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All Journal Jurnal Rekayasa Sipil dan Desain Indonesian Fisheries Research Journal Golden Ratio of Social Science and Education JRIIN :Jurnal Riset Informatika dan Inovasi
Qurrahman, Taufiq
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Social Sciences Other

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Rancang Bangun Aplikasi Penyewaan Mobil Tronton Secara Online Berbasis Web Menggunakan Metode Prototype di PT. Mitra Buana Suradinata Kurnia, Denis Yunda Putri; Juniarti, Dini; Qurrahman, Taufiq; Saprudin
Jurnal Riset Informatika dan Inovasi Vol 3 No 1 (2025): JRIIN : Jurnal Riset Informatika dan Inovasi
Publisher : shofanah Media Berkah

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Abstract

Kemajuan teknologi informasi yang pesat telah mendorong berbagai perusahaan untuk mengintegrasikan sistem digital guna mengoptimalkan proses bisnisnya. PT. Mitra Buana Suradinata sebagai perusahaan yang bergerak di bidang penyewaan kendaraan niaga masih menghadapi kendala dalam proses pemesanan mobil tronton yang dilakukan secara konvensional melalui media komunikasi seperti Whatsapp atau telepon. Prosedur ini dinilai kurang efisien dan memiliki keterbatasan dalam menjangkau calon pelanggan secara luas. Sebagai upaya mengatasi permasalahan tersebut, maka dilakukan perancangan dan implementasi aplikasi penyewan mobil tronton berbasis web dengan menerapkan metode prototype. Metode ini dipilih karena memiliki keunggulan dalam mengembangkan sistem yang adaptif melalui pendekatan iteratif, yang memungkinkan perbaikan sistem berdasarkan masukan pengguna. Aplikasi yang dirancang memiliki sejumlah fitur utama, antara lain penyajian informasi ketersediaan kendaraan secara real-time, formulir pemesanan secara online, pengelolaan data stok kendaraan, dan pembuatan laporan transaksi. Sistem dikembangkan menggunakan bahasa pemrograman PHP dan MySQL, serta diuji menggunakan metode black box untuk memastikan kesesuaian fungsi sistem dengan kebutuhan pengguna. Hasil dari implementasi ini menunjukkan bahwa aplikasi ini mampu meningkatkan efisiensi dalam proses pemesanan, memperkuat transparansi informasi, dan memudahkan pengelolaan data penyewaan.
The Effect of Investment, Export-Import, and Inflation Level on Economic Growth in Indonesia from The Perspective of Islamic Economics in 2004-2024 with The Vector Error Correction Model Approach Dewi, Anisa Sukma; Supriyaningsih, Okta; Qurrahman, Taufiq
Golden Ratio of Social Science and Education Vol. 5 No. 2 (2025): June - November
Publisher : Manunggal Halim Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52970/grsse.v5i2.1411

Abstract

This study aims to analyze the influence of investment, export-import, and inflation rate on economic growth in Indonesia from the perspective of Islamic economics during the period 2004–2024. The Vector Error Correction Model (VECM) identifies short-term and long-term relationships among these variables. The data employed are annual secondary data from various official sources, such as the Central Bureau of Statistics and Bank Indonesia. The results indicate that, in the long term, investment and exports have a significant positive effect on economic growth, while inflation has a negative impact. In the short term, the relationships among these variables demonstrate complex dynamics, yet remain consistent with Islamic economic theory, which emphasizes stability, justice, and sustainable growth. This study provides important implications for macroeconomic policies aligned with sharia principles, particularly in efforts to achieve inclusive and equitable economic development in Indonesia.
Perbandingan antara Campuran Pasir Baik dengan Pasir Buruk pada Perbaikan Tanah Dasar Jalan Terhadap Daya Dukung Setelah Dilakukan dan Tidak Dilakukannya Swelling Potential Ditinjau Terhadap Tebal Perkerasan Jalan Qurrahman, Taufiq; Iswan, Iswan; Sulistyiorini, Rahayu
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1775

