Article Per Year (5 Year)
p-Index From 2021 - 2026
0.983
P-Index
This Author published in this journals
All Journal Jurnal Kewidyaiswaraan Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer
Widjanarko Widjanarko
Unknown Affiliation
Computer Science & IT Education Languange, Linguistic, Communication & Media Social Sciences Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Meningkatkan Kinerja Pengelolaan Pinjaman Luar Negeri Pasca Covid 19 Widjanarko Widjanarko
Jurnal Kewidyaiswaraan Vol 6 No 2 (2021): Jurnal Kewidyaiswaraan
Publisher : Pusat Pembinaan Jabatan Fungsional Bidang Pengembangan Kompetensi Pegawai ASN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7269.933 KB) | DOI: 10.56971/jwi.v6i2.159

Abstract

This study discusses the Government's considerations in maintaining foreign loans as a complement to State Securities (SBN) to finance the deficit in the State Revenue and Expenditure Budget (APBN). There are three considerations to maintain the foreign loan procurement policy in financing the APBN deficit. First, the cost is relatively cheap. Second, the benefits in supporting the transfer of technology. Third, investment lever (/multiplier effect). This study concludes that the procurement of foreign loans has not fulfilled one of the considerations, namely cheap financing. The slow implementation of projects in the field resulted in most of the slow disbursements being extended. As a result, the Government must increase the cost of the commitment. The classic problem of delays in foreign loan projects has been around for a long time and is expected to continue. The delay was contributed by factors in the planning stage; effectiveness of loans, budgeting, auctions, disbursement, and implementation in the field. The non-implementation of the three line of defense model is one of the contributors to the failure of risk mitigation of foreign loan projects. There is a perception that increasing debt to combat the Covid-19 pandemic is normal. The momentum of the Covid-19 pandemic has become a challenge to change the old paradigm. That the cost of foreign loans, is relatively expensive, especially if it is late.
Pengaruh Arah Serat dan Fraksi Volume terhadap Kekuatan Impact Komposit Serat Tebu (Sugar Cane Fiber) Epoxy Moch Rakha Naufal Athilah; Widjanarko Widjanarko
Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 3 (2025): Juni: Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i3.892

Abstract

This study aims to examine the effect of fiber orientation and volume fraction on the impact strength of sugarcane fiber–epoxy composites. Sugarcane fiber is considered a promising natural reinforcement material due to its lightweight, renewable nature, and environmental friendliness. Specimens were fabricated using the vacuum bagging method with fiber orientations of 0°, 60°, 90°, and random, and volume fractions of 5%, 10%, 15%, and 20%. Impact testing was conducted according to ASTM D6110-10 to determine absorbed energy and impact strength. The results show that both fiber orientation and volume fraction significantly influence impact strength. The highest impact strength was achieved with a 15% volume fraction and 0° fiber orientation, reaching 0.085 J/mm² or an absorbed energy of 8.5 Joules. In contrast, the lowest value was recorded at a 15% volume fraction with 90° fiber orientation, yielding 0.018 J/mm² or 1.8 Joules. The interaction between these variables also contributed significantly to enhancing material toughness. These findings highlight the importance of optimizing fiber orientation and volume fraction in designing natural fiber-based composites for lightweight structural applications
Studi Optimasi Pengaruh Tekanan dan Waktu Pengeringan terhadap Kadar Air Ikan pada Proses Freeze Drying Dzaky Mirza Pradana; Widjanarko Widjanarko
Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 3 (2025): Juni : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i3.895

Abstract

This study aims to evaluate and optimize the effects of vacuum pressure and drying time on moisture content in the freeze drying process. Freeze drying was selected due to its ability to preserve the quality of food products by removing moisture through sublimation under low vacuum conditions. The vacuum pressure variables applied in this study were -62.8 cmHg, -64 cmHg, -67 cmHg, -70 cmHg, and -71.2 cmHg, while the drying times were varied at 8.2 hours, 9 hours, 11 hours, 13 hours, and 13.8 hours. Response Surface Methodology (RSM) with a Central Composite Design (CCD) was employed to analyze the individual effects and interactions of the two factors on final product moisture content. The results showed that both vacuum pressure and drying time significantly influenced moisture reduction, while their interaction effect was statistically insignificant. The optimum conditions were achieved at a vacuum pressure of -70.5 cmHg and a drying time of 12.6 hours, meeting the moisture content requirements based on SNI 8273:2023 standards. These findings are expected to serve as a practical reference for determining optimal operating parameters in freeze drying processes to improve efficiency and product quality.
Co-Authors Dzaky Mirza Pradana Joko Sugiarto Moch Rakha Naufal Athilah Moh. Imron Rosidi Sitti Nur Alam Sri Mulyono