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Nitha
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Pemanfaatan Botol Plastik Bekas Sebagai Alat Irigasi Tetes Sederhana untuk Efisiensi Air pada Tanaman Hortikultura di Lembang Pa’tengko Kabupaten Tana Toraja Nofrianto Pasae; Nitha; Petrus Sampelawang; Yafet Bontong; Fikran; Suri Toding Lembang
Celebes Journal of Community Services Vol. 5 No. 1 (2026): December - May
Publisher : STIE Amkop Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37531/celeb.v5i1.3546

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk memberikan solusi terhadap permasalahan pengairan tanaman hortikultura di Lembang Pa’Tengko, sekaligus menangani permasalahan sampah plastik yang belum terkelola dengan baik. Melalui pelatihan pembuatan irigasi tetes sederhana berbahan dasar botol plastik bekas, masyarakat dibekali keterampilan praktis yang mudah diterapkan, efisien dalam penggunaan air, dan ramah lingkungan. Metode ini sangat cocok diterapkan di wilayah Lembang Pa’Tengko yang masyarakatnya memiliki aktivitas padat, sehingga tidak memiliki cukup waktu untuk melakukan penyiraman tanaman secara manual. Selain membantu proses pertanian hortikultura, kegiatan ini juga mendorong kesadaran lingkungan dengan memanfaatkan sampah botol plastik menjadi alat yang berguna dalam menerapkan teknologi sederhana. Hasil dari kegiatan menunjukkan antusiasme dan keterlibatan aktif masyarakat dalam proses pembuatan dan penerapan irigasi tetes, serta adanya potensi keberlanjutan teknologi ini dalam mendukung pertanian lokal dan pengelolaan sampah berbasis masyarakat.
Pengembangan Roll Burnishing dengan Penambahan Bola Bearing pada Kualitas Permukaan Hasil Pembubutan Mild Steel ST37 Patulak, Frengky Sulo; Musa Bondaris Palungan; Nitha
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol. 7 No. 1 (2025): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v7i1.28432

Abstract

The turning process is a primary method in the manufacturing industry for producing components with high accuracy and surface quality. However, the results of turning often require additional finishing processes to achieve the desired surface roughness. This study employs the roll burnishing technique with the addition of ball bearings to enhance the surface quality of mild steel (ST37) after turning. The research analyzes the effects of spindle speed variation (70–1255 RPM) and depth of cut (0.2–1.4 mm) on surface roughness, as well as the correlation between these two parameters. The methods used include experiments with parameter variations, surface roughness measurements using a Surface Roughness Tester, and statistical analysis through linear regression and ANOVA using SPSS. The results indicate that spindle speed significantly affects surface roughness (R² = 0.758), with higher speeds reducing roughness. The depth of cut also has a strong influence (R² = 0.911), with increased depth reducing roughness. The combination of both parameters explains 74.4% of the variation in surface roughness. These findings provide practical guidance for the industry to optimize roll burnishing parameters to improve surface quality and production efficiency.
Co-Authors Fikran Lembang, Suri Toding Musa Bondaris Palungan Nofrianto Pasae Patulak, Frengky Sulo Sampelawang, Petrus Yafet Bontong