PROGRAM

10th WSEAS International Conference on CIRCUITS

 

Vouliagmeni, Athens, Greece, July 10-12 2006

 

The 10th WSEAS International Conference on CIRCUITS  is Sponsored by WSEAS and WSEAS Transactions and is Supported by the WSEAS International Working Group on Circuits and Systems, the WSEAS International Working Group on Automatic Control, the WSEAS International Working Group on Power Systems, the WSEAS International Working Group on Electronics, the WSEAS International Working Group on Network Theory.
 

 

 

Monday, July 10, 2006

 

 

 

PLENARY LECTURE 1

Superlattices and High Quality p-i-n a-Si Solar Cells via Superlattice Structures

 

Professor Argyrios C. Varonides
University of Scranton, USA

varonides@Scranton.edu

 

Abstract: Amorphous silicon/alloy superlattices provide advantages in solar cell design, such as (a) effective band-gap widening (b) effective mass separation (c) increased open-circuit voltage. The latter increases via Fermi level control, due to p-doping of potential barriers, pushing EF towards the valence bands, with simultaneous widening of the effective band gap, thus leading to potentially higher collection incident wavelengths. The density of gap states in the heavily doped layer is modeled as an exponential whose parameter kT* can be varied by the doping concentrations, while its activation energy saturates at some value. This communication provides (i) a general formulation of the problem at finite temperatures as well as numerical results for specific realizable contacts (ii) detailed treatment of gap states (iii) the neutrality condition (iv) a relation between Fermi level position and open-circuit voltage in the nitride region (superlattice p-region). For a p-(a-SiN: H/a-Si: H)-i (a-Si: H)-n (a-Si: H) sample, we compute the Fermi level position relative to the a-Si: H valence band edge. For low and wide gap thin layers of the order of 2.5 to 3.5 nm, open circuit voltage values are predicted in excess of 1.05 V, and efficiencies are predicted in excess of 12%.

 

 

PLENARY LECTURΕ 2:

 

Intelligent Signal Processing Applied to Recognition and Classification of One and Multidimensional SignalsNetwork

 

Prof. Wasfy B. Mikhael

School of Electrical Engineering and Computer Science

College of Engineering and computer science

University of Central Florida

Orlando, FL.

USA

mikhael@mail.ucf.edu

 

 

Abstract: Recently, due to emerging critical applications such as biomedical, and security applications, the area of intelligent signal processing has been receiving considerable attention. In this lecture, we present an intelligent signal processing system applied to signal recognition and classification. The system employs different structures, multicriteria and multitransform . In addition, principal component analysis in the transform domain is developed which result in further improvement in the recognition accuracy and dimensionality reduction. Experimental results are given which confirm the excellent properties of the proposed approaches.

 

 

 

PLENARY LECTURΕ 3:

 

Ultrafast All-Optical Signal Processors: Fundaments and Applications

 

Prof. José Azaña

Institut National de la Recherche Scientifique (INRS)

Montreal, Quebec, CANADA

azana@emt.inrs.ca

 

Abstract: The use of photonic technologies for processing spatial or temporal information in the all-optical domain is a field of growing importance, with a strong potential for interesting applications in such diverse areas as ultrahigh-speed optical telecommunications, ultrafast metrology, optical sensing, microwave engineering, image processing and optical computing, to name only a few. Advantages of processing the information in the alloptical domain include the tremendous available bandwidth and the parallelism intrinsic to the optical approach, which translate into ultrahigh processing speeds that otherwise are not possible. The broad field of Optical Signal Processing is becoming today one of the most active research areas in optics and photonics. Research in this field will have an important impact far beyond the conventional frontiers of photonic technologies. This presentation will provide the audience with an overview of some remarkable recent theoretical and experimental developments in this increasingly important field. The focus of this talk will be on fundamental technologies and techniques for processing and manipulating optical temporal waveforms with features as short as a few hundreds of femtoseconds (corresponding bandwidths of a few terahertz). The recent progress on fiber-based optical pulse shaping technologies, of interest for ultrahigh-speed pulse sequence generation, ultrafast coding/decoding, and all-optical switching, will be reviewed. Recent demonstrations on experimental prototypes of fundamental signal processing blocks, such as real-time optical Fourier transformers or ultrafast optical differentiators, will be also discussed. Applications of some of these all-optical techniques in other fields, e.g. for broadband microwave signal generation and control, will be covered as well. The advantages, current limitations and expected future impact of all-optical information processing technologies will be stressed throughout this presentation.

