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All Journal Jurnal Fisika FLUX 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 Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics 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
Pengaruh Fraksi Volume pada Hybrid Komposit Serat Bemban – Purun Tikus Bermatriks Polyester terhadap Kekuatan Tekan dan Impak akhmad syarief; Ripal Anugrahto; Mastiadi Tamjidillah; Ma’ruf Ma’ruf; Andy Nugraha; Muhammad Nizar Ramadhan; Fadliyanur Fadliyanur
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 22, No 1 (2025): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v22i1.21626

Abstract

Material komposit dipahami sebagai salah satu jenis inovasi material maju yang terbentuk berdasarkan hasil penggabungan antara matrik dan satu atau beberapa penguat (reinforced) dengan memiliki karakteristik tertentu. Riset yang dilakukan bertujuan untuk mengetahui pengaruh fraksi volume hybrid composite serat bemban (Donax caniformis) – serat purun tikus (Eleocharis dulcis) bermatriks polyester terhadap kekuatan tekan dan kekuatan impak. Pembuatan sampel uji komposit dilakukan menggunakan teknik hand lay up, yaitu proses pencampuran antara matriks dan serat kedalam jenis cetakan terbuka dilakukan dengan penuangan langsung secara manual. Pengujian tekan menggunakan standar ASTM D1621-00 dan pengujian impak menggunakan standar ASTM D6110-10. Hasil penelitian menunjukkan bahwa variasi fraksi volume 18% serat bemban dan 2% serat purun tikus berpengaruh terhadap kekuatan tekan dan kekuatan impak. Variasi fraksi volume 18% serat bemban dan 2% serat purun tikus menunjukkan kekuatan tekan tertinggi dengan rata – rata nilai kekuatan tekannya sebesar 48,286 MPa dan rata – rata beban maksimal 46.433,33 N dan pada variasi fraksi volume yang sama menunjukkan kekuatan impak tertinggi dengan rata – rata kekuatan impaknya sebesar 0,1486 Joule/mm2 dan rata – rata energi impak 19,16 Joule. Nilai yang didapatkan menyatakan bahwa dengan variasi fraksi volume penguat yang didominasi oleh muatan serat bemban akan meningkatkan nilai kekuatan tekan dan impak. Hal tersebut dipengaruhi oleh perbedaan karakteristik serat. 
PENGARUH VARIASI FRAKSI VOLUME KOMPOSIT POLYESTER-SERAT KULIT JAGUNG (Zea Mays) TERHADAP KEKUATAN IMPAK, BENDING, DAN TARIK Akhmad Syarief; Muhammad Amin
Scientific Journal of Mechanical Engineering Kinematika Vol 1 No 1 (2016): SJME Kinematika June 2016
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (413.306 KB) | DOI: 10.20527/sjmekinematika.v1i1.23

Abstract

One of the engineering materials is Composite. Composite is a material formed from a combination of two or more matrials that have stronger mechanical properties than the. The composite consists of two parts: a matrix as a binder or a composite protector and a filler as a composite filler. Natural fibers are an alternative filler, and the corn husk fiber (Zea Mays) is one of the many natural fibers grown in the Tanah Laut area of South Kalimantan.From the result of the research, the effect of volume fraction on the composite has the fiber skin fiber which has the highest strength for the impact price that is on the fiber with the volume fraction of 1% 99% fiber polyester corn fiber fiber which has the impact price of 0.0338 joule / mm2. In the highest strength bending test that is on the composite with a fraction of fiber volume of 3% that has a bending power of 3,5775MPa. And in composite tensile test, volume fraction 4% fiber 96% polyester and 5% fiber 95% polyrster have the same value of highest strength that is tensile pull of 1,7991 MPa.
EFFECT OF VARIATION FORM (QUADRILATERAL AND HEXAGON), PARTICLE SIZE AND PRESSURE ON THE CHARACTERISTICS OF BURNING CHARCOAL WOOD WASTE BRIQUETTES ALABAN AND RICE HUSK Akhmad Syarief; A’yan Sabitah; Luqmanul Hakim; Fadliyanur Fadliyanur; Dhanu Suryanta Suryanta; Defrihans Galang P; Hansen Rivaldo Napitulu; Aulia Aufa Ramadhasari; Ichwan Noor Ardiyat
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 1 (2021): SJME Kinematika Juni 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.v6i1.187

