i-COSINE 2019

COMMITTEE

ADVISOR RIZAL SYAHYADI (Director of Politeknik Negeri Lhokseumawe)
PROF. IR. DR. SULAIMAN WADI HARUN

CHAIRMAN DR. HAZLI RAFIS ABDUL RAHIM
USMAN, S.T., M.Eng, Ph.D

SECRETARY AHMAD HAZIQ AIMAN ROSOL
ZURAIDAH HARITH
ALFIAN PUTRA, S.T., Agric
DR. BUSRA, S.E., M.Si

BURSARY AMINAH AHMAD
MURSYIDAH, S.T., M.T.

REGISTRATION TS. DR. ARNI MUNIRA MARKOM
TS. DR. MOHD ERFY ISMAIL
MUHAMMAD FAHMI BIN HISAMUDIN
SURYATI, S.Si, M.Si

LOGISTIC & MUHAMMAD TAUFIQ AHMAD
PUBLICITY MUHAMMAD FARID MOHD ROSDI

AZWAR, S.T., M.Sc

PUBLICATION & ICT DR. AHMAD RAZIF MUHAMMAD
IR. DR. ANAS ABDUL LATIFF
IR. TS. DR. MOHD FAUZI AB RAHMAN

COORDINATOR & AFIQ ARIF AMINUDDIN JAFRY
PROTOCOL DR. HAZLI RAFIS ABDUL RAHIM
PROGRAM DR. NABILAH KASIM
DR. NELLY SAFITRI, SST, M. Eng.Sc
DR. MUSBAR
ELWINA, S.T.,M.T.
DR. SAIFUDDIN

MEDIA & PRINTING HAZIEZOL HELMI MOHD YUSOF
MOHD ADZIMNUDDIN MOHD NOR AZAMI
HAMDANI, SE, M.S.M

MASTER OF IR. DR. MALATHY BATUMALAY
CEREMONIES ZULKARNAINI, S.E., M.Si.Ak.CA

INFORMATION

ABOUT

The 2nd International Conference on Innovative Technology, Engineering, and
Sciences is an inaugural conference organized by the Lhokseumawe State
Polytechnique (PNL) and Optical Society of Malaysia (OSM). The main goal of i-COSINE
is to bring together researchers, scientists and experts in universities, companies,
institutions, communities, agencies, associations and societies to provide them a
unique platform for sharing worldwide ideas as well as the recent developments on
science, innovation and engineering technology.

All accepted papers after thorough revision will be published in IOP Conference Series
Materials Science and Engineering International. MSE is an open-access proceedings
journal. Conference papers are published online as a single volume and indexed in ISI
Web of Science (Conference Proceedings Citation Index), Scopus, EI Compendex. -all
articles will receive a permanent DOI number.

PARTICIPATION IDENTIFICATION

Please wear your conference identification card at all the time in the meeting venue
as well as in academic session and social events.

EXCHANGE

Malaysia official currency is Malaysian Ringgit (MYR).

TRANSPORTATION

KLIA / KLIA2 to Melaka Sentral:

1) Starmart Express - After landing and undergoing customs clearance, foreign
tourists can proceed to the KLIA coach bay and KLIA2 coach bay for checking in and
boarding. The earliest departure is at 6:10 am in the morning and the latest
departure is at 12:15 am at midnight. Please note that bus departures for the
afternoon session only begins at 1:15pm.

For more details, refer here "Schedule"

Melaka Sentral to Imperial Heritage Hotel:

Participants may book for Grab/Uber/Taxi to the Imperial Heritage Hotel, Malacca,
Malaysia.

SPEAKERS

Dr. Waleed S. Mohammed

Bangkok University, Thailand
Optical Devices & Modelling

3D-printed optics and 3D-printed optical transducers

The presentation focuses on utilization of low cost 3D printing
technology to develop functional optical transducers that can be used in
sensing applications. Traditional 3D printer is used to build the
mechanical mounting in PLA to realize a low cost optical transducer.
Here, Surface Plasmon resonance (SPR) sensor was demonstrated where
the source and detector are aligned by the 3D-printed structure. In
another work, a one-step fabrication process for large feature size
integrated optical elements and its applications in vapor sensing are
presented. The process utilizes digital light processing (DLP) 3D-printing
technology to fabricate a tower shaped structure in transparent raisin.
The surface roughness obtained by the structure slicing comes very
useful as a scattering element. That allows the detection of the presence
in gas due to the polymer swelling process.

SPEAKERS

Prof. Dr. Ir Marwan

Syiah Kuala University, Indonesia
Chemical Engineering

Solid Catalyzed Consecutive Reaction of Glycerol
Esterification towards Triacetin Assisted by Microwave

Irradiation

Achievement of consecutive reactions to the desired products depends
on the choice of reaction conditions, catalytic characteristics, reactor
type, and flow pattern. Introduction of microwave irradiation in certain
reactions shows a favorable effect on the reaction performance due to
direct coupling with the molecules that exist in the reaction mixture,
leading to a rapid and efficient heating process. On this occasion, we
discuss the use of microwave irradiation in assisting consecutive reaction
of glycerol esterification to triacetin. Glycerol is an inevitable low value
co-product of biodiesel from transesterification of edible and non-edible
oils. A complete esterification will produce triacetin, a more valuable
product applicable for fuel bio-additive in diesel and biodiesel engines. In
our recent works, microwave-esterification of glycerol catalyzed by acid
modified zeolite and rice husk biosilica was carried out at atmospheric
pressure. Glycerol was readily esterified toward monoacetin during first
one hour. However, further conversion of monoacetin to diacetin and
then to triacetin took place at slower rates. Rice husk biosilica catalyst
gave slightly higher selectivity for the triacetin. The catalysts were
characterized for surface morphology and crystal diffraction profile,
while the reaction products were identified by FTIR and GC-MS. The
findings suggest that the use of microwave replacing conventional
heating could give fast conversion of glycerol to completion at mild
conditions, but the selectivity towards triacetin still need to be improved.

SPEAKERS

Prof. Ir. Dr. Kaharudin
Dimyati

University of Malaya, Malaysia
Electrical Engineering

An ad-hoc network routing scheme for Distributed
Autonomous and Resilient Emergency Management

Systems (DARE)

Malaysia is often affected natural disasters such as floods, landslides,
haze, earthquake and other man-made disasters, as well as some rare
cases of droughts and tsunami. It has been learned that
telecommunications networks are one of the major pillars for disaster
management. However, in times of these calamitous events,
telecommunication infrastructures may become dysfunctional or
degraded due to failure or damage as well. In such a situation, the mobile
ad-hoc network paradigm becomes the convenient way to ensure rapid
deployment and self-manage wireless link with the end users. In this
case, a set of autonomous devices; mobile and/or stationary with
internet-enabled interfaces can now interconnect with one another over
the wireless channels to form a kind of makeshift dynamic network,
which can serve the purpose for which it was setup whether with or
without the assistance of any centralized infrastructures such as base
stations (BS) or wireless access points. However, the potentials of
MANETs are yet to be fully realized as existing MANETs routing protocols
still suffer some major technical drawback in the areas of mobility, link
quality, and battery constraint of mobile nodes between the overlay
connections. To address these problems, in this keynote a routing
scheme named Mobility, Residual energy and Link quality Aware
Multipath (MRLAM) for routing in MANETs will be discussed. The scheme
makes routing decisions by determining the optimal route with energy
efficient nodes to maintain the stability, reliability, and lifetime of the
network over a sustained period of time.

