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All Journal Elkom: Jurnal Elektronika dan Komputer Jurnal Pendidikan Fisika FKIP UM Metro Sinkron : Jurnal dan Penelitian Teknik Informatika JURNAL REKAYASA SISTEM INDUSTRI at-tamkin: Jurnal Pengabdian kepada Masyarakat Riau Journal of Empowerment IJISTECH (International Journal Of Information System & Technology) JURTEKSI Minda Baharu Jurnal Manajemen Informatika dan Sistem Informasi JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Rangkiang: Jurnal Pengabdian Pada Masyarakat Jurnal Computer Science and Information Technology (CoSciTech) Jurnal Sains Teknologi dalam Pemberdayaan Masyarakat Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika RANGKIANG: Jurnal Pengabdian Pada Masyarakat TEKNOSIA Jurnal Logistica Jurnal Tiyasadarma: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Ilmu Sosial dan Teknologi (SNISTEK) Analit: Analytical And Environmental Chemistry
Mardiansyah, Yopy
Institut Teknologi Batam, Indonesia
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ANALYSIS OF BLOOD COCKLE SHELL CONTENT AS A BIOCOMPOSITE MATERIAL ON ULTISOL SOIL Sari Rahmiati; Yopy Mardiansyah; Vitri Aprilla Handayani; Moh. Arafat Wasiru
Analit : Analytical and Environmental Chemistry Vol. 9, No. 01 April (2024) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v9i01.167

Abstract

This research used blood cockle shells (Anadara granosa) originating from consumption waste in the Batam City area. Cockle shell samples were taken and prepared for analysis of mineral content using the FTIR method, including CaCO3 and other minerals. The blood cockle shells were applied to ultisol soil in Batam City to improve its fertility. The shells were crushed into a fine powder, then mixed with ultisol soil with several treatments, including 0 grams (control), 10 grams, 20 grams, and 30 grams with a soil mass composition of 220 grams for each treatment. The mixture of soil and shell powder was stirred until homogeneous before being applied to mustard greens plants. Based on the research results, the addition of shell powder had an effect on the level of plant fertility. The experimental results carried out showed an effect on each treatment given. This is in line with statistical testing with analysis of variance, obtaining a sig. value of 0.037 < α = 5% (0.05), indicating a significant difference in treatment for each treatment.
Analisis Quality Function Deployment (Qfd) Untuk Pengembangan Sistem Electro Pneumatic Berbasis Programmable Logic Controller (Plc) Pada Mesin Semi Otomatis Tester Coding Battery Chandra Aditya Luhur Wicaksono; Ansarullah Lawi; Yopy Mardiansyah
Teknosia Vol. 19 No. 1 (2025): Vol. 19 No. 01 (2025): June 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v19i1.41182

Abstract

This research aims to develop a semi-automatic battery voltage testing machine using electro-pneumatic technology controlled by a Programmable Logic Controller (PLC) at PT VARTA Microbattery Indonesia. This machine is designed to enhance the efficiency and accuracy of testing lithium round cell 2/3 AA batteries, which were previously tested manually. The machine development utilizes the Quality Function Deployment (QFD) method, which identifies user needs through interviews and questionnaires, then translates them into technical characteristics within the system. The analysis using the House of Quality (HoQ) showed that the main priorities are testing accuracy, speed, ease of operation, and safety. This system integrates electro-pneumatic components, sensors, and PLC to control the machine's movements, ensuring a more efficient and consistent production process. The results indicate that the implementation of this semi-automatic machine can reduce the testing cycle time and improve battery production productivity.
ANALYSIS OF CONCERN REPORT AND STOP WORK AUTHORITY ON EMPLOYEE OCCUPATIONAL SAFETY AT PT XY Meldra, Delia Meldra; Yopy Mardiansyah
JURNAL LOGISTICA Vol. 4 No. 2 (2026): VOL 4.NO.2.JUNI 2026
Publisher : LPPM-ITEBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62375/xa45nn38

Abstract

Occupational health and safety is a crucial aspect in manufacturing industries as it directly affects employee productivity and well-being. PT XY still faces occupational accident risks despite implementing an Occupational Health and Safety Management System. This study aims to analyze the effect of Concern Report Card and Stop Work Authority implementation on employee safety levels. This research uses a descriptive method with a cross-sectional approach. Data were collected through document studies, field observations, and interviews, including work accident data in 2023 and the implementation data of Concern Report and Stop Work in 2024 in the machine shop and weldshop departments. Data analysis was conducted using the Ryan–Joiner normality test and multiple linear regression. The results show that Concern Report and Stop Work significantly affect employee safety improvement with p-values < 0.05. The implementation of both programs successfully reduced workplace accidents and achieved zero accident conditions for eight months in 2024. Therefore, Concern Report and Stop Work are effective tools for improving safety culture in manufacturing industries.
PEMBERDAYAAN KELOMPOK PKK DALAM PENERAPAN SMART BIOPORI IOT UNTUK PENINGKATAN DAYA RESAP AIR DAN KETAHANAN LINGKUNGAN DI BATAM Deosa Putra Caniago; Yopy Mardiansyah; Faradibah Jabnabillah; Samuel Candra; Reva Unieq Faizila; Andrian Syah; Mhd Adi Setiawan Aritonang
MINDA BAHARU Vol 9, No 2 (2025): Minda Baharu
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/jmb.v9i2.8382

