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Pengaruh Konsentrasi Minyak Cengkeh (Eugenia aromatica) Terhadap Kelulushidupan Benih Ikan Lele Dumbo (Clarias gariepinus) pada Transportasi Tertutup Ilham Kurniawan; Jarod Setiaji
Jurnal Dinamika Akuakultur Vol 1 No 2 (2025): Jurnal Dinamika Akuakultur Edisi November 2025
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jda.2025.vol1(2).26630

Abstract

Penelitian ini bertujuan untuk mengevaluasi pengaruh konsentrasi minyak cengkeh (Eugenia aromatica) terhadap tingkat kelulushidupan benih ikan lele dumbo (Clarias gariepinus) selama transportasi tertutup. Percobaan dilakukan dengan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari lima perlakuan dengan tiga ulangan, yaitu P0 (0%/L; tanpa minyak cengkeh), P1 (0,20%/L), P2 (0,25%/L), P3 (0,30%/L), dan P4 (0,35%/L). Parameter utama yang diamati adalah kelulushidupan benih, sedangkan parameter pendukung meliputi kualitas air (suhu, pH, dan oksigen terlarut/DO). Hasil penelitian menunjukkan bahwa penambahan minyak cengkeh memberikan pengaruh signifikan terhadap kelulushidupan benih ikan lele dumbo pada sistem transportasi tertutup. Konsentrasi terbaik ditemukan pada perlakuan P1 (0,20%/L) dengan kelulushidupan mencapai 97,33 ± 1,15%. Temuan ini mengindikasikan bahwa minyak cengkeh efektif sebagai bahan pembius untuk mengurangi stres pada ikan selama transportasi, dengan konsentrasi 0,20% menjadi yang paling optimal dalam mempertahankan kelulushidupan tinggi. Kesimpulannya, minyak cengkeh dapat direkomendasikan sebagai anestesi alami dalam transportasi tertutup benih ikan lele dumbo untuk meningkatkan kelulushidupan.
Influence of Geometric Parameters on Fatigue Life of Two-Planar Tubular DKT Joints Based on Fracture Mechanics Under a Combination Loading Muhammad Akbar Hardian; Rudi Walujo Prastianto; Ilham Kurniawan
International Journal of Offshore and Coastal Engineering Vol. 9 No. 1 (2025)
Publisher : Department of Ocean Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j225800914.v9i1.4521

Abstract

According to SKK Migas, Indonesia has operated 613 units of offshore platforms which is 54.65% of the platforms are more than 20 years old, and 24.63% are between 16-20 years old. With the extension of its operation time, the structural integrity of the old platform will decrease. One of the potential consequences is structural failure due to cyclical loading caused cracks. . This research aims to determine the influence of geometric parameters in DKT twoplanar tubular joints on fatigue life based on fracture mechanics. By varying geometric parameters, we can see the influence of geometric parameters on fatigue life under combined loads of axial, in-plane bending, and out-of-plane bending moments. The tubular joints are modeled locally and analyzed using Finite Element Analysis (FEA), and the crack is modeled as a semi-elliptical form. Fatigue life analysis is performed by varying geometric parameters under the combined loads. After carrying out a sensitivity analysis on all geometric parameters, it was concluded that the gamma parameter had the most influence on the combined load with a sensitivity of 89%.
Analisis Isi Kekerasan Verbal terhadap Agama Islam dalam Konten Youtube Jozeph Paul Zhang Ilham Kurniawan; Ahmad Tamrin Sikumbang; Muktarruddin Muktarruddin
ANWARUL Vol 3 No 3 (2023): ANWARUL: Jurnal Pendidikan dan Dakwah
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/anwarul.v3i3.1159

Abstract

In general to find out verbal abuse in Jozeph Paul Zhang's youtube content. And specifically to find out about verbal violence against the Islamic religion in Jozeph Paul Zhang's Youtube Content. The research method uses a qualitative approach to content analysis with the research subject, namely Jozeph Paul Zhang's YouTube content, data collection techniques using coding sheets. Data analysis techniques use content analysis using the Roland Barthers method. The results of the research are: 1. The contents of Jozeph Paul Zhang's youtube content are hate speech (Head Speech). 2. As for verbal violence in Joseph Paul Zhang's youtube content, it can be found in videos that aired in April 2021 and February 2023 with verbal abuse sayings including: "Speaking of a prophetic voice because there are many injustices against minorities", "He said God is thirsty blood killed one thousand two hundred people", "Islamic Allah punishes his own people", "Muslims are repeatedly punished by Allah SWT, he says it's a trial" and "Muslims who are bastards and cant believe in gebleg teachings". The aims of this study are: 1. To find out the contents of Jozeph Paul Zhang's YouTube content. 2. To find out verbal violence against Islam in Jozeph Paul Zhang's YouTube content.