where success is about fulfilling a dissolution profile as required by the FDA. Results obtained demonstrate that the sequence of generated experiments allows pinpointing operating conditions for reproducible quality.Fil: Luna, Martín Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo y Diseño. Universidad Tecnológica Nacional. Facultad Regional Santa Fe. Instituto de Desarrollo y Diseño; ArgentinaFil: Martínez, Ernesto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo y Diseño. Universidad Tecnológica Nacional. Facultad Regional Santa Fe. Instituto de Desarrollo y Diseño; Argentin

Sociedad de la información y el conocimiento y nuevos paradigmas del Derecho: el caso de los códigos de conducta en el comercio electrónico

Este trabajo se centra en determinar el nuevo contexto jurídico que nace de la sociedad de la información, con nuevas fuentes del derecho, y mostrar las posibles disfuncionalidades del sistema jurídico vigente. Como caso concreto de la falta de adaptación del sistema jurídico presentamos la autorregulación que se ha llevado a cabo en el comercio electrónico para dar garantía jurídica a operaciones no contempladas en el ordenamiento vigente, mostrando algunas de las experiencias más relevantes, tanto a nivel nacional como internacional.This paper wants to determine the new juridical context that arises from the information society, with new sources of rights, and show the possible dysfunctionalities of the current juridical system. As specific case of the lack of adaptation of the juridical system, we introduce the self-regulation that has been carried out in the electronic commerce to give juridical guarantee to transactions not contemplated on the current juridical system, showing some of the most relevant experiences, both nationally and internationally

Compositos moleculares de soluciones sólidas poliméricas

Fundamentado en los antecedentes de formación de soluciones sólidas de sales inorgánicas en polímeros, se planteó la posibilidad de que el 2,2- dimetoxipropano actuara como agente de secado cuando las soluciones se preparan ya sea en medios húmedos o a partir de sales hidratadas, así se estableció un diseño de experimentos para determinar si era posible tener tiempos cortos de preparación de las muestras, para tal efecto se seleccionaron cinco sales hexahidratadas (FeCl3, CoCl2, Co(NO3)2, Zn(NO3)2, Sm(NO3)3) para ser formuladas en composiciones cercanas al 50% en poli (propilenglicol). Los materiales compuestos fueron preparados con tiempos de secado de 48 Hrs. y su composición fue caracterizada mediante termogravimetría y espectroscopia de infrarrojo. Además utilizando calorimetría diferencial de barrido, difracción de rayos–X y espectroscopia de ultravioleta – visible, se estableció la característica de soluciones sólidas, que incluyó un posible orden de intensidad de las interacciones entre las sales y el polímero. Por último la espectroscopia dieléctrica preliminar de disoluciones de los materiales en etanol, mostró diferencias en el comportamiento entre las diversas soluciones sólidas cuya correcta interpretación requiere de un trabajo experimental caracterizando los materiales en estado sólido. De esta manera se estableció que el 2,2- dimetoxipropano actúa como agente de secado en la preparación de disoluciones sólidas de las sales estudiadas en poli (propilenglicol), reduciendo los tiempos de preparación de los materiales, de alrededor de tres semanas, que es lo reportado, a 48 Hrs. que es lo reportado en este trabajo

Delphi Like as a Predictive Methodological Base Research of Information Systems and Information Technology (IS/IT)

La afirmación de los Sistemas de Información como campo científico independiente de otras áreas se viene sustentando en la gran cantidad de trabajos académicos y de investigación que sobre este tema se vienen realizando. Este corpus doctrinal adolece no obstante de un mayor bagaje metodológico y de estudios sobre la aplicación de determinadas metodologías a la investigación en Sistemas de Información. Bajo estas premisas hemos realizado un análisis de la doctrina existente sobre la investigación metodológica en sistemas de Información, centrándonos en una de las metodologías que venimos utilizando de forma más habitual en nuestros trabajos de investigación, el método delphi, al que consideramos como una de las técnicas de obtención de información más útiles y eficaces en nuestro campo científico. A pesar de su importancia, el método delfhi aún ha sido poco estudiado en nuestro país desde la perspectiva epistemológica en el ámbito de los Sistemas de Información, por lo que consideramos necesario la realización de un análisis de esta metodología y de las investigaciones que se han realizado sobre su aplicación para poder comprender mejor los aspectos que debemos potenciar de la misma y conocer cuando es adecuada su utilización.The statement of the Information Systems as a independent scientific field of other areas one comes sustaining in the great quantity of academic works and of investigation that it has more than enough this topic one comes carrying out. This doctrinal corpus suffers nevertheless of a bigger methodological baggage and of studies on the application of certain methodologies to the investigation in Information Systems. Under these premises we have carried out an analysis of the existent doctrine on the methodological investigation in Information Systems, centering us in one of the methodologies that come using in a more habitual way in our investigation works, the method delphi, to which we consider like one of the most useful and ef ective techniques of obtaining of information in our scientific field. In spite of their importance, the method delfhi has still been little studied in our country from the perspective epistemológica in the environment of the Information Systems, for what we consider necessary the realization of an analysis of this methodology and of the investigations that have been carried out on its application to be able to understand the aspects that we should develop of the same one better and to know when its use is adapted

A learning experience in the fields of economics and business: creation of student-managed inter-university virtual networks

With this article we shall describe the learning experience carried out by our students in the fields of Economics and Business at the Universities of Huelva and University of Seville within an active- and cooperative-learning framework involving creation of virtual networks between our students and others who were attending diverse universities in Spain and abroad, thus allowing us to strengthen interactions and information exchanges among students, also allowing them to apprehend on their own the characteristics of economic and business and entrepreneuring realities in which they are immersed and, very specially, the use of virtual communities in the Internet

The Catalonian Conflict : an Interpretive Structural Model

The methodology ISM (Interpretive Structural Modeling) is used to study the conflict in Catalonia, listing a listof factors and the influences between them, building from them the Matrix of Influences and the Matrix of Scope, fromwhich they classify the factors into levels and a flow diagram is drawn up, concluding what the possible paths of evolutionof said conflict would b