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All Journal JBIO: jurnal biosains (the journal of biosciences) Jurnal Pelita Pendidikan Jurnal Peternakan Indonesia JOURNAL OF HEALTHCARE TECHNOLOGY AND MEDICINE Journal of Tropical Biodiversity and Biotechnology Jurnal SOLMA Edukasi Islami: Jurnal Pendidikan Islam Martabe : Jurnal Pengabdian Kepada Masyarakat FORUM PAEDAGOGIK Darul Ilmi: Jurnal Ilmu Kependidikan dan Keislaman Dakwah: Jurnal Kajian Dakwah dan Kemasyarakatan Unri Conference Series: Community Engagement UNES Journal of Swara Justisia Journal of Rural and Urban Community Empowerment Jurnal Pendidikan, Sains dan Teknologi Asian Journal Science and Engineering Biocaster : Jurnal Kajian Biologi BIO-CONS: Jurnal Biologi dan Konservasi Jurnal Riset Ilmiah BIOGENIC: Jurnal Ilmiah Biologi Jurnal Polimesin Jurnal Kemitraan Masyarakat Journal of Evrimata: Engineering and Physics Evrimata: Journal of Mechanical Engineering Jurnal Pendidikan MIPA
Lazuardi Lazuardi
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Design and Manufacture of Floating Hydroponic Planting Media Based on 3D Printing Technology LAZUARDI, LAZUARDI; Zuhrohfi Immaroh, Nundiah; Hadi Susilo, Sugeng
Journal of Evrímata: Engineering and Physics Vol. 03 No. 02, 2025
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.82

Abstract

This study examines the design and fabrication of innovative floating growing media based on 3D printing technology to support hydroponic systems in limited land and shallow waters. The design process was carried out using CAD software, then printed using a 3D printer with environmentally friendly PLA material. The four main components of the growing media produced were the Nutrition Tube, Nutrient Pipe, Buoy, and Water Grid, printed using constant parameters: a speed of 80 mm/min, a layer thickness of 0.2 mm, and a wall thickness of 0.8 mm. These parameters ensure precise dimensions and a sturdy structure. Tests showed that the growing media had stable buoyancy with a carrying capacity of up to 250 grams, buoyancy stability analysis used the CFD simulation method to determine the pressure distribution. The highest pressure was found in the Buoy area (12–15.89 Pa), while the bottom side of the float showed negative pressure (-4.9–0 Pa), indicating good hydrodynamic balance. These results indicate that 3D printing technology is effectively used in the development of lightweight, efficient, and customizable precision growing media, thus contributing to a sustainable floating farming system.
Keanekaragaman dan Kelimpahan Serangga di Perkebunan Teh PTPN IV Tobasari Kecamatan Pamatang Sidamanik Kabupaten Simalungun Napitu, Angel Tessalonika; Lubis, Khairiza; Lazuardi, Lazuardi
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1022

Abstract

This study aims to analyze the diversity and structure of insect communities in tea plants (Camellia sinensis) as the basis for sustainable and environmentally friendly plantation management. The research was conducted at the PTPN IV Tobasari Tea Plantation using an observation method with the installation of yellow sticky traps at five observation points. The results of the study showed that 20 species of insects were found with a total of 402 individuals, with the most species, namely Bactrocera dorsalis. A diversity index value (H') of 2.52 indicates a moderate level of diversity, a dominance index (C) of 0.14 indicates the absence of dominating species, and an evenness index (E) of 0.84 indicates a relatively even distribution of individuals between species. Measured abiotic factors include an average temperature of 29.75°C, light intensity of 3921.17 lux, and wind speed of 6.48 m/s. Ecologically, the combination of H', C, and E values shows that the ecosystem of the Tobasari Tea Plantation is in a fairly stable condition with low to moderate levels of ecological stress, thus supporting the sustainability of the insect community.
Co-Authors Abdul Hakim Daulae Aghsyannisa Aghsyannisa Agil Ario Wibawa Akbar Akbar Akhlis Rizza , Muhammad Akhlis Rizza, Muhammad Alfarisy, M. Phyto Amdayani, Susilawati Anggreani, Defvi Anggreani1, Defvi Armadiyan Armadiyan Ashar Hasairin Banjarnahor, Ida Hartati Batubara, Ummi Mardhiah Cahyo, bint Cahyo, Bintang Dwi Dibah, Jihan Para Edi Purwanto Edwardi Edwardi Eka Rizki A Nasution Ekklesia, Eprilia Eko Prasetya, Eko F. Madarisa Fairuz, Tariza Fathimah Nurfithri Hashifah Fauziyah Harahap Feliatra Gustina, Julia Hadi Susilo, Sugeng Hanna, Shantela Juanti, Devika Ramadhani Kiky Rizky Lubis, Khairiza Mahesa Rizky Saputra Mariya, Haniam Martina Asiati Napitupulu Maryono , Maryono Maryono Maryono Maryono Maryono Mira Rangkuty, Sailana MUHAMMAD ALI Muhammad Yusuf Pulungan Nadhif, Reyhan Ivan Napitu, Angel Tessalonika Nathania, Vanda Golda Nugroho Nugroho Nur ‘Azah Nursyirwani, Nursyirwani Nurul Karisma Padang, Endang Karina Puji Prastowo, Puji Ratna Anjaning Kusuma Marpaung, Dwi Rifka Hilda Sinaga Rizky, Nadia Rulli Nasrullah Said . Iskandar Sapitri, Siti Sihabudin Noor Silvia Adriani Sinaga, Elfia Lasmaida Siregar, Shopiah Dhuha Siti Jamilah Siti Munawaroh Suci Rahmawati, Suci Sugeng Hadi Susilo Syakura, Furcony Putri Syamsul Mu’arif Togatorop, Afrida Deyuwi Fortuna Ulandia, Sinta Bella Utami, Lestari Dian Widia Ningsih, Widia Widyanti, Amelia Nur Wina Dyah Puspita Sari, Wina Dyah Wirdah Aulia Siregar Wulandari Wulandari Wulansari, Wulandari Yuanita Rachmawati Yulia Eka Putri, Yulia Eka Yusuf, Yusnaeni Zevira, Bella Permata Zuhrohfi Immaroh, Nundiah