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ARPN Journal of Engineering and
Applied Sciences
June 2018 | Vol. 13 No. 12 |
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Title: |
Assessing the influence of decision tree forest parameters on prediction
of monthly river discharge |
Author (s): |
Ali H. Al-Aboodi, Husham T. Ibrahim and Sarmad A. Abbas |
Abstract: |
The main objective of this paper is to determine the optimum values of
the main parameters of Decision Tree Forest (DTF) ( Maximum Trees in
Decision Tree Forest (MTDTF) , Minimum Size Node to Split (MSNS) , and
Maximum tree levels (MTL) ) , and assessing of their effect on predicted
average monthly discharge of Euphrates River, in Thi Qar province,
southern Iraq. Four popular statistical parameters were used as
evaluation criteria for evaluating DTF models performance: Coefficient
of Correlation (R), Root Mean Squared Error (RMSE), Maximum Error (ME),
and Mean Absolute Percentage Error (MAPE). Five-fold cross-validation is
applied in this research to evaluate the performance of the DTF models.
In the first stage of this study, the observed data volume involved in
DTF models was equal to 240 months; in this stage the results
illustrated that the optimum values of both MTDTF, and MSNS were equal
to 125 and 32 respectively, while the modification of the third
parameter MTL does not show any effect on the performance of DTF, it was
observed that the effect of this parameter on statistical parameters in
the form of a straight line. In the second stage of this study, the
observed data volume was increased to 480 months ; thus leading to
increase the optimum value of MTDTF to 225 , and decrease the optimum
value of MSNS to 2 ,while the results does not show any sensitivity to
the parameter MTL. |
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Title: |
Strength of lightweight aggregate foamed concrete
(LWAFC) exposed to elevated
temperatures |
Author (s): |
Doha M. Al Saffar and Qassim A. Al Quraishy |
Abstract: |
This paper reported an investigation on six mixes of Lightweight
Aggregate Concrete (LWAC) were produced to study the effect of elevated
temperature (200 to 700 °C) on the residual mechanical properties. The
first three mixes were considered as reference mixes consisting of
cement, Porcelanite as coarse aggregate, and fine Porcelanite as a
partial replacement and total replacement of sand. Two percent of foam
agent by weight of water was added to produce Lightweight Aggregate
Foamed Concrete (LWAFC). The results of testing showed that the high
elevated temperatures resistance of foamed concrete is better in terms
of the proportional loss in strength than normal concrete. Also, the
mechanical properties of LWAFC containing 50% and 100% of fine
Porcelanite aggregate are less affected by high temperature than the
sanded LWAFC. |
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Title: |
Cost analysis of dome structure with ring beam |
Author (s): |
B. H. V. Pai, B. Durga Prasad Baliga |
Abstract: |
Domes have been used throughout the ages as a housing form, or an
element of a housing form (roof structure). Whenever large column free
circular areas are to be covered with roof, domes become one of the
easiest choices. Surface area required to cover huge space by a dome
structure is minimal. Due to this, construction material usage becomes
less and this feature leads to economy. In the present paper, an RCC
dome with ring beam at the base has been analysed and designed through
developing a C language computer program. Only dead and imposed loads
are considered. Concentrated load acting at the apex is kept as further
scope of study. Necessary input values in the program when given, the
cost of construction of the dome is readily obtained. |
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Title: |
Global sensitivity analysis, inverse modelling on
soil water
infiltration |
Author (s): |
Goh Eng Giap, Kosuke Noborio and Asmadi Ali |
Abstract: |
Richards’ equation was used to govern water infiltration into the
unsaturated soil. Haverkamp’s hydraulic properties were used to govern
the matric pressure head and hydraulic conductivity relations. Sobol’
variance-based method as a global sensitivity analysis tool was coded to
study sensitivity and uncertainty values of input parameters. The same
input parameters uncertainty values used in Sobol’ variance-based method
could be subjected to an inverse method to search for a set of globally
optimized input parameters. Therefore, a simple Genetic Algorithm, i.e.
