Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Evi Yufita"'
Autor:
Malahayati Malahayati, Evi Yufