PLM-based Approach for Design Verification and Validation using Manufacturing Process Knowledge Luis Toussaint, Frédéric Demoly, Nadhir Lebaal, Samuel Gomes Pages: 1-7
ABSTRACT: Out of 100 hours of engineering work, only 20 are dedicated to
real engineering and 80 are spent on what is considered as
routine activities. Readjusting the ratio of innovative vs. routine
work is a considerable challenge in the product lifecycle
management (PLM) strategy. Therefore, the main objective is
to develop an approach in order to accelerate routine processes
in engineering design. The proposed methodology called FabK
consists of capturing manufacturing knowledge and its
application towards the design verification and validation of
new engineering designs. The approach is implemented into a
Web-based PLM prototype and a Computer Aided Design
system. A series of experiments from an industrial case study is
introduced to provide significant results.
From Concept to Realization: Designing Miniature Humanoids for Running Youngbum Jun, Robert Ellenburg, Paul Oh Pages: 8-13
ABSTRACT: Humanoid robots present exciting research possibilities
such as human gaits, social interaction, and even
creativity. Full-size humanoid designs have shown
impressive capabilities, yet are custom-built and expensive.
Cost and sophistication barriers make reproducing and
verifying results very difficult. The recent proliferation of
mini-humanoids presents an affordable alternative, in that
smaller robots are cheaper to own and simpler to operate.
At less than 2000 USD, these robots are capable of
human-like motion, yet lack precision sensors and
processing power. The authors’ goal is to produce a
miniature humanoid robot that is both small and
affordable, while capable of advanced dynamic walking
and running. This requires sensing of the robot’s inertia
and velocity, the forces on its feet, and the ability to
generate and modify motion commands in real time. The
presented design uses commercial parts and simple
machining methods to minimize cost. A power-efficient
mobile x86 computer on-board leverages existing operating
systems and simplifies software development. Preliminary
results demonstrate controlled walking and feedback
control.
Reducing the Green House Gas Emissions from the Transportation Sector Oyewande Akinnikawe, Christine Ehlig-Economides Pages: 14-18
ABSTRACT: In the United States, two thirds of the carbon monoxide and
about one third of carbon dioxide emissions come from the
transportation sector. Ways to reduce these emissions in the
future include replacing gasoline and diesel by biofuels, or by
blend of biofuels with conventional gasoline and diesel, or by
compressed natural gas (CNG), or by replacing internal
combustion engines by electric motors powered by hydrogen
fuel cells or battery-powered electric vehicles recharged from
the electric grid. This presentation will review these
technologies the fuel production pathways, when they are likely
to be available, and by what fraction transportation sector green
house gas emissions could be reduced by each.
A well-to-wheels (WTW) analysis is performed on each
vehicle/ fuel technology using the GREET model and the total
energy use, the CO 2 emissions, NO x emissions, SO x emissions
for the life cycle of the vehicle technologies are calculated.
Prospects for reducing foreign oil dependence as well as
mitigating green house gases emission from the transportation
sector will be considered in the analysis.
Transaction Costs in Global Supply Chains of Manufacturing Companies Philipp Bremen, Josef Oehmen, Robert Alard, Paul Schönsleben Pages: 19-24
ABSTRACT: Outsourcing has advanced to an important measure that is
applied broadly in operations management. Nowadays,
suppliers of manufacturing companies do not only
provide direct material like raw material and operational
supplements but offer components and advanced modules
incurring many value-adding stages. Whereas in the past
companies built up local supplier networks, they recently
tend to search for global sources. However, not all
companies reach their expectations towards the success of
global sourcing projects. Important reasons for relocating
manufacturing capacities back to local suppliers or in-
house manufacturing are costs for unexpected
coordination activities, limited flexibility and declined or
fluctuating quality. The theory of Transaction Cost
Economics postulates that transaction costs of the types
information, communication and coordination determine
the governance structure of a supply chain, i.e. market,
hybrid or firm. The objective of this paper is to analyze
the cause-and-effect chain of inter-firm transaction costs
concerning global sourcing. The resulting qualitative
model is based on explorative multiple-case study.
