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ARPN Journal of Engineering and
Applied Sciences
April 2020 | Vol. 15 No. 7 |
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Title: |
Very short-term load forecasting of peak
load time using Fuzzy type-2 and big bang big crunch (BBBC) algorithm |
Author (s): |
Jamaaluddin Jamaaluddin, Imam Robandi,
Izza Anshory and Ahmad Fudholi |
Abstract: |
Very
short-term energy forecasting is done on a day before the day of
operation. Forecasting of short-term load is done every 30 minutes of
forecasting hours. Very short-term load forecasting is carried out
continuing forecasting short-term load with daily intervals, load on a
given day or weekly load to be more detailed with very short-term load
forecasting. This weight forecasting is done to improve operational
effectiveness and efficiency. Forecasting short-term loads have been
done using artificial intelligence, nowadays artificial intelligence is
attempted to predict a very short term load. In this study, investigated
the use of the Fuzzy type-2 (FT-2) and big bang big crunch (BBBC)
algorithm for the very short-term load forecasting. Results shows that
with the use of FT-2-BBBC, it will get a small error because it uses low
computation cost and high convergent speed. In addition, FT-2 also
optimizes the foot of uncertainty of the Fuzzy type-1. The results are
in the use of FT-2-BBBC hence the very short term load forecasting error
value of 0.7278%. This suggests that FT-2-BBBC can be used to perform
electrical load forecasting and other forecasting. |
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Title: |
Comparison between suspended or seabed
pipeline installation for inter island fresh water system |
Author (s): |
Tri Suyono, Agustinus Purna Irawan, Wati
Asriningsih Pranoto and Ahmad Fudholi |
Abstract: |
Provision of drinking water in small islands that do not have the
potential for fresh water needs to be done with several alternative
technology applications. One of the technologies being carried out is by
installing underwater drinking water pipes. Taking into account the
operational technical factors, at sea depths above 30 meters, several
considerations need to be taken into account, given that installing
pipes at these depths is difficult to control pipes manually, so
additional equipment is needed for the safety of workers who will
control the installed pipes, so this problem the best solution must be
found. One problem that must be considered is the selection of pipe
specifications that must meet technical requirements. Pipeline selection
is carried out by conducting a study through the pipeline model and
needs to be studied carefully and thoroughly so that the installed pipe
is completely safe in the sea and does not suffer damage due to forces
acting on the pipe caused by ocean currents, waves and underwater
conditions others. The installation model that will be examined is the
installation model suspended in the sea and installation on the sea
floor. From the results of the analysis conducted on the pipe suspended
in the sea with a depth of over 30 meters and the installation of pipes
on the seabed shows that the pipe installed in the sea is more stable
both from the effects of waves and ocean currents with a smaller
depormation value compared to the pipe that is installed Suspended in in
the sea. Pipe installed Suspended in the sea with a span of 2,500 meters
and given a weight of 65 kg with a distance of 12 meters can experience
vertical deflection down to 2,775,326 mm. Pipes placed at the bottom of
the sea are more stable because the flow of waves and waves is already
small so that the pipes are more stable and do not oscillate. The
recommended pipe installation is seabed with pipe specifications in
accordance with the conditions of the Hiri Strait, namely HDPE pipes
with a nominal pressure of at least 25 bar. |
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Title: |
Performance evaluation of the G.729, AMR
and iLBC voice codecs on LTE- ADVANCED |
Author (s): |
Jesús D. Quintero P., Martin D. Bravo O.