SPEAKERS

Prof. Dr. Zahriladha Zakaria

Universiti Teknikal Malaysia Melaka,
Malaysia

Electrical Engineering

A New Class of Microwave Bio-Sensor with High-
Measurement Accuracy for Sensing Applications

The topic of microwave sensors in enclosures is one of the most
active areas in material characterization research today due to its
wide applications in various industries. Surprisingly, a microwave
sensor technology has been comprehensively investigated and
there is an industry demand for an accurate instrument of
material characterization such as food industry, quality control,
chemical composition analysis and bio-sensing. These accurate
instruments have the ability to understand the properties of
materials composition based on chemical, physical, magnetic, and
electric characteristics. Therefore, a new class of microwave
resonator has been introduced and investigated for an accurate
measurement of material properties characterizations. Various
standard dielectric of the sample under test (SUT) are tested to
validate the sensitivity which making it a promising low-cost,
compact in size, ease of fabrication and small SUT preparation for
applications requiring novel sensing techniques in quality and
control industries.

Time 9 Novem

0900 - 1215 Chairperson:
Ru
0900 - 915 O

Rizal Syahyadi - Director (Po

0915 - 1000 Ke
Solid Catalyzed Consecutive Reaction of Glycerol Es

Pro
Syiah Kua

1000 - 1045 Ke
An Ad-hoc Network Routing Scheme for Distributed A
1045 - 1100
1110 – 1120 Prof. Ir. D
Universit
1120- 1205
Pho
Mo

Ke
3D-printed Optics an

Dr. W
Bangkok

1205 - 1250 Ke
A New Class of Microwave Bio-Sensor with

Prof. D
Universiti Teknik

TENTATIVE

mber 2019, Saturday
Activity

Opening
: Ir. Dr. Malathy Batumalay
uby Hall - Level 3

Opening Speech
oliteknik Negeri Lhokseumawe, Indonesia)

eynote Speech 1
sterification towards Triacetin Assisted by Microwave Irradiation
of. Ir. Dr. Marwan
ala University, Indonesia

eynote Speech 2
Autonomous and Resilient Emergency Management Systems (DARE)
Dr. Kaharuddin Dimyati
ty of Malaya, Malaysia

otography Session
orning Tea Break

eynote Speaker 3
nd 3D-printed Optical Transducers
Waleed Mohammed
k University, Thailand

eynote Speaker 4
h High-Measurement Accuracy for Sensing Applications
Dr. Zahriladha Zakaria
kal Malaysia Melaka, Malaysia

1250 - 1300 Parallel Session A1 Appre
(Chemical & Biotechnology)
1300 - 1400 Session chair: Dr. Kazi Md Salim Cheng H
Parallel S
1400 - 1600 Newaz (Compute
Ruby Hall - Level 3 Session chair:
1400 - 1410
1410 - 1420 CC033 Emerald H
1420 - 1430 CC083
1430 - 1440 CC055 CC
1440 - 1450 CC034 C0
1450 - 1500 CC037 CC
1500 - 1510 CC036 CC
1510 - 1520 CC008 CC
1520 - 1530 CC026 CC
1530 -1540 CC067 CC
1540 - 1550 CC
Parallel Session A2 CC
1550 - 1600 (Chemical & Biotechnology) CC
Afte
1550 - 1600 Session chair: Dr. Usman Parallel S
1600 - 1610 (Mechanical
1610 - 1620 Ruby Hall - Level 3 Session chair: Ir. T
1620 – 1630 CC039 Ab Ra
1630 – 1640 CC100 Emerald H
1640 – 1650 CC071 CC
1650 - 1700 CC058 CC
1700 - 1710 CC052 CC
1710 - 1720 CC017 CC
2000 - 2200 CC050 CC
CC
CC
CC

eciation Ceremony TENTATIVE
Lunch Break
Ho Restaurant - Level 3 Parallel Session C1
Session B1 (Physics)
er Science)
Dr. Nelly Safitri Session chair: Dr Nabilah Kasim

Hall - Level 3 Platinum Hall - Level 1
CC046
C048 CC047
0063 CC069
C064 CC011
C031 CC066
C032 CC043
C041 CC074
C085 CC061
C014 CC019
C024 CC044
C088
ernoon Tea Break Parallel Session C2
Session B2 (Physics & Mathematics)
l Engineering) Session chair: Zulkarnaini
Ts. Dr. Mohd Fauzi
ahman Platinum Hall - Level 1
Hall - Level 3 CC003
C082 CC015
C028 CC025
C009 CC002
C097 CC045
C095 CC065
C098 CC078
C006 CC068
C094 CC054

BBQ Dinner

Time Parallel Session A3 10 Nove

0900 - 1030 (Electrical Engineering) Parallel S
Session chair: Dr. Arni Munira (Environment
0900 - 0910
0910 - 0920 Markom Techn
0920 - 0930 Ruby Hall - Level 3 Session chair: T
0930 - 0940
0940 - 0950 CC018 Ism
0950 - 1000 CC027 Emerald H
1000 - 1010 CC087
1010 - 1020 CC062 CC
CC057 CC
CC013 CC
CC112 CC
CC
1020 - 1200
Mo
1020 – 1045
Chairperson:
1045 – 1130 Ru
1130 – 1200 C
1200- 1300 R

Politeknik
Aw

Cheng H

TENTATIVE

ember 2019, Sunday Parallel Session C3
Activity
(Civil Engineering)
Session B3
t, Food & Green Session chair: Dr. Musbar
nology) Platinum Hall - Level 1
Ts. Dr. Mohd Erfy CC051
mail CC007
Hall - Level 3 CC029
C091 CC030
C093 CC092
C042 CC102
C070
C108

orning Tea Break

Closing
: Ir. Dr. Malathy Batumalay
uby Hall - Level 3
Closing Speech
Rizal Syahyadi

Director
k Negeri Lhokseumawe
ward Ceremony

Check Out

Lunck Break
Ho Restaurant – Level 3

ABSTRACT – A1

CC033
Chemical

Synthesis and Characteristics of PLA-Chitosan-Zno
Composites for Making Biofilm Packaging

T Rihayat1 , S Riskina1 , Nurhanifa1 , R Syahyadi2

1 Department of Chemical Engineering, Politeknik Negeri Lhokseumawe, 24301,
Aceh Indonesia

2 Department of Civil Engineering, Politeknik Negeri Lhokseumawe, 24301, Aceh
Indonesia

[email protected]

This research is about Composite Polylactic Acid with chitosan and zinc oxide
reinforcement (ZnO) in the manufacture of packaging biofilms. The purpose of this
study is to produce biofilms with good characteristics that can be applied to food
packaging. The method used is heating by varying the concentration of chitosan (1,3
and 6%) and the concentration of ZnO at (1, 2,3 and 4%). The resulting biofilm was
analyzed by tensile test, thermal gravimetric, SEM, FTIR and water absorption test.
The results showed that the optimum tensile strength value obtained at the addition
of Chitosan 6% -ZnO 3%, amounting to 1.22 MPa. The best water absorbency of
biofilms produced for 5 days is at Chitosan 1% -ZnO 1% which is equal to 2.25%. The
functional groups contained with the addition of ZnO and chitosan are functional
groups C-H, C = O, O-H, and N-H. The morphology seen in the optimum tensile
strength sample is less homogeneous at all magnifications. Biofilm samples
underwent single decomposition with bioflim degradation temperatures ranging
from 220-300 oC, the highest On Set temperature was 238.24 oC, while the highest
End Set was 295.16 oC. ZnO reinforcement added to the resulting composite can
increase the tensile strength

ABSTRACT – A1

CC083
Biology, Electrical Engineering, Biotechnology

The role of heart rate variability on resilience: A case
study among university students

Mohd Sufian bin Abdul Hamid, Muhammad Kamal bin Mohammed Amin

Universiti Teknologi Malaysia, 54100 Kuala Lumpur, Malaysia
[email protected]

This research paper explores the role of heart rate variability (HRV) on resilience
among university students. Changes of human heart rate against stimuli and
interventions is observed through HRV device. Hence the resilience attribute is
measured from the HRV parameters. HeartMath emWave desktop Software Kit is
used to measure the 30 students’ heart rate when they are given a stimulus and an
intervention to see the changes of their heart rate. They were chosen based on their
score from Brief Resilience Scale survey. Results from this experiment showed that,
when the students are going through a stimulus, the heart rate produced is mostly
incoherent due to stress and being anxious. However, their heart rate becomes
coherent after given an intervention. The intervention used was slow breathing
technique where it trained the students to breath 6 times per minute. It helps the
students to become more relax and synchronize their autonomic nervous system
(ANS). The results suggest that the right intervention can be used to help the
students to adapt to any kind of difficulties which is by controlling their heart rate so
that it becomes coherent, thus improving the synchronization of ANS and their
resilience.

