1. technology and computing

CONFERENCE TRACKS – ABBREVIATION & SCOPES
Abbreviation
N
Tracks & Scopes
Network & Communications Technology
Communication & Networks, Mobile & Wireless Technology
S
Signal & Image Processing
Image & Speech Processing
R
RF & Microwave
Antenna & Propagation
L
Lasers & Optics
M
Engineering Management
C
Computer Engineering & Applications
Optimizing Techniques, Soft Computing, Microprocessor
A
P
Automation, Mechatronics & Robotics
Power & Energy
Electric Machines & Drives, Sustainable Technology, Green Energy
E
Electronics
Microelectronics, Consumer, Nanoelectronics, Medical Electronics
CONFERENCE OVERVIEW
Day 1: Tuesday, 16th December 2014
TIME
EVENT
VENUE
0830 – 0900
Registration
0900 – 0930
Welcoming Speech
0930 – 1030
Keynote 1
Mr. Muhamed Ali Hajah Mydin
“Challenges in TEVT - Talent development in Malaysia”
1030 – 1100
Coffee Break
1100 – 1200
Keynote 2
Prof. Dr. Sureswaran Ramadass
“The Future of Internet Communications”
1200 – 1400
Lunch
Room 1
Technical Session A (1400 – 1520)
Session
A1
A2
A3
A4
Venue
Room 1
Room 2
Room 3
Room 4
Session Chair
Dr. Mohd
Tafir Mustaffa
Dr. Bakhtiar
Affendi Rosdi
Dr.
Asrulnizam
Abd. Manaf
Dr. Zuraini
Dahari
1400 – 1420
N001
S001
R001
C001
1420 – 1440
N002
S002
R002
C002
1440 – 1500
N003
S003
R003
C003
1500 – 1520
N004
S004
R004
C004
1520 – 1540
Coffee Break
Technical Session B (1540 – 1720)
Session
B1
B2
B3
B4
Venue
Room 1
Room 2
Room 3
Room 4
Session Chair
Dr. Nor
Muzlifah
Mahyuddin
Dr. Norliza
Mohd. Noor
Dr. Badrul
Hisham
Ahmad
Dr.
Rosmiwati
Mohd.
Mokhtar
1540 – 1600
N005
S005
R005
C005
1600 – 1620
N006
S006
M001
C006
1620 – 1640
N007
S007
L001
A001
1640 – 1700
N008
S008
L002
A002
S009
L003
1700 – 1720
Day 2: Wednesday, 17th December 2014
TIME
0830 – 0930
0930 – 1030
EVENT
VENUE
Keynote 3
Mr. Mohd Parid Sulaiman
“Internet of Things: Embracing The Technology”
Keynote 4
Prof. Ir. Dr. Mohd Syuhaimi Ab. Rahman
“Full Solution For High Speed Green Communication”
1030 - 1050
Room 1
Coffee Break
Technical Session C (1050 – 1310)
Session
C1
C2
C3
C4
Venue
Room 1
Room 2
Room 3
Room 4
Session Chair
Dr. Zuraini
Dahari
Dr. Md. Pauzi
Abdullah
Dr. Mohd
Tafir Mustaffa
Dr.
Asrulnizam
Abd. Manaf
1050 – 1110
P001
P007
E001
E007
1110 – 1130
P002
P008
E002
E008
1130 – 1150
P003
P009
E003
E009
1150 – 1210
P004
P010
E004
E010
1210 – 1230
P005
P011
E005
E011
1230 – 1250
P006
P012
E006
E012
1250 – 1310
1310 – 1400
E013
Lunch
TECHNICAL PROGRAM ABSTRACT
th
Tuesday, 16 December 2014
Technical Session A1
Time
: 1400 – 1520
Venue
: Room 1
Session Chair : Dr. Mohd Tafir Mustaffa
ID (#)
N001
(1570020305)
Title, Authors & Abstract
An Application for Management and Monitoring the Data Centers Based
on SNMP
Arman Roohi; Suhaimi Ibrahim; Khashayar Raeisifard
Today few organizations have a thorough understanding of what is on their
networks at any given time. This study tries to develop Computer and Network
Asset Manager (CNAM) that is a network management application which helps
large enterprises, and Small medium enterprises (SMEs) service providers,
manage their data centers and IT infrastructure efficiently and cost effectively.
CANM collects information on all hardware components of the network
instruments that are on the network. In this project, a real-time network
monitoring method is suggested for dynamic information to reduce the
complexity and cost based on network management. In the proposed method, a
Simple Network Management Protocol (SNMP) is first used to collect data for
start interaction between equipment in the specific data center, to gather these
data SNMP would need to request it from Management Information Base (MIB)
that served as a database for stored information. Furthermore, to ensure data
authenticity in the management station that fetches real-time data periodically
from equipment, network engineer would have to manually key-in static
information into CNAM when it was first launched. The SNMP would then pick
up on this stored static information and automatically began collecting real-time
data; this feature will be developed with the help of Model View Controller
(MVC) pattern that is a software pattern for implementing user interfaces. It
allows users to have interaction with the CNAM as well as input the related data.
The object oriented approach shall be used to implement SNMP and MIB which
represents system management information. Web Based Enterprise
Management (WBEM) is required in order to transfer protocol like SNMP, as well
as to enter the actual data manually for further authenticity with the real time
data. This study would hopefully encourage companies to try an interactive
solution for problem in managing their equipment in the data center.
N002
(1570020433)
Current Developments in LTE-ADVANCED: Radio Resource Management
Review
Mohd Khairy Ismail; Muhammad Syahrir Johal; Azmi Awang Md Isa
This paper provides a review of current technology components currently used
by OFDMA-based Long Term Evolution-Advanced (LTE-Advanced). LTE-
Advanced significantly enhanced the previous versions of LTE Release 8/9 to
support higher data rates and wider coverage resulting in best experience for
users. Some of the technologies discussed in this paper are enhanced Multiple
Input Multiple Output (MIMO), advanced repeaters or known as relaying
systems, coordinated multipoint transmission/reception and carrier aggregation
to expand the capability of the bandwidth spectrum. Among the issues
addressed in this paper are related to balancing of transmit power control for
both base stations and relay stations and also frequency spectrum allocation in
order to avoid any interference within a mobile cell. This also includes how to
manage different types of interferences such as intercell interference,
intersymbol and intercarrier interferences in the LTE-Advanced system.
N003
(1570021009)
The Impact of Mobility Models on Nodes Cooperation in Mobile Ad Hoc
Networks
Nor Effendy Othman; Rosilah Hassan; Samer Sami Hasan
In mobile ad hoc networks (MANETs), nodes usually have limited radio power
and transmit in a very limited area. Communication beyond a node’s radio range
requires multiple hops between nodes, which in turn, requires nodes in MANETs
to cooperate with each other in forwarding packets from a source to a
destination. Problems in cooperation arise in self-organizing MANETs where
selfish nodes exist. Selfish nodes are reluctant to forward other nodes’ packets in
order to save their limited resources for their own use. Thus selfish nodes can
prevent multi-hop communication in MANETs. Many previous studies have
worked on the problem of nodes cooperation and selfish nodes. However, it is
not clear how the choice of mobility models in simulation studies affects the
evaluation of the cooperation of nodes. While most studies employ a random
waypoint mobility model, it is questionable if this model reflects realistic
movement and thus may be cause for unrealistic results. In this paper, we
investigate the impact of mobility models on the cooperation problem. Our
results show that Random Waypoint Mobility and Steady-state Random
Waypoint Mobility models have a similar impact on nodes cooperation while Self
Similar Least Action Walk Mobility model differs significantly than the two
models.
N004
(1570025721)
Mobile Cloud Computing & Mobile Battery Augmentation Techniques: A
Survey
Mushtaq Ali; Jasni Mohamad Zain; Mohamad Fadli Zolkipli; Gran Badshah
Energy efficiency of mobile devices is paramount after the tremendous
advancement in technology while the explosion of smart mobile applications
such as, YouTube, Facebook, Twitters and Google maps makes Smart Internet
Devices (SIDs) the first choice of communication. On the other hand, multiple
sensors and wireless interfaces drain battery swiftly, thus reducing the
operational time of SIDs. Therefore, extending battery life problem has become
of crucial research importance, at hardware and software levels, both alike. This
paper firstly, makes contribution by reviewing different techniques at software
level used to enhance battery life of SIDs in particular Smartphones. At the end,
suggestions and opinions related to energy efficiency of SIDs are given, based
on the comparative studies.
