How the Use of Second Life Affects E-Learners’ Perceptions of Social Interaction in Online Courses Samah Mansour, Leslie Bennett, Carolyn Rude-Parkins Pages: 1-6
ABSTRACT: Educators, researchers, and online courses designers are
increasingly investigating the use of 3-D shared virtual
worlds for online education. This paper discusses the
importance of social interaction in e-learning. We present
the idea of using Second Life, a 3-D shared virtual world,
in online courses. The researchers investigated the impact
of using Second Life as a learning environment and a
communication medium in online courses. We measured
the extent to which the completion of a learning task and
the communication in Second Life can enhance the elearners’
perceptions of social interaction via a self-report
questionnaire. A prototype application called The Village
of Belknap was developed by the Delphi Center of
Teaching and Learning at the University of Louisville.
The study compared the perception of social interaction of
e-learners who participated in Second Life sessions with
the perception of social interaction of e-learners who did
not participate in the Second Life sessions. The results
indicated that the use of Second Life has a positive impact
on experiencing a high perception of social interaction in
online courses.
Interactive Assignments for Online Students Pam Lowry Pages: 7-10
ABSTRACT: Students can experience first hand through interactive
assignments what is involved in teaching an online course.
Most students develop a whole new appreciation for the student
learning process. Faculty are beginning to realize that online
instruction is more than a series of readings posted to a course
management system. This paper summarizes the faculty
member’s instructional strategies involved when creating
student interaction assignments. The paper also summarizes the
assignments, discussion board, and trends in education from the
student’s perspective. In summary, it concludes with the
faculty’s overall perspective concerning these assignments and
how the assignments could be more effective for the student.
Multi-disciplinary System Engineering and the Compatibility Modeling Language (U)CML Markus Brandstatter, Carolin Eckl Pages: 11-16
ABSTRACT: Over time, technical systems such as automobiles or spacecraft
have grown more complex due to the incorporation of
increasingly more and different components. The integration of
these components, which are frequently designed and
constructed within separate departments and companies may
lead to malfunctioning systems as their interplay cannot be
tested within the earlier phases of development.
This paper introduces compatibility management as one
solution to the problems of late component integration.
Compatibility management is carried out on a common crossdomain
model of the system and therefore allows to test
compatibility early on.
We show how compatibility management can be embedded into
the phased development of ECSS-M-30A and present the
(Unified) Compatibility Modeling Language ((U)CML), which
is used for the underlying cross-domain model. A case study
demonstrates the application of (U)CML in the development of
a small satellite and explains different degrees of compatibility.
Scaling Exponent Determined by a Bio-Signal Computation for the Healthy
and Diseased Heartbeat Toru Yazawa, Katsunori Tanaka, Atsushi Kato, Tomoo Katsuyama Pages: 17-22
ABSTRACT: We analyzed heartbeat-intervals by using our own program of
detrended fluctuation analysis (DFA). “Alternans” is an
arrhythmia exhibiting alternating amplitude or alternating
interval from heartbeat to heartbeat, which was first described in
1872 by Traube. Recently, alternans was finally recognized as
the harbinger of a cardiac disease because physicians noticed
that an ischemic heart exhibits alternans. To quantify irregularity
of the heartbeat including alternans, we used the DFA and
revealed that the alternans rhythm lowers the scaling exponent.
We conclude that the scaling exponent calculated by the DFA
reflects a risk for the “failing” heart. The scaling exponents
could determine whether the subjects are under sick or healthy
conditions on the basis of cardiac physiology.
A University-based Forensics Training Center as a Regional Outreach, Education, and Research activity Rayford B. Vaughn, David A. Dampier Pages: 23-28
ABSTRACT: This paper describes a university-based Forensics Training Center (FTC) established by a Department of Justice grant for the purpose of improving the ability of state and local law enforcement in the Southeastern part of the United States to address the rising incidence of computer based crime. The FTC effort is described along with supporting evidence of its need. The program is not only a service activity, but also contributes to the Mississippi State University (MSU) security program pedagogy, and research effort.
Associative Learning for Cognitive Development of Partner Robot through Interaction with People Naoyuki Kubota Pages: 29-34
ABSTRACT: This paper discusses associative learning of a partner robots
through interaction with people. Human interaction based on
gestures is very important to realize the natural
communication. The meaning of gestures can be understood
through the actual interaction with a human and the
imitation of a human. Therefore, we propose a method for
associative learning based on imitation and conversation to
realize the natural communication. Steady-state genetic
algorithms are applied for detecting human face and objects
in image processing. Spiking neural networks are applied for
memorizing spatio-temporal patterns of human hand
motions, and relationship among perceptual information.
Furthermore, we conduct several experiments of the partner
robot on the interaction based on imitation and conversation
with people. The experimental results show that the
proposed method can refine the relationship among the
perceptual information, and can reflect the updated
relationship to the natural communication with a human.
