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ARPN Journal of Engineering and
Applied Sciences
July 2019 | Vol. 14 No. 13 |
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Title: |
Impact of rubber crumb fraction and grain size on concrete strength |
Author (s): |
Jamal Al Adwan |
Abstract: |
Rubber Waste is produced largely worldwide every year. Its discharge is
challenging to the environment and its decomposition takes long time.
Therefore reuse of rubber in concrete mix is plausible. It was added to
concrete as coarse aggregate and its different properties like
compressive strength and flexural were investigated and compared with
ordinary concrete. Results show that rubberized concrete is durable,
less ductile, has greater crack resistance but has a low compressive
strength when compared with ordinary concrete. This study is evaluating
the properties of concrete mix with adding crumb rubber. In this study
we focus on compressive and flexural strength of concrete by adding
several percentages (1 to 5 %) of crumb rubber replacing cement in the
mix. Using crumb rubber in concrete decreases compressive and flexural
strength which means that it may not be suitable for rigid pavement.
Rubber crumb size has an effect where fine grain rubber seems to
minimize loss in concrete mix by 11% per 5 % increase in rubber.
However, rubber enhances other properties that may be useful for special
uses like noise reduction and water absorption reduction. The loss in
compressive strength of rubberized concrete can be compensated by
additives like silica. |
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Title: |
Predictive risk mapping related to the shrink-swell of clays under the
railway track in the Settat Plateau (Morocco) |
Author (s): |
Mohamed Ben Ouakkass, Latifa Ouadif, Lahcen Bahi and Ahmed Akhssas |
Abstract: |
Clay soils are generally linked to the shrink-swell phenomenon. This
phenomenon causes many disorders in the infrastructure and in particular
railway infrastructures, which are extremely sensitive to soil
deformations. This is mainly reflected through the deterioration of the
geometry and performance of the railway, and it has a notable impact on
maintenance and servicing costs. This paper presents the analysis of the
settlement of clay soils, on the one hand on the basis of the results of
geotechnical tests carried out in-situ and in the laboratory and on the
other hand by using numerical modelling using the finite element method.
This analysis shows that the results are very close and allows a
preventive mapping of the risk distribution along the section of the
studied railway track. To mitigate these risks, the feasibility of the
substitution technique was studied through removing 4 m from the soil
and replacing it with selected materials. This technique has shown a
significant improvement in the performance and behavior of the clay
formation. |
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Title: |
Evaluation of enforcing rigid pavements with plastic waste fibers |
Author (s): |
A. M. Abu Abdo and S. J. Jung |
Abstract: |
Greener and more sustainable construction projects have become the
target of most agencies and officials, worldwide. With the increase of
solid wastes, especially plastic waste, many attempts are made to
incorporate these waste materials into construction projects. However,
there are sound concerns about the side effects of adding plastic waste
to construction materials, mainly Portland Cement Concrete (PCC) mixes.
Thus, this study was conducted to investigate the effects of adding
plastic waste fibers to PCC mixes when it comes to performance of rigid
pavements. Low percentages (25%, 0.375%, and 0.5%) of plastic waste
fibers were evaluated. KENSLAB software was utilized to determine
stresses, deflections, and Cracking Indices in a rigid pavement. Based
on conducting tests and analysis, 0.25% plastic waste fibers could be
considered the optimal percentage, since it would enhance the
performance of a rigid pavement and extend its design life. However,
loss of workability of PCC mixes with plastic waste fibers may be a
concern and should be taken care of by adding super plasticizers to
counter act this loss. |
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Title: |
Development of an automatic queue number with reservation system using
Short Message Services |
Author (s): |
Muhammad Hakim Abdul Wahid, Rijalul Fahmi Mustapa, Kamaru Adzha Kadiran,
Chin Pei Fen, Amar Faiz Zainal Abidin, Khairul Kamarudin Hassan,
Muhammad Muzamil Mustam, Siti Aliyah Mohd. Saleh, Firdaus Sukarman and
Syahrul Hisham Mohammad |
Abstract: |
Queuing number for reservation system has been widely used especially
related to service counter such as on banking service or government
services. One of the most concerns is wastage of time for the long queue
at ticket counter which cause service inefficiency regardless at
government or private sector. Automatic queue number reservation system
is a system that allows users to reserve a queue ticket or number
efficiently which operate base on short message services (SMS) mobile.
