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All Journal Jurnal Pariwisata Terapan Jurnal Hutan Pulau-Pulau Kecil : Jurnal Ilmu-Ilmu Kehutanan dan Pertanian Jurnal Nasional Teknologi Terapan Jurnal Pengabdian dan Pengembangan Masyarakat Jurnal Ilmu-Ilmu Kehutanan Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Informatika: Jurnal Pengembangan IT Jurnal Penyuluhan Pembangunan
Hidayat, Rochmad
Program Studi Pengelolaan Hutan, Departemen Teknologi Hayati Dan Veteriner Sekolah Vokasi, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Social Sciences Other

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The Extent of Damage to Live Stands in Sago Forests due to Logging in Ihamahu and Rumahkay, Maluku Probo Santoso; Rochmad Hidayat; Wisnu Hasan; Rasyied Ichwan B; Alifa Diah Ayu Sekar
Jurnal Ilmu Ilmu Kehutanan Vol. 7 No. 2 (2023)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.7.2.92-102

Abstract

It is feared that the natural growth of sago is unable to keep up with the high intensity of logging. Therefore, sago forest stands need to be managed properly and planned by organizing effective and efficient harvesting to minimize damage to live stands. The purpose of this study was to analyze the impact of logging on the damage of live stands. This research was conducted in Maluku Province, during October - December 2022. Data were collected by observing logging activities, measuring trees and making measuring plots with a size of 20 m x 20 m to measure damage to live stands. The results showed that the level of damage to live stands in the conventional logging system was higher at 31.82% when compared to controlled logging with a value of 12.42%. The productivity of controlled logging was higher than conventional logging. The level of damage to live stands and logging productivity in sago stands is highly dependent on the logging system carried out.
Analisis tidak Centernya Shaft pada Kinerja Cargo Oil Pump di Kapal MT. Kurau Rochmad Hidayat; Muhammad Darwis; Indah Ayu Johanda Putri; Agus Prawoto; Frenki Imanto; Shofa Dai Robbi
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 1 (2025): April : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i1.5040

Abstract

This study discusses the causes of leakage in cargo oil pumps, which play a crucial role in the discharge operation of tankers carrying oil, chemicals, and gas. Regular maintenance is essential to prevent damage that could hinder the ship's operations. The method used is descriptive qualitative, with data gathered from observations, interviews, documentation, and literature review. The analysis is conducted using Fishbone to identify the root causes of the problem. The results show that leakage occurs due to the misalignment of the pump shaft. This misalignment causes excessive vibration at high speeds, damaging components, especially the carbon seal face of the mechanical seal, leading to leakage of cargo. Preventive measures include regular and scheduled maintenance, proper lubrication, routine inspection while the pump is running, and alignment checks to ensure the shaft is straight. If any issues are found, repair or replacement with new parts is necessary to ensure the pump operates efficiently and the discharge process runs smoothly.
Co-Authors Agus Ngadianto Agus Prawoto Ahdiar Fikri Maulana Alifa Diah Ayu Sekar B, Rasyied Ichwan Dania Sintia Denni Susanto Dhea P Wijaya Frenki Imanto Hasan, Wisnu Indah Ayu Johanda Putri Muh. Darwis Oktalina, Silvi Nur P. Eko Prasetyo Prasetyo Nugroho Pratomo, Dinar Nugroho Probo Santoso Probo Santoso PUJI LESTARI Rasyied Ichwan B Ridla Arifriana Santoso, Probo SATRIYAS ILYAS Sekar, Alifa Diah Ayu Shofa Dai Robbi Silvi Nur Oktalina Silvi Nur Oktalina Silvi Nur Oktalina Silvi Nur Oktalina Oktalina Singgih Utomo Singgih Utomo Wisnu Hasan Wiyono Wiyono Wiyono Wiyono Wiyono Wiyono wiyono Wiyono Wiyono