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All Journal Info-Teknik Turbo : Jurnal Program Studi Teknik Mesin Jurnal Elemen Jurnal Pengabdian Al-Ikhlas Scientific Journal of Mechanical Engineering Kinematika JMIO: Jurnal Mesin Industri dan Otomotif Journal of Industrial Engineering and Operation Management (JIEOM) Jurnal Taguchi : Jurnal Ilmiah Teknik dan Manajemen Industri
Akhmad Syarief
Lambung Mangkurat University
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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EFFECT OF AIR AND SOAKING OF NaCl SOLUTION ON CORROSION RATE OF S45C STEEL WELDS Akhmad Syarief; Ade Azhari Rahmatuloh
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 1 (2020): SJME Kinematika Juni 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i1.140

Abstract

Welding is the joining of two metals so that a strong connection is formed. One of the causes of this steel's efficiency is decreasing. Corrosion is a decrease in the quality and quality of material due to chemical reactions with elements in the environment. The purpose of this study was to determine the effect of air and immersion of NaCl solution on the corrosion rate. The method used is the weight loss method, where after 38 days the S45C steel is left in the open space and 38 days left in the NaCl solution with a variation of seam V, ½ V, and I. From the results of testing for 38 days, the highest corrosion rate of welded seam variation in NaCl solution was 0.0644 mm/y, and then ½ V was 0.0635 mm/y, and the lowest was seam V with 0.0631 mm/y Whereas, without immersion, the highest corrosion rate in seam I was 0.00488 mm/y, followed by ½ V with 0.00431 mm/y, and the lowest seam V was 0.00429 mm/y, V with 0.00431 mm/y, and the lowest seam V with 0.00429 mm/y.
PENGARUH VARIASI BENTUK (SILINDER PENJAL DAN SILINDER BERONGGA), UKURAN PARTIKEL DAN TEKANAN TERHADAP KARAKTERISTIK PEMBAKARAN BRIKET LIMBAH ARANG ALABAN-SEKAM PADI akhmad syarief; Fadliyanur; Dhanu Suryanta; Hansen Rivaldo Napitupulu; Aulia Aufa Ramadhasari; Defrihans Galang Putranto; Lukmanul Hakim
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.196

Abstract

The purpose of this study is to determine which shape of alaban bark charcoal waste briquettes is the most efficient according to its combustion characteristics. This research was conducted using experimental methods in the laboratory. It starts from filtering the charcoal waste, compressing into the wanted shapes and then combustion characteristics test. The manufactured briquettes are using 20 and 40 mesh of particle sizes, 50 kg/cm2 and 100 kg/cm2 holding pressure. The ratio between alaban charcoal waste and rice husk is 90 : 10, with 22 gram as the weight each. The shapes are solid cylinder and hollow cylinder. Combustion characteristic test used to determine the initial ignition, combustion rate and combustion temperatur. The results showed that hollow cylinder briquettes with 40 mesh particle size and 100 kg/cm2 holding pressure had the most efficient initial ignition and combustion rates with the combustion rate of 0,22 g/min. Meanwhile solid cylinder briquettes with 40 mesh particle size and 50 kg/cm2 holding pressure had the lowest initial ignition and combustion rates which is 0,14 g/min for the latter.
ANALISIS KINERJA TURBIN ARCHIMEDES SCREW PADA PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO Andy Nugraha; Muhammad Nizar Ramadhan; Akhmad Syarief; Dwi Suci Adianto
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 1 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i1.183

Abstract

Pembangkit Listrik Tenaga Mikrohidro (PLTMH) adalah suatu pembangkit listrik skala kecil dengan menggunakan tenaga air sebagai tenaga dengan cara memanfaatkan tinggi terjunan (head) dan jumlah debit air. Turbin archimedes screw dapat beroperasi pada head rendah dibawah 10 meter, tidak membutuhkan pipa pesat, mudah dalam perawatan dan pemasangan. Penelitan ini bertujuan untuk mengetahui variasi debit aliran air terhadap Torsi, daya hidrolis, daya generator dan efisiensi turbin yang mampu dihasilkan oleh turbin Archimedes screw. Variasi debit aliran air yang digunakan pada penelitian ini yaitu 1 liter/s, 1,5 liter/s, dan 2 liter/s. Hasil dari penelitian ini menunjukkan bahwa variasi debit aliran air berbanding lurus terhadap kinerja PLTMH dimana didapatkan torsi turbinefisiensi generator pada debit aliran 2 liter/s sebesar 12,76%, pada debit aliran air 1,5 liter/s sebesar 9,07%, dan pada 1 liter/s sebesar 1,16%.
Pengaruh fraksi volume dan orientasi sudut serat komposit polyester-serbuk kayu ulin (eusideroxylon zwageri)-kawat kasa terhadap kekuatan bending Akhmad Syarief; Taufik Irfansyah Sofian; Akhmad Ghiffary Budianto; Andy Nugraha
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2163