and José J. Salgado P. |
Abstract: |
This
article presents a referential framework given by an exhaustive analysis
of the quality of the service concerning the G.729, AMR, and iLBC coding
standards on LTE-A (LTE-ADVANCED) technology. The architecture that
forms the LTE-A technology, making a particular focus on the
characteristics that make up its OFDMA interface (Orthogonal Frequency
Division Multiple Access). Simulations of the scenarios are implemented,
showing data on the traffic generated by a certain number of users. On
the other hand, an algorithm was performed to extract the generated
packet by the voice encoders and the transmitting according to the
networking traffic information; it offered by the simulator. Finally,
the objective and subjective evaluations were realized, and the results
of the voice service quality on IP (VoIP) are presented, taking into
account the packet loss. |
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Title: |
Pressure and pressure derivative
interpretation for vertical wells in naturally fractured and
compressible formations |
Author (s): |
Guiber Olaya-Marin, Freddy H. Escobar and
Faiber Robayo |
Abstract: |
An
improved methodology for well test interpretation homogeneous and
naturally fractured and compressible reservoirs with a single fluid is
presented. New expression to find the permeability, permeability modulus
and geomechanical skin factor from slope during radial flow regime have
been introduced and corrections of for the minimum point and the
intercept between the unit-slope line taking place during the transition
period and the radial flow regime are given so existing equations in the
literature can be applied for the determination of the naturally
fractured reservoir parameters. These new expressions were successfully
applied to synthetic examples. |
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Title: |
An innovative kernel function for the NLM
filtering |
Author (s): |
Zayed M. Ramadan |
Abstract: |
The
Gaussian and exponential weighting functions have been used for a long
time as standard functions in the conventional nonlocal means (NLM)
filtering method and its variants. In this paper, a new weighting
function is proposed and tested experimentally in the NLM method. This
function is a power-of-two function that is used to measure the
similarity between pixels in the reference and search patches of the
image pixels. Six images of different features and amounts of details
are used in the simulations. Those images were subject to zero mean
Gaussian noise with various levels of standard deviation. Peak signal to
noise ratio (PSNR) and structural similarity (SSIM) have been used as
quantitative indices to measure the performance quality of the proposed
weighting function compared to that of the exponential and Gaussian
functions. The proposed function outperforms the exponential function in
all the tested images and for all values of noise standard deviations,
and produces similar results and sometimes slightly better than those of
the Gaussian weighting function. |
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Title: |
Increasing of the heat and mass transfer
processes efficiency with the application of non-uniform fluidization |
Author (s): |
Yaroslav M. Kornienko, Serhii S. Haidai,
Roman V. Sachok, Andrii M. Liubeka and Bogdan Y. Korniyenko |
Abstract: |
The
use of non-uniform jet-pulsating mode of fluidization allows increasing
the intensity of diffusion-controlled processes of mass isothermal
crystallization in granulation of liquid heterogeneous systems due to
the intensive volumetric mixing of granular material by pulsating
removal beyond the initial layer up to 40% of its mass with a frequency
of 1.6...1.8 Hz. Efficiency of application of the non-uniform
jet-pulsating mode of fluidization is confirmed by the granulation of
multi component liquid heterogeneous systems with obtaining humic-potassium-nitrogen-calcium-sulfur-containing
fertilizer with micro-impurities of magnesium and phosphorus with
chemical composition [Hum.]:[K]:[N]:[Ca]:[S]:[Mg]:[?]=[1.5]:[21.5]:[9.1]:[13.8]:[4.6]:[3.2]:[1.8]
with a layered structure, spherical shape with an equivalent diameter in
the range daverage=2.2...3.6 mm and a strength P greater than 12 N per
granule. In this case the granulation coefficient ? is more than 85%,
and the average specific load of bed by moisture is at least 1.5 times
higher than this index in the case of homogeneous fluidization. |
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Title: |
Lipid panel tests: Design and
implementation of an information system for results recording and
consulting |
Author (s): |
Albeiro Cortes Cabezas, Cesar A. Perdomo
Ch. and Julián Rolando Camargo López. |
Abstract: |
The
main aim of this work was to create a healthcare information system that
allows to medical and laboratory staff, authorize, register and consult
data about the lipid panel tests made to the patients. This paper
presents the design and implementation of an information system for the
registration, organization and analysis of lipid panel tests results in
the hospitals of the Department of Huila in Colombia according to the
standards HL7-FHIR (Health Level 7 - Fast Healthcare Interoperability
Resources). A result, an information system was designed and implemented
using free software as java, html5, css3, etc. It was concluded that the
proposed information system cans reduce the execution time and
facilitate the work of the medical staff when lipid panel tests are
performed. |
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Title: |
Preparation of metal powders from silver
melt for 3D printing by melt dispersion method |
Author (s): |
Masanskii Oleg A., Tokmin Alekcandr M.,
Kazakov Vladimir S., Bezruchko Alekcandr B., Gilmanshina Tatiana R.,
Lytkina Svetlana I., Kaposko Inga A. and Khudonogov Sergey A. |
Abstract: |
The
development and introduction of additive technologies in modern industry
is due to the need of production in reducing waste, reducing the
anthropogenic load on the environment and improving the environmental
friendliness of production, reducing labor costs and improving technical
and economic indicators, automation of the technological process in
obtaining products for various purposes. The increase in the number of
technological solutions that allow 3D printing is due to the mass
interest in this issue, the availability of modern technologies and
materials that make it possible to design, test and use printers in
experimental and production conditions. The purpose of this work is to
develop technological parameters for obtaining metal powder from silver
melt for 3D technology by dispersion method. In the course of the work
it was found that the formation of particles is significantly influenced
by the breaking angles of the silver melt with high-pressure water.
Studies have shown that to obtain particles whose shape is close to
spherical, with a diameter of 45–500 microns, it is effective to use the
splitting angles
a=45°,
b=42°.
Upon receipt of the powder with the corners split
a=30°,
b=45°
?
a=b=45°
are formed irregular particles on the surface and discovered oxygen in
the amount of 1.16 is 7.80 %. |
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Title: |
Control system for obtaining water from
air dehumidification by Peltier cells |
Author (s): |
Faiber Robayo Betancourt, Jesús D.
