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All Journal POSITRON Jurnal Mechanical ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Rekayasa Mesin JRST (Jurnal Riset Sains dan Teknologi) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Barometer Jurnal Teknik Mesin Jurnal Teknik Mesin Indonesia Jurnal Ilmiah Matematika dan Pendidikan Matematika (JMP) Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Wahana Pendidikan Relativitas : Jurnal Riset Inovasi Pembelajaran Fisika Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya

Najmudin Fauji

Universitas Singaperbangsa Karawang

Author-ID : 3128801

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Karakterisasi Pasir Besi Alam Pantai Samudera Baru dan Pemanfaatannya sebagai Filler pada Sistem Penyaring Elektromagnetik Eri Widianto; Kardiman Kardiman; Najmudin Fauji
JRST (Jurnal Riset Sains dan Teknologi) Volume 2 No. 1 Maret 2018: JRST
Publisher : Universitas Muhammadiyah Purwokerto

Telah dilakukan karakterisasi pasir besi alam Pantai Samudera Baru Karawang dan aplikasinya sebagai filler pada penyaring elektromagnetik. Sampel pasir pantai diekstraksi menggunakan magnet permanen untuk memisahkan material magnetik dan non magnetik. Karakterisasi pasir besi menggunakan Scanning Electron Microscopy with Energy Dispersive X-ray (SEM-EDX). Hasil karakterisasi menggunakan SEM-EDX menunjukkan bahwa sampel pasir besi mengandung unsur Fe dan O, yang berasal dari fase Magnetit (Fe3O4), Maghemite (γ-Fe2O3) dan hematit (α-Fe2O3). Sistem penyaring elektromagnetik dibuat dari pipa PVC berdiameter 1 inchi yang diberi lilitan kawat tembaga berdiameter 0,35 mm, panjang kolom penyaring 50 cm dengan 1050 lilitan dan dimasukkan pasir besi 500 gram sebagai media penyaring. Penyaringan dilakukan dengan mengalirkan sampel air dengan besar arus konstan yaitu 2 A. Hasil pengujian menggunakan Spektroskopi Serapan Atom (SSA) menunjukkan penurunan kadar logam Fe dari 1,228 ppm menjadi 0,0510 ppm dan 0,0813 ppm.Kata Kunci : pasir besi, SEM-EDX, sistem penyaring elektromagnetik

Modifikasi dan Pengujian Sistem Penyemprot Padi dengan Penambahan Pompa Elektrik Marno Marno; Slamet Abadi; Eri Widianto; Uut Ulis Utomo; Najmudin Fauji; Rizal Hanifi
JRST (Jurnal Riset Sains dan Teknologi) Volume 4 No. 1 Maret 2020: JRST
Publisher : Universitas Muhammadiyah Purwokerto

Telah dilakukan penelitian tentang modifikasi dan pengujian sistem penyemprot padi dengan penambahan pompa elektrik 12 v. Tekanan penyemprotan standar ditargetkan sebesar 1,0 – 1,6 bar (kg/cm2). Pengaturan tekanan dan volume penyemprotan akan dilakukan oleh potensiometer. Penyemprot hasil modifikasi mampu tetap bekerja ketika daya baterai habis, karena konstruksi dasar pompa manual tetap dipertahankan. Setelah percobaan didapatkan data bahwa tekanan maksimal pompa manual pada waktu penyemprotan adalah 1,2 bar, sementara untuk pompa dc tekanannya mencapai 1,9 bar (potensiometer 1 putaran penuh 3,68 kΩ). Sementara untuk volume penyemprotan bonggol padi pada kondisi nozzle standar didapatkan untuk pompa manual adalah 1376 L/ha dan 2304 L/ha untuk pompa dc (potensiometer 1 putaran). Untuk hasil pengukuran volume penyemprotan dengan nozzle 1 lubang (3 lubang ditutup dari 4 lubang) pompa manual 272 L/ha dan pompa dc 336 L/ha (potensiometer 1 putaran).

