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Aplikasi Web Sistem Presensi dengan Python dan Javascript Khoiruddin, Fikri; Amelia, Renita; Azahra, Fatimah; Agnur, Aliffa; Alfia, Fairuz Mifta; Madina, Rakha; Damiat, Arif Fauzulghoni Syahreza; Kusuma, Bagas; Trinoto, Andreas Adi
Jurnal Riset dan Aplikasi Mahasiswa Informatika (JRAMI) Vol 6, No 02 (2025): Jurnal Riset dan Aplikasi Mahasiswa Informatika (JRAMI)
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/jrami.v6i02.13667

Abstract

Aplikasi web sistem presensi berbasis pengenalan wajah menggunakan Python dan JavaScript dirancang untuk meningkatkan efisiensi dan akurasi dalam pencatatan kehadiran siswa di lingkungan pendidikan. Teknologi biometrik pengenalan wajah, yang diimplementasikan menggunakan library OpenCV pada Python, memungkinkan pendeteksian wajah secara real-time. JavaScript digunakan untuk mendukung antarmuka yang interaktif dan responsif. Metode Rapid Application Development (RAD) diterapkan untuk mengembangkan aplikasi ini, yang melibatkan kolaborasi erat dengan pengguna untuk menghasilkan sistem yang sesuai kebutuhan. Pengujian menunjukkan bahwa aplikasi mampu mendeteksi wajah siswa dengan tingkat akurasi tinggi dalam kondisi pencahayaan optimal. Sistem ini juga memiliki kompatibilitas lintas perangkat, meningkatkan aksesibilitas dan kemudahan penggunaan. Dengan mengintegrasikan teknologi ini, aplikasi diharapkan memberikan solusi inovatif yang mendukung proses pembelajaran yang lebih interaktif, efisien, dan akurat.
THE ROLE OF THE INSTAGRAM ACCOUNT @INFODARJO IN THE DISSEMINATION OF LOCAL INFORMATION IN SIDOARJO Kusuma, Bagas; Istiqomah
Proceeding of International Conference on Social Science and Humanity Vol. 2 No. 2 (2025): Proceeding of International Conference on Social Science and Humanity
Publisher : PT ANTIS INTERNATIONAL PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61796/icossh.v2i2.436

Abstract

Objective: This research aims to understand the role of the Instagram account in spreading local information. Method: This study uses a descriptive qualitative method to analyze 'The Role of Instagram Account @infodarjo in the Dissemination of Local Information in Sidoarjo.' This research employs observation and account analysis as data collection techniques. Observations will be made by monitoring the activities that occur. Account analysis will be conducted by analyzing the activities carried out through the platform, from story posts, photo or video uploads on the account, to the responses received from social media users. Results: Based on the observations that have been made, this account actively shares information about current events, traffic, local events, and various public services. The speed and consistency in uploading information make it easier for the community to obtain the latest news compared to conventional media. Instagram accounts like @infodarjo serve as an alternative medium that is fast, interactive, and easily accessible to the public, especially the younger generation. The high level of user interaction indicates that this account is not only a medium for conveying information but also a platform for communication and discussion for the people of Sidoarjo. Novelty: Instagram accounts like @infodarjo serve as an alternative medium that is fast, interactive, and easily accessible to the public, especially the younger generation. The high level of user interaction indicates that this account is not only a medium for conveying information but also a platform for communication and discussion for the people of Sidoarjo.
Effect of Different Temperatures in Magnetite Synthesis on Methylene Blue Adsorption Ananda, Dea Dwi; Napoleon, Sultan; Tarigan, Thessa Octavia Joyetta; Yulita, Tiara Rizki; Alivia, Latisa Stefi; Kusuma, Bagas; Fajri, M. Rizki; Putri, Kayla Sophia; Artdero, Nayantaka Virsa; Nurwanto; Hartono, Rudi; Rahmat Basuki
Sorption Studies Vol. 1 No. 2 (2025): Sorption Studies, December 2025
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55749/ss.v1i2.84

Abstract

This study aims to synthesize magnetite (Fe₃O₄) particles using the coprecipitation method, with variations in temperature (70°C and 90°C) and reaction system (open and closed) to evaluate their effects on product quality. Characterization was conducted using FTIR, XRD, and organoleptic observation to confirm the formation of Fe₃O₄. Additional tests included magnetic attraction measurements through mass response and adsorption capacity (Q) analysis using methylene blue. FTIR analysis showed absorption bands at 3417.00 cm⁻¹, 1627 cm⁻¹, 1404 cm⁻¹, and 578 cm⁻¹, indicating the presence of O–H, C=O, and Fe–O functional groups. XRD patterns revealed diffraction peaks at 2θ values of 30.27°, 35.23°, 43.22°, 53.71°, 57.43°, and 62.11°, confirming the spinel crystal structure of Fe₃O₄. The sample synthesized at 90°C under closed conditions exhibited a darker black color and higher mass yield, suggesting improved crystallinity and phase purity. The closed system also showed higher adsorption capacities of 0.0008 mmol·g⁻¹ at 70°C and 0.0018 mmol·g⁻¹ at 90°C, along with stronger magnetic response. The open system produced a black precipitate with lower yield and weaker magnetic response, suggesting oxidation of Fe²⁺ to Fe³⁺ due to direct contact with oxygen, leading to the formation of compounds such as hematite or maghemite with lower magnetic properties. These results confirm that higher reaction temperatures and closed conditions optimally enhance the quality and stability of magnetite.