The automatic reservation function of the system has several multiple
services which are based on user requirement. The purpose of this system
is to reduce the waiting time for the customers, implement alternative
for customer to select the preference time for the bank services also
putting prioritize on advance booking customer thereby improve
customer’s satisfaction and increase the efficiency. This article
presents the design of the automatic reservation system for the bank
customers, build the reservation system devices, verify the product and
system functionality and validate the results availability, real time
and dependability. The basic components used in this project are Arduino
Mega as controller, SIM900 GSM Shield module to send and receive SMS and
Liquid-Crystal Display (LCD) used to display the reservation system. |
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Title: |
Research and application of a new charging flocculation agent for small
scale clean water supply in ha Tinh and Vinh Long provinces, Vietnam |
Author (s): |
Phung Chi Sy, Yoshiharu Yagyu and Koichiro Harada |
Abstract: |
The charging flocculation agent is produced from volcanic ash by
calcining it in the special firing furnace to generate high porosity,
then applying a strong electric charge to some substances included in
the ingredient of the ash by special processing. The agent consists of
the natural inorganic substances, therefore, it is considered as an
ecological water depurative. The agent has rapid rate of flocculation
and sedimentation, therefore, the facility cost is cheaper,
post-processing sludge is simplified, operation cost is low, and
efficiency is high. Apart from effective treatment of the waters
contaminated with high content of turbidity and color, the agent can
remove some heavy metals such as Fe, Mn and some organic substances
(COD), therefore, it have been used for water supply treatment. The
results of application of the flocculation agent in Ha Tinh and Vinh
Long provinces on small- and medium water supply facilities with
capacity of 50 litters and 500 liters per a hour shows that the quality
of the treated waters met the QCVN 02:2009/BYT. When using the
flocculation agent and the disinfectant agent, the quality of treated
waters can meet all 109 parameters regulated in QCVN 01:2009/BYT. |
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Title: |
Unsteady MHD flow through porous medium in a rotating vertical channel
in slip flow regime |
Author (s): |
N. Ravi Kumar and R. Bhuvana Vijaya |
Abstract: |
We consider an oscillatory MHD convective viscous incompressible,
radiating and electrically conducting second grade fluid through porous
medium in a vertical rotating channel in slip flow regime. A flow is
laminar and fully developed and the fluid is presupposed to be gray,
absorbing and emitting radiation out in non scattering medium. The
solutions are obtained for the velocity and temperature distributions
making use of regular perturbation technique. The velocity, temperature
and concentration profiles are discussed through graphically as well as
skin friction coefficient, Nusselt number and Sherwood number are
evaluated numerically and presented in the form of tables. |
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Title: |
Analysis the stumbling blocks associated with sustainable procurement in
industrial contracting using 5-whys technique |
Author (s): |
Ryad Tuma Hazem and Hatem Khaleefah Breesam |
Abstract: |
The construction industry is one of the important economical source for
many developing countries to further focus on this industry, contracting
parties need to adhere to sustainability standards and towards the
development of regulations related to the establishment of a sustainable
in contracting industry. Considering that Iraq is one of the developing
countries so that influential members in the construction industry as a
part of contracting industry to adhere to the standards of
sustainability in all sections, especially the part of related with
procurement. This study is condensed the steps on describing of
stumbling blocks and analysis root causes associated with sustainable
procurement process then highlighting the reasons for delaying the
sustainable application for procurement issues in construction
activities related with oil industrial sector. The applying of 5-why
methodology and series to find out the real causes and specify the
treatments based on applying the survey for experts, consultant and
engineers whom have wide experiences in construction spectrum. Access to
outputs in each construction phases that contributes to the application
of sustainable conditions in processes that are an important part of
communication among the contractual parties therefor; the outputs of
contracting and sustainable procurement will contribute to imposing
restrictions on contractors, subcontractors, suppliers to compel them to
