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All Journal JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang Majalah Ilmiah MOMENTUM SYAMIL: Jurnal Pendidikan Agama Islam (Journal of Islamic Education) Jurnal Elemen Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Otopro Jurnal ABDIMAS (Pengabdian kepada Masyarakat) UBJ Journal of Earth and Marine Technology (JEMT) Jurnal Rekayasa Energi dan Mekanika SYAMIL: JURNAL PENDIDIKAN AGAMA ISLAM (JOURNAL OF ISLAMIC EDUCATION)
Wahid, Muhammad Abdul
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Religion Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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PERHITUNGAN KEMAJUAN PENAMBANGAN BATU GRANIT DENGAN MENGGUNAKAN METODE PENAMPANG MELINTANG (CROSS SECTION) DI PT HANSINDO MINERAL PERSADA KECAMATAN SUNGAI PINYUH KABUPATEN MEMPAWAH PROVINSI KALIMANTAN BARAT Wahid, Muhammad Abdul; Yosomulyono, Sutarto; Meilasari, Fitriana
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 6, No 2 (2019): JURNAL MAHASISWA TEKNIK SIPIL EDISI JUNI 2019
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v6i2.35188

Abstract

PT Hansindo telah melakukan kegiatan penambangan batu granit kurang lebih tujuh tahun hingga saat ini. Agar mengetahui seberapa besar kemajuan penambangan yang telah berjalan hingga sekarang, maka dilakukan perhitungan kemajuan tambang yang dilakukan tiap periode tertentu. Penelitian ini bertujuan untuk mengetahui jumlah volume dan tonase cadangan tertambang dari awal penambangan hingga saat ini, mengetahui besar persentase cadangan tertambang, serta memproyeksi sisa cadangan dan umur tambang. Metode yang digunakan dalam penelitian ini adalah metode penampang melintang. Pengambilan data dilakukan di PT Hansindo Mineral Persada dengan melakukan pemetaan di areal quarry menggunakan Total Station untuk mendapatkan besaran areal quarry yang telah tertambang. Setelah itu, dibuat beberapa garis sayatan dengan rentang jarak tertentu menggunakan aplikasi AutoCAD 2007. Setelah didapatkan hasil sayatan, data tebal tanah humus dan tanah penutup dimasukkan untuk mengetahui besaran volume cadangan batu yang telah tertambang hingga saat ini. Hasil pemetaan topografi pada area quarry PT. Hansindo Mineral Persada dengan menggunakan Total Station telah terjadi perubahan rona pada area quarry dengan topografi elevasi tertinggi 58 meter dan terendah 29 meter. Volume dan tonase batu granit yang telah tertambang dihitung dengan menggunakan metode cross section didapat hasil sebesar 809.238,0635 m³ atau 2.160.665,63 ton. Adapun persentase cadangan tertambang yang didapat adalah sebesar 71,99% dari total cadangan awal sebesar 1.124.087,578 m³ atau 3.001.313,834 ton. Apabila PT Hansindo Mineral Persada dapat terus memproduksi batu granit sebesar 168.000 m³/tahun, maka sisa umur tambang batu granit PT Hansindo Mineral Persada adalah 1 tahun 10 bulan. Faktor yang mempengaruhi tidak sesuainya rencana penambangan dengan realisasi adalah banyak areal yang tidak dapat dibebaskan saat berlangsungnya proses penambangan. Kata kunci: Kemajuan, Sayatan, Volume Cadangan Tertambang
Bauxite Resource Estimation Analysis Using Ordinary Kriging and Inverse Distance Weighting in West Kalimantan Wahid, Muhammad Abdul; Winarno, Eddy
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5340

