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All Journal Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Kabar Masyarakat
Arief Syarifuddin
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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 Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences

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Desain Dermaga Apung Sebagai Sarana Penunjang Kegiatan Ekonomi Nelayan Di Desa Aeng Sareh Muhammad Haris Afifuddin; Arief Syarifuddin; Anauta Lungiding Angga Risdianto; Qusyairi Lubis
Jurnal Kabar Masyarakat Vol. 1 No. 4 (2023): November : JURNAL KABAR MASYARAKAT
Publisher : Institut Teknologi dan Bisnis Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jkb.v1i4.1062

Abstract

The dock is a ship mooring facility to support the sustainability of water transportation (Irwan, 2019). Current developments in many docks use floating docks, where the dock is like a pontoon made of steel or concrete boxes and can float according to changes in water level (Utomo, 2018). Many fishermen in the Sampang Regency area moor at docks made of bamboo on the shoulders of rivers and there are also boats moored around the coast. The condition of the bamboo pier on the river is not very suitable because if the river water recedes it will affect when fishermen are loading and unloading. This problem makes researchers want to make the main object to be able to create design training for young fishermen that is appropriate to the conditions of the river in Aeng Sareh Village, which is often used by fishermen to moor their boats. Researchers offer designs to fishermen in Aeng Sareh Village which will later be used for development.
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 Angga Risdianto Aurista Miftahatul Ilmah Belgis Risky Wijaya Mohammad Hamid Muhammad Arus Samudera Muhammad Haris Afifuddin Qusyairi Lubis Taufan Prasetyo Triyanti Irmiyana