KLASIFIKASI BERAS LOKAL DI KARAWANG BERBASIS ELECTRONIC NOSE MENGGUNAKAN LARIK SENSOR MQ Najmudin Fauji; Ibrahim Ibrahim; Eri Widianto; Vita Efelina; Rizal Hanifi
Relativitas: Jurnal Riset Inovasi Pembelajaran Fisika Vol 2, No 2 (2019): Jurnal Riset Inovasi Pembelajaran Fisika
Publisher : Department of Physics Education, Faculty of Teacher Training and Education, UNIVERSITAS MA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Masyarakat hanya menggunakan cara konvensional untuk mengklasifikasikan beras-beras yang ada dengan cara melihat tekstur dari beras atau dengan cara mencium aroma yang dihasilkannya. Kurangnya pengawasan pada sektor distribusi serta minimnya kepedulian sebagian besar masyarakat terhadap kualitas beras yang dibelinya membuka kesempatan bagi oknum-oknum untuk meraup keuntungan dengan mencampurkan beras berkualitas biasa ke dalam beras berkualitas baik. Sehingga perlu dibuat suatu sistem yang dapat melakukan klasifikasi berdasarkan aroma beras dan pengecekan kualitas dari beras tersebut. Salah satu solusi dari permasalahan tersebut adalah dengan pembuatan sistem hidung elektronik (electronic nose) yang secara efektif dan cerdas dalam mengklasifikasi jenis beras. Electronic nose (e-nose) adalah instrumen yang terdiri dari sensor kimia elektronik dan sistem pengenalan pola yang dapat mengenali aroma sederhana maupun kompleks. Sensor gas yang digunakan untuk klasifikas beras bertipe MQ sebagai pengindera, untuk selanjutnya diekstraksi ciri dan dikenali polanya untuk identifikasi. Dalam penelitian ini dibuat alat klasifikasi beras dengan larik sensor gas MQ berbasis Arduino uno. Hasil yang diperoleh mendapatkan data referensi beras jenis A dan B pada sensor MQ137, MQ135, MQ3, MQ8, MQ7 dan MQ136. Beras jenis A dab B mendapatkan hasil beruntun (688,439,470,485,319,337) dan (704,437,484,459,317,346).

ANALISIS KESTABILAN ENDEMIK MODEL EPIDEMI CVPD (CITRUS VEIN PHLOEM DEGENERATION) PADA TANAMAN JERUK Tesa Nur Padilah; Najmudin Fauji
Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 9 No 2 (2017): Jurnal Ilmiah Matematika dan Pendidikan Matematika
Publisher : Jurusan Matematika FMIPA Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jmp.2017.9.2.2863

Orange fruits are important commodities in Indonesia. However, the efforts to increase production of oranges still have obstacles. One of them is because ofCVPD (Citrus Vein Phloem Degeneration) disease. The spread of CVPD disease in orange plants can be modeled by mathematical model, that is epidemic model betweenorange plants as a host plant and Diaphorina Citri as a vector. In this model, predation response follows Holling Type II response function. The model is then analyzed by checking the stability of the equilibrium point and computing basic reproduction number. This model has an endemic equilibrium point. If the basic reproduction number is more than one then an endemic equilibrium point is locally asymptotic stable or epidemic which means that it occurs in the population. The simulation result of the model are in good agreement with the model behavior analysis.

ANALISIS KERUSAKAN MESIN GEMINI FICEP G25 SP CNC MENGUNAKAN METODE FAILURE MODE EFFECT ANALYSIS (FMEA) Habibberi Agil Rabani; Iman Dirja; Najmudin Fauji
ROTOR Vol 15 No 1 (2022)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The rapid development of the manufacturing industry requires companies to always produce high quality and fully functional products. However, when the production process does not always run, there should be problems encountered, such as the machine factor which often breaks down and even shuts down completely, causing production disruption. One of the important factors in the successful implementation of Failure Mode Effect Analysis (FMEA) is to interpret before, the process takes place and not after it occurs. To support the implementation of Failure Mode Effect Analysis in the field of maintenance, an effort is needed to improve the state of the equipment. So, in this study, this method will be applied to the maintenance of the Gemini Ficep G25 CNC machine. The result can be assumed to be the primary problem in damage. The trouble that must be prioritized first are the plasma doesn’t run, the force on the engine drive does not move, the dust collector does not work and the internal and external coolants water don’t come out.

Rancang Bangun Bilah Turbin Angin Sumbu Horizontal Tipe Taperless Dengan Airfoil Psu94-097 Menggunkan Material Kayu Nangka (Artocapus Heterophyllus) Rifki Maulana Sidik; Kardiman Kardiman; Najmudin Fauji
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 14 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Wind energy is a renewable alternative energy source that is environmentally friendly. As in indonesia, the wind potential is very capable of being utilized or develoved for renewable energy, whre the average wind speed in indonesia is 2 m/s – 8 m/s with the wind speed capable of driving wind turbines. Turbines have an important component, namely blades, these blades convert wind energy to kinetic energy. The purpose of the research on design of Horizontal Axis Wind Turbine Taperless type with Airfoil PSU94-097 using jackfruit wood is to determine the process of material is to determine the process of designing, manudacturing and tasting. Where starting with the selection of the airfoil is PSU94-097 with a Cl/Cd value of 138.56 and a CP/TSR value of 46%. 2D and 3D bar design are made in Solidworks software by entering coordinate to simplity the manufacturing process, namely manufacturing. The last stage is testing the blades on the wind turbine, where the total test for three days produces 371.54 Wh of power with the highest wind speed of 12.46 m/s.

