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ARPN Journal of Engineering and
Applied Sciences
June 2017 | Vol. 12 No. 11 |
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Title: |
Gaussian process approach for visually
impaired people to identify obstacles based on Euclidean distance
measure |
Author (s): |
M. Karthikeyan, Joseph Henry and K. Rajan |
Abstract: |
This
paper introduces a new portable camera-based method for helping blind
people to recognize indoor objects. Unlike state-of-the-art techniques,
which typically perform the recognition task by limiting it to a single
predefined class of objects, we propose here a completely different
alternative scheme, defined as coarse description. It aims at expanding
the recognition task to multiple objects and, at the same time, keeping
the processing time under control by sacrificing some information
details. The benefit is to increment the awareness and the perception of
a blind person to his direct contextual environment. The coarse
description issue is addressed via two image multilabeling strategies
which differ in the way image similarity is computed. The first one
makes use of the Euclidean distance measure, while the second one relies
on a semantic similarity measure modeled by means of Gaussian process
estimation. To achieve fast computation capability, both strategies rely
on a compact image representation based on compressive sensing. The
proposed methodology was assessed on two indoor datasets representing
different indoor environments. Encouraging results were achieved in
terms of both accuracy and processing time. |
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Title: |
Study of pollutant load assimilative
capacity and quality of heavy metal contamination (Pb, Cd, Hg, Cu and Zn)
in sediment and fish in Sunter River |
Author (s): |
Nunik Nurwijayanti, Etty Riani and Budi
Kurniawan |
Abstract: |
Sunter River is one of 13 rivers in DKI Jakarta. This river has a main
flow along of the river about 37km in lenght. Its head water is located
in East Jakarta meeting with Cipinang River and empties into the Jakarta
Bay, which serves as a water flow and can not be separated from human
activities. Fishes on this river are still used as food source.
Nowadays, conditions of the water quality of Sunter river was degraded
caused by various human activities occurred not only in the catchment
area but also along the river. This study aims to analyze the Sunter
River water quality, develop the pollutant load assimilative capacity (DTBP),
and reveal the level of heavy metals contamination (Pb, Cd, Hg, Cu and
Zn) in sediments and fish. Determination of the status of water quality
was conducted by using the STORET method, the calculation of DTBP by
using Mass Balance method, the determination of contamination level of
heavy metals in sediment by comparing with the quality standard of
ANZECC / ARMCANZ and CCME while the level of heavy metals contamination
in fish was done by comparing with the quality standard, such as ISO,
BPOM, WHO and the EU. This study also analyzes the determination of
bioconcentration factor (BCF) in fish. The results of this study
indicate that the quality status of Sunter River generally has been
severely polluted both by comparing to the regulation No. 82/2001 and
the .Governour Decree of Jakarta No. 582/1995. Meanwhile, DTBP for heavy
metals in Sunter River, are i.e. 0,07-0,5mg /l for Pb, i.e. 0,009-0,17mg
/l for Cd, ie 0,001-0,002mg /l for Hg, ie 0,02-0,1mg /l for Cu, and
0,06-0,5mg /l for Zn. Analysis of Pb, Cd, Hg, Cu and Zn in sediment
results in the SQG-Q values of 0.87 to 1.78 indicating that the sediment
surface in Sunter River are categorized as moderate impact to highly
impacted potential for observing adverse biological effects to living
things around it. The level of heavy metals contamination of Pb, Cd and
Cu in Clarias sp, Anabas testudineus and Channa striata has exceeded the
quality standards established nationally and internationally. The BCF
values for Hg were lower cumulative, Zn metals were generally
cumulative, while Pb, Cd and Cu moderate cumulative to highly
accumulative for all species of fish. |
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Title: |
Firefly Optimization based DG placement
for improving voltage profile of distribution networks |
Author (s): |
Abhiraj T. K., Bos Mathew Jos and
Aravindhababu P. |
Abstract: |
This
paper presents a Firefly Optimization (FFO) based solution methodology
for optimally placing DG units with a view of improving the voltage
profile. FFO, inspired by social flashing behavior of fireflies, is one
of the evolutionary computing models for solving multimodal optimization
problems. The DG placement problem is formulated as an optimization
problem and the FFO based solution methodology is tailored to optimize
the node locations and DG ratings with a view to obtain the global best
solution. The developed methodology is tested on a 33 node distribution
networks and the results are presented with a view of exhibiting the
superiority of the developed algorithm. |
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Title: |
Power Factor Correction and THD
minimization using Interleaved Boost Converter in continuous conduction
mode |
Author (s): |
Niranjani G. and Subashini N. |
Abstract: |
A
general feature of all DC power supplies and nonlinear loads such as
SMPS and computer systems connected to the AC mains is the presence of a
diode rectifier terminated on a DC link capacitor. During this
conversion, the supply current is pulsating in nature. This leads to the
reduction in power factor and distortion in supply current. This
necessitates the use of Power Factor Correction circuits for power
electronic converters. In this work, high power factor and low harmonic
distortion is achieved with the help of Interleaved Boost Converter. The
Interleaved Boost Converter is implemented using both analog and digital
proportional integral controller. Analog controller uses average current
mode control technique with two control loops, namely a high bandwidth
inner current control loop to have sinusoidal wave shape for input
current and a low bandwidth outer voltage control loop to obtain a
regulated output voltage. Digital controller uses Digital Pulse Width
Modulation technique for the control system design. Mathematical
modelling of Interleaved Boost Converter and stability analysis of the
converter is carried out. The proposed Analog and Digital controller
helps to obtain a regulated output voltage against disturbances in load.