 

 

 

 

 

PLENARY LECTURΕ 4:

 

Kernel Methods and Applications

Prof. Theodore B. Trafalis

University of Oklahoma School of Industrial Engineering 202 West Boyd, Room 124, Norman, OK 73019, USA
http://www.lois.ou.edu
ttrafalis@ou.edu

Abstract: The main objective of this talk is to present the theory of kernel methods and Support Vector Machines and apply those techniques in several areas with special emphasis to severe weather prediction. I will also discuss how kernel methods and neural networks can be used to uncover physically meaningful, predictive patterns in weather radar data that alert to severe weather before the severe weather occurs. Specific indices related to the analysis of severe weather data using kernel methods for rainfall estimation and tornado prediction will be also presented. Results of a recent NSF-ITR multidisciplinary research project under the title: “ A Real Time Mining of Integrated Weather Data” will be also discussed.

 

 

 

SESSION: Circuits and MOS Transistors

Chair : Valeri Mladenov, Argyrios Varonides,

 

Parametric fault model for rtd based threshold logic gates	Spyros Tragoudas, Manoj Goparaju	534-931
Amorphous Silicon Superlattice Solar cells	Argyrios Varonides	534-801
A New Biasing Technique for the MOS Transistor	Munir A. Al-Absi	534-563
Flexible Digital Scrambler/De-Scrambler System	Munir A. Al-Absi	534-507
Inductive heating facility of half-bridge inverter structure	Hsu Chun-Liang, Chen Cheng-Chuan, Huang Li-Chan Chuang Shieh-Chang	534-242
Chip Level Charge Recovery	Ashish Kumar, Vivek Asthana	534-256
A Low Voltage Low Power 5.7 GHz Variable Gain LNA in 0.18 um CMOS Technology	Hamed Elsimary	534-304

 

 

 

 

 

 

SESSION : Digital Circuits and Reconfigurable Hardware

Chair: Argyrios Varonides, Tomas Dostal

 

Design of an Ultra Low leakage Buffer Chain	Ashish Kumar	534-255
The Modulo-10 Partition Counter	Serafim Poriazis	534-573
About the FPGA implementation in the electronic equipment for the movement properties telemetry	Mihail Eugen Tanase, Ioan Lie, Dan Lascu, Mihaela Lascu	534-528
RF on-chip test by reconfiguration technique	Jerzy Dabrowski	534-386
Rapid-Prototyping Emulation System using a SystemC Control System Environment and Reconfigurable Multimedia Hardware Development Platform	Dave Carroll, Richard Gallery	534-907
Synchronous design flow for globally asynchronous locally synchronous systems	Jonas Carlsson, Kent Palmkvist, Lars Wanhammar	534-284
State-Space Analytical Modelling for on-Chip Coupling Effects	H J Kadim	534-460

 

 

 

 

 

 

SESSION : Circuits, Systems and CMOS Technologies

Chair: Jerzy Dabrowski, Ioan Lie

 

Solving the Maximum Subsequence Problem with a Hardware Agents-based System	Octavian Creţ, Zsolt Mathe, Cristina Grama, Lucia Văcariu, Flaviu Roman, Adrian Dărăbant	534-241
Role of Parasitic Capacitors of MOS Transistors in cryptographers	Mohsen Hayati and Seyed Mohsen Yaghoubi	534-247
Low Voltage Low Power CMOS Image Sensor with A New Rail-to-Rail Readout Circuit	Hwang-Cherng Chow and Jen-bor Hsiao	534-495
Bolted Busbar Connections with Slotted Bolt Holes	Raina Tzeneva, Yanko Slavtchev, Valeri Mladenov	534-205
A New Phase-Locked Loop with High Speed Phase Frequency Detector and Enhanced Lock-in	Hwang-Cherng Chow and Nan-liang Yeh	534-517
Noise Characterization of CMOS Image Sensors	Feruglio Sylvain, Pinna Andrea, Chay Cedric, Llopis Olivier, Granado Bertrand, Alexandre Annick, Garda Patrick, Vasilescu Gabriel	534-204
1.5 V Rail-to-Rail Constant Gm CMOS Differential Amplifier	Mirjana Banjevic, Niksa Tadic	534-635
Canonical structures of ARC biquad based on single transimpedance operational amplifiers	Tomas Dostal	534-203

 

 

 

 

 

 

 

Tuesday, July 11, 2006

 

 

 

 

PLENARY LECTURΕ 5:

 

Networked Control Systems: Current Research and Future

Dr T. C. Yang

University of Sussex, England

http://www.sussex.ac.uk/Users/taiyang/

 

Abstract: Research in Networked Control Systems (NCSs) is motivated by wide applications of NCS, as well as "Future Directions of Control, Dynamics, and Systems" identified in a control expert panel report. Current research activities can be divided into three categories: (1) studies that focus on NCS control system analysis and design, (2) network architecture, protocol and scheduling; and (3) experimental and simulation studies. These research activities and the impact of NCSs on traditional large-scale system control methodologies are briefly reviewed in this presentation. In addition, some possible future research is proposed. NCS is a multi-discipline, very challenging and promising research area.

