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ARPN Journal of Engineering and
Applied Sciences January 2019 | Vol. 14 No.
2 |
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Title: |
Surface hardening of aluminum alloys by intermetallic phases,
synthesized in the process of electron beam treatment |
Author (s): |
Khaled Hamdy, Fedorov Sergey V. and Min Htet Swe |
Abstract: |
The experimental results indicate the possibility of obtaining on the
surface of the aluminum alloy layers, modified by alloying with
electron-beam technology, significantly increases its wear resistance.
Such layers obtained thanks to the initiation of exothermic chemical
reactions between substrate and deposited on it a thin film of titanium.
In the reaction products was revealed the formation of intermetallic
phases. |
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Title: |
Squeeze Film characteristics of MHNN lubrication of porous curved
circular plates |
Author (s): |
Sundarammal Kesavan, B. Vijayakumar and Santhana Krishnan Narayanan |
Abstract: |
In this article, a hypothetical study on the Squeeze Film attributes of
Magneto Hydrodynamic Non Newtonian (MHNN) Lubrication of Porous Curved
Circular Plates is presented. The higher and lower plate curve is
described in exponential form and hyperbolic form respectively. A
transformed Reynolds equation is obtained. The final form of result is
got for pressure, squeeze film time and load carrying capacity. It is
discovered that the pressure, load carrying capability and squeeze film
time increase with effect of Magneto Hydrodynamic Non Newtonian (MHNN)
and combined effectiveness of MHD and Couple stress fluid. |
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Title: |
Kinematic modeling for PID position control of a new three-fingered
robotic hand |
Author (s): |
K. Nasir, R. L. A. Shauri, N. M. Salleh and N. H. Remeli |
Abstract: |
A new design of a three fingered robotic hand has been developed and
verified for a grasping task based on a set of predetermined angle
position. However, the robotic hand has limitation in integrating
measurement from external sensors to create its own 3D position vector’s
trajectory. Therefore, it is required to create a new mathematical
kinematics equation for the hand that relates between the direct joint
angles and the position vector of the finger-tip in order to produce
motion based on Cartesian coordinates. The study derived the kinematics
based on the joint and link dimensions of Finger 1 and 3 using
geometrical approach due to their different styles of motion. Simulation
results verified the correctness of the equations where the proposed
inverse kinematics has correctly converted the position vector of
tip-end to the required motor angles of each finger joint. Consequently,
the kinematics is verified to be able to provide the angle references
for the position control of the motors in real-time experiment according
to the varied fingertip positions. The output of this study is
beneficial to the robot control when trajectory needs be generated based
on sensor information. Besides, individual control of separate finger
joints between the fingers could increase the grasping flexibility and
be a good reference for the development of the robot arm in future
study. |
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Title: |
Optimization of electrolyte composition for the cathodic template
deposition of Ni(OH)2-based electrochromic films on FTO glass |
Author (s): |
Kotok V. A., Kovalenko V. L., Zima A. S., Kirillova E. A. Burkov A.A.,
Kobylinska N. G., Kondrat’ev D. A., Chernova O. V., Zhukovin S. V. and
Khranilov Yu. P. |
Abstract: |
A series of experiments have been conducted in order to determine the
optimal concentration of polyvinyl alcohol (PVA) for deposition of
electrochromic nickel hydroxide films onto fluorine-doped tin oxide (FTO),
using cathodic template deposition method. Fundamental physicochemical
properties of electrolytes for cathodic template deposition method with
different concentration of PVA have been studied. It was found that
higher concentrations of PVA resulted in higher adhesion of films to FTO
substrate and higher performance; however, excessive concentrations
resulted in degradation of film performance. It was also found, the
electrolyte viscosity is directly dependant on PVA concentration,
however, no correlation between PVA concentration and conductivity have
been found. A hypothesis was proposed to explain such behavior. |
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Title: |
A pilot model for slaughterhouse wastewater treatment using
Moringa
oleifera seed husks, pods and extract followed by aeration |
Author (s): |
Raed S. Al-Wasify, Alaa K. Mahmoud, Samar R. Hamed, Israa E. Abdelaziz
and Shimaa R. Hamed |
Abstract: |
Untreated slaughterhouse wastewater contains high concentrations of
organic matters, suspended solids, and pathogenic microorganisms which
have destroying effects on the environment. Thus, slaughterhouse
wastewater should be treated properly before discharging into the
