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Issue 1, Volume 11,
January 2012
Title of the Paper: Electromagnetic
field of the large power cables and impact on the human health
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Authors: Daniela Carstea
Abstract: In this work we survey our research on domain decomposition and
related algorithms for large power electric cables and the impact on the human
health. The equations that describe the behaviour of the fields in
electromagnetic devices are coupled because most of the material properties
are temperature dependent and may depend on temperature in a nonlinear way.
More, any power loss is transformed in local heating so that the heat source
in the thermal model is the Joule-Lenz effect of the electrical current. Here
we assume that the sources of the magnetic field have sinusoidal time
dependence and we neglect the effects due to the displacement currents. The
target example is from the electric engineering. It is a large power cable in
a free space. General symmetry of the device can be used for efficient
software. The algorithms for analysis are presented in the context of the
finite element method. The results can be extended for simulation of
distributed-parameter systems described by elliptic and parabolic equations.
The domain decomposition at the level of the problem is used. In this way the
coupled magneto-thermal problem can be analyzed by a reduction of the
computational effort.
Keywords: Electrical
cables; Coupled fields; Finite element method; Bioheat equation.
Title of the Paper: Design of Logical
Structures and Characteristics analysis of AOI for Quantum Dot Cellular
Automata
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Authors: S. Karthigai
Lakshmi, G.Athisha
Abstract: Quantum dot Cellular Automata (QCA) offers a new transistorless
computing paradigm in nanotechnology. It has the potential for attractive
features such as faster speed , smaller size and low power consumption than
transistor based technology .By taking the advantages of QCA we are able to
design interesting computational architecture. The basic logic elements used
in this technology are the inverter and the majority gate (MG). The majority
gate is not a universal gate .Hence another important logic gate introduced in
this technology is And-Or-Inverter (AOI).In this paper, we propose design of
different logical structures using AOI. The rules are introduced in this paper
for easy implementation of AOI circuits for different functions and
characteristics of AOI is also defined and analyzed. Design implementations
using the AOI gate are compared with the conventional CMOS and majority gate
based QCA methodology.
Keywords: QCA,
QCADesigner, MG, AOI, CMOS, Computing and Nanotechnology
Title of the Paper: Fuzzy Logic Based
Smart Anaesthesia Monitoring System in the Operation Theatre
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Authors: Mirza Mansoor
Baig, Hamid Gholamhosseini, Michael J. Harrison
Abstract: Man has a limited ability to accurately and continuously analyse
large amounts of data. In recent years, there has been a rapid growth in
patient monitoring and medical data analysis using decision support systems,
smart alarm monitoring, expert systems and many other computer aided
protocols. The main goals of this study are to enhance the developed
diagnostic alarm system for detecting critical events during anaesthesia and
to accurately diagnose a hypovolaemia event in anaesthetized patients. The
performance of the proposed diagnostic system, fuzzy logic monitoring system-2
(FLMS-2), was validated through a series of off-line tests. When detecting
hypovolaemia a substantial level of agreement was observed between FLMS-2 and
the human expert and it is shown that system has a better performance with
sensitivity of 94%, specificity of 90% and predictability of 72%.
Keywords: Fuzzy logic
monitoring, anaesthesia monitoring, patient monitoring system, ANFIS, FIS
Issue 2, Volume 11,
February 2012
Title of the Paper: Dynamic Performance
Analysis of T Network Impedance Matching
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Authors: Rui-Jin Liao,
Jian-Wen Tan, Hua Wang, Long Li, Sheng-Ze Qiang
Abstract: Harmonic rejection ability and reflection coefficient are the most
important factors in the design of impedance matching network. However,
dynamic stability of impedance matching should be taken into account in
applications existing working frequency drift, load impedance variation and
components deviation due to tolerances and process variation. In order to
study the dynamic performance of T network impedance matching, theoretical
analysis is conducted in accordance with the Q (quality)-based design method.
The relationships between the matching result (reflection coefficient) and
components deviation, load impedance variation and operating frequency drift
are obtained. The analysis results suggest that higher Q value produces worse
dynamic stability and that matching result is more sensitive to load impedance
variation when the load reflection coefficient of static state is larger. In
designing a T network, it is need to make the tradeoff between dynamic
stability and harmonic rejection ability. The analysis results provide
theoretical basis for the design and characteristics analysis of T network
impedance matching.
Keywords: Impedance
Matching, Circuit Analysis, Dynamic Performance, Component Tolerance,
Frequency Drift, Circuit Design
Title of the Paper: A Hardware
Architecture for Motion Compensated Video Frame Rate Up-Conversion
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Authors: Huong Ho
Abstract: A hardware architecture for motion compensated, video frame rate
up-conversion (MC-FRUC) applications is presented in this paper. The MC-FRUC
architecture has been designed based on an advanced motion estimation (ME) and
motion compensated frame interpolation (MCFI) algorithm to achieve
interpolated frames with high level of quality. The proposed architecture is a
flexible and highly parallel MC-FRUC that has been designed to support frame
rate-up conversion (FRUC) for high definition (HD) video at high frame rate.
The ME building block of the MC-FRUC circuit is a reconfigurable structure
designed to support reconfigurations for single or multiple reference frames.
The MCFI building block performs frame interpolation with the objective of
minimizing of block artifacts, overlapping, and holes for the interpolated
frames. Hardware implementations for the MC-FRUC design were carried out on
FPGA where the circuit high performance FRUC capability has been validated.
Keywords: Frame rate
up-conversion, Multi-frame motion estimation, Motion-compensated frame
interpolation, Hardware architecture, FPGA implementation, Reconfigurable
Title of the Paper: Fuzzy Internal
Model Control of Nonlinear Plants with Time Delay based on Parallel
Distributed Compensation
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Authors: Snejana
Yordanova, Tasho Tashev
Abstract: The parallel-distributed compensation (PDC) together with
Takagi-Sugeno-Kang (TSK) fuzzy modelling proved to be a modern model-based
systematic approach for the design of fuzzy nonlinear controllers from
stability and robustness requirements. The usual local linear controllers
comprise a state feedback. This requires measurements of the state variables
or an observer design. The aim of the present investigation is to develop a
fuzzy internal model controller (FIMC) for a nonlinear plant with time delay
under uncertainties. The FIMC is PDC-TSK based with dynamic local linear
controllers, which are designed on the principle of the internal model
controllers to ensure local linear systems stability and robustness. The main
contribution of the paper is a method for the design of a FIMC, designed FIMC
for the control of the air temperature in a laboratory furnace and MATLAB
based simulation investigations of the closed loop system stability and
dynamic performance. The FIMC reduces the settling time and the overshoot and
improves the system robustness compared to a linear PI controller.
Keywords: Fuzzy internal
model control, MATLAB, robustness, simulation, stability, temperature, time
delay
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