Technical Session A2
Time
: 1400 – 1520
Venue
: Room 2
Session Chair : Dr. Bakhtiar Affendi Rosdi
ID (#)
S001
(1570025971)
Title, Authors & Abstract
Feature Extraction Using Spectral Centroid and Mel Frequency Cepstral
Coefficient for Quranic Accent Automatic Identification
Noraziahtulhidayu Kamarudin; S.A.R Al-Haddad; Abd Rauf Bin Hassan;
Shaiful Jahari Hashim; Mohammad Ali Nematollahi
This paper presents the process of Quranic Accent Automatic Identification.
Recent feature extraction technique that is used for Quranic verse rule
identification/Tajweed include Mel Frequency Cepstral Coefficients (MFCC)
which prone to additive noise and may reduce the classification result.
Therefore, to improve the performance of MFCC with addition of Spectral
Centroid features and is proposed for used in feature extraction of Quranic
accents. Through implementing the Spectral Centroid Feature, it complements in
improving the accuracy result of identifying the Quranic accents. The pattern
classification algorithm here used the dimensional reduced technique from
Probabilistic Principal Component Analysis (PPCA) on the features and Gaussian
Mixture Model, in purpose to model the effectiveness of both combination of
feature extraction. The accuracy of automatic identification for such Quranic
Accents are found increasing from 96.9% to 100% with the application of SCF.
S002
(1570027031)
Recognition & Counting Algorithm for Sub-Regional Objects in A
Handwritten Image Through Image Sets
Sriraman Kothuri; Komal Teja Mattupalli
In this paper a novel algorithm is proposed for the recognition of hulls in a hand
written images that might be irregular or digit or character shape. Identification
of objects and internal objects is quite difficult to extract, when the structure of
the image is having bulk of clusters. The estimation results are easily obtained
while going through identifying the sub-regional objects by using the SASK
algorithm. Focusing mainly to recognize the number of internal objects exist in a
given image, so as it is shadow-free and error- free. The hard clustering and
density clustering process of obtained image rough set is used to recognize the
differentiated internal objects, if any. In order to find out the internal hull regions
it involves three steps Preprocessing, Layered Outline Extraction and finally,
apply the Hull Detection system. By detecting the sub-regional hulls it can
increase the machine learning capability in detection of characters and it can
also be extend in order to get the hull recognition even in irregular shape
objects like wise black holes in the space exploration with their intensities.
Layered hulls are those having the structured layers inside while it is useful in the
Military Services and Traffic to identify the number of vehicles or persons. This
proposed SASK algorithm is helpful in making of that kind of identifying the
regions and can useful in undergo for the decision process (to clear the traffic, to
identify the number of persons in the opponent's during the war).
S003
(1570027093)
Protective Covering of Images by Using Both Cryptography and
Steganography
Lavanya Kumari Kommu; Sriraman Kothuri
In this paper, we proposed a new method of protective covering of images by
using combinations of both cryptography and steganography [1] with
segmentation of secret image. Cryptography is the process of scrambles the
existing information where as in steganography, the information is embedded in
the some other information. Firstly the secret image is divided into several parts
and encrypts those parts separately with different encryption algorithms. After
that combined all parts as a single image and embed that combined image in to
the cover image. Finally that stego image is compressed to the size of the cover
image and transmits it.
S004
(1570031045)
A Review on Pedestrian Detection Techniques Based on Histogram of
Oriented Gradient Feature
Chi Qin Lai; Soo Siang Teoh
Locally normalized Histogram of Oriented Gradient (HOG) algorithm originally
proposed by Dalal & Triggs presents excellent results for pedestrian detection.
However, as the demand of accuracy and speed in real-time application
increase, the detection speed and robustness of this method is becoming
insufficient. . Over the years, improvements have been proposed by different
researchers in order to meet the requirement of the robustness and processing
speed. This includes the improvement in the ways HOG feature is extracted,
combination of HOG feature with other image features and using part based
detection method. This paper reviews the current advancement in HOG features
for human detection.
Technical Session A3
Time
: 1400 – 1520
Venue
: Room 3
Session Chair : Dr. Asrulnizam Abd. Manaf
ID (#)
R001
(1570024887)
Title, Authors & Abstract
Rain Attenuation At 40 GHz for Terrestrial Link in Malaysia
Azlinda Tee Md Azlan Tee; J.S. Mandeep; Amran Naemat;
Khaidir Khalil; Azah Syafiah Mohd Marzuki; Surati Selamat
This paper presents the study on the rain attenuation at 40 GHz via terrestrial
link in Malaysia. Malaysia is situated in the tropical region and known to
experience a very heavy rainfall annually. Consequently this heavy rainfall has
high impact on the propagating signals. In this study, rainfall data from
Cyberjaya were collected using rain gauge, and then they were analyzed to get
the rainfall rate in term of probability of the time exceedance. Five different
prediction models were used to estimate the rain attenuation values; ITU-R 53015 models, ITU-R 530-13 models, revised Moupfouma's model, revised Silva
Mello's model and Lin's model. Among these five models, ITU-R 530-15 model
R002
gave the closest estimated value to the measured rain attenuation at 38 GHz. By
applying this model with the acquired rainfall rate of 130 mm/h, it gave the
estimated attenuation value of 22.64 dB within 0.3 km propagating path at
frequency of 40 GHz.
Corporate Series Feed Circular Spiral Antenna Array for UHF Applications
Kang Chia Chao; Mohd. Fadzil bin Ain
(1570029021)
R003
(1570031253)
Circular Spiral with twelve element corporate-series feed antenna array operates
at the center frequency of 956MHz is designed and analyzed. Each of the single
circular spiral inductor is connected after one another. The purpose of design
the circular spiral corporate-series feed antenna array is to achieve high gain
antenna and subsequently harvesting more RF energy. The quarter wave
transformer method is used to design the corporate feed line with the same
equal distributed power in each arm. The entire structure was investigated using
numerical solver such as finite integration technique (FIT) method. With this
setup, the results show that 19.8dB gain for antenna array can be achieved at
frequency 956MHz. Therefore, the results obtained are a very attractive new
method design solution for application in the UHF band in future. A good
agreement between simulation and measurement results is successfully
confirmed.
60-min to 1-min Rainfall Rate Conversion Using East Malaysia Data
Surati Selamat; Azah Syafiah Mohd Marzuki;
Azlinda Tee Md Azlan Tee; Khaidir Khalil; Amran Naemat
Wireless communication systems operating at above 10 GHz are exposed to rain
attenuation. Therefore, countries with high precipitation rate such as Malaysia,
require careful planning before establishing a reliable wireless link. Signal
attenuation due to rain can be measured or estimated, but it requires the
knowledge of local 1-minute rainfall rate statistic. But for most part of the world,
the rainfall data usually comes with higher integration time, such as 60-minute.
As a result, the method to convert rainfall rate with higher integration time to 1minute rainfall rate distribution is essential. In this study, hydrological data from
five areas in East Malaysia is translated to 1-min and 60-min rainfall rate
distribution. Then, five conversion models were used to convert 60-min rainfall
rate to 1- min rainfall rate. From observation and conversion error analysis, this
study found that Segal method performed the best when it is compared to other
four conversion methods.
R004
(1570031315)
Electronically Steerable Antenna for WLAN Application
N. A. Salleh; E. Mohd; N. Abdullah
In wireless communication systems, interference becomes a major problem in
limiting the quality of the transmitted and received signals. A common problem
in wireless communications is to eliminate the interference signal that is mixed
with the original signal. Thus, adaptive beamforming is proposed to eliminate
the interference signal. This paper presents an adaptive antenna using a slotted
patch antenna for WLANs operated at 2.4 GHz. A reactively steerable antenna
concept has been applied. A downhill simplex algorithm is used to maximize the
cost function. The radiation pattern of the antenna is controlled by the reactance
value connected to each port. From numerical simulation, null is performed for
the incoming interference.
