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BIMBINGAN TEKNIS TEKNOLOGI MORTAR DENGAN CAMPURAN FLY ASH UNTUK INDUSTRI PAVING BLOCK DI KELURAHAN KESSILAMPE KOTA KENDARI Romy Suryaningrat Edwin; Minson Simatupang; Fitriah Masud; Masykur Kimsan; Asminar Azis Nugraha; Nasrul Nasrul; Irmawatty Paula Tamburaka
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 5 No. 2 (2021): Jurnal Panrita Abdi - April 2021
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/pa.v5i2.9283

Abstract

Abstract. This community service aimed to guide industrial partners in producing building materials i.e. paving blocks, containing fly ash as cement replacement. This activity was performed in several stages, (1) conducting a partner’s site visit to discern the production process in association with the types of equipment and the type of utilized materials. (2) Making provision for service activities through team briefing and preparation; (3) Producing a K200 paving block mixture design to which the service team would advocate industry partners; (4) Elucidating the benefits of fly ash instead of cement and purveying technical guidance for the manufacture of paving blocks with a mixture of fly ash. The results evinced a partner’s understanding of the performance of fly ash as a cement substitution material that can increase the strength of the paving block rather than using the entire cement. The mix design composition, recommended by the allegiance team, was used as a reference by Mitra Industri in manufacturing K200 paving blocks. Partners have also been able to demonstrate the method of mixing materials to make paving blocks faster than their conventional method, hence the production of paving blocks increases.             Abstrak. Pengabdian masyarakat ini bertujuan untuk membimbing mitra industri yang memproduksi bahan bangunan dalam membuat paving block dengan campuran fly ash sebagai pengganti semen. Pengabdian ini dilakukan dalam beberapa tahapan, (1) melakukan survey lokasi untuk melihat proses produksi terkait peralatan dan material yang digunakan; (2) persiapan tim melakukan kegiatan pengabdian; (3) tim membuat rancangan campuran paving block K200 yang akan direkomendasikan ke mitra industri; (4) tim pengabdian menjelaskan keuntungan dari fly ash sebagai pengganti semen dan melakukan bimbingan teknis untuk pembuatan paving block dengan campuran fly ash. Hasil yang peroleh adalah mitra memahami kinerja fly ash sebagai bahan substitusi semen yang dapat meningkatkan kekuatan paving block melebihi dibandingkan menggunakan semen keseluruhan. Komposisi mix design yang direkomendasikan tim pengabdian dijadikan rujukan oleh mitra industri untuk pembuatan paving block mutu K200. Mitra juga sudah dapat mendemonstrasikan metode pencampuran material untuk membuat paving block yang memiliki durasi waktu lebih cepat sehingga produksi paving block meningkat.
PEMANFAATAN SMART THERMAL CAMERA BERBASIS ARDUINO SEBAGAI UPAYA PENCEGAHAN PENYEBARAN COVID-19 DI UPT TEKNOLOGI INFORMASI DAN KOMUNIKASI UNIVERSITAS HALU OLEO DAN SMK SATRIA KENDARI Wa Ode Siti Nur Alam; Achmad Nur Aliansyah; Feliks Eldad Larobu; Asminar; Nita Zelfia Dinianti Luzi Mulyawati; Indra Galugu
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 5 No. 4 (2021): Jurnal Panrita Abdi - Oktober 2021
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/pa.v5i4.11938

