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All Journal Jurnal Manajemen Dayasaing Journal Of Engineering Sciences (Improsci)
Setyawan, Anton
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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MANAJEMEN RANTAI PASOK KAYU GAHARU DI KALIMANTAN BARAT Herda, Stefi; Setyawan, Anton
Jurnal Manajemen Dayasaing Vol 18, No 2 (2016): Jurnal Manajemen Daya Saing
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/dayasaing.v18i2.4506

Abstract

Penulisan ini bertujuan untuk menganalisis pasokan kayu gaharu, faktor penghambatpasokan kayu gaharu, dan jumlah yang dihasilkan dari satu pohon kayu gaharu dalamsekali pemanenan. Data diperoleh dari ketua kelompok tani perkebunan di Rasau Jaya,Petugas Penyuluh Lapangan di Rasau Jaya, Kepala Kantor Cabang di Rasau Jaya, danpemilik perusahaan. Metode penelitian menggunakan metode kualitatif. Hasil penelitian menyimpulkan bahwa pasokan kayu gaharu pada bulan November 2015 sampai Agustus 2016 mengalami kekurangan bahkan kekosongan pasokan. Faktor yang menghambat ketersediaan pasokan yaitu faktor alam dan vaksin atau obat yang disuntikan ke pohon gaharu. Hasil panen yang didapat dari satu pohon gaharu sebanyak 5 kg per pohon dengan asumsi sekali panen mencapai 10 pohon gaharu dengan jumlah total kayu gaharu sebanyak 50 kg.
Making Composite Materials from Unsaturated Polyester and Coconut Fiber Judging from Mechanical Properties Nurudin, Arif; Harmi Tjahjanti, Prantasi; Setyawan, Anton
Jurnal Improsci Vol 1 No 4 (2024): Vol 1 No 4 February 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v1i4.185

Abstract

Making combined materials that consist of unsaturated polyester and coconut fiber is the target of this research. The samples were tested by tensile and hardness tests before and after warm-up, and obtained by the result was that the trend value of hardness of unsaturated polyester+coconut fiber experienced proportional degradation with the addition of the composition of coconut fiber. The composition of 3% coconut fiber+97% unsaturated polyester has the highest hardness value, reaching 46,7 kg/mm2, and downhill becomes 43,1 kgf/mm2 moment heated at a temperature of 500C for 1 hour. Analog to the tensile test, 3% coconut fiber + 97% unsaturated polyester composition has the highest ultimate tensile strength and yield point. Adding fiber can boost the elasticity modulus, but the warm-up treatment causes the expansion of coconut fiber. The result is that the value of the tensile and hardness of the polyblend will go downhill.
Co-Authors Arif Nurudin Herda, Stefi Prantasi Harmi Tjahjanti