Technical Session A4
Time
: 1400 – 1520
Venue
: Room 4
Session Chair : Dr. Zuraini Dahari
ID (#)
C001
(1570024851)
Title, Authors & Abstract
Optimizing Visual Sensor Parameters for Total Coverage Maximization
Altahir A. Altahir; Vijanth S. Asirvadam; Nor Hisham B Hamid; Patrick Sebastian
Modeling the sensor coverage is evidently indispensable to meet the
requirements of a variety of visual sensor related applications. It is critical to be
able to compute the camera coverage and to plan the system accordingly.
However, optimizing the visual sensor parameters directly impacts the total
performance in visual surveillance applications. This work highlights the
theoretical bases of camera modeling. Moreover, the work focuses on
calculating the visual sensor coverage via implementing a different set of
parameter to maximize the total coverage. A complex scenario is used in the
simulation and the results are presented in a comparative manner. The proposed
method is capable of computing the camera coverage area in highly occluded
scenes.
C002
(1570025363)
Feature Extraction for Co-Occurrence-Based Cosine Similarity Score of Text
Documents
Ammar Ismael Kadhim; Lubab Salman; Yu-N Cheah; Nurul Hashimah Ahamed
A major challenge in topic classification (TC) is the high dimensionality of the
feature space. Therefore, feature extraction (FE) plays a vital role in topic
classification in particular and text mining in general. FE based on cosine
similarity score is commonly used to reduce the dimensionality of datasets with
tens or hundreds of thousands of features, which can be impossible to process
further. In this study, TF-IDF term weighting is used to extract features. Selecting
relevant features and determining how to encode them for a learning machine
method have a vast impact on the learning machine methods ability to extract a
good model. Two different weighting methods (TF-IDF and TF-IDF Global) were
used and tested on the Reuters-21578 text categorization test collection. The
obtained results emerged a good candidate for enhancing the performance of
English topics FE. Simulation results the Reuters-21578 text categorization show
the superiority of the proposed algorithm.
C003
(1570025691)
Computational Intelligence Approach in Optimization of a
Nanotechnology Process
M. S. Norlina; P. Mazidah; N. D. Md. Sin; M. Rusop
Computational intelligence has been widely adapted in various fields and has
been demonstrated excellent performances in solving optimization problems.
This study is proposing the implementation of gravitational search algorithm
(GSA) in the parameter optimization of RF magnetron sputtering process. RF
magnetron sputtering is a nanotechnology process which involves the
deposition of nano-scaled atoms of a target material. The current practice of
searching for the optimized parameters in the magnetron sputtering process is
based on the trial and error method. However, this conventional method has
been reported to be time consuming and costly. GSA is proposed to identify the
most optimized parameter combination for producing the desirable zinc oxide
(ZnO) thin film electrical property. GSA is a population based algorithm which is
based on the Newton's law of gravity and the law of motion. This study is
concentrating on three magnetron sputtering process parameters, which are RF
power, argon and oxygen flow rates. These three process parameters are
among the sputtering process parameters that have been extensively studied by
the researchers for the fabrication of the nanostructured ZnO thin film. The
result from GSA optimization had showed that the algorithm was able to identify
the most optimized parameter combination from the set of parameters. Based
on the GSA acceptable performance, it is expected that this technique could
serve as an improvement from the traditional practice in the fabrication process.
C004
(1570027853)
Partially Adaptive Look-Ahead Routing for Low Latency Network-on-Chip
Nadera Najib; Alireza Monemi; Muhammad Nadzir Marsono
Adaptive routing algorithms offer the ability to avoid congestion by supporting
multiple paths between a source and destination. However, supporting adaptive
routing for low latency routers is a challenge due to the computation of routing
algorithm in one router in advanced (i.e) look-ahead routing). This paper
presents an RTL architecture for adding partially adaptive look-ahead routing
algorithm to a recently proposed low latency, virtual channel wormhole
Network-on-Chip (NoC) router. In our proposed design each router precomputes the preferred output ports based on its local congestion and transfers
the preferred output ports to the neighboring routers. These preferred output
ports are used in the look-ahead routing to select the optimal output port for the
packet. We compare our proposed partially adaptive routing architecture with
the reference design using look-ahead XY routing algorithm under matrixtranspose traffic and obtained 10% improvement at maximum injection ratio.
Our proposed routing algorithm has negligible influence in area overhead (<2%)
while has no influence on maximum operating frequency.
Technical Session B1
Time
: 1540 – 1700
Venue
: Room 1
Session Chair : Dr. Nor Muzlifah Mahyuddin
ID (#)
N005
(1570024703)
Title, Authors & Abstract
On the Distribution of the Length of Bit Errors in IP Packet Headers
Liawas Barukang; Garik Markarian
This paper concerns itself with the distribution of the length of bit errors in IP
packet header. MAC frames (encapsulated the IP packets) are transmitted
through an AWGN channel and modulated with BPSK. At the receiver, the
numbers of bit errors in the header in every IP packets are recorded. The
probability of each length of bit errors is computed and length of error
histogram plotted. The result shows that in an un-coded channel, the average
length of error having the highest probability to occur is about 21-bits, whereas
for coded channel, it was about 60-bits. However, the probability of having 21bits length bit errors in un-coded channel is significantly higher than the
probability of having the 60-bits length bit errors in coded channel. Furthermore,
bit errors are found in packet header of packets transmitted through an uncoded channel when SNR is between -2dB to +10dB, whereas in coded channel,
there is no more bit errors found in the packet header when SNR is from +6dB
onward. This result is beneficial in deciding on an optimal numbers of
redundancy bits needed to protect the IP packet header.
N006
(1570024813)
Effects of Hand on EM Absorption of Internal Handset Antenna
M. I. Hossain; M. R. I. Faruque; M. T. Islam; T. Alam
An analysis of hand impact on internal handset antenna electromagnetic (EM)
absorption is presented in this paper. An E-shaped planar inverted-F antenna
(PIFA) is designed for handset antenna. The handset is placed in talk mode in the
closed vicinity of human head and hand phantom. The specific absorption rate
(SAR) in the human head and total absorbed power by the user are utilized to
evaluate EM absorption. The analysis was performed in both cheek and tilt
positions of talk mode. The main part of the investigation is based on the finitedifference time-domain (FDTD) method of CST microwave studio. The results
indicate that the SAR values are decreased and total absorbed power by user
increased significantly due to inclusion of user's hand.
N007
(1570026069)
Printed Microstrip- Fed Circular Patch Antenna for Wireless Communication
M. I. Hossain; M. R. I. Faruque; M. T. Islam; T. Alam
In this paper, a new wideband Circular monopole antenna is proposed for
Wireless communication. Commercially available software Computer Simulation
Technology (CST) microwave studio based on finite difference time domain
(FDTD) was adopted in this investigation. A wide frequency bandwidth of 3.25
GHz (1.65 GHz to 4.9 GHz.) has obtained in measurement. The operating
frequencies of the proposed antenna are GSM-1800, GSM-1900, UMTS,
Bluetooth (2400-2800) MHz, WLAN (2400-2485) MHz, WiMAX (2500-2690) MHz
and WiMAX (3400-3600) MHz. The antenna has been printed on FR-4 (lossy)
Substrate with relative Permittivity of 4.6 and thickness of 1.6 mm. The
computational results has been validated the measured one. In addition, the
electromagnetic absorption analysis has been investigated for the proposed
antenna.
N008
(1570022439)
A Review of Simulation Framework for Wireless Sensor Networks
Localization
Noorfarha Mohd Ngabas; Jiwa Abdullah
Wireless sensor networks have the capability to deliver the environmental data
to the user. Among the significant data is the location of the node either in static
or mobile. A number of network simulators were extensively reviewed
specifically for the development of wireless sensor networks protocol. However,
there is little work done in assessing the framework for localization simulation.
This paper addresses the lack of the previous surveys by giving the guidelines for
localization developer to select the suitable network simulator or programming
language. It includes a comparative description on importance features in
evaluating the localization algorithm. In addition, it discusses the general
performance evaluation metric use for localization. Finally, it list several open
issues which help in developing and analyzing the localization algorithm.