The simulation schematic covering the power and control circuit has been
developed using MATLAB/Simulink software and the corresponding results
are obtained. It is observed from the results that the THD of input
current is reduced effectively and power factor is also improved. |
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Title: |
Emissions study on copper oxide catalytic
converter fitted diesel engine |
Author (s): |
S. P. Venkatesan, B. Venusai, G. Sanjeeth,
K. Saikarthik and A. Sivakrishna Reddy |
Abstract: |
The
toxic gases emitted from diesel engines are more than petrol engines.
Predicting the use of diesel engines, even more in future, this system
is developed and can be used to minimize the harmful gases. Toxic gases
include NOX, CO, HC and Smoke which are harmful to the atmosphere as
well as to the human beings. The main aim of this work is to fabricate
system, where the level of intensity of toxic gases is controlled
through chemical reaction to more agreeable level. This system acts
itself as an exhaust system; hence there is no needs to fit separate the
silencer. The whole assembly is fitted in the exhaust pipe from engine.
In this work, catalytic converter with copper oxide as a catalyst, by
replacing noble catalysts such as platinum, palladium and rhodium is
fabricated and fitted in the engine exhaust. With and without catalytic
converter, the experimentations are carried out at different loads such
as 0%, 25%, 50%, 75%, and 100% of maximum rated load. From the
experimental results it is found that the maximum reduction is 32%, 61%
and 21% for HC, NOx and CO respectively at 100% of maximum rated load
when compared to that of without catalytic converter. This catalytic
converter system is cash effective and more economical than the existing
catalytic converter. |
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Title: |
Development of an automobile robot system
model based on soft computing in an unsteady environment |
Author (s): |
Dmitry Akimov, Petr Krug, Andrey Ostroukh,
Ekaterina Matiukhina and Valery Ivchenko |
Abstract: |
This
publication is dedicated to development of a simulation model of
controller for an automobile robot as part of a convoy, based on soft
computing. During the work a reference adaptive control model was
developed, the rules of constructing the fuzzy rule base were described,
an optimizer of the number of features of fuzzy linguistic variables
based on soft computing was proposed. The application of fuzzy model
rule base allows controlling the assigned parameters of an automobile
robot under uncertainty and rapidly changing external environment (loss
of the front automobile robot, automobile robot system failure, road
obstacles). A system of automobile robot modelling was conducted, the
efficiency of the fuzzy rule base using genetic algorithms to control
the direction and distance was shown. |
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Title: |
The impact of the operation planning of
power plants for environmental emissions in South Sulawesi |
Author (s): |
Ansar Suyuti, Ikhlas Kitta and Yusri Syam
Akil |
Abstract: |
Plan
provision of power generation by the Indonesian government will be
dominated by power plants fuelled power plant coal type, where the
process of electricity production at the plant are coal combustion
process that produces electrical energy and also the ash and smoke. Ash
and smoke is a potential environmental pollution. Therefore, this study
aimed to get a prediction of the amount of the value of emissions due to
the operation of coal power plant in South Sulawesi. |
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Title: |
Finite element investigation of dome-like
structures |
Author (s): |
Moayyad Al-Nasra and Mohammad Daoud |
Abstract: |
Domes
have been used extensively in long span public structures. The dome
structures reflect power and project sense of community. Building domes
require experience, time and great effort. Dome like structures can be
easily built at relatively lower cost. Pyramid and conical shape roofs
are some examples of the dome like structures considered in this study.