environment. A pilot model was installed that consisted of three
treatment stages; bioadsorption, coagulation and aeration. The first
stage used Moringa oleifera seed husks and pods as a bioadsorbent. The
second stage used M. oleifera seeds extract as natural coagulant and
followed by the third stage (aeration stage). M. oleifera seed husks and
pods proved a good ability to remove total suspended solids (TSS), total
bacterial count (TBC), total coliforms (TC) and Escherichia coli,
without significant removal of organic matters. A significant increase
in organic matters represented in chemical oxygen demand (COD),
biological oxygen demand (BOD), total Kjeldahl nitrogen (TKN) and total
phosphorus (TP) concentrations after the coagulation stage. The aeration
stage succeeded to remove this occurred increase in the coagulation
stage. The overall average removal percent after aeration stage were
95.68%, 95.89%, 70.15%, 82.98%m 83.91%, 90.49%, 90.58% and 88.66% for
COD, BOD, TSS, TKN, TP, TBC, TC and E. coli, respectively. The obtained
results indicated the suitability of using M. oleifera seed husks, pods,
and extracts in slaughterhouse wastewater treatment. |
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Title: |
Optimum allocation of capacitor and DG in
MV distribution network using
PSO and Open DSS |
Author (s): |
Naji Eltawil, Marizan Sulaiman, Meysam Shamshiri and Zulkiflie Bin Ibrahim |
Abstract: |
The Optimum Capacitor and Distributed Generation (DG) allocation in
Medium Voltage (MV) distribution network utilizing Particle Swarm
Optimization (PSO) for selecting the optimum size and placement of (DG)
units can significantly affect the distribution network. Capacitor
installation is a standard method for reactive power compensation within
a distribution network. The placement and sizing of the capacitor have
been optimized in the distribution network for a number of capacitors
with the objective of voltage profile improvement and power losses
minimization. Maximum and minimum bus voltage and possible maximum
capacitor size were the constraints of the optimum capacitor and sizing
problem, which take into account as penalty factor (PF) within the
objective function (OF) and the allocation of DG units. To solve the
obtained OF, PSO and Open DSS engines were used in this research to
analyze power flow results that obtained from the standard IEEE14 Bus
system. The performance evaluation of PSO model was carried out by
showing the results that the PSO algorithm. PSO can obtain the optimal
solution of the size and location also find the optimum DG size for the
loss minimization and voltage profile improvement compared to the
standard case without DG and capacitor compensation. All simulations had
been performed using MATLAB software. |
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Title: |
Experimental analysis for the effect of coefficient of performance (COP)
on solar refrigerator with axial D.C. fans |
Author (s): |
Ratan Kumar, Parag Mishra and Ajay Singh |
Abstract: |
Domestic refrigerator is used in almost every household for preserving
food, cooling water, freezing ice and many more. This research is done
on a domestic refrigerator which is powered by solar panel. It is an
attempt to analyze the effect of COP on a refrigerator. This experiment
is conducted on a domestic refrigerator in which extra D.C. axial fans
have been fitted in the back panel of refrigerator and these extra
fitted fans cool the condenser faster than that of without fan.
Therefore, the heat transfer from the condenser is more. In this
experiment it is found that average coefficient of performance (COP) of
domestic refrigerator with D.C. axial fans is higher than that of
without D.C. axial fans by 0.038 in the studied range. This increment in
COP is obtained due to the extra fans fitted in the back panel. It is
also observed that the refrigeration effect (RE) of refrigerator with
fan is about 7.02% higher than that of without fan. |
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Title: |
Analysis study of angle effect on power in solar cell of hybrid model
solar cell-piezoelectric |
Author (s): |
Syawaluddin, Ery Diniardi, Anwar Ilmar Ramadhan, Nurul Hidayati
Fithriyah and Erwin Dermawan |
Abstract: |
Indonesia is a tropical country, thus making Indonesia has two seasons
namely the rainy season and the dry season. Utilization of nature as
electrical energy in the dry season is utilized by utilizing solar heat
as energy stored during the day and used or used as electricity at
night. However, in the rainy season there is no utilization of energy
that can be utilized or used as electrical energy. This case for the
researchers intend to utilize the energy generated from the rainwater
pressure that descends from the sky as compressed energy on the
piezoelectric. The objective of the study was to determine the optimal
conditions of the initial testing of the solar-cell part of the hybrid
model. The research method used is experimental experiment on solar cell
with angle and time variation to determine current, voltage and power.