Abstract

A composite is a material formed from the combination of two or more constituent materials through an inhomogeneous mixture. The ironwood waste has less economic value, which makes the authors interested in conducting research using mosquito nets and particle composite ironwood waste. Which is to find out the effect of volume fraction and angle orientation of the fiber composite polyester-ulinwood powder (Eusideroxylon zwageri)-mosquito wire on the bending strength. The bending test was carried out using the ASTM D-790 standard with the three point bending test method and the composite was manufactured using the hand lay-up method with the particle composition: polyester: 10%: 90%, 15%: 85%, 20%: 80%, and 25%: 75%. The results obtained in the comparison of the composition of less ironwood powder, a finer mesh size with an orientation angle of 45°, and mosquito wire show the highest bending strength and high deformation ability (ductile), and the addition of mosquito net as one of the composite specimen fibers of polyester resin does not increase significant bending strength but can reduce the deformability reduction effect.
ANALISIS PENGARUH PENGURANGAN DIMENSI DATA PADA KEAKURATAN PREDIKSI PENYAKIT JANTUNG DENGAN MENGGUNAKAN SVM LINEAR Akhmad Ghiffary Budianto; Akhmad Syarief
Jurnal Taguchi : Jurnal Ilmiah Teknik dan Manajemen Industri Vol. 3 No. 1 (2023): Jurnal Taguchi : Jurnal Ilmiah Keilmuan Teknik dan Manajemen Industri
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/tgc.v3i1.58

Abstract

Heart disease is a disorder in the form of plaque that occurs in large blood vessels. This disrupts the supply of oxygen to the organs of the body. Heart disease is 1 of the 3 most common causes of death worldwide. Therefore, early detection based on the examination of medical data is needed to prevent the impact. The method used for classification is Support vector machine (SVM) and dimension reduction is Principal component analysis (PCA). The dataset is from Kaggle, medical records of 299 patients with 12 features and 1 label. The results obtained are the level of accuracy of PCA 6 features and without PCA both produce 82.9% and a total of 51 misclassifications. The processing time required is slightly longer for PCA 6 features (0.69121 seconds) than without PCA (0.46173 seconds). Because it has the same level of accuracy, the f-score metric is used to assess the classification model. The SVM with PCA 6 features has an f-score of 0.879, this is slightly better than SVM without PCA, which is 0.878
PEMBERDAYAAN KARANG TARUNA KARYA MASA MELALUI TEKNOLOGI PEMBUATAN ALAT PENCACAH ECENG GONDOK DI DESA LOK BAINTAN, KABUPATEN BANJAR, PROVINSI KALIMANTAN SELATAN Akhmad Syarief; Muhammad Nizar Ramadhan; Ahmad Ghiffary Budianto
JURNAL PENGABDIAN AL-IKHLAS UNIVERSITAS ISLAM KALIMANTAN MUHAMMAD ARSYAD AL BANJARY Vol 11, No 1 (2025): AL-IKHLAS JURNAL PENGABDIAN
Publisher : Universitas Islam kalimantan MAB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jpaiuniska.v11i1.16779

Abstract

Pada Program Hibah Pengabdian Kepada Masyarakat Kompetitif Nasional  melibatkan Tim Pelaksana Prodi Teknik Mesin dan Prodi Teknik Rekayasa Elektro Universitas Lambung Mangkurat dengan Mitra dari Karang Taruna Karya Masa di Desa Lok Baintan, Kabupaten Banjar, Provinsi kalimantan Selatan. Permasalahan yang dihadapi mitra saat ini adalah pertama permasalahan lingkungan seperti banyaknya tumpukan limbah berupa sampah rumah tangga; kedua permasalahan pada parawisata dimana eceng gondok menghambat aktifitas kegiatan wisata pasar terapung; ketiga permasalahan pertanian dimana eceng gondok merupakan gulma yang selama ini hidup di wilayah pertanian di pesisir sungai Martapura. Dari permasalahan tersebut membuat Tim PKM dari Prodi Teknik Mesin Universitas Lambung Mangkurat mengajak berkerjasama dengan masyarakat, dimana dari tim PKM memberikan pengetahuan dan bantuan berupa barang, dengan merancang dan membuat suatu alat pencacah dan peniris eceng gondok. Kegiatan PKM berikut bertujuan dapat menghasilkan beberapa hal, antara lain: (1) Tim PKM dapat mentransfer ilmu pengetahuan dan teknologi kepada anggota karang taruna; (2) Pembuatan atau perakitan alat pencacah eceng gondok serta cara mengoperasikan dan merawat teknologi yang diberikan; (3) tim PKM memberikan pelatihan kepada mitra cara membuat dan memasarkan pupuk kompos dari eceng gondok
Co-Authors Abdul Ghofur Achmad Azhar Basyir Ade Azhari Rahmatuloh Ahmad Ramadan Akhmad Ghiffary Budianto Akhmad Maulana Gumai Akhmad Wahyudi Akhmad Yafie Andy Nugraha Apip Amrullah Aulia Aufa Ramadhasari Bagus Lutfiwijaya Baramsyah Baramsyah Candra Dwi Putra Defrihans Galang Putranto Dhanu Suryanta Dwi Suci Adianto Fadliyanur Hansen Rivaldo Napitupulu Isworo, Hajar Lukmanul Hakim Maidi Maidi Misbachudin Misbachudin Moh. Sulhan Muhammad Ainur Rahman Muhammad Arzy Satria Muhammad Nizar Ramadhan Nanda Dwiguna R.M.B Agung E.W Rangga Mahesa Ricky Indriyanto Sabitah, A'yan Sigit Mujiarto Taufik Irfansyah Sofian Tumanggor, Agustina Hotma Uli Yopi Riyanto Yudistira Bayu Setiambodo