 

 

 

SESSION : Circuits Systems - Simulations and Implementations

Chair: Ioannis Kyprianidis, T. C. Yang

 

Some insight into the implementation of a trans-impedance amplifier in CMOS technology using two-port network parameters	Rabin Raut	534-102
A Review of Chaotic circuits, Simulation and Implementation	Cherif Aissi and Demetrios Kazakos	534-727
Robust Companders	Demetrios Kazakos, Kami  S. Makki	534-739
Simulation of a Novel Bipolar-FET Negative Differential Resistance Circuits	Mohsen Hayati - Mazdak Rad Malkeshahi	534-200
Organization of a circuit simulator based on waveform - relaxation method	Mohsen Hayati - Mazdak Rad Malekshahi	534-199
Simulation of Electro-Thermal Effects in Device and Circuit	S. Sharifian Attar,  M.C.E. Yagoub and F. Mohammadi	534-331
Simulation of balanced surface acoustic wave (SAW) devices incorporating a modified four-port mason's equivalent circuit model	Shuming t. Wang and Mei-hui Chung	534-780
Real Time Room Acoustic Simulation by a Reflection-Diffusion Reverberator	Giovanni Costantini, Massimo Carota, Daniele Casali	534-290
Feature Selecting Model in Automatic Text Categorization of Chinese Financial Industrial News	Tsung-Yen Lee, Pin-Jen Chen, Huey-Ming Lee,	534-718

 

 

 

 

 

 

SESSION : Circuit Systems and Nonlinearity

Chair: I. M. Kyprianidis, Demetrios Kazakos 

 

Antimonotonicity in Chua's Canonical Circuit with a Smooth Nonlinearity	Ioannis Kyprianidis, Maria Fotiadou	534-235
Designing of nonlinear functions using BJT gilbert cells for nonlinear control applications	Ehsan Esfandiary, Farid Sheikholeslam, Behzad Mirzaeian	534-506
An efficient algorithm for finding all DC solutions of nonlinear circuits	Kiyotaka Yamamura,  Koki Suda,  Wataru Kuroki	534-173
Synchronization of two chaotic Duffing - type electrical oscillators	Ch. K. Volos, I. M. Kyprianidis, and I. N. Stouboulos	534-263
Investigation of single cell delay and delay mismatch in ring oscillator based test structure	Bo Zhou, Amiri Amir Mohammad, Abdelhakim Khouas	534-429
Dynamics of two resistively coupled electric circuits of 4th order	M.S. Papadopoulou,I.M. Kyprianidis, I.N. Stouboulos	534-265

 

 

 

 

 

 

SESSION: Circuits and Converters

Chair : Rabin Raut, Dorina-Mioara Purcaru

 

BiDirectional DC-to-DC Converter With Extended Voltage Transfer Ratio	Karl H. Edelmoser, Franz C. Zach	534-285
A Multi-Cell Switch-Mode Power-Supply Concept Featuring Inherent Input Voltage Balancing	K. Edelmoser H. Ertl F. Zach	534-373
A New CMOS-DC/DC-Step-Up Converter for up to 2 mW Enduring Loads	Daniel Batas, Klaus Schumacher	534-337
Decay interval of the inductor currents in DC-to-DC fourth-order PWM converters	Elena Niculescu, E.P. Iancu and Dorina-Mioara Purcaru	534-954
A steady-state analysis of PWM SEPIC converter	Elena Niculescu, Dorina-Mioara Purcaru, M. C. Niculescu	534-953
A New Quadratic Boost Converter with PFC Applications	Dan Lascu, Mihaela Lascu, Ioan Lie, Mihail Tănase	534-598

 

 

 

 

 

 

SESSION: Electrics, Electronics and Systems Theory

Chair : Elena Niculescu, Dorina-Mioara Purcaru 

 

