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All Journal JMPM (Jurnal Material dan Proses Manufaktur) Desimal: Jurnal Matematika Jurnal SOLMA JURTEKSI Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal JIKA: Jurnal Ilmu Keuangan dan Perbankan Jurnal Matematika UNAND SIGMA TEKNIKA Jurnal Siteba Jurnal Sintak STATISTIKA Journal of Mathematics, Computation and Statistics (JMATHCOS) Indonesian Journal of Jamu Integra: Journal of Integrated Mathematics and Computer Science
Handayani, Vitri Aprilla
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Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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FUZZY LOGIC UNTUK MENENTUKAN PEMBELIAN GITAR LISTRIK MENGGUNAKAN METODE SUGENO Handayani, Vitri Aprilla
JURNAL SITEBA Vol. 1 No. 1 (2022): Jurnal Sistem Informasi ITEBA
Publisher : LPPM-ITEBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (285.274 KB) | DOI: 10.62375/siteba.v1i1.7

Abstract

Tak dapat dipungkiri bahwa gitar ikut berperan penting dalam berkembangnya musik di penjuru dunia. Akan tetapi, tak jarang orang awam yang tidak tahu bagaimana memilih gitar yang berkualitas dan sesuai dengan yang dikehendaki. Biasanya orang yang baru memulai keinginannya untuk memainkan instrument gitar cendrung salah dalam memilih. Terkadang mereka hanya tertarik dengan desain tanpa tahu karakteristik instrument tersebut. Misalnya dari segi bahan baku, proses pembuatan, karakter suara yang dihasilkan, dan komponen tambahan yang ada, serta apakah nantinya bisa sesuai jenis musik yang diinginkan. Berdasarkan hal yang ada maka penulis berinisiatif melakukan penelitian yang nantinya dapat mempermudah seseorang yang baru akan mengenal gitar dapat memilih gitar yang tepat. Banyak cara yang dapat digunakan dalam menyelesaikan masalah pemilihan gitar, salah satunya adalah dengan menggunakan metode Sugeno dalam Fuzzy Logic, maka penulis tertarik untuk mengambil judul penelitian yaitu: “FUZZY LOGIC MENENTUKAN PEMILIHAN GITAR ELEKTRIK MENGGUNAKAN METODE SUGENO.”
Penerapan Cooler Box Bertenaga Panel Surya untuk Meningkatkan Kualitas Hasil Tangkapan Nelayan di Daerah Kepulauan Wibowo, Sadiq Ardo; Handayani, Vitri Aprilla; Hernando, Luki; Devikaduri, Laras; Tuto Bakang, Clarita; Eka Candra, Joni
Jurnal SOLMA Vol. 14 No. 3 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v14i3.19529

Abstract

Background: Limited fish storage facilities are a major factor contributing to the decline in fish quality among fishermen in island areas, which ultimately reduces market value. This community service activity aimed to implement a solar-powered cooler box as an efficient and environmentally friendly storage solution for fishermen in remote coastal regions. Method: The method included a needs assessment, design and installation of a 40-liter cooling system with a 100 WP solar panel, and training on operation and maintenance for fishermen in the Belakang Padang Islands. Results: The results showed that the storage temperature could be maintained between 2–4°C for 8–10 hours daily without relying on conventional electricity. The use of this equipment reduced the spoilage rate of fish from an average of 28% to 10%, and increased selling prices by an average of 18%. Conclusion: This program demonstrates that renewable energy technologies can contribute to improving the quality of fish catches and the economic well-being of fishermen in a sustainable manner.
Analysis of Coir Fiber/Wood Paint as Composite Anti-Weathering Coatings on Traditional Fishing Boats Sunarsono, Hery; Handayani, Vitri Aprilla; Irianto, Ardhiya Syifa; Rahmad, Rahmad; Azzahra, Nabila
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.19447

Abstract

The low resistance of wood as a frame material for traditional fishing boats against splashing sea water, humidity, and high-temperature fluctuations was studied in this study by adding coconut coir fiber to wood paint, where this mixture will become an anti-weathering composite material. To make compatibility between the fibers from coir which are water-absorbing (hydrophilic) and alkyd paints which are water-repellent (hydrophobic), the author gives special treatment to the coco fibers through an acetone pre-treatment process and hot alkali (hot alkali treatment) by soaking fiber in 10% high-temperature sodium hydroxide NaOH solution. Soaking in this solution is able to modify fibers that have a rough surface and reduce hydrogen bonding thereby improving the interfacial bond between the fiber and the filler in the composite. The results obtained were that the addition of fiber with a weight fraction of 3.40% to the alkyd paint matrix made the composite the most optimal anti-weathering coating.
Co-Authors Alhamidi, Alhamidi Anggraeni, Andini Setyo Anjani, Syarli Dita Arafi, Adamsyam Arrafi, Adamsyam Auwalia, Farda Azhari, Fiqri Ardi Azzahra, Nabila Betricia , Jesicca candra, joni eka Devikaduri, Laras Eko Sulistyono Eko Sulistyono Sulistyono Farit Mochamad Afendi Harahap, Diana Sari Hazimah, Hazimah Hernando, Luki Irianto, Ardhiya Syifa Islamiati, Dian Jonathan, Steven Lestari, Windi Lilies Handayani Lunardi, Louis Majiid, Arsyil Mardiansyah, Yopy Muhammad Agus Muljanto Mulyono Mulyono Mustofa Usman Nahrul Hayati Nur Asikin Okti, Herpina Putri, Tia Aura Rahayu , Sri Rahmad Rahmad Rahmiati, Sari Sabarinsyah, Sabarinsyah Sabrina, Nadia Sadiq Ardo Wibowo, Sadiq Ardo Sari Rahmiati Sembiring, Rinawati Sihombing, Urianto Siti Laelatul Chasanah, Siti Laelatul Sunarsono, Hery Taufiq Rahman Tuto Bakang, Clarita Utama, Rifki Chandra Utami, Arli Magfirah Utami, Bernadhita Herindri Samodera Utami, Bulan Purnama Varischa, Bintang Wasiru, Moh. Arafat Widiarti Widya Reza Wisnu Ananta Kusuma Yoka, Ranara Athalla