Technical Session B2
Time
: 1540 – 1720
Venue
: Room 2
Session Chair : Dr. Norliza Mohd. Noor
ID (#)
S005
(1570031723)
Title, Authors & Abstract
Cardioid Graph Based ECG Biometric Recognition Incorporating
Physiological Variability
Fatema-tuz-Zohra Iqbal; Khairul Azami Sidek
This paper investigates ECG signal in different physiological conditions to
identify different individuals. Data was acquired from 30 subjects, where each
subject performed six types of physical activities namely walking, going upstairs,
going downstairs, natural gait, lying with position changed and resting while
watching TV. Then from the signals of these physiological conditions, specific
features exclusive to each subject was extracted employing the Cardioid graph
method. In this model, features were extracted solely from the graph derived
using QRS complexes. Subjects were recognized with Multilayer Perceptron.
Results were obtained through two approaches. In the former procedure,
classification was performed on the whole dataset consisting of both training
and testing set, which produced 95.3% of correctly classified instances. In the
later approach the training and testing set was predefined where correctly
classified instances were 93.9%. These results confirm that subject identification
at different physiological conditions with Cardioid graph based technique
produces better classification rates than previous study using only QRS complex.
S006
(1570037299)
A Selective Algorithm for the Reduction of Irregular Noise in Speech
Communication
Roshahliza M. Ramli; Ali O. Abid Noor; Salina Abdul Samad
The properties of noise signals can be the main problem associated with noise
cancellation systems. In order to overcome this problem, high complexity
algorithms have to be used in order to reduce the noise embedded in the useful
signals such as speech. This method can be impractical, especially in real-time
applications where the computational power is a crucial issue. Adaptive filters
give applicable solutions, but most literature proposed a single, yet complex
algorithm to removing the noise. This paper proposes an alternative approach to
eliminate background noise in corrupted speech signals. The method is achieved
by letting the system assigns an appropriate algorithm according to the
characteristics of the noise. The criterion used here is based on the calculation of
eigenvalue spread in the autocorrelation matrix of the input signal. In addition,
an algorithm derived from set-membership filtering is also used among the
selected algorithms. This approach showed its potential capability in eliminating
different types of environmental noise from corrupted speech signals. The
technique presented here exhibited fast convergence speed and improvement
in signal-to-noise ratio compared with other single adaptive algorithms.
S007
(1570017773)
Detecting Brain Tumor in Magnetic Resonance Images Using Hidden
Markov Random Fields and Threshold Techniques
Hayder Saad Abdulbaqi; Iskandar Shahrim Bin Mustafa
Loay Kadom Abood; Mohd Zubir Mat Jafri; Ahmad Fairuz Omar
Brain tumors are created by abnormal and uncontrolled cell division in the brain
itself. Manual segmentation of brain tumors from MRI is a crucial and time
consuming task. Accurate detection of size and location of brain tumor plays a
vital role in the successful diagnosis and treatment of tumors. So the detection of
brain tumor needs to be fast and accurate. Brain tumor detection is one of the
challenging tasks in medical image processing. This paper concerns presenting
an approach which will be useful for improved detection of brain tumor using
Hidden Markov Random Fields (HMRF) and Threshold method. The proposed
method has been developed in this research in order to construct hybrid
method. The aim of this paper is to introduce a scheme for tumor detection in
Magnetic Resonance Imaging (MRI) images using (HMRF) and Threshold
techniques. These methods have been applied on 3 different patient data sets.
They are capable to regularize their soothing effect on the final segment of brain
tumor homogeneous tissue regions, whilst edges between different tissue
components are better preserved.
S008
(1570025667)
Identification of Phoneme and Its Distribution of Malay Language Derived
From Friday Sermon Transcripts
Mohd Ibrahim Shapiai; Mokhtar Harun; Muhammad ‘Aasim Asyafi’ie; Puspa Inayat Khalid
Lack of text data is one of the main issues encountered by researchers on Malay
speech. This text data is in the form of text corpora that is essential to provide
empirical data for researchers in the field of linguistics, and are useful to
construct word lists for speech intelligibility test, speech analysis across genders
and automatic speech recognition. The text corpora also need to mimic the
natural phoneme of the language it represents. To accomplish this, we need to
know the phonetic distribution of the language. So far, there are no published
results on the phonetic distribution of a kind Malay language. The purpose of
this research is to identify phoneme distribution for the Malay language based
on the transcripts obtained from fifty two Friday sermons. The Friday sermon
transcripts were obtained through the official government website and then
standardized by removing images and foreign letters; expanding acronyms and
short forms; converting numbers and symbols to appropriate Malay words. The
transcripts were then phonetically transcribed by first identifying the language
rules and wrote a program based on those rules. The program was written using
Personal Home Page (PHP) and the data were then stored into MySQL
(Sequential Query Language). The data were then retrieved and compared to
the Malay words used in news broadcast. In conclusion, the Malay used in Friday
sermon and news broadcast differs in the usage of the phonemes /a/, /e/, /o/,
/d/, /p/, /tʃ/, /n/, /l/, /h/ and /r/.
S009
(1570035809)
Electrocardiographic (ECG) and Electromyographic (EMG) Signals Fusion
for Physiological Device in Rehab Applicaton
Nor Aziyatul Izni Mohd Rosli; Mohd Azizi Abdul Rahman; Saiful Amri Mazlan; Hairi Zamzuri
In this paper, a preliminary work on improving fitness in the post-stroke rehab
application is investigated. For this purpose, a fusion of the Electrocardiographic
(ECG) and Electromyographic (EMG) biosignals is proposed to produce a
significant control signal and to achieve a biosignals multimodal fusion system.
In this work, the mathematical approach such as the Bayesian network will be
applied for combining the ECG and EMG biosignals. Furthermore, the significant
fused elements can be applied to control to manipulate the control of
physiological device (PDs) for emulating classic rehabilitation exercise (e.g.,
cycling). Consequently, the proposed method for a multimodal fusion of muscle
contraction for heart and lower limbs shall give improvement on monitoring the
rehabilitation progress with better accuracy for signals fusion.
Technical Session B3
Time
: 1540 – 1720
Venue
: Room 3
Session Chair : Dr. Badrul Hisham Ahmad
ID (#)
Title, Authors & Abstract
R005
Reconfigurable Multiband Bandpass Filters Using Short Bridges Resembling
MEMS or Pin Diodes
(1570031345)
Zeshan Ali; Zuhair M. Hejaz
A simple technique is used to design a new compact reconfigurable multiband
bandpass filter (BPF). The propose technique is very feasible for reconfigurable
operation. The concept is experimentally validated by placing solder bridges
across filter structure at the appropriate positions. The proposed structure has
very minor effect on the performance of the original multiband filter, due to
minor losses of the short bridges. The responses achieved, range from a single
UWB BPF to triple-band BPF. Excellent agreement of measured results with the
simulations is observed.
M001
(1570020317)
N-job, M-Macine Lot Streaming Problem with Learning Effects
Navid Mortezaei; Norzima Binti Zulkifli
The abilities of workers for performing same or similar tasks can be improved by
repeating them. This phenomenon is recognized as learning effects. Many
researches performed on the effects of learning in scheduling problems.
However, there is not any study about lot streaming problem with learning
considerations. In this study, we develop mixed-integer mathematical models for
multiple products and multiple machines lot streaming problem with learning
considerations. With the proposed model formulation, five goals of problem,
namely determining the sequence among the sublots, optimal number of
sublots for each lot, the size of the each lot, inventory levels and the size of the
individual sublots, are solved simultaneously. Proposed models are tested by
several numerical examples and surprising results are presented.
L001
(1570025925)
Refractive Index Modification of SU-8 Polymer Based Waveguide Via
Fabrication Parameters
Susan Kavita Martham; Khor Kang Nan; Mukhzeer Mohamad Shahimin
This paper presents refractive index modification of SU-8 based waveguide via
only varied fabrication parameters. The current biosensor market needs easy
manufacturing in large quantities, low cost, small in size, easy to be used and fast
response time, thus, an appropriate optical waveguide material needed to be
chosen. Hence, the optical properties of SU-8 must be well understood in order
to design waveguide with single-mode and strong evanescent field to realize
sensitive biosensor. It is known that process parameters such as spin speed,
exposure dosage and curing temperature affect the polymerization which in
turn affect the optical properties especially refractive index. Due to this reason, it
is the aim of this paper to investigate the effects of spin speed, exposure dosage
and curing temperature on the refractive index of SU-8. This paper also aims to
improve the process recipe of SU-8 for waveguide fabrication which requires
high resolution and steep sidewall with minimum defect.