an inverse method, was coded and used to improve the current framework
for the uncertainty analysis. A simple significant digit approximation
method was developed, applied on the input parameters, and the generated
uncertainty parameter values were found to cause 15.4 % of error, which
could be reduced if the number of input parameter significant digit used
in the simulation were increased. The simple Genetic Algorithm was able
to search for a set of globally optimized input parameters at a low
population size, i.e. 50, on three cases tested and also was found able
to handle noise data. Data points at the lower and upper plains of the
water infiltration front are necessary for the inverse method. |
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Title: |
Evaluation of renewable energy resources potential for satisfying
electricity needs in the Niger Delta Region |
Author (s): |
Sofimieari Ibim Ebianga and Mohd. Wazir Mustafa |
Abstract: |
The growing effects of global warming and sustainable energy production
is a significant challenge in today’s world. This challenge is more
pre-eminent in growing economies and have remained so for many years,
and might remain so for a foreseeable future if without any action.
Nigeria is a growing economy that is endowed with ample energy
resources. The conventional and renewable energy resources in Nigeria if
adequately harnessed has the potential to meet the energy demand of both
urban and rural Nigerians. Nevertheless, Nigeria has a low energy
consumption rate when compared to other African countries. Nigeria’s
energy circumstance could best be seen as a country that is sustainably
rich, yet lack power. Previous works have presented ways in which the
available methods of harnessing sustainable energy sources can be
improved. There are limited works on the feasibility of meeting energy
demands for communities in the Nigeria Delta Region of Nigeria. In this
work, the possibility of meeting the energy needs of Buguma a small
community in the Niger Delta Region in a sustainable manner has been
explored and presented. The primary goal of this work will be on the
potentials of vast untapped renewable energy sources in Buguma. From the
discussions presented in this work, it is imperative to select and
combine the available renewable energy resources carefully. This process
must be planned and executed holistically to ensure that the unmet power
needs in Buguma and possibly other developing communities can be
addressed through a standalone system. The design and installation of a
standalone system which can match the energy needs of Buguma and any
other developing communities that are far from the existing national
grids have been recommended. |
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Title: |
Design of circular patch antenna with stairs and slits for wireless
application |
Author (s): |
Suneel E. and Prabhakara Rao B. |
Abstract: |
Present days most of the equipment needs tiny and comfortable for easy
usage. In this paper a compact circular patch antenna designed with CPW
feeding with feed without contact with the radiating patch, known as
capacitive loading, which is penetrated inside the patch is presented.
Antenna without stairs and slits exhibits 62.7% bandwidth
(4.7GHz-9GHz).And in modified proposed design, stairs and slits are
incorporated in the radiating patch exhibits dual band for WiMAX (3.3
GHz-3.7GHz) and WLAN (5.725-5.825GHz) applications. In addition to this
direct short range communication (DSRC) frequency range also achieved. |
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Title: |
Processing, mechanical characterization and its tribological study of
discontinuously reinforced Caryota Urens fiber Polyester composites |
Author (s): |
Raviraj Shetty, Ramamohan Pai, Augustine B. V. Barboza and Viral
Pankajkumar Gandhi |
Abstract: |
The awareness in plant fiber-reinforced polyester composite materials is
increasingly emerging in manufacturing applications and vital
exploration. They are inexpensive, absolutely or somewhat biodegradable
and recyclable. Plants fibers from sisal, kenaf, pineapple, ramie,
bamboo, flax, cotton, hemp, jute and banana has been mostly used as the
reinforcement for composites due to its unique properties such as
obtain ability, renew ability, low density and price used for the
manufacturing of composites. The plant fiber composites are more
environmentally friendly and are used in ide variety of applications
such as transportation, military, building construction and packaging.
