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Jurnal Inotera

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Published by Politeknik Aceh Selatan

ISSN : 25487574 EISSN : 25811274 DOI : -

Computer Science & IT Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Articles 13 Documents

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Search results for , issue "Vol. 5 No. 2 (2020): July - December 2020" : 13 Documents clear

Numerical Simulation of the Gas-Liquid Flow Inside a Horizontal Static Mixer Ryan Anugrah Putra; Akhlisa Nadiantya Aji Nugroho
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

The gas-liquid flow inside a horizontal static mixer was numerically investigated by using Euler-Euler Computational Fluid Dynamics (CFD) simulations. The results confirm that the liquid superficial velocity plays a significant role on the mixing behavior of the gas and liquid. The mixing behavior in this present study at a liquid superficial velocity of 0.2 m/s was the worst both axially and radially. Increasing the liquid superficial velocity significantly improve the mixing between gas and liquid. However, the unwanted gas layer still can be found at the superficial liquid velocity less than 0.8 m/s. A good mixing behavior in this study was achieved at a relatively high velocity (i.e. larger than 0.8 m/s).

Application of Kumon Learning Model to Improve Student Learning Outcomes in Economic Math Subject Nur Fajri; Asmaidi Asmaidi
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

This research aims to study the effectiveness of Kumon learning model against the increasing of student grade at Economic Math subject at STIMI Meulaboh. Quasi experiment method with pretest-posttest is used. The population used by model is students of Management Economic at STIMI Meulaboh that follow Economic Math subject at odd semester of the 2018/2019 school year. The students at Room 1 consist of 30 students are chosen as sample. The test instrument is used to collect the data for research. The research implementation procedure provides pretest in the beginning of the meeting and compares the result with posttest after Kumon learning model is applied on all samples. The result of pretest and posttest are used as research data. The research result point out that Kumon Learning Model helps students to increase their grade at Economic Math subject at STIMI Meulaboh..

The Study of the Mineral Composition in the Granite Rocks in the Village of Lhok Pawoh, South Aceh District Bakruddin Bakruddin; Arnold Rikardo Sihombing; Zulkarnain Jalil
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

The potential of non-metallic mineral resources in South Aceh is very diverse, such as one of the granite rocks located in Lhok Pawoh village, Sawang subdistrict. Granite rocks have a distinctive characteristic based on its constituent minerals. The purpose of this research is to obtain information about the constituent minerals in the granite rocks of Lhok Pawoh village. The research method uses X-ray Fluorescence (XRF) technique, then the observation of surface morphology is done by Scanning Electron Microscopy (SEM). The XRF test results show that there are 14 phases of mineral identified as the constituent mineral phase, where the very dominant SiO2 mineral reaches 67.9%, then the mineral phase of Al2O3 by 15%, and the third Fe2O3 of 6.03%, and is followed by the other minor phase of minerals. As for the results of the morphological observation, the dominant element appears in several factors, namely Si, O, and Al. From the two testing and analysis methods can be concluded that the granite stone of the village Lhok Pawoh is dominated by silica elements, which can visually be seen in white.Copyright © 2018 Politeknik Aceh Selatan.

Gas-Liquid Flow in a Vertical Pipe Equipped with a Double Helical Swirl Separator Element Ryan Anugrah Putra; Akhlisa Nadiantya Aji Nugroho; Aditya Ramadhona; Erick Wisnu Kuncoro Baroto
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol5.Iss2.2020.ID110

Two different gas-liquid flow behavior downstream a double helical swirl element inside a vertical pipe was observed in our preliminary experiment. The present Computational Fluid Dynamics (CFD) study confirms that the dynamics of gas-liquid flows inside the swirl separator is highly influenced by the liquid superficial velocity. The separation behavior in this work at a liquid superficial velocity of 0.1 m/s was the worst both axially and radially since the gas core cannot be sustained up to the outlet. The separation condition was improved by the increase of the liquid superficial velocity. The best separation condition in this study was achieved at the liquid superficial velocity of 1.0 m/s where the dense gas core can be maintained up to the outlet.