Quintero-Polanco and Ferley Medina Rojas |
Abstract: |
In
this article the implementation of a dehumidification system based on
Peltier cells that allows water particles condensation from the air is
presented. A PI (Proportional Integral) control design leads the
temperature from the cold cell face toward the dew point to improve the
system performance. The system performance is evaluated comparing the
system operation without control with the controlled system, in order to
set the improvements that allows increase water production and reduce
the electric power consumption. These tests indicate that when applying
control, the water production increases, while power consumption is
reduced, evidencing a remarkable improvement in system efficiency. |
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Title: |
The experimental studies of the automatic
control methods of magnetic separators performance by magnetic product |
Author (s): |
Jamil Abedalrahim Jamil Alsayaydeh, Win
Adiyansyah Indra, Adam Wong Yoon Khang, A. K. M. Zakir Hossain, Vadym
Shkarupylo and J. Pusppanathan |
Abstract: |
The
objective of this article is to experimentally test for the automatic
control of the magnetic separator efficiency of the magnetic product.
The developed process depends on the fact that the electromotive force
in electric coil located on the pole of the magnetic system of the
separation depends on its efficiency with the magnetic product. A
functional scheme of the measurement process is given to achieve a
magnetic separator by the magnetic product. The theoretical formulas
that describe the formation of a pulsed magnetic field in a magnetic
separation zone are presented and the magnetic induction of this field
is based on the physical variables that characterize the operating
system of the damp magnetic drum class. The theoretical reliance of the
magnetic induction of the magnetic field in the working zone on the
amount of magnetite in the concentrate layer on the surface of the
separator drum is determined. The methodology and functional scheme for
conducting experimental studies in an industrial environment of an iron
ore-dressing factory of the proposed automatic control method is given.
The method includes conducting a passive experiment, including the
selection of technological samples and their analysis with simultaneous
recording of voltmeter readings, which measure the voltage at the output
of the electric coil located on the pole piece of the magnetic system of
the separator. Mathematical treatment of the results of experimental
studies was performed through regression analysis method. The regression
equation that connects the size of the electric driving force is
obtained in the coil and the magnetic separator performance of the
magnetic product is performed. It is concluded that the magnetic
separator performance of the magnetic product is sufficiently accurate.
The results obtained allow us to develop a system for automatically
controlling the performance of a magnetic separator. |
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Title: |
Investigating the non-linear behavior of
RC framed structures with semi-rigid joints under vertical and lateral
load excitation |
Author (s): |
Khair Al-Deen Bsisu and Ibrahim
Altarabsheh |
Abstract: |
This
study aims at investigating the nonlinear behavior of adequate
reinforced concrete frames with semi-rigid connections under high
lateral load and comparing them to the moment resisting systems. These
two systems were compared based on their energy dissipation capacity,
inter-storey drift ratio, force distribution, ductility, failure
mechanism, and self-centering capacity. Also, this study aims at
evaluating important parameters for the Reinforced concrete building
with semi rigid connections such as over-strength factor, ductility, and
response modification factor and compare them with that of moment
resisting system. A complete three-dimensional finite element model for
the RC connections is developed using ANSYS finite element software to
determine the moment rotation curve for the connections based on their
size, concrete strength and reinforcement details. SAP2000 finite
element analysis model is performed to investigate the impact of semi
rigid connections on the nonlinear behavior of RC buildings. The seismic
force and displacement demand on the proposed system are determined
using nonlinear time history analysis. Moreover, the maximum
displacement that the building can withstand is determined using
pushover analysis. The study concluded that considering RC beam-column
joint as a rigid connection, will significantly overestimate the
stiffness of RC buildings and will give erroneous structural responses
under earthquake loading. |
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Title: |
Onboard obstacle sensing
mechanism for Drones using Monocular camera |
Author (s): |
Aswini N. and Uma S. V. |
Abstract: |
Unmanned Aerial Vehicles (UAV) commonly known as Drones, have become so
popular in recent years because of their enormous technical development
and demand in both the Military and Civil sectors. “No risk of human
life" is the biggest advantage of drones. To become completely
autonomous, there is a need for an Onboard Obstacle Sensing Mechanism (OOSM)
to detect and avoid a collision. Most of the drones used now in the
market have inbuilt cameras that can perform video recording. These
videos are sent to the ground control station and are processed using
suitable obstacle detection algorithms. The necessary commands are sent
back to the drones for further manoeuvres. In a real-time application,
obstacle detection becomes difficult when there is a need to process
videos from a Monocular camera. By this work, an attempt is made to
detect frontal obstacles using computer vision techniques, measure their
distance from the monocular camera using a mathematical approach. The
direction from which the obstacles are approaching is also estimated by
calculating the centroid of each image frame. |
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