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All Journal Journal of Earth and Marine Technology (JEMT) Abdi Jurnal Publikasi Journal of Research and Publication Innovation Wilangan : Jurnal Inovasi dan Riset Pendidikan Matematika
Muhammad Reynaldi
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Social Sciences Transportation Other

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Design of Drainage System Coal Mine at PT. Tebo Agung International Site Project, Semambu Village, Sumay District, Tebo Regency, Jambi Muhammad Reynaldi
Journal of Earth and Marine Technology (JEMT) Vol 1, No 2 (2021)
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.2021.v1i2.1744

Abstract

Tebo Agung Internasional Ltd is one of the companies in coal mining that employs the open-pit mining method. This sort of method will create a large basin that can accumulate water inside the mining pit. The drainage system is applied at the Pit-1 Site Semambu is mine-dewatering carried out by draining the water into the sump so that it can be pumped out of the mining area and prevent the runoff from coming inside through an open drainage system (ditch). The result of data analysis demonstrated that referring to the daily rainfall in 2010 – 2019 through the distribution of Log Person Type III, the maximum rainfall being planned was 508.019 mm/day within the return period of 5 years. The intensity of rainfall at the research site was 82.5 mm/hour having a rain duration averagely of 3.1 hours/day. Pit-1 Site Semambu had a catchment area around 469,317.15 m2 and a water discharge totally 61,238.81 m3/day derived from rainwater discharge of 48,530.48 m3/day and runoff water discharge 12,708.33 m3/day, whereas the capacity of the temporary accommodating pond (Sump) was 39,539.55 m3. The pump at the research site could not be operated anymore (broken). Accordingly, the recommendation that can be given to the company is changing the broken pumps with 4 units of multi fall 420 pumps having operating speed 1,300 rpm and actual discharge yielded by the pump 871.64 m3/hour. The pump worked for 14 hours/day and the total water discharge that could be produced was 12,202.96 m3/day. Open channel (ditch) at Pit-1 Site Semambu was the only one with accommodated discharge 1.27 m3/second. Thus, the recommendation that could be delivered to optimally prevent the runoff water coming into the mining area is by adding 2 ditches having the capacities of 0.90 m3/second and 0.75 m3/second which have been adjusted to the planned water discharge.
PERAN TEKNOLOGI AKUNTANSI DI SMK YPUI PARUNG Arie Ardiansyah; muhammad Rizqi Agung; Muhammad reynaldi; Didi Ciswanto; Ashari; Rayi Prasetyo Nugroho; Nurcahaya Pakapahan; Ita Rosita; Tati Muniroh
Abdi Jurnal Publikasi Vol. 1 No. 2 (2022): November
Publisher : Abdi Jurnal Publikasi

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Abstract

Perkembangan teknologi telah memberikan dampak yang signifikan dalam bidang akuntansi. Dengan adanya software akuntansi yang membantu proses pencatatan transaksi, akuntan dapat menyelesaikan pekerjaannya dengan lebih cepat dan akurat. Selain itu, sistem pengelolaan keuangan yang terintegrasi dengan software akuntansi memudahkan pengendalian keuangan perusahaan. Hal ini menunjukkan bahwa teknologi telah membantu perkembangan bidang akuntansi menjadi lebih efisien dan bermanfaat bagi para pelaku bisnis. Misalnya seperti, sistem pengelolaan keuangan yang terintegrasi dengan software akuntansi memudahkan pengendalian keuangan perusahaan. Teknologi seperti sistem akuntansi berbasis cloud dan sistem pembayaran elektronik juga telah banyak digunakan dalam bidang akuntansi, membantu perusahaan dalam mengelola keuangan dan mempercepat proses akuntansi. Hal ini menunjukkan bahwa teknologi telah membantu perkembangan bidang akuntansi menjadi lebih efisien dan bermanfaat bagi para pelaku bisnis.  
PENGEMBANGAN E-MODUL MATEMATIKA BERBANTU PERMAINAN DOMINO CARD EKSPONEN UNTUK MENDUKUNG KEMAMPUAN BERPIKIR KRITIS SISWA Muhammad Reynaldi; Etika Khaerunnisa
Wilangan: Jurnal Inovasi dan Riset Pendidikan Matematika Vol 5, No 3 (2024): September 2024
Publisher : FKIP Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56704/jirpm.v5i3.25061

Abstract

Penelitian ini dilatar belakangi oleh rendahnya kemampuan berpikir krtis siswa yang disebabkan karena bahan ajar guru kurang membantu dalam pengembangan kemampuan berpikir kritis siswa dan tampilan pada bahan ajar yang digunakan kurang menarik mengakibatkan siswa menjadi jenuh dan bosan dalam proses pembelajaran. Oleh karena itu, diperlukan pengembangan E-Modul berantu permainan domino card eksponen untuk mendukung berpikir kritis siswa. Penelitian ini menggunakan model pengembangan ADDIE. Penelitian ini dilaksanakan di SMP Negeri 1 Pabuaran dengan subjek penelitian kelas IX berjumlah 25 siswa. Hasil uji kelayakan ahli materi diperoleh nilai 97% dan hasil ahli media diperoleh nilai 76%, sehingga didapat kriteria sangat valid. Hasil uji kepraktisan dari respon guru diperoleh nilai 97% dan hasil dari respon siswa diperoleh nilai 86%, sehingga didapat kriteria sangat praktis. Hasil uji keefektivan dengan post test untuk mengukur peningkatan berpikir kritis siswa setelah menggunakan produk E-Modul berantu permainan domino card eksponen diperoleh sebesar 84% dengan kriteria efektif. Berdasarkan hal tersebut, produk yang dikembangkan memenuhi kriteria valid, praktis dan efektif sehingga E-Modul berantu permainan domino card eksponen layak untuk digunakan dalam proses pembelajaran.
PREDIKSI HARGA MINYAK MENTAH DENGAN MENGGUNAKAN ALGORITMA CART (CLASSIFICATION AND REGRESSION TREE) Muhammad Reynaldi; Santi Rahayu; Teti Desyani
Journal of Research and Publication Innovation Vol 3 No 1 (2025): JANUARI
Publisher : Journal of Research and Publication Innovation

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Abstract

Crude oil is an important energy source that experiences significant price fluctuations due to various factors such as geopolitics and global market dynamics. Research conducted by Muhammad Reynaldi in 2024 using the title ‘‘Crude Oil Price Prediction Using the CART (Classification and Regression Tree) Algorithm’’, aims to disseminate examples of crude oil price predictions carefully and easily interpreted. The problem faced in this study is the difficulty of predicting crude oil prices due to fluctuations determined by many external factors. The purpose of this study is to create a more accurate prediction method with traditional methods, and to assist decision making in the energy sector. The results of the study show that the CART solving procedure for predicting crude oil prices with an MSE value of 0.892, an MAE value of 0.700, an RSME value of 0.944, and an R-square value of 0.957. This study places significance on overcoming the challenges of crude oil price fluctuations and provides simple solutions for governments, companies, and energy industry players.
Co-Authors Andi Setyawan Arie Ardiansyah Ashari Devin Lucky Gunawan Didi Ciswanto Etika Khaerunnisa Fajar Muharam Ita Rosita muhammad Rizqi Agung Nurcahaya Pakapahan Rayi Prasetyo Nugroho Santi Rahayu Tati Muniroh Teti Desyani Tuty Mutiah