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A comparative study between two student groups of Physics in the Pre-college Educational System

Jonas TORRES-MONTEALBAN

ABSTRACT

As an interesting experience on the teaching-learning process, Moodle e-learning platform will be implemented in one of the two  pre-college level physics groups in the Chapingo Autonomous University,  that is, those students completing the requirement course in order to be admitted at the college level. This study will show how the use of new technologies improves the learning progress linked  to physics concepts and through these worksheets. The first group will be working with class activities in the  classroom  of  physics. The second group will be  monitored  with the platform Moodle as external e-media. This latter group will be selected from pre-college students in Regional Centers outside the Chapingo Campus. The application of Moodle has not been implemented in the  study of Basic Experimental Physics. This proposal has been designed in four stages. The first one defines the  theoretical framework  and describes the didactic  model, which consist of three kinds of worksheets. The second stage  displays the results between similarities and differences in both groups, as  resulting  from the worksheets conceptual, phenomenological and experimental-formal).  The third stage includes the discussion on the information collected and how this new technology could improve the physics learning process in pre-college students. Finally, the last stage gives information on how elearning might be an alternative implement in other campuses.

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MEASURING SYSTEM FOR PELTON TURBINE

Enrique Yamid Garzón Gonzalez, Sergio Huertas Martínez, Alejandra Moscoso Gamez

ABSTRACT

This article presents the methodology of  implementation of the system of measurement and communication of the angular velocity and pressure in a Pelton turbine of type training; using LabVIEW ® and a Microchip ® microcontroller and its display in a graphical user interface. A device that receives a signal or stimulus and responds with an electrical signal was used for the acquisition of the variables. The tools presented in this implementation, you can acquire and submit accurate data at a speed of 12 Mb/s. The communication is done using the Call Function Library for LabVIEW ® tool, which makes use of mpusbapi provided by Microchip ®. The bridge that establishes the communication  via USB libraries of the CCS C Compiler ® and the driver mchpusb for Microsoft ® software.

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JOINT REPRESENTATION OF HUMAN WALKING THROUGH THE DIRECT KINEMATICS

Esperanza Camargo, Lely Luengas, Yamid Garzón

ABSTRACT

This paper shows the representation of human walking from the angles formed in each of the lower extremity joints and the length of each segment during each of the subphases of gait, for hip (flexion, extension , abduction and adduction, medial rotation and lateral rotation), knee (flexion and extension) and ankle (dorsiflexion, plantar flexion, pronation and supination) [1]. To determine the spatial location of each joint is modeled from the Denavit-Hartenberg parameters with the help of MATLAB.

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Delay efficient Layer by Layer Angle Based Flooding Protocol (L2-ABF) for Underwater Wireless Sensor Networks

Tariq Ali, Low Tang Jung  and Ibrahima Faye.

ABSTRACT

The advancement of acoustic modem technology in providing better data rates and more reliable underwater wireless communications has motivated many researchers to create various algorithms to support such technology in a better way. These continuing researches have greatly improved the underwater communication performance in the last two decades. However issues such as inefficient horizontal communication between the sensors nodes on same depth level, high end to end delays between source and sink nodes, propagation delay, as well as poor data delivery ratios are still posing challenges for effective and efficient data packets routing. In this paper, we present a novel Layer by Layer Angle Based Flooding (L2-ABF) routing protocol to address some of these challenges for the partially connected underwater communication environments.

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The democratic potentiality of technologies

Lucilene CURY and Cleonildi TIBIRIÇÁ.

ABSTRACT

The researchers of the CNPQ “Cibernética Pedagógica” – Digital Languages Laboratory (LLD) of the School of Communication and Arts of the University of São Paulo (Brazil), have been working towards understanding the different features of interdisciplinarity and, in the present paper, the authors ponder over the matter of technology and its interfaces with science and education, under the influence of Marshall McLuhan, Edgar Morin, Jacques Derrida, and the philosophers of Frankfurt’s critical theory, Herbert Marcuse and J. Habermas.

It is proposed, under this focus, a theoretical reflection over the actions that take place in real social conjectures, in accordance to the results already obtained through projects carried out by the research group – specially the “Atalhos para a Inclusão Digital” -, making it possible to describe a scientific practice relevant to contemporaneity, which, in its course, can appropriate itself in a critical way to technology, breaking with the strict epistemological paradigms and proceed to researches that shall make reference to theoretical studies of different fields of knowledge, emphasizing the interdisciplinarity as an essential substrate of this reflection, always intending to promote Education.