Analisis Perpindahan Panas dan Laju Kalor Penyebab Cacat Produksi Injection Molding Spakbor Sepeda Motor di PT. XYZ Dewi Marlina; Kardiman Kardiman; Najmudin Fauji
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 15 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

From observations on molding and die casting companies as well as the production of plastic molding automotive parts, several defects were found in the injection engine results. Types of product defects include short mold, black spot, flowmark and wide flashing. This study aims to suppress the problem of the factors causing product defects, namely by calculating the heat transfer that occurs in the mold and calculating the rate of heat absorbed by the chiller which is expected to reduce product defects on the front fender of the motorcycle so that it can meet the desired production targets and can reduce production costs incurred. excess. The results showed a decrease in the mold temperature of 35°C and the melting temperature of the plastic at 220°C, which was 1.19%. And to maintain a mold temperature of 35°C with a plastic melting temperature of 220°C, the proper chiller temperature setting occurs at 28°C. It can be concluded that the cause of defects in the front fender of a motorcycle is the relationship between the melting temperature of the plastic as a raw material and the temperature of the mold used

Sistem Pengendalian Kualitas (Quality Control) Pada Proses Fabrikasi Project “Refinery Development Master Plan (RDMP)’’ Fajri Julian; Kardiman Kardiman; Najmudin Fauji
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 15 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Fabrication is the process of processing components of raw or semi-finished materials that are assembled, shaped, and manipulated to produce new goods that have added value and function. It can also be said that fabrication is a series of jobs to build something manually or with the help of automation such as using factory tools. Quality Control or commonly abbreviated as QC which means quality control. QC can be needed in various industrial sectors, from a manufacturing to a hand production. The general task of QC is to be able to visually inspect to be able to test the product. Inspection of a product can take place before, during and after the process in production. Inspections must be carried out carefully so that any material that does not meet the standards can be rejected and maintain the quality of the material sent to the site. Finally, in working on a project, you must pay attention to other factors that can affect the course of the project so that the desired standard is maintained and progress can continue.

Analisis Perhitungan Poros Roda Depan Motor Yamaha Vixion Advance 150CC 2015 Luthfi Rachman Sidqi; Kardiman Kardiman; Najmudin Fauji
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 15 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

The front Shaft of a motorcycle works to support the steering load to maintain the balance of the vehicle when walking, looking for the road and reducing speed. In this study, the engine elements will be planned based on systematic calculations and at the same time implementing, applying theory in the form of engine element structures, especially on the front shaft of the 2015 Yamaha Vixion Advance 150cc motorcycle. The data analyzed is the static calculation on the motorcycle and on the bicycle shaft. 2015 Yamaha Vixion Advance 150cc motorcycle. With the calculation of 2015 Yamaha Vixion Advance 150cc motorcycle statics, the number = V1:1231 N, V2: -59 N, V3, -859 N, M1: 860 N.mm & 837,080 N.mm, M2: 378,420 N.mm&318240 N.mm, M3: 135,760 N.mm&1.187,280 N.mm. and the results of statics on the shaft of the 2015 Yamaha Vixion Advance 150cc motorcycle the number = V1: 615.5 N, V2: 615.5 N, V3: 0 N, M1: -2160 N.mm&-39053,75 N.mm, M2 : 122484.5 N.mm&244969 N.mm, M3: 12310 N.mm&12310 N.mm

Perhitungan Poros Roda Depan Motor Honda Vario 110 tipe CW Muhammad Nur Yasin; Reza Setiawan; Najmudin Fauji
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 16 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

The shaft is one component of a motorcycle that is no less important than other components. These components function to support the load of the vehicle itself as well as external loads such as humans or cargo on a motorcycle.This study aims to determine the working stress and also the safety factor on the shaft.The component that will be discussed is the front axle of the Honda Vario 110 tipe CW motorcycle.The method used is an experimental method with qualitative and quantitative analysis.The results of the analysis show that if a load of 80 kg is given, then the value of the working stress is 163,28 N/mm2, while the safety factor is 2.1.

Co-Authors Aeni, Alfieta Rohmaful Anjani, Ratna Dewi Billy Nugraha Dewi Marlina Dian Budhi Santoso Dwika Daffa Ashari Efelina, Vita Endah Purwanti Eri Widianto Fajri Julian Habibberi Agil Rabani Hakim, Muhammad Fahmi Hanifi, Rizal Hasanah, Putri Nur Ibrahim Ibrahim Ibrahim Ibrahim Ihsan Budiman Iman Dirja Iqbal Maulana Jojo Sumarjo Kardiman Kardiman, Kardiman Kusumaatmaja, Ahmad Kuwat Triyana Luthfi Rachman Sidqi Ma'mun Abdul Karim Mahendra, Bhisma Marno, Marno Muhamad Rizky Adipratama Muhammad Aizul Haq Muhammad Alfarhan Ficki Muhammad Nur Yasin Naubnome, Viktor Noviana Nurhikmat Padilah, Tesa Nur Rahmat, Natasya Shafira Putri Reni Rahmadewi Reza Setiawan Rifki Maulana Sidik Riza Ibnu Adam Rizal Hanifi Sarah Dampang Slamet Abadi Sobur, Susilawati Sri Bintang Abdul Rohman Suci, Farradina Choria Suhelmi, Muhamad Fadhlan Tesa Nur Padilah Umi Nuraini, Umi Uut Ulis Utomo Vita Efelina Vita Efelina Widianto, Eri Widianto, Eri Wilda, Saniatun YULIASARI, FITRI

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