L002
(1570021467)
S-Shaped S-band Multi-Wavelength Brillouin Raman Fiber Laser Employing
Raman Amplifier
Erny Shazfiza Rashid; N. A. M. Ahmad Hambali; M. A. M. Azidin; M. Shakirin Abu Hurera;
A. Zakiah Malek; N. Roshidah; M. H. A. Wahid; Siti S. Mat Isa
This paper is presents the simulation demonstrated of the S-shape multiwavelength Brillouin-Raman fiber laser utilizing Raman amplifier in the cavity.
Raman amplifier- average power model is used for amplification. This
configuration is operated in the S-band wavelength region with tuning range
between 1460 nm to 1530 nm. A laser source with a maximum power of 4 dBm
at 1500 nm wavelength act as the Brillouin pump, while 1425 nm of wavelength
with output power of 90 mW act as the Raman pump. As a results, at 10 km of
single mode fiber and output coupling ratio of 90%, 7 outputs Brillouin Stokes
signals is obtained with maximum output power of 33.88 dBm. Meanwhile,
maximum gain values at 38. 07 dBm is recoded at 90 mW of injected Raman
pump power. It is notable that the Raman gain broadening is occurs around
1500 nm to 1530 nm in S-band wavelength region.
L003
(1570021495)
Linear Cavity Brillouin Fiber Laser Exploit Reflectivity Bandwidth From FBG
A. Zakiah Malek; N. A. M. Ahmad Hambali; M. H. A. Wahid; M. A. M. Azidin; N. Roshidah
In this report, we propose a simple technique of the single wavelength linearcavity Brillouin fiber laser by using minimal components. The Brillouin gain
medium is provided by 11-km long of Single Mode Fiber. The enhancement of
experiment is done by using Fiber Bragg Grating and without Fiber Bragg
Grating. Reflectivity bandwidth from Fiber Bragg Grating is exploited to improve
the performance of laser system. With the involvement of cavity feedback and
wavelength selectivity, Fiber Bragg Grating directly influenced the signal power.
The maximum output Brillouin power was found to be 17.25 dBm at 1550 nm
by utilizing Fiber Bragg Grating while 16.33 dBm were reported without utilizing
Fiber Bragg Grating. The optical-signal-to-noise-ratio of 68.097 dB has been
obtained from the laser system. A stable high optical-signal-to-noise-ratio and
narrow linewidth linear cavity single-wavelength Brillouin fiber laser is done by
free running of self-lasing cavity mode within the C-band wavelength region.
Technical Session B4
Time
: 1540 – 1700
Venue
: Room 4
Session Chair : Dr. Rosmiwati Mohd. Mokhtar
ID (#)
C005
(1570025245)
Title, Authors & Abstract
A Survey of Fault-Tolerant Processor Based on Error Correction Code
Mohd Hafiz Sulaiman; Sani Irwan Md Salim; Anuar Jaafar; Masrullizam Mat Ibrahim
Fault detection and correction algorithms has been widely adopted in the
various data communication system with view to protect the system from
crashing due to hard and soft errors. As the system becomes more complex with
the reduction of transistor size, fault detection and correction schemes are not
limited to data transfer process. Internal components of the system’s processor
are also susceptible to soft errors that potentially would halt the system
operation. This paper is focused on the current implementation of error
correction code (ECC) on internal processor architecture. Various ECC algorithms
are discussed from theory to its operation. Several researches that implemented
ECC in processor architecture are also presented in order to demonstrate the
variety of ECC execution to the processor architecture. A custom soft-core
processor called UTEMRISC is presented as a study case to execute an ECC
algorithm in low-end soft-core processor architecture on FPGA platform. For
future work, the FT design will be embedded in UTeMRISC03 processor with
further analysis of the fault assessment on each of the processor’s components.
C006
(1570026051)
Designing and Implementation of an Application Based Electrical Circuit for
Smart Home Application
A. A. Rimon; B. B. Pathik; R. Arefin; M. S. Rahman; T. Masud; N. Datta
This article describes a project in which an electrical circuit is designed by which
an user can turn on/off any electrical appliances i.e. fans, lights and can
lock/unlock windows, doors etc. of his/her house or office through sending SMS
using a custom built android application to a specific phone number connected
to the microcontroller. In this system an android application is used to send
instruction through SMS. At the receiving end, a GSM module receives the SMS
and sends the particular hexadecimal codes to a microcontroller. Then the
microcontroller reads the code and sends the signals to relays for performing
actions according to the specified logic. For designing the system Proteus, a
virtual system modeling and circuit simulation application, was used as
simulation software. The code for microcontroller was written in mikroC PRO
and burnt with PICkit 2 softwares. This system ensures smart safeguarding as
well as efficient use of energy for its user’s office and living place.
A001
(1570025133)
Development of a Laboratory-scaled Mass Rapid Transit System
Yoong Sen Chew; Rosmiwati Mohd-Mokhtar
Mass rapid transit (MRT) technology had gone through a very comprehensive
and intensive evolution in recent decades. Those developments and innovations
occurred in both technological and engineering aspects. In this project, a
laboratory-scaled mass rapid transit system based on Programmable Logic
Controller (PLC) is built. The motivation of this project is to design and develop a
laboratory scaled mass rapid transit system that can demonstrate the operation
of a real MRT system to the public. Omron CJ2M series PLC, Shihlin Electric
Human-machine-interface EU200 series, Lego 7938 City Train Set and Arduino
microcontroller board are used to develop the system. Several NPN sensors are
implemented in the system to perform the automated operation of a real MRT
system. Other devices such as servo motor, light-emitting diode and DC motor
are used to support the primary function of the rail system. In addition,
simulation software in controlling the operation of an MRT system is also
developed. The outcome has significantly contributed towards in depth
knowledge and practical understanding of mechatronic system development
and implementation.
A002
(1570024519)
Modeling of Activated Sludge Process Using Various Nonlinear Technique:
A Comparison Study
Zakariah Yusuf; Norhaliza Abdul Wahab; Shafishuhaza Sahlan
This paper presents a comparison study between radial basis function (RBF)
neural network, feed forward multilayer perceptron (MLP) neural network and
adaptive neuro-fuzzy (ANFIS) technique to model the activated sludge process
(ASP). All of these techniques are based on the nonlinear autoregressive with
eXogenous input (NARX) structure. The ASP inputs and outputs data are
generated from activated sludge model 1 (ASM1). This work will cover the
dissolved oxygen (DO), substrate and biomass modeling. The performances of
the model are evaluated based on R2, mean square error (MSE) and root mean
square error RMSE. The simulation result shows that ANFIS with NARX structure
given a better performance compared with the other modeling techniques.