Results obtained by the amount of angle, time, current and voltage
generated from the solar cell to be used in the hybrid model: effective
time and angle that is at 12:00 Clock and 180o, with a voltage (V) of
4.75 V, current (A) of 8.5 mA and power of 0.018921 W. |
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Title: |
Finite element analysis of reinforced concrete deep beams strengthened
in shear with CFRP |
Author (s): |
Ahmed Abdullah Mansoor, Wisam D. Salman and Ali Lafta Abbas |
Abstract: |
A paper presents a numerical analysis using ANSYS finite element program
to develop a model for expecting the performance of seven lightweight
aggregate reinforced concrete deep beams with 28 days compressive
strength 26MPa and density of 1950Kg/m3 strengthened in shear by
externally bonded CFRP. All beams have same dimensions (150mm width,
400mm depth and 1400mm length), longitudinal steel reinforcement ratio
p=0.0115 and shear steel reinforcing F5@100mm. CFRP strips 50mm width
are used for strengthening. The effective variable parameters were: a/d
ratio, CFRP spacing, orientation and number of layers. The results
obtained from the ANSYS finite element model got good agreement when
compared to the experimental results [1] which were done for the same
deep beams with the same material properties, internal reinforcement and
strengthening schemes. The results show that the ultimate load and
deflection predicted by numerical analysis is less than experimental
results by 9% and 5.7% in average respectively. By using CFRP strips in
shear strengthening, the ultimate load has increased by 18%, 13.6%, 32%
and 27.3% for vertical, horizontal, inclined and double vertical layers,
respectively for a/d=1. For a/d =0.8 the increase is 10% for vertical
strips. It is recommended that the CFRP is placed such that the
principal fiber orientation is either normal to the longitudinal beams
axis or normal to the line joining the applied load and supports (strut
path) to resist higher tensile stresses and strains distributed along
it. |
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Title: |
Competency estimation of fixed constraint length convolution- ally coded
O-IDMA system using multifarious inter-leaver |
Author (s): |
Ravi Prakash and N. K. Shukla |
Abstract: |
Optical interleave division multiple access (O-IDMA) technique suits best
when heavy traffic intensity and greater interfering environment. This
technology has proved its supremacy on other existing multiple access
technology like CDMA, OFDMA, FHSS etc. Inter-leavers play on major
contribution in deciding specific users in multi user detection method.
In present article random, tree and prime inter-leavers are used for
measuring the efficacy estimation of O-IDMA technique. Convolutional
codes, for fixed number of memory units (fixed constraint length) are
incorporated in encoder architecture for estimation purpose. The code
rate has been changed and BER for different users has been examined for
different inter-leavers. |
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Title: |
Experimental evaluation of the energy performance of a photovoltaic
generator in a process of optimization of mechanical compression
refrigeration |
Author (s): |
Adingra Kouassi P. A., Toure Siaka, Traore Diakaridja and Wanignon
Fassinou F. |
Abstract: |
The design of a photovoltaic generator is generally obtained from the
energy characteristics of the solar collector and from the daily light
energy that falls on its surface. The optimization of this design
depends essentially on the daily sunshine rate, the size of the
photovoltaic generator and the energy behavior of the associated load.
This article proposes an optimization of the performances of a
photovoltaic generator through a concrete evaluation of the capacity
electrochemical battery to install for the supply of a 150-liter DC
refrigerator. In an experimental study, we characterized the solar
energy potential of the city of Abidjan (Côte d'Ivoire-West Africa) and
evaluated the energy performance of a photovoltaic generator (250 Wp/100
Ah) linked to a mechanical compression refrigerator. The results showed
a mean daily irradiation between 3.5 and 5 Kwh/m2 for 6.5 hours of
average insolation per day and a maximum photovoltaic energy production
of 48 Ah/d of the solar panel. We obtained a maximum daily consumption
of 30 Ah over a cumulative period of 12 hours of operation of the
motor-compressor. The balance between production and consumption has
confirmed a surplus of energy generated by the solar panel that can
reach 45 Ah in front of an energy demand of the motor-compressor between
4 and 8 Ah, during the period of insolation. This experimental approach
allows for an improved planning of the capacity electrochemical battery
to install in photovoltaic solar refrigerators. |
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Title: |
MMF based fault-ride in distribution networks |
Author (s): |
C. Malathi and Siddappa Naidu |
Abstract: |
Accurate location of the fault in the line of a distribution
network using mathematical morphological filtering technique is
implemented in the paper. Different sorts of methods have been proposed
for FL in distribution systems. FL methods can be grouped into three: (i)
impedance-based methods (ii) traveling wave-based methods and (iii)
methods based on neural networks. The Estimation of the fault distance
by relating apparent impedance with the pre-known line data is done. The
results location accuracy decreases due to the application of
distribution networks with some laterals, sub-laterals, and load taps.