The pyramids are of square base or rectangular base, while the conical
shape roofs are of circular base. Domes are very efficient in supporting
loads, taking advantage of the strength of the building material in
compression. Flat slabs can shift its behavior to dome like behavior by
increasing the central rise. This process converts the two dimensional
structural element into three dimensional structural element. The slab
will shift its behavior from plate element to shell element, depending
on the slab thickness and the value of the central rise. The increase in
the central rise up to certain values, converts the flexural stresses
into compressive stresses. Most of the building materials are stronger
in compression compared to tension or flexure, which makes the domes and
the dome like structures efficient structures. Square and circular slabs
are used in this study, where the central rise is increased gradually to
study the effect of the central rise on the central deflection and the
maximum stress. Finite element model is developed to study the effect of
the slab thickness on the maximum Von Mises stress at a given value of
the central rise. The slabs are subjected to uniformly distributed dead
loads and live loads. |
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Title: |
Study and optimization of a
contra-rotating propeller hub for convertiplanes: VTO and
hovering |
Author (s): |
Luca Piancastelli, L. Fiumana and Stefano
Cassani |
Abstract: |
Contra-rotating propeller seems to be a convenient solution for the
tilt-rotor convertiplanes of the V22/BA609 type. With this propeller
arrangement the rotor diameter is significantly reduced. In the case of
an aerial vehicle similar to the V22 the rotor diameter can be reduced
from 11.6m down to 7m. In this case the emergency horizontal landing is
possible by giving a small amount of dihedral to the wings (8 DEG). This
is easy to implement due to the absence, in the contra-propeller
version, of the interconnecting transmissions between the two rotors at
the wingtips. The V-22/BA609 configuration has a high roll polar moment
of inertia with roll control implemented through differential rotor
thrust. VRS is then particularly critical. The contra rotating propellers
are less subject to the roughness zone of the VRS as demonstrated in
wind tunnel tests. Furthermore, the airfoil chosen (NACA 0006) is
particularly suited to have a smooth transition from the propeller
working state to the windmill brake state. The stability of the
contra rotating propellers and the possibility of the two hubs to rotate
at different speed in windmill brake state, make it easier to enter into
a stable autorotation state. The autogyro (autorotation) and the
airplane mode landing are fundamental requirements for the certification
of V22/BA609 as civilian transport. To make the certification easier it
is possible to identify three flying modes for the aerial vehicle: VTOL
with the hubs tilted vertically, STOL with the hubs at an intermediate
angle and aircraft (horizontal hubs) for cruise. The transition can be
restricted to most favorable conditions. The turbo shafts may have two
working conditions: in the cruise one the maximum pressure (and maximum
efficiency) of the reference Brayton cycle is necessary. This pressure
is achieved with the contribution of the air intake. In this mode the
propeller tip speed can be near 0.5M. The lower disk diameter of the
contra-rotating propeller guarantees better propulsion efficiency. The
VSTOL mode is with maximum power, with lower maximum pressure in the
turbo shaft and with higher propeller tip speed (0.91M). The hub can be
simplified with the Advancing Blade Concept (ABC) that requires only the
blade feathering DOF. The upper and lower rotors require about 1 DEG of
difference in AOA (Angle Of Attack) in most conditions. The gyroscopic
effects are neutralized and the force necessary to tilt the rotors is
much lower than the single rotor solution. This assures also better
handling in most flying conditions. Finally, the
two-contra-rotating-rotors-tilting mechanism is not more complicated
than the single rotor one. |
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Title: |
Design and implementation of a prototype
to track the bus route of the Antonio Narino University-campus
Villavicencio |
Author (s): |
Diego F. Sendoya-Losada and Eddyer Samir
Triana |
Abstract: |
This
project focuses on the design and implementation of a prototype to track
the bus route of the Antonio Narino University - campus Villavicencio.
The prototype was developed from a Web application for tracking and
locating the geo-referenced position of system actors (drivers and
members of the educational community); and a mobile application, which
allows users to know vehicle location data and an estimate of the actual
travel time. Applying and evaluating the developed prototype, it was
possible to establish that it is functional. The service provided to the
users is efficient and generates a great benefit to the entire
university community. In addition, it encourages the use of the
transportation system because it is easier to access the service,
without having to wait a long time in the indicated points and avoiding
inconveniences such as the loss of travel and additional costs to go to
the University. |
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Title: |
Architectural models for fault tolerance
within clouds at infrastructure level |
Author (s): |
J. K. R. Sastry, K. Sai Abhigna, P. Praful Kumar
and D. B. K. Kamesh |
Abstract: |
Cloud
computing technologies are being used aggressively these days to enable
use of shared resources. However the confidentiality and availability of
the data stored on the cloud is still a serious problem. In a cloud,
several faults do occur which adversely hamper the continuous
availability of service to the end customer. Faults could be hardware,
software or network related. Infrastructure installed on the clouds does
get affected due to all kinds of faults. The infrastructure supported on
the clouds must be made available to the clients even during the
occurrence of the faults to provide continuous service. In this paper
architectural models have been proposed using which the infrastructure
related services are made available to the clients even during the
occurrence of the faults making the entire process of cloud computing
reliable and effective. |
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Title: |
Numerical and volumetric frequency of
sprinkler drop-size from water distribution radial curve:
Mathematical modelling |
Author (s): |
Friso D. and Bortolini L. |
Abstract: |
An
analytical approach to correlate the travel distance of the drops from
the irrigation sprinkler with the drops water volume was studied. Such
approach was used along with a simplified ballistic model, able to
define the trajectories of the drops produced by the nozzle of the
sprinklers, to develop a rapid and simple method to obtain sprinkler