Towards a Research Framework for ICT Use in Developing Contexts Seugnet Blignaut, Christo Els Pages: 25-33
ABSTRACT: The digital divide describes the gap among individuals, house-
holds, businesses and geographic areas on socio-economic
level, as well as unequal opportunities to access information and
communication technologies (ICTs). Castells holds the view
that informationalism of shifting global networks creates a vola-
tile and ruthless world. Those who do not contribute to the new
world economies are discarded. Consequently, much of Africa
is condemned to information black holes as Africa becomes the
graveyard of failed ICT development programmes. However, by
sharing expertise and goodwill, worldwide university networks
of science and technology can reverse the inequities brought
about by informationalism. We have a shared academic respon-
sibility to explore feasible research frameworks on the use of
ICT in developing contexts. Bronfenbrenner maintains that the
ecology of human development is experimental by nature and
design. From his Human Ecological Systems Theory we propose
a research framework for the development of socially transfor-
mative ICT goals for implementation and validation at the
School for Continuing Teacher Education at the North-West
University, South Africa.
Teaching and Assessing Teamwork Skills in Engineering and Computer Science Robert W. Lingard Pages: 34-37
ABSTRACT: To be successful in today’s workplace, engineering and
computer science students must possess high levels of teamwork
skills. Unfortunately, most engineering programs provide little
or no specific instruction in this area. This paper outlines an
assessment-driven approach toward teaching teamwork skills.
Working with the Industrial Advisory Board for the College, a
set of performance criteria for teamwork was developed. This
set of criteria was used to build an assessment instrument to
measure the extent to which students are able to achieve the
necessary skills. This set of criteria provides a clear basis for
the development of an approach toward teaching teamwork
skills. Furthermore, the results from the assessment can be used
to adjust the teaching techniques to address the particular skills
where students show some weaknesses. Although this effort is
in the early stages, the approach seems promising and will be
improved over time.
Effect of Priority Class Ratios on the Novel Delay Weighted Priority Scheduling Algorithm Vasco Quintyne, Adrian Als Pages: 38-42
ABSTRACT: In this paper, the novel Delay Weighted Priority Scheduling
(DWPS) algorithm proposed for the management of cellular
network
A Survey of Binary Similarity and Distance Measures Seung-Seok Choi, Sung-Hyuk Cha, Charles C. Tappert Pages: 43-48
ABSTRACT: The binary feature vector is one of the most common
representations of patterns and measuring similarity and
distance measures play a critical role in many problems
such as clustering, classification, etc. Ever since Jaccard
proposed a similarity measure to classify ecological
species in 1901, numerous binary similarity and distance
measures have been proposed in various fields. Applying
appropriate measures results in more accurate data
analysis. Notwithstanding, few comprehensive surveys
on binary measures have been conducted. Hence we
collected 76 binary similarity and distance measures used
over the last century and reveal their correlations through
the hierarchical clustering technique.
| | Analyzing Data Flows of State Machines Julio Cano, Ralf Seepold, Natividad Martinez Madrid Pages: 49-54
ABSTRACT: One of the key points in Model-Driven Development is
to provide a semantic anchoring that permits to design
an application based on some common semantics but at
the same time independently of the specific
characteristics of the final platform.
This paper proposes a common meta-model capable of
holding both state machine and data flow semantics,
two of the most used behaviour models. This is done so
that application behaviour can be described
independently of the specific platform. The application
behaviour can be based on the semantics of this meta-
model while at the same time code can be generated for
several specific platforms without changing the
application design.
Power Transmission by Optical Fibers for Component Inherent Communication Michael Dumke, Gerd Heiserich, Stefan Franke, Lennart Schulz, Ludger Overmeyer Pages: 55-60
ABSTRACT: The use of optical fibers for power transmission has been
investigated intensely. An optically powered device combined
with optical data transfer offers several advantages compared
to systems using electrical connections. Optical transmission
systems consist of a light source, a transmission medium and a
light receiver. The overall system performance depends on the
efficiency of opto-electronic converter devices, temperature
and illumination dependent losses, attenuation of the
transmission medium and coupling between transmitter and
fiber. This paper will summarize the state of the art for
optically powered systems and will discuss reasons for
negative influences on efficiency. Furthermore, an outlook on
power transmission by the use of a new technology for
creating polymer optical fibers (POF) via micro dispensing
will be given. This technology is capable to decrease coupling
losses by direct contacting of opto-electronic devices.