Traveling wave-based, in contrast, is an FL method which is been widely
used in transmission lines. Classification of methods based on wave-head
identification, characteristic frequencies, single-end, two-end, and
multi-end. Morphological filters such as
dilation-erosion difference filter, Open Close-Close Open filter and
Close-Open Difference Filter used in MM is utilized for the of accurate
and fast detection of the fault location. The simulation
studies are performed in MATLAB environment and voltage/current
waveforms obtained at different nodes are transferred to MATLAB and
analyzed by using MM for the exact location of the fault. and to analyze
the impact on the detection of the fault. MM is the time
domain approach for the above-said objective whose simplicity and
accuracy are the attractive feature for fault location in power system
signal. |
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Title: |
End-Length-offset influence on the bending rigidity of linear tapered
T-Beams |
Author (s): |
Myriam Rocio Pallares M., Maria Fernanda Cabrera Silva and Karen Melissa
Diaz Rojas |
Abstract: |
In this study, a calculation system in Maxima (GNU) was implemented,
based on the numerical integration of the flexibility parameters to
obtain the elements of a T-beam stiffness matrix with linear haunches
including zones of infinite rigidity (rigid end off-sets) and
shear/axial deformations. The length of these zones is assumed as half
the width of the beam-column joint. The goal is to demonstrate that, an
analysis based on the geometry between centroidal axes without
considering joint stiffness, tends to exhibit greater flexural strength,
overestimating the lateral deformations, which can be important when
calculating the lateral displacement of frames. The flexural rigidity
parameters of a T-beam with and without zones of infinite rigidity were
determined through the calculation of the flexibility integrals using
the three-point Gaussian quadrature rule of integration. Increases in
stiffness (%) were determined when rigid end off-sets were considered. |
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Title: |
A vision-based surface roughness measurement using a geometric search
technique |
Author (s): |
N. Nithyanantham, K. Prathapchandran and P. Suresh |
Abstract: |
Machined surfaces are made by various machining processes each
subsequent to a trademark surface on the machined surface. In the
machined surfaces the surface additionally varies in view of the sort of
cutting parameters, machining hardware and condition. Surface harshness
estimating sets up high outcome in the business. Pictures of surfaces
caught utilizing vision framework can be utilized to recognize,
investigate and measure surface after the usage of value change
calculations. Dissimilar to the stylus instruments, the PC vision
frameworks have the upsides of being non-contact and are equipped for
estimating a zone of the surface instead of a solitary line, which makes
it a three dimensional assessment. In this work, optical surface
harshness parameter 'Ga' has been acquired from a picture and is
contrasted and broadly utilized traditional normal surface
unpleasantness 'Ra' got from the stylus device for processed and formed
surfaces. All work pieces are made to various roughness’s utilizing
different manufacturer forms which incorporate molding, processing and
crushing. The surface pictures are snatched utilizing a charge coupled
device (CCD) camera and after that exchanged to the computer workstation
through an edge grabber. Subsequent to pre-processing, the geometric
search investigation procedure is connected to improve the nature of
pictures. At that point the optical surface parameter Ga is computed for
all the surface images. These Ga esteems have been contrasted and the
individual Ra esteems estimated utilizing stylus device. |
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Title: |
Two-Way SMS and braille communication for the visually impaired |
Author (s): |
Aaron Don M. Africa, Aldrich Kevin G. Chua, Sylbert Danley O. Chua,
Lawrence De Ausen, Joseph Vincent M. Gregorio and Mark Daniel Quilnet |
Abstract: |
Communication has played a vital role in our everyday living. But what
is communication? Communication is basically the exchange of information
between two or more people. With our world that’s innovating faster as
time passes, we can’t simply deny that communication is important.
Communication between people is easy as long as you can reach them
whether it is with the use of the email, mobile phones, letters and any
other forms of interactions. Communication via email and mobile phones
are almost available to all but not for the disabled. A good example is
the communication among the visually impaired. Communication with the
use of devices posts a difficulty to the visually impaired since they
cannot see what they are going to click to be able to compose or read a
message. With the innovation we have now, it is undeniable that devices
for the visually impaired are being produced so they can act as a normal
person. In this thesis, the group created an SMS device for the visually
impaired. The output of the project can send and receive SMS messages
which can be read via braille display. The creators used microcontroller
PIC18f4620 and programmed using MikroBasic. |
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Title: |
Design of rectangular microstrip patch antenna for
WLAN and WiMAX
applications |
Author (s): |
Ahmed Shakir Al-Hiti |
Abstract: |
Nowadays in the world of communication schemes the most extensively
investigated area is of wireless technology and a study of communication
schemes is incomplete without an understating of the operation of the
antennas. In the last years of improvement in communication schemes a
requisite for the improvement of lightweight, consolidated and
cost-efficient antennas which are ability of preserving high performance
through an extensive spectrum of frequencies. This technological trend
has focused much exertion into the scheme of a microstrip patch antenna.
Today, Worldwide Interoperability for Microwave Access (WiMAX) and
Wireless Local Area Networks (WLANs) applications are extensively
utilizing microstrip patch antenna. In this paper, it proposed a new
design for micro-strip patch antenna over WiMAX and WLAN applications.