In this presented paper processing ,mechanical characterization and its
tribological study of new class of Caryota Urens fiber reinforced with
Polyester composites has been processed and investigated. |
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Title: |
Electrolyte panel tests: An information system for registration and
consultation |
Author (s): |
Albeiro Cortes Cabezas and Yamil Cerquera Rojas |
Abstract: |
This article presents an implementation of an information system to
optimize the process of performing electrolyte panel tests for the
hospitals in Huila, Colombia, in order to improve the organization of
the results and access to them. In the implementation, the HL7 standards
set were used as a guide to achieve good interoperability and to make
the system scalable. Access to test results can be done through any web
browser and any device due to a responsive web design was used. The
information system allows access to the data of patients and it is
possible to export information from the database to obtain different
statistics. Spring Framework was used to design the information system,
which provides a complete programming and configuration model for
modern, Java-based enterprise applications on any type of deployment
platform. |
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Title: |
Least cost routing algorithm with the state space relaxation in a
centralized network |
Author (s): |
Y. J. Lee |
Abstract: |
This paper aims to present the least cost algorithm finding loop routes
between a central node and a large number of end-nodes in the
centralized network. End-nodes request service on the loop route
originated from a central node. Demands at end-node are deterministic
and distance matrix is given. We find a set of minimum cost loops to
link end-nodes to a central node satisfying the service requirements at
end-nodes. In this paper, we propose a heuristic algorithm which first
generates possible routes by applying the space relaxation, and then
finds a set of loop routes through matching. The proposed algorithm is
easy to implement and enable us to obtain the solution regardless of
network configuration in the short computation time for the small
network. The computation comparison with previous algorithms is also
presented. Our algorithm can be applied find the broadcasting loops in
centralized network. |
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Title: |
Magnetic field effect on compression ignition
engine performance |
Author (s): |
Hayder J. Kurji and Murtdha S. Imran |
Abstract: |
Internal combustions engine significantly relies on the complete
combustion of the air-fuel mixture that means fewer emissions and
results with higher efficiency. This work studied fuel ionization by
using a magnetic field which will make sure better combustion. The
liquid fuel converts into fine particles by using fuel injector. So this
work is an experimental study showed the impact of magnetic field on
compression ignition engine performance. The engine speed was different
from (1000 to 2500) rpm without and with using magnetic field into
changed intensity which has (7000, 9000 and18000) Gauss. The magnetic
field was connected to the outer surface of inlet fuel pipe in the
appropriate position previously fuel injection pump. The experimental
outcomes include a reduction in the fuel consumption in compression
ignition engine was found up to (15.71%), brake specific fuel
consumption up to (15.71%). The exhaust gas emissions presented a
reduction almost by (10.25%) of CO, (7.40%) of NOX and (29.82%) of HC,
but increasing CO2 emission by (33.04%). |
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Title: |
Implementation of Doppler radar with OFDM
waveform on SDR platform |
Author (s): |
Irfan R. Pramudita, Puji Handayani, Devy Kuswidiastuti and Gamantyo
Hendrantoro |
Abstract: |
A Doppler OFDM radar system is aimed at obtaining radial velocity and
distance detection results from the target. This paper reports the
implementation of a Doppler OFDM radar system on an SDR platform. The
design of the radar system with mathscript is fed into LabVIEW
Communication serving as a processing software. The system uses USRP
NI-2943R as a device for generating and receiving OFDM Doppler radar
signals that work in the S-Band. The test results show that to improve
the detection result the number of sub carriers and OFDM symbols
generated must be taken into account. From the test, relative errors of
5.6% for detection of radial rate and of 16.8% for detection distance
are obtained with 40 MHz bandwidth. An increase in sample rate
proportional to the value of OFDM signal bandwidth on USRP greatly
affects the performance of systems. |
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Title: |
A multi metric optimized clustering for matching and ranking of web
services |
Author (s): |
K. Meenakshi Sundaram and T. Parimalam |
Abstract: |
Web services are software entities that have a well defined interface
and perform a specific task. A number of web services are composed
together to fulfill the customer requirements because single web service
not always fulfill the customer requirements. It can be grouped based on
different similarity measures. The domain-ontology-based PSO-inspired
Balanced Iterative Reducing and Clustering using Hierarchies (BIRCH)
clustering and Improved Bipartite graph (IBG), determines the relevancy
between web services based on concept distance similarity measure. Based
on this similarity measure the web services are clustered and ranked.
