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All Journal Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Ekonomi dan Bisnis Metalurgi
Nengsih, Sulistia
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Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Implementasi Sistem Informasi Manajemen Layanan Pesan-Antar Berbasis Web terhadap Penurunan Waktu Pengiriman pada Proses Pengiriman Elpiji (Studi Kasus: Toko Anton) Nengsih, Sulistia; Pradana, Fajar; Chandra Saputra, Mochamad
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 8 No 13 (2024): Publikasi Khusus Tahun 2024
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Naskah ini akan diterbitkan di konferensi Nasional SENTRIN 2024
Financial Technology (Fintech) Dalam Perspektif Islam Tajudin, Farhan Ramdhani; Sukma, Hanny Andini; Nengsih, Sulistia; Fitriani, Fitriani; Alfahlevi, Mohamad Abduh
Jurnal Ekonomi dan Bisnis Vol 4 No 2 (2024): Jurnal Ekonomi dan Bisnis
Publisher : LPPM STIE Bisnis Internasional Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56145/jurnalekonomidanbisnis.v4i2.283

Abstract

Artikel ini memberikan tambahan ilmu pengetahuan serta memberikan pemaparan mengenai perkembangan bisnis diera financial technology (fintech) yang yang berlandaskan prinsip Islam, Islam memandang perkembangan teknologi merupakan sesuatu yang diperbolehkan selagi tidak bertentanggan dengan prinsip Syariah. Kemajuan financial technology (fintech) dan pengembangan bisnis Islam, dalam dunia bisnis di era revolusi industri 4.0 dan era society 5.0. mendapatkan perhatian penting karna zaman terus berkembang. Metode kualitataif dengan analisis deskriptif digunakan dalam penelitian ini, adapun rujukan yang digunakan dalam kajian ini yaitu berupa jurnal ilmiah, buku-buku, serta artikel ilmiah. Hasil dari penelitian ini pada dasarnya financial technology (fintech) dapat memudahkan manusia dalam memenuhi kebutuhannya seiring perkembangan zaman. Financial technology (fintech) memberikan dampak dan pengaruh yang baik bagi setiap aspek yang ada, terutama dalam aspek sosial, ekonomi, budaya, dan tentunya memudahkan para pelaku bisnis dalam mengembangkan usahanya selagi dimanfaatkan sesuai dengan prinsip Islam
Influence of Electrolyte Molarity and Applied Voltage on the Purification of Ferronickel by Electrolysis Method Astini, Vita; Meirawati, Selvia; Nengsih, Sulistia; -, Arif; -, Hasriyanti; Soedarsono, Johny Wahyuadi Mudaryoto; Zulfia, Anne
Metalurgi Vol 39, No 1 (2024): Metalurgi Vol. 39 No. 1 2024
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/metalurgi.2024.742

Abstract

The current advancements in the automotive industry highlight the critical need for electric vehicles, which require a reliable supply of nickel for battery production. A potential nickel source is Ferronickel's local content, which can be used as a secondary resource. However, research on converting smelted Ferronickel into electrolytic nickel is still limited. This study aims to examine the effects of electrolyte molarity and applied voltage during the electrolysis process for refining Ferronickel. The molarities of HCl employed in this research are 0.1, 0.25, 0.5, 0.75, and 1 M for 2 hours. Additionally, the molarities of HCl are set at 2, 3, and 4 M for 6 hours. Further experiments were performed using varying voltages of 1, 2, 4, 6, and 8 V while keeping the solution concentration constant at 1 M and maintaining an electrolysis duration of 2 hours. The electrolysis solution was subsequently analyzed using the AAS (atomic absorption spectrophotometry) test. The results indicated that higher molarity levels were associated with increased current, resulting in faster reaction rates and greater solubilization of nickel metal. The Ni concentration rose with higher molarity, increasing from 76.50 mg/L in .25 M HCl to 91.88 mg/L in 1 M HCl. In contrast, the Fe concentration remained nearly constant across various molarity levels, ranging from 11.81 mg/L in .25 M HCl to 11.95 mg/L in 1 M HCl, suggesting a minimal influence of molarity below 1 M. Fe exhibited a strong positive correlation with increasing electrolyte molarity, showing a significant rise in concentration from 49.06 g/L at 2 M to 90.17 g/L at 4 M. Ni showed a more modest response to elevated molarity, with concentrations increasing from 11.95 g/L at 2 M to 22.70 g/L at 4 M. The Ni concentration increased with the applied voltage up to 6 V, reaching 95.57 mg/L, but then decreased to 77.67 mg/L at 8 V, indicating that the optimum voltage is 6 V. The Fe concentration displayed slight fluctuations but remained relatively stable across different voltage levels, measuring 11.81 mg/L at 1 V and 12.28 mg/L at 8 V, indicating that the applied voltage does not significantly influence Fe concentration in the solution.
Co-Authors Alfahlevi, Mohamad Abduh Anne Zulfia Arif Arif Astini, Vita Chandra Saputra, Mochamad Fajar Pradana Fitriani Fitriani Hasriyanti Hasriyanti Johny Wahyuadi Soedarsono Meirawati, Selvia Sukma, Hanny Andini Tajudin, Farhan Ramdhani