This paper focuses on the Content and Language Integrated Learning (CLIL) method for (foreign) la... more This paper focuses on the Content and Language Integrated Learning (CLIL) method for (foreign) language teaching. The CLIL approach is rapidly gaining momentum across Europe and all over the world. It is the result of recent European Union efforts to develop and apply innovative educational practices of interdisciplinary character in order to bridge the gap between foreign language education and optimum learning outcomes. In order to investigate the compatibility of CLIL with the contemporary Greek educational reality, a small-scale experimental research study was set up, including the development of original e-learning material, a pilot class instruction based on this material and the evaluation of the results. The class instruction was based on Project-Based Learning whereas Collaborative Learning was supported by the Edmodo e-learning platform. Information on the progress of the pilot class instruction and the learning outcomes achieved was disseminated through a wiki set up for this task.
Abstract—Intelligent tutoring systems constitute an evolution,of computer-aided educational softw... more Abstract—Intelligent tutoring systems constitute an evolution,of computer-aided educational software. We present ,here the modules of an intelligent tutoring system for Automatic Control, developed in our department. Through the software application developed, students,can ,perform ,complete ,automatic ,control laboratory experiments, either over the departmental local area network or over the Internet. Monitoring of access ,to the ,system (local as well as international),
� Abstract—This paper presents a novel approach to assessing textile porosity by the application ... more � Abstract—This paper presents a novel approach to assessing textile porosity by the application of the image analysis techniques. The images of different types of sample fabrics, taken through a microscope when the fabric is placed over a constant light source, transfer the problem into the image analysis domain. Indeed, porosity can thus be expressed in terms of a brightness
[1993 Proceedings] IEEE Signal Processing Workshop on Higher-Order Statistics, 1993
Third order statistics of speech signals are not identically zero, as it would be expected based ... more Third order statistics of speech signals are not identically zero, as it would be expected based on the linear model for voice. This is due to quadratic harmonic coupling produced in the vocal tract. Based on this observation, third order cumulants are employed to address the endpoint detection problem in low SNR level recordings due to their immunity to (colored)
Scattering and Biomedical Engineering - Modeling and Applications- Proceedings of the Fifth International Workshop on Mathematical Methods in Scattering Theory and Biomedical Technology, 2002
Proceedings of 13th International Conference on Digital Signal Processing, 1997
In a variety of problems a random process is observed at different resolutions while knowledge of... more In a variety of problems a random process is observed at different resolutions while knowledge of the corresponding scale conversion ratio usually contains useful information related to problem-specific quantities. A method is proposed which exploits cumulant domain relations of such signals in order to yield fractional estimates of the unknown conversion ratio. The noise insensitivity and shift invariance property of
ICECS'99. Proceedings of ICECS '99. 6th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.99EX357), 1999
... 1-6, 1998. [17] Varner, J., Potter, R., Rohrbaugh, J., A proce-dure for automatic classifica... more ... 1-6, 1998. [17] Varner, J., Potter, R., Rohrbaugh, J., A proce-dure for automatic classification of EEG genetic variants, Processing of biological signals, 30.9-3, Annual nternational Conference of the IEEE Engi-neering in Medicine and Biology Society, vol. 13, no. 1, 1991. ...
http://bookboon.com/en/electronics-and-computing-in-textiles-ebook Electronics and Computing in T... more http://bookboon.com/en/electronics-and-computing-in-textiles-ebook Electronics and Computing in Textiles connects the fields of electronics and computing with the field of textiles presenting the principles of the disciplines of electronics and computing with examples and applications in textiles. This structure is very important, especially because of the expansion of textiles in the modern multifunctional materials and products world. Furthermore, the progress in the textile processes with the use of automation systems is based mainly on electronic and computing concepts. Thus, Electronics and Computing in Textiles is essential in the modern textile engineering curriculum.
