Remote experimentation network - yielding an inter-university peer-to-peer e-service

The goal of this paper is to discuss the benefits and challenges of yielding an inter-continental network of remote laboratories supported and used by both European and Latin American Institutions of Higher Education. Since remote experimentation, understood as the ability to carry out real-world experiments through a simple web browser, is already a proven solution for the educational community as a supplement to on-site practical lab work (and in some cases, namely for distance learning courses, a replacement to that work), the purpose is not to discuss its technical, pedagogical, or economical strengths, but rather to raise and try to answer some questions about the underlying benefits and challenges of establishing a peer-to-peer network of remote labs. Ultimately, we regard such a network as a constructive mechanism to help students gain the working and social skills often valued by multinational/global companies, while also providing awareness of local cultural aspects

Applied Values and its Perceptions at Paul D. Camp Community College

This study sought to identify perceptions of students that have taken a previous ethics course in values , likewise and investigation of problems encountered prior to the commencement and upon the conclusion of such a course. Research questions central to the study were: 1. What aesthetic worth does such a program serve to occupational-technical students? 2. Does having a technologist as a member of the team of teachers (humanist) relieve non-traditional student anxieties in Applied Ethics courses

Design and implementation of a web-based cooperative school information system.

by Tsui Yuen.Thesis (M.Phil.)--Chinese University of Hong Kong, 1999.Includes bibliographical references (leaves 144-151).Chapter 1 --- Introduction --- p.1Chapter 1.1 --- Computer-assisted Education --- p.2Chapter 1.2 --- Motivation and Problems --- p.4Chapter 1.3 --- Objectives and Approaches --- p.7Chapter 1.4 --- Organization of Thesis --- p.9Chapter 2 --- Related Work --- p.10Chapter 2.1 --- Existing Research Projects --- p.10Chapter 2.2 --- Structural and Navigational Hypertext Presentation --- p.11Chapter 2.3 --- Multimedia Integration for Hypermedia Courseware --- p.13Chapter 2.4 --- Standalone Java Applets --- p.14Chapter 2.5 --- Software Tools Using Browser Plugins --- p.17Chapter 2.6 --- Chapter Summary --- p.18Chapter 3 --- SIS Education Scenarios --- p.19Chapter 3.1 --- Library System --- p.21Chapter 3.2 --- Groupware System --- p.24Chapter 3.3 --- Student-Monitoring System --- p.25Chapter 3.4 --- Management System --- p.26Chapter 3.5 --- Chapter Summary --- p.27Chapter 4 --- Software Architecture of SIS --- p.29Chapter 4.1 --- Client-server Model --- p.29Chapter 4.2 --- Software Configuration --- p.31Chapter 4.3 --- Software Design --- p.33Chapter 4.3.1 --- Module 1: Access Authorization Identifier (AAI) --- p.34Chapter 4.3.2 --- Module 2: Multimedia Presentation Tools (MPT) --- p.35Chapter 4.3.3 --- Module 3: Intelligent Questions Selector (IQS) --- p.38Chapter 4.3.4 --- Module 4: Online Examination Center (OEC) --- p.40Chapter 4.3.5 --- Module 5: Student History Recorder (SHR) --- p.41Chapter 4.3.6 --- Module 6: Student Performance Analyzer (SPA) --- p.42Chapter 4.3.7 --- Module 7: Electronic Mail Manager (EMM) --- p.43Chapter 4.3.8 --- Module 8: Result Querying Agent (RQA) --- p.44Chapter 4.3.9 --- Module 9: Group Activity Area (GAA) --- p.45Chapter 4.3.10 --- Module 10: Integrated Systems Logger (ISL) --- p.48Chapter 4.4 --- Chapter Summary --- p.50Chapter 5 --- Demonstration --- p.52Chapter 5.1 --- Login Dialog Boxes --- p.52Chapter 5.2 --- Services Menu for Students --- p.53Chapter 5.3 --- Teaching Materials for Students --- p.54Chapter 5.4 --- Teaching Materials for Students ´ؤ Chinese --- p.56Chapter 5.5 --- Teaching Materials for Students - English --- p.60Chapter 5.6 --- Teaching Materials for Students - Mathematics --- p.64Chapter 5.7 --- Tests for Students --- p.66Chapter 5.8 --- Tests for Students - Chinese --- p.66Chapter 5.9 --- Tests for Students - English --- p.68Chapter 5.10 --- Queries for Students --- p.70Chapter 5.11 --- Discussion Area for Students --- p.71Chapter 5.12 --- Educational Television for Students --- p.72Chapter 5.13 --- Flow of Services for Students --- p.75Chapter 5.14 --- Services Menu for Teachers --- p.76Chapter 5.15 --- Teaching Materials for Teachers --- p.77Chapter 5.16 --- Teaching Materials for Teachers - Chinese --- p.78Chapter 5.17 --- Teaching Materials for Teachers - English --- p.82Chapter 5.18 --- Tests Papers for Teachers --- p.86Chapter 5.19 --- Queries for Teachers --- p.87Chapter 5.20 --- Preparation of Test Papers for Teachers --- p.88Chapter 5.21 --- Modification of Questions for Teachers --- p.91Chapter 5.22 --- Flow of Services for Teachers --- p.95Chapter 5.23 --- Chapter Summary --- p.96Chapter 6 --- System Implementation --- p.97Chapter 6.1 --- Characteristics of Java --- p.97Chapter 6.2 --- Platform Independence --- p.98Chapter 6.3 --- Integration with Existing Packages for Java Technology --- p.100Chapter 6.4 --- Cryptography of User Passwords --- p.103Chapter 6.5 --- Transmission of Data Packages --- p.105Chapter 6.6 --- Multithreading for Multitasking --- p.108Chapter 6.7 --- Management of User Interfaces --- p.110Chapter 6.8 --- Data Structures for Temporary Storage --- p.112Chapter 6.9 --- Messages Broadcasting in Chat Rooms --- p.116Chapter 6.10 --- Playback of Audio and Video Data Files --- p.121Chapter 6.11 --- Progress of System Implementation --- p.125Chapter 6.12 --- Chapter Summary --- p.128Chapter 7 --- Discussion and Future Work --- p.129Chapter 7.1 --- Wide Spread of the World Wide Web --- p.129Chapter 7.2 --- Communication between Schools and Families --- p.130Chapter 7.3 --- Pedagogical Uses --- p.130Chapter 7.4 --- Virtual Student Community --- p.131Chapter 7.5 --- Differences between SIS and Other Web-based Educational Systems --- p.132Chapter 7.6 --- Future Work --- p.133Chapter 7.7 --- Chapter Summary --- p.138Chapter 8 --- Summary --- p.139Bibliography --- p.14

