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All Journal Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Ilmiah Biologi UMA (JIBIOMA) Jurnal Ilmiah Teknik Mesin & Industri (JITMI)
Faisal Amri Tanjung
Universitas Medan Area
Aerospace Engineering Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Analisis Karakteristik Bahan Tembaga Akibat Pengaruh Proses Penempaan Terhadap Kekuatan Impak Muhammad Yusuf Rahmansyah Siahaan; Rakhmad Arief Siregar; Faisal Amri Tanjung; Agung Saktiawan
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13709

Abstract

Indonesia is one of the countries with the largest copper reserves in the world, namely the Tembagapura area, Mimika Regency, Papua Province. The development of electric car technology has a significant impact on increasing the demand for copper. This study conducted material engineering on copper materials with the forging process. The aim of the research was to obtain the average impact energy, average impact strength, and fracture shape of the material from a variety of copper materials. The variation of each test specimen was formed following the ASTM E23 standard with a size specification of 55 mmL x 10 mmW x 8 mmT. The experimental study of impact testing by the charpy method yielded an average impact energy value of 169.081 Joule and 98.058 Joule respectively for copper variations X1 and X2. The average impact strength values produced by the copper variations X1 and X2 are 2.114 J/mm2 and 1.226 J/mm2 respectively. The results of physical observations of the two variations of the copper material show that the material is not broken with fibrous fractures. The data from the test results can be declared that the forging process with hot working has an effect on increasing material characteristics by 58% and copper materials are classified as ductile materials.
Analisis Kualitas Fisik Hand sanitizer Ekstrak Serai dan Cengkeh Serta Kemampuannya dalam Menghambat Pertumbuhan Staphylococcus aureus Diana Sari; Abdul Karim; Faisal Amri Tanjung; Riyanto Riyanto
Jurnal Ilmiah Biologi UMA (JIBIOMA) Vol 5, No 1 (2023): Mei 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jibioma.v5i1.1653

Abstract

Hand sanitizer is an antiseptic substance that can be used to clean hands. To reduce the chemical content in Hand sanitizers, by using natural ingredients that contain antimicrobial ingredients. The natural ingredients used in this study were lemongrass and cloves. The purpose of this study was to determine the physical quality (organoleptic, homogeneity), phytochemical content and effectiveness of lemongrass and clove extracts against Staphylococcus aureus bacteria. This study uses an experimental laboratory research method where the data obtained in the observations are presented in the form of quantitative descriptive analysis with concentrations of 0%, 25%, 50%, 75%, 100% in 5 days, 7 days and 10 days of fermentation. The results of the organoleptic test got the results of color, shape and liquid texture, the results of the homogeneity test were that there were still coarse grains on the Hand sanitizer. The results of the phytochemical content of lemongrass and clove extracts are flavonoids and tannins. The results of the effectiveness test showed that lemongrass and clove extracts were able to inhibit Stahpylococcus aureus bacteria in 5 days, 7 days and 10 days of fermentation. The largest inhibition zone was found in  the 7-day fermentation with 100% concentration of 0.86 mm.
Perancangan Mesin pengupas Kulit Telur Burung Puyuh Semi-Otomatis Berkapasitas 240 Butir / Jam Rianto S; Amru Siregar; Faisal Amri Tanjung
Jurnal Ilmiah Teknik Mesin & Industri (JITMI) Vol 1, No 2 (2022): Jurnal Ilmiah Teknik Mesin & Industri (JITMI)
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jitmi.v1i2.1466

Abstract

The motivation behind this plan is to speed up the stripping of quail egg shells, quail eggs are typically handled with different types of food, subsequently requiring a stripping cycle. The timeframe for stripping quail egg shells by manual is a normal of 10 seconds/thing, on the off chance that in huge amounts a peeler is required. From these issues the creator made a "Self-loader Quail Egg Shell Peeler to Increase Productivity and Effectiveness in Quail Egg Shell Peeler". Shaft width. Estimation of creation limit depends on the revolution of the screwdriver with a heap. In light of the plan, the details of the device are gotten utilizing a 12 volt 62 rpm electric engine with a force of 300 watts, a shaft width of 20 mm. The creation limit is gotten by pivoting the screwdriver with a heap of 62 rpm with a creation limit of 240 grains.
Co-Authors Abdul Karim Agung Saktiawan AMRU SIREGAR Diana Sari Muhammad Yusuf Rahmansyah Siahaan Rakhmad Arief Siregar Rianto S Riyanto Riyanto