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INDONESIA
AJIE (Asian Journal of Innovation and Entrepreneurship)
Published by Universitas Islam Indonesia
ISSN : 24773824     EISSN : 24770574     DOI : -
Core Subject : Economy,
Economics, Econometrics & Finance
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Volume 09, Issue 02, May 2025" : 6 Documents clear
Blue Carbon Potential of Salt Marshes in Kulon Progo for Climate Change Mitigation in Indonesia: english Mustofa, Ikrom; Wacano, Dhandhun; Setyawan, Bagus Dwi; Faradis, Irsyad; Nabil, Hilbram; Khaidar, Muhammad Al; Minnen, Tjalf van
Asian Journal of Innovation and Entrepreneurship Volume 09, Issue 02, May 2025
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ajie.vol9.iss2.art1

Abstract

Salt marshes along the coast of Kulon Progo in Yogyakarta can act as blue carbon storage facilities to achieve the climate change mitigation goals outlined in Indonesia’s Nationally Determined Contributions (NDC) for 2030. Three villages in Temon District became the location of this research: Glagah, Palihan, and Jangkaran Villages. A mixed-methods approach was employed in this research, encompassing direct field observation, soil and vegetation analysis in their capacity as carbon storage, and interviews with individuals in the 3 villages. The results of the analysis showed that there was a small amount of carbon content in various locations in the 3 villages. Mangroves and pine trees, particularly those growing around swamps, play a significant role in carbon absorption. However, this study revealed a decrease in the potential of salt marsh land due to changes in land use to Yogyakarta International Airport (YIA) and the surrounding city planning. As a result, carbon storage capacity is reduced, and carbon emissions from land that has changed function are higher. The study also sees the importance of strengthening government policies and regulations and increasing community participation in salt marsh conservation through village-based programs such as the Climate Village Program (PROKLIM) and Resilient Coastal Village. The study concludes that through salt marsh conservation, the potential for blue carbon becomes more significant, which also requires collaboration between stakeholders.
Perbandingan Hasil Recovery File terhadap Penghapusan File menggunakan Perintah Sdelete dan Shift+Delete: indonesia Rosi Rahmadi Syahputra; Prayudi, Yudi
Asian Journal of Innovation and Entrepreneurship Volume 09, Issue 02, May 2025
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ajie.vol9.iss2.art5

Abstract

The recovery of deleted data is an important aspect of forensic digital investigations, especially in identifying relevant evidence. However, deletion techniques such as the Sdelete command implement the Department of Defense (DoD) 5220.22-M standard which can permanently delete so that the process of recovering digital evidence from storage media will be difficult, while deletion using Shift+Delete only removes file references without overwriting the data, thus allowing data recovery with file carving techniques. This study uses a static forensic method, where the data in the flash drive has been deleted and acquired using FTK Imager so as to produce an imaging file to maintain the integrity of the evidence. After that, the imaging file is processed using file carving tools. This study aims to compare the results of deleted recovery using the Sdelete command and the Shift + Delete key combination and assess based on the highest percentage of the results of three file carving tools, namely Autopsy, Axiom Magnet, and Photore. The results of the study show that files deleted using Sdelete cannot be recovered by the three tools, both in terms of artifact findings and the suitability of hash values, according to Microsoft's claims. In contrast, files that have been deleted using the Shift + Delete key combination can still be recovered with varying success. PhotoRec has the highest recovery rate (90%), followed by Autopsy (88%) and Axiom Magnet (60%). In terms of hash value suitability, PhotoRec reaches 80%, while Autopsy 76% and Axiom Magnet 50%. These findings confirm that Sdelete is effective in permanently deleting data, while the Shift + Delete combination still allows for recovery with varying success rates. The author hopes that this research can be a new knowledge for digital forensic investigators in terms of selecting the most suitable file carving tools for digital evidence recovery.
Penjadwalan Optimal Perangkat IoT Menggunakan Algoritma Round Robin dalam Sistem Pemantauan Lingkungan: Sebuah Pendekatan Simulasi: english Burhandenny, Aji Ery; Pranoto, Sarwo; Suprihanto, Didit
Asian Journal of Innovation and Entrepreneurship Volume 09, Issue 02, May 2025
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ajie.vol9.iss2.art2