Abstract

PT X is a mining company engaged in bauxite mining which is located in Nanga Tayap District, Ketapang Regency, West Kalimantan Province. Currently the company is carrying out further exploration activities to find potential bauxite resources which will later be upgraded into reserves for mining. In resource estimation, there are several methods that can be used, such as the Nearest Neighbor Point method, Inverse Distance Weighting, and Ordinary Kriging. This research aims to analyze two resource estimation methods, namely Inverse Distance Weighting and Ordinary Kriging for resource estimation and choose the best method based on geological conditions and RMSE value parameters. Based on the results of this research, the estimated value of bauxite resources using the IDW method obtained a tonnage of 1,046,874.99 tons with an average Al₂O₃ content of 47.28%. Meanwhile, the estimated bauxite resource value using the OK method obtained a tonnage of 1,046,875.01 tonnes with an average Al₂O₃ content of 48.15%. Based on the calculation of the Root Mean Squared Error (RMSE) value from the two methods, the respective RMSE values were obtained, namely IDW = 0.0001263 and OK = 0.0084145. From these results it can be concluded that the best method for estimating bauxite resources in the Enggang block is the Inverse Distance Weighting (IDW) method.
Overview Methods Calculation Resource and Reserve Estimation Wahid, Muhammad Abdul; Winarno, Eddy
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5344

Abstract

The calculation of resources and reserves is carried out base on several factors, namely: Sediment Geology, Exploration Method, Type of data owned, purpose of calculation, and desired level of confidence. There are several methods for calculating resources and reserves, including: Area of Influence, Cross Section, Polygon, Triangulation, Isoline, as well as several Interpolation Methods such as : Ordinary Kriging (OK), Neighborhood Nearest Point (NNP) and Inverse Distance Weighting (IDW). Therefore, it is necessary to carry out an analysis related to the method of calculating the right resources and reserves in order to produce more accurate estimates of resources and reserves. The author analyses by making comparisons between several previous studies by looking at the advantages and disadvantages of these methods based on existing literature studies.
Optimasi Kinerja Hidraulik pada Sistem Aliran Air dengan Teknologi T-Joint Pipa PLA dan Piston Cair Terkompresi Khoeron, Slamet; Wahid, Muhammad Abdul; Sutono, Sugoro Bhakti; Hudaya, Akhmad Zidni; Wibowo, Rianto; Tanaka, Imam Ridwan
JURNAL ILMIAH MOMENTUM Vol 20, No 1 (2024)
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v20i1.11195

Abstract

Penelitian ini mengembangkan sistem aliran air efisien menggunakan sambungan T pipa PLA dan teknologi piston cairan terkompresi untuk mengatur tekanan. Konfigurasi ini mencakup dua saluran masuk: satu sejajar dengan saluran keluar dan satu lagi miring pada sudut 45 derajat. Prinsip tekanan hidrostatis memainkan peran kunci dalam meningkatkan kecepatan dan konsistensi aliran air. Metode penelitian melibatkan pengaturan kondisi pada berbagai inlet dan outlet, dengan fokus pada pengaturan tekanan dan kecepatan aliran. Hasil menunjukkan peningkatan kecepatan aliran hingga 50.2 m/s dan tekanan maksimum 466.15 kPa, yang menunjukkan distribusi tekanan yang merata dan respons sistem yang stabil terhadap perubahan input. Implementasi strategi pengaturan dan algoritma penjadwalan kompresor efektif dalam mencapai kinerja hidraulik optimal, memungkinkan pengelolaan aliran air yang stabil dan efisien.
SIFAT MEKANIK SILICONE RUBBER SEBAGAI KANDIDAT BAHAN PENGGANTI ALAT LATIHAN SUTURING Dzulfikar, Muhammad; Pangestu, Wahyu Adi; Purwanto, Helmy; Wahid, Muhammad Abdul; Ismail, Rifky; Prawibowo, Hartanto
Jurnal Rekayasa Energi dan Mekanika Vol 4, No 1 (2024): JREM
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/JREM.v4i1.15

