Article Per Year (5 Year)
p-Index From 2020 - 2025
0.61
P-Index
This Author published in this journals
All Journal COMMUNITY : Jurnal Pengabdian Kepada Masyarakat Journal of Science Technology (JoSTec)
Sihotang, Rinto
Unknown Affiliation
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Environmental Science Social Sciences Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Control Inventory of Raw Materials Using Supply Probabilistic with Q Method (Continuous Review Method) in the Animal Feed Industry Shrimp Sihotang, Rinto; Handayani, Rina
Journal of Science Technology (JoSTec) Vol. 6 No. 1 (2024): Journal of Science Technology (JoSTec)
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/jostec.v6i1.789

Abstract

The ingredients used to make shrimp feed include soybean meal, shrimp head meal, squid flour, wheat flour, fish head meal, and other components. The demand for companies to produce shrimp feed varies and is unpredictable, leading to a shortage of raw materials and the inability to fulfill orders. To solve this problem, the company places special raw material orders or surprise orders. However, sudden orders result in higher inventory costs than normal company orders. This study aims to determine the optimal raw material order, to minimize inventory costs through a probabilistic model of raw material inventory control with the Q method (continuous review method). Based on the results of the Q method, optimal order quantity (q), reorder points (r), and safety stock (Ss) were obtained. The total inventory cost generated in the Q method was lower than the total inventory cost used by the company, with a total savings of 6.11% per year.
IMPLEMENTASI PERMAINAN TRADISIONAL MODIFIKASI INDUSTRIAL ENGINEERING UNTUK MENINGKATKAN LITERASI NUMERASI DI SDN 173280 LOBU SIREGAR Handayani, Rina; Sitompul, Sahat; Sihotang, Rinto
COMMUNITY : Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2025)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/community.v5i1.6160

Abstract

Numeracy literacy is a basic skill that is very important for elementary school students in facing the challenges of the 21st century. This research aims to improve the numeracy literacy of SD Negeri 173280 Lobu Siregar students through the implementation of traditional games modified with the concept of Industrial Engineering. The method used was a qualitative approach with a participatory action research design. The research subjects were 45 students of grades III-V of SD Negeri 173280 Lobu Siregar. The modified traditional games include Congklak Numeration, Jumping Rope Math, and Statistical Ladder Snakes developed with the principles of ergonomics, efficient work systems, and optimization of the learning process. Data were collected through pre-test and post-test of numeracy skills, observation of learning activities, and interviews with teachers and students. The results showed a significant increase in students' numeracy literacy skills by 35% from an average score of 65 to 88. Students also showed high enthusiasm in learning with participation rate reaching 95%. The implementation of Industrial Engineering concepts in game design proved effective in increasing the efficiency of the learning process and reducing the time to understand math concepts by 40%. This service program makes a real contribution to improving the quality of basic education and can be used as a replication model for other schools. ABSTRAK Literasi numerasi merupakan kemampuan dasar yang sangat penting bagi siswa sekolah dasar dalam menghadapi tantangan abad 21. Penelitian ini bertujuan untuk meningkatkan literasi numerasi siswa SD Negeri 173280 Lobu Siregar melalui implementasi permainan tradisional yang dimodifikasi dengan konsep Industrial Engineering. Metode yang digunakan adalah pendekatan kualitatif dengan desain penelitian tindakan partisipatif (Participatory Action Research). Subjek penelitian adalah 45 siswa kelas III-V SD Negeri 173280 Lobu Siregar. Permainan tradisional yang dimodifikasi meliputi Congklak Numerasi, Lompat Tali Matematika, dan Ular Tangga Statistik yang dikembangkan dengan prinsip-prinsip ergonomi, sistem kerja yang efisien, dan optimasi proses pembelajaran. Data dikumpulkan melalui pre-test dan post-test kemampuan numerasi, observasi aktivitas pembelajaran, dan wawancara dengan guru dan siswa. Hasil penelitian menunjukkan peningkatan signifikan kemampuan literasi numerasi siswa sebesar 35% dari skor rata-rata 65 menjadi 88. Siswa juga menunjukkan antusiasme yang tinggi dalam pembelajaran dengan tingkat partisipasi mencapai 95%. Implementasi konsep Industrial Engineering dalam desain permainan terbukti efektif meningkatkan efisiensi proses pembelajaran dan mengurangi waktu pemahaman konsep matematika hingga 40%. Program pengabdian ini memberikan kontribusi nyata dalam peningkatan kualitas pendidikan dasar dan dapat dijadikan model replikasi untuk sekolah-sekolah lain.
Control Inventory of Raw Materials Using Supply Probabilistic with Q Method (Continuous Review Method) in the Animal Feed Industry Shrimp Sihotang, Rinto; Handayani, Rina
Journal of Science Technology (JoSTec) Vol. 6 No. 1 (2024): Journal of Science Technology (JoSTec)
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/jostec.v6i1.789

Abstract

The ingredients used to make shrimp feed include soybean meal, shrimp head meal, squid flour, wheat flour, fish head meal, and other components. The demand for companies to produce shrimp feed varies and is unpredictable, leading to a shortage of raw materials and the inability to fulfill orders. To solve this problem, the company places special raw material orders or surprise orders. However, sudden orders result in higher inventory costs than normal company orders. This study aims to determine the optimal raw material order, to minimize inventory costs through a probabilistic model of raw material inventory control with the Q method (continuous review method). Based on the results of the Q method, optimal order quantity (q), reorder points (r), and safety stock (Ss) were obtained. The total inventory cost generated in the Q method was lower than the total inventory cost used by the company, with a total savings of 6.11% per year.
Co-Authors Rina Handayani, Rina Sitompul, Sahat