Augmentation of Explicit Spatial Configurations by Knowledge-Based Inference on Geometric Fields Dan Tappan Pages: 35-40
ABSTRACT: A spatial configuration of a rudimentary, static, realworld
scene with known objects (animals) and properties
(positions and orientations) contains a wealth of syntactic
and semantic spatial information that can contribute to a
computational understanding far beyond what its
quantitative details alone convey. This work presents an
approach that (1) quantitatively represents what a
configuration explicitly states, (2) integrates this
information with implicit, commonsense background
knowledge of its objects and properties, (3) infers
additional, contextually appropriate, commonsense
spatial information from and about their
interrelationships, and (4) augments the original
representation with this combined information. A
semantic network represents explicit, quantitative
information in a configuration. An inheritance-based
knowledge base of relevant concepts supplies implicit,
qualitative background knowledge to support semantic
interpretation. Together, these structures provide a
simple, nondeductive, constraint-based, geometric logical
formalism to infer substantial implicit knowledge for
intrinsic and deictic frames of spatial reference.
Problems and Projects Based Approach For Analog Electronic Circuits’ Course Vahé Nerguizian, Mustapha Rafaf Pages: 41-45
ABSTRACT: New educational methods and approaches are recently
introduced and implemented at several North American and
European universities using Problems and Projects Based
Approach (PPBA). The PPBA employs a teaching technique
based mostly on competences/skills rather than only on
knowledge. This method has been implemented and proven
by several pedagogical instructors and authors at several
educational institutions. This approach is used at different
disciplines such as medicine, biology, engineering and many
others. It has the advantage to improve the student’s skills
and the knowledge retention rate, and reflects the 21st
century industrial/company needs and demands. Before
implementing this approach to a course, a good resources
preparation and planning is needed upfront by the
responsible or instructor of the course to achieve the course
and students related objectives.
This paper presents the preparation, the generated
documentation and the implementation of a pilot project
utilizing PPBA education for a second year undergraduate
electronic course over a complete semester, and for two
different class groups (morning and evening groups). The
outcome of this project (achieved goals, observed difficulties
and lessons learned) is presented based on different tools
such as students ‘in class’ communication and feedback,
different course evaluation forms and the
professor/instructor feedback.
Resources, challenges, difficulties and recommendations are
also assessed and presented. The impact, the effect and the
results (during and at the end of the academic fall session) of
the PPBA on students and instructor are discussed,
validated, managed and communicated to help other
instructor in taking appropriate approach decisions with
respect to this new educational approach compared to the
classical one.
| | New Algorithm For Calculating Wavelet Transforms Piotr Lipinski, Mykhaylo Yatsymirskyy Pages: 46-50
ABSTRACT: In this article we introduce a new algorithm for computing
Discrete Wavelet Transforms (DWT). The algorithm aims
at reducing the number of multiplications, required to
compute a DWT. The algorithm is general and can be
used to compute a variety of wavelet transform
(Daubechies and CDF). Here we focus on CDF 9/7 filters,
which are used in JPEG2000 compression standard. We
show that the algorithm outperforms convolution-based
and lifting-based algorithms in terms of number of
multiplications.
Computer-based Monitoring for Decision Support Systems and Disaster Preparedness in Buildings Alan Vinh Pages: 51-56
ABSTRACT: The operation of modern buildings can support a vast amount of static and real-time data. Static information such as building schematics is vital for security and rescue purposes. There is a need for building managers and for first responders to be notified of designated building alerts in real-time so that actions can be performed promptly. The capability to monitor building devices and to keep the first responder community updated with the latest building information during emergency situations, as well as the ability to remotely control certain building devices and processes, can be realized today.
This paper describes the various challenges encountered in the research area of building interoperability and proposes methods and insights for developing a standards framework to enable communication between building information systems and first responder information systems. Having a standards framework in place will assist in the development and deployment of commercial products in support of building interoperability.
Collaborative Trends in Higher Education Parwaiz Karamat, Krassie Petrova Pages: 57-62
ABSTRACT: The emerging information and communications technologies
(ICT) have the potential to strengthen education and make
universities more responsive to the needs of their students. The
emergence and the proliferation of models for online and
flexible learning initiated a process of convergence between the
traditionally distinct and separate distance education and faceto-
face education as universities are becoming increasingly
enabled to collaborate and develop innovative teaching
initiatives. This paper explores some of the ways in which
institutions can use technological progress to their best
advantage and how they can improve the horizontal bonds
between them by adapting and implementing Internet based
technologies based on the premise that as distance no longer
determines the cost of communicating electronically, common
interests and experience, and shared pursuits rather than
proximity bind stakeholders together. Finally the ways in
which the role of the teacher is changing from that of a subject
expert to that of a facilitator and counsellor who uses the World
Wide Web and high-speed/ high-capacity networks as a vehicle
to perform are considered with a focus on how the improved
new technologies can be used to support the common interests,
experience and academic objectives in different institutions,
and to contribute to the creation of a global learning
environment.
