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All Journal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin JURNAL ILMIAH AGRINECA
S. SUTARNO
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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SALURAN PEMASARAN BAWANG PUTIH DI TAWANGMANGU KABUPATEN KARANGANYAR KHARISMA A.E.S; S. SUSWADI; S. SUTARNO
JURNAL ILMIAH AGRINECA Vol. 19 No. 1 (2019): JURNAL ILMIAH AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (296.913 KB) | DOI: 10.36728/afp.v19i1.825

Abstract

Tujuan penelitian yaitu untuk mengetahui bentuk rantai pemasaran bawang putih, mengetahui margin pemasaran di masing-masing rantai pemasaran bawang putih dan mengetahui efisiensi pemasaran dari masing-masing rantai pemasaran bawang putih di Gapoktan Ngudi Rejeki Kelurahan Kalisoro Kecamatan Tawangmangu. Hasil penelitian, terdapat dua macam saluran pemasaran bawang putih. Total biaya pemasaran saluran I sebesar Rp. 1.259,438/Kg, total keuntungan Rp. 13.740,532/Kg, total margin Rp.14.999,97/Kg, presentase margin pemasaran 26% dan farmer share 73%. Total biaya pemasaran saluran pemasaran II sebesar Rp. 128,571/Kg, total keuntungan Rp. 4.871,439/Kg, total margin Rp. 5.000,01/Kg, presentase margin peasaran 11% dan farmer share 87%. Saluran pemasaran I menunjukan nilai efisiensi pemasaran adalah 2,24 % yang artinya pemasaran pada saluran I tidak efisien karena > 1%, sedangkan Saluran II mempunyai nilai efisiensi 0,29 % yang artinya dikatakan layak karena < 1 %.
Komparasi sifat mekanik antara komposit epoksi berpenguat abu dan sekam padi M. Martijanti; S. Sutarno; R. Sukwadi; M.B. Wahyu
Dinamika Teknik Mesin Vol 13, No 2 (2023): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v13i2.649

Abstract

Indonesia is an agricultural country because most of the population works in the agricultural sector. One of them is from agricultural products, namely rice. The milled rice produces rice and rice husks. Rice is used by the people of Indonesia as a staple food. Meanwhile, rice husks and ashes have not been utilized optimally. Seeing the great potential of rice husk and ash, efforts have been made to optimize the use of rice husk and ash as composite materials. The research aimed to obtain tensile strength, bending strength and porosity analysis of each composite using 230 mesh size rice husk particles or rice husk ash. The different volume fraction variations are 25% rice husk particles or its ashes and 75% epoxy matrix for the first variation, while for the second variation, it is 40% rice husk particles or its ashes and 55% epoxy matrix. The process of making composite materials was carried out using the hand lay-up and vacuum bag method with the test sample size according to the test standards used, namely ASTM D3039 for tensile strength testing and ASTM D790-61 for bending strength testing. The results of the mechanical properties test obtained the greatest tensile strength value in the epoxy composite reinforced with rice husk ash (40% wt) of 12.73 MPa and the greatest bending strength was in the epoxy composite reinforced with rice husk (40% wt) of 63.87 MPa. Preliminary characterization of rice husk and ash-reinforced epoxy composites met SNI standards.
Co-Authors KHARISMA A.E.S M. Martijanti M.B. Wahyu R. Sukwadi Suswadi