2009 16th International Conference on Systems, Signals and Image Processing, IWSSIP 2009, 2009
The phase of an audio/speech signal conveys critical information, which is exploited in a variety... more The phase of an audio/speech signal conveys critical information, which is exploited in a variety of applications. Accurate phase information extraction is a prerequisite for applications such as coding, synchronization, synthesis or recognition. However, signal phase extraction is not a straightforward procedure, mainly due to the discontinuities appearing in it (phase 'wrapping' effect). In previously published work, the Hartley phase
2009 16th International Conference on Systems, Signals and Image Processing, IWSSIP 2009, 2009
In applications like audio recording and reproduction systems, the reliable and accurate implemen... more In applications like audio recording and reproduction systems, the reliable and accurate implementation of analog filters is important since it influences both the steady-state and transient characteristics of the overall system and therefore the quality of produced sound. The relatively recent emergence of commercially available field programmable analog arrays (FPAAs) provides an interesting alternative to the flexibility of the digital approximation of analog filters. In the present work, a series of widely used analog filter types are designed and implemented on FPAAs and their impulse responses are measured using an MLS system analyzer. The corresponding ideal impulse responses of the specific filters are also obtained analytically and imported to the MLS system analyzer. The comparative study of the time-, frequency- and time-frequency performance of the FPAA implementation versus the ideal filters provides a measure of the accuracy and reliability of the FPAA-based filter implementation solution.
DSP 2009: 16th International Conference on Digital Signal Processing, Proceedings, 2009
ldquoSoundscapesrdquo are maps that depict the sound content of an area at a time interval. Sound... more ldquoSoundscapesrdquo are maps that depict the sound content of an area at a time interval. Sound features encapsulate information which can be combined with the visual features of a landscape, in order to produce useful ecological observations/data, for areas of environmental or ecological interest. These include monitoring of the wildlife, the inhabitation and the use/human activities of the area, as
... BIOGRAPHIES Ioannis Paraskevas (Ph.D., MIET) received the B.Eng. ... His research interests i... more ... BIOGRAPHIES Ioannis Paraskevas (Ph.D., MIET) received the B.Eng. ... His research interests include power electronics, microcontroller based systems, telemetry and remote control of processes as well as power applications in light industry. Stelios Potirakis received the B.Sc. ...
... His research interests include electronics, RF microelectronics design and testing, error det... more ... His research interests include electronics, RF microelectronics design and testing, error detection and correction, and educational technologies. Ioannis Paraskevas (Ph.D., MIET) received the B.Eng. ... Stelios Potirakis received the B.Sc. ...
This paper focuses on the Content and Language Integrated Learning (CLIL) method for (foreign) la... more This paper focuses on the Content and Language Integrated Learning (CLIL) method for (foreign) language teaching. The CLIL approach is rapidly gaining momentum across Europe and all over the world. It is the result of recent European Union efforts to develop and apply innovative educational practices of interdisciplinary character in order to bridge the gap between foreign language education and optimum learning outcomes. In order to investigate the compatibility of CLIL with the contemporary Greek educational reality, a small-scale experimental research study was set up, including the development of original e-learning material, a pilot class instruction based on this material and the evaluation of the results. The class instruction was based on Project-Based Learning whereas Collaborative Learning was supported by the Edmodo e-learning platform. Information on the progress of the pilot class instruction and the learning outcomes achieved was disseminated through a wiki set up for this task.
Abstract—Intelligent tutoring systems constitute an evolution,of computer-aided educational softw... more Abstract—Intelligent tutoring systems constitute an evolution,of computer-aided educational software. We present ,here the modules of an intelligent tutoring system for Automatic Control, developed in our department. Through the software application developed, students,can ,perform ,complete ,automatic ,control laboratory experiments, either over the departmental local area network or over the Internet. Monitoring of access ,to the ,system (local as well as international),
� Abstract—This paper presents a novel approach to assessing textile porosity by the application ... more � Abstract—This paper presents a novel approach to assessing textile porosity by the application of the image analysis techniques. The images of different types of sample fabrics, taken through a microscope when the fabric is placed over a constant light source, transfer the problem into the image analysis domain. Indeed, porosity can thus be expressed in terms of a brightness
[1993 Proceedings] IEEE Signal Processing Workshop on Higher-Order Statistics, 1993
Third order statistics of speech signals are not identically zero, as it would be expected based ... more Third order statistics of speech signals are not identically zero, as it would be expected based on the linear model for voice. This is due to quadratic harmonic coupling produced in the vocal tract. Based on this observation, third order cumulants are employed to address the endpoint detection problem in low SNR level recordings due to their immunity to (colored)
Scattering and Biomedical Engineering - Modeling and Applications- Proceedings of the Fifth International Workshop on Mathematical Methods in Scattering Theory and Biomedical Technology, 2002
Proceedings of 13th International Conference on Digital Signal Processing, 1997
In a variety of problems a random process is observed at different resolutions while knowledge of... more In a variety of problems a random process is observed at different resolutions while knowledge of the corresponding scale conversion ratio usually contains useful information related to problem-specific quantities. A method is proposed which exploits cumulant domain relations of such signals in order to yield fractional estimates of the unknown conversion ratio. The noise insensitivity and shift invariance property of
ICECS'99. Proceedings of ICECS '99. 6th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.99EX357), 1999
... 1-6, 1998. [17] Varner, J., Potter, R., Rohrbaugh, J., A proce-dure for automatic classifica... more ... 1-6, 1998. [17] Varner, J., Potter, R., Rohrbaugh, J., A proce-dure for automatic classification of EEG genetic variants, Processing of biological signals, 30.9-3, Annual nternational Conference of the IEEE Engi-neering in Medicine and Biology Society, vol. 13, no. 1, 1991. ...
