Editorial

This volume of the Bulletin LIBRARIES and the next intended as a means of inspiration. Inspiration to propose ideas to offer to the community library paths to adapt to global culture and technology which revolves around the progress of information and communication systems. Ideas that move us to innovate, to make mistakes and correct them.Because the information age it is also of creativity. Creativity is the competitive advantage of professional and modern organizations. Ideas to change attitudes toward open to new projects that facilitate the transformation and to the challenge of "going global". Inspiration to measure and produce constructive thinking to help us define new goals by the desire to create and share knowledge.

Uma arquitetura de referência para o processamento distribuído de stream de dados em soluções analíticas de near real-time

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Elétrica, 2015.

Modelling of an efficient dynamic smart solar photovoltaic power grid system

A smart solar photovoltaic grid system is an advent of innovation coherence of information and communications technology (ICT) with power systems control engineering via the internet [1]. This thesis designs and demonstrates a smart solar photovoltaic grid system that is selfhealing, environmental and consumer friendly, but also with the ability to accommodate other renewable sources of energy generation seamlessly, creating a healthy competitive energy industry and optimising energy assets efficiency. This thesis also presents the modelling of an efficient dynamic smart solar photovoltaic power grid system by exploring the maximum power point tracking efficiency, optimisation of the smart solar photovoltaic array through modelling and simulation to improve the quality of design for the solar photovoltaic module. In contrast, over the past decade quite promising results have been published in literature, most of which have not addressed the basis of the research questions in this thesis. The Levenberg-Marquardt and sparse based algorithms have proven to be very effective tools in helping to improve the quality of design for solar photovoltaic modules, minimising the possible relative errors in this thesis. Guided by theoretical and analytical reviews in literature, this research has carefully chosen the MatLab/Simulink software toolbox for modelling and simulation experiments performed on the static smart solar grid system. The auto-correlation coefficient results obtained from the modelling experiments give an accuracy of 99% with negligible mean square error (MSE), root mean square error (RMSE) and standard deviation. This thesis further explores the design and implementation of a robust real-time online solar photovoltaic monitoring system, establishing a comparative study of two solar photovoltaic tracking systems which provide remote access to the harvested energy data. This research made a landmark innovation in designing and implementing a unique approach for online remote access solar photovoltaic monitoring systems providing updated information of the energy produced by the solar photovoltaic module at the site location. In addressing the challenge of online solar photovoltaic monitoring systems, Darfon online data logger device has been systematically integrated into the design for a comparative study of the two solar photovoltaic tracking systems examined in this thesis. The site location for the comparative study of the solar photovoltaic tracking systems is at the National Kaohsiung University of Applied Sciences, Taiwan, R.O.C. The overall comparative energy output efficiency of the azimuthal-altitude dual-axis over the 450 stationary solar photovoltaic monitoring system as observed at the research location site is about 72% based on the total energy produced, estimated money saved and the amount of CO2 reduction achieved. Similarly, in comparing the total amount of energy produced by the two solar photovoltaic tracking systems, the overall daily generated energy for the month of July shows the effectiveness of the azimuthal-altitude tracking systems over the 450 stationary solar photovoltaic system. It was found that the azimuthal-altitude dual-axis tracking systems were about 68.43% efficient compared to the 450 stationary solar photovoltaic systems. Lastly, the overall comparative hourly energy efficiency of the azimuthal-altitude dual-axis over the 450 stationary solar photovoltaic energy system was found to be 74.2% efficient. Results from this research are quite promising and significant in satisfying the purpose of the research objectives and questions posed in the thesis. The new algorithms introduced in this research and the statistical measures applied to the modelling and simulation of a smart static solar photovoltaic grid system performance outperformed other previous works in reviewed literature. Based on this new implementation design of the online data logging systems for solar photovoltaic monitoring, it is possible for the first time to have online on-site information of the energy produced remotely, fault identification and rectification, maintenance and recovery time deployed as fast as possible. The results presented in this research as Internet of things (IoT) on smart solar grid systems are likely to offer real-life experiences especially both to the existing body of knowledge and the future solar photovoltaic energy industry irrespective of the study site location for the comparative solar photovoltaic tracking systems. While the thesis has contributed to the smart solar photovoltaic grid system, it has also highlighted areas of further research and the need to investigate more on improving the choice and quality design for solar photovoltaic modules. Finally, it has also made recommendations for further research in the minimization of the absolute or relative errors in the quality and design of the smart static solar photovoltaic module.