th
Wednesday, 17 December 2014
Technical Session C1
Time
: 1050 - 1250
Venue
: Room 1
Session Chair : Dr. Zuraini Dahari
ID (#)
P001
(1570008971)
Title, Authors & Abstract
Design Optimization of Single-Phase Outer-Rotor Hybrid Excitation Flux
Switching Motor for Electric Vehicles
Mohamed Mubin Aizat Mazlan; Md Zarafi Ahmad;
Syed Muhammad Naufal Syed Othman; Erwan Sulaiman
Nowadays, in-wheel motors applied in pure electric vehicles (EVs) propulsion
systems have attracted great attention in advance research and development. Inwheel direct drive eliminates the mechanical transmission, differential gears and
drive belts. Thus, in-wheel direct drive provides quick torque response, higher
efficiency, weight reduction, and increased vehicle space. As one of alternative, a
new design of hybrid excitation flux switching motor (ORHEFSM) for in-wheel
drive EV is proposed. In this paper, the optimization design of single-phase 8S-4P
outer rotor HEFSM is analysed. Open and close circuit of initial and final design is
comparedbased on 2-D finite element analysis (FEA). The optimized design
motor has produced higher torque which is 138.18Nm with 22.2%
improvement compared to initial design motor which is 107.5Nm and has
achieved the target value which 111Nm. The initial maximum power achieved
was 17.02kW, while for the improved design motor, it has increased to 41.81kW,
since the target maximum power is 41kW. The design optimization has been
made on the initial design machine shows that there is great enhancement on
torque and power
P002
(1570008973)
Performances Comparison of 12S-14P Field Excitation Flux Switching Motor
with Overlap and Non-overlap Windings for Hybrid Electric Vehicles
Zhafir Aizat Husin; Erwan Sulaiman; Faisal Khan; Mohd Fairoz Omar
Hybrid electric vehicles (HEVs), using combination of an internal combustion
engine (ICE) and one or more electric motors, are widely considered as the most
promising clean vehicles. The only machine that already installed for HEVs is
interior permanent magnet synchronous machine (IPMSM) where it has
developed to enhance power density of the machine. Despite of fine operated
and superior performances, this machine do not miss approached by deficiency
for instance IPMSM now have complex form and configuration that give
difficulty to undertake the process of optimization. Moreover, the use of PM will
result in a constant state of flux and cannot be controlled as well a burden
because of expensive rare earth magnet prices. Therefore, a new candidate of
field excitation flux switching machine (FEFSM), in which the uses of PM are
totally excluded with rugged rotor structure suitable for high-speed operation
and the ability to keep high torque and power density is proposed and
examined in this paper. Under some design specifications, design principles and
performances of 12S-14P FEFSMs with overlap and non-overlap FEC and
armature coil windings are presented. The profile of flux linkage, induced
voltage, cogging torque, torque and power characteristics are observed based
on 2D finite element analysis (FEA).
P003
(1570025655)
P004
(1570025689)
Broken Rotor Bar Detection of Induction Machine Using Wavelet Packet
Coefficient-related Features
Sahar Zolfaghari; Samsul Bahari Mohd Noor; Mohammad Hamiruce Marhaban;
Norman Mariun; Mohammad Rezazadeh Mehrjou; Mahdi Karami
Fault diagnosis of induction machine can be achieved through wavelet packet
analysis to acquire information about its stability and mutability. This paper
presents an experimental evaluation of applying wavelet packet transform based
on the sideband components, (1 ± 2ks)fs , for broken rotor fault detection in
induction machines. The wavelet-based method decomposes stator current
signal into effective wavelet coefficients. It is shown that the root mean square
(RMS) value of wavelet packet coefficients in special frequency bands collectively
establishes a feature index. Once the broken rotor bar occurs, this index value
increases to distinguish healthy and faulty mode of induction motor as well as
fault severity. Additionally, we investigate the left sideband around the
fundamental frequency (50Hz), (1 – 2s)fs, which specifically represents the stator
current spectrum of the machine when a rotor bar breakage takes place. An
induction motor with one and two bar breakage at 35%, 50% and 80% of full
load are investigated. The experimental tests indicate good reliability of different
frequency resolution for same frequency component.
Performance Analysis of Line-Start Permanent Magnet Synchronous Motor
in Presence of Rotor Fault
Mohammad Rezazadeh Mehrjou; Norman Mariun; Mahdi Karami;
Norhisam Misron; Mohd Amran Mohd Radzi
Electrical Motors are widely employed in both industrial and domestic fields. Line
start-permanent magnet motor is one of the modern high efficiency motor
introduced. During working of electrical motors, various faults, like stator faults,
rotor faults, bearing's faults, occur that lead to malfunction of the motor. Among
these faults, rotor fault, broken bar, is important in the motors with squirrel cage
rotor. This paper deal with the finite element method of the electromagnetic
field associated with this motor to find the performance of it with presence of
rotor faults.
P005
(1570026353)
Design and Implementation of Intelligent Controller Based Boost Converter
for Electric Vehicle Applications
Nithya Venkatesan; Siddharth Mehta; Harsh Mittal
In recent years the availability of petroleum resources has decreased which
paves the way to Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs). In
order to achieve a better drive range and improved performance of the motor,
control techniques are necessary for the DC to DC power converters which are
employed in these vehicles. Designing of linear controllers for these converters
like Proportional Integral (PI) is pretty straightforward which requires
mathematical modeling of the system , Whereas the designing of non-linear
controllers like Fuzzy Logic Controller (FLC) is completely trial and error and does
not require the mathematical modeling of the system. Though the FLC is more
robust, has a better steady state response, and is able to achieve faster transient
response as compared to PI controllers .The above approach is implemented and
tested to a simple DC to DC converter and the hardware implementation of the
converter is done and discussed in this paper.
P006
(1570029067)
MATLAB-Adruino as a Low Cost Microcontroller for 3 Phase Inverter
Shamsul Aizam Zulkifli; Mohd Najib Hussin; Abdul Salam Saad
This paper presents the performance of the Arduino microcontroller board in
response to an advanced control strategy for a motor control application. Two
set of control theories have been used and combined as known as the
Proportional Integration (PI) - Repetitive controller. This controller has been
designed in MATLAB-Simulink environment and then downloaded to the
Arduino for testing. The test set consists of 3 phase inverter, filter, induction
machine (IM) and a set of current controller. The feedback current from the IM
will be the control parameter for the controller and the Arduino in order to
generate the pulse width modulation (PWM) pattern. Different PWM pattern is
generated when the feedback current is changing due to the changing of the
load.
Technical Session C2
Time
: 1050 - 1250
Venue
: Room 2
Session Chair : Dr. Md. Pauzi Abdullah
ID (#)
P007
Title, Authors & Abstract
A Distribution Network Reconfiguration Based on PSO: Considering DGs
Sizing and Allocation Evaluation for Voltage Profile Improvement
(1570029985)
M. F. Sulaima; M. N. M. Nasir; M. Y. Hassan; N. M. Shahrin; Z. H. Bohari
The optimized network reconfiguration and Distributed Generations (DG) sizing
with allocation instantaneously via Particle Swarm Optimization (PSO) proposed
a new way of allocation DG based on low voltage profile. This method consists
of three steps. It started with categorized the switching sequences for radial
network configuration while observe the P losses and the profile of voltage
without DG. The second step is reconfiguration feeder for reduce losses via DGs
allocation based on substations geographical location. The final step is sizing
and allocation DGs at each bus with low voltage profile produced from the first
step, used to mend the voltage profile and minimize the Plosses also compared
the result with the geographical based allocation results. The objective of this
study is to mend the voltage profile while decreasing the Plosses by using
optimization technique considering network reconfiguration, DGs Sizing and
allocation concurrently. Four cases are compared which is case 1 is the initial
case and taken as a reference. All three stages are tested on standards IEEE 33
bus system by using Particle Swarm Optimization (PSO) technique in MATLAB
software. This method proved that improvement of Plosses and voltage profile
has been made by change of the switching topology with DGs sizing and
allocation technique respectively.
P008
(1570033161)
Demand Control & Monitoring System as the Potential of Energy Saving
Amir Rabani Abd Halim; Syafrudin Masri
The electricity demand for supply system in develop countries nowadays rising
significantly. According to the APEC Energy Demand and Supply Outlook – 5th
Edition, the electricity demand for Malaysia is expected to increase significantly
from 96.3 TW/h in 2009 to 206 TW/h in 2035. For better control of the electricity
demand, Malaysia must aim to encourage efficient usage of energy through
available initiatives. The intelligent solution to overcome this crisis is Demand
Side Management (DSM) strategies such as maximum demand control,
increasing the efficiency and etc. This paper implements a strategy of DSM
measures by reducing energy demand. The research will focus on optimal
utilization of available electricity during peak and off peak hours to maintain
consumer loads indirectly by manipulate the supply resource. With reduction in
consumer load during peak hours, there is an opportunity to improve the load
curve and load factor along with saving in energy bill due to the lowering MD
charges (penalties) during peak hours.
P009
(1570035799)
Inter-area Oscillation Damping Techniques in Wind Power Plants: A Review
Dalia M. Eltigani; Syafrudin Masri
The deep penetration of wind energy in the modern power systems introduced
many challenges due to the variability and limited predictability of wind. Wind
power plants can provide ancillary services to the grid such as voltage support
and reactive power compensation. The inter-area oscillation is one of the
phenomena that adversely affect power transmission through weak tie-lines.
