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All Journal AUSTENIT Jurnal Teknik Mesin Jurnal Sains Pertanian
Azizi, M
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Veterinary

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DESIGN CONCEPT FOR THE DEVELOPMENT OF NATURAL PLANT FIBER EXTRACTOR AS A RAW MATERIAL FOR NATURAL FIBER COMPOSITES Azizi, M; Susilo, R. Dwi Pudji; Sebayang, Darwin; Fitri, Muhamad
AUSTENIT Vol. 16 No. 2 (2024): AUSTENIT: October 2024
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v16i2.8886

Abstract

The design concept is used for the development of natural plant fiber extractors as raw materials for making natural fiber composites. The extractor is a tool used to extract natural plant fibers which are expected to produce natural fibers as raw materials for making natural fiber composites. In the previous tool, there are still several shortcomings that can be redeveloped, both for the sake of the tool itself and in terms of the fiber produced. In this journal, it is focused on making design concepts before the development of the extractor tool, including identifying problems in previous tools, determining the functional structure, finding solutions to existing problems, determining development specifications on the tool and also evaluating from the technical and economic side. In the process of this design concept, There are several things that are highlighted in the previous tools to be developed, including the mobility of the tool, the quality and quantity of fiber produced, production time and safety aspects and also environmentally friendly. Thus, in the end, all of it will be narrowed down to the choice of specifications needed to support this with the consideration of the objective tree.
Pengaruh Pemberian Asam Humat Dan Dosis NPK Pada Peningkatan Produksi Kacang Panjang Yusli Harta, Rika; Untari, Yulis; Azizi, M; Widianti, Dinda
Jurnal Sains Pertanian Vol. 8 No. 2: June 2024
Publisher : Fakultas Pertanian Universitas Almuslim Bireuen Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51179/jsp.v8i2.2619

Abstract

Kacang panjang (Vigna cylindrica L) adalah tanaman perdu semusim yang menjalar dan merambat. Berkerabat dekat dengan kacang tunggak dan kacang bombay, tanaman ini termasuk dalam subspecies Vigna sinensis. Kacang panjang kaya gizi dengan kandungan karbohidrat lebih dari 50% dan protein 20% pada biji kering, serta mengandung lemak 0,3 gram, Vitamin A, dan B1. Nutrisi penting untuk pertumbuhannya, sehingga diperlukan pemupukan. Penelitian ini bertujuan mengkaji respon produksi kacang panjang terhadap dosis asam humat dan NPK. Dilaksanakan di Pusat Riset dan Bisnis Kopbun Suka Tani Sejahtera, Kecamatan Kota Juang, Kabupaten Bireuen, dari September hingga November 2023. Menggunakan Rancangan Acak Kelompok Pola Faktorial (RAK) 4×3, terdapat 12 kombinasi perlakuan yang diulang 3 kali, menghasilkan 36 satuan percobaan. Faktor pertama adalah dosis asam humat (V) dengan tiga taraf: V1= 5 gr/tanaman, V2= 10 gr/tanaman, V3= 15 gr/tanaman. Faktor kedua adalah dosis NPK (D) dengan empat taraf: D0= kontrol, D1= 10 g, D2= 20 g, D3= 30 g. Hasil menunjukkan aplikasi Rockphospat mempengaruhi tinggi tanaman pada umur 15, 30, dan 45 HST, diameter batang pada umur 30 dan 45 HST, jumlah daun pada umur 15 dan 45 HST, serta jumlah dan bobot buah pada umur 60-90 HST, dan berat segar buah pada umur 110 HST.
SIMULATION HEAT AFFECTED ZONE WELDING ON AISI 1045 STEEL USING MATLAB gunawan, hardi; Firdaus, Andi; Tarigan, Kontan; Azizi, M; Khaerudini, Deni Shidqi
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 15, No 01 (2026)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v15i01.27335

Abstract

Abstract--In this research, AISI 1045 steel plate test objects were welded using SMAW welding. Heat input simulation of the welding process (thermal simulation) by entering the highest temperature of the heat distribution is carried out on a 140 x 140 mm plate with a thickness of 4 mm made of AISI 1045 steel. Initially, the plate has temperature limits of 700 °C, 500 °C, above 1300 °C, and below 0 °C. The bottom side of the plate is protected with constant temperature. The test object is then described using numerical methods using the MATLAB program. In this research, we can use MATLAB to develop a mathematical and numerical model that reflects the effect of the heat affected zone (HAZ) on the mechanical quality of AISI 1045. This model helps in the understanding of how the heat input provided from the welding process influences the mechanical material properties and allows us to optimize the influence of the process to obtain the desired results. Calculations carried out using the MATLAB application obtained results in the 9th iteration for errors <1%, namely 0.4681%. Large heat input results in low tensile strength, this shows that the welded joint with the electrodes used and the given welding parameters produced good joint strength.
Co-Authors Darwin Sebayang Deni Shidqi Khaerudini Firdaus, Andi Hardi Gunawan Muhamad Fitri Susilo, R. Dwi Pudji Tarigan, Kontan Untari, Yulis Widianti, Dinda Yusli Harta, Rika