drop-size spectrum from the water distribution radial curves. |
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Title: |
Blood Lead and Cadmium level among fuel
station workers in Semarang city |
Author (s): |
Nur Kusuma Dewi and Ari Yuniastuti |
Abstract: |
Motor
vehicles are the largest source of heavy metal pollution in the
neighborhood. Lead (Pb) and cadmium (Cd) are toxic heavy metal and
dangerous that can poison the environment and have an impact on the
entire system in inside the body. This study aims to determine the level
of lead and cadmium in blood of fuel station workers in Semarang
city. This study used analytic cross sectional survey design which was
conducted on may 2015. In total there are 52 subjects in this study. The
blood samples were collected by the author. The analysis was conducted
at Food and Nutrition Centre, Gadjah Mada University Yogyakarta. Blood
lead and cadmium level was measured using Lead and Cadmium by Blood Test
Kits. The average blood lead and cadmium levels was 14, 23± 2, 54 µg/dL
and 3, 22±5,24µg/dL, respectively. The conclusion that the blood lead
levels among the fuel station workers in Semarang City was 92,3% still
within the normal limit. The blood cadmium levels among the fuel station
workers in Semarang City was 95,1% still within the normal limit. |
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Title: |
A model of continuous linear electron
accelerator |
Author (s): |
Vladimir Kuz'mich Shilov, Aleksandr
Nikolaevich Filatov and Aleksandr Evgen'evich Novozhilov |
Abstract: |
The
scale of the human economic activity and the specificity of advanced
technological processes used in industry, especially in the sectors such
as chemistry and metallurgy, necessitate special measures to protect the
environment. The environmental protection, the careful use and
reproduction of its diverse resources, improvement of the human
environment is a major part of the humanity survival program in the
global world. The problem of protection of the environment and rational
use of natural resources becomes more and more acute and urgent every
year. Currently, linear electron accelerators operating in pulsed mode
are used for practical purposes. Such accelerators have a small beam
power and cannot be effectively used in industry and for the
environmental protection. To overcome this drawback, one can create a
continuous linear electron accelerator based on a biperiodic
decelerating structure, which operates in the standing wave mode. The
design of such an accelerator is simpler as compared with the resonant
pulse accelerator, because the need is eliminated for a modulator of the
HF energy source. The article presents the results of the conducted
research and the calculations of a model of linear electron accelerator,
which demonstrate the possibility of creating such a continuous
accelerator for using in industry and for environmental protection. |
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Title: |
Kinematics of two simple planetary gears |
Author (s): |
V. I. Nekrasov, O. O. Gorshkova, R. A.
Ziganshin and A. A. Akchurina |
Abstract: |
Multi-speed planetary gear transmissions (PGTs) have a limited
application. Two and three-speed planetary gear transmissions were used
in GGT (hydro mechanical transmission); in recent years the number of
gears in GGT has been growing. With the increase of the number of gear,
the complexity of the PGT is growing significantly. The PGT with two
degrees of freedom for 8 gears requires 24 gearwheels and for 16 gears
it requires 48 gearwheels. This article describes the structural methods
of realization of the kinematic capacities of two simple three-link
planetary gears connected in series. |
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Title: |
Geophysical prospecting of groundwater in
laaouamra, Morocco, using VES method and GIS |
Author (s): |
A. El Alami, L. Ouadif, K. Baba, A.
Akhssas, L. Bahi and M. D. Hasnaoui |
Abstract: |
The
bas Loukkos basin is characterized at the same time by impervious
overburden materials and semi-arid climate that are two factors limiting
the renewal of the groundwater resources. In this space, we found the
R’Mel aquifer formation, which are one of the main water supplies in the
region. It corresponding geological facies are characterized by spacio-temporal
change. In this work, a Special focus was given to the aquifer systems
in the R’Mel coastal area, including dune systems formed in the
Quaternary epochs. By combining drilling lithological data, Geographic
Information System tools, and electrical investigations results, It was
possible to determine the lateral extension of the Plio-Quaternary
resistant sandstone which can constitute a potential reservoir of water
supply one the one hand, on the other hand the spatial evolution of the
coastal dune systems. |
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Title: |
Gray code (n, k, p) based pixel
substitution and Affine transform based Gray code bit plane permutation
technique for secure image encryption |
Author (s): |
Sudeept Singh Yadav, Yashpal Singh and S. K.
Sriwas |
Abstract: |
Image
encryption techniques are used to prevent image from unauthorized access
and it play a very important role to provide confidentiality or privacy.
To make image encryption technique more robust for various applications
in imaging systems, we combined pixel permutation and pixel substitution
techniques along with the concept of (n, k, p) Gray code .The algorithm
is based on (n, k, p) gray code bit-plane decomposition and Affine
transform based each bit plane pixel permutation. (n, k, p) Gray code
transforms based bit plane shuffling and pixel scrambling provides
robustness in image encryption. The experimental results have shown that
the presented new encryption algorithm provides excellent performance in
image encryption. |
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Title: |
Model of genetic fuzzy artmap classifier (GFAM)
for gastric cancer data classification |
Author (s): |
Thara Lakshmipathy and Gunasundari
Ranganathan |
Abstract: |
Data
mining is the evergreen research area in the field of computer science.
Its artefact applies in the area of healthcare, decision support and
expert systems. Soft computing plays a significant role in design and
development of predictive and descriptive data mining applications. This
research work presents a fuzzy adaptive resonance theory classifier with
the support of genetic algorithm for gastric cancer data classification.
The metrics such as accuracy, hit rate and elapsed run time are chosen
for performance evaluation. From the results it is evident that the GFAM
attains better performance. |
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Title: |
Experimental and numerical investigation
the effect of mass flow rate on the heat transfer flat plate solar
collector with using nano fluid |
Author (s): |
Zahraa basim Abdel-Mohsen and Abbas Sahi
Shareef |
Abstract: |
A
solar collector is the major component of a solar water heating system.