Propuesta de un marco de referencia simplificado para la implementación de un Gobierno de TI en Pymes de Servicios en Colombia

El siguiente trabajo de grado propone un modelo simplificado de gobierno y gestión de las tecnologías de información en las pequeñas y medianas empresas de servicios en Colombia, a partir de la selección e integración de procesos enunciados por algunos de los marcos de trabajo y buenas prácticas de TI que gozan de un reconocimiento generalizado -- En concreto, se han tomado elementos de COBIT 5, ISO/IEC 20000, ITIL V3, CMMI 1.3, PMBOK 5 e ISO/IEC 27000 -- Para el diseño del modelo propuesto se han identificado cada uno de los procesos dispuestos por los diferentes marcos de referencia -- Acto seguido se ha procedido a identificar todos los procesos comunes entre los diferentes modelos de gestión, seleccionando aquellos que se consideran imprescindibles en la generación de valor y evitando aquellos que complejizaran la gestión para el foco de nuestro alcance -- Los procesos identificados y seleccionados fueron agrupados bajo áreas de proceso, las cuales, a su vez, describen subprocesos que tienen un propósito declarado y unas estrategias de gestión y actividades propuestas, que seguidas, satisfacen el objetivo establecido para cada uno de los subprocesos, y en conjunto, suponen un modelo de gobierno de TI adecuado para las pequeñas y medianas empresas prestadoras de servicios en Colombia

Testing the level of interactivity of institutional websites: From museums 1.0 to museums 2.0

The Internet has changed the way in which organizations communicate with their publics, and museums are not an exception. The consolidation of Web 2.0 has not only given museums access to a powerful new tool for disseminating information, but has involved significant changes in the relationship between institutions and their publics, facilitating and enhancing the interaction between them. The overall objective of this paper is to analyze the degree of interactivity implemented in the websites of major international art museums, in order to assess if museums are evolving towards more dialogic systems with relation to their publics. The results indicate that museums still have a low level of interactivity on their websites, both in the tools used to present information and the resources available for interaction with virtual visitors. But it has also observed that museums are progressively implementing interactive and dialogic sources, suggesting a clear trend towards new ways of managing these platforms in order to establish more participatory and collaborative communication systems with virtual users.

Un modelo de indicadores de gestión de comunicación organizacional para la Universidad de Antioquia: un aporte a la gestión estratégica de la comunicación en instituciones universitarias

El presente trabajo tiene como propósito formular un sistema de indicadores de comunicación que se constituya en un instrumento valioso para el ejercicio de planeación, seguimiento y evaluación de la gestión comunicativa al interior de la Universidad de Antioquia -- Además de la mejora continua del proceso de comunicación institucional y una toma de decisiones más efectiva, se espera que la implementación del sistema de indicadores permita un posicionamiento estratégico del área de comunicaciones en articulación con sus diferentes dependencias, al valorar con mayor claridad su contribución al logro de los objetivos estratégicos planteados por la Alma Máter -- Para el logro de dicho objetivo trazaron tres etapas -- La primera comprende un estado del arte en el que se incluyen los aportes teóricos sobre la medición y la evaluación de la comunicación en las organizaciones, la información de contexto requerida sobre la institución objeto de estudio y un diagnóstico sobre el estado de la comunicación en la misma, basado en estudios elaborados previamente por la institución -- La segunda etapa corresponde al trabajo de campo, que parte de una combinación de técnicas investigativas cuantitativas (encuesta) y cualitativas (grupo focal) -- Con el análisis de la información obtenida en tales fases, al final se formula una propuesta de indicadores de cumplimiento, satisfacción e impacto para cada uno de los asuntos de trabajo del proceso de comunicación institucional proyectado en la actualidad por la Universidad de Antioquia

Solution to reduce nonlinearity in LTE RoF system for an efficient das topology:a brief review

In this paper, a review on radio-over-fiber (RoF) technology is conducted to support the exploding growth of mobile broadband. An RoF system will provide a platform for distributed antenna system (DAS) as a fronthaul of long term evolution (LTE) technology. A higher splitting ratio from a macrocell is required to support large DAS topology, hence higher optical launch power (OLP) is the right approach. However, high OLP generates undesired nonlinearities, namely the stimulated Brillouin scattering (SBS). Three different aspects of solving the SBS process are covered in this paper, where the solutions ultimately provided an additional 4 dB link budget.