ABSTRACT – A1

CC055
Chemical

Ultrasound Assisted the Degradation of methylene
blue using WO3-Deoiled Spent Bleaching Earth as

photocatalyst

N Hindryawati, A.S. Panggabean, D.J.N. Subagyono, Wilsoma, G.P. Maniam

[email protected]

Degradation of methylene blue using WO3-deoiled spent bleaching earth has been
conducted. The incorporation of ultrasound into this reduced the time and increased
the reaction rate. Structural and morphological characterization has been carried
out by means of X-ray diffraction (XRD), and Scanning electron microscopy coupled
to the energy dispersive spectroscopy (SEM_EDX). From the X-ray diffraction results
show the mineral on bleaching earth is rectorite with dioctahedral mica layer and
dioctahedral smectite with ratio 2:1 and after calcinations the pattern WO3 was
appearance. After calcination at 500°C shows the WO3 was deposited
homogeneously on the DSBE surface. The catalytic performance of WO3-BE for
photodegradation of methylene blue under visible light was 99.12 % within 15
minutes

ABSTRACT – A1

CC034
Chemical

The Making of Polyurethane Composites Based on
Palm Oil with Bentonite-Chitosan Fillers as Anti-

Bacterial Coatings in Medical Devices

T Rihayat1 , Nurhanifa1 , S Riskina1 , Y Yunus2

1 Department of Chemical Engineering, Politeknik Negeri Lhokseumawe, 24301,
Aceh Indonesia

2 Department of Civil Engineering, Politeknik Negeri Lhokseumawe, 24301, Aceh
Indonesia

[email protected]

In this study, polyurethane synthesis was carried out using the prepolymer method
using the reaction of toluene diisocyanate (TDI) with palm oil-based polyols. To
provide heat and anti-bacterial properties in polyurethane coatings, the addition of
bentonite (B) and chitosan (K) into polyurethane samples was carried out. The
concentration of bentonite and chitosan used were 1.5%, 3.5% and 5.5%,
respectively. Polyurethane-bentonite-chitosan (PU-B-K) samples were analyzed
using FTIR to analyze the structure of chemical compounds. Preparation of bentonite
purification was carried out by adding cetyltrimethyl ammonium bromide solution
to the bentonite solution. The expected results in this study are the nature of the
bacterial resistance produced, while to see the characteristics SEM and FTIR tests
were performed. Meanwhile, to see the heat resistance TGA test will be performed

ABSTRACT – A1

CC037
Chemical

Chitosan Modified Bio-Fibre Based Board as
Antimicrobial and Anti-Crack Board

Suryani1 , Fitria2 , T Rihayat1 , Nurhanifa1 , T Y R Hasnah1

1 Department of Chemical Engineering, Politeknik Negeri Lhokseumawe, 24301,
Aceh Indonesia

2 Departement of Dermato Venereology , Medical Faculty, Universitas Syiah
Kuala, 23111, Aceh
[email protected]

Bio-based products represent a key component of global bio-economic growth. In
the process of forming a bamboo fibre-based bio board in this study begins with the
preparation of bamboo fibres to make it compatible as a filling material in polyester
polymers. The mixing of bamboo fibre is done by considering the composition of the
fibre material with the polymer used, namely polyester at a ratio of 90%: 10%, 80%:
20% and 70%: 30% of the total weight of the mixture. This mixture is added with a
natural substance that has been investigated to have resistance to microbial
contamination (anti-microbial), chitosan at a ratio of 1%, 3% and 5% by weight of the
total mixture of all components. Bio board printing is carried out using a hot press
(moulding) tool. The functionality of bio-based and conventional natural fibre-based
materials was investigated for a series of bio boards. The tests include tensile,
flexural, functional group tests using Fourier Transform Infrared Spectra FT-IR and
morphological testing using Scanning Electron Microscopy (SEM). The overall test
results put bio board with a ratio of 70%: 30% with the addition of chitosan as much
as 3% wt as the best sample with a tensile strength value of 147 Mpa, the flexural
value of 0.09 kN. The ester functional group (-COOR) was found at 1200 cm-1
through FTIR analysis, and this sample shows a good interface appearance of the
bond that occurs between the polymer and the filler under the electron microscope.

ABSTRACT – A1

CC036
Chemical

Making Polyurethanes from Castor Oil with the
Addition of Bentonite and Chitosan as Coating Paints

in the Application of Eco-Friendly Medical Devices

T Rihayat1 , K Y Putri2 , Y Yunus2 , S Riskina1

1 Department of Chemical Engineering, Politeknik Negeri Lhokseumawe, 24301,
Aceh Indonesia

2 Department of Civil Engineering, Politeknik Negeri Lhokseumawe, 24301, Aceh
Indonesia

[email protected]

In this research, castor oil is used as raw material for making polyols. This review
provides an overview of polyurethane coatings for the application of anti-bacterial
medical devices. The anti-bacterial properties used in this review are chitosan.
Chitosan is an amino polysaccharide that has a great structural tendency to produce
bioactive materials with innovative properties and a variety of applications,
especially in the biomedical field. To improve the physical and mechanical properties
of polyurethane such as heat resistance, modifications were made with the addition
of bentonite. This study with a variation of polyurethane / bentonite / chitosan ratio
of 2, 3 and 4 (% w / v), as well as tests conducted in the form of FTIR, SEM, TGA and
anti-bacterial tests. The results obtained for the best level of thermal stability in
polyurethane / bentonite / chitosan 4%: 4% with a temperature of 600.94 ℃ and
remaining weight 7.5 mg, while the anti-bacterial test obtained the largest inhibitory
zone in polyurethane / bentonite / chitosan 4%: 4% for Staphylococcus Aureus
bacteria at 7.66 mm and Escherichia Coli bacteria at 5.8 mm.

ABSTRACT – A1

CC008
Chemical Engineering

Transesterification Condition of Crude Palm Oil to
Biodiesel Using Solid Catalyst Zeolite/NaOH

E.Kurniasih, P.Pardi, Adriana
1 Departement of Chemical Engineering, Study Program of Industrial Chemical

Technology, Polytechnic State of Lhokseumawe, Aceh
2 Departement of Chemical Engineering, Study Program of Oil and Gas Production,

Polytechnic State of Lhokseumawe, Aceh
Email : [email protected] , [email protected]

Heterogeneous catalyst is prepared by impregnated nature zeolite using NaOH at
90oC for 2 hour. The heterogeneous catalyst ratio which used in transesterification
are 2.5% - 10% (w/w). The activity of catalyst measured with ester conversion in
biodiesel. This research consist of four step, (1) heterogeneous catalyst preparation,
(2) crude ester production, (3) biodiesel production, (4) heterogenous catalyst
analizing. The results show that NaOH at 2.5% (w/w) gave ester conversion at
63.51%, density 855 gr/cm3, kinematic viscosity at 4.2 Cst, acid value 2.3 mg KOH/gr,
iodine value at 82 gr I2/100 gr , flash point at 110oC.

ABSTRACT – A1

CC0026
Chemical Engineering

Synthesis and characterization of Pd-Cu-Zr/Al2O3
Composite Membrane Using Surfactant-Induced

Electroless Plating Technique

Ratna Sari, Ratni Dewi, Lukman Hakim

This study aims to develop a Pd-Cu membrane with the addition of Zr through the
coating process so as to increase the permeability and thermal resistance of the
membrane. A stable and uniform film layer is produced using surfactant-induced
electroless plating technique. The physical and chemical characterization of the Pd-
Cu-Zr membrane obtained was carried out so that the relationship of these
properties to hydrogen permeability can be known. Membrane characterization
includes morphological study and membrane thickness using scanning electron
microscopy (SEM, JEOL JSM-6519LA), Pd-Cu-Zr film composition using energy
dispersive X-ray analysis (EDX, JEOL JSM-6519LA) and membrane structure using X-
ray difraction (XRD, Shimadzu XRD-7000).

