Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Jatmoko"'
Publikováno v:
Rekayasa Mesin, Vol 15, Iss 1, Pp 339-346 (2024)
Welding is a metal joining process with filler or without filler. The welding method is also used to thicken the surface of the material or hardfacing. Hardfacing is a welding process with the aim of improving mechanical properties and is used on wor
Externí odkaz:
https://doaj.org/article/655bbfa281d1496c8b2fab01d7c4d5b7
Publikováno v:
Specta, Vol 7, Iss 2 (2023)
The development of technology and science is multiplying, so it affects the industrial sector in Indonesia, namely the industry that manufactures machine elements, especially in the automotive sector, which commonly uses metal as raw material. The ma
Externí odkaz:
https://doaj.org/article/cd0146efeb1c43a98b3a3ce1e75dda2d
Autor:
Lisda Yanti, Daffa Irsyad Darma, Muhammad Rifani, Gusti Umindya Nur Tajalla, Jatmoko Awali, Yusairie Mohd, Yunita Triana
Publikováno v:
Specta, Vol 7, Iss 2 (2023)
Pada penelitian ini, ekstrak ranting Karamunting (Rhodomystus tementosa) digunakan sebagai inhibitor alami pada baja AISI 1040. Berdasarkan hasil analisis gugus fungsi, dikonfirmasi bahwa senyawa yang ditemukan didalam ekstrak ranting Karamunting yai
Externí odkaz:
https://doaj.org/article/4892f6728e584f5cb9ff529da338839d
Publikováno v:
Specta, Vol 7, Iss 1 (2023)
In this paper, the combination of shielded metal arc welding (SMAW) and gas tungsten arc welding (GTAW) welding methods are used in a double V groove SS304 10 mm thick plate. Welding current variation of 110A SMAW/120A GTAW, 100A SMAW/130A GTAW, and
Externí odkaz:
https://doaj.org/article/b369fb71a45d49bc85ff1d20f029983b
Publikováno v:
Specta, Vol 7, Iss 1 (2023)
This research uses shielded metal arc welding (SMAW) welding method combined with flux core art welding (FCAW) welding method using ASTM A36 10 mm steel material and using double V seam. Then the electrode used in this study is for SMAW E7018 welding
Externí odkaz:
https://doaj.org/article/fd0b78e896b847a28ef36100859a8e52
Autor:
Jatmoko Awali, Fahmi Rudiyanto, Somalinggi Thesalonicha, Muthia Putri Darsini Lubis, Rifqi Aulia Tanjung, Yunita Triana
Publikováno v:
Rekayasa Mesin, Vol 12, Iss 2, Pp 421-432 (2021)
This study aims to determine the effect of variations of the current with combining two welding techniques SMAW and FCAW in double v-groove against the hardness and microstructure of the dissimilar material of JIS G3101-SS400 and ASTM A36. JIS G3101
Externí odkaz:
https://doaj.org/article/0fc6b35182e947f3b2462af8f252a7db
Autor:
Widiyatno, Fanny Hidayati, Suryo Hardiwinoto, Sapto Indrioko, Susilo Purnomo, Jatmoko, Naoki Tani, Mohammad Naiem
Publikováno v:
Forest Science and Technology, Vol 16, Iss 4, Pp 206-215 (2020)
The selection of species for enrichment planting that involves native species in a secondary lowland dipterocarps forest as one of the tropical rainforest types should be conducted to maintain the sustainable management of tropical rainforests. The r
Externí odkaz:
https://doaj.org/article/32f6faefbcb64c3d90ba87941d800652
Publikováno v:
Rekayasa Sipil, Vol 13, Iss 3, Pp 193-198 (2019)
In 2013, The Ministry of Forestry revealed that the need for wood as material for construction was always increasing. In order to find the innovations regarding timber structure, this study was conducted to discover the flexural strength of gelam and
Externí odkaz:
https://doaj.org/article/35722e8ed57d4e10b3583dd35d7a99bc
Publikováno v:
Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement), Vol 4, Iss 1, Pp 1-10 (2018)
Metal recycling is an effective way to deal with the abundance of scrap metal such as drink can, scrap iron and others. Metal recycling skill is needed by the community especially in the youth to help reduce the amount of scrap metals in the environm
Externí odkaz:
https://doaj.org/article/2202f1ea10904a0d80f7227b99d54120
Autor:
Widiyatno Widiyatno, Soekotjo Soekotjo, Hatma Suryatmojo, Haryono Supriyo, Susilo Purnomo, Jatmoko Jatmoko
Publikováno v:
Jurnal Manusia dan Lingkungan, Vol 21, Iss 1, Pp 50-59 (2014)
ABSTRAK Tebang pilih merupakan salah satu sistem silvikultur yang dikembangkan untuk mengelola hutan hujan tropis di Indonesia. Sistem ini didasarkan pada limit diameter, jumlah tegakan tinggal untuk rotasi berikutnya dan keberhasilan permudaan alam
Externí odkaz:
https://doaj.org/article/e050d37a70374f9e8bde2ecffdd23724