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Improved the Quality of Experience Assessment with Quality Index Based Frames over IPTV Network

Diego J. Botia, Javier F. Botia, Natalia. Gaviria G, José M. Menéndez and David Jimenez.

ABSTRACT

Assessing the Quality of Experience (QoE) for multimedia services transmitted over a network has become a major issue for telecom providers (Telcos), because it can determine the real user satisfaction regarding the service they hire. For this reason, we present the metrics based on the Reduced Reference (RR) methodology called Quality Index Based Frame (IQBF) and New Undecodable Frames Index (NUFI) that are simple metrics to implement and  it  requires low computer resources. Also, high correlations are observed with metrics widely used, such as PSNR, VQM and SSIM, and clearly state their advantage.

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Multi-Layer Architecture for Transition of Business-Models to common Software-Tools and Optimization of the Model-Structure exempliied with Microsoft SharePoint 2010

Sebastian Lauck, Christoph Laroque and Philip Hartmann.

ABSTRACT

This paper describes a model to transfer established business models like bml models into a new dynamic structure which is immediately usable in standard software and portable between different systems without complete reengineering.  Many products like Microsoft SharePoint provide toolkits for workflow development but these workflows are stored commonly in a proprietary way and are not easy alterable and adoptable.

Aside from the possibility to embed complex business models in standard software, this approach supports runtime altering of the workflow structure in terms of optimization of the process structure to different targets like time, cost and quality. An exemplary extension to the basic model is given which describes a capacity limitation in single process steps. To respect these bounds it is necessary to embed artificial constraints in the workflow structure.

To reach the goal of a loose coupled dynamic structure a multilayer architecture was developed, in which dynamically connected objects are used to represent the formal model structure. This approach allows a translation of process-descriptions into requirement-definitions which can be stored in relational database structures.

The approach was validated by developing a prototype based on SharePoint 2010. A short description of the prototype follows the conceptual introduction.

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Investigating and Modelling the Tangles of Design and Communication

Marco Maiocchi and Margherita Pillan.

ABSTRACT

The role of product design as one of the main asset capable to promote innovation and economical rise is well known and made popular by mass media, and so is its role with respect to the excellence of industrial products including aesthetic qualities and emotional factors. Following tradition Design is mainly based on technical skills and artistic intuition, transferred through atelier-like activities from teacher –wizards to apprentice-wizards learning by examples, and without any guarantee of the results. In fact, what is commonly called Design has been scarcely modelled and the mechanisms of attraction of designed products are still scarcely understood.

The paper presents an original model of Design, and discusses the communication nature of the discipline, exploring the compositional structure of the design artefacts, the role of the perception mechanisms in provoking the construction of meanings and in the arousal of emotions; some possible new conceptual tools are presented, as well as some experiences.

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A Logistic Regression Analysis of Retention, Progression, and Graduation

Ebenezer F. Kolajo.

ABSTRACT

Growing discontent with return on investment in higher education has catapulted public discussion on college completion to the forefront. The purpose of this study is to evaluate the profile of students who have attained a four-year degree in six or less years to predict the relative importance of demographic and pre-college factors, as well as college behaviors on retention, progression, and graduation.  A logistic regression analysis and descriptive statistics are used to evaluate those student characteristics. The study results showed that college behavioral attributes including the first semester grade point average, full-time enrollment, early selection of a major or pre-major are more critical for academic success and persistence in college. The overall results have contributed some insights to the analysis of ways and means of improving retention, progression, and graduation at the focus institution.

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3D-Surface-Model for Injection Speed Process

Ma’moun A. Abu-Ayyad.

ABSTRACT

Injection  velocity control in plastic injection molding is challenging as this process is inherently nonlinear, requiring an adaptive control strategy for good  tracking of complex  velocity trajectories. In this paper, a surface based model approach is developed tracking complex trajectories of injection velocity.  This technique employs a 3-dimensional (3D) nonlinear surface model of the controlled variable  (injection  velocity) in the overall control architecture to calculate the manipulated variable or control action to a hydraulic servovalve. The strategy uses the  controlled and manipulated variables as inputs to the  3D surface to update the nonlinear plant and controller parameters while the closed-loop control is executed, thereby  handling the  nonlinear characteristics of the plant being controlled.

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