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All Journal Prosiding Seminar Nasional Inovasi Teknologi Terapan Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Ardiansyah , Reza
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Mechanical Engineering

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RANCANGAN MESIN PENGHANCUR KOHE KAMBING UNTUK PUPUK reza; Ardiansyah , Reza; Qibran, Muhammad Agil
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 4 (2024): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Goat feces (kohe) can be used as kohe fertilizer. However, goat kohe that is directly sown takes a long time to decompose due to its hard texture. From these problems, the design of an efficient chopping machine kohe is made which can accelerate the fermentation process in goat kohe. The design method used refers to the VDI 2222 method, namely analysis, planning, conceptualizing and designing. The results of the machine design have dimensions of 1000x500x565 mm, a capacity of 250 kg / hour, using a 7.5 HP fuel motor, a pulley and belt transmission system with a speed of 3000 RPM input and an output RPM of 903 RPM. This machine is equipped with 28 removable crushing knives and a filter that functions to smooth the goat's kohe. The analysis and simulation results show that the designed shaft has a theoretical stress stress of 2,204 N/mm2 and a simulation of 2,280 N/mm2. Displacement analysis on the shaft theoretically amounted to 0.00645 mm and simulation amounted to 0.00514 mm. The strain analysis on the shaft was theoretically 0.00001075 mm and simulation was 0.0000927 mm and the stress on the crushing blade was theoretically 0.446 N/mm2 and simulation was 0.776 N/mm2. Strain analysis of the crushing blade theoretically amounted to 2.124 mm and simulation amounted to 2.242 mm. The displacement analysis of the crushing blade theoretically amounted to 0.000219 mm and the simulation amounted to 0.000213 mm which indicates that the designed crushing blade is safe.
Medicinal plant diversity and conservation status assessment in Sapen forest, East Java Ainiyah, Roisatul; Nugroho , Endik Deni; Ardiansyah , Reza; Fathurrohman, Amang; Ahwan , Zainul; Dayat , Muhammad; Wibisono, Mulyono
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 11 No. 01 (2026): May
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v11i01.2400

Abstract

Sapen Forest harbors high plant diversity, yet information on its medicinal plant resources and their conservation status has remained limited. This study aims to document medicinal plant diversity and evaluate its conservation status in Sapen Forest, East Java, Indonesia. Field surveys were conducted in 2021 within a 5-ha area using 36 systematically established sampling plots. Medicinal plant species were inventoried, vegetation structure was analyzed using the Importance Value Index (IVI), and conservation status was evaluated according to the International Union for Conservation of Nature (IUCN) Red List. Species were identified to the species level, and their traditional medicinal uses were compiled from published literature. A total of 68 medicinal plant species belonging to 38 families were recorded. Ageratina riparia exhibited the highest IVI (23.20), followed by Alternanthera sessilis (20.82) and Synedrella nodiflora (14.68). The Shannon–Wiener diversity index (H') was 3.05, indicating high medicinal plant diversity. Most species were classified as Not Evaluated (NE), while five species were categorized as Least Concern (LC) and one cultivated species, Brugmansia suaveolens, as Extinct in the Wild (EW). These findings demonstrate that Sapen Forest is an important reservoir of medicinal plant diversity and provides baseline information to support biodiversity conservation and the sustainable management of medicinal plant resources.
Co-Authors Ahwan , Zainul Ainiyah, Roisatul Amang Fathurrohman Dayat , Muhammad Nugroho , Endik Deni Qibran, Muhammad Agil reza Wibisono, Mulyono