Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal JURNAL HUTAN LESTARI Proceeding SENDI_U Jurnal Tanah dan Iklim
. SUPARTO
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Education

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
METODE SIX SIGMA UNTUK MENINGKATKAN PRODUKTIVITAS PADA PRODUK ELEMENT BOILER DI PT. XYZ Purnama, Jaka; Suparto, .; Christa Dinata, Pramudia
Proceeding SENDI_U 2016: SEMINAR NASIONAL MULTI DISIPLIN ILMU DAN CALL FOR PAPERS
Publisher : Proceeding SENDI_U

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT. XYZ merupakan perusahaan manufaktur yang memiliki kapabilitas dalam pembuatan boiler maupunkomponen-komponen penyusun boiler. Pelaksanaan proyek LNK unit 2, ternyata tidak dapat mencapai peningkatanproduktivitas yang harapan perusahaan sesuai dengan perencanaan kerja. Penyebab tidak tercapainya peningkatanindeks produktivitas disebabkan oleh jumlah produk cacat/defect berada di atas batas standar dari defect yangditentukan oleh perusahaan. Metode Six Sigma dengan siklus DMAIC, berdasarkan analisis data terjadi peningkatanindeks produktivitas proyek LNK Unit 2 terhadap LNK Unit 1 sebesar 2.98%. Terjadi penurunan COPQdibandingkan antara proyek LNK Unit 1 dengan LNK Unit 2 sebesar 3.79%. Perbedaan nilai menunjukkan adanyaindikasi bahwa pengalokasian biaya kualitas untuk COGQ dan COPQ kurang berjalan efektif dan efisien. Hasilevaluasi menggunakan Productivity Evaluation Tree, hasil ΔTPit untuk produktivitas total dan parsial yang hasilnyaadalah negative, berarti peningkatan indeks produktivitas pada proyek LNK Unit 2 belum sesuai dengan harapanperusahaan. Hasil pengukuran baseline kinerja kualitas pada data atribut dan variable saat ini, ditemukan sigma leveldi bawah 4.00 yang menjadi prioritas perbaikan, karena untuk masing-masing jenis defect potensial yang berhasildiidentifikasi pada Element Bending, Element Bundling, dan Element Assembly SET, dipilih RPN tertinggi untukdapat diimplementasikan dan dapat dijadikan sebagai standar kerja pada proyek berikutnya.Kata Kunci : Produktivitas, Six Sigma, Siklus, DMAIC
PEMANFAATAN NIPAH (Nypa frutican Wurmb) DI DUSUN SUKA MAJU DESA SUNGAI SEPETI KECAMATAN SEPONTI KABUPATEN KAYONG UTARA Suparto, .; Oramahi, H A; Sisillia, Lolyta
JURNAL HUTAN LESTARI Vol 7, No 1 (2019): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v7i1.31422

Abstract

Nipah is one of the non-timber forest products whose all the part of the plant can be utilized. This research aimed to find out the information on various forms of utilization of nipah by the community of Suka Maju hamlet in Sungai Sepeti village Kayong Utara regency. This study used a descriptive method with direct interview technique to a number of respondents to get response. Sampling was perfomed with snowball sampling method. The results showed that the community of Suka Maju Hamlet of Sungai Sepeti village in Seponti Subdistrict of Kayong Utara Regency utilized 5 parts of the nipah namely leaves, shoots, sticks, fruit, and flowers. Using The parts of the nipah, people can use its leaves as roof or as raw building material,  nipah shoots for making of art craft woven mats, rice countainer, and cigarette, sticks on the sticks for making brooms, the fruit for making kolang kaling, an the flower can be consumed and used as a temporary treatment for fever.Keywords: Nipah, Snowball Sampling, Suka Maju Hamlet, Utilization
Enhancing the Reactivity of Phosphate Rocks by Acidulation . SULAEMAN; . SUPARTO; . EVIATI
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 20 (2002): Desember 2002
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n20.2002.%p

Abstract

Indonesian soils requiring a considerably large amount of P fertilizer, since it comprises a large area of phosphate poor soils as Ultisols, Oxisols, and part of Inceptisols. Phosphate rock, particularly of domestic origin, is one of cheapest P sources if it can be applied directly. Acidulation is performed to obtain sufficiently reactive phosphate rocks to give dissolved P (in weak acid) required by annual crops, although not too soluble (in water) to easily leach. The objective of this study was to obtain an efficient P source fertilizer with inexpensive production cost. Eight types of phosphate rocks of domestic and overseas origins were gradually acidulated with sulphuricand phosphoric acids. P fertilizers reactivity were tested by using extracted P content in water, citric acid, and formic acid to total P content ratio. The results showed that the reactivity (in citric acid) orders of tested phosphate rocks were Ciamis > Cileungsi > Algeria > Gresik > Maroko > Sukabumi >Christmas > Senegal. Based on gained regression equation, total P content and reactivity of produced fertilizer for each degree of acidulation with H2SO4 and H3PO4 can be calculated. Water extractant gives the most sensitive indicator value of increased reactivity, followed by citric and formic acids.
Co-Authors . EVIATI . Sulaeman Christa Dinata, Pramudia Hasan Ashari Oramahi Lolyta Sisillia SATRIYAS ILYAS