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ARRUS Journal of Engineering and Technology
Published by Yayasan Ahmar Cendekia Indonesia
ISSN : 27767914     EISSN : 28073045     DOI : https://doi.org/10.35877/jetech.v1i1
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Library & Information Science
ARRUS Journal of Engineering and Technology preserves prompt publication of manuscripts that meet the broad-spectrum criteria of scientific excellence. Areas of interest include, but are not limited to: Aerospace Engineering Architecture Evaluations Automation and Mechatronics Engineering Bioengineering Chemical Technology Civil and Architecture Engineering Computer Science Construction Control Systems Engineering Data Engineering Electrical, Electronics and Computer Engineering Engineering Mathematics Engineering Science Environmental Engineering and technology Fluid Engineering Genetic Algorithms Information Engineering and Technology Information Theory Marine and Agriculture engineering Material and Chemical Engineering Materials & Technology Engineering Mechanical, Industrial and Manufacturing Engineering Nuclear Engineering Optical Engineering Petroleum and Mining Engineering Petroleum Engineering Physics Robotics & Automation Engineering Software Engineering Statistical Techniques Thermodynamics
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 89 Documents
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Application of Industrial Engineering Technique for Better Productivity in Garment Industry Nguyen Viet Tinh; Syed Tam Husain; Nguyen Van Thanh
ARRUS Journal of Engineering and Technology Vol. 1 No. 1 (2021)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech493

Abstract

In recent years, with the strong development of the industry, it has created a competitive market. To be able to stand and survive requires businesses to create their own charisma based on the products they create must have the quality, cost and speed quickly. To do that requires businesses to have proper production strategies. Especially for the garment industry, which has a lot of waste in the production process that needs to be eliminated. This study focuses on the construction of standard time sets and standard activities to help eliminate wasted time on hand movements and time spent by workers. The result ca be used to develop the standard operation procedures of the production process.
Group Technology for Optimizing Manufacturing Facility Layout Nguyen Van Thanh; Nguyen Thai Nguyet Thanh; Nguyen Viet Tinh
ARRUS Journal of Engineering and Technology Vol. 1 No. 1 (2021)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech512

Abstract

In recent years, the process of cellular manufacturing and group technology have received a lot of attention and popularity in many developed countries. By applying Group Technology (GT), many benefits of flow-line production can be attained in a batch production system. GT improves material handling significantly by reducing material flow time, distance, and setup times. In this paper, an earnest investigative attempt was made to provide valuable information regarding the use of Group Technology by applying to a real world jobshop system. The proposed GT model has the flexibility of choosing the number of cells required, which is very useful in examining different manufacturing cell configurations; or in case the workshop or factory prefers a certain number of work cells. The GT model results were found satisfactory and superior to other techniques in some cases.
UI/UX Design Web-Based Learning Application Using Design Thinking Method Winda Suci Lestari Nasution; Patriot Nusa
ARRUS Journal of Engineering and Technology Vol. 1 No. 1 (2021)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech532

Abstract

Humans are basically inseparable from education in carrying out life. The implementation and development of educational studies must also be adapted to the conditions and social situations that exist in the community. The main focus of Goal 4 on Sustainable Development Goals (SDGs) is to provide inclusive quality education or to ensure everyone has an equal opportunity to get good quality of education. In fact, Indonesia is still struggling in the quality of teacher issue. In the school year of 2019/2020, there are 8.98% unqualified teachers and headmasters on primary school level, 6.16% on junior high school level, 10.07% on senior high school level, and 10% on vocational high school level. Cumulatively, from primary school level to vocational high school level, there are 247.462 unqualified teachers and headmasters in Indonesia. This is a serious problem, considering that teachers are important component in determining the quality of education itself. In this research, UI/UX design prototype of learning web application named “IdeIn” was developed using Design Thinking method that consists of empathize, define, ideate, prototype, and test stages. The main focus of this learning web application is to provides an opportunity to the whole community to support education in Indonesia by conducting online classes.
Material Test Comparison of Pure Aluminum (Al) and Pure Aluminum-Coated (Al) with Silver (Ag) Substrat Using Electroplating Method Aming Sungkowo; Trikolas Trikolas; Rosyid Ridlo Al Hakim; Slamet Riyadi; Yanuar Zulardiansyah Arief; Ariep Jaenul
ARRUS Journal of Engineering and Technology Vol. 1 No. 2 (2021)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech562