The 1981 NASA/ASEE Summer Faculty Fellowship Program: Research reports

Research reports related to spacecraft industry technological advances, requirements, and applications were considered. Some of the topic areas addressed were: (1) Fabrication, evaluation, and use of high performance composites and ceramics, (2) antenna designs, (3) electronics and microcomputer applications and mathematical modeling and programming techniques, (4) design, fabrication, and failure detection methods for structural materials, components, and total systems, and (5) chemical studies of bindary organic mixtures and polymer synthesis. Space environment parameters were also discussed

An Improved Active Network Concept and Architecture for Distributed and Dynamic Streaming Multimedia Environments with Heterogeneous Bandwidths

A problem in todays Internet infrastructure may occur when a streaming multimedia application is to take place. The information content of video and audio signals that contain moving or changing scenes may simply be too great for Internet clients with low bandwidth capacity if no adaptation is performed. In order to satisfactorily reach clients with various bandwidth capacities some works such as receiver-driven multicast and resilient overlay networks (RON) have been developed. However these efforts mainly call for modification on router level management or place additional layer to the Internet structure, which is not recommended in the nearest future due to the highly acceptance level and widely utilization of the current Internet structure, and the lengthy and tiring standardization process for a new structure or modification to be accepted. We have developed an improved active network approach for distributed and dynamic streaming multimedia environment with heterogeneous bandwidth, such as the case of the Internet. Friendly active network system (FANS) is a sample of our approach. Adopting application level active network (ALAN) mechanism, FANS participants and available media are referred through its universal resource locator (url). The system intercepts traffic flowing from source to destination and performs media post-processing at an intermediate peer. The process is performed at the application level instead of at the router level, which was the original approach of active networks. FANS requires no changes in router level management and puts no additional requirement to the current Internet architecture and, hence, instantly applicable. In comparison with ALAN, FANS possesses two significant differences. From the system overview, ALAN requires three minimum elements: clients, servers, and dynamic proxy servers. FANS, on the other hand, unifies the functionalities of those three elements. Each of peers in FANS is a client, an intermediate peer, and a media server as well. Secondly, FANS members tracking system dynamically detects the existence of a newly joined computers or mobile device, given its url is available and announced. In ALAN, the servers and the middle nodes are priori known and, hence, static. The application level approach and better performance characteristics distinguished also our work with another similar work in this field, which uses router level approach. The approach offers, in general, the following improvements: FANS promotes QoS fairness, in which clients with lower bandwidth are accommodated and receive better quality of service FANS introduces a new algorithm to determine whether or not the involvement of intermediate peer(s) to perform media post-processing enhancement services is necessary. This mechanism is important and advantageous due to the fact that intermediate post-processing increases the delay and, therefore, should only be employed selectively. FANS considers the size of media data and the capacity of clients bandwidth as network parameters that determine the level of quality of service offered. By employing the above techniques, our experiments with the Internet emulator show that our approach improves the reliability of streaming media applications in such environment