The heat energy from the solar radiation was utilized in the flat-plate
solar collector can be enhanced by using nanofluid. This work
investigates the experimentally and numerically the effect (ZnO-water)
nanofluid on heat transfer flat plate solar collector. The volume
fraction was used (0.5) % for three flow rates (1, 2 and 3) lpmand the
particle size was 20 nm. The experiments are conducted in Karbala, Iraq
with the latitude of 32.6 o. The numerical is applied by ANSYS
15software.The result shows that the maximum the outlet-inlet
temperature difference was obtained at (0.5 vol. %) nanofluid for (ZnO-water)
at the peak value curve (150C) at a flow rate (1 lpm while in case of
water the maximum the outlet-inlet temperature difference was (10.2 oC).
Also, there was a good convention between the experimental and CFD
results for outlet temperatures where the maximum error was (8.4%). |
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Title: |
Optimization of main parameters of
gearboxes with three gear trains |
Author (s): |
Vladimir Ivanovich Nekrasov, Nikolai
Stepanovich Zakharov, Ruslan Albertovich Ziganshin, Oksana Olegovna
Gorshkova and Georgiy Nikolaevich Shpitko |
Abstract: |
Efficiency of GB design can be conveniently estimated by three relative
parameters on the basis of (n) – the number of forward gears: 1)
Coefficient of gear usage intensity equaling to ratio of the number of
forward gears to the number of involved gearwheels = n/g; 2) Coefficient
of reduction equaling to ratio of gear numbers to total
reduction Kb =
n/PS; PS is the total reduction of GB, it is determined using ray path
plot and equals to the sum of ray projections of gear couples onto the
axis of gear ratios on logarithmic scale: the sum of steps q; 3)
Coefficient of layout efficiency equals to the sum of the two
aforementioned coefficients Kc = Ka + Kb. This article discusses
optimization of main parameters of GB (gearboxes) with three trains of
forward gears in the case of conventional layout and in the case of
loose placement of gears on shafts. |
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Title: |
Shock waves in a channel with a central
body |
Author (s): |
A. N. Ryabinin |
Abstract: |
Positions of shock waves in the 2D channel with a central body are
studied numerically. Solutions of the Euler equations and
Reynolds-averaged Navier–Stokes equations are obtained with
finite-volume solvers. Numerical simulations reveal a considerable
hysteresis in the shock wave position versus the supersonic Mach number
given at the inlet for in viscid gas and for viscous gas. In the certain
range of inlet Mach number, there are asymmetrical solutions of the
equations. Small change in the geometry of the channel leads to shift of
the hysteresis range. |
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Title: |
Multilevel inverter topologies for
photovoltaic power system: A review |
Author (s): |
Usman Bashir Tayab |
Abstract: |
This
paper presents a comprehensive review on three basic types of multilevel
inverters i.e., diode-clamped, flying-capacitor, and cascaded H-bridge
multilevel inverter and their variation for photovoltaic power system.
The electrical power generated form photovoltaic power system is in DC
form. Hence, it is necessary to be controlled and converted to useful
form. Inverter is a power electronic device which is used to convert the
DC power into AC form at desired output voltage and frequency.