Improving the Speed of Electrical Distribution Management Systems through Improved Data Representation Techniques	Mansoor Al-A'ali	594-178
Maple implementation of the Kirchhoff's “Third and fourth laws”	Nicolas Ratier, Maya Markova	534-995
Using Multimedia Techniques in Presenting the Electric Transformer Theory	Valentin Dogaru Ulieru, Costin Cepisca, Ionel Marcel,Cornel Salisteanu, Iulian Udroiu, Cristina Dogaru Ulieru	534-898
A wide-range temperature compensated pressure transducer	M. J. Burke,  S. F. Hunt	534-364
A Performant Insulation System for the Stator Winding of the 6 kV Induction Motors	Sonia Degeratu, Mihaela Popescu, Nicu G. Bizdoaca	534-274
Thermal modelling of a thermopneumatic actuator	Fernando Vidal-Verdú, Rafael Navas-González and María Josè Barguero	534-978
An Embedded Approach for Motor Control Boards Design in Mobile Robotics Applications	Claudia Massacci, Andrea Usai, Paolo Di Giamberardino	534-631

 

 

 

 

 

 

 

 

Wednesday, July 12, 2006

 

 

 

SESSION : Communication and Signal Processing Systems

Chair : Emmanuel Antonidakis, N.I.Kornilios

 

Impedance-Transforming Lumped Element Two-Branch 90º Couplers in Case of Type C	Iwata Sakagami, Masafumi Fujii, Tuya Wuren	534-787
A FFT/IFFT Soft IP Generator for OFDM Communication System	Tsung-Han Tsai, Chen-Chi Peng, Tung-Mao Chen	594-185
A novel High Bandwidth Pulse-Width Modulated Inverter	John Chatzakis, Maria Vogiatzaki, Hercules Rigakis, Marios Manitis, Emmanuel Antonidakis	534-543
Research on laser Warning receiver based on sinusoidal transmission grating and high speed DSPs	Zhang Jilong, Tian Erming, Wang Zhibin	534-733
Intelligent signal processing applied to recognition and classification of one and multidimensional signals	Wasfy  B.  Mikhael,    Moataz  M. Abdelwahab     Manal  M. Abdelwahab	534-344
All-Fiber Temporal Differentiators Operating at Terahertz Speeds	Josè Azaña, Mykola Kulishov	534-629

 

 

 

 

 

 

SESSION: Circuit Analysis – Control and Filters

Chair: Georgios Stavrakakis, John Chatzakis 

 

Timing analysis of an embedded memory: spsmall	Weiwen Xu, Remy Chevallier, Emmanuelle Encrenaz-Tiphène and  Laurent Fribourg	534-317
PID Controller tuning and implementation aspects for building thermal control	Georgios Kafetzis, Petros Patelis, Evangelos Tripolitakis, Georgios Stavrakakis, Dionysia Kolokotsa, Kostantinos Kalaitzakis	534-276
Portable seven sensor soil analyser	N.I.Kornilios, I. Minadakis, A. Toutountzis, G. Papaioannou	534-508
Statistical Makespan Analysis in Asynchronous Datapath Synthesis	Koji Ohashi,Mineo Kaneko	534-277
Trade-offs in multiplier block algorithms for low power digit-serial FIR filters	Kenny Johansson, Oscar Gustafsson, Lars Wanhammar	534-269
Comparison of the DR of continuous time Gm-C filters using different structures	J. Francisco Fernández-Bootello, Manuel. Delgado-Restituto, A. Rodríguez Vázquez, Davide Brandano	534-530
Class-AB Square Root Domain Filter	M. A. Al-Gahtani	534-604

 

 

 

 

 

 

SESSION: Circuits Systems- Testing - Optimization and Applications

Chair: Juan Frausto-Solis, Giovanni Costantini 

 

Ultrasonic beamforming with delta-sigma modulators	Ioan Lie, Mihail Eugen Tanase, Dan Lascu, Mihaela Lascu	534-527
The Comparison of Three Common Methods for Reducing the Amount of Dissipation in a Feeder	Mohsen Hayati, Behnam Karami	534-201
Combining Retiming and Sequential Redundancy Addition and Removal for Sequential Logic Optimization	Enrique San Millán, Luis Entrena, Luis Mengibar, Michael García	594-123
Test Scheduling Optimization For Globally Asynchronous Locally Synchronous System-On-Chip Using Genetic Algorithm	P. Sakthivel, P. Narayanasamy	534-967
Applications of novel defected microstrip structures (DMS) in planar passive circuits	Jose Alfredo Tirado-Mendez, Marco Antonio Peyrot-Solis, Hildeberto Jardón-Aguilar, Edgar Andrade-Gonzalez, Mario Reyes-Ayala	534-864
A Simple and Practical Method for Loss Minimization in Restructured Distribution Systems	Navid Taghizadegan, Mohammadreza Feyzi	534-766
Design of Associative Memory for Gray-Scale Images by Multilayer Hopfield Neural Networks	Giovanni Costantini	534-288