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Implementasi Sistem Pemantauan Kelayakan Kapal Pada Proses Pengujian Kapal Menggunakan Teknologi Internet of Things Pristovani, Dimas; Abu Jami’in, Muhammad; Singgih Setiyoko, Annas; Toto Wibowo, Alvalo; Leonard, Rikky
The Indonesian Journal of Computer Science Vol. 13 No. 6 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i6.4512

Abstract

A new ship must doing a sea trial inspection before handover to the owner based on International Maritime Organization regulation under Resolution MSC.137. Currently, these inspections are conducted manually. So, the Ship Qualification and Clasification System using Internet of Things (IoT) technology are highly needed. This system made up of hardware connected to an Android application and a web-based application that monitors real-time data on position, speed, inclination, wind speed, and time. Data logger are performed simultaneously on the hardware, Android app, and web-based app, creating redundancy in data logging. In practice, The results of these trials ensure that the ship's technical specifications comply with agreed standards, as well as strengthening the confidence of all parties involved in the testing project. With this success, an IoT-based monitoring and analysis system can be a reliable solution for operational needs and evaluating ship performance
Pengaruh Variasi Temperatur dan Waktu Tahan Post Weld Heat Treatment pada Kekerasan Material A335 Grade P92 untuk Aplikasi Pembangkit Listrik Wahyu Restu, Eriek; Wahyudi, M Thariq; Karim, M; Anggara, Dika; Farrasy, Abiyyuda Putra; Luluk Kusminah, Imah; Toto Wibowo, Alvalo
Jurnal Teknologi Maritim Vol. 8 No. 1 (2025): Jurnal Teknologi Maritim
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/jtm.v8i1.50

Abstract

A335 Grade P92 steel is a martensitic high temperature which widely-applicated on power plan component with high pressure, therefor it required high tightness. Martensitic properties of material caused the high hardness and easily crack. So, Post Weld Heat Treatment is mandatory for A335 Grade P92 welding. This research analyzed the effect of temperature (705°C, 740°C, and 775°C) and holding time (60 and 120 minutes) of post weld heat treatment to hardness. Hardness test result was decreasing with the increasing of temperature and holding time of post weld heat treatment. Weld metal was obtained the highest hardness on specimen with 705°C of temperature and 60 minutes of holding time of post weld heat treatment with 302,85 kgf/mm2, otherwise the lowest hardness was 285,13 kgf/mm2 on 775°C of temperature and 120 minutes of holding time of post weld heat treatment. Microstructure result was obtained of ferrite, pearlite, and martensite on increasing of temperature and holding time of post weld heat treatment which shown the wider of grain.
Penerapan Program Teknologi Akuaponik Untuk Penyediaan Pangan Yang Berkelanjutan Sebagai Upaya Percepatan Penurunan Stunting Di Desa Sambongdukuh Kabupaten Jombang Jawa Timur Leonard, Rikky; Sriwijayasih, Imaniah; Toto Wibowo, Alvalo; Khilyatul Auliya, Prativi; Resmi, Fitroh; Fikry, Izzul
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 1 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN)
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v5i1.2754