commit on applying sustainable standards in the construction process. |
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Title: |
Recycling of constructional plastics with additives of exhausted
polyethylene |
Author (s): |
Kobets A. S., Derkach O.D., Kabat O. S., Kovalenko V. L. and Kotok V. A. |
Abstract: |
Received polymeric materials with the use of wasted polyethylene of
PE-500 and PE-1000 grades can serve, as construction materials at
regimes, which correspond to characteristics of new PCM. Presence of
carbon fibers in composites such as UPA-6-30+PE-500 (10%) and
UPA-6-30+PE-1000 (10%) allows applying details, made of these materials
without normative greasings. The use of waste polyethylene of PE mark
decreases physicomechanical characteristics in received PCM with the
exception of impacting viscosity. It is shown that such an indicator as
the stress of the boundary of the volume of compression is high (about
100 MPa), which indicates the possibility of using PCM data, for
example, for bearings of parallelogram mechanisms of sewing machines,
where the pressure value is within the range of 23 to 30 MPa. |
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Title: |
Energy efficient power control for multi-carrier communication using
Game theory |
Author (s): |
Mohamed Amine Charar and Zouhair Guennoun |
Abstract: |
In this article, we investigate energy efficient power control for the
uplink of an OFDMA (Orthogonal Frequency-Division Multiple Access)
single-cell communication System. We assume that the user equipments
decide freely their power level on the available subcarriers of the
system in order to maximize their individual Energy Efficiency (EE)
while respecting minimum normalized rate requirements to guarantee a
certain Quality of Service (QoS). We use the non-cooperative Game theory
to demonstrate that users will end by learning the equilibrium. The
solution of the Game is given as a water-filling like power allocation.
Furthermore, we implement a distributed power allocation scheme using
two ways: a) Fractional Programming techniques: an existing Algorithm
for power allocation b) A closed form expression: our proposed algorithm
for power allocation. Simulations show that the proposed algorithm
performs better in terms of Spectral Efficiency (SE) even though it has
less EE than the reference algorithm. |
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Title: |
Sleep state detector system for domotic control with Z-wave technology |
Author (s): |
Camilo Cerquera, William Rodriguez and Luis Pedraza |
Abstract: |
In the following document, we realize the development and evaluation of a
device capable of identifying the dream state of a person for the
control of a home automation system. This takes advantage of the user's
breathing time lapses to achieve the detection of the sleep state and is
integrated into a system arranged for the application of the domotic
control in a place. It is evidenced through an analysis of the
electricity in a house as the implementation of the system generates
significant savings and how its application would improve the quality of
the user's sleep. With the proposed design an optimal response is
observed in the detection stage, where the measurements of the quality
of service (QoS) parameters indicate its correct operation. |
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Title: |
Pseudo random number generator based on Neuro-Fuzzy models |
Author (s): |
Layla M. Mohammed Ali and Sarab M. Hameed |
Abstract: |
Producing pseudo-random numbers (PRN) with high performance is one of
the important issues that attract many researchers today. This paper
suggests pseudo-random number generator models that integrate Hopfield
Neural Network (HNN) with fuzzy logic system to improve the randomness
of the Hopfield Pseudo-random generator. The fuzzy logic system has been
introduced to control the update of HNN parameters. The proposed model
is compared with three state-of-the-art baselines the results analysis
using National Institute of Standards and Technology (NIST) statistical
test and ENT test shows that the projected model is statistically
significant in comparison to the baselines and this demonstrates the
competency of Neuro-Fuzzy based model to produce a pseudo-random number. |
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Title: |
Investigation of the strength characteristics of samples made of nylon
by FFF technology |
Author (s): |
I. A. Skornyakov, T. V. Tarasova and S. M. Terekhina |
Abstract: |
Additive manufacturing of polymer products over the past decade has
become widespread in various areas of industry. Using the FFF method,
one of the most technologically simple methods of additive
manufacturing, it is possible to produce parts from a large number of
different materials, including wear-resistant nylon. This article
reflects the process of manufacturing samples from nylon using FFF
technology with various internal topologies, as well as tensile tests.
