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JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI
Published by Universitas Al Azhar Indonesia
ISSN : 20879725     EISSN : 23558059     DOI : -
Core Subject : Health, Science, Engineering,
Biochemistry, Genetics & Molecular Biology Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Public Health
Jurnal AL-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI terbit 2 kali dalam setahun yaitu pada bulan Maret dan September adalah jurna; ilmiah yang mempublikasikan artikel hasil penelitan ilmiah dan ide-ide di bidang sains dan teknologi. Jurnal ini berfokus pada bidang teknik industri, teknik elektro, teknik infromatika, biologi, gizi dan teknologi pangan.
Arjuna Subject : Umum - Umum
Articles 306 Documents
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Gambaran Patologi Embrio Ayam yang Terinfeksi Avian orthoreovirus Isolat Lokal Putra, Raditya Pradana; Murtini, Sri; Poetri, Okti Nadia
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 1 (2024): January 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i1.2143

Abstract

Avian orthoreovirus (ARV) is widespread and found in almost every commercial poultry farm and other poultry species. Virus isolation from local isolates is necessary to obtain vaccine seeds that are homologous to viruses in the field.  The R&D Laboratory of PT Vaksindo Satwa Nusantara successfully isolated ARV from field cases. Inoculation of SPF Embryonated Chicken Eggs (ECE) is the protocol used to evaluate virus titer, especially to calculate the antigen titer of vaccine prototype candidates. The gross pathology of chicken embryos infected with ARV to evaluate virus growth has not been widely reported. This study aims to observe the gross pathology of chicken embryos infected with ARV to measure the virus titer using infectivity test such as the embryo infectious dose 50 (EID50). The virus suspension was diluted from 10-1 to 10-6 then dilutions of 10-4 to 10-6 were inoculated each into five ECE. Incubated ten days and observed for embryonic death. The observations found the embryonic death on day seven. Pathological changes in the embryos are stunted, thin feather, oedema, and less allantois fluid compared to control of uninfected embryo. The results of the embryos necropsy showed cardiac necrosis, greenish liver, and gelatinous exudate in the abdominal cavity.Keywords - Avian Orthoreovirus, Embryonated Chicken Eggs, Embryo Pathology, EID50.
Decision-Making Model for the Selection of Industrial Sector Workers Anggara, Ikbal; Kusumah, Lien Herliani
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2149

Abstract

Recruitment of workers must be done selectively to match the industry's needs for skills and competencies. How ever in Karawang area with the existing capacity performance capacity of the workforce; only 2.5 percent of total job seekers were successfully placed. This study aims to determine the selection criteria for industrial sector workers and provide recommendations for decision-making models for the selection process. To determine the priority criteria, the AHP method was used, followed by the TOPSIS method to calculate preferences. 3 respondents from the Employers' Association of Indonesia (APINDO), HRD-GA Association, and Dinas Tenaga Kerja & Transmigrasi Karawang were requested to act as the experts on employment matters for this study. It was found from this study that Educational, discipline, and skills are three of the fifteen priority criteria with the highest scores in succession. Individual Factors are also being recommended as a priority factor in selecting workers for the industrial sector.Keywords – AHP, TOPSIS, MCDM, Industrial Sector, Workforce Selection.
Optimasi Jenis Kertas untuk Strip Test Boraks dengan Indikator Crude Antosianin dari Ubi Jalar Ungu Susanti, Siti; Bintoro, Valentinus Priyo; Bimonov, Salsabila Alya
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 3 (2024): September 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i3.2791

Abstract

This research aims to determine the most optimal type of filter paper in making strip tests from crude anthocyanins of purple sweet potato to detect borax. The experimental design consisted of paper type optimization by testing magenta color intensity, sensitivity tests of strip tests using borax standard solution by testing cyan color intensity, and application of strip tests on food. Optimization of paper type was tested quantitatively with the treatment of ordinary filter paper and whatman paper number 1, 40, 41, and 42. The sensitivity was tested quantitatively with four concentrations of borax. The results of the application of borax test strip tests on food products were analyzed qualitatively. The results of the research on paper type optimization showed that the color intensity on 5 types of paper was significantly different, with the highest color intensity value owned by ordinary filter paper. Subsequent sensitivity tests on ordinary filter paper at four borax concentrations showed results with a detection limit of 1 ppm. The application test of purple sweet potato strip test, using ordinary filter paper, demonstrated its effectiveness as a borax detection tool in food products, with a sensitivity limit of up to 0.5%. The borax test strip paper produced in this research successfully detected the presence of borax in food products.Keywords – Anthocyanins, Borax, Filter Paper, Purple Sweet Potato.
Analisa Keandalan Instrumentasi Pada Lime Kiln Unit Menggunakan Metode Reliability Centered Maintenance (RCM) di PT. Indah Kiat Pulp and Paper Perawang Andriyan, Septa; Jufrizel, Jufrizel; Ulah, Aulia; Faizal, Ahmad
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2785