The proposed antenna design uses different frequency band and it is
operating within narrowband at this band. This adjusted antenna design
provides better performance whence Return Loss, Voltage Standing Wave
Ratio (VSWR), Impedance Matching, Gain and Radiation Pattern. |
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Title: |
Indoor tracking personnel for RFID with FPGA |
Author (s): |
Muataz H. Salih, Saif N. Ismail and Lim H. Teng
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Abstract: |
These days, Tracking has become one of the most important issues dealing
with public security, and the term has been used is Global Positioning
System (PGS). In order to track personnel anytime within a building, an
indoor localization system is required. It should at least able to know
the current location of the personnel in terms of floor level or room
location. Besides, it should be able to track the movement direction of
personnel inside the building. This indoor localization system should be
a real-time system that has minimum response time to get the location
information and easy accessible by users. Quartus Prime 15.1, Arduino
IDE 1.8.1 and Android Studio are used in this project as development CAD
tool. The system is implemented on FPGA DE1-SoC board by integrating
with WiFi modules and Radio-frequency Identification (RFID) system. The
system has the ability to add new client data onto FPGA memory for next
time tracking purpose. The localization information can be obtained by
accessing the mobile application where someone can key in the client
name, employee ID or floor number to get the corresponding result.
Moreover, the designed system achieved high operating frequency up to
1.6GHz and on chip resources of 188 logic elements and 143 registers. |
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Title: |
Design and implementation of FPGA-based visible light communication |
Author (s): |
Mohammad F. Bin Baharudin,
Muataz H. Salih and Saif N. Ismail |
Abstract: |
Visible light communication system (VLC) is known for the greater
solution for data transmission of radio frequency communication. VLC
communication is practiced to take full advantage of its large
bandwidth, fast data transmission speed and high security. Fast tracking
globalization demands for security of data transmission, speed of
getting them and availability. Aim of this project is to implement the
VLC, improve safety issues, increase the system speed performance and
develop an IoT plug-in module. Steps must be taken into account prior to
designing the project, such as component behavioral checking.
Understanding of single data transmission must be well versed before
taking the project to the next level of multiple data transmission. For
father understanding of VGA system the flow of designing the system need
to start from one bit of data to 8 bit of data. After all the phase of
design and testing the system, each of the design need to integrate
which each other and interface with the prototype. VLC design and VGA
system is obtained and displayed. In conclusion, the implementation of
FPGA based VLC is achieved. |
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Title: |
Experimental investigation of cylinder deactivation impact on engine
performance and emission for SI engine |
Author (s): |
N. A. Abas, N. Tamaldin and A. K. M. Yamin |
Abstract: |
Cylinder deactivation is one of the promising fuel efficiency strategy
that offers lower fuel consumptions and exhaust emissions by allowing
the multi-cylinder gasoline engine running with smaller engine
displacements at part load operation. Cylinder deactivation technology
has been developed by several vehicles manufacturers and extended to as
large as 6.5l V12 engine and as low as e3.5l V6 engine. Only few
manufacturer has developed a 1.4 liter inline, 4-cylinder engine which
is Volkswagen TSI Polo BlueGT. This is because the effectiveness of the
cylinder deactivation concept depends on the power to weight ratio,
engine balancing, and other factors. However, in this study an effective
cylinder deactivation system is implemented for smaller engine
displacement. The aims of this study are to investigate the potential of
cylinder deactivation strategy for small SI engine with 1.3 liter in
improving the fuel economy and emission at part load. The skip fire
cycle method was applied to cylinder deactivation strategy using a
relay-based system which was built to enable the manual control of
ignition and injection for each cylinder. The effectiveness of the skip
fire cycle method is measured at steady state for fuel consumption,
emissions and vibration. To verify the feasibility and effectiveness of
the skip fire cycle, a manual CDA was developed and set up to a research
vehicle. The measurements show the improvements of fuel consumptions and
exhaust emissions at the expense of the engine power loss and vibration.
