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All Journal JOURNAL ONLINE OF PHYSICS Eksakta : Berkala Ilmiah Bidang MIPA Jurnal bintang manajemen
Triyanti Irmiyana
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics

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PEMANFAATAN KOMPOSIT ENCENG GONDOK DAN SERABUT KELAPA SEBAGAI BAHAN INSULASI PADA KOTAK PENDINGIN IKAN (COOLBOX) Aurista Miftahatul Ilmah Aurista; Triyanti Irmiyana; Moh. Irfan
JOURNAL ONLINE OF PHYSICS Vol. 6 No. 2 (2021): JOP (Journal Online of Physics) Vol 6 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v6i2.13013

Abstract

The quality of freshness of fish caught by traditional fishermen must be maintained, one way is by adding coolbox insulation so that it can insulate heat on fishing boats. So far, fishermen use sterofoam as a temperature barrier to maintain the freshness of the fish. The use of sterofoam can pollute the environment. In this research, water hyacinth composite fiber and coconut fiber are used to manufacture coolbox insulation to replace sterofoam as a coolbox insulation material on fishing boats. Water hyacinth powder and dry coconut fibers are mixed into polyurethane with a mass percentage of 40% and 50% which will be compared with pure polyurethare, testing is then carried out to obtain the lowest temperature time and temperature data. The test results show that the percentage of 60% polyurethane and 40% of water hyacinth powder and coconut fiber has an insulation power closer to pure polyurethane with a resistance time of 690 minutes with the lowest temperature of -3 ° C.
Analisis Faktor Ketertatikan Desa Wisata Melalui Sarana Bumber Boad Menggunakan Metode SPSS Anauta lungiding A.R.; Triyanti Irmiyana; Windra Iswidodo; Taufan Prasetyo; Retno Syahriawati Dewi
Jurnal Bintang Manajemen Vol. 1 No. 2 (2023): Juni : Jurnal Bintang Manajemen
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jubima.v1i2.1430

Abstract

Sampang Regency has tourism potential, one of which is the Klampis Reservoir in Kedundung Village. Reservoir with an area of ​​approximately 1 hectare is a catchment area that has not been properly optimized by the community. This condition is exacerbated by the presence of wild plants that disturb the view. So that this research provides an innovation in the form of a source boad suggestion. To support the facilities, an analysis of the factors of tourist interest in visiting is carried out in order to synchronize the needs of the community with the invasion given. The method used is SPSS to improve quality and improve the quality of a variable. This method uses analysis of questionnaire data. This study uses 30 questionnaire samples to strengthen the results of the analysis. The purpose of this study is to find out the factors that most influence the sustainability of the tourist village area through the means of bounty boad. The results of the research on factors that can influence are the availability of facilities and infrastructure with an average total value of 500.
Analysis of The Effect of Soundproofing on Ship Engines Based on Composite Materials Made from Tofu Dregs (Glycine Max L Merill) Aurista Miftahatul Ilmah; Anauta Lungiding Angga Risdianto; Belgis Risky Wijaya; Arief Syarifuddin; Triyanti Irmiyana; Taufan Prasetyo; Muhammad Arus Samudera; Mohammad Hamid
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 25 No. 03 (2024): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol25-iss03/436

Abstract

Minimizing ship noise and vibrations is crucial due to  potentially severe consequences, such as communication problems, sleep disturbances, stress, and structural damage. To address this, effective dampers are necessary. Many soundproofing materials now utilize natural fiber waste to replace synthetic materials, which are harmful to environment. One underutilized natural fiber is tofu dregs, which contain fibers suitable for sound absorption. This study investigates using tofu dregs as a composite material in sound-dampening applications. Composites are materials engineered from two or more substances with different properties to create a heterogeneous mixture. In this research, sound-dampening composites were developed using tofu dregs combined with carbon black and talc duco. The study found that the composite containing 60 grams of tofu dregs, 60 grams of talc duco, and 50 grams of resin achieved a sound absorption coefficient of α = 0.19. Meanwhile, the composite with 60 grams of tofu dregs, 50 grams of carbon black, and 50 grams of resin achieved a higher sound absorption coefficient of α = 0.24. These results indicate that the tofu dregs and carbon black composite offer superior sound absorption compared to tofu dregs and talc duco composite, demonstrating potential of tofu dregs as an eco-friendly soundproofing material.
Co-Authors Anauta lungiding A.R. Anauta Lungiding Angga Risdianto Arief Syarifuddin Aurista Miftahatul Ilmah Aurista Miftahatul Ilmah Belgis Risky Wijaya Moh. Irfan Mohammad Hamid Muhammad Arus Samudera Retno Syahriawati DewI Taufan Prasetyo Windra Iswidodo