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All Journal Rekayasa Mesin Jurnal Manajemen Agribisnis dan Agroindustri Jurnal Teknik Terapan (J-TETA)
Nugroho, Wendy Triadji
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Influence of Profile, Education Level, and Business Scale on Productivity of Business Actors in the Coconut Sugar Production Process in Lojejer Village, Wuluhan District Wijayanti, Fifin; Rujito, Hari; Nugroho, Wendy Triadji
Jurnal Manajemen Agribisnis dan Agroindustri Vol. 4 No. 1 (2024): June
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jmaa.v4i1.85

Abstract

This study reveals the effect profile business, educational level and scale of the productivity of coconut sugar farm businesses is to analyze the factors affecting the production process on the productivity of coconut sugar farm businesses. In this study reveals the influence of the factors profiles of business, education, and business scale either jointly or partially, and include also the dominant factors that influence the productivity of coconut sugar farm businesses, particularly businesses coconut sugar Lojejer village, Wuluhan district. The analytical tools used in this research is the analysis of multiple linear regression. Overall the results of this study it can be concluded that the factors profiles of business, education level, and scale simultaneously affect the productivity of coconut sugar farm businesses. Partially, profile entrepreneurs, business scale, while the level of education have a significant effect on productivity is insignificant coconut sugar farm businesses. For the dominant factors affecting the productivity of farm businesses palms sugar is the profile of entrepreneurs.
DIMENSIONAL ACCURACY OF 3D PRINTED DOG BONE STRUCTURES Nugroho, Wendy Triadji; Tyagita, Dicky Adi; Wahyudiono, Arif; Suranto, Dwi Djoko
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.2158

Abstract

The current study provides a comprehensive discussion regarding statistical analysis of dimensional accuracy comprising thickness, gauge section width, circularity and cylindricity for 3D printed polylactic acid (PLA) specimens according to the dimensional specifications of ASTM D638 standard type IV, which are optimally built via fused deposition modelling (FDM). This work focuses on investigating the primary influences of 3D printing parameters as input factors consisting of nozzle temperature, infill density as well as layer height on dimensional deviation of the printed specimens. The confirmation tests are implemented in this study to ensure the experimental work's reproducibility. The resulting data shows that layer height dominates the effects, namely 80, 88, 81 and 81% on thickness, gauge section width, circularity and cylindricity. Meanwhile, nozzle temperature gives the second considerable influence on dimensional deviation of printed specimens, around 16, 9, 16 and 17%. Conversely, infill density promotes a negligible effect on the dimensional error of such specimens. Furthermore, the confirmation tests indicate that the experimental works are highly reproducible. These findings can contribute significantly to the additive manufacturing technology for PLA material, especially when the printed specimens are used for specific applications in biomedical, engineering and aerospace fields.
Rancang Bangun Switching Mode Power Supply dengan Variasi Lilitan Sekunder Transformator untuk Proses Elektroplating Kholil, Moh.; Sulistiono, Dety Oktavia; Adityo, Adityo; Pratama, Aditya Wahyu; Nugroho, Wendy Triadji
Jurnal Teknik Terapan Vol. 3 No. 1 (2024): April
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jteta.v3i1.35

Abstract

Pada saat ini catu daya konvensional atau linier sudah tidak relevan diperangkat elektronik dan akhir-akhir ini sudah dikembangkan switching mode power supply (SMPS). switching mode power supply (SMPS) adalah catu daya yang menggunakan MOSFET sebagai saklar yang dihubungkan ke trafo ferrit. Penelitian ini bertujuan untuk mengetahui pengaruh kawat diameter 0,40 dan 0,45 mm dengan 4, 6, dan 8 lilit dirangkap 5 secara bersamaan pada bagian sekunder, serta untuk mengetahui pengaruh tegangan dan kuat arus pada proses elektroplating. Pengujian catu daya SMPS dengan melakukan proses elektroplating selama 20 menit dengan spesimen besi dan bahan pelapis nikel. Pada penelitian ini mendapatkan hasil yang bagus menggunakan kawat diameter 0,40 mm dengan 4, 6, dan 8 lilit. Hasil dari penelitian catu daya SMPS dengan dengan 4, 6, dan 8 lilit terhadap output tegangan tidak mengalami penambahan secara signifikan yang berkisar sebesar 8,8 V. Sedangkan pada output kuat arus pada kawat berdiameter 0,40 mm mengalami peningkatan 0,759 A, 5,038 A dan tertinggi 5,424 seiring banyaknya jumlah lilitan, akan tetapi pada 0,45 mm mengalami penurunan 4,366 A, 1,396 A, dan yang terendah 1,069 A seiring banyaknya jumlah lilitan. Untuk hasil dari elektroplating didapat hasil yang bagus secara penambahan berat pada spesimen menggunakan kawat berdiameter 0,40 mm dengan 6 lilit.
Co-Authors Aditya Wahyu Pratama Adityo Adityo, Adityo Arif Wahyudiono Dety Oktavia Sulistiono Dicky Adi Tyagita Hari Rujito Kholil, Moh. Suranto, Dwi Djoko Wijayanti, Fifin