ABSTRACT – A1

CC067
Chemical Engineering

SYNTHESIS AND CHARACTERIZATION OF
MICROFILTRATION CERAMIC MEMBRANE BASED ON

FLY ASH AND CLAY MIXTURE USING SINTERING
METHOD

S Diana, R Fauzan, N Arahman, F Razi

Ceramic membrane technology has been lately being intensively developed for
microfiltration process. Fly ash is a waste from cement industries, while clay is a
natural resource that can be easily found to be used as economical mixed materials
in the production of ceramic membrane. This research was conducted to examine
the influence of fly ash-clay composition and the influence of sintering temperature
in the production on the characterization of ceramic membrane based on the
porosity, density, permeability, membrane pore size, and membrane crystal
structure. Membrane synthesis was carried out using different compositions of fly
ash: clay 35%:65% (M1), 45%:55% (M2), 50%:50% (M3), 55%:45% (M4), 65%:35%
(M5) and sintering temperatures of 900 ºC and 1000ºC for 4 hours. The results of
this research showed that M5 at 1000ºC was the most optimum condition for
ceramic membrane with porosity value of 38.97%, density of 1,0048 gr/cm3, and
permeability at 0.5 bar of 92.438 Lm-2h−1 bar−1. Based on the results of Scanning
Electron Microscopy (SEM) analysis, the ceramic membrane obtained from M5
treatment at sintering temperature of 1000°C could be classified as microfiltration
membrane with average pore size of 0.67 µm. In addition, the X-Ray Diffraction
(XRD) analysis showed that the crystal structure of the membrane was dominated
by the quartz phase (SiO2) and illite phase ((KH3O)Al2Si3AlO10(OH)2).

ABSTRACT – B1

CC048
Computer Sciences

Performance Analysis of CUDA by Implementation of
Hypergraph Partitioning for Parallelizing Sparse
Matrix-Vector Multiplication Using Quadro K4200

Murni*1 and T Handhika1
1 Computational Mathematics Study Center, Gunadarma University, 100 Margonda

Raya
Street, Pondok Cina, Depok, West Java, 16424, Indonesia

[email protected]

This paper addresses the performance analysis of sparse matrix-vector
multiplication through hypergraph partitioning techniques using CUDA GPU-based
parallel computing. Quadro K4200 is the GPU that is used in this paper. On the
implementation of matrix-vector multiplication, various sizes and types of matrices
are attempted. Our results show that, on the average scenarios with 2 partitions, 4
partitions, 8 partitions, 16 partitions and 32 partitions in 1024 threads, CUDA
performs up to 700× better than sequential programming.

ABSTRACT – B1

CC063
Computer Sciences

The simulation of evacuation from multistorey
building using NetLogo

D P Lestari1*, A Sabri2, T Handhika1 , Murni1, I Sari1, and A Fahrurozi
1 Computational Mathematics Study Center, Gunadarma University, 100 Margonda

Raya Street,
Pondok Cina, Depok, West Java, 16424, Indonesia
2 Department of Informatics, Gunadarma University, 100 Margonda Raya Street,

Pondok Cina,
Depok, West Java, 16424, Indonesia
[email protected]

The occupants of multistorey building are very vulnerable when disaster happens
(e.g. fire, earthquake, etc.). In the worst case, the only way to escape is through the
emergency stairs, in which they scramble with the occupants coming from the higher
floors. This situation often creates bottlenecks along the way, which in turn extends
the evacuation time. In addition, the panic situation increases the risks of accidents,
causing injuries or even death. In this research we use NetLogo to simulate the
evacuation process from typical multistorey building based on some configurations,
that are the placement of the emergency staircases, the number of occupants in
each floor, the number of storeys and the height of each floor. We set some
scenarios to analyze the correspondence between those configurations with
evacuation time. We conclude by suggesting the feasible configurations.

ABSTRACT – B1

CC064
Computer Sciences

Travel Time Estimation for Destination in Bali Using
kNN-Regression Method with Tensorflow

Murni1 , R Kosasih1 , A Fahrurozi1* , T Handhika1 , I Sari1 , D P Lestari1
1 Computational Mathematics Study Center, Gunadarma University, 100 Margonda

Raya Street, Pondok Cina, Depok, West Java, 16424, Indonesia
[email protected]

On a tour activities, travel time estimation is needed so that the travel itinerary goes
according to the plan. Travel time estimation is very important so we can estimate
the time needed to arrive to the destinations in travel itinerary. Therefore we need
a method that can estimate travel time from one place to another. In this study, we
propose the k-Nearest Neighbors Regression (kNN-Regression) method with
Tensorflow to construct estimation model. The proposed number of features in our
estimation model are 8 features, i.e. zone information, time information, day
information, weather information, temperature information, wind speed
information, humidity information, and precipitation information. The data obtained
from travel information from Ngurah Rai airport to Kuta Beach using GPS and
weather information using weather application in real time. We divide our data into
two groups: historical group consisting 177 data and testing group consisting 51
data. In the testing stage, kNN-Regression will find the historical data closest to the
testing data, so that the estimation value of travel time of some testing data is not
much different from the value of the nearest historical data. In the result, our
proposed model give the Mean Absolute Error (MAE) of 2.196078, Root Mean
Square Error (RMSE) of 2.977036294 and accuracy rate 88.1819%.

ABSTRACT – B1

CC031
Computer Sciences

Smart bed using voice recognition for paralyzed
patient

Nurul Fadillah , Ahmad Ihsan
Faculty of Engineering, Samudra University

[email protected]

Smart bed is a way to simplify homework especially for parents (elderly) and those
who have physical disabilities, disabilities or paralysis. They can move the height of
the bed according to their needs and comfort. The proposed system consists of voice
recognition modules, arduino, relay circuits, and adjustable beds. Voice recognition
modules need to be trained before they are used to recognize commands. After
successfully recognizing the voice command, the arduino directs the charge
according to the help of the relay circuit. Adjustable height of the bed can be
arranged in three different modes according to user comfort and needs. The
accuracy of the voice recognition module is measured in three bed height modes
with different conditions.

Keywords— Smart Bed Hospital, Voice recognition, Arduino

ABSTRACT – B1

CC032
Computer Sciences

intelligent system of automatic shrimp feeding

N Novianda 1 , F Liza 2 , I Ahmad 3
1.2.3 Program Studi Teknik Informatika Fakultas Teknik Universitas Samudra

Meurandeh Langsa Lama Village, Langsa City, Aceh 24354
[email protected]

Feeding on shrimp ponds is a problem for farm workers. Feeding must be considered
well in order to achieve the desired yields, feeding must be consistent and
measurable so that there is no excess in feeding so that it causes losses, because all
the feed provided is not necessarily completely consumed by shrimp, therefore the
need for technology can control shrimp feeding. Automatic shrimp feed technology
can be a solution to the problem of feeding that is measured and consistent to
support the productivity of shrimp ponds. Feeder Shrimp are automatically built
using the Arduino microcontroller module, RTC module (Real Time Clock), and the
feed throwing system. Every part of the design is tested and the final design is tested
on shrimp ponds. The shrimp feeding method with the working principle of the
shrimp feed device is shrimp feed thrown horizontally due to centrifugal force. With
the influence of the centrifugal force of the scatter plate, the feed will be thrown
throughout the surface of the pond. Feeding is controlled using Arduino, by
regulating the feeding time and the amount of feed to be given

ABSTRACT – B1

CC041
Computer Sciences

Detection of Empty Slots in the Car Parking System
Using Neural Network Method

Ahmad Ihsan, Nurul Fadillah, C R Gunawan
Faculty of Engineering, Samudra University

[email protected]

Many transportation equipment such as cars, motorbikes in Indonesia. Increasing
the volume of vehicle users will increase parking activities in every public place.
Parking is a condition of vehicle that is not temporary. The current parking system
still uses a conventional parking system that only uses parking lots and parking
attendants who control each vehicle that enters, and often do not pay attention to
the capacity of parking space that has been provided and often drivers go around
first to find an empty parking lot . Therefore, detection of empty slots in the parking
system is needed. To obtain this information, this study using neural network
method. Neural network is one of information processing systems designed by
imitating the workings of human brain in problem solving. The purpose of this
research is to determine which car parking slots are filled or empty parking slots.
The results of detection of car parking slots using neural network method were
carried out experiments on 20 objects with as many as 12 slots and with three slots
namely rectangles, squares and triangles. In the square slot with an area of 784 cm2
get accuracy results of 100%, rectangular slots with an area of 3,608 cm2 obtained
accuracy of 95% and a triangle slot with an area of 1,804 cm2 obtained accuracy of
90%.