Since the wind power plants are connected in remote grid areas, they can
effectively contribute to damp these low-frequency oscillations. This paper
investigates the techniques used in wind power plants to support grid stability
by increasing the damping of the inter-area oscillations.
P010
The Performance of a Solar PV System Using Supercapacitor and Varying
Loads
M. I. Fahmi; Rajkumar R; Arelhi R; Rajkumar R; Isa D.
(1570015491)
This paper analyses the application of supercapacitors in a standalone off-grid
solar PV system. The solar PV system at University of Nottingham Malaysia
Campus (UNMC) was tested using a programmable load. The programmable
load was used to apply various load values to the system. The results on the
effect of using different loads will be analysed and tested with and without a
supercapacitor bank. Results show that the supercapacitor can supply peak
current demand and preserve battery state of charge during the day. This system
can be implemented in urban areas or small industries.
P011
(1570025089)
Effect of Varied Extracting Solvent on Stability and Reliability of DSSCs
Using Natural Dyes as Photosensitizer
Suriati Suhaimi; Mukhzeer Mohamad Shahimin
This paper describes fabrication and characterization of several natural dyes in
varied solvent. The varied fabrication step is characterized via the stability and
reliability study of the dyes as a photosensitizer. Rosella, Bawang Sabrang,
Cherry Barbados, Mulberry, Ardisia, Oxalis Triangularis and Harum Manis mango
are used as a dye sensitizer. The dyes are extracted in water and ethanol with
the same ratio was employed as nanoparticle titanium dioxide thin film dyesensitized solar cells (DSSCs). As for Rosella, Bawang Sabrang, Cherry Barbados,
Mulberry, Ardisia, Oxalis Triangularis and Harum Manis mango dye sensitized
electrode in water solvent, the solar cell yields of energy conversion efficiency is
about 0.67%, 1.06%, 0.14%, 0.33%, 2.64%, 0.68% and 0.03%, respectively. In
ethanol solvent the conversion efficiency for Rosella, Bawang Sabrang, Cherry
Barbados, Mulberry, Ardisia, Oxalis Triangularis and Harum Manis mango is
about 0.2%, 0.23%, 0.44%, 0.17%, 0.61%, 0.51% and 0.51%, respectively.
Moreover, the stability and reliability of the dyes extracted was also improved by
changes the solvent of extracting dyes after 24 hours being stored at room
temperature.
P012
(1570027105)
Investigation of Effectiveness of Phyllosilicate Into Polymeric Materials
A. F. Abidin; M. S. Hapeez; M. M. Mustam; N. R. Hamzah; N. L. A. Salahuddin
This paper describe the effect of adding fillers into polymer for dielectric
properties improvement. Two types of untreated phyllosilicate fillers which are
MMT and FC selected to be used in order to strengthen HDPE, SIR and NR
properties. The dielectric properties of three materials were observed from Tan
Delta and breakdown strength. Based on the findings, the tested filler contribute
a marginal improvement for certain electrical properties of insulation, i.e Tan
Delta and breakdown voltage. The finding would give a good indicator on
choosing the right filler to improve the performance of insulation properties.
Technical Session C3
Time
: 1050 - 1250
Venue
: Room 3
Session Chair : Dr. Mohd Tafir Mustaffa
ID (#)
E001
(1570006547)
Title, Authors & Abstract
A 9-Bit Current-Steering Digital to Analog Converter for Differential DcOffset Compensation of a Baseband Chain
Faizah Abu Bakar; Sohiful Anuar Zainol Murad;
Rizalafande Che Ismail; Ville Saari; Kari Halonen
A current-steering Digital to Analog Converter (IDAC) to compensate dc-offset of
a baseband chain in a Synthetic Aperture Radar (SAR) receiver is presented in
this paper. The differential dc-offset can be injected with the current steer
controlled by 9 digital control bits. The simulated LSB is 1.4 mV and the
differential voltage range is 283 mV when it is connected to the baseband chain.
This IDAC is implemented in a 130 nm CMOS technology and occupies 0.05
mm2 of silicon area. From the postlayout simulation of the IDAC, the voltage
range satisfies the specification obtained from the Monte Carlo simulations of
the baseband chain. The 1 Least Significant Bit (1LSB) of the IDAC ensure the dcoffset at the input of the following ADC met the system requirement.
E002
(1570018825)
E003
(1570023657)
Low Power CMOS Bandgap Reference Circuit
L. Lee; S. K. Koh
Bandgap Reference (BGR) circuit is to yield a precise and accurate dc voltage
which has minimum variation over an external influence. The objective of this
BGR paperwork lies on using two different temperature-compensation
techniques which are based on the resistor-subdivision method and resistorless
method on same BGR circuit structure. This project has been successful
simulated in CMOS 0.18-μm technology and provides the optimized corner
analysis results; which includes output reference voltage at 910.88 mV with
maximum temperature coefficient (TC) of 12.99 ppm/0C. Maximum power
consumption at 1.8V supply voltage is reported at 2mW.
Design and Implementation of a Room Temperature Control System:
Microcontroller- Based
A. L. Amoo; T. L. G. Soh; H. A. Guda; H. A. Sambo
Dedicated control over room temperature is not only a key issue in providing
work conditions that ensure employee satisfaction and hence increased work
output; it is now a health and safety issue. The design considered the flexibility of
using a microcontroller, PIC16F876A along with other peripheral devices such as
LM35 temperature sensor, LCD display unit to form all-encompassing single
system. In this work the microcontroller was programmed using MP LAB IDE. It
accepts inputs from a simple four-key keypad providing users with ease of
adaptability and flexibility in selecting desired temperature range of choice. The
microcontroller compares the measured room temperature with the reference
input. The output from the controller is used to drive a relay through an Optocoupler which switches between AC and Room Heater according to the control
decision. The result obtained was adequate within the scope of the work with
95% accuracy index. The design could be improved upon by making use of
silicon-controlled switches that are not noisy in operation rather than the
electromagnetic relays used as actuator.
E004
(1570031009)
Memristor in Digital Logic Circuit: Fabrication and Proof of Concept
I. S. A. Halim; M. Dzulkifli; N. S. Khairir; N. F. Sharin;
R. A. Bakar; S. L. Hassan; S. H. Herman; W. F. H. Abdullah
This project presents the fabrication and characterization of memristor and its
implementation in digital logic. The memristor was fabricated using TiO2 thin
film using sol-gel spin coating technique. In order to determine the electrical
properties of memristor, a metal insulator metal (MIM) configuration was used. It
was found that the RON and ROFF for the MIM structure were calculated to be
1.55 MΩ and 1.58 MΩ respectively. Functionality testing was done for currentvoltage (I-V) characteristics and switching test. From the test, memristor is
resulted to have a suitable characteristic for digital logic in nano-scalic
environment.
E005
(1570020979)
Automated Train Track Misalignment Detection System Based on Inertia
Measurement Unit
Kang Chun Hong; Fawnizu Azmadi Hussin; Abu Bakar Sayuti Saman
This paper presents a feasible, portable and low-cost detection technique for
train track misalignment by using a micro electro mechanical system-based
inertial measurement unit (IMU). As the train track serves as the steering base for
railway vehicles, sensor measurements from IMU reflects the interaction
between train and its track, as well as enhances identification of potential
misaligned track. A field testing was conducted on a passenger-loaded Electric
Train Service (ETS), covering from Kampar Station to KL Sentral Station in
Malaysia. The measurements were analyzed and presented with discussion on
track characteristics, train motion and noise. The end-product of this system
aimed to identify the location of potential misaligned tracks, improve train track
maintenance system and enhances riding comfort for the passengers.
E006
(1570029127)
Reusable and Design Independent Memory Controller Scoreboard Using
Memory Data Hazard Checks
Rosmiwati Mohd-Mokhtar; Manobindra Gandhi
This paper investigates memory data hazard checks as a method to implement a
reusable and memory controller design independent scoreboard. A scoreboard
architecture that uses memory data hazard checks is proposed and
implemented, along with a testbench implementation that uses this scoreboard.