The major drawback of this method is, there is no single similarity
measure is optimal for determining the relevancy between web services.
So in this proposed work, an efficient clustering method is proposed
that uses different matchers with different similarity measures to
calculate the relevancy between web services. It enhances the improved
bipartite graph based web service matching. But the different matcher
may return different clustering results, so a majority voting algorithm
called as Boyer-Moore majority vote algorithm is introduced to finalize
the clusters. After clustering the web services, the web services are
ranked based on QoS based Fuzzy clustering. Experimental results show
that the proposed method the efficiency of web service composition in
terms of accuracy, runtime, recall and precision. |
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Title: |
Evaluation of machine translation systems and related procedures |
Author (s): |
Musatafa Abbas Abbood Albadr, Sabrina Tiun and Fahad Taha AL-Dhief |
Abstract: |
Currently, the high volume of international information exchange
involves a wide range of localities. As each locality comes with its own
distinctive dialect, the need for an effective means of language
translation is becoming more and more apparent. Among the concerns of
information professionals is the capacity of an interested party to
access web information offered in an unfamiliar language. Classified
under the wide field of artificial intelligence, machine translation
(MT) is an approach related to natural language processing. The machine
translation technique involves the use of software for the conversion of
documents or verbalized information from one natural language into
another. Of late, a substantial number of procedures have been proposed
for the fashioning of an efficient MT system. While these procedures
were observed to be capable in certain areas, they were found wanting in
others. The objectives of this Endeavour are to (a) conduct a thorough
investigation on machine translation and track its progress over recent
decades, (b) examine the currently available machine translation
procedures and systems and (c) offer an assessment on machine
translation systems. |
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Title: |
Determine the optimal solution using Vogel’s Approximation
method |
Author (s): |
Sufian M. S. Al-dulaymi |
Abstract: |
Focused on communities and nations out of date and the exchange of
transport problems to solve these problems through attention to planning
for these deviations that have occurred in transportation. Where he
began to study transport planning and attempting to simulate this
problem through the use of the best way to solve the transport problems
which is a transfer of assets with similar materials (which center is
the production or marketing or other movement of goods it) to the
endings (which is the center or center of consumption demand or other
goods sent to him). The lowest costs or increase profits and less time
as possible by standing on this problem of the transport problem facing
the company under study and represent the sport through the planning
work around this problem and the best ways relationship scholastic.
Finally reached the study the best solution to solving the transport
problem of the company is: X11 equal to 2x12 equal to10X21 equal to 3X23
equal to 11X31 equal to 4. |
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Title: |
A Denial of Service attack on DHCP server and its countermeasures |
Author (s): |
Ashutosh Satapathy and Jenila Livingston L. M. |
Abstract: |
Today, Internet is playing a major role for providing education in
institutions to increase productivity in industries. To provide
flexibilities and reliabilities in internet services, different network
components are used. DHCP server is one of the components, used to
assign IP addresses to client dynamically. Increasing the number of end
machines not only provide benefit to organization but also make those
susceptible to attack. Denial of Service attack is one of the common
forms of attack used to prevent services to end users/ machine. This
paper presents a way to perform DHCP Denial of Service attack using
VMware Workstation. It also focuses the counter measures to prevent this
attack. |
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Title: |
Android application in food ordering system |
Author (s): |
Ann Janeth Garcia, Danielle Jaye Agron and Wansu Lim |
Abstract: |
Due to the fast phase lifestyle nowadays, it is truly a setback to spend
a lot of time in queuing to the traffic encountered in ordering food on
school cafeteria. The researchers develop “cAPPeteria”, a food ordering
application where the users can directly order through, customize the
food quantity, confirm order and generate a one-dimensional barcode on
device A, controlled by the user, then the simulated code is scanned
through device B, which will scan and decode the information encrypted
to the image from device A. Improving the existing wireless food
ordering system limits the possible complication faced on connecting to