Abstract

Kulit manusia memiliki sifat viskoelastik, artinya kulit dapat memanjang ketika ditarik, dan kembali ke posisi semula ketika tarikan dilepas, sifat ini sama dengan sifat elastisitas karet. Karet terus berkembang dan meningkat seiring meningkatnya pertumbuhan kebutuhan alat medis. Karet silikon sebagai kandidat bahan alat latihan suturing/menjahit luka, dengan bahan karet silikon dipilih dari jenis silicone rubber RTV (Room Temperatur Vulcanizing) RTV-48 dan RTV-52. Sifat mekanik dari silicone rubber dari kekuatan tarik, perpanjangan putus menggunakan standar ISO 37 dan kuat sobek menggunkan standar ISO 34-1, sifat mekanik silicone rubber akan diuji menggunakan Mesin UTM / (Universal Testing Machine). Tujuan dari penelitian untuk mengetahui kelayakan karet silikon jenis RTV-48, dan RTV-52 dengan campuran katalis untuk digunakan sebagai kandidat bahan alat latihan menjahit luka. Dari hasil pengujian yang didapatkan pada RTV 48 campuran silicone rubber 150 ml dan 15 ml katalis mempuyai kekuatan tarik yang tertingi di angka 1,89 N/mm2, dan pengujian perpanjangan putus RTV 48 campuran silicone rubber 150 ml dan 10 ml katalis mempuyai yang tertingi di angka 194%,  untuk kuat sobek nilai tertingi didapatkan pada RTV 48 campuran silicone rubber 150 ml dan 10 ml katalis di angka 1,44 N/mm2, sedangkan RTV 48 campuran silicone rubber  150 ml dan 10 katalis menghasilkan modulus elastisitas 1,8 MPa dan 0,6 % regangan.
STUDI EKSPERIMENTAL PEMISAHAN MINYAK-AIR MENGGUNAKAN HIDROSIKLON-BUBBLE GENERATOR Catrawedarma; Sari, Eli Novita; Fiveriati, Anggra; Wahid, Muhammad Abdul; Pamuji, Dian Ridlo; Syaifuddin, Muhammad
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i2.285

Abstract

This research aims to analyze the performance of oil-water separation using a hydrocyclone-bubble generator. The bubble generator used was an ejector type to make it easier to suck in atmospheric air. The research was carried out by injecting an oil-water mixture through a bubble generator before entering the hydrocyclone system. The air flow injected into the bubble generator was varied from 0.1-1.5 lpm. From experimental studies, it was found that as the air flow increased, the split ratio also increased. The pressure drop at the overflow increases gently while the underflow pressure drop increases significantly along with increasing input air flow. The greater the input air flow, the more significant the difference in underflow and overflow pressure drop. It has implications for a larger pressure drop ratio. The greater the air flow, the greater the overflow efficiency decreases, and the underflow efficiency increases. The highest efficiency in overflow is 87.77%.
PENGARUH PENGGUNAAN PASIR SILIKA DAN PASIR PANTAI TERHADAP KEKUATAN TARIK PADA PENGECORAN LOGAM ALUMINIUM Utomo, Wahyu; Sari, Eli Novita; Fiveriati, Anggra; Wahid, Muhammad Abdul; Pamuji, Dian Ridlo
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

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

Abstract

Casting is the process of manufacturing molten metal with a mold to produce a shape close to the original shape. The commonly used molding sand is mountain sand, river sand and silica sand. This research aims to analyze defects and tensile test results of castings with various types of sand (beach sand and silica sand) and types of aluminum (ADC 12 aluminum and aluminum from waste cans). The casting method used is traditional sand blasting. The results show defects in the form of surface hardness, rat tails, shrinkage cavities, and pinholes. The tensile test showed that the highest Ultimate Tensile Strength (UTS) value was obtained from a mixture of Al ADC 12 with beach sand with an average UTS value of 172.44 MPa.
Development of Islamic Religious Education Learning Media Based on Articulate Storyline 3 in High Schools Idris, Husni; Adawiyah, Rabiatul; Wardhana, Kautsar Eka; Ainii, Qurrotu; Wahid, Muhammad Abdul
SYAMIL: Journal of Islamic Education Vol 12 No 2 (2024): SYAMIL: Journal of Islamic Education
Publisher : Pascasarjana Universitas Islam Negeri Sultan Aji Muhammad Idris Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21093/sy.v12i2.9182