Abstract

Electroplating uses aluminum material, where it’s easy to obtain, lighter, and cheaper than other metals. The research goal was to determine the ability of the electric current to power aluminum (Al) coated with silver (Ag) by the electroplating method, to determine the effect of the magnitude of the electric current and the length of time the coating process took on the weight of Al coated with Ag and to determine the strength of the metal Al after tested using Brinnell test. The method used is to compare pure Al and pure Al coated with Ag by electroplating at different currents to determine the effect of the electroplating process. A Brinnell test was carried out to determine the hardness of the Al material after electroplating. The results are the amount of current that flows during the electroplating is directly proportional to the thickness of the electroplating layer attached to the Al surface. If the electroplating process uses a large current, the attached layer will look rough and not smooth, which also affects the material testing by using the Brinnell method. The Brinnell test proves that the hardness value of the Al material is directly proportional to the thickness of the layer.
Talent Management Employee Development by Using Certainty Factor Method of Expert System Aditia Putra Hamid; Rosyid Ridlo Al Hakim; Aming Sungkowo; Trikolas Trikolas; Hendra Purnawan; Ariep Jaenul
ARRUS Journal of Engineering and Technology Vol. 1 No. 1 (2021)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech568

Abstract

Talent management is a factor that determines success in the business environment because talent management requires quantitative and qualitative skills. This study aims to implement the certainty factor (CF) method of an expert system for employee development talent management. This research using a certainty factor (CF) method to design an expert system framework. Due to the focus on our research aim, we provide a certainty factor calculation with mathematical modeling for calculating talent management employee development in X Company. The confidence level is 93.55% for a recommendation of not promotion of the job; for 52.38% is a recommendation that can be proposed for promotion, but HRD will evaluate in some time; for 98.73% is a recommendation for promotion of the job. We used CF calculation that can provide the level of confidence (in %). The calculation of the certainty factor (CF) method can be used for recommending job promotion in some companies.
Analysis of Catechins in Gambir West Sumatra Alif Gita Arumsari
ARRUS Journal of Engineering and Technology Vol. 1 No. 2 (2021)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech590

Abstract

Gambir contains functional compounds that are included in the class of polyphenol compounds. The polyphenol compounds in gambir are mainly catechins, a natural substance that has antioxidant properties. The purpose of this study was to obtain catechin compounds from Gambir extract, to determine the solvent concentration and the right extraction temperature to obtain catechin compounds in Gambir, and to increase the selling value of Gambir latex in the Farmer community. To get the results of catechins in Gambir, this research was carried out using the infundation method. The yield of the extract was mostly found at a solvent concentration of 45% ethanol, a temperature of 105 oC and a time of 3 hours, namely 81%. Qualitative test using FeCl3 reagent can be seen that in the filtrate extracted from gambir there are catechins which show a blackish green color when dropped with FeCl3
Quest For Convergence Solution Using Hybrid Genetic Algorithm Trained Neural Network Model For Metamorphic Malware Detection Arnold Adimabua Ojugo; Chris Obaro Obruche; Andrew Okonji Eboka
ARRUS Journal of Engineering and Technology Vol. 2 No. 1 (2022)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech613

Abstract

An unstable economy is rife with fraud. Perpetrated on customers, it ranges from employees’ internal abuse to large fraud via high-value contracts cum control breaches that impose serious consequences to biz. Loyal employees may not perpetrate fraud if not for societal pressures and economic recession with its rationalization that they have bills to pay and children to feed. Thus, the need for financial institutions to embark on effective measures via schemes that will aids both fraud prevention and detection. Study proposes genetic algorithm trained neural net model to accurately classify credit card transactions. Compared, model used a rule-based system to provide it with start-up solution and it has a fraud catching rate of 91% with a consequent, false alarm rate of 9%. Its convergence time is found to depend on how close the initial solution space is to the fitness function, and for recombination and mutation rates applied.
Effect of Moisture Content and Variety on the Some Physical and Aerodynamic Properties of Sesame Seeds Relevant to Its Processing. Eze, Paul Chukwuka; Eze, Chikaodili Nkechi; Ide, Patrick Ejike
ARRUS Journal of Engineering and Technology Vol. 2 No. 2 (2022)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech678