The results show the CDA strategy could be successfully implemented to
small displacement engine with an improvement of the fuel consumption
and emission. |
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Title: |
Design and development of active power filter for harmonic minimization
using synchronous reference frame (SRF) |
Author (s): |
Rosli Omar, Mohammed Rasheed, Zheng Kai Low and Marizan Sulaiman |
Abstract: |
The research for the aimed towards avoiding the waveform of the current
from distorted is make the researchers interested to do that.. The
controllers used in an active power filter play an important role in
determining the current waveform in electrical system will smooth with a
minimum of the total harmonic distortion (THD). The main purpose of this
paper is to propose the controller of an active power filter based on
synchronous reference frame (SRF). A model of the proposed controller
has been developed using MATLAB/SIMULINK.. The results of the simulation
shows that the effectiveness of the proposed controller toward in
reducing THD at the acceptable. |
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Title: |
Design of a nonlinear self-tuning parameters algorithm for different
types of PID controllers based on artificial intelligent |
Author (s): |
Khulood E. Dagher |
Abstract: |
A new nonlinear self-tuning parameters algorithm for two types of the
PID controllers is designed, the first type is traditional PID
controller and the second is nonlinear PID controller, with intelligent
algorithm for nonlinear magnetic levitation system (MagLev) is presented
in this study. The proposed scheme of the on-line self-tuning control
algorithm is based on neural network and PSO algorithm to make both
controllers are an on-line adaptive PID controllers by calculating the
optimal nonlinear values of the PID parameters in order to generate the
best or near optimal value of the control action that will guarantee the
output of the actual model accurately represents the desired position
output of the magnetic ball. From numerical simulation results, the
nonlinear adaptive PID controller is the best from the traditional
adaptive PID controller with the proposed nonlinear self-tuning
parameters algorithm in terms of fast on-line learning and tuning the
nonlinear parameters of the controller with best voltage control action
that generated to precisely track the motion of magnetic ball and reach
to the desired position with convergence of the position error to zero
value. |
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Title: |
Determination of the PV module surface temperature based on neural
network using solar radiation and surface temperature |
Author (s): |
Aiat Hegazy, E. T. El Shenawy and M. A. Ibrahim |
Abstract: |
Photovoltaic (PV) energy is widely used over the world as the main step
to solve the electricity shortage problems. Also, in remote and rural
areas the use of PV systems can be considered the most important and
more efficient source of electricity for different domestic applications
and water supplying systems. Since the performance of any PV system is
directly influenced by weather data such as ambient temperature or solar
radiation, the accurate estimation of these parameters is essential for
good design and operation. Different attempts have been carried out to
determine the PV module surface temperatures using mathematical models
of the PV module, empirical formula and by neural networks. Neural
network (NN) doesn’t require any analysis of the system or scientific
details; it only needs data from the system for training purposes. The
present research describes the estimation of the PV module surface
temperature using NN based on measured ambient temperatures and incident
solar radiation. The NN is composed of input layer with two inputs
(solar radiation and ambient temperature), hidden layer that has eight
neurons and output layer to estimate the PV module surface temperature.
Error back propagation algorithm was used to train the NN based on the
measured data pairs at various working conditions. The result showed
that, the estimation accuracy of the PV module surface temperature by
the NN reached more than 96% of the measured value for clear and sunny
days. |
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Title: |
Toward an online musical objects repository for online customization and
reproduction of audio files |
Author (s): |
Diego Fernando Rojas, Yony F. Ceballos and German Sanchez-Torres |
Abstract: |
The musical objects repository is a web application created to orderly
store musical files, cataloging them using configurable metadata for
easy reference. It also allows the reproduction of online files through
play lists, as well as search and queuing. It was built using
technologies such as JQuery to handle the client side, PHP for the
server side, AJAX for communication and MySQL for data storage. The
designed interface was designed to allow navigation without interrupting
playback. The forms, both the creation of objects and the search, have
aids and validations to avoid repeating files, minimize the entry of
erroneous data and facilitate queries. The use of the repository is
efficient for specific purposes, and it is easy to create, to include
content, create users and user groups. |
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Title: |
A fuzzy approach for grammatical analysis of
English text |
Author (s): |
V. Ramaswamy and J. Sangeetha |
Abstract: |
True grammar checking of a language is more complex. One can mark to
some extent a whole appropriate grammar for a natural language, but
there is generally variety of exceptions in genuine practice that a
formal grammar is of negligible help in writing a grammar checker. The
most significant parts of a grammar checker of a natural language is a
dictionary of complete set of the words in that particular language,
accompanied with the part of speech of each word. The fact that all the
words can obtain many different parts of speech significantly enhances
the complexity of every grammar checker. The proposed work is based on
the natural language processing for Grammatical Analysis of English
Text. The work has the base idea of the syntactical and the grammatical
analysis of the English text by tokenization without the use of the
trained data sets. Grammar checking without the data set is the main
advantage of the proposed system where in the new patterns can be added
to the system without any training to the system. |
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Air Traffic Management system used intelligent computing |
Author (s): |
Sallami Chougdali, Khalifa Mansouri and Mohamed Youssfi |
Abstract: |
This paper presents the new real time approach based on agent
architecture for intelligent and real time air traffic management
systems. The proposed method consists to modulate the airport by two
agents; the first one is the P-Agent or planner agent, it consists to
negotiate with other airport and controls the aircrafts departures,
also, it allows to schedule the aircraft landing, the second agent is
Aircraft Landing Execution Agent (ALE-Agent), which allows controlling
the aircraft landing operation inside Air Traffic Management Advisor (TMA).