The analysis of the obtained results is performed and the relationship
between the structure of the sample and the limit of its strength is
established. The FFF method is promising for developing methods for
producing composite materials. The results of this article can be useful
in choosing the necessary manufacturing parameters. |
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Title: |
Optimization of square shape portable vacuum clamping (SQUARE) based on
machining parameter |
Author (s): |
N. Ab Wahab, Shiradzi Bin Basharudin and Hambali Bin Boejang |
Abstract: |
Clamping is a fastening device function to hold or secure the object to
prevent movement during process or when applied pressure. There are many
types of clamping device available for many purpose. This project
purpose is to optimize the vacuum clamping based on the machining
parameter. From the previous research that develop the vacuum clamping,
the product is continue to use to determine the machining performance of
vacuum clamping. However, at that time the target was only to develop a
functional prototype and only some testing were done. Therefore, in
order to optimize the vacuum clamping surface roughness testing was done
using this new clamping device to compare with already existing clamping
device. The expected result show that vacuum clamping is better. As a
conclusion, vacuum clamping can be improved for better use in the future
and apply to the manufacturing field. |
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Title: |
Failure analysis in focused ion beam (FIB) technology of ion
channeling
contrast (ICC) and electron channeling contrast (ECC): A review |
Author (s): |
Nornikman Hassan, Badrul Hisham Ahmad, Mohd. Zukhairi Md Sarip, P. E. Lim
and Zahriladha Zakaria |
Abstract: |
This paper is review on the failure analysis in semiconductor area,
especially in the integrated circuit (IC) design. Firstly, the
literature review is done based on the keyword of focused ion beam
(FIB). The FIB is one of the important micro-/nano-fabrication tools
preparation of and transmission electron microscopy (TEM) tool. In FIB,
two different channeling contrast techniques can be used. The first one
the ion channeling contrast (ICC) and second one is the electron
channeling contrast (ECC). These two techniques are using in different
situation and had been different effect at the sample. The several
previous works on this ICC and ECC techniques by several researchers are
reviewed in this paper. |
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Title: |
Developing the process parameters of milk pasteurization for reducing
the concentration of toxic elements and radionuclides |
Author (s): |
Aitbek Kakimov, Assem Jilkisheva, Aleksandr Mayorov, Klara Zharykbasova,
Zhainagul Kakimova, Gulmira Mirasheva, Yerlan Zharykbasov, Aleksandr
Zolotov and Zhanibek Yessimbekov |
Abstract: |
Contamination of food by heavy metals and radionuclides is the main
problem of food safety. Developing the methods of reducing the toxic
elements in milk products can be relevant and topical issue. One of such
methods is milk pasteurization. The laboratory pasteurization equipment
which consists of three sections: pasteurization section, holder and
cooler is developed. Milk is pasteurized at temperature range from 74 -
76 ºC, 80 - 82 ºC, 86 - 88 ºC, 92 - 94 ºC, 98 - 100 ºC for 0 to 60 s. An
optimal pasteurization regime for decreasing the toxic elements content
is determined: temperature of pasteurization - 78 C, optimal holding
time in pasteurization equipment for zinc ions - 55 s, for cadmium ions
- 54 s, for lead ions - 52 s, for copper ions - 50 s, for cesium ions -
52 s, for americium ions - 51 s. As a result, the zinc content decreased
by 2.2%, cadmium content - by 4%, lead content - by 6%, copper content -
by 12%, cesium content (137Cs) - by 1.05% and americium (241Am) - 0.8%. |
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Title: |
Self tuning and control of plate heat exchanger via fuzzy-PID |
Author (s): |
N. Bagya Lakshmi, S. Siva Subramanian and V. Dinesh Kumar |
Abstract: |
Heat exchanger is a device which provides a flow of thermal energy
between two or more fluids at different temperatures. The main purpose
of heat exchanger is to maintain the temperature of outlet fluid. This
paper involves a mathematical modelling for plate heat exchanger using
MATLAB. The mathematical modelling can be done by using system
identification procedure. Transfer function of a model is obtained from