Multilevel inverters nowadays become interesting area in field of
electric power system because it has the capability to produce staircase
AC output voltage waveform without using a bulky passive filter. The
state of art of multilevel inverter technology for photovoltaic power
system has been presented in this paper, which will be very helpful to
the researchers to trace the drawbacks in this field of research and
thereby will provide information to resolve the existing issues in the
near future. |
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Title: |
Comparative analysis of different diamond
search algorithms for Block matching in Motion Estimation |
Author (s): |
T. Bernatin and G. Sundari |
Abstract: |
Motion estimation is one of the intensive operations used to compress
the video signal in an effective manner. It gives the value of motion
vector which comes from the displacement of current frame with respect
to its reference frame. Diamond search is one of the most used
techniques for Block matching in Motion Estimation and few types which
are commonly used are diamond search algorithm, cross diamond search
algorithm, modified cross hexagon diamond search algorithm, new cross
diamond search algorithm. This paper studies the number of search points
used by these algorithms and its effectiveness in terms of time, speed
and complexity. |
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Title: |
Sensitivity analysis of traffic accidents
causes in Sultanate of Oman |
Author (s): |
Ahmad M. Abu Abdo |
Abstract: |
Traffic accidents numbers and fatalities and injuries resulting from
these accidents are increasing in an alarming rate, especially in the
Sultanate of Oman. This paper focuses on the verification of the factors
affecting numbers of traffic accidents and fatalities and injuries
resulting from traffic accidents in the Sultanate of Oman. To achieve
the goal of this study, sensitivity analyses via Tornado Plots and
Extreme Tail Analysis were deployed to identify main affecting factors,
which would assist decision makers to focus their efforts on the
reducing traffic accidents. Results have shown that Failure to Follow
Traffic Rules, Speeding, and Reckless Driving were ranked the highest
contribution factors to traffic accidents and fatalities and injuries
from these accidents, while Weather Condition, Drunk Driving, Fatigue,
and Sudden Stopping had very low effect on traffic accidents. Finally,
recommendations were proposed to Omani decision makers for
implementation in current and/or future policies. |
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Title: |
On selection of user interface dynamically
for displaying data mined results |
Author (s): |
J. K. R. Sastry, M. Jyothsna Sai Sree, T. Mani
Dedeepya and D. B. K. Kamesh |
Abstract: |
Many
types of mining such as classification mining are being used to discover
knowledge hidden in the data. Several methods exist such as mining based
on decision tree for carrying a particular type of mining. Each type and
method of mining produces different types of mined results when applied
on a different database. The mined results also greatly varies when
parameters which are used for carrying mining varies. One the most
challenging issue is to display the mined results such that the user
quite understands the results and be able to take decisions that help
their business. Choice of a proper interface for displaying the results
is most critical for the user to understand and use the mined results
for their own decision making. In this paper a method has been presented
that helps in finding most appropriate User interface dynamically at
runtime that best suits the actual mined result and use the same for
displaying the mined results. |
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Title: |
The optical-electronic device for quality
control of engine oil |
Author (s): |
V. V. Semenov, Yu. G. Astsaturov, Yu. B.
Hanzhonkov, D. Yu. Denisenko, M. E. Denisenko, Yu. I. Ivanov, V. V. Ignatyev, V. I. Finaev and O. B. Spiridonov |
Abstract: |
The
mode and the device for the analysis of engine oil impurity of the
internal combustion engine disperse particles are given in this paper.
Also theoretical justification of development of the device realizing
the offered opto-electronic method of engine oils analysis is given.
Optical and ultrasonic methods of the analysis of engine oils impurity
in the device for increase in informational content of data are used. |
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Title: |
Influence of in-vehicle time of private
cars to public transports in the choice of river transport modes |
Author (s): |
Iphan F. Radam, Bambang Haryadi and Bagus
H. Setiadji |
Abstract: |
This
study aims to look at the extent to which the differences in-vehicle
time between private cars and public transports in influencing the
probability of choice of public transport on rivers. Emphasizing the
river's public transport is due to the policy of the local government to
revive this form of public transport as the city transportation’s icon.
One of the habits to increase the choice of one mode is to improve its
services and appeal, when one of the causes why trip makers are more
likely to use private cars since the time of the vehicle took is faster
than public transports. An analysis using the approach of multinomial
logit models that competed with other modes of public transports is a
river-based public transports, land public transports, and private cars.
From the analysis’ results obtained, it can be concluded that
river-based public transports will be able to be wanted and return to
compete with private cars, not only by improving the image and services
but also one other factor that must be considered which is, in-vehicle
time (IVT) from private cars toward public transportation. If the
condition of the river public transports has been improved and enhanced,
meaning their image and the service, then with the fastest travel time
and with the same fare, the probability of choice will be increased by
0.20 on the existing condition (the IVT of private cars is faster). When
the IVT of private cars is the same, then the probability of choice will
be increased to 0.38, and increase again to 0.43 when the IVT of private
cars is longer than what public transports has. Of the three conditions
of the IVT of private cars, river-based public transport showed a
balance of choice with a private cars when the IVT of private cars is
the same to public transports. |
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Title: |
A multi-objective optimization methodology
applied to the low-power CMOS operational amplifiers |
Author (s): |
E. Srinivas, N. Balaji and L. Padma sree |
Abstract: |
This
paper presents a novel design methodology for optimizing the performance
of CMOS op-amp topologies by using Multi-Objective optimization
Methodology. This methodology is used to find the optimal transistor
dimensions in order to acquire operational amplifier performances for
analog and mixed signal circuit applications. The goal is to
automatically determine the device size in order to meet the given
performance specifications while minimizing the design time, Area, power
and cost function. This strongly suggests that the approach is capable
of determining the globally optimal solutions to the problem. Accuracy
of performance prediction in the sizing program (implemented in MATLAB)
is maintained. These operational amplifiers were simulated by using
cadence virtuoso spectre circuit simulator in 0.18µm CMOS technology
with power supply ±1.8v. In this paper six performances are considered
i.e.., Open loop Gain (Av), Unity gain bandwidth (UGB), Phase Margin (PM),
Slew rate (SR), Area A) and Power consumption (Pc). Finally a good
agreement is observed between the program optimization and electric
simulation. |
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Title: |
SBS-SDN based solution for preventing DDoS
attack in cloud computing environment |
Author (s): |
T. V. Sindia and Julia Punitha Malar Dhas |
Abstract: |
Cloud
computing is an emerging technology that provides several services to
the cloud users. However, the adversaries intend to make certain
services unavailable by triggering DDoS attacks. Hence, a system to
prevent or detect DDoS attack is the need of the hour. This paper
proposes a SDN based solution to prevent DDoS attack in the cloud
computing environment. In order to achieve the goal, the proposed
approach is decomposed into knowledge gaining and operational phase. The
knowledge gaining phase intends to extract features from the samples and
the entropy of the destination address is computed. The variance of the
entropy is computed and the feature representatives are formed. The
median of the feature representatives is calculated and is fixed as
threshold. In the operational phase, the system can classify between the
normal and the DDoS attack scenarios by computing Euclidean distance
between the test sample feature representative and the knowledge base.
