Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Syamsul Bahtiar"'
Publikováno v:
Jurnal Pijar MIPA (Pengkajian Ilmu dan Pengajaran Matematika dan Ilmu Pengetahuan Alam), Vol 18, Iss 6, Pp 959-963 (2023)
Iron sand generally contains minerals such as ilmenite, magnetite, and hematite. Based on the results of previous tests, the main composition of iron sand in Rhee, Sumbawa regency, is magnetite. One method to increase the Fe content in iron sand is b
Externí odkaz:
https://doaj.org/article/bc2b80ac0d604d0e82741428dcb4e54f
Publikováno v:
Jurnal Pijar MIPA (Pengkajian Ilmu dan Pengajaran Matematika dan Ilmu Pengetahuan Alam), Vol 17, Iss 6, Pp 793-799 (2022)
Kirinyuh leaves (Chromolaena Odorata) contain alkaloids, saponins, flavonoids, phenols, and tannins with the potential as a natural inhibitor that can be used to inhibit the rate of corrosion. Kirinyuh leaf extract inhibitors were added at various co
Externí odkaz:
https://doaj.org/article/b785d20e7c3c44d7bf0ed0bf40ba732b
Autor:
Ahmad Taufiq, Syamsul Bahtiar, Rosy Eko Saputro, Defi Yuliantika, Arif Hidayat, Sunaryono Sunaryono, Nurul Hidayat, Samian Samian, Siriwat Soontaranon
Publikováno v:
Heliyon, Vol 6, Iss 7, Pp e04577- (2020)
Mn1-xZnxFe2O4 ferrofluids were produced from natural sand for magnetic sensors and radar absorbing materials. The X-ray diffraction data showed that the Zn partially substituted the Mn and Fe ions to construct a spinel structure. The increasing Zn co
Externí odkaz:
https://doaj.org/article/d836ef85b7c34df99e194dddd68dc157
Autor:
Fauzi Widyawati, Syamsul Bahtiar, Rita Desiasni, Lalu Suhaimi, Emsal Yanuar, I Putu Widiantara
Publikováno v:
Bima Abdi: Jurnal Pengabdian Masyarakat. 3:22-29
Sampah plastik merupakan sampah yang paling sering dijumpai, salah satunya di lingkungan sekolah, bahkan terkadang keberadaannnya tidak dihiraukan. Sehingga, menyebabkan jumlah sampah plastik meningkat setiap harinya. Peningkatan jumlah sampah plasti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75c211d6147dc555b7b33e0369233048
https://doi.org/10.53299/bajpm.v3i1.262
https://doi.org/10.53299/bajpm.v3i1.262
Publikováno v:
Hexagon Jurnal Teknik dan Sains. 3:29-33
Salah satu sumber daya alam bijih mangan terbesar di Indonesia terdapat di Kab. Sumbawa Besar dan memiliki kadar mangan tinggi. Bijih mangan dapat dimanfaatkan dalam bentuk senyawa manganese ferrite. Sintesis manganese ferrite (MnFe2O3) terdiri dari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f59c24f00029a9236b47439aa4a5cbb
https://doi.org/10.36761/hexagon.v3i1.1345
https://doi.org/10.36761/hexagon.v3i1.1345
Publikováno v:
Jurnal TAMBORA. 5:50-55
Most of the coal is used as fuel in power plants,cement industry and metal processing industry. Use of coal as fuelwill depend on the quality of the coal used. The main parameters thatdetermining the quality of coal is the calorific value. Meanwhile,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::274e0dfa7d93cfb99a8a77c1e95c9df9
https://doi.org/10.36761/jt.v5i3.1316
https://doi.org/10.36761/jt.v5i3.1316
Publikováno v:
Jurnal Pijar Mipa. 16:406-410
Flotasi merupakan proses ekstraksi logam berdasarkan perbedaan tegangan permukaan dari mineral di dalam air dengan cara mengapungkan mineral ke permukaan. Faktor yang mempengaruhi nilai perolehan kembali Tembaga antara lain ditentukan oleh ukuran par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6231b293d63d8303818c28e4a182c7b
https://doi.org/10.29303/jpm.v16i3.1308
https://doi.org/10.29303/jpm.v16i3.1308
Publikováno v:
Jurnal Pijar Mipa. 16:393-396
Study of nickel leaching using sulfuric acid and phosphoric acid on the selectivity of low-grade laterite nickel ore under atmospheric conditions has been successfully carried out. In this study, the laterite nickel leaching process was carried out b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::134a4d86d47dcffa32f09a5220164c81
https://doi.org/10.29303/jpm.v16i3.2602
https://doi.org/10.29303/jpm.v16i3.2602
Autor:
Ahmad Taufiq, Nurul Hidayat, Arif Hidayat, Sunaryono Sunaryono, Siriwat Soontaranon, Syamsul Bahtiar
Publikováno v:
Materials Today: Proceedings. 44:3229-3232
This paper reports the synthesis of a series of nanosized titanomagnetite particles from iron sand in the system of TixFe3-xO4 (x ranges from 0 to 0.5). The titanomagnetite particles were prepared by the coprecipitation method. It was found that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3f38fba85dd6a2b1ee58b69d1394840
https://doi.org/10.1016/j.matpr.2020.11.444
https://doi.org/10.1016/j.matpr.2020.11.444
Publikováno v:
Metal Indonesia. 44:18
Air laut merupakan media korosi yang paling mudah mengkorosi material, terutama baja. Pada industri perkapalan, sebagian besar konstruksi kapal terbuat dari material baja yang akan kontak langsung dengan air laut dalam waktu yang lama. Seringkali kor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76ef38ac94ce89f9f20e473b649334b1
https://doi.org/10.32423/jmi.2022.v44.18-26
https://doi.org/10.32423/jmi.2022.v44.18-26