ABSTRACT – B1

CC085
Computer Sciences

Web-GIS Application Of Agricultural And Food Crop

Salahuddin, Husaini, Anwar, Zulfan, Nanang P
1 Computational Mathematics Study Center, Gunadarma University, 100 Margonda

Raya Street, Pondok Cina, Depok, West Java, 16424, Indonesia
[email protected]

This paper discusses web-based applications in the agricultural and food crops
sectors in North Aceh district, Aceh Province, Indonesia. The agricultural and food
crops sector is a mainstay sector of the people of North Aceh and local governments
to move the economy and income of the local community. There are several superior
agricultural products and food crops including rice, corn, sweet potatoes, green
beans, long beans, cassava and potatoes. The North Aceh Government does not
have sufficient applications to manage agricultural sector products. The research
objective is to realize the independence of local food in order to support the national
food security program. The mechanism used to design and make agricultural and
food crop web applications starts from application design, application
construction/coding, application testing and implementation system. After testing
the web application by doing black box testing-white box and GUI testing to find out
the side of the application display, application behavior and application durability.
The results showed the application accuracy, stability and durability of the
application reached 97.4%. The application web-based of agriculture and food crop
management has been running as it should for mapping/GIS of superior agricultural
commodities and GIS potential locations of agriculture and food crops in North Aceh.

ABSTRACT – B1

CC014
Computer Sciences

Geographical Information System for Waste
Management for the Development of Smart City

Governance

N. Tri Suswanto Saptadi 1 , Phie Chyan 2 , Andrew Christopher Pratama 3
1,2,3 Informatics Study Program - Universitas Atma Jaya Makassar, Indonesia

[email protected]

The Era of the Industrial Revolution 4.0 has been able to change the paradigm of
government towards the contribution of Information Technology in providing fast,
precise and accurate services to the public for better information service needs.
Trends in Smart City Governance will also increase public and government
participation in utilizing application data so that they can provide suggestions and
criticisms quickly, easily and accurately. Makassar has a population of 1,469,601
people and is the highest compared to other regions in South Sulawesi. Makassar
has produced around 1,200 tons of waste per day that goes to Tamanagappa
landfills. Waste generated by each district is different from other districts, so it is
necessary to do integrated waste management. To overcome this the Makassar City
Government applies the Smart City concept that focuses on Smart Environment. This
concept aims to reduce and utilize waste and create better energy sources. The
research objective is to develop a system that can provide information to the public
so that the performance of the Makassar City Sanitation Office becomes effective
and integrated. Geographical Information System (GIS) is a system designed to
capture, store, manipulate, analyze, organize and display all types of geographic
data. GIS components consist of data, software, hardware, users, and applications.
Research using the Spiral method with tools or applications used by implementing
ArcView, ArcGis, and Map Info. GIS tools used are based on Open Source such as
Google Maps by providing various types of libraries that can be directly used. The
results showed 90% of respondents agreed that this application could be used.
Keywords—governance, smart city, GIS

ABSTRACT – B1

CC024
Computer Sciences

The Implementation of Augmented Reality in
Increasing Student Motivation: Systematic Literature

Review

Nur Farah Syuhada Mohamad Saadon 1 , Ibrahim Ahmad 2 , Ahmad Naim Chee
Pee @ Che Hanapi 3

Faculty of Information and Communication Technology, University Teknikal
Malaysia Melaka, Malacca, Malaysia
[email protected]

Technology has become part of our life. With changing times, technology has also
developed and the way humans work and thinking are different from the past. One
of the developing technology that has been achieved is Augmented Reality (AR). A
study shows that by adding technology in the classroom, teacher can apply this
technology to differentiate instruction, motivate students and include many skill
levels. A systematic literature review was conducted in March 2018 and updated in
January 2019. Augmented reality application is a suitable application in increasing
student motivation. Augmented reality success to increase student motivation
through ARCS model which is attention, relevance, confidence and satisfaction.
Results have shown that students that used augmented reality is more confidence
and show higher learning motivation in learning. This paper includes a literature
review of relevant research of motivation in augmented reality since in year 2013.

ABSTRACT – B1

CC088
Computer Sciences

Using TOPSIS Technique on Aid Business Capital for
Rural Community in Pidie District

Busra1, Khairunnisak2, Salahuddin2, Muhammad Arhami2*, Anita Desiani3
1 Lecture in department of commerce, Politeknik Negeri Lhokseumawe
2 Lecture in computer and information of technologi departement, Politeknik

Negeri Lhokseumawe
3 Faculty of Mathematic, Universitas Sriwijaya, Palembang

[email protected]

Pidie Regency Social Service has several programs, one of which is a social
empowerment program that is providing capital assistance in the form of goods for
the poor who own small businesses. Pidie Regency Social Service requires a decision
support system (DSS) that can take into account all criteria possessed by the
applicant to facilitate the decision-making process. The method used for the
Decision Support System in the provision of business capital is by using TOPSIS
method. This method was chosen because it was able to choose the best alternative
from several alternatives. The alternative in question is the name of the best
applicant based on the specified criteria. The criteria referred to are status,
dependents, type of business, business ownership. The result of the TOPSIS method
implementation process can sort the name of the applicant based on the biggest
preference value to the smallest preference value so that out of the 30 data tested,
17 people are entitled to receive assistance because of the value of the preference
is above 0.5.

ABSTRACT – C1

CC046
Physics

Structure Identification of Geothermal Field “X” Using
ML-SVD Method Gravity Data

M A Naufal 1 and M S Rosid 1,*
1 Physics Magister Programme, FMIPA Universitas Indonesia, Depok 16424,

Indonesia
[email protected]

Understanding the main geothermal components such as clay cap, reservoir, heat
source and faults structure can reduce the risk at the drilling stage. The role of the
faults is very important since it can be a recharge/discharge medium of geothermal
fluid. One method that can be used to identify the faults is gravity method. The
combination of the upward continuation and second vertical derivative (ML-SVD)
methods is carried out to characterize the geological structure both the slope
direction, depth estimation, dip estimation and type of structure. Upward
continuation is carried out from a height of 0 - 2000 meters with an interval of 250
meters. SVD filter is applied at each height level. ML-SVD result show that the fault
structures at study area have value of dip > 60º with various fault configuration.
Some faults are estimated at certain depth under a layer of rock. ML-SVD show
circular pattern that indicated as caldera structure. The fault orientation of the study
area tends SW-NE and NW-SE with dip perpendicular to the strike.