Abstract

PT. Indah Kiat Pulp and Paper Perawang is a company that prioritizes paper production. There is a crucial unit known as the lime kiln within the company. Issues occurring within this unit often disrupt the overall production process. Therefore, conducting reliability analysis on the instrumentation of this unit is highly important. This research utilizes the Reliability Centered Maintenance (RCM) method. The objective of this study is to determine which devices within the lime kiln are most vulnerable to problems by calculating the Risk Priority Number (RPN) for each component, evaluating the reliability level of these devices, and providing optimal maintenance schedule recommendations. The research findings indicate the sequence of RPN values for lime kiln instrumentation from highest to lowest as follows: temperature sensor 336, on-off valve 288, flow transmitter 252, control valve 245, proximity sensor 240, pressure gauge 216, sensor indication of motorized damper 210. Furthermore, the reliability values of each instrumentation did not meet the threshold set by the Indonesian Industry Standard (SII), which is 0.7. Therefore, it can be concluded that maintenance action is required for these instrumentation devices. Maintenance schedule recommendations for temperature sensor are 252 days, on-off valve 294 days, flow transmitter 293 days, control valve 251 days, proximity sensor 293 days, pressure gauge 352 days, and sensor indication of motorized damper 353 days.Keywords – Keandalan, Instrumentasi, Maintenance, Lime kiln, RCM.
Line Balancing Pada Produksi Kabel Serat Optik Dengan Metode Ranked Positional Weight Siagian, William Harapan Restadamai; Sulistyo, Arif Budi; Juniarti, Anita Dyah
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2319

Abstract

PT. XYZ produces and manufactures fiber optic cables and pipes in Indonesia. The problem faced in the production section is the imbalance in the work load at each work station. This situation causes bottleneck or accumulation of SF-Product which greatly affects the production operator's performance. The method used is Line Balancing and Ranked Positional Weight to provide the balanced load on all production process factors existing on the production line so as to reduce the difference in operating time between work stations and decrease idle time in the fiber optic cable production process. This study gives the number of machines on the Coloring Line, Buffering Line, Small Jacketing Line, Stranding Line, and Jacketing Line should be 5. There is a combination of tasks on Coloring Line 1 & 2 to meet the needs of Buffering Line 1, and also a combination of tasks on Buffering Line 1 & 2 to meet the needs of Stranding Line 1. In addition, balanced work time assignment in Section 1 is 3115.17 minutes, Section 2 is 2829.428 minutes, Section 3 is 2094.424 minutes, Section 4 is 2094.424 minutes, and Section 5 is 2094.424 minutes.Keywords – Line Balancing, Ranked Positional Weight, Stopwatch Time Study.
Perancangan Sistem Produksi Ekstrak Lemon dengan Discrete Event Simulation Syabira, Zahrayna Shebina; Pulungan, Muhammad Almaududi; Prambudia, Yudha
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2695

Abstract

XYZ Company is a Micro, Small, and Medium Enterprise (MSME) that is engaged in the production of fruit juice drinks with the type of production produced being lemon extract. Unfulfilled demand for lemon extract products is the main problem faced by XYZ Company. This study aims to optimize the production system and provide suggestions for improvements to increase production capacity to achieve production targets using discrete event simulation. Production target planning is determined using demand forecasting. The results of model simulations that have been verified and validated show that the existing production system cannot achieve production targets. This problem is caused by the production process still using manual tools. The experimental design was carried out in the washing, cutting, squeezing, and packaging processes. Of the total of 9 alternative scenarios compared, it is known that alternative scenario C has the best results for achieving production targets with an increase in company output of 15,5% compared to the initial model.Keywords - Demand Forecasting, Discrete Event Simulation, Lemon Extract.
Pengaruh Ukuran Kawat dan Jarak Alur Stator Terhadap Nilai Arus Starting Motor Induksi 3 Fasa Hendrick, Fran; Liliana, Liliana
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 3 (2024): September 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i3.2868

