Zobrazeno 1 - 10
of 35
pro vyhledávání: '"David Candra Birawidha"'
Autor:
Irza Sukmana, Yusup Hendronursito, Shirley Savetlana, Kusno Isnugroho, Muhammad Amin, David Candra Birawidha
Publikováno v:
International Journal of Technology, Vol 13, Iss 4, Pp 870-879 (2022)
Glass-ceramics were fine-grained polycrystalline materials produced by controlled crystallization in the glass phase to have outstanding characteristics. The establishment of basalt from Sukadana - Lampung Province into glass-ceramic begins with t
Externí odkaz:
https://doaj.org/article/57356a07dc304d758115853ae88b1cf9
Autor:
Yusup Hendronursito, Asep Andri Saputra, Tumpal Ojahan Rajaguguk, Slamet Sumardi, Yayat Iman Supriyatna, Kusno Isnugroho, David Candra Birawidha, Muhammad Amin
Publikováno v:
Rekayasa Mesin, Vol 12, Iss 2, Pp 391-399 (2021)
Basalt rock has great potential in Lampung Province but is only used as a building construction material. Basalt has superior characteristics such as abrasion/wear resistance, compressive strength and chemical reaction resistance making it suitable a
Externí odkaz:
https://doaj.org/article/cd66868933f14f98a97d71b808f5e8df
Autor:
David Candra Birawidha, Kusno Isnugroho, Yusup Hendronursito, Muhammad Amin, Muhammad Al Muttaqii
Publikováno v:
Jurnal Ilmiah SINERGI, Vol 25, Iss 3, Pp 299-308 (2021)
An experimental study on the manufacture of polyester resin matrix composites using basalt powder as a reinforcing filler has been carried out. Basalt is a volcanic igneous rock often found in East Lampung and has not been utilised. Basalt is chosen
Externí odkaz:
https://doaj.org/article/0a8d79102f2a4790a5a2746cd5abf404
Autor:
Muhammad Amin, David Candra Birawidha, Kusno Isnugroho, Yusup Hendronursito, Slamet Sumardi, Septa Ario, Syafriadi Syafriadi, Muhammad Al-Muttaqii
Publikováno v:
Acta Polytechnica, Vol 59, Iss 6, Pp 536-542 (2019)
This study was conducted to determine the effect of the concentration of basalt as a cement substitution material in mortar. Basalt was analysed by XRD and XRF. From the XRD results, the diffractogram shows the dominant phases, such as anorthite, aug
Externí odkaz:
https://doaj.org/article/da328ae6c60341a89cb4156c5f7dfcf7
Autor:
Yusup Hendronursito, Junita Barus, Muhammad Amin, Muhammad Al Muttaqii, Tumpal Ojahan Rajagukguk, Kusno Isnugroho, David Candra Birawidha
Publikováno v:
Journal of Degraded and Mining Lands Management, Vol 7, Iss 1, Pp 1977-1985 (2019)
Indonesia has an abundant amount of basalt rocks resources, including in East Lampung Regency of Lampung Province. This basalt has not been used optimally and only be used as a foundation. The use of basalt as soil fertilizer also known as the stone
Externí odkaz:
https://doaj.org/article/ebb6c736d7d74d798ef0f625b0a2ced4
Autor:
Muhammad Amin, David Candra Birawidha, Kusno Isnugroho, Yusuf Hendronursito, Muhammad Al Muttaqqi, Nurbaiti Marsas Prilitasari
Publikováno v:
Jurnal Presipitasi, Vol 16, Iss 2, Pp 44-52 (2019)
Desulphurization process can improve the quality of coal and reduce the environmental pollution. In this study, the method used for desulphurization process was a leaching method using wuluh starfruit extract as a leaching agent. Starfruit extract ob
Externí odkaz:
https://doaj.org/article/352831dfcc6f42898f65d54bc5565caa
Autor:
Lukman Hakim Nasution, Anggoro Tri Mursito, Widi Astuti, Fajar Nurjaman, Erik Prasetyo, David Candra Birawidha, Muhammad Amin, Tri Haryono, Mahruri Arif Wicaksono, Slamet Sumardi, Diah Susanti, Fathan Bahfie
The various aspects of coal, including its chemical composition, properties, and environmental impacts. The recent research focused on developing new technologies and processes to improve the efficiency and effectiveness of coal comminution, with a p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6180db05fd9e14bc310fad143cb974e9
https://doi.org/10.21203/rs.3.rs-2798366/v1
https://doi.org/10.21203/rs.3.rs-2798366/v1
Autor:
Yusup Hendronursito, Muhammad Amin, Muhammad Al Muttaqii, Pulung Karo Karo, Andini Yulia, David Candra Birawidha, Kusno Isnugroho
Publikováno v:
Jurnal Riset Teknologi Pencegahan Pencemaran Industri. 12:25-33
This study aims to determine the iron ore slag effect as an additive in particleboard based on the SNI 7705:2011 standard. Iron ore slag comes from the waste processing of iron ore into sponge iron. The iron ore slag is reduced to a size of 200 mesh.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::038ebb7f6ca83f987b0afcc4dc7199ae
https://doi.org/10.21771/jrtppi.2021.v12.no2.p25-33
https://doi.org/10.21771/jrtppi.2021.v12.no2.p25-33
Autor:
Slamet Sumardi, Muhammad Amin, Yusup Hendronursito, Kusno Isnugroho, Tumpal Ojahan Rajaguguk, Yayat Iman Supriyatna, Asep Andri Saputra, David Candra Birawidha
Publikováno v:
Rekayasa Mesin, Vol 12, Iss 2, Pp 391-399 (2021)
Basalt rock has great potential in Lampung Province but is only used as a building construction material. Basalt has superior characteristics such as abrasion/wear resistance, compressive strength and chemical reaction resistance making it suitable a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48e1dba60f8461b51633b5e888641050
https://doi.org/10.21776/ub.jrm.2021.012.02.16
https://doi.org/10.21776/ub.jrm.2021.012.02.16
Autor:
Kusno Isnugroho, Slamet Sumardi, Muhammad Al Muttaqqi, Frista Clarasati, Yusup Hendronursito, Roniyus Marjunus, David Candra Birawidha, Muhammad Amin
Publikováno v:
Jurnal Riset Teknologi Pencegahan Pencemaran Industri. 11:43-50
This study was aimed to increase granite's silica content using the leaching process with HCl concentration variation. The granite used in this study came from Lematang, South Lampung. This study aims to determine the effect of variations in HCl conc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75605e27ba9c7eff15b2600edcf42e6e
https://doi.org/10.21771/jrtppi.2020.v11.no2.p43-50
https://doi.org/10.21771/jrtppi.2020.v11.no2.p43-50