SEIITR Model for Diabetes Mellitus Distribution in Case of Insulin and Care Factors Nur Fajri; Sanusi; Asmaidi
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol5.Iss2.2020.ID113

This research is done to learn diabetes mellitus type SEIITR with insulin and care factors. Mathematical model type SEIITR is a mathematical model of diabetes in which the human population is divided into five groups: susceptible humans (Susceptible) S, exposed (Exposed) E, infected I without treatment, infected (Infected) IT with treatment dan recovered (Recovery) R. The SEIITR model has two fixed points, namely, a fixed point without disease and an endemic fixed point. By using basic reproduction numbers (R0), it is found that the fixed point without disease is stable if R0 < 1 and when R0 > 1. Then the fixed point without disease is unstable. The simulation shows the effect of giving insulin to changes in the value of the basic reproduction number. If the effectiveness of β decreases, the basic reproduction number decreases too. Thus, a decrease in the value of this parameter will be able to help reduce the rate of diabetes mellitus in the population.

Developing the Students' Reading Comprehension through Interactive Approaches by Using Short Stories (An Experimental Research at South Aceh Polytechnic) Hasbaini; Amsar Yunan; Asmaidi
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol5.Iss2.2020.ID115

This research was conducted to see the effectiveness of using short stories in teaching reading comprehension. The teaching model was used an interactive approach to be developed the reading skills of second semester students at the Department of Computer Engineering, South Aceh Polytechnic. The reading ability of students was explored and to be found the right teaching model, then the aspects of the ability to be seen was understanding the meaning of words, sentence intentions, information, problems, opinions, recommendations, sentence structure, analysis and communication and student responses after the application of the teaching model in the classroom. After treatment, there was an increase in students' reading comprehension skills especially in the experimental class after using short story teaching materials with interactive approach teaching models to obtain an average value of pre-test = 55, and post-test = 77.67. Whereas in the control class only got a pre-test value = 49,64 and post-test = 67,86. Then there was a significant difference in the scores of the two classes in the post-test scores (77,67-67,86) namely 9,81. Meanwhile, from questionnaire data, 87% of students responded very well and the remaining 13% responded well to the use of short stories with interactive approach teaching models. As well as answering enough options and less as much as 0%. From the responded above, which has helped develop student confidence, collaboration, self-ability and group work. Of course this research was far from perfection and needs to be improved in the future with other teaching methods, while still providing motivation to students to continue to be improved their learning, especially reading skills. So from the results of this simple study it can be recommended that, the use of short stories in teaching comprehension reading with interactive approach models got a significant increase in students' ability in reading comprehension than conventional learning models.

Design of Alcohol Percent Detection Devices for Food Based on Arduino Uno Fera Anugreni; Rudi Arif Candra; Hasbaini Ben; Hardisal; Fardiansyah; Irwansyah Syam
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol5.Iss2.2020.ID118

Tape merupakan makanan tradisional yang banyak dikonsumsi oleh masyarakat. Tape dibuat menggunakan ragi dengan cara difermentasi selama 3-4 hari yang ditutup menggunakan daun pisang untuk menghasilkan rasa yang manis. Disamping itu tape juga mengandung alkohol dari hasil fermentasi ragi dan beras, jika terlalu banyak mengkonsumsi tape, maka badan akan terasa panas karena tidak mengetahui berapa persen alkohol yang mengandung pada tape tersebut. Untuk mengatasi hal seperti itu terjadi maka perlu dirancang alat pengukur kadar alkohol pada makanan tape agar bisa mengetahui persentase alkohol pada tape tersebut. Rangkaian Perancangan Alat Pendeteksi Persentase Alkohol pada Makanan Berbasis Arduino Uno terdiri dari tiga bagian, yaitu bagian input, bagian kendali dan bagian tampilan. Dibuat untuk mempermudah proses Perancangan Alat Pendeteksi Persentase Alkohol pada Makanan berbasis Arduino Uno. Dimana sensor MQ3 digunakan sebagai masukan untuk mendapat hasil persentase alkohol dari tape, Arduino Uno dapat terprogram secara real time dan hasil data persentase akan ditampilkan di LCD I2 Inc. Berdasarkan hasil pengujian dapat disimpulkan bahwa sensor MQ3 yang berfungsi sebagai input dan mengeluarkan output berupa suara pada buzzer. LCD berfungsi sebagai menampilkan persentase alkohol pada tape. Pengujian yang telah dilakukan mendapatkan hasil kandungan persentase alkohol pada tape dengan pengujian lima hari berturut-turut dengan rata-rata yaitu, 22%, 39%, 46%, 57%, dan 67%.