Abstract

Islamic Religious Education (PAI) plays a crucial role in developing students' cognitive abilities and character. However, PAI learning is often dominated by lectures, as the content is mostly theoretical and normative. This lack of varied learning media has led to low student engagement. The demand for technological integration requires PAI teachers to utilize technology in their teaching, but many are not equipped to create interactive learning media. This study aims to develop PAI learning media using Articulate Storyline 3 and to assess students' motivation in using this media. The research uses a Research and Development (R&D) method, following Borg & Gall's 10-step model. It was conducted in six high schools in East Kalimantan. Preliminary field testing, involving 30 students, showed the following results: for media, 20.24% rated it very good, 41.67% good, 34.52% adequate, and 3.57% poor; for material, 22.50% rated it very good, 40.83% good, 35.42% adequate, and 1.25% poor; for learning, 28.79% rated it very good, 46.21% good, 23.11% adequate, and 1.89% poor. Similar positive results were found in further field testing. The analysis of learning outcomes using SPSS indicated a significant difference before and after using the media, with a Sig. (2-tailed) value of 0.000. This shows that interactive multimedia enhances students' learning performance.
Development of Islamic Religious Education Learning Media Based on Articulate Storyline 3 in High Schools Idris, Husni; Adawiyah, Rabiatul; Wardhana, Kautsar Eka; Ainii, Qurrotu; Wahid, Muhammad Abdul
SYAMIL: Journal of Islamic Education Vol 12 No 2 (2024): SYAMIL: Journal of Islamic Education
Publisher : Pascasarjana Universitas Islam Negeri Sultan Aji Muhammad Idris Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21093/sy.v12i2.9182

Abstract

Islamic Religious Education (PAI) plays a crucial role in developing students' cognitive abilities and character. However, PAI learning is often dominated by lectures, as the content is mostly theoretical and normative. This lack of varied learning media has led to low student engagement. The demand for technological integration requires PAI teachers to utilize technology in their teaching, but many are not equipped to create interactive learning media. This study aims to develop PAI learning media using Articulate Storyline 3 and to assess students' motivation in using this media. The research uses a Research and Development (R&D) method, following Borg & Gall's 10-step model. It was conducted in six high schools in East Kalimantan. Preliminary field testing, involving 30 students, showed the following results: for media, 20.24% rated it very good, 41.67% good, 34.52% adequate, and 3.57% poor; for material, 22.50% rated it very good, 40.83% good, 35.42% adequate, and 1.25% poor; for learning, 28.79% rated it very good, 46.21% good, 23.11% adequate, and 1.89% poor. Similar positive results were found in further field testing. The analysis of learning outcomes using SPSS indicated a significant difference before and after using the media, with a Sig. (2-tailed) value of 0.000. This shows that interactive multimedia enhances students' learning performance.
PENGARUH DIAMETER MAIN JET TERHADAP KINERJA MESIN PENGGERAK KAPAL NELAYAN SKALA KECIL Nugroho, Agung; Arifin, Syamsul; Wahid, Muhammad Abdul
Otopro Vol 20 No 1 Nov 2024
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v20n1.p7-12

Abstract

Environmental pollution caused by exhaust gases from two-stroke outboard engines, known for their high fuel consumption, is a significant issue for small-scale fishermen. This study aims to optimize fuel consumption and engine performance by examining the effect of main jet diameter on a 40 Hp two-stroke outboard engine. The experimental method was employed with three main treatments: main jet #150, #145, and #135. Testing was conducted by measuring fuel consumption at various engine speeds (rpm) – maximum, medium, and minimum – as well as the resulting boat speed. The results showed that using a larger main jet (#150) produced lower rpm and boat speed but higher fuel consumption. Conversely, the main jet #135 yielded higher rpm and boat speed with more efficient fuel consumption. However, potential long-term engine damage was indicated with the use of main jet #135. In conclusion, the main jet #145 is  considered optimal for normal operating conditions, offering a balance between engine performance and fuel efficiency.
Co-Authors Akhmad Zidni Hudaya Anggra, Fiveriati Catrawedarma Eddy Winarno, Eddy Finali, Asmar Firmansyah, Erik Helmy Purwanto Idris, Husni Kautsar Eka Wardhana Linda Indiyarti Putri Meilasari, Fitriana Muhammad Dzulfikar Muhammad Syaifuddin Nugroho, Agung Nugroho, Irvandianto Pamuji, Dian Ridlo Pangestu, Wahyu Adi Prasetyo, Sandif Prawibowo, Hartanto Qoniah, Lisa Nurul Qurrotu Ainii, Qurrotu Rabiatul Adawiyah Rianto Wibowo. Rifky Ismail Sari, Eli Novita Slamet Khoeron Sutono, Sugoro Bhakti Syamsul Arifin Tanaka, Imam Ridwan Wahyu Utomo Yosomulyono, Sutarto