Abstract

Briquettes have been researched and developed as a substitute for solid fuels such as wood. One of them is briquettes made from processing waste such as sawdust, rice husks and even industrial waste. In this journal research, researchers are interested in knowing the characteristics of burning briquettes made from rice husk mixed with alaban wood charcoal waste which includes initial ignition, combustion rate and combustion temperature. The briquette samples used were varied in the form of rectangular and hexagonal shapes, mesh 20 and mesh 40 and the briquette printing pressure of 50 kg/cm2 and 100 kg/cm2. The results showed that the highest temperature for rectangular briquettes with a mesh of 40 and a compressive strength of 50 kg/cm2 was 412ºC and the lowest for rectangular briquettes with a mesh of 20 and a compressive strength of 100 kg/cm2. 333.33 ºC. Pressure strength affects the ignition speed, the faster the initial ignition and the longer the combustion rate due to the presence of air voids and the high moulding pressure affects the duration of the combustion process.
ANALISIS VARIASI SUBSTRAT AIR CUCIAN BERAS DAN KULIT PISANG MICROBIAL FUEL CELL TERHADAP ARUS LISTRIK Andy Nugraha; Aji Nihin; Akhmad Syarief
Scientific Journal of Mechanical Engineering Kinematika Vol 8 No 2 (2023): SJME Kinematika Desember 2023
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v8i2.266

Abstract

Microbial fuel cell (MFC) is a technology that utilizes the biological activity of microorganisms to produce electricity from organic energy in the form of waste. Waste that is often encountered in everyday life, some of which are rice washing water and banana peel waste, which are easy to find and are often thrown away without being used, even though they contain organic content, which is a food source for microbes, which can later be converted into metabolic products from these microbes to produce electricity. Electricity within the microbial fuel cell (MFC) system. The microbial fuel cell in this research used a variety of substrates of rice washing water, banana peels and a mixed substrate of rice washing water and banana peels, as well as variations in incubation times of 3, 5 and 7 days. From the research that has been carried out, it is known that variations in the substrate mixture of rice washing water and banana peels (50%; 50%) have the greatest electric current, namely 0.262 mA at an incubation time of 5 days. In all substrate variations, there was an increase in electric current on the 3rd and 5th days of incubation and a decrease on the 7th
Co-Authors A’yan Sabitah Abdul Ghofur Achmad Azhar Basyir Ade Azhari Rahmatuloh Ahmad Ramadan Aji Nihin Akhmad Ghiffary Budianto Akhmad Maulana Gumai Akhmad Wahyudi Akhmad Yafie Andy Nugraha Andy Nugraha Apip Amrullah Aulia Aufa Ramadhasari Bagus Lutfiwijaya Baramsyah Baramsyah Candra Dwi Putra Dadang Aling Setiawan Defrihans Galang P Defrihans Galang Putranto Dhanu Suryanta Dhanu Suryanta Suryanta Dwi Suci Adianto Fadliyanur Fadliyanur Fadliyanur Fadliyanur Fadliyanur Hansen Rivaldo Napitulu Hansen Rivaldo Napitupulu Ichwan Noor Ardiyat Isworo, Hajar Lukmanul Hakim Luqmanul Hakim Maidi Maidi Mastiadi Tamjidillah Ma’ruf Ma’ruf Misbachudin Misbachudin Moh. Sulhan Muhammad Ainur Rahman Muhammad Amin Muhammad Arzy Satria Muhammad Nizar Ramadhan Muhammad Nizar Ramadhan Nanda Dwiguna R.M.B Agung E.W Rangga Mahesa Ricky Indriyanto Ripal Anugrahto Sabitah, A'yan Sigit Mujiarto Taufik Irfansyah Sofian Tumanggor, Agustina Hotma Uli Yopi Riyanto Yudistira Bayu Setiambodo