Also we propose the ATC-Agent, it consists to separate and to manage the
air traffic in the transit airspace between the departure airport and
arrival airport. To separate the aircrafts in the transit space and to
schedule the aircrafts landing we proposed a new real time method based
on the Least Laxity First algorithm. Our approach is developed to
analyse and optimize the Air Traffic Management process and it’s
compared by the classic method. |
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Title: |
Enhancement the turbulent heat transfer by using finned
converging-diverging nozzles |
Author (s): |
Khudheyer S. Mushatet and Zahraa K. Ali |
Abstract: |
The present work shows the effect of insertion converge-diverge
conical-nozzle turbulators fitted with triangle fins inside a heated
circular pipe on turbulent flow heat transfer, friction and overall
performance index. The study is performed experimentally for turbulent
flow system with use of air as a working fluid for a range of Reynolds
number between 10000 to 50000. The conical nozzles integrated with
triangle fins are utilized as turbulators to generate more complex
mixing flow along the pipe wall. The plane conical nozzles turbulators
are used for three various pitch ratios (Pr=1.0,1.5 and 2), and those
fitted with triangle fins are tested at pitch ratio Pr=1.0 with two
various area ratios of 0.064 and 0.149 respectively. The heat transfer
of conical turbulators integrated with triangle fins is enhanced by 274%
as compared with plain pipe and 55% as compared with inserted conical
nozzle turbulators alone for the larger area ratio (Ar =0.149). In the
addition, the Conical nozzle turbulators fitted with triangle fins give
optimum overall thermal performance as compared with unfinned conical
nozzle turbulators and plane tube. |
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Title: |
Inverse problems of heat and mass transfer in
one layer and multilayer
walling |
Author (s): |
B. Rysbaiuly, M. Ryskeldi, A. Kulzhanov and K. Rysbayeva |
Abstract: |
The paper examines the determination of thermal conductivity coefficient
of soil using the iterative method based on equations of heat and mass
transfers. The equipment measuring the temperature and concentration of
moisture was build, which is applicable to different areas of soil.
Also, the software programming was designed to solve the inverse problem
for mass and heat transfers. The numerical solution was obtained, which
was also compared to known characteristics of soil. Consequently,
estimations with highest precision were derived. Hence, the result
proves the validity of developed approximate method of finding
coefficient of thermal conductivity. |
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Title: |
Rheological model of Creep and Relaxation in asphaltic mixtures using
the transformed Carson Laplace, maxima and maple |
Author (s): |
Wilson Rodriguez C., Myriam Rocio Pallares M. and Julian Andres Pulecio
Diaz |
Abstract: |
In this article, the results of a Creep and Relaxation studies in
asphalt mixtures are presented. Initially, a description of the
conceptual model of the material and the details of the viscoelastic
characterization in asphalt mixtures using the Creep test are shown.
Then, the Creep phenomenon is represented using a generalized Kelvin
model with calibrated parameters [9]; also the relaxation model is
developed using the direct and inverse transformation of Carson Laplace.
For the modeling process of the two phenomena, a symbolic calculation
code was programmed using MAXIMA-CAS and Maple software. Finally, we
conclude that the generalized Kelvin rheological model fits the Creep
laboratory data, and, the calculated relaxation function simulates the
phenomenon correctly. This function was also compared with the
approximate analytical model of Schapery (1965) and the result data were
satisfactory. |
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Title: |
Analysis of EEG signals to study the effect of audio-visual tasks |
Author (s): |
G. Vaishnavi Chinamyee, Abhishek U. Patil and Deepa Madathil |
Abstract: |
The present paper reports on an analysis of EEG signals to study the
effect of audio-visual tasks and to see their effect on individual
subjects using EEG Neurofeedback. Neurofeedback helps to alter the
cognitive behavior. It could help in enhancement of the cognitive
behavior of an individual in ways. This method of correlating the
Neurofeedback to that of the scores helps us draw parallel and prove
that cognitive exercises can help increase the attention level of the
individual. The dataset involved processing of two band wavelengths:
Alpha (8-12 Hz) and Beta (12-22 Hz) to derive appropriate results and to
analyze theoretical and practical level and to keep a track of
appropriate changes that occur in the waveform. To ensure repeatability
of results so as to enhance the performance of the subjects to increase
attention level and practice the task, experiment protocol was
finalized. Our experimentation and analysis show that the results of the
experiment and numerical investigation have a good correlation to the
analysis of EEG Data. This paper concludes with the remarks on the Alpha
and Beta waves of the selected electrodes and the comparison between
each subject to show that these tasks did have an overall positive
effect. |
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Title: |
Multi nozzle parallel to improve efficiency cross flow turbine |
Author (s): |
Corvis L. Rantererung, Titus Tandiseno and Mika Malissa |
Abstract: |
Cross flow turbine is a rotating device that takes energy from the flow
of water emitted through a nozzle. Energy potential water can be
converted into kinetic energy on nozzle of water turbine . A stream of
water coming out from a nozzle that has a high speed hits the turbine