The performance of the proposed approach is found to be satisfactory in
terms of detection rate and detection time. Additionally, the proposed
approach shows the least FNR and FPR, when compared to the existing
techniques. |
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Title: |
A CRT based robust image watermarking
using Discrete T-Chebyshef Transform |
Author (s): |
J. L. Divya Shivani and Ranjan Senapathi |
Abstract: |
This
paper presents a Chinese Remainder Theorem (CRT) based digital
watermarking technique in Discrete T-Chebyshef Transform (DTT) domain
which is robust to several common attacks. The proposed technique is
compared with the recently proposed CRT based Discrete Cosine Transform
(DCT) domain technique. Extensive simulation experiments show the better
robustness to the common image manipulations such as brightening,
sharpening, cropping, noise and compression. At the same time, the
proposed technique successfully makes the watermark perceptually
invisible. Better Tamper Assessment Function (TAF) value of 30-40% is
achieved in comparison to 30-40% in DCT and 10-40% on Singular Value
Decomposition (SVD) techniques. Similar to DCT domain watermarking, it
is possible to maintain the imperceptibility and low TAF for various
values by doubling the capacity of the watermark. |
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Title: |
GA-Based optimal positioning of mobile
sink in Wireless sensor network |
Author (s): |
K. Suganthi and B. Vinayagasundaram |
Abstract: |
A
primary challenge faced by Wireless sensor networks is to transmit large
chunks of data by sustaining the limited energy available. We propose to
reduce the energy consumption of data-intensive WSNs using cheap mobile
relays. Our proposal differs from previous work in that we integrate the
energy consumption due to both mobility and wireless transmissions into
an optimization framework. This framework consists of three main
aspects. The first procedure computes an optimal routing tree with an
assumption that no nodes can move. The second procedure involves adding
mobile nodes using genetic algorithm (GA). The third procedure improves
the network by optimizing the routing tree. This algorithm links up to
an optimal position for each node, given that the topology of routing
tree does not change. Our simulation results prove that our proposal
significantly surpasses the existing solutions. |
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Title: |
No-Reference image quality assessment for
contrast-distorted images using statistical features in Curvelet domain |
Author (s): |
Ismail T. Ahmed and Chen Soong Der |
Abstract: |
Most
No-Reference Image Quality Assessment (NR-IQA) metrics are designed for
the quality assessment of images distorted by compression, noise and
blurring. Few NR-IQA metrics exist for Contrast-Distorted Images (CDI).Reduced-reference
Image Quality Metric for Contrast-changed images (RIQMC) and NR-IQA for
Contrast-Distorted Images (NR-IQACDI) are the state-of-the-art IQA
algorithms for CDI. Room for improvement exists, especially for the
assessment results using the image database called TID2013. The current
NR-IQACDI uses features in spatial domain. This paper proposes the use
of the same statistical features but in Curvelet domain, which is
powerful in capturing the multiscale and multidirectional information of
an image. Experiments are conducted to assess the effect of using
statistical features in Curvelet domain. The experiment results are
based on K-fold cross validation with K range from (2 to 10).The
statistical tests indicate that the performance using selected
statistical features in the Curvelet domain are better than that of the
NRIQACDI. The use of other statistical features and selection methods
should be further investigated to increase the quality of prediction
performance. |
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Title: |
Optimization of operating parameters by
response surface methodology for malachite green dye removal using
biochar prepared from eggshell |
Author (s): |
Mardawani Mohamad, Tan Chia Wei, Rosmawani
Mohammad and Lim Jun Wei |
Abstract: |
This
study focuses on the adsorption of malachite green (MG) dye using
eggshell biochar as adsorbent. Agricultural waste of eggshell turned
into low cost and eco-friendly biochar adsorbent was studied. Central
Composite Design (CCD) was successfully employed for the experimental
design and results analysis. The effect of initial concentration (30-70
mg/L), adsorbent dosage (0.5-2.0 g) and contact time (5-20 min) on the
percentage of malachite green (MG) dye removal was investigated and
optimized using response surface methodology (RSM). From the analysis of
variance (ANOVA), the contribution of quadratic model is significant for
the response in this study. The results showed that the response of dye
removal was significantly affected by the synergistic effect of the
linear term of initial concentration, adsorbent dosage and contact time
and the quadratic term of initial concentration. The optimum removal
efficiency of 92.39% was obtained with the optimal operating conditions
of initial concentration of 70 mg/L, adsorbent dosage of 1.99g and
contact time of 16.25 minutes, and desirability of 0.998. Good agreement
was found between both the experimental results and predicted values and
the suitability of the model was confirmed to predict the adsorption
process. Eggshell biochar was found to be effective in removing MG dye
from aqueous solution. |
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Title: |
The influence of high frequency system of
standing wave electron linear accelerator on beam output properties |
Author (s): |
Vladimir Kuz'mich Shilov, Aleksandr
Nikolaevich Filatov and Aleksandr Evgen'evich Novozhilov |
Abstract: |
This
article discusses high-frequency systems of standing wave linear
electron accelerator. One of the drawbacks of standing wave accelerators
is extended transient process in high-Q resonator sections, which leads
to insufficient beam energy at initial stage of high frequency pulse and
occurrence of medium energy spread of clusters. This spread can be
eliminated by power supply of accelerator sections and delay of