Utilization of Rapidminer using the K-Means Clustering Algorithm for Classification of Dengue Hemorrhagic Fever (DHF) Spread in Banda Aceh City Sanusi; Juniana Husna
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol5.Iss2.2020.ID119

Dengue Hemorrhagic Fever (DHF) is still a serious problem in Banda Aceh City. The grouping of dengue disease distribution areas can use data mining techniques through the K-Means Clustering Algorithm by involving several factors that influence it such as population density, rainfall, air humidity and temperature. The purpose of this study is to try to create a distribution cluster group that is included in the high category (C1), medium (C2), and low (C3) in 9 sub-districts in the city of Banda Aceh. The data used in this study are secondary data during the period 2010 to 2017, which includes population density data obtained from the Banda Aceh City BPS office, rainfall, humidity, temperature were obtained from the BMKG Indrapuri Aceh Besar office and data on dengue cases were obtained from the Banda Aceh City Health Office. The results showed that up to 4 iterations of K-Means Clustering was good enough for the classification of dengue case data. The high cluster group (C1) is Baiturrahman, Kuta Alam and Syiah Kuala sub-districts, the medium cluster group (C2) is Jaya Baru, Banda Raya and Ulee Kareng sub-districts, then the low cluster group (C3) is Meuraxa and Kuta Raja.

Impact of Fire on Mechanical Properties of Lightweight Bricks Containing Calcium Carbide Residue Cut Rahmawati; Meliyana Meliyana; Ibnu Thufail; Muhtadin Muhtadin; Muhammad Faisal
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol5.Iss2.2020.ID122

Calcium carbide residue is an unutilized by-product. It contains high calcium and can be used to produce cementitious. The variation of Calcium carbide residue used is 0%, 5%, and 15%. This study focused on the reduction of the cement used and lightweight bricks resistance toward the fire condition. Moreover, the tests were carried out by examining the compressive strength before and after lightweight bricks burned, X-ray fluorescence (XRF), Scanning Electron Microscope (SEM), and Fourier-Transform Infrared Spectroscopy (FTIR). The result showed a decrease of compressive strength on 10% and 15% carbide variation. At the combustion temperature of 250 °C, micro-cracking occurred at 0% and 5% carbide specimens, while not only cracking but also spalling and crazing were at the specimens with 10% carbide. The 5% variation of calcium carbide residue can increase the compressive strength and endurance at 250 °C. At the higher temperature, the compressive strength was decreased, and the material was damaged. IR-spectroscopy test results showed that 5% carbide composition achieved the highest compressive strength because the amount of H2O2 used reacts with CaO.

A Performance of Power System Installation Tool Kits Electricity 1 ɸ and 3 ɸ As Practicum Kits at the Power Electronics Laboratory Irwansyah Syam; Nuzuli Fitriadi; Lindawati Lindawati; Mukhsan; Isma
Jurnal Inotera Vol. 5 No. 2 (2020): July - December 2020
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol5.Iss2.2020.ID124

A series circuit is a parallel circuit or a circuit system that connects from a voltage source (V) to a load, while a parallel circuit is a branching circuit that connects from a voltage source to a load. The measurement process in the electric power system is one of the standard procedures that must be carried out, because through the measurement, the required quantities will be obtained in accordance with the requirements of PUIL 2000. three phases by making a series and parallel installation circuit. The method used in this research is to test, measure and calculate the value of voltage (V), current (I), resistance (R) and load power (P) in a series of single-phase and three-phase electrical installations in series and parallel. Based on measurements and calculation results, the maximum total current generated in a single phase series circuit installation is 82.57 Ampere, which applies equally to L1, L2, L3 and L4. The maximum total current generated in a parallel circuit is 129.35 Amperes at L1 and a minimum current of 96.29 Amperes at L4. For the maximum real power (P) generated in a single-phase series series installation is 13872 Watts and in parallel circuits is 21523 Watts, for the maximum apparent power (S) generated in a single-phase series series installation is 17339 Watts and in parallel circuits is 26904 Watt. While the maximum total current generated in a three-phase series series installation is 94.33 Amperes, which applies equally to L1, L2, L3 and L4. The maximum total current generated in a parallel circuit is 150.56 Amperes at L1, and a minimum current of 120.17 Amperes is located at L4. For the maximum real power (P) generated in a three-phase series series installation is 34637 Watt and in a parallel circuit is 54876 Watt, while the maximum apparent power (S) generated in a series circuit is 43297 Watt and in a parallel circuit is 68595 Watt.

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