Creating knowledge maps in Virtual Learning Environments

The intention of this paper is to show a reflexive study about knowledge representation through maps in virtual learning environments (VLE). The aim of this research is to investigate how maps can be used to build information networks, contribute to the collective building of knowledge, and facilitate research and pedagogical mediation in VLEs. For this purpose, the specialization post-graduation online course “Software Use in Qualitative Research” was analyzed. During this analysis, I discuss meaningful learning through maps built using the mapping software Nestor Web Cartographer, CMap tools and Compendium. I then present some important aspects about how maps can contribute to online content design, tutoring diagnostic and assessment applications

Development of the premixing injector in burner system

The alternative fuel is good attention especially for renewable and prevention energy such as biodiesel. Biodiesel fuel (BDF) has a potential for external combustion. BDF is one of the hydrocarbon fuels. Palm oil Biodiesel is free from sulfur and produced by esterification and transesterification reaction of vegetable oil with low molecular weight alcohol, such as ethanol or methanol. The objectives of this research are design the mixing injector fuel and water-fuel emulsion with air for open burner and analyze the behavior of mixture spray formation between fuel (DF and BDF) and water-fuel emulsion. Premix injector use for external combustion especially open burner system. The disadvantages of BDF are high toxic emissions such as NOx, CO and particular matter (PM) and but it can reduced the performance of burner system. High toxic emission can be solved by using a new concept injector with mixing fuel-water emulsion and air. The additional water for combustion process can reduce the NOx emissions, soot, and the flame temperature. This research focuses the Spray angle, penetration, and flame length with secondary and without secondary air. CPO biodiesel has longer penetration length and spray area than diesel, but the spray angle is smaller than diesel. The different of flame Image between pure fuel and water mix with fuel is the flame color. Water mix with fuel has brightness color and shorter flame than pure fuel

Designing navigable information spaces

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.Includes bibliographical references (p. 159-164).by Mark A. Foltz.M.S

Space Education with The Living Textbook, A web-based tool using a Concept Browser

The ability to recognize the relationships between concepts is a crucial aspect of meaningful learning. Expert-generated concept maps have been shown to help students in forging connections by acting as scaffolds for cognitive processing. The Faculty of Geo-Information Science and Earth Observation (ITC) of the University of Twente is developing a Living Textbook which combines an online knowledge repository with an interactive map visualizing the relationships between concepts. Our teachers and students have started to use this in the core modules at the start of our MSc programme. Tests show that this is a promising approach that drives us to further develop its procedures and applications

Knowledge mapping with Compendium in academic research and online education

This paper focuses on mapping information, ideas and arguments in virtual learning environments, as part of ongoing research into how this can contribute to distance education, open content learning communities, and distance research training. We introduce the idea of cartographic representations for learning, before describing the freely available Compendium hypermedia knowledge mapping tool developed at the UK’s Open University (OU), which provides an open architecture, information management environment supporting multiple ways to manage connections between ideas and documents. We then summarise several contexts in which it is being deployed with promising results: (1) e-PhDs: supervision and knowledge management for distance doctoral students; (2) Literature Analysis: mapping argument structures in order to identify emergent themes and cross-paper connections; (3) Online Tutoring of e-learning students, investigating a postgraduate online course at PUC-Cogeae, Brazil. We conclude by outlining how ongoing and future work is integrating knowledge mapping with replayable video conferences, and a major new investigation into knowledge mapping to support self-organising communities of learners and educators around OU Open Content

A hypermedia design for both high and low knowledge readers

The purpose of this case study is to examine possibilities for improving upon hypermedia design in regards to readers and their varied levels of prior knowledge. By creating a hypermedia website that looks at the development of rock climbing at Coopers Rock State Forest, I will explore the possibility of using prompts intended to help prepare readers with low levels of subject (rock climbing) knowledge to understand and make sense of the content. However, at the same time, it is important to allow readers with high levels of subject knowledge to bypass these prompts because of their ability to limit a high knowledge reader\u27s tendency to engage in active processing. This project will provide a model to act as a means of comparison and critique for future hypermedia designs

From Social Tagging to Social Hierarchies: Sharing Deeper Structural Knowledge in Web 2.0

Social tagging systems, such as del.icio.us, have helped users find and reuse information by sharing individuals’ structural knowledge, i.e., the knowledge of relationships among documents and concepts. Besides being an Internet phenomenon, social tagging can help organizations manage their intranet document repositories. The structural knowledge embedded in tags is flat, shallow, and often ambiguous however. We develop a theoretical model to argue for potential benefits of sharing deeper structural knowledge in an electronic document repository through personal document hierarchies. Based on the theoretical model, we design a “social hierarchies” system. Deployment and exploratory study confirm the benefits of sharing personal hierarchies in a collaborative knowledge work environment and suggest future research directions