Modeling and Solving the Train Pathing Problem Yusin Lee, Chuen-Yih Chen Pages: 63-68
ABSTRACT: In a railroad system, train pathing is concerned with the
assignment of trains to links and tracks, and train timetabling
allocates time slots to trains. In this paper, we present an
optimization heuristic to solve the train pathing and timetabling
problem. This heuristic allows the dwell time of trains in a
station or link to be dependent on the assigned tracks. It also
allows the minimum clearance time between the trains to
depend on their relative status. The heuristic generates a number
of alternative paths for each train service in the initialization
phase. Then it uses a neighborhood search approach to find
good feasible combinations of these paths. A linear program is
developed to evaluate the quality of each combination that is
encountered. Numerical examples are provided.
Modeling and Simulation of Electromutagenic Processes for Multiscale Modification of Concrete Jinko Kanno, Nicholas Richardson, James Phillips, Kunal Kupwade-Patil, Daniela S. Mainardi, Henry E. Cardenas Pages: 69-74
ABSTRACT: Concrete contains numerous pores that allow degradation when chloride ions migrate through these paths and make contact with the steel reinforcement in a structure. Chlorides come mainly from the sea or de-icing salts. To keep the reinforcement from being exposed to chlorides, it is possible to electrokinetically force nanoparticles into the pores, blocking access. This procedure is called electrokinetic nanoparticle treatment. When the particles used are reactive in nature, the process becomes both structural and chemical in nature. We use the term electromutagenic processing to describe such extensive electrochemical remodeling. Filling the pores in a block of concrete with solid materials or nanoparticles tends to improve the strength significantly. In this paper, results obtained from modeling and simulation were aimed at multi-scale porosity reduction of concrete. Since nanoparticles and pores were modeled with spheres and cylinders having different sizes, the results were compared with traditional sphere packing problems in mathematics. There were significant differences observed related to the sizes of spheres and allowable boundary conditions. From traditional sphere packing analysis the highest porosity reduction anticipated was 74%. In contrast, the highest pore reduction obtained in this work was approximately 50%, which matched results from actual electrokinetic nanoparticle treatments. This work also compared the analytical and simulation methods used for several sizes of nanoparticles and pores.
Generation and Application of Virtual Dynamic Learning Environments Esther Zaretsky Pages: 75-81
ABSTRACT: The generation of virtual dynamic learning environments by
mental imagery improved physical education of student
teachers. Up-to-date studies showed that training computerized
simulations improved spatial abilities, especially visualization
of the body’s movements in space, and enhanced academic
achievements. The main program of the research concentrated
on creating teaching units focusing on a variety of physical
skills through computerized dynamic presentations. The
findings showed that as the student teachers practiced the
creation of simulations through the PowerPoint Software, it
became clear to them how the computer is related to physical
activities. Consequently their presentations became highly
animated, and applied to the natural environment. The student
teachers applied their presentations in their practical classroom
and reported about their pupils’ progress in physical skills.
Moreover the motivation of the student teachers and pupils to
both modes of learning, manipulating virtually and physically,
was enhanced.
System Response Analysis and Model Order Reduction, Using Conventional Method, Bond Graph Technique and Genetic Programming Lubna Moin, Vali Uddin, Shahid Ali Pages: 82-88
ABSTRACT: This research paper basically explores
and compares the different modeling
and analysis techniques and than it
also explores the model order
reduction approach and significance.
The traditional modeling and
simulation techniques for dynamic
systems are generally adequate for
single-domain systems only, but the
Bond Graph technique provides new
strategies for reliable solutions of
multi-domain system. They are also
used for analyzing linear and non
linear dynamic production system,
artificial intelligence, image
processing, robotics and industrial
automation.
This paper describes a unique
technique of generating the Genetic
design from the tree structured
transfer function obtained from Bond
Graph. This research work combines
bond graphs for model representation
with Genetic programming for
exploring different ideas on design
space tree structured transfer function
result from replacing typical bond
graph element with their impedance
equivalent specifying impedance lows
for Bond Graph multiport. This tree
structured form thus obtained from
Bond Graph is applied for generating
the Genetic Tree. Application studies
will identify key issues and
importance for advancing this
approach towards becoming on
effective and efficient design tool for
synthesizing design for Electrical
system.
In the first phase, the system is
modeled using Bond Graph technique.
Its system response and transfer
function with conventional and Bond
Graph method is analyzed and then a
approach towards model order
reduction is observed. The suggested
algorithm and other known modern
model order reduction techniques are
applied to a 11th order high pass filter
[1], with different approach. The
model order reduction technique
developed in this paper has least
reduction errors and secondly the
final model retains structural
information. The system response and
the stability analysis of the system
transfer function taken by
conventional and by Bond Graph
method is compared and analyzed.
The approach towards the Genetic
Tree formation from the Bond Graph
is also developed. The model order
reduction using Genetic Tree is in
progress.
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