Abstract: Modern motion control systems are more and more acting as “agents” between skilled human operator and environment (robot assisted surgery, microparts handling, teleoperation, etc.). In such situations design of control should encompass wide range of very demanding tasks. At the lower level one should consider tasks of controlling individual systems - like single DOF systems, motor control, robotic manipulator or mobile robot. On the system level control of bilateral or multilateral interaction between systems of the same or different nature, the remote control in master-slave systems, haptics etc. should be considered. Such a complexity of motion control system functions poses a challenge for control systems designers due to the diversity of the tasks and changing structure of the system and the interaction with environment. In general design of motion control system should take into account (i) unconstrained motion - performed without interaction with environment or other system, (ii) motion in which system should maintain its trajectory despite of the interaction with other systems, (iii) constrained motion where system should modify its behavior due to interaction with environment or another system or should maintain specified interconnection - virtual or real - with other system and (iv) in remote operation control system should be able to reflect the sensation of unknown environment to the human operator. In this talk we will discuss different frameworks for complex motion control design for unconstrained and constrained motion - when system moving without obstacles, or is in contact with environment or another system or has certain functional interaction with another system. The problems related to bilateral and multilateral systems, maintenance of virtual relation among mobile robots and control of haptic systems will be discussed.

PLENARY LECTURE 2

Photosensors in Daylight Responsive Systems for Optimum Energy Use and Conservation of Optical Comfort

Professor Frangiskos V. Topalis

Lab. of Photometry, National Technical University of Athens

Iroon Politexniou 9, 157 80, Greece

E-mail: topalis@ieee.org

Abstract: The application of innovative technologies of automatic control in lighting systems gains daily the interest of engineers, constructors and users. The main purpose of these applications is the energy savings. Daylight control is a form of automatic control that replaces the manual control of the users. The core of this system is the photosensor, which creates a signal in proportion to the amount of the daylight that detects, using its spatial and spectral response. The signal of the photosensor can be combined with dimming electronic ballasts which adjust the electric light output giving a great potential for energy savings in areas with high levels of daylight.

Nevertheless, the daylight responsive systems are widely misunderstood and they have been characterized hastily as problematic systems. The lack of knowledge and comprehension of these systems is a great withdraw against their widespread use and a lost opportunity for energy savings. In this present study becomes effort to overcome these difficulties clarifying the operation procedures of the photosensors and their function as part of the lighting system. Also techniques for their evaluation are proposed through an analysis of experimental data of the characteristics that influence their operation and advices for their optimum placement in spaces of application.

PLENARY LECTURE 3

The International Scientific Dialogue in
Electrical Engineering

Prof. Nikos E. Mastorakis

Military Inst. of University Education

Hellenic Naval Academy

Terma Hatzikyriakou 18539,

Piraeus, GREECE

http://www.wseas.org/mastorakis

SESSION: Advances on Microelectronics I

Chair: Andreas Terzis, Yaw-Ling Lin

Switching properties of an arbitrarily excited nonlinear electron-wave directional coupler	Andreas F. Terzis and Emmanuel Paspalakis	557-254
Analysis and Parametric Modeling of RF MEMS Capacitive Shunt Switch	Hazem Hassan, Hassan Ibrahim, and Nidal Abu Ghalioun	557-322
Design and Implementation of a Cipher System (LAM) on a FPGA based on PCI architecture	Panagiotis Margaronis, Lambrinoudakis Kostantinos, Gritzalis Stefanos , Antonidakis Emmanouil, Chrysocheris Ilias	557-296
Digital Design of a Key Synchronization System on a FPGA for a network use	Panagiotis Margaronis, Lambrinoudakis Kostantinos, Gritzalis Stefanos , Antonidakis Emmanouil, Rigakis Iraklis	557-297
Tools and Algorithms for Refined Comparison of Protein Structures	Yaw-Ling Lin and Shih-Peng Huang	557-163

Monday, May 28 2007

SESSION: Advances on Microelectronics II

Chair: Hwang-Cherng Chow, Ichirou Takahashi

A Low Noise and Reliable CMOS I/O Buffer for Mixed Low Voltage Applications	Hwang-cherng Chow and You-Gang Chen	557-286
Fabrication of Pt/Sr₂(Ta_1-x,Nb_x)₂O₇/SiO₂/Si Field-Effect Transistor for One-Transistor-Type Ferroelectric Random Access Memory	Ichirou Takahashi, Keita Azumi, Yasuyuki Shirai, Masaki Hirayama, Akinobu Teramoto, Shigetoshi Sugawa, Tadahiro Ohmi	557-180
An Ant Colony Optimization Approach for the Protein Side Chain Packing Problem	Jing-Liang Hsin, Chang-Biau Yang, Kuo-Si Huang, Chia-Ning Yang	557-202
Reliability of Single-Electron Logic Gates	Mawahib Sulieman	557-195
The impact of MOSFET’s physical parameters on its threshold voltage	Milaim Zabeli, Nebi Caka, Myzafere Limani, Qamil Kabashi	557-161
A simple realization of negative type differential difference current conveyor (DDCC)	Muhammed A. Ibrahim	557-193

SESSION: Advances on Nanoelectronics

Chair: Sina Khorasani, Nasser Shahtahmasebi

Wavelet Method for Computing Energy Band Diagram of Semiconductors	Majid Sodagar, Amin Eftekharian, Sina Khorasani	557-270
Calculating the Energy Band Structure Using Sampling and Green's Function Techniques	Milad Khoshnegar, Amir Hossein Hosseinia, Nima Arjmandi, and Sina Khorasani	557-271
A Green's function approach to the study of the conduction properties of electron transport through CNT/trans-PA/CNT system	Nasser Shahtahmasebi, Hossain Milani Moghaddam, Seyed Ahmad Ketabi	557-120

Tuesday, May 29 2007

SESSION: Advances on Optoelectronics

Chair: Hwang-Cherng Chow, Ichirou Takahashi

Rigorous analysis of resonance wavelength in optical fiber gratings	Hashem Vajed-Samei and Hossein Mehdipour	557-263
Preparation of Nd:YAG powder by sol-gel method in comparing with solid state reaction.	Jahangir Hasani Barbaran, Fereshteh Hajiesmaeilbaigi.	557-154
Optimal Operation Point for the Primary Harmonic Content of a Modulated Laser Diode	Meysam Bavafa, Hesam Zandi, Maysamreza Chamanzar, and Sina Khorasani	557-280
An Analytical study of Terahertz-waves Measurements by ZnTe Electro-Optic Crystal	Muhammad Siddique, Li Zhuo, Yang Suhui, Li Ping	557-186
A programmable voltage reference design	R. Ouchen, A. Hamouda, S. Khaldi, N. Bouguechal, R. Arnold, A. Wiener, O. Manck	557-148