Abstract

The physical and aerodynamic properties of black and white sesame were determined at Moisture Content(MC%) range of 8.5 – 30.6%(d.b).The major, minor, intermediate, arithmetic mean, geometric mean diameters and sphericity, projected area of the two varieties were 2.96 – 3.94mm, 1.47 -2.40mm,0.54 -1.26mm,1.66 – 2.50mm, 0.78 - 3.66mm and 26.53 – 93.45, 1.91 – 42.08mm2 respectively.The increase in MC resulted decrease in true density from 1038.61 – 994.93 kg/mm2 and 1039.61 – 998.47 kg/mm2 for white and black sesame seed respectively.The terminal velocity of white sesame seed ranged from 3.12 – 7.82m/s while black sesame seed ranged from 3.16 – 7.94m/s at MC range of 8.5 – 306% (d.b).The drag coefficient were 3.750.31 and 2.26 – 0.23 for white and black sesame seed respectively as MC ranged from 8.5 – 30.6% (d.b) while Reynold number varied from 2363.9 – 23067.3 and 3401.5 – 15121.6 for white and black sesame seed respectively at MC range of 8.5 - 30.6% (d.b).The properties of sesame seed determined varied significantly with variety and MC.This findings are the prerequisite in the design and selection of sesame seed separating machine. A pneumatic separator can be designed with provision for effective separation of undesired light material with average terminal velocity below 5.17m/s and 5.67m/s for white and black sesame seeds respectively.
Efforts to Reduce the Temperature of the Coolant in the Radiator with PCM Suhartoyo
ARRUS Journal of Engineering and Technology Vol. 2 No. 1 (2022)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech706

Abstract

This study aims to determine the effect of using PCM in reducing the temperature of the water entering the radiator from the engine. Two types of PCM used are made of aluminum and ST 37 steel. They are made like a box measuring 8 cm x 8 cm with a thickness of 2 mm, the center hole is 3.5 cm in diameter, totaling eight pieces. The Machine used is L 300 Colt engine. The results of the study explained that the decrease in engine temperature after using PCM reached 17.50C. While the use of PCM is very effective where the water coming out of the machine can be reduced by 17,830C. Engine speed at stationary conditions (800 rpm – 1100 rpm) aluminum PCM is more effective, but at engine speed starting (1250 rpm – 2000 rpm), the effective PCM is ST 37 steel.
Novel Probiotic Isolation of Coconut Water's Helpful Lactic Acid Bacteria Cure Covid-19 Patients Suryani Suryani; Yuliesi Purnawati; Sindy Gemaeka Putri; Rahmawati Rahmawati; Yustitia Akbar; Yusra Yusra
ARRUS Journal of Engineering and Technology Vol. 2 No. 1 (2022)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech724

Abstract

Probiotics from coconut water lactic acid bacteria have not isolated nor identified them, and no one has studied that these probiotics can help cure Covid-19 patients. This study aimed to isolate and identify probiotic lactic acid bacteria in coconut water, both morphologically, physiologically, and biochemically. Further studied his ability to help cure Covid-19 patients. Using coconut water samples, probiotics are isolated by isolating lactic acid bacteria through dilution methods and pour plate methods. The medium used is MRSA+ CaCO3 0.3%. Physiological and morphological identification. The following identification is to perform biochemical tests such as the Gram test. The results showed that there were 73 bacterial isolates and 24 fungal isolates, consisting of 4 species of bacteria, Pediococcus sp, Lactobacillus paracasei, and Lactobacillus plantarum, as well as candida sp and rhizopus fungi. In comparison, the results of the antimicrobial analysis showed that Lactobacillus plantarum has better antimicrobial ability against the pathogen bacteria Pseudomonas aureginosa. Lactobacillus plantarum's antimicrobial ability is less good against S. aureus bacteria. These findings suggest that probiotics from coconut water can be isolated and may aid the healing of Covid-19 patients. This study has implications that in the future Covid-19 patients can be helped with coconut water.

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