Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Umar Kalmar"'
Autor:
Nizar, Umar Kalmar1 umarkn@fmipa.unp.ac.id, Gunawan, Rizki1, Hin, Taufiq Yap Yun2,3, Sundari, Rita4, Bin Mahmud, Surahim3, Ibrahim, Siti Fadhilah Binti3, Sazali, Nawirus1, Sintia, Amelia1, Lazuardi, Arrum1, Pernadi, Niza Lian1
Publikováno v:
Rasayan Journal of Chemistry. Jul-Sep2023, Vol. 16 Issue 3, p1993-2001. 9p.
Autor:
Sherly Kasuma Warda Ningsih, Umar Kalmar Nizar, Bahrizal Bahrizal, Edi Nasra, Siti Fatimah Mutiara R
Publikováno v:
Jurnal Riset Kimia, Vol 12, Iss 1, Pp 27-35 (2021)
Mg2+ doped ZnO has been successfully synthesized using a combination of sol-gel and sonochemical methods. Zinc acetate dihydrate was used as a precursor, magnesium chloride hexahydrate as a source of Mg dopant, methanol as a solvent, and chicken albu
Externí odkaz:
https://doaj.org/article/309d6926166f48a58c9382978437e575
Publikováno v:
AIP Conference Proceedings; 2024, Vol. 2982 Issue 1, p1-7, 7p
Publikováno v:
Jurnal Pendidikan MIPA. 23:256-265
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4608592826855ecba2872efb8b68ba67
https://doi.org/10.23960/jpmipa/v23i1.pp256-265
https://doi.org/10.23960/jpmipa/v23i1.pp256-265
Publikováno v:
Jurnal Pendidikan MIPA. 23:866-879
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91bc6c6f52ade321320e02f1ae8ed45a
https://doi.org/10.23960/jpmipa/v23i2.pp866-879
https://doi.org/10.23960/jpmipa/v23i2.pp866-879
Autor:
Suryelita Sury, Hary Sanjaya, Indang Dewata, Ali Amran, Muhammad Hiknul Ikhsan, Umar Kalmar Nizar, Isva Abdul Ghani
Publikováno v:
PRIMER (Prima Medical Journal). 4:1-6
Pada penelitian ini digunakan katalis asam padat berbasis karbon ampas teh tersulfonasi dalam proses produksi biodiesel. Penelitian ini bertujuan untuk mensintesis katalis asam padat, mengkarakterisasi sifat fisikokimia katalis, dan menguji aktivitas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59dfbee7ef7984159007ee617d07f1d6
https://doi.org/10.34012/pmj.v4i2.1950
https://doi.org/10.34012/pmj.v4i2.1950
Publikováno v:
PRIMER (Prima Medical Journal). 4:12-16
Katalis karbon kulit ubi kayu dapat digunakan dalam produksi biodiesl dari PFAD. Katalis ini digunakan karena mudah dipisahkan dengan produk biodiesel yang dihasilkkan dan dapat digunakan kembali. Produksi biodiesel dilakukan dengan variasi waktu sel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1be57eb29f5b74de3e14ab5d0e5033a
https://doi.org/10.34012/pmj.v4i2.1952
https://doi.org/10.34012/pmj.v4i2.1952
Autor:
Desy Kurniawati, Sri Benti Etika, Umar Kalmar Nizar, Ayu Nidafauziah, M. Iqbal Saputra Gemasih
Publikováno v:
PRIMER (Prima Medical Journal). 4:7-11
Penelitian ini bertujuan sebagai pengelolahan limbah organik sebagai sumber karbon. Karbon merupakan suatu material yang diproduksi dengan memanfaatkan limbah organik sehingga bermanfaat dan bernilai ekonomis. Limbah organik merupakan limbah padat ya
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83763778d393d02a650845a2a5c217b0
https://doi.org/10.34012/pmj.v4i2.1953
https://doi.org/10.34012/pmj.v4i2.1953
Publikováno v:
In Chemical Engineering Journal 15 April 2013 222:23-31
Autor:
Edi Nasra, Siti Fatimah Mutiara R, Sherly Kasuma Warda Ningsih, Umar Kalmar Nizar, Bahrizal Bahrizal
Publikováno v:
Jurnal Riset Kimia, Vol 12, Iss 1, Pp 27-35 (2021)
Mg2+ doped ZnO has been successfully synthesized using a combination of sol-gel and sonochemical methods. Zinc acetate dihydrate was used as a precursor, magnesium chloride hexahydrate as a source of Mg dopant, methanol as a solvent, and chicken albu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b5e7548308aa6b0f4f409ef62ec4231
https://doi.org/10.25077/jrk.v12i1.374
https://doi.org/10.25077/jrk.v12i1.374