http://bookboon.com/en/electronics-and-computing-in-textiles-ebook Electronics and Computing in T... more http://bookboon.com/en/electronics-and-computing-in-textiles-ebook Electronics and Computing in Textiles connects the fields of electronics and computing with the field of textiles presenting the principles of the disciplines of electronics and computing with examples and applications in textiles. This structure is very important, especially because of the expansion of textiles in the modern multifunctional materials and products world. Furthermore, the progress in the textile processes with the use of automation systems is based mainly on electronic and computing concepts. Thus, Electronics and Computing in Textiles is essential in the modern textile engineering curriculum.
2009 16th International Conference on Systems, Signals and Image Processing, IWSSIP 2009, 2009
The phase of an audio/speech signal conveys critical information, which is exploited in a variety... more The phase of an audio/speech signal conveys critical information, which is exploited in a variety of applications. Accurate phase information extraction is a prerequisite for applications such as coding, synchronization, synthesis or recognition. However, signal phase extraction is not a straightforward procedure, mainly due to the discontinuities appearing in it (phase 'wrapping' effect). In previously published work, the Hartley phase
2009 16th International Conference on Systems, Signals and Image Processing, IWSSIP 2009, 2009
In applications like audio recording and reproduction systems, the reliable and accurate implemen... more In applications like audio recording and reproduction systems, the reliable and accurate implementation of analog filters is important since it influences both the steady-state and transient characteristics of the overall system and therefore the quality of produced sound. The relatively recent emergence of commercially available field programmable analog arrays (FPAAs) provides an interesting alternative to the flexibility of the digital approximation of analog filters. In the present work, a series of widely used analog filter types are designed and implemented on FPAAs and their impulse responses are measured using an MLS system analyzer. The corresponding ideal impulse responses of the specific filters are also obtained analytically and imported to the MLS system analyzer. The comparative study of the time-, frequency- and time-frequency performance of the FPAA implementation versus the ideal filters provides a measure of the accuracy and reliability of the FPAA-based filter implementation solution.
DSP 2009: 16th International Conference on Digital Signal Processing, Proceedings, 2009
ldquoSoundscapesrdquo are maps that depict the sound content of an area at a time interval. Sound... more ldquoSoundscapesrdquo are maps that depict the sound content of an area at a time interval. Sound features encapsulate information which can be combined with the visual features of a landscape, in order to produce useful ecological observations/data, for areas of environmental or ecological interest. These include monitoring of the wildlife, the inhabitation and the use/human activities of the area, as
... BIOGRAPHIES Ioannis Paraskevas (Ph.D., MIET) received the B.Eng. ... His research interests i... more ... BIOGRAPHIES Ioannis Paraskevas (Ph.D., MIET) received the B.Eng. ... His research interests include power electronics, microcontroller based systems, telemetry and remote control of processes as well as power applications in light industry. Stelios Potirakis received the B.Sc. ...
... His research interests include electronics, RF microelectronics design and testing, error det... more ... His research interests include electronics, RF microelectronics design and testing, error detection and correction, and educational technologies. Ioannis Paraskevas (Ph.D., MIET) received the B.Eng. ... Stelios Potirakis received the B.Sc. ...
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Papers by Maria Rangoussi