the system identification. The model is simulated using SIMULINK and the
PID parameters are obtained by using fuzzy. The results obtained from
fuzzy Self tuning PID was successful than comparing to the classical PID
controller. |
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Title: |
Web platform for the management of the information of the graduates of
the electronic engineering program at the Surcolombiana University |
Author (s): |
Boris Anderson Angulo,
Diego F. Sendoya-Losada and Alejandra Gonzalez |
Abstract: |
This article describes the design of a web platform with social network
functions. The platform called "USCO Graduates", uses open software
tools and GPL license, for the management of the information of the
graduates of the electronic engineering program at the Surcolombiana
University. This allows identifying the occupation, location,
employment, integration to academic or scientific communities and
graduates' distinctions. Its development took place in Elgg, an open
source social web application. Elgg is composed of modules that allowed
obtaining the desired functionalities in the platform such as: Activity,
Job offers, Blogs, Files, Groups, Surveys, Members, Chat, Wall, Wiki,
Albums and the possibility of creating a Profile. In addition, it has an
embedded survey made at Kwik Survey, whose purpose is to carry out the
process of registering, managing and updating data, as well as
delivering the required information. Finally, there is a mobile
application for Android that can be downloaded via a QR code. |
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Title: |
Vision-based algorithm for recyclable waste classification |
Author (s): |
Aaron Don M. Africa, Neil Patrick J. Labay, Mariel Sheryn B. Ong,
Jillian Abigail J. Sales and Mitsuru Mike E. Toyoda |
Abstract: |
Waste segregation is one of the most prominent problem in the
world
particularly in the Philippines where waste segregation is done
manually. This research aims to solve the problem regarding waste
segregation by means of image processing. These recyclable materials are
classified into nine groups namely: aerosol cans, aluminum cans, cereal
box, glass bottles, paper bowls, plastic bottles, plastic cups, tetra
packs and tin cans. The recyclable material is subjected to a controlled
environment then the image is captured by the camera. The region of
interest is extracted from the image by the use of cascade filters such
as weiner and median filter along with morphological operators and canny
edge detecto. Scale Invariant Feature Transform (SIFT) features are
extracted from the image. Then two methods are used for classfying,
namely: Random Sampling and Consensus (RanSac) and a combination of
Bag-of-Words (BOW) and Support Vector Machines (SVM). |
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Title: |
Principles, applications and perspectives of predictive control |
Author (s): |
Diego F. Sendoya-Losada |
Abstract: |
Model-Based Predictive Control (MBPC or simply MPC) is a control
methodology that makes use of the process model to predict the future
outputs of the plant and based on it to optimize future control actions.
In fact, predictive control cannot be considered as an independent
control strategy, but instead, it integrates a whole family of control
methods such as optimal control, process control with dead times,
multivariable processes control, etc. This has allowed that the
predictive control has had an important development both in the
scientific and academic community, as in the industrial sector. |
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Title: |
A survey of studies on plastic tubes
confined plain concrete as compression members |
Author (s): |
Ahmed Sagban Saadoon, Abdulnasser Mohammed
Abbas and Ali Abdulhasan Khalaf |
Abstract: |
This
paper reviews available reports, papers, theses, and conference papers
on the use of plastic tubes confined plain concrete as compression
members. Different hollow sections filled with concrete have been used
as composite columns and many studies were performed in this area.
However, there are few studies concerning with plain concrete filled
plastic tubes. In this review, available published studies, on this type
of composite columns, are reviewed and summarized to view the type of
the studied columns and the main studied variables that affecting the
behavior of these composite columns. More than (145) specimens are
collected and showed in this review. |
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