blade. After hitting the blade the direction of the flow velocity
changes so that a momentum changes which results in the turbine runner
spinning. The impulse turbine is the same pressure turbine because the
flow of water coming out of the nozzle is the same as the surrounding
atmospheric pressure. All high energy places and pressures when entering
the turbine road blade are converted into speed energy. The use of
parallel multi nozzle is very effective to improve the performance of
cross flow turbines as a driver of electricity generation. |
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Title: |
Novel fault detection on three-phase transmission line using modified
artificial neural network with wavelet based analysis |
Author (s): |
M. Nithyavelam and Siddappanaidu |
Abstract: |
Fault type identification and
fault distance calculation are the major
phases of reliability improvisation in power transmission in terms of
fault restoration. This paper proposes a novel approach for fault
discovery of three-phase double transmission line, which is primarily
based upon the Discrete Wavelet Transformation (DWT) and Modified neural
network algorithm. The proposed identification requires double side
three phase measured values of transmission current and voltage also
considers the shunt capacitance. Three phase currents of most effective
one end are measured and discrete features are extracted using discrete
wavelet transform. Those features are then used as inputs to the
modified neural network algorithm. The training data set for modified
neural network algorithm is obtained by way of simulating the ten
extraordinary kinds of faults the use of diverse values of fault
inception angles and fault resistances, so that the accurate
consequences may be received. The proposed modified neural network
algorithm employs twenty inputs and best one output for classifying the
faults. The distinctiveness of the proposed approach is that all the
features, inputs used in developing the algorithm are normalized, in
order that the approach may be used for any system with none significant
changes. The simulation of the Three-phase transmission line network and
discrete wavelet Transformation analysis are achieved inside the
toolboxes of MATLAB® and modified neural network algorithm codes also
are written in MATLAB®. |
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Title: |
Qualitative comparisons of elicitation
techniques in requirement engineering |
Author (s): |
Olatunji J. Okesola, Kennedy Okokpujie,
Rowland Goddy-Worlu, Afolakemi Ogunbanwo and Olamma Iheanetu |
Abstract: |
It is
often emphasized that the quality of elicited requirement is mostly
influenced by the elicitation techniques employed to gather software
requirements. Many elicitation techniques have been presented in
requirement engineering but they are hardly adopted in practice as the
available empirical and comparative evaluations are inadequate to guide
the software industry on which technique is better. Classifying a
selection of seven requirement elicitation techniques as collaborative,
individual or contextual, this study compares the popular techniques
using two groups of qualitative criteria - terms of information
collection and quality of feedback information. The evaluation results
are tabulated and the findings are depicted by spider diagrams. The
study concludes that each technique has its strengths and weaknesses,
the factors software engineers should weigh when selecting appropriate
techniques for requirement elicitation. |
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Title: |
RMS current based passive islanding
detection of DG using adaptive linear neural network |
Author (s): |
Anu Radha and Shimi S. L. |
Abstract: |
Distributed generators (DG) are gaining more attention in present
century due to reliability and better power quality. With the increase
in the use of DG, the nature of distribution is changing which causes
technical issues. One of these issues is related to islanding detection.
A real-time islanding detection based on ADALINE and d-q Theory is
proposed in this paper. Five ADALINE neural networks are used to
evaluate RMS current in d-q frame and one of these ADALINE is used to
evaluate the phase angle in d-q frame using phased-locked loop (PLL).
Change in RMS value of current is compared with threshold limit to
detect islanding. Islanding detection unit is used to send a trip signal
to DG side circuit breaker to disconnect the DG from load in case of
islanding. Simulation results are validated using the real-time HIL
OP4510 at different load conditions. |
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Title: |
ASH hole variation in rice husk biomass
furnace with parallel flow heat exchanger to drying box temperature |
Author (s): |
I. Gede Bawa Susana, I. Made Mara, I. Dewa
Ketut Okariawan, Ida Bagus Alit and I. G. A. K. Chatur Adhi Wirya Aryadi |
Abstract: |
The
process of drying food ingredients naturally has an impact on the low
quality of the products due to the non-optimal drying temperature.
Moreover, in the rainy or cloudy day, the drying process cannot be
carried out. In addition, for the rural communities, the drying process
that is done automatically or using mechanization is difficult to be
done because of the high operational costs. In this way the method of
conversion of rice husk biomass energy using a furnace equipped with ash
holes and heat exchangers are placed inside the furnace. The results of
this research revealed that on several furnace ash hole diameters were
found that the larger the hole diameter of the ash hole is directly
proportional to increase the drying box temperature. For the ash holes
with a 12 mm in diameter, the mean temperature and highest temperature
of the drying box were 72.79oC and 109.20oC respectively. |
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