ABSTRACT – C1

CC047
Physics

Identification of Potential Distribution of Gold
Mineralization Zone of High Sulfidation Epithermal

System using Time Domain Induced Polarization
(TDIP) and Magnetic Method at "N" Mountain Area

M F Khoir 1 , and M S Rosid
Geophysics, FMIPA, Universitas Indonesia, Depok 16424, Indonesia

[email protected]

The high gold commodity as well as the Pongkor production field that has existed
since decades ago made it necessary to find a new potential zone for gold mining
production. To find out the zone of gold mineralization and its continuity,
geophysical studies then conducted by using the methods of Time-Domain Induced
Polarization (TDIP) and magnetic. TDIP data consisting of resistivity and chargeability
data are interpreted to determine alteration zones and subsurface mineralization
that are correlated with magnetic data that has been inversed in 3D to obtain
susceptibility parameters. Based on the value of resistivity in the study area, the
argilic alteration zones are thought to has a value of < 50 Ohm. Silisification
alteration zones supposedly has the value > 50 Ohm. m. The value of the
chargeability in the mineralized zone indicated has a value of 100-810 m.sec. also
study in the area of mineralized zone have a value in the range susceptibility -0073
to -0.021 cgs. From those parameter of the mineralized zone, it is assumed that the
mineralization zone is in the eastern part of the study area and oriented North-South
direction with the orientation of the main fault.

ABSTRACT – C1

CC069
Physics

Reservoar Characterization with Acoustic Impedance
Inversion and Multiatribute Method on “Essen” Field,
Talang Akar Formation, Sub-Ciputat Basin, North West

Java

E S Nugroho 1 , A Riyanto 1 , M Suardana 2
1 Department of Geosciences, FMIPA, Universitas Indonesia, Depok, Indonesia,

16424.
2 Pertamina UTC, Gambir, Kota Jakarta Pusat, Daerah Khusus Ibukota Jakarta

10110
[email protected]

Acoustic impedance and multi-attribute seismic inversion seismic are a number of
seismic methods that can be used to map sandstone reservoir distribution. Using
this method, we can separate the sandstone and shale well in the Talang Akar
Formation found in the "Essen" Field, Ciputat Sub-Basin. Both of these methods will
be compared with each other in order to get more valid results in sandstone
reservoir mapping. The acoustic impedance inversion seismic method used in this
study is a model based method. While the multi-attribute method used is the neural
network in mapping gamma ray volume, shale volume, and porosity. The inversion
results are not able to image the sandstone distribution good enough because the
range is too large and there is overlapping on the acoustic impedance values of
sandstones with ranges (8000-12000) (m/s)*(g/cc). The results of the gamma ray
multi-attribute, shale volume and porosity, have been shown to consistently show
the distribution of sandstones that have a trend in the distribution of NW-SE (North
West-South East) reservoir zones. From the results of the analysis carried out there
are several potential areas that have the potential to become the next development
area, namely the distribution of sandstones in the northern part with high effective
porosity, and good seals. In the south with a large volume of sandstones, as well as
the distribution formed on the channel surrounding the fault.

ABSTRACT – C1

CC011
Physics

Pollutant Absorber Design to Minimize Air Pollution
Emissions from Industry

Y Ruhiat, Y Guntara

[email protected]

Pollutants emitted from industries vary depending on the type of fuel and the height
of the chimney used. The higher the chimney used, the further the pollutant distance
emitted. In this research, Pollutant Absorber was made with a condensation system
using activated coconut shell charcoal. The research method uses Research &
Development with the Design for Production (DFP) approach. In developing the
model, pollutant emission analysis is carried out: before entering the chimney,
during the chimney, and after exiting the chimney. Then, in designing tools to design
absorbent devices, chimney designs with coconut shells are made as absorbent. In
designing and making tools, it is done in two ways, namely simulation and testing.
The results of the research are models of the distribution of air pollutants from
industry, which can be accessed on Android, air pollutant absorbent designs emitted
from industry, and prototype devices capable of absorbing various types of
pollutants emitted through the chimney.

ABSTRACT – C1

CC066
Physics, Mechanical Engineering

A study on nitriding alloy steel in INTI Plasma Focus
Machine

A Singh, R Jeyagopi, T O Teh, S Manmeshpal, S H Saw and S Lee

[email protected]

The INTI Plasma Focus machine was used to irradiate AISI 304 stainless steel samples
with nitrogen ion beams to improve the hardness of the sample surface. The
increase in hardness was plotted as a function of pressure at constant 12 kV
operation. Optimum hardness was found at 1.5 Torr using the Vickers Hardness test.
Computation with the Lee codes produces a plot of ion beam energy versus pressure.
The plot shows that the optimum ion beam energy of 7.3 Joules occurs at 1.5 Torr.
Thus we have correlated the optimum hardness of the treated sample surface to the
optimum ion beam energy.

ABSTRACT – C1

CC043
Physics

Fault Plane Estimation Through Hypocentres
Distribution of the July-August 2018 Lombok
Earthquakes Relocated by Using Double Difference

Method

M S Rosid 1 , R Widyarta 1 , T Karima 1 , S K Wijaya 2 , and S Rohadi 3
1 Geophysics, FMIPA Universitas Indonesia, Depok 16424 Indonesia.
2 Physics Departement, FMIPA Universitas Indonesia, Depok 16424 Indonesia.
3 Research and Development Center, Meteorological, Climatological, and

Geophysical
Agency (BMKG), Jl. Angkasa 1 No. 2, Kemayoran, Jakarta, Indonesia.

[email protected]

Indonesia is actually located in collisions between three large plates of Eurasia, Indo-
Australia, and Pacific. It causes earthquakes to occur frequently in several regions,
one of which occurs sequentially the 5 big shocks in Lombok in period of July-August
2018. There is a Flores thrust fault in the North of the Lombok Island region. The
objective of study is determining whether the earthquakes sequence is related to
the fault. The study is done through the analysis of relocated 321 of 489 hypocenters
of the earthquakes acquired from 13 BMKG stations in July-October 2018. The
hypocenters are relocated by using the Double-Difference method. The events are
focused only with magnitude > 3.5 M. The relocation result is validated by the RMS
residual histograms with the average value close to 0. The results show that the
seismic activity mostly spread in the northern part of the Island of Lombok. The
distribution of the epicenter points tends to form a pattern oriented from West to
East in the northern region of the island which is thought to be the zone of the faults.
The events most likely have not generated and not laid along the Flores fault.

ABSTRACT – C1

CC074
Physics

Thermal Conductivity of Some Marble Stones
Available in South Aceh District

L. Lindawati, N.F.Yuliza, I. Irwansyah

[email protected]

Thermal conductivity is a fundamental property for insulating purpose when they
are used as a building material. It controls the temperature distribution within the
building. In this paper, the thermal conductivity of marble samples from South Aceh
District are reported. The samples were collected from three different areas in South
Aceh District. The thermal conductivities of the samples were determined by using
laboratory measurements. The results showed that samples of marble stones
existing in South Aceh District have low thermal conductivity values. It reveals that
marble stones existing in South Aceh District are appropriate to be applied as
thermal insulating material.

ABSTRACT – C1

CC061
Physics

Q-switched erbium-doped fiber laser incorporating
multi-walled carbon nanotubes as a saturable
absorber

C Huda, M Yasin, SW Harun, AAA Jafry, AHA Rosol
1 Department of Physics, Faculty of Science and Technology, Airlangga University,
Surabaya (60115) Indonesia; Department of Physics Education, Faculty of Science

and Technology, Universitas Kanjuruhan Malang, Malang, Indonesia.
2 Department of Physics, Faculty of Science and Technology, Airlangga University,

Surabaya (60115) Indonesia.
3 Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur,

Malaysia.
4 Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, 81310

Skudai, Johor, Malaysia.
*[email protected]

We demonstrate the generation of Q-Switched Erbium-Doped Fiber Laser (EDFL) by
employing a Multi-Walled Carbon Nanotubes (MWCNT) as saturable absorber (SA)
based on PVA thin film. The SA was prepared by embedding MWCNT into PVA via
stirring and ultrasonication. A stable Q-Switched pulse train operating at 1559.4 nm
was successfully generated by employing MWCNT SA into a laser cavity. The
repetition rate and pulse width of the laser were 52.85 – 151.9 kHz and 6.313 – 2.395
µs, respectively. The maximum output power and maximum pulse energy obtained
are 0.052 mW and 20.967 nJ, respectively at a pump power of 30.44 – 63.41 mW.
This demonstration proves that the MWCNT based SA is suitable for generating Q-
Switched fibre laser at 1.5 µm region.

