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All Journal Knowbase : International Journal of Knowledge in Database Sainteks: Jurnal Sain dan Teknik Jurnal Pengabdian Masyarakat Nauli
Sufyan, Agi Agus Setiawan
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Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Social Sciences

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Physical and Mental Workload Measurement on Warehouse Division Operators of PT.X Using Objective Workload and Subjectives Workload Assessment Sufyan, Agi Agus Setiawan; Mulyana, Yayan; Kusumadewi, Afriani; Santang, Ilham Eka
Sainteks: Jurnal Sain dan Teknik Vol 6 No 2 (2024): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v6i2.786

Abstract

PT. X is one of the companies engaged in the Flavors and Fragrances. The role of employees as resources in work activities in the Warehouse Department is very important for the sustainability of work because almost all activities use human power, from receiving and storing, picking, packaging to loading, many still use human power and the most frequently done is the process of lifting and moving both raw materials and finished goods. The loads lifted are also diverse and in quite large quantities. Based on the results of interviews with operators, information was obtained that soreness in the waist, back and hands occurred as a result of poor work attitudes and heavy lifting loads. There are also psychological complaints experienced by the Warehouse Division due to the demands of work targets that are felt to be less relevant in each shift, causing stress and mental pressure that can affect performance and work results that are less than optimal. To determine the magnitude of the physical and mental workload of employees in the Warehouse Division, measurements were carried out using the hear rate reserve (%HR reserve) method and NASA-TLX (National Aeronautics and Space Administration Task Load Index) to see the physical and mental workload. From the measurement results, it is shown that the physical workload experienced is in the light and moderate categories ranging from 1% -43.5%, while for the mental load that has a high impact ranging from Weighted Workload (WWL).
Pelatihan E-Business untuk Siswa Sekolah Menengah Kejuruan Logistik Sumedang Aryanto, Anton; Santang, Ilham Eka; Yulianti, Dini; Sufyan, Agi Agus Setiawan; Mulyana, Yayan
Jurnal Pengabdian Masyarakat Nauli Vol. 3 No. 2 (2025): Februari, Jurnal Pengabdian Masyarakat Nauli
Publisher : Marcha Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/nauli.v3i2.194

Abstract

Program Studi Teknik Industri di Universitas Insan Cendikia Mandiri menyelenggarakan Program Pengabdian Kepada Masyarakat (PKM) dengan pelatihan e-Business bagi siswa-siswi SMK Logistik di Sumedang. Program ini dirancang untuk memberikan wawasan tentang kewirausahaan di era Industri 4.0, dengan mengedepankan pengenalan e-business secara umum. Selain pemahaman teknis, tujuan kegiatan ini adalah menumbuhkan motivasi untuk menjadi wirausahawan berorientasi global yang siap menghadapi tantangan di dunia bisnis modern. PKM ini juga bertujuan mengembangkan minat berwirausaha di kalangan siswa SMK sebagai langkah strategis mempersiapkan generasi muda yang produktif dan berkarakter, serta mampu bekerja di industri, melanjutkan studi, atau menjadi wirausaha kreatif dan bersaing secara global. Dengan pembentukan pola pikir bisnis di era digital, siswa diberikan kesempatan untuk merencanakan dan menjalankan usaha secara mandiri setelah menyelesaikan pendidikan.
BFV Homomorphic Encryption Algorithm as a Proposed Encryption Mechanism for the Votenow System of PT XYZ Muhamad Ikmal Wiawan; Agi Agus Setiawan Sufyan
Knowbase : International Journal of Knowledge in Database Vol. 5 No. 2 (2025): December 2025
Publisher : Universitas Islam Negeri Sjech M. Djamil Djambek Bukittinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30983/knowbase.v5i2.10132

Abstract

Confidentiality and integrity of voting results constitute major challenges in web-based e-voting systems, as vote tallying in conventional approaches still requires data decryption. This condition potentially enables intervention by private key holders and reduces trust in election outcomes. The votenow e-voting platform of PT XYZ does not yet support vote tallying in an encrypted state; therefore, an alternative encryption mechanism is required that does not significantly alter the existing system workflow. This study aims to evaluate the BFV (Brakerski–Fan–Vercauteren) Homomorphic Encryption algorithm as a proposed encryption mechanism for the PT XYZ e-voting system (product name anonymized). A controlled experimental method was applied using a testing prototype with encryption and decryption modules implemented in C++ based on the Microsoft SEAL library, while a PHP-based web interface was employed for data input and visualization. The evaluation assessed the time required to input 50,000 encrypted votes, vote tally accuracy using both decryption-based counting and direct ciphertext computation without decryption, total ciphertext size, verification time for encrypted data validity, ciphertext decryption time, and vote result presentation time. The results indicate that the input of 50,000 votes was completed within 5 minutes, meeting the 10-minute target. Vote tally accuracy reached 100% for both counting methods, and the ciphertext size of 383.4 MB remained below the 512 MB threshold. Furthermore, the encrypted data verification time was recorded at 225.8 seconds, ciphertext decryption time at 5 minutes and 15 seconds, and vote result presentation time via decryption at 13.816 seconds, all of which fall within acceptable operational limits. Based on these findings, the BFV algorithm is considered suitable for adoption as an encryption mechanism in the PT XYZ e-voting system, as it enables vote tallying in the encrypted domain while preserving the confidentiality and integrity of voter data.
Co-Authors Afriani Kusumadewi Aryanto, Anton Dini Yulianti Muhamad Ikmal Wiawan Santang, Ilham Eka Yayan M Mulyana