Abstract

This study explores the application of the Round Robin algorithm for scheduling tasks in Internet of Things (IoT) systems designed for environmental monitoring, such as temperature and humidity tracking. Efficient task scheduling is critical to minimize latency and energy consumption in IoT networks. Using a Python-based simulation, this research evaluates the performance of the Round Robin algorithm in managing 10 to 50 virtual IoT devices tasked with environmental data collection, comparing it with Priority with Aging and Genetic Algorithm approaches. The simulation results indicate that Round Robin reduces the average waiting time by 15% compared to random scheduling, while the Genetic Algorithm outperforms Round Robin by approximately 20% in high-density networks. This approach provides valuable insights into IoT scheduling efficiency without requiring physical deployment, making it relevant for large-scale IoT system development.
Kajian Literatur Perilaku Leaching dan Abrasi pada Beton Berpori: indonesia Hidayat, Khoirul Fatah; Kamulyan, Budi; Supraba, Intan
Asian Journal of Innovation and Entrepreneurship Volume 09, Issue 02, May 2025
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ajie.vol9.iss2.art4

Abstract

The durability of pervious concrete is threatened by the phenomena of leaching (chemical dissolution) and abrasion (mechanical wear). This systematic literature review analyzes studies from Scopus (2019–2024), utilizing keywords such as “pervious concrete” or “porous concrete”, “leaching”, and “abrasion”. Articles were selected based on open access, peer-review status, and relevance to experimental/theoretical data. Leaching, primarily driven by the dissolution of calcium from portlandite and C-S-H phases, weakens the cement matrix and increases porosity. Meanwhile, abrasion is physical wear resulting from mechanical forces that erode the cement paste and lead to aggregate dislodgement. Critically, leaching and abrasion interact synergistically in a self-reinforcing degradation cycle: leaching weakens the matrix, making it more susceptible to abrasion, while abrasion exposes fresh material, accelerating further leaching. Although material optimization (e.g., angular aggregates and silica fume additives) and controlled carbonation curing can mitigate degradation, significant research gaps persist. Notably, there is a lack of systematic investigation to optimize cement-aggregate ratios for simultaneous leaching and abrasion resistance, as well as a scarcity of standardized coupled degradation test protocols. To address this gap, a systematic investigation is needed to optimize the sand-to-cement ratio in concrete filters, balancing durability (including resistance to fluid friction during backwashing) with sustained filtration capacity. This is crucial for developing pervious concrete as a sustainable and durable urban solution.
Metode Pembuatan Alat Pelindung Wajah untuk Aktifitas Olahraga berbasiskan Teknologi Multi-Materials 3Dprinting: indonesia Riza, Rahmat; Muttaqin, Hazan Zainul
Asian Journal of Innovation and Entrepreneurship Volume 09, Issue 02, May 2025
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ajie.vol9.iss2.art3

Abstract

The face protection mask in soccer is an important tool that allows players with facial injuries to continue their soccer activities. However, it has unique characteristics such as specific face geometry and wound location. The application of the reverse engineering method combined with multi-material 3Dprinting technology was evaluated in this paper to develop a face protection mask that was comfortable to wear by a specific user. The results obtained showed that the face protection mask could conform to the specific facial contour of the user. The use of multi-material PLA combined with TPU made the inside of the mask softer when in contact with the user's skin.
Optimasi Sifat Fisik dan Mekanik Sambungan Las TIG (Tungsten Inert Gas) pada Baja SS400 dengan Variasi Nilai Arus Listrik: indonesia Purwaningrum, Yustiasih; Alvianto, Isal; Sidiq, Reza Arief
Asian Journal of Innovation and Entrepreneurship Volume 09, Issue 02, May 2025
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ajie.vol9.iss2.art6

Abstract

The study focused on optimizing the physical and mechanical properties of TIG (Tungsten Inert Gas) welded joints on SS400 steel, which is essential to fulfill quality standards in the industry. The aim of this study is to analyze the influence of welding current with variations in values of 85 Amperes, 90 Amperes and 95 Amperes on the physical and mechanical properties of welded joints.The material used was SS400 steel with a thickness of 3 mm. The welding parameters used are AWS A5 12-80 tungsten electrode with a diameter of 2.4 mm, filler ER70S-6 with a diameter of 1.6 mm, argon shielding gas, flow rate 6 liters/minute, voltage 230 V, and welding speed 1.46 mm/s. From the results of the tests carried out, the welding steel that used a current of 95 Ampere has the best performance. The results of the tensile test showed that the tensile strength of this specimen was 390.3 MPa. This value is higher when compared to other current variations which have a value of 224.1 MPa for 85 Ampere and 235.2 MPa for 90 Ampere. In the toughness test, the specimen with a current of 95 Ampere showed the best impact value that reached 1.27 J/mm. Microstructure observation of the specimen showed a phase change where in the HAZ and raw metal regions there were a pearlite and ferrite, then due to the high heat in the welding area and the addition of fillers, the ferrite changed its phase to grain boundary ferrite, Acicular ferrite and Widmanstatten ferrite

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