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Full-Text Articles in Engineering

Torsional Waveguide Density Sensor, Radek Glaser Aug 2007

Torsional Waveguide Density Sensor, Radek Glaser

Radek Glaser

As a part of National Science Foundation-Research for Undergraduates program, a torsional wave guide density sensor has been investigated in the Laboratory of Surface Science and Technology at the University Of Maine. This simple design uses torsional piezo-electric transducers to generate torsional mode in a long circular rod.
The non-circular portion of the wave guide allows for the measurement of different properties of fluids. Theory is presented from energy balance perspective and from the acoustic wave propagation approach. A series of experiments have been conducted with variety of liquids and gases. Several relationships have been verified and also new have ...


Plastic Presentation Of Control Data In Context-Awareness Environment, Anas Hariri, Johannes Petersen, Djilali Idoughi, Christophe Kolski May 2007

Plastic Presentation Of Control Data In Context-Awareness Environment, Anas Hariri, Johannes Petersen, Djilali Idoughi, Christophe Kolski

Professor Djilali IDOUGHI

The needs for re-adaptable presentations of supervision information are more necessary in the context-awareness environment whose environmental characteristics change frequently and the control data must be updated regularly into the Graphic User Interface (GUI), in order to provide efficiently to operators an accurate picture of the state of the system being supervised. The re-adaptation of GUI is necessary following each considerable changes in the context of use or in the measured data. We will suggest, in this paper, an approach that allows to generate GUI (in other word plastic GUI) capable to adapt dynamically at runtime to changeable context of ...


The Difficulty Factors Approach To The Design Of Lessons In Intelligent Tutor Curricula, Ryan Baker, Albert Corbett, Kenneth Koedinger Dec 2006

The Difficulty Factors Approach To The Design Of Lessons In Intelligent Tutor Curricula, Ryan Baker, Albert Corbett, Kenneth Koedinger

Ryan S.J.d. Baker

We present an approach to designing intelligent tutoring systems, termed the Difficulty Factors Approach. In this approach, the designer investigates, at each iteration of the design cycle, which skills and concepts are difficult for students, and what factors underlie those difficulties. We show that this approach complements existing design principles, producing data that helps designers apply principles in context. We also show that by continuing to investigate student difficulties throughout the design process, it is possible to discover difficulty factors initially obscured by other difficulty factors. We give an example of the application of the Difficulty Factors Approach in the ...


Controlled Language: The Next Big Thing In Translation?, Uwe Muegge Dec 2006

Controlled Language: The Next Big Thing In Translation?, Uwe Muegge

Uwe Muegge

Many global organizations are beginning to see the productivity indicators for their translation and localization processes reach a plateau. That’s an inevitable fact even for those organizations that use what’s currently billed as the latest and greatest in translation technology, such as translation memory with automated workflow components or globalization management systems. Even with these tools in place, making content available in multiple languages remains a very expensive and time-consuming proposition. For those looking for ways to reduce the cost of translation to the point where almost all materials that should be translation actually can be translated, controlled ...


Towards Web Services Oriented Unified Supervisory Hci, Djilali Idoughi, Christophe Kolski Dec 2006

Towards Web Services Oriented Unified Supervisory Hci, Djilali Idoughi, Christophe Kolski

Professor Djilali IDOUGHI

A lot of work & research has been done in HCI supervision-type industrial context, but mostly relative to control rooms and local supervision. However, many multi-site or extended and complex organisations are faced with some new challenges and trends such as supervisory systems integration and unified access of the different actors which have not been much considered so far. A service oriented solution is outlined and explained in the context of industrial supervision oriented towards to a unified and integrated supervisory HCI design. A representative supervisory scenario taken from a real case study which illustrates the approach is then described.