Abstract

During the pandemic, technology is needed to help minimize human contact. Therefore, in this community service program, an android-based smart thermal camera was created. This smart thermal camera had a sensor to read the visitor's body temperature, with a dot-matrix screen and sound system. This smart thermal camera can read the visitor's body temperature without operator assistance and only read the body temperature from the visitor in front of the device. This community service program aims to solve the problems faced by partners using smart thermal cameras based on Arduino to prevent Covid-19 spread. The service program had implemented at The Information Communication Technology Center of Halu Oleo University and the Software Engineering Laboratory of Satria Kendari SMKS from October to November 2020. This activity consists of three main parts:  surveying the location, manufacturing a smart thermal camera based on Arduino, and training the instrument's use and troubleshooting. All participants can use a smart thermal camera properly, 88.9% of participants can troubleshoot tools, and 11.1% of participants cannot. --- Pada masa pandemik saat ini, dibutuhkan teknologi yang dapat membantu dalam meminimalisir kontak antar manusia. Oleh karena itu, pada program pengabdian kepada masyarakat ini dibuat smart thermal camera berbasis android. Smart thermal camera ini menggunakan sensor thermal camera yang dapat membaca suhu tubuh pengunjung, disertai dengan layar dot matriks dan sound system. Smart thermal camera ini dapat membaca suhu tubuh pengunjung tanpa bantuan operator dan hanya dapat membaca suhu tubuh pengunjung yang ada didepan alat. Program pengabdian kepada masyarakat ini bertujuan untuk mengatasi permasalahan yang dihadapi mitra menggunakan pemanfaatan smart thermal camera berbasis arduino untuk mencegah penyebaran covid-19. Program pengabdian ini dilaksanakan di UPT Teknologi Informasi dan Komunikasi UHO dan Laboratorium Rekayasa Perangkat Lunak SMKS Satria Kendari pada bulan Oktober sampai November 2020. Kegiatan ini terdiri dari: membuat smart thermal camera berbasis Arduino dan pelatihan/penyuluhan penggunaan serta troubleshooting alat. Semua peserta penyuluhan dapat menggunakan smart thermal camera dengan baik, 88,9% peserta dapat melakukan troubleshooting alat, dan 11,1% peserta tidak dapat melakukan troubleshooing alat.
Tingkat akurasi Sensor AMG8833 dan Sensor MLX90614 dalam Mengukur Suhu Tubuh Wa Ode Siti Nur Alam; Achmad Nur Aliansyah; Feliks Eldad Larobu; Luzi Mulyawati; Asminar Asminar; Indrayati Galugu
JTEV (Jurnal Teknik Elektro dan Vokasional) Vol 8, No 1 (2022): JTEV (Jurnal Teknik Elektro dan Vokasional)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (582.38 KB) | DOI: 10.24036/jtev.v8i1.114543

Abstract

Sensor AMG8833 dan sensor MLX90614 merupakan sensor yang dapat bekerja dengan memanfaatkan sinar inframerah dalam mendeteksi subuh tubuh. Sensor ini dapat bekerja tanpa adanya kontak sehingga sangat cocok digunakan untuk mengukur suhu tubuh di era pandemic covid-19. Tujuan dari penelitian ini adalah untuk mengetahui tingkat akurasi pembacaan sensor AMG8833 dan sensor MLX 90614 dalam mendeteksi suhu tubuh. Hasil pembacaan dari kedua sensor tersebut dibandingkan dengan hasil pembacaan termogun sebagai suhu tubuh acuan. Pengujian dilakukan pada jarak 3 cm sampai 7 cm di depan sensor. Pengujian dilakukan sebanyak 10 kali perulangan untuk masing masing sensor. Dari hasil pengujian didapatkan bahwa nilai rata-rata error dari pembacaan sensor AMG8833 berkisar diantara 0.145 hingga 0.381 pada rentang jarak 3 sampai 5 cm sedangkan pada jarak 6 cm dan 7 cm rata-rata error adalah 0.963 dan 1.427. Nilai rata-rata error dari pembacaan sensor MLX90614 berkisar diantara 0.073 hingga 0.176 pada rentang jarak 3 sampai 5 cm sedangkan pada jarak 6 cm dan 7 cm rata-rata error adalah 0.751 dan 1.139. hasil ini menandakan bahwa sensor MLX90614 memiliki tingkat akurasi pembacaan yang baik karena memiliki hasil pembacaan yang mendekati dengan termogun untuk jarak maksimal 5 cm didepan sensor.
Rancang Bangun Sistem Informasi Lembaga Penelitian dan Pengabdian Masyarakat Universitas Halu Oleo Muhammad Nadzirin Anshari Nur; Subardin Subardin; Indrayati Galulu; Asminar Asminar
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol 6, No 4 (2021): Jurnal Elektroda Vol 6 No 4
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jfe.v6i4.5119

Abstract

Perguruan tinggi berkewajiban menyelenggarakan penelitian dan pengabdian masyarakat disamping melaksanakan pendidikan sebagaimana diamanahkan oleh undang-undang, tata kelola peneletian dan pengabdian masyarakat pada Universitas Halu Oleo dikelola oleh LPPM yaitu Lembaga Penelitian dan Pengabdian Masyarakat dan seharusnya LPPM memiliki sebuah sistem informasi sebagai wadah penayampian informasi kepada sivitas Universitas Halu Oleo, saat ini sistem informasi LPPM sudah ada namun belum pernah terupdate sejak LPPM sebelumnya sehingga perlu melakukan rancang bangun website sistem informasi yang baru, Tujuan penelitian ini adalah untuk merancang dan membangun sebuah sistem informasi yang memuat seluruh aspek kelembagaan pada LPPM Universitas Halu Oleo termasuk informasi-informasi penelitian dan pengabdin terbaru, pengumuman penerimaan proposal internal maupun eksternal, informasi profil LPPM dan beberapa informasi lainnya yang membantu sivitas dalam pelaksanaan penelitian dan pengabdian masyarakat. Metode yang digunakan dalam penelitian ini yaitu metode perancangan sistem informasi dengan model waterfall dimana dimulai dari metode analisis, desain, implementasi, pengujian, pengembagan dan maintenance, Luaran yang dihasilkan dari penelitian ini adalah produk sistem informasi yang bisa diakses secara online melalui laman http://lppm.uho.ac.id.
Systematic Literature Review of Expert System Mohamad Ilyas Abas; Deny Wiria Nugraha; Asminar Asminar; Isminarti Isminarti
TIN: Terapan Informatika Nusantara Vol 3 No 12 (2023): May 2023
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/tin.v3i12.4136