The memory data hazard scoreboard and testbench implementation is then
evaluated on selected memory controller designs, for functionality, as well as
reusability. The evaluation results show scoreboard reusability of 100% is
achievable, with testbench reusability of at least 60%, and up to 70%. A
qualification process is established to ensure the scoreboard and testbench is
functionally correct. From the results, it shows that a properly architected
scoreboard and testbench code, once properly qualified, can significantly reduce
verification time on subsequent projects.
Technical Session C4
Time
: 1050 - 1310
Venue
: Room 4
Session Chair : Dr. Asrulnizam Abd. Manaf
ID (#)
E007
(1570023317)
E008
(1570025943)
E009
(1570031449)
Title, Authors & Abstract
Dielectric and Structural Property of Bilayered Films PVDF-TrFE/PbTiO3
Based Metal-Insulator-Metal Capacitor Prepared by Sol-Gel Method
M. H. Wahid; M. Rusop; Z. Nurbaya
Development of innovative device design was fully utilized to fabricate hybrid
composited PVDF-TrFE/PbTiO3 that having bilayered films capacitors. Step by
step of layer deposition trough spin coating method had performed an optimal
thickness of ~319 nm PbTiO3 first layer and ~470 nm polymer second layer. It
was found that averagely 55.6 nm multigrain size of PbTiO3 performed high
densification films with minimal porosity behaviour. Thus, the co-polymer layer
plays important role to cover up the porosity and as well as the stiffness of the
PbTiO3 first layer with membrane like structured films. The dielectric
measurement of the bilayered films showed the reduction of dielectric constant
at low frequency compared to the PbTiO3 single layer, however, contrary effect
on tangent loss (tan (δ)) measurement. The equivalent capacitance value of both
films configuration showed some interest where the significant consideration of
series capacitance effect on bilayered films could be ignored. Therefore, to the
best of our known, the significant of this study is to investigate dielectric and
structural property of nanoscaled device using hybrid combination of
polymer/ceramic having bilayered composition based metal-insulator-metal
capacitors.
Atomistic Simulation of Stone-Wales Defect Position in Armchair Graphene
Nanoribbon Field-Effect Transistor
Adila Syaidatul Azman; Zaharah Johari; Razali Ismail
Graphene continues to fascinate the research community due to its excellent
physical and electrical properties. In this study, the electronic and transport
characteristics of armchair graphene nanoribbon (AGNR) with a Stone-Wales
(SW) defect is investigated. The SW defects are located at three different
locations on the AGNR device; underneath the metal gate, near the drain edge
and near the source. The band structures, density of states and transmission
spectra are analyzed. The current-voltage characteristics are then extracted and
the performance of pristine AGNR and AGNR incorporated with the SW defects
is analyzed. From the simulation, it is found that the position of the SW defect on
the AGNR device alters the electronic and transport properties of the AGNR.
Remarkably, the SW defect increases the amount of energy bandgap, while
decreasing the drain current. The outcome of this study suggests that defects
present on AGNR are not unreasonable and may be useful to enhance transport
properties.
The Effect of Defect on Thermal Conductance of Single Layer Graphene
Transistor
Marriatyi Morsin; Yusmeeraz Yusof
Graphene is a promising new material for the construction of field effect
transistor based because of its band gap can be tuned by surface modification.
In this paper, the performance of single layer pristine graphene (SLPG) and
single layer with single vacancy graphene (SLSVG) is investigated. Both physical
and electrical properties of the graphene field effect (GFET) are simulated using
Atomistic Tool Kit from Quantum Wise. Their band structures and transmission
spectra are analyzed. The conductance and thermal conductance characteristic
for both graphene are compared. From the simulation, it is found that single
layer with single vacancy performs improvement in conductance and thermal
conductance. Results obtained will give standpoint in the implementation of
'defect graphene' for performance enhancement in future electronic devices.
E010
(1570021197)
Flexible Bio-signals Channels Acquisition System for ECG and EMG
Application
Fauzani N. Jamaluddin; Siti A. Ahmad;
Samsul Bahari Mohd Noor; Wan Zuha Wan Hasan
Each nerves and muscles of human body will generate potentials, voltages, and
electrical field strength and known as bio signals such as electrocardiograph
(ECG), electromyography (EMG), electroencephalogram (EEG), and
electrooculogram (EOG). The signals may be acquired through non-invasive
surface Ag/Ag Cl applications although the generated signals exist in very low
levels of voltages. All the bio signals may be obtained from basic designs of
instrumentation amplifier with the help of Ag/Ag Cl electrodes. However,
different frequency band, interference, amplitude and strength may give huge
challenges to the acquisition system. This paper provides instrumentation
amplification design, include with the design concept to allow for flexible
channels especially on ECG and EMG applications. To suits bio-signals frequency
bandwidth need, digital filter design in Labview software is added, as a part of
acquisition system.
E011
(1570025849)
An Innovative and Simple Intelligent Health Monitoring System to Observe
Patients' Physical Conditions From Remote Places
Farhan Obaidi Turjo; Nawshed Ahmed; Tanvir Islam;
A. K. Mahbubul Hye; Bishwajit Banik Pathik
This article presents a simple yet unique health monitoring system especially for
the critical or unattended patients who need continuous observation. In this
system patients' physical information i.e. body temperature, pulse rate, blood
glucose level have been measured using different sensors which are then
automatically uploaded to online for observation of their physicians or the
relatives who are at distance places from the patients. Here, firstly patients' body
temperature, pulse rate, blood glucose level are measured using different
sensors which are then fed for processing to a microcontroller. The processed
data is sent to LCD display, where these information has been viewed for the
first time, as well as to a computer through RF (Radio Frequency) module. Next
the data from module is converted by RS232 to USB converter and decoded by
mikroC software. At last the decoded data from the device is updated online
automatically in the interval of 15 seconds with the help of a software platform.
This novel system would be helpful for the relatives as well as the doctors to
monitor the patients' condition from anywhere and to react quickly in case of
unwanted serious condition.
E012
(1570031867)
Photoplethysmographic Based Heart Rate Variability for Different
Physiological Conditions
Mansoor Hussain Shah; Syed Absar Kazmi;
Khairul Azami Sidek; Sheroz Khan; Fatema-tuz-Zohra Iqbal
This paper investigates the feasibility of using photoplethysmographic (PPG)
signal for heart rate variability (HRV) using different physiological conditions. In
this paper, we have analyzed four physiological conditions i.e; sitting,standing,
laying and jogging. The Easy Pulse sensor module was used to pass the signal
sensed by the optical sensor through a series of high and low pass filters which
later generates a conditioned PPG signal at its output. The Arduino processing
module was used for the digitization and processing of the PPG signals. The
Arduino program was then developed to capture the PPG data and waveforms.
The Kubios HRV software was used to process the PPG data and manipulate it
into a HRV format. The PPG signal was then analyzed in time and frequency
domain parameters. Later, report sheets were generated based on these
analyses. The results showed that the PPG signal as well as HRV changes
depending upon the physiological conditions.It was also examined that the low
and high frequency components of PPG signal also varied according to the
change in physiological condition.
E013
(1570030755)
Transabdominal Fetal Pulse Oximeter Using LEDs and Photodiode: A
Design Consideration Study
Nur Anida Jumadi; Gan Kok Beng;
Mohd Alauddin Mohd Ali; Edmond Zahedi
This paper presents a design consideration study of portable light detection
components to be applied in the transabdominal fetal pulse oximeter. Several
limitations are found in the previous fetal oximeter sensors. The sensors are
either suitable to be used for invasive technique, high-power dependent or
bulky in size. The selection of the light source is considered based on several
parameters such as wavelength, angle of half intensity, power dissipation and
cost. Meanwhile the selection of light detector is depends on the active area,
electrical-optical characteristics, photodetector noise and cost. An
instrumentation system setup utilizes the chosen sensors has been developed. In
order to evaluate the capability of the proposed sensors, two measurements are
done based on the sensors modes arrangement; transmission and reflectance.
The preliminary results show that the developed system is able to measure the
PPG signals in two different modes. From the experiment observation, the
current limit resistor and the emitter-detector spacing are the two pertinent
parameters that affect the operation modes of the proposed sensors.