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All Journal AGRIVITA, Journal of Agricultural Science Jurnal Al-Qardh INTERNATIONAL JOURNAL OF MECHANICAL COMPUTATIONAL AND MANUFACTURING RESEARCH
Farah, Nadya
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Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Mechanical Engineering Social Sciences

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ANALISIS KASUS KEMISKINAN DI PROVINSI KALIMANTAN TENGAH DENGAN PENDEKATAN PRINCIPAL COMPONENT ANALYSIS Annisa Halida; Nadya Farah Pradita; Yuana Sukmawaty
AL-QARDH Vol 5, No 2 (2020): AL-QARDH
Publisher : Fakultas Ekonomi dan Bisnis Islam Institut Agama Islam Negeri Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23971/jaq.v5i2.2452

Abstract

According to a report by the Central Statistics Agency, the percentage of poor people in urban areas in September 2019 was 6.89%. Meanwhile, the percentage of poor people in rural areas in September 2019 was 13.10%. The data above is only a national percentage, there are still many provinces that have a poverty percentage above the national percentage, especially in Central Kalimantan Province. There are many factors that influence poverty, including education, employment status, working sector, and per capita income. This paper focuses on a study to determine the factors that have the greatest influence on poverty in Central Kalimantan Province in 2019. The results of this study simplify the poverty factor into 2 (two) factors, namely the first factor consisting of variables of education, work status, and sector. work. Meanwhile, the second factor consists of the variable per capita income for food. In addition, the greatest eigen value was obtained in the education variable of 465.67, which indicates that the education variable has the greatest influence on poverty in Central Kalimantan Province in 2019.
Comparative Study of Nano-chitosan and Synthetic Bactericide Application on Chili Pepper (Capsicum annuum L.) Infected by Xanthomonas campestris Rizkita R. Esyanti; Nadya Farah; Brahmani D. Bajra; Diah Nofitasari; Ronny Martien; Sunardi Sunardi; Ramadhani Safitri
AGRIVITA, Journal of Agricultural Science Vol 42, No 1 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v42i1.1283

Abstract

Nano-chitosan is considered as a prospective replacement for synthetic bactericides. In this study, the antibacterial activity of nano-chitosan and synthetic bactericides was compared in four chili pepper cultivars (Bianca, Lado, Kiyo, and Tanamo) infected by Xanthomonas campestris. To assess the effect of nano-chitosan and synthetic bactericide on the growth of the X. campestris-infected chili pepper plants, some parameters were observed including the plant height, number of leaves and chlorophyll content. It was shown that nano-chitosan was highly effective in controlling the pathogen infection on Bianca, Lado, and Tanamo, but not significant on Kiyo. The application of synthetic bactericide, however, was effective on Bianca and Lado, but not significant on Kiyo and Tanamo. It was also shown that the application of nano-chitosan can improve the growth of the X. campestris-infected chili pepper plants based on the significant difference on the plant height, number of leaves and chlorophyll content of cultivars tested, especially in Kiyo, Lado, and Tanamo. The application of synthetic bactericide, however, did not significantly improve the growth of the X. campestris-infected chili pepper plants. Nano-chitosan was shown to be effective in reducing the infection of X. campestris and potentially be used as an alternative to synthetic bactericide.
Development of a sustainable bayonet sheath from recycled plastic bottle filament Silalahi, Nick Holson Mangiring; Maha, Notherino Norman Horas; Setiawan, Anang; Fauzi, Ahmad Hasan; Farah, Nadya
International Journal of Mechanical Computational and Manufacturing Research Vol. 14 No. 2 (2025): August: Mechanical Computational And Manufacturing Research
Publisher : Trigin Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/computational.v14i2.274

Abstract

This study explores the feasibility of converting post-consumer polyethylene terephthalate (PET) beverage bottles into functional filament for additive manufacturing, with a specific focus on producing bayonet sheaths for Indonesian military applications. The primary objective is to determine whether recycled PET can serve as a viable alternative to conventional filaments in terms of mechanical performance and practical applicability. The research employed an experimental approach, processing PET waste into filament via the Fused Filament Fabrication (FFF) method. The material was evaluated for tensile and flexural properties in accordance with ASTM D638 and ASTM D790 standards. Two commercially available filaments, polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS), were used as benchmarks for comparison. PET specimens underwent controlled tensile and bending tests to assess strength, elongation, and deformation behavior. Results showed that recycled PET demonstrated comparable, and in certain metrics superior, performance relative to the benchmark materials, particularly in hardness and load resistance. Although minor inconsistencies were observed, likely to be due to extrusion or printing variations, these did not significantly affect functional performance. A bayonet sheath produced from recycled PET filament met both structural and practical requirements, confirming its suitability for protective gear. This study concludes that recycled PET not only fulfills mechanical requirements for military applications but also contributes to environmental sustainability by reducing plastic waste and supporting circular economy initiatives. The findings highlight the potential for recycled PET to be adopted in broader manufacturing sectors requiring durable, cost-effective, and eco-friendly materials. Further research is recommended to optimize processing techniques, enhance surface characteristics, and evaluate long-term performance under varying operational and environmental conditions to fully validate its industrial viability.
Co-Authors Anang Setiawan Annisa Halida Brahmani D. Bajra Diah Nofitasari Fauzi, Ahmad Hasan Lisa Paradila Maha, Notherino Norman Horas Ramadhani Safitri Rizkita R. Esyanti Ronny Martien Silalahi, Nick Holson Mangiring Sunardi Sunardi Yanti Meldasari Lubis Yuana Sukmawaty Zaidiyah Zaidiyah