Abstract

Swelling of clay soil has an impact on building construction. The problem that occurs in Marga Kaya Village, in the rainy season the soil is mushy and the carrying capacity becomes low so that the road is bumpy and the road body decreases. This study uses good sand stabilization material and bad sand with a mixture variation of 5%, 10% and 15% This study aims to find out the thick decrease in road pavement from each addition of mixed variations. Cbr results unsoaked and soaked maximum good sand occurs in a mixture of sand 15% with a value of 14.2% and 3.2%. The thickness of pavement on CBR unsoaked and soaked sand is well efficient on a mixture of sand 15% with a thickness of D1 = 2.25 cm, D2 = 20 cm and D3 = 10 cm, and soaked D1 = 8.75 cm, D2 = 20 cm and D3 = 10cm. Cbr unsoaked and soaked maximum value of bad sand occurs in 15% sand mixture with values of 13.9% and 2.6%. Thickness of pavement on CBR unsoaked and soaked bad sand maximum on the sand mixture 15% with thickness D1 = 2.5 cm, D2 = 20 cm and D3 = 10 cm, and soaked with thickness D1 = 9.25 cm, D2 = 20 cm and D3 = 10 cm. The value of swelling decreased from 11.4% to 5.7% and 8% in the addition of sand 15%.
COMPARATIVE STUDY ON BIO-BRIQUETTE PRODUCTION USING COCONUT SHELL AND SEASHELL: EFFECTS OF SIZE, RATIO, PYROLYSIS, AND BINDER Dewi, Resti Nurmala; Perceka, Medal Lintas; Dia Utari, Siluh Putu Sri; Andrayuga, I Wayan; Azimatun, Muhamad Maulana Nur; Qurrahman, Taufiq; Arifin, Samsul; Ardiyanti, Putu Ayu; Pajriyanti, Nurlaela; Irwandi, Nurul Anisa
Indonesian Fisheries Research Journal Vol 31, No 1 (2025): June (2025)
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.1.1.2025.%p

Abstract

Briquettes are seen as a substitute for alternative fuels generated through pyrolysis. A common type of briquette is charcoal made from coconut shells. However, they have poor combustion duration and excessive combustion smoke. It is thought that adding shells to coconut shell briquettes can increase their quality while making better use of waste since shells have adsorption characteristics. Hence, this study intended to produce shells briquettes on many main factors, namely pyrolysis time, particle size, raw materials ratio, and binder concentration. The method utilized pertained to preliminary study by blending pyrolyzed coconut shell charcoal, shells, and tapioca flour. In line with the American Standard Testing and Material (ASTM) 2014, proximate analysis was conducted using the Thermogravimetric Analysis 201; in contrast, briquette calorific value was determined using the GDY-1A bomb calorimeter, which is in compliance with ISO 1928:2020. According to the findings, the best shell briquettes was found at 2.5 hours pyrolysis durations with a particle size of 50 mesh, a raw material ratio of 3:1 (charcoal : shell) and 50% binder concentration with 13.53 ± 0.23% water content; 39.91 ± 0.31% volatile matter content, 15.70 ± 0.07% ash content, 67.66 ± 0.68% fixed carbon content) (P < 0.05), and a calorific value of 1,942.126 cal/g. Nonetheless, the results were not ideal as the calorific value was lower compared to full charcoal briquettes. Therefore, to improve proximate quality and combustion efficiency, it is required to combine seashells with other materials that are higher in carbon or to modify the method.
Co-Authors Andrayuga, I Wayan Ardiyanti, Putu Ayu Azimatun, Muhamad Maulana Nur Dewi, Anisa Sukma Irwandi, Nurul Anisa Iswan Iswan Juniarti, Dini Kurnia, Denis Yunda Putri medal lintas perceka Okta Supriyaningsih Pajriyanti, Nurlaela Resti Nurmala Dewi Samsul Arifin Saprudin siluh putu sri dia utari Sulistyiorini, Rahayu