Abstract

Current developments in technological science have had a major impact on our daily lives, one of the impacts is in the health and agricultural sectors which implement automated systems. This research aims to review current topics regarding expert systems and the use of some of the best algorithms used. The literature review was created by systematically reviewing 1000 research articles from the last 5 years (from 2016 to 2020) by collecting through related sources including conference proceedings and journals. The method used in this research is Systematic Literature Review (SLR). SLR is used to identify, study and interpret all relevant specific research. The results of this research reveal several algorithms that are frequently used and have good accuracy values ​​as well as trending topics in the field of expert systems.
Perencanaan Pembangkit Listrik Tenaga Hybrid (PLTB dan PLTS) Menggunakan Aplikasi HOMER (Studi Kasus di Gunung Ahuawali) Muhammad Fiqran Rusydi; Mansur; Abdul Djohar; Mustarum Musaruddin; Agustinus Lolok; Ahmad Nur Aliansyah; Indrayati Galugu; Asminar
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol. 9 No. 2 (2024): Jurnal Fokus Elektroda Vol 9 No 2 2024
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Energi angin dan matahari adalah dua sumber energi terbarukan yang tengah dikembangkan diindonesia untuk mengatasi kebutuhan listrik yang terusm eningkat. Namun, sumber energi fosil teerbatas. Sistem hybrid, menjadia lternatif yang tepat dengan memanfaatkan kedua sumber energi tersebut.P enelitian ini bertujuan merancang system pembangkit hybrid (angin danm atahari) menggunakan perangkat lunak HOMER. Hasil penelitian menunjukkanb ahwa konfigurasi sistem Pembangkit Listrik Tenaga Hybrid (PLTB dan PLTS) dengan hasil produksi listrik sebesar 164,707 KWh/tahun dengan 7 buah turbi angin, panel surya 240 unit, 84 baterai dan 30 kW converter. Dengan total NetP resent Cost (NPC) sebesar Rp.10.758.260.000, dengan Cost of Energy (COE)s ebesar Rp.6.866 dan Operating Cost sebesar Rp.752.416.000.
Rancang Bangun Pembangkit Listrik Termoelektrik dengan Menggunakan Limbah Tongkol Jagung Aldiansyah, Satria; Djohar, Abdul; ., Asminar
Jurnal Sains dan Teknologi (JSIT) Vol. 6 No. 2 (2026): Mei - Agustus
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v6i2.4644

Abstract

The large amount of corn cob waste that has not been optimally utilized is one of the challenges in the agricultural sector, although this waste has the potential to become an economically valuable and environmentally friendly biomass energy source. The increasing demand for electricity, which is not matched by fossil fuel availability, is also encouraging the development of sustainable alternative energy sources, especially those derived from local agricultural waste. Therefore, this study aims to design and analyze the performance of a thermoelectric power plant utilizing corn cob waste to meet daily electricity needs and evaluate its potential as a small-scale alternative energy source. The methods used include prototype design, system assembly using Peltier modules arranged in series-parallel, a biomass combustion system, a water-circulation cooling system, and testing based on voltage, current, power, and temperature difference (ΔT) parameters. Test data were collected periodically during combustion to determine the system output characteristics. The results show that the use of 9 Peltier modules with 2 kg of corn cobs as fuel produces a maximum power of 8.192 W with a current of 0.64 A under the highest temperature difference conditions. The prototype test results were then used as the basis for a simulation to estimate system development, where an output energy of 1040 Wh requires 16 combinations or 144 Peltier units operating for 8 hours using approximately 16 kilograms of corn cobs as fuel.
Smart biogas: An independent energy system based on organic waste integrated with IoT Asminar; Abdul Djohar; Syahran Rifaldi; Rifki; Muhammad Adam Raswadi; Arya Sadewa
Applied Environmental Science Vol. 3 No. 2: (January) 2026
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/aes.v3i2.2026.2375

