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All Journal STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering J-CEKI
Desi Rinnawati Sinaga
Universitas Negeri Manado
Humanities Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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KARAKTERISTIK FISIK DAN LISTRIK BELIMBING WULUH UNTUK PEMBUATAN AKI ORGANIK Moh Fikri Pomalingo; Elfransius Sinaga; Amos Axel Sinaga; Paulus Pius Pora Dosy; Bastian Rikardo Parhusip; Julfran Devit Damanik; Djami Olii; Desi Rinnawati Sinaga
Steam Engineering Vol. 4 No. 1 (2022): STEAM Engineering, Vol. 4, No. 1, September 2022
Publisher : Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (905.546 KB) | DOI: 10.37304/jptm.v4i1.5630

Abstract

The development of science and technology has made significant advances in the search for alternative energies to replace oil and coal. One of the widely studied alternative energies is electrical energy obtained from plants. The use of electrical energy is due to the increasing population. This increase results in people using electricity to fulfill their activities and lifestyle. An alternative energy from plants is star fruit. Starfruit is acidic and contains many good electrolytes for electricity. The results of the research related to the belief in Wuluh were carried out by researchers. Based on a 2: 1 ratio (earth and star fruit) it can produce 1V of electricity. When this concept is produced in large quantities and connected in series, it can produce greater electrical power. The research was excellent and laid the foundation for the team to develop various concepts. The plan is to manufacture the battery on a large scale so that it can later be used in areas without a power supply. This battery is also said to help illuminate public roads as an alternative to replacing solar panels.
Keanekaragaman Jenis Tumbuan Paku (Pteridophyta) Di Hutan Lembah Pinus Sebagai Buku Saku Bergambar Kelas X SMA Desi Rinnawati Sinaga; Meity N. Tanor; Danny Ch. Posumah
J-CEKI : Jurnal Cendekia Ilmiah Vol. 3 No. 5: Agustus 2024
Publisher : CV. ULIL ALBAB CORP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/jceki.v3i5.4809

Abstract

Buku saku sebagai sumber bahan belajar yang membantu dan menyederhanakan agar mampu memahami dengan baik. Tujuan penelitian ini adalah untuk mengetahui jenis - jenis tumbuhan paku (Pteridophyta) dan mengetahui kelayakan pada buku saku. Penelitian ini merupakan penelitian model Borg and Gall (Persiapan, Perencanaan, Pengembangan, Uji coba dan Revisian) yang merupakan penelitian dan pengembangan (R&D). Hasil penelitian yang didapatkan jenis tumbuhan paku (Pteridophyta) di hutan lembah pinus terdapat : Tumbuhan Paku Pyrrosia eleagnifolia, Tumbuhan Paku Suplir (Adiantum raddianum), Tumbuhan Paku Sarang Burung (Asplenium nidus), Tumbuhan Paku (Christella parasitica), Tumbuhan Pakis Pedang (Nephrolepis biserrata), Tumbuhan Paku (Anisocampium niponicum), Tumbuhan Paku Diplazium laxifrons, Tumbuhan Paku (Microlepia speluncae), Tumbuhan Paku (Davallia trichomanoides), Tumbuhan Paku Kinca (Nephrolepis exaltata), Tumbuhan Pakis Kutil (Phymatosorus scolopendria), Tumbuhan Pakis kaki kelinci (Davallia denticulate), Tumbuhan Paku Sepat (Neprolepis cordifolia), Tumbuhan Paku (Microsorum punctatum). Hasil kelayakan pada buku saku dengan kategori “ Sangat Layak".
Co-Authors Amos Axel Sinaga Bastian Rikardo Parhusip Danny Ch. Posumah Djami Olii Elfransius Sinaga Julfran Devit Damanik Meity N. Tanor Meity Nelltje Tanor Paulus Pius Pora Dosy Pomalingo, Moh Fikri