Abstract

The use of electric motors in industry often experiences damage caused by several things, including high starting current surges, overload or full load, loss of one phase in the electric motor, and other causes of damage to the 3-phase motor. The main problem that occurred in this research was damage caused by high starting currents, where in the case study many 3-phase motors were used to drive factory machines. The use of 3-phase motors to drive factory machines is often damaged by unstable currents in the machines. This is because the time and workers for monitoring are very minimal and the materials for repairing machines are inadequate. In this way, the solution for repairing a 3-phase motor is to replace and rewind the damaged motor so that it can be used again. This research aims to find a solution on how to reduce high starting currents in 3-phase motors by utilizing the influence of replacing damaged induction motor components as well as repair methods used in starting when rewinding 3-phase motors. The research results from the groove distance with a wire size of 0.90 mm showed that the groove distance of 9, 9, 8 was 29.3, and at a distance of 10, 10, 10 it had a current of 31 A with no-load testing and recommended groove distances of 10, 10, 10. Next, testing wire sizes of 0.75 mm and 0.90 mm with distances of 10, 10, 10, and 9, 9, 8 without load obtained 26.1 A and 27.4 A while 0.90 mm was 30, 7 A and 28, 1 A. The load was 43.5 A and 43.9 A, while 0.90 mm was 51.3 A and 49.3 A. From the test results, the largest current decrease was at a distance of 10, 10, 10 with a wire size of 0.75 mm. Keyword - 3 Phase Induction Motor, Groove Spacing, Starting, Wire Size.
Front Cover Jurnal Al Azhar Indonesia Seri Sains dan Teknologi Cover, Front
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2918

Abstract

Reliability Control Program Turbo Compressor 2222254-1 Nitrogen Generation System Pesawat Boeing 777-300ER di PT GMF AeroAsia Tbk Riswanto, Cipto; Sofyan, Edi; Setiawan, Ferry; Noerachman, Edy; Nazarullah, Ibny
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2517

Abstract

The pilot report case of Garuda Indonesia's Boeing 777-300ER aircraft that occurred in 2018-2019 was mostly a case of Nitrogen Generation System (NGS) failure. The objective of this research is to identify the dominant factors causing failures in the NGS, evaluate the reliability and failure rates of its components, so as to obtain the estimated time the component may will fail, effective scheduled maintenance, maintenance method design, and the estimated primary cost of the maintenance program and reliability control program for its components within one year. The research methodology using Quantitative analysis’s Distribution Test - Life Data Analysis method combined with the Anderson Darling index of fit parameter of Least Square Curve Fitting approach and Qualitative analysis involves identifying potential root causes and the effects of failures, as well as determining maintenance actions using Failure Mode and Effect Analysis and Fault Tree Analysis. Based on the analysis results obtained, the dominant factor causing failures in the NGS for the period is the variation failure of Turbo Compressor. This component has a reliability of 28.73%, and the mean time to failure (MTTF) is 10,477.62 flight hours. As a result, the optimum interm action preventive maintenance interval (pre-modification) of Turbo Compressor NGS is 250 flight hours with a reliability of 90%, requiring preventive maintenance to be performed 35 times per year. The recommended maintenance action is a scheduled restoration task aimed at upgrading and modifying the Turbo Compressor. The estimated cost of scheduled maintenance for the Turbo Compressor NGS is Rp 2,632,913,890.35, and unscheduled maintenance costs Rp 5,354,508,684.42.Keywords – Reliability, Failure, Maintenance, Turbo Compressor, Nitrogen Generation System.
Analisis Elemen Kemasan Sekunder Pembalut Dengan Metode Rough Set Araminta, Shafa; Sari, Novi Purnama; Muryeti, Muryeti
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2198

Abstract

A common problem often encountered in sanitary napkin packaging is inadequate product protection. Failure to open or reseal the packaging and the use of materials that cannot be reused are complaints from 97% of consumers regarding sanitary napkin products currently on the market. This research aims to analyze packaging design elements according to consumer preferences. In this research, the Kansei Engineering and Rough Set methods were used. Kansei Engineering has the advantage of being able to translate consumer emotions into design elements. The design element analysis process is carried out using the Rough Set method. The research results obtained consumer emotions in the form of 19 Kansei words and 29 packaging samples as design references. Analysis of sanitary napkin packaging design elements obtained recommendations in the form of cardboard material, folding cardboard packaging type, no additional features, box body, opening type with flap, medium size, feminine design, script typography, and image elements in the form of pictures and illustrations. This research succeeded in proving Kansei Engineering's ability to produce packaging designs according to consumer preferences through quantitative data analysis.Keywords - Model Kano, Rough Set, Design Element, Packaging

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