Abstract

Salah satu upaya penyediaan pangan berkelanjutan sebagai tindakan percepatan penurunan stunting di Desa Sambongdukuh adalah memberdayakan masyarakat dalam mengoptimalkan potensi daerahnya. Tujuan pada pengabdian masyarakat ini adalah untuk mengetahui penerapan program teknologi akuaponik sebagai solusi pendukung penyediaan pangan untuk percepatan penurunan stunting serta mengembangkan kegiatan ekonomi produktif sebagai bentuk pemberdayaan masyarakat. Metode pelaksanaan dilakukan dengan 4 tahapan, yaitu tahap persiapan dan perencanaan kegiatan pengabdian masyarakat, pelaksanaan kegiatan pengabdian masyarakat, demonstrasi kegiatan pengabdian masyarakat, monitoring dan evaluasi kegiatan pengabdian masyarakat. Target luaran yang diharapkan berdasarkan analisis hasil penyebaran kuesioner yang dilaksanakan terhadap 40 responden. Hasil kegiatan pengabdian masyarakat penerapan program teknologi akuaponik di Desa Sambongdukuh mendapat antusiaisme masyarakat yang positif. Hal ini ditunjukkan dengan hasil 53% untuk kegiatan persiapan dan perencanaan kegiatan pengabdian masyarakat, 75%  untuk pelaksanaan kegiatan pengabdian masyarakat, 55% untuk demonstrasi pengabdian masyarakat dan 63% untuk monitoring dan evaluasi kegiatan pengabdian masyarakat. Peserta merasakan manfaat dari segi estetika dan ekonomi kegiatan ini memotivasi warga lainnya yang mulai tertarik untuk ikut serta menerapkan teknologi akuaponik di pekarangan rumah mereka sendiri. Hal ini berdampak positif terhadap penyediaan pangan yang berkelanjutan dan diharapkan mampu mempercepat penurunan stunting di Desa Sambongdukuh Jombang Jawa timur.
LIMBAH CANGKANG KERANG HIJAU Ekonomi Sirkular di Pesisir: Studi Kasus Pemanfaatan Cangkang Kerang Hijau untuk Pakan Udang di Gresik: Ekonomi Sirkular di Pesisir: Studi Kasus Pemanfaatan Cangkang Kerang Hijau untuk Pakan Udang di Gresik Leonard, Rikky; Dini Utami, Septaviola; Khilyatul Aulia, Prativi; Toto Wibowo, Alvalo; Sriwijayasih, Imaniah
KOMUNITA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 4 No 4 (2025): November
Publisher : PELITA NUSA TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60004/komunita.v4i4.268

Abstract

The problem of coastal waste management in Gresik, especially green mussel shells, is a serious challenge that has an impact on the environment and the community's economy. This community service program aims to improve the circular economy in coastal areas, especially for residents of Banyuurip Village, Ujungpangkah, in the utilization of green mussel shells through Eco-entrepreneurship training based on the 3R principle. The community service program was carried out using a Participatory Action Research approach. The results of the community service program showed a significant increase of 65% in the behavior of recycling green mussel shell waste into shrimp feed, as well as increasing awareness in protecting the environment. This activity can create circular economic opportunities in coastal areas. This indicates that the community service program was successfully implemented through an environmentally based circular economy approach.
Pengembangan Sistem Keselamatan Dan Peringatan Bahaya Dini Pada Aplikasi Sistem Navigasi Dan Pengujian Manuver Kapal Untuk Kapal Nelayan Tradisional Di Brondong Lamongan Jawa Timur Berbasis Internet Of Things Herijono, Boedi; Leonard, Rikky; Toto Wibowo, Alvalo; Pristovani Riananda, Dimas; Ratna Kusuma Mayang Sari, Dyah
KOMUNITA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 4 No 4 (2025): November
Publisher : PELITA NUSA TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60004/komunita.v4i4.290

Abstract

Safety Issues and Early Warning for Traditional Fishermen While Sailing in Brondong Lamongan, East Java. The purpose of the Community Service activity is that with the Simple tool, it is hoped that traditional fishermen in Brondong Lamongan, East Java will be guaranteed safety while sailing. The method applied is a participatory approach, which actively involves the community in every stage of the activity, from planning, implementation, to evaluation. Active participation from the community is very important to ensure the success and sustainability of the program, because the community has in-depth local knowledge about the potential and problems that exist in their area. The location of this Community Service is in the Brondong Lamongan Fishermen's Association, East Java. Based on the results of the Community Service, it can implement the Simple Tool as a Safety System and Early Warning for Traditional Fishermen While Sailing in Brondong Lamongan, East Java, so that it can be used to increase fishing productivity and safety for traditional fishermen which is a problem for these traditional fishermen.