Abstract

Permasalahan genangan air kronis dan minimnya infrastruktur resapan di Perumahan Cipta Green View, Kota Batam, menuntut solusi konservasi air yang modern. Kegiatan Pengabdian kepada Masyarakat (PKM) ini bertujuan untuk memberdayakan Kelompok PKK sebagai agen mitigasi lingkungan melalui implementasi Smart Biopori berbasis Internet of Things (IoT) dan edukasi komprehensif tentang pengelolaan lahan hijau. Metode pelaksanaan meliputi sosialisasi, bimbingan teknis instalasi 30 unit Smart Biopori, dan pelatihan alih kelola teknologi monitoring real-time kepada kader lingkungan. Evaluasi keberdayaan mitra menggunakan uji Paired Sample T-Test menunjukkan hasil Sig. (2-tailed) sebesar 0.000, yang mengindikasikan adanya peningkatan pemahaman yang sangat signifikan. Secara kualitatif, program ini berhasil mencapai 100% target keberdayaan pada aspek Manajemen (kemampuan operasional dan alih kelola teknologi) dan aspek Sosial Kemasyarakatan (pembentukan agen perubahan dan kesadaran kolektif). Hasil ini menunjukkan program ini sukses mentransformasi mitra PKK menjadi Kader Lingkungan Mandiri, menjadikannya model solusi cerdas dan terintegrasi untuk ketahanan lingkungan perkotaan.
Amplitude-Based Statistical Filtering Method for Resonance Localization in Low-Cost Acoustic Sensing Systems Feri Iskandar; Ibnu Anugrah; Deosa Putra Caniago; Yopy Mardiansyah; Galang Mario Alpindra
Sinkron : jurnal dan penelitian teknik informatika Vol. 10 No. 3 (2026): Article Research July 2026
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v10i3.16311

Abstract

Acoustic resonance experiments using closed organ pipes are widely used to study the relationship between sound frequency, wavelength, and air-column length. However, low-cost sensor-based systems often produce unstable acoustic signals contaminated by environmental noise, amplitude fluctuations, and sensor-response variability, making resonance identification difficult. This study aims to develop and evaluate an amplitude-based statistical filtering method to improve signal stability and determine the fundamental resonance position more accurately. The proposed method was evaluated using a closed organ pipe experiment integrated with an acoustic sensor and microcontroller-based data acquisition system. Acoustic signals were processed using amplitude-based statistical filtering to extract dominant resonance responses and improve resonance localization. Statistical evaluation was conducted to analyze signal stability and measurement accuracy. The results showed that the filtering process reduced the standard deviation from 9.24 cm in the raw dataset to 6.72 cm in the final resonance candidates, indicating improved resonance localization stability. The experimental resonance length obtained after filtering was 16.12 cm, while the theoretical resonance length was 16.75 cm, resulting in a relative error of 3.76%. These findings demonstrate that the proposed filtering method can improve resonance detection accuracy using a simple, practical, and computationally efficient approach suitable for low-cost educational laboratory systems.
Co-Authors Albertus L. Setyabudhi Alfannisa Annurullah Fajrin Alhamdidi Almandra Almandra Andrian Syah Azwanti, Nurul Caniago, Deosa Putra Chandra Aditya Luhur Wicaksono Delia Meldra Deosa Putra Caniago Dinda Okta Dwiyanti Dinda Okta Dwiyanti Ridwan Gucci Elisa, Erlin Faradibah Jabnabillah Feri Iskandar Firstnanda Rachellia Pramiesty Galang Mario Alpindra Handayani, Vitri Aprilla Hanif Sumardi Hernando, Luki Ibnu Anugrah Indah Sari, Dely Junialdi Nasution Maria Yosefina Meinadia Sekar Kinanti Aswirawan Meldra, Delia Meldra Mhd Adi Setiawan Aritonang Moh. Arafat Wasiru Muhammad Abrar Masril Nurul Ilmi Nurul Ilmi Nurul Ilmi, Nurul Rahmat Fauzi Reant Egie Fahruddini Reva Unieq Faizila Rizki, Sestri Novia Ronny Andri Sadiq Ardo Wibowo Samuel Candra Sari Rahmiati Taufiq Rahman Yan Mahesa Damanik Zefri Azharman