Virtual Globe Games for Geographic Learning Ola Ahlqvist Pages: 61-63
ABSTRACT: Virtual, online maps and globes allow for volunteered
geographic information to capitalize on users as sensors and
generate unprecedented access to information resources and
services. These new “Web 2.0” applications will probably
dominate development and use of virtual globes and maps in
the near future. We present an experimental platform that
integrates an existing virtual globe interface with added
functionality as follows; an interactive layer on top of the
existing map that support real time creation and manipulation
of spatial interaction objects. These objects, together with the
existing information delivered through the virtual globe, form a
game board that can be used for educational purposes.
Concepts to Analyze the Vulnerability of Critical Infrastructures - Taking into account Cybernetics Frédéric Petit, Benoît Robert Pages: 64-66
ABSTRACT: Critical Infrastructures (CIs) are complex systems. For their
operations, these infrastructures are increasingly using
Supervisory Control And Data Acquisition (SCADA) systems.
Management practices are therefore highly dependent on the
cyber tools, but also on the data needed to make these tools
work. Therefore, CIs are greatly vulnerable to degradation of
data.
In this context, this paper aims at presenting the fundamentals of
a method for analyzing the vulnerabilities of CIs towards the use
of cyber data. By characterizing cyber vulnerability of CIs, it
will be possible to improve the resilience of these networks and
to foster a proactive approach to risk management not only by
considering cybernetics from a cyber-attack point of view but
also by considering the consequences of the use of corrupted
data.
NetPosse: A Tool for Connecting Users in Virtual Communities Faisal Anwar, Hui Soo Chae, Gary Natriello Pages: 67-71
ABSTRACT: We discuss the design of Netposse, a tool that matches people in
online communities based on their intellectual and professional
interests. We frame the motivation of this tool around current
research on how learners can leverage social communities for
maximum benefit. Given this literature, we present a design for
Netposse that mines data from existing web assets and matches
people according to their areas of expertise. In addition to
matching individuals, such a system serves the purpose of query
answering as well: it allows users to search and identify others
in the community whose background qualifies them to provide
advice on a user’s topic of interest.
NewsPaperBox – Online News Space: a visual model for representing the social space of a website Selçuk Artut, Cem Öcalan Pages: 72-74
ABSTRACT: NewsPaperBox * propounds an alternative visual model
utilizing the treemap algorithm to represent the
collective use of a website that evolves in response to
user interaction. While the technology currently exists
to track various user behaviors such as number of clicks,
duration of stay on a given web site, these statistics are
not yet employed to influence the visual representation
of that site’s design in real time. In that sense, this
project propounds an alternative modeling of a
representational outlook of a website that is developed
by collaborations and competitions of its global users.
This paper proposes the experience of cyberspace as a
generative process driven by its effective user
participation.
E-Learning and Further Education: How do Individual Learning Paths support Personal Learning Processes Bertil Haack, Peter Koppatz, Margit Scholl, Frank Sistenich, Ulrike Tippe Pages: 75-79
ABSTRACT: The MOPEM project includes two fixed scenarios that have
been defined to convey the idea of “learning paths”. Our aim in
this paper is to demonstrate the contexts and conditions for
flexible learning paths that can be tailored to meet individual
needs. The concept of this kind of specialised path is to enable
learners to individualise the learning process and to adjust it to
their personal needs. We will outline the background and pro-
vide examples to explain the concept of learning stations which
we use in our four courses: Online Marketing, CRM Systems,
Business Communications and Event Marketing. This idea of
“freely” combining subject matter naturally leads to the ques-
tion of multi-applicability for the learning blocks in various
educational contexts. The answers to this question are interest-
ing not only in terms of the feasibility of learning paths from a
content and didactic point of view, but also with regard to the
economic viability of E-Learning or Blended Learning Systems,
which ultimately require technical implementation. In addition
we will present some first thoughts on the design of a prototype
“Content Pool”. It would, however, only make sense to develop
and implement this within the scope of a follow-up project.
Bus Network Modeling Using Ant Algorithms Sepideh Eshragh, Shahriar Afandizadeh Zargari, Ardeshir Faghri, Earl Rusty Lee Pages: 80-83
ABSTRACT: Bus transit network modeling is a complex and combinatorial
problem. The main purpose of this paper is to apply a
contemporary method for designing a bus transit network with
the objective of achieving optimum results. The method is
called Ant Algorithms, a Meta Heuristic method, which has
been applied to optimization problems in transportation with
noticeable success. The description of the algorithm, as well
as the main methodology and computations, is presented in
this paper. Furthermore, a case study using Ant Algorithms
applied to the city of Ghazvin, one of the most important
suburbs of Tehran, Iran, is presented.
|