Journal of Telecommunications and Information Technology, 2003, nr 1

kwartalni

Suffolk University Academic Catalog, College of Arts and Sciences and Sawyer School of Management, 2008-2009

https://dc.suffolk.edu/cassbs-catalogs/1188/thumbnail.jp

Network-Integrated Multimedia Middleware, Services, and Applications

Today, there is a strong trend towards networked multimedia devices. However, common multimedia software architectures are restricted to perform all processing on a single system. Available software infrastructures for distributed computing — commonly referred to as middleware — only partly provide the facilities needed for supporting multimedia in distributed and dynamic environments. Approaches from the research community only focus on specific aspects and do not achieve the coverage needed for a full-featured multimedia middleware solution. The Network-Integrated Multimedia Middleware (NMM) presented in this thesis considers the network as an integral part. Despite the inherent heterogeneity of present networking and device technologies, the architecture allows to extend control and cooperation to the network and enables the development of distributed multimedia applications that transparently use local and remote components in combination. The base architecture of this middleware is augmented by several middleware services that especially aim at providing additional support for developing complex applications that involve mobile users and devices. To this end, previously not available services and corresponding abstractions are proposed, realized, and evaluated. The performance and applicability of the developed middleware and its additional services are demonstrated by describing different realized application scenarios.Eine wachsende Anzahl von Multimedia-Geraeten verfuegt heute bereits ueber Netzwerkschnittstellen. Verfueugbare Multimedia Software-Architekturen beschraeanken jedoch die gesamte Datenverarbeitung auf ein einzelnes System. Verbreitete Software-Infrastrukturen fuer Verteilte Systeme — ueblicherweise Middleware genannt — bieten nur teilweise die Eigenschaften, die fuer die Multimedia-Datenverarbeitung in vernetzten und dynamischen Umgebungen benoetigt werden. Ansaetze aus der Forschung behandeln nur spezielle Teilaspekte und erreichen deshalb nicht den Funktionsumfang einer vollwertigen Middleware fuer Multimedia. Die in dieser Arbeit beschriebene Netzwerk-Integrierte Multimedia Middleware (NMM) betrachtet das Netzwerk als integralen Bestandteil. Die Architektur erlaubt trotz der inhaerenten Heterogenitaet der vorhandenen Netzwerk- und Geraetetechnologie die Kontrolle und das Zusammenspiel von Systemen auf das Netzwerk auszuweiten. Dies ermoeglicht die Entwicklung verteilter Multimedia-Anwendungen, die transparent lokale und entfernte Komponenten zusammen einsetzen. Die Kernarchitektur dieser Middleware wird durch verschiedene Dienste erweitert, die speziell die Realisierung komplexer Anwendungsszenarien mitmobilen Geraeten und Benutzern unterstuetzt. Insbesondere werden neue, bisher nicht vorhandene Middleware-Dienste und zugehoerige Abstraktionen vorgeschlagen, realisiert und evaluiert. Anhand verschiedener Anwendungsszenarien wird die Leistungfaehigkeit, die Effizienz und die praktische Relevanz der entwickelten Middleware und der ergaenzenden Dienste demonstriert

Eighth Workshop and Tutorial on Practical Use of Coloured Petri Nets and the CPN Tools, Aarhus, Denmark, October 22-24, 2007

This booklet contains the proceedings of the Eighth Workshop on Practical Use of Coloured Petri Nets and the CPN Tools, October 22-24, 2007. The workshop is organised by the CPN group at the Department of Computer Science, University of Aarhus, Denmark. The papers are also available in electronic form via the web pages: http://www.daimi.au.dk/CPnets/workshop0