ABSTRACT – C1

CC019
Physics

Characterization of Lombok Earthquake on July-
August 2018 Using Focal Mechanism Analysis

T Karima 1 , S K Wijaya 2,* , M S Rosid 1,* , S Rohadi 3 , Y H Perdana 3
1 Geophysics, FMIPA Universitas Indonesia, Depok 16424, Indonesia
2 Physics Department, FMIPA Universitas Indonesia, Depok 16424, Indonesia
3 Badan Meteorologi, Klimatologi, dan Geofisika, Jakarta 10610, Indonesia

[email protected], [email protected]

Focal mechanism study is carried out on 5 major earthquakes that occurred in
Lombok on July-August 2018. The KIWI program is applied here to compare the
parameters of the 5 earthquake sources. The wave components at various stations
are inversely processed by the KIWI program to obtain the moment tensor. Green’s
Function is also implemented to create synthetic waves representing the
observation waves. Source parameters are taken from the synthetic waves from the
five recorded events, and it was found that the 5 earthquakes on July 29th, 2018,
August 5th, 2018, August 9th, 2018, & two earthquakes on August 19th, 2018 have
strike values varying between 61o-74o, dip values between 18o-36o, and rake values
between 75o-93o. These five earthquakes have similar source parameters, and have
focal balls which state that the type of fault in these earthquakes are thrust faults.
The similar source parameters, the close range of time of occurrence and hypocenter
distances indicate that the earthquake events are most likely caused by the same
fault. The fault seems to be located along the north coast of Lombok Island, and
south of Flores Back-arc Thrust.

ABSTRACT – C1

CC044
Physics

Identification of Fault Structure in Lombok Region,
West Nusa Tenggara Using the Tomography Method
Based on Lombok Earthquake Data from July-August

2018

R Widyarta 1 , S K Wijaya 2,* , M S Rosid 1,* , and S Rohadi 3
1 Geophysics, Universitas Indonesia, Depok 16424 Indonesia.
2 Physics Department, Universitas Indonesia, Depok 16424 Indonesia.
3 Research and Development Center, Meteorological, Climatological, and

Geophysical
Agency (BMKG), Jl. Angkasa 1 No. 2, Kemayoran, Jakarta, Indonesia.

[email protected], [email protected]

Lombok and Nusa Tenggara are one of the regions in Indonesia that have quite
complex tectonic arrangements. With this order, not infrequently in the region there
are often natural disaster phenomena. One of the most striking things is the
occurrence of a series of earthquakes of magnitude Mw > 5.0 that rocked the
northern region of the island of Lombok on 29 July 2018 (Mw = 6.4), 5 August 2018
(Mw = 6.9), 9 August 2018 (Mw = 5.9), 19 August 2018 (Mw = 6.3 and 6.9) and August
25, 2018 (Mw = 5.5). This study aims to identify the condition of fault structures
under the surface of the earthquake region using the tomography method. This
method utilizes earthquake travel time recording of the data recorded on 15
recording stations spread over several areas. The tomogram results show the
contrast of anomaly values in the Vp and Vs models, which after being matched with
focal mechanism data, it is indicated that the contrast of the anomalous values is
associated with the presence of fault structures that have a dip angle of about ± 20-
30 ° and a thrust fault type. This thrust fault is then indicated as the cause of the
earthquakes with a magnitude Mw > 5.0, which shook the northern part of the island
of Lombok in July-August 2018. According to the tomography result, the fault is
located closer to the north side of Lombok Island than Flores Backarc Thrust.

ABSTRACT – A2

CC039
Chemical

Refining Lemongrass Oil (Cymbopogon Nardus L) by
Utilizing Sunlight Using Solar Cells (Photovoltaics)

N Safitri1 , R Syahputra1 , K Y Putri2 , T Rihayat3 , Nurhanifa3
1 Department of Electrical Engineering, Politeknik Negeri Lhokseumawe, 24301,

Aceh Indonesia
2 Department of Civil Engineering, Politeknik Negeri Lhokseumawe, 24301, Aceh

Indonesia
3 Department of Chemical Engineering, Politeknik Negeri Lhokseumawe, 24301,

Aceh Indonesia
[email protected]

Sunlight is one of the very abundant energy. In its use, many things can be applied
such as converting the sunlight into electrical energy with the help of solar cells. In
this research, 4 solar cells are used with a capacity of 1000 wp, so in a day they are
able to produce 28,000 watts of electricity. This is a very potential electrical energy
because it is commonly used to facilitate the process of refining essential oils. The
results and the quality of oil obtained in refining research by utilizing sunlight using
solar cells shows that the refining time of 6 hours is the best time for the refining
process, while the 1 day drying time is better than 2 and 3 days. This is consistent
with the oil yield obtained. The yield that has been produced is tested based on
Indonesian National Standard (SNI) 2385-2006 through density and Bias Index tests.

ABSTRACT – A2

CC100
Chemical Engineering

INCREASED ABSORPTION CAPACITY OF
ORGANOKAOLIN ADSORBENTS IN ABSORB METALS

USING MICROWAVE TECHNOLOGY

Syafruddin, Alfian Putra, Suci Ramadhana, Pardi
Teknologi Rekayasa Kimia Industri, Teknik Kimia, Politeknik Negeri Lhokseumawe

[email protected]
This study about the absorption of iron and magnesium as metal ions in water
solutions and kaolin were used as adsorbents. The power of Kaolin as adsorbent
still very low so it is necessary to modify kaolin using acyl sulfonate (ABS) surfactant
which is an organic compound. The aim is to increase the absorption capacity of
kaolin in absorbing metal ions contained in water using modified kaolin to get
effective absorption results in absorbing metal ions, especially iron, this research
was carried out by varying microwave irradiation time 5, 15, 30, 50 and 80 minutes
using surfactant kaolin modification and without surfactant modification, the waste
used was artificial waste with an initial concentration of 100 mg / l. The samples
were analyzed using Atomic Absortion Spectrophotometers (AAS), while the
characteristics used were Fourier Transform Infrared Sectroscopy (FTIR) and
Scaning Electron Microscope (SEM). Kaolin modification with microwave use in the
adsorption process results in a decrease in artificial Fe waste at 3 minutes
irradiation time on modification of efficiency reduction of 72% and Mg waste at 30
minutes decreased by 61%.

ABSTRACT – A2

CC071
Chemical Engineering

WASTE MUD IN OIL AND GAS CEPU PPSDM USING
BIOREMEDIATION

Yanty Maryanty, Sigit Hadiantoro, Anang Takwanto, Kamilia, Linga Ardhanariswari

Teknologi Rekayasa Kimia Industri, Teknik Kimia, Politeknik Negeri Lhokseumawe

[email protected]

Bioremediation is one method of treating hazardous waste environmentally friendly.
This method of waste treatment Utilizes a microbial activity to treat hazardous
waste. Oil sludge from the processing of petroleum in PPSDM Migas Cepu is one of
the dangerous wastes, so it must be processed first before being discharged into the
environment. The bioremediation process of oxygen and nutrients is needed by
microbes to decompose harmful compounds in the oil sludge so that the addition of
a bulking agent in the form of rice husk and sawdust is needed. Bacteria that help
the bioremediation process are heterophilic bacteria, heterophilic bacteria used in
this study are aeruginous Pseudomonas, Bacillus cereus and Bacillus spheres. This
study aims to determine the effect of the addition of bulking agents on
bioremediation and Determine the performance of heterophilic petroleum
degrading bacteria in waste. The results of this study indicate the addition of a
bulking agent Gives a fairly good result in bioremediation in the reduction in TPH and
TCLP values Compared to bioremediation reactors without the addition of a bulking
agent. Petrophilic Also bacteria play an important role in the bioremediation process
as evidenced in the decline in TPH and TCLP values. The addition of a bulking agent,
in a variable one (25; 75) there was a decrease in the value of% TPH namely 56.22%,
variable 2 (40:60) there was a decline in the value of% TPH 55.95 and in variable 3
there was a decrease in the value of% TPH by 49, 73%. During the bioremediation
process, the increase is in the pH value from 3. 6 to 6.5 indicates the presence of
bacterial activity in degrading oil sludge waste. Percent of Percent Nitrogen and
Carbon in bioremediation Decreased by 80 and 56%. The success of the
bioremediation process was demonstrated by the results of FT-IR analysis, with
peaks of 3418.39 cm -1, 2924.65 cm-1, and 1746.22 cm-1