injection pulse with regard to the pulse of high frequency field. This
enables fine tuning of high-frequency energy supplied to accelerating
resonator sections upon simultaneous variation of time constant of
transient process of electric fields setup in sections. In these systems
complete decoupling of generator from high-Q accelerating sections is
achieved, the influence of current load by accelerating sections
decreases, and beam output properties are improved. |
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Title: |
Design of M-PETFF using low power clock
distribution element |
Author (s): |
A. Bakiya, M. Nithyavelam and C. Malathy |
Abstract: |
An
improved positive edge triggered flip flop (M-PETFF) is proposed for Low
power application with simpler structure, clock load and also compared
with different flip flop designs with same size of transistor including
of both input and output. The proposed work implemented in CMOS-90nm
technology, gives 32% of power optimization and high performance of PDP. |
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Title: |
Measuring of background modeling and
subtraction algorithms on moving object detection in video sequences in
Chiangmai |
Author (s): |
Suepphong Chernbumroong Kitti Puritat and
Pradorn Sureephong |
Abstract: |
The
research reported drivers in Thailand spent time on car an average of 61
hours stuck in traffic last year, followed by motorists in Colombia and
Indonesia with an average 47 hours and the second in the world (behind
Libya) for number of road accident deaths. Thus, manual traffic count is
time consuming in order to identify which routes are used most, and to
either improve or solve the problem that road or provide an alternative
if there is an excessive amount of traffic with vehicle counting
systems. For the first step of analysis the road accident in Thailand,
real time segmentation algorithms of moving regions in image sequences
is an important step in counting systems including automated video
surveillance. Background subtraction of video sequences is mainly
regards as a solved problem. In this paper not only helps better
understand to which type of videos each method suits best for video
surveillance of Thailand but also compared of basic background
subtraction methods. |
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Title: |
Hybrid approach for sensor deployment in
WSN |
Author (s): |
Nikitha Kukunuru |
Abstract: |
Wireless Sensor Networks (WSNs) consists of arbitrarily placed tiny sensors
which monitor the target field. Every location of the target field is
said to be with at least one sensor. The sensors must be deployed in
such a way that every sensor is efficiently used to monitor the target
field with less coverage loss. Glowworm Swarm Optimization (GSO)
technique is swarm intelligence based technique, which depends on the
behavior of glow worms (also called as lightning bugs or fireflies). In
sensor node deployment optimization, GSO performs very well in terms of
coverage and is used to achieve greater coverage with less sensor nodes
in the network. The solutions obtained by hybrid approach which is based
on GSO and Bioluminescent Swarm Optimization (BSO) are better than the
best solutions obtained by an efficient Glow worm Swarm optimizer alone.
This approach is a free from differential equations and is a very
efficient evolutionary algorithm. Non-Stochastic adaptive step-size
movement strategy is implemented which is derived from GSO and BSO. On
the basis of considering dynamic deployment in WSNs, simulation results
show that the hybrid approach yields greater coverage than the existing
GSO technique. |
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Title: |
Optimized secure confirmations using smart
card evaluation in multi cloud storage |
Author (s): |
U. Susmitha and D. Rajeswara Rao |
Abstract: |
Distributed computing contains a collection of storage space web
servers, providing a fantasy of endless storage space and obtaining.
Security is one of the critical elements of such a process. Saving
details at a remote third party’s cloud product is always causing
serious concern over details privacy and survivability. Many security
techniques protect details reliability, but they limit the performance
of the details owner especially with respect to cancellation because one
key centered protection techniques are employed for secure details. So
we recommend another cryptosystem that can create resolved approximated
details obtaining important factors such that a data consultation
occasion requires assigning an offer of infrequent secrets of irrelevant
customers as understanding rights for particular agreement of realized
material. An amazing element is that one can total numerous agreements
of secret important factors from individual secret solidarity and at
once make them as reduced as could be allowed simply like their
protector individual solidarity, yet at the same time be pushing the
force of the considerable number of important factors being gathered
that can remarkably invest in a client. The JSON Web Methods (JWM)
detail signs up cryptographic computations are used for WEB encryption
with preferable key specifications in both JSON web framework and JSON
web key presentation. It characterizes a few IANA registries for these
identifiers. Every one of these details uses JavaScript Object Notation
(JSON) centered details components. This is used to produce similar
script picture era for managing effective capacity in distributed
computing. |
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Title: |
Calculation model and methodology for
stiffness evaluation in hydraulics cylinders |
Author (s): |
V. Gomez Rodriguez, Juan Jose Cabello
Eras, Noel Varela Izquierdo, Hernan Hernandez Herrera and Alexis
Sagastume Gutierrez |
Abstract: |
In
the paper an analysis scheme able to considerate of all the main
geometric and load factors that affect the behavior of a hydraulic
cylinder in its action as a flexural-compression member. Also,
experimental validations of the model are shown too. A methodology to
identify the conditions leading to the instability of the cylinder is
established. |
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