an internet based server thus increasing mobility and control to the
user. |
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Title: |
Comparative study on automation of gear modelling using
CATIA V5 (KBE) –VBA
approach |
Author (s): |
Aamani P. and T. N. Valaramathi |
Abstract: |
The aim of this project is to work on automated modelling system for
different types of gears with a new way of solving modelling design
problems with in the CAD environment by using knowledge based
engineering from the conventional design procedures to improve gear
design phase in an industry. Computer aided design is an important
industrial art extensively used in many applications including
automotive, shipbuilding, aerospace industries and many more. Knowledge
based engineering (KBE) has become a practical method of visualizing
manufacturing cost and enabling product analysis by simulating product
development activities in design for manufacturing support tools. Any of
the mistake in the design phase may result in to very high losses
associated in the manufacturing investments. To reduce the development
cost, it may be worthy to focus on the design phase of product
development. By using CATIA V5 model of internal gear and external
wobble gears have been created and then imported in ANSYS workbench for
analysis. Static structural analysis has been conducted for both the
gears by using ANSYS .The values of maximum stresses from structural
analysis are compared with theoretical calculation. It is observed that
90% time will be reduced by using this automated gear designing and also
chance of errors also reduces. A system has been developed to fill in
the gap between design engineers and computational experts when
analyzing product development process. |
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Title: |
Numerical methods performance optimization in electrolytes properties
modeling |
Author (s): |
Dmitry Potapov |
Abstract: |
A global optimization algorithm for the residual function is considered
in application to the cluster model of electrolyte aqueous solutions. A
method for finding a set of parameter estimates is developed and
criteria for adequate solutions subset identification are proposed. Due
to the high computational intensity of the minimization procedure, a
performance optimization technique of the proposed method is described. |
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Title: |
A new engineering approach to evaluate the
dielectric properties of materials in K-Band frequency using rectangular
waveguide measurements |
Author (s): |
Rachid Lahbibi, Hassan Ammor and Hassan
Elmajid |
Abstract: |
A new
engineering approach for measuring dielectric properties of materials at
K-Band frequencies is developed. The proposed approach is based on
applying the rectangular waveguide measurements. The material sample
under test (MSUT) is loaded into the K-band rectangular waveguide WR42.
The present method is comprised of two parts. The first one concerns the
extraction of Scattering Parameters using Ansoft HFSS Solver, then
calculate them as a function of the complex permittivity adopting
Transmission Matrices (direct problem). The square sums of errors between
the simulated and calculated S-parameters are minimized using a
nonlinear optimization algorithm. The second part aims to extract the
complex relative permittivity from the simulated S-parameters (inverse
problem ). An innovative algorithm is developed to look for complex
relative permittivity. A comparative study is elaborated, the Nicholson
Ross method (NRM) is used to determine the complex relative permittivity
of the tested materials in order to compare them with the results
obtained using our method. The percentages of errors between the values
obtained by NRM and those achieved using our technique are assessed and
minimized. The achieved results have demonstrated a good agreement. |
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Title: |
Prediction the thermal and hydrodynamic
performance of nano fluids flow in a tube coupled with double twisted
tape |
Author (s): |
Khudheyer S. Mushatet and Farah Kh.
Youssif |
Abstract: |
In
this study ,the fluid flow of the Al2O3 nano fluid in a horizontal pipe
equipped with twin twist tape insert has been numerically studied
.Different values of twisting ratio (y/w) of 2 ,4 and 6 with volume
concentration) of 0.5% and 4 % are investigated under Reynolds number
range of 5000 to 35000. The object of this project is to augment the
transfer of heat in a tube by employing the combined influence of double
twisting tape with nano fluid .The Navier – Stockes and energy equations
as well to the turbulence model are desired for modeling this physical
problem. ANSYS Fluent code is utilized to gain the results .The
numerical consequence explained that the Nusselt number (Nu) , friction
factor (f), and overall thermal performance factor raises as twisting
ratio decreases . The results also display that the twin twisting tape
more effective than a plain tube for heat transfer augmentation. This
increase is improved with increasing volume concentration. |
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