ABSTRACT – A2

CC058
Chemical Engineering

A Laboratory Scale Synthesis of Ethanol from
Agricultural Waste as Bio-based Solvent for Waxy-

Paraffinic Crude Oil Mitigation

M. K. Afdhol1 , Hidayat. F1 , M. Abdurrahman1 , U.Z. Husna1 , N.P.
Sari1 , R.K. Wijaya1

1 Department of Petroleum Engineering, Faculty of Engineering , Universitas Islam
Riau. Jl. Kaharuddin Nasution No.113 Km. 11, Pekanbaru, Riau – 28284, Indonesia.

[email protected]

Paraffin is a problem commonly faced in petroleum production. The presence of
paraffin can inhibit the process of oil flow. Mitigation methods commonly used to
overcome this problem is by using chemical injection, which is solvent. In this
research, a laboratory experiment was conducted to make bioethanol from
agricultural waste that are rice husks and corn cobs. This bioethanol functions as a
solvent that is used to reduce the pour point in a waxy-paraffinic crude oil sample.
Oil samples were mixed with bioethanol with different mixing ratios, including 5%,
10%, 15%, 20% 50%. The results showed that the alcohol content of the Husk and
Corncob rise was 11% and 9% respectively. Then, the best result from mixing of
bioethanol with oil reduced the pour point from 43.3 to 41 at mixing ratio of 50%.

ABSTRACT – A2

CC052
Chemical Engineering, Biotechnology

Inhibition of Free Fatty Acids generation in Crude
Palm Oil during storage time by using UV-C light

treatment

S D Said1*, T Maimun1, T M Asnawi1 and A Muslim1
1Bioprocess Engineering Laboratory, Chemical Engineering Department, Faculty of

Engineering, Syiah Kuala University, Darussalam-Banda Aceh, 23111, Indonesia
[email protected]

During the lengthy storage of crude palm oil (CPO), free fatty acid (FFA)
concentration generated in the oil tends to increase which will affect the quality of
CPO as the result of lipase enzymatic degradation of triglycerides. Currently, the
conventional thermal processes in CPO storage tanks still applied to reduce the FFA
formation. However, the thermal method is not very effective in reducing FFA for
prolonged heat exposed due to deteriorate the CPO quality and high energy
consuming. The alternative UV-C light technique gives some advantages compare
with thermal treatment i.e less energy consumption, simple method, cheaper
investment and low-cost operation. This study is aimed to evaluate the effects of
UV-C light on reducing FFA concentration in CPO. UV-C light was directly exposed to
the CPO samples for irradiation time; 2, 4, 6, and 24 hours and then keep them at
room temperature of 30 oC for 3 weeks and the other treatment was evaluated on
the periodic mode of the UV-C light exposed to the CPO samples for irradiation time;
6, 12, 18 and 24 hours for 3 weeks of storage time. The FFA concentration of CPO
samples was analyzed by using sodium hydroxide solution and FTIR spectra by FTIR
spectrometer before and after treatment. The results showed that UV-C light has
the ability to deactivate lipase enzyme and decrease FFA generation in CPO. The FFA
concentration in CPO after 3 weeks storage time at UV-C light exposing time of 0
(without UV light exposed), 6, 12, 18, and 24 hours were 0.9262, 0.8702, 0.7130 and
0.4379%, respectively.

ABSTRACT – A2

CC017
Chemical Engineering, Biotechnology

Black Liquor Pretreatment of Concorb and Enzymatic
Hydrolysis for Lignocellulosic Bioethanol

Muryanto muryanto and Yan Irawan
Research Center for Chemistry – LIPI, Kawasan Puspiptek Serpong, Tangerang

Selatan 15314, Indonesia
[email protected]

Lignocellulosic bioethanol from corncob could be a promising alternative fuel
because of abundant resources, and it will not interfere with the food supply.
Pretreatment is the first step in a lignocellulosic bioethanol process. One of the
effective pretreatments is alkaline pretreatment because it gives the cellulose-rich
material for enzymatic hydrolysis. However, it produces black liquor as wastewater
that provides environmental impacts. The black liquor from Empty Fruit Bunch (EFB)
pretreatment was collected and used for pretreatment of corncob to reduce
wastewater from bioethanol production. The pretreatment process was conducted
in a 5-litre reactor at the variation of temperature and time. The result using black
liquor was compared with pretreatment by using NaOH solution. The pretreated
corncob was hydrolysis with commercial cellulose enzyme and converted to ethanol
by two kinds of the microorganism; Saccharomyces cerevisiae and Rhizopus oryzae.
The delignification of corncob using EFB-black liquor was 37-62%. The ethanol
production after saccharification and fermentation process by Saccharomyces
cerevisiae and Rhizopus oryzae reached 39.75 gl-1 and 32.39 gl-1 respectively.

ABSTRACT – A2

CC050
Chemical Engineering, Environmental Technology, Green and Social Innovation

Utilization of Castor Oil As Local Demulsifier For Oil
Water Emulsion In Laboratory Scale

Tomi Erfando1* , Devin Theo Handoko1 , Idham Khalid1
1 Departement of Petroleum Engineering, Universitas Islam Riau Kaharuddin

Nasution
No.113,Pekanbaru, Riau, Indonesia

[email protected]

Crude oil is generally mixed with water at the time of production. The oil and water
mixture at the time of production is known as an emulsion. In addressing the
problem of emulsions requires the addition of a chemical compound, commonly
referred to as demulsifier to be able to separate water and oil. This research aims to
make the formulation of demulsifier locally based on castor oil. This castor oil will be
processed into a surfactant compound because it has a very high saturated fat
content of 33% of the total weight of the seeds. The manufacture of this demulsifier
using saponification method is to heat the castor oil and add the KOH dissolved in
aquades, as well as the added glycerin to taste. Then, the process of testing
demulsification with a sample of the emulsion of crude oil that has been prepared
using the bottle test method. From the test results of several temperature
conditions, different concentration and time obtained the best test results by
demulsifier in the separation of water and oil at a temperature of 80 0 C and
concentrations of 5 ml. In sample 1 demulsifier soap and the soap demulsifier added
lemon separates the water by as much as 38 ml and 39 ml, meanwhile, the
commercial demulsifier separates the water by 32 ml. Thus, it can be concluded that
the demulsifier made from castor oil has a better ability than commercial
demulsifier..

ABSTRACT – B2

CC082
Mathematics, Mechanical Engineering

Static Analysis of Functionally Graded Coated Plate on
Elastic Foundation Based on Levy Method

Abdolreza Toudehdehghan

[email protected]

Levy method for bending analysis of Functionally Graded Coated plate resting on a
simple elastic foundation is presented based on classical plate theory. Two models
were considered for composite coated plate. These two models were named HC
model and FGC model. The HC model was consisting of ceramic coated layer and
metal layer. The FGC model was consisting of Functionally Graded Material (FGM) as
a coated layer and metal layer. The material properties of FGM layer are assumed
varying exponentially along the thickness direction. Also, the material properties of
other layers are assumed homogeneous. Finally, the effect of the FGM layer, as well
as, the elastic coefficient of foundation are presented and compared with results of
HC model.