cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Angelia Putriana
Contact Email
angel@literasisains.id
Phone
+6281275518124
Journal Mail Official
jurnal.insologi@gmail.com
Editorial Address
Jl. Bunga Cempaka No. 51D. Medan. Indonesia
Location
Kota medan,
Sumatera utara
INDONESIA
Jurnal Sains dan Teknologi
Published by Yayasan Literasi Sains Indonesia
ISSN : 28284992     EISSN : 28284984     DOI : https://doi.org/10.55123/insologi
Core Subject : Health, Science, Education, Agriculture, Engineering,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary
INSOLOGI (Jurnal Sains dan Teknologi) diterbitkan 6 (enam) kali dalam setahun, yaitu pada bulan Februari, April, Juni, Agustus, Oktober dan Desember oleh Yayasan Literasi Sains Indonesia. Jurnal INSOLOGI adalah jurnal yang dapat diakses secara terbuka bagi para Peneliti, Dosen dan Mahasiswa yang ingin mempublikasikan hasil penelitiannya pada bidang ilmu sains dan teknologi. Jurnal INSOLOGI juga merupakan wadah informasi berupa hasil penelitian, studi kepustakaan, gagasan, aplikasi teori dan kajian analisis kritis dibidang perkembangan sains dan teknologi yang meliputi bidang ilmu pengetahuan alam (biologi, kimia, dan fisika), matematika dan statistik, perikanan/kelautan, kesehatan dan farmasetika, pertanian (agribisnis dan agroteknologi), keteknikan (teknik sipil, mesin, arsitektur, lingkungan, dan pertambangan), pengembangan/desain miniatur/rancang bangun dan bidang ilmu lainnya yang relevan dengan penelitian sains dan teknologi.
Arjuna Subject : Matematika - Matematika Terapan
Articles 612 Documents
 58   59   60   61   62 
Rancang Bangun dan Uji Kinerja Mesin Pencacah Pelepah dan Daun Kelapa Sawit untuk Pra-Pengolahan Biomassa Yang Fitri Arriyani; Rodika Rodika; Muhammad Haritsah Amrullah
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 4 (2026): Agustus 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i4.9270

Abstract

Oil palm fronds and leaves are abundant plantation residues with potential for utilization as renewable biomass, including feedstock for bio-pellet production. The utilization of this biomass requires preprocessing, particularly size reduction using a chopping machine. This study aimed to design, fabricate, and evaluate the performance of a chopping machine for oil palm fronds and leaves as an initial stage of biomass preprocessing. The developed machine features a horizontal chopping chamber, 18 spiral-arranged rotating blade holders, removable cutting blades, 10 fixed cutting blades, and a screen for controlling material discharge. The machine has been granted Simple Patent No. IDS000006381. Performance testing was conducted in three trials using 5 kg of oil palm fronds in each trial. The results showed chopping times of 100–110 seconds, with capacities ranging from 163.64 to 180.00 kg/h and an average capacity of 172.24 kg/h. The chopping yield ranged from 50% to 80%, with an average yield of 64.67%. The chopped material has potential for further biomass processing as an initial feedstock for bio-pellet production.
Analisis Usaha dan Kelayakan Finansial Perikanan Pancing Tonda di Pelabuhan Perikanan Nusantara Palabuhanratu Sukabumi Wisnu Ardiansyah; Eko Sri Wiyono; Nurhasanah Nurhasanah
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 4 (2026): Agustus 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i4.9322

Abstract

Troll line fisheries represent one of the economically important pelagic fishing activities at Palabuhanratu Nusantara Fishing Port (PPN Palabuhanratu), Indonesia. This study aimed to analyze the business characteristics, costs, revenues, profits, and financial feasibility of troll line fisheries based on fishing-day intensity. A survey was conducted on 18 fishing vessels, which were classified into three groups: Lower, Middle, and Upper. The financial analysis included total cost, total revenue, profit, Revenue Cost Ratio (R/C), Break Even Point (BEP), Net Present Value (NPV), Internal Rate of Return (IRR), and Net Benefit Cost Ratio (Net B/C). The results showed that the Middle group achieved the best financial performance, with an annual revenue of IDR 307,784,000, an annual profit of IDR 157,662,500, an R/C ratio of 1.25, an NPV of IDR 502,139,318, an IRR of 22.26%, and a Net B/C ratio of 1.17. All business groups were financially feasible, as indicated by an R/C ratio greater than 1, positive NPV, IRR exceeding the discount rate, and Net B/C greater than 1. Increasing the number of fishing days did not necessarily improve profitability, indicating that operational efficiency is the primary factor in enhancing the profitability of troll line fisheries.

Page 62 of 62 | Total Record : 612

 58   59   60   61   62 

Filter by Year

2022 2026


Reset
Filter By Issues
All Issue Vol. 5 No. 4 (2026): Agustus 2026 Vol. 5 No. 3 (2026): Juni 2026 Vol. 5 No. 2 (2026): April 2026 Vol. 5 No. 1 (2026): Februari 2026 Vol. 4 No. 6 (2025): Desember 2025 Vol. 4 No. 5 (2025): Oktober 2025 Vol. 4 No. 4 (2025): Agustus 2025 Vol. 4 No. 3 (2025): Juni 2025 Vol. 4 No. 2 (2025): April 2025 Vol. 4 No. 1 (2025): Februari 2025 Vol. 3 No. 6 (2024): Desember 2024 Vol. 3 No. 5 (2024): Oktober 2024 Vol. 3 No. 4 (2024): Agustus 2024 Vol. 3 No. 3 (2024): Juni 2024 Vol. 3 No. 2 (2024): April 2024 Vol. 3 No. 1 (2024): Februari 2024 Vol. 2 No. 6 (2023): Desember 2023 Vol. 2 No. 5 (2023): Oktober 2023 Vol. 2 No. 4 (2023): Agustus 2023 Vol. 2 No. 3 (2023): Juni 2023 Vol. 2 No. 2 (2023): April 2023 Vol. 2 No. 1 (2023): Februari 2023 Vol. 1 No. 6 (2022): Desember 2022 Vol. 1 No. 5 (2022): Oktober 2022 Vol. 1 No. 4 (2022): Agustus 2022 Vol. 1 No. 3 (2022): Juni 2022 Vol. 1 No. 2 (2022): April 2022 Vol. 1 No. 1 (2022): Februari 2022 More Issue