Abstract

Background: Indonesia faces substantial challenges in waste management, as most organic waste remains untreated. A similar situation occurs in Kendari City, which generates approximately 253 tons of waste per day, the majority of which consists of organic materials. This condition reflects the untapped potential of renewable energy derived from organic waste, thereby necessitating the development of an effective system to address these issues comprehensively. Methods: This study employed a descriptive research method with a case study approach. The data analyzed encompassed the volume and composition of organic waste in Kendari City. The findings served as the foundation for designing a Smart Biogas system integrated with the Internet of Things (IoT). The system incorporates sensors to monitor temperature, pressure, and methane concentration in real time and is connected to an application that enables remote monitoring and control. Findings: The study revealed that the potential biogas production from organic waste in Kendari City could reach approximately 5,650 m³ per day. This volume demonstrates significant potential to meet a portion of the local energy demand. By adopting a communal-based system design, the utilization of biogas can be optimized, particularly to support energy needs at the sub-district level. Conclusion: The results indicate that the implementation of the Smart Biogas system can not only reduce the volume of organic waste but also provide a sustainable energy independence solution. Novelty/Originality of this article: The novelty of this research lies in the development of a Smart Biogas system integrated with IoT technology, specifically designed for communal-scale applications. The system enables real-time monitoring of the fermentation process through temperature, pressure, and methane sensors, with remote access facilitated by an integrated application. This approach ensures that organic waste is not only effectively managed but also converted into renewable energy, thereby supporting local energy independence.
Analysis of Electricity Consumption Patterns a Hybrid Algorithm K-Means Clustering and Support Vector Machine Fika Saputri; Asminar Asminar; Tambi Tambi; Mustarum Musaruddin; Muhammad Nadzirin Anshari Nur; Adhi Setiawan Samsul
Bulletin of Informatics and Data Science Vol 5, No 1 (2026): May 2026
Publisher : PDSI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61944/bids.v5i1.155

Abstract

Fluctuations in electricity consumption make it difficult to manage and control energy use efficiently. Therefore, an analytical method capable of accurately identifying electricity consumption patterns is needed. Previous studies have generally applied clustering and classification separately and relied mainly on historical data, limiting their ability to capture dynamic electricity consumption patterns and classify new observations. This study aims to analyze electricity consumption patterns using a machine learning approach based on K-Means Clustering and Support Vector Machine (SVM). The data used consist of historical data and 24-hour real-time data obtained from PT PLN (Persero) UP3 Kendari. The research stages include data preprocessing, feature engineering, standardization using Z-scores, the clustering process using K-Means, and classification using SVM in a hybrid approach. The novelty of this study lies in using K-Means cluster labels as target classes for SVM while combining historical and real-time data. The results show the formation of four clusters: Cluster 0 representing stable moderate consumption, Cluster 1 representing high consumption, Cluster 2 representing low consumption, and Cluster 3 representing fluctuating consumption. Evaluation yielded a Silhouette Score of 0.5095 and a Davies-Bouldin Index of 0.6868, indicating fairly good cluster quality. The SVM model achieved an accuracy of 99.23% with high precision, recall, and F1-score values. These results demonstrate that the hybrid approach is effective in improving analysis performance and producing a reliable model for classifying new electricity consumption data
a Design of an IoT-Based Control and Monitoring System for a Biogas Power Generation Plant Using POME Waste from Palm Oil Mills: a Design of an IoT-Based Control and Monitoring System for a Biogas Power Generation Plant Using POME Waste from Palm Oil Mills Asminar Asminar; Rifki Rifki; Akhyar Muchtar; Abdul Djohar; Agustinus Lolok; Mustarum Musaruddin; Hasmina Tari Mokui; Adhi Setiawan Samsul
Journal of Renewable Energy and Smart Device Vol. 4 No. 1 August 2026
Publisher : PT. Global Research Collaboration

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66314/joresd.v4i1.1054

Abstract

Palm Oil Mill Effluent (POME) contains a high organic load that can be converted into biogas through anaerobic digestion and subsequently utilized for electricity generation. However, maintaining stable digester conditions requires an integrated monitoring and control system capable of observing critical operating parameters. This study presents a conceptual design and theoretical assessment of an Internet of Things (IoT)-based monitoring and control system for a POME-based biogas power plant. The proposed architecture integrates an anaerobic digester, gas holder, biogas generator, ESP32 microcontroller, temperature, pressure, methane concentration, and gas flow meter, cloud communication through MQTT/HTTP protocols, and web- and mobile-based dashboards. A threshold-based control strategy is proposed to regulate gas pressure and digester temperature. This study did not include physical system implementation or experimental field testing. Based on the adopted design assumptions, processing 300 metric tons of fresh fruit bunches generates approximately 240 m³ of POME and 6,000 m³ of biogas. Using a methane fraction of 60%, a methane calorific value of 35.7 MJ/m³, and a fixed generator efficiency of 35%, the theoretical electrical energy output is estimated at 12,495 kWh per production cycle. The proposed design provides an integrative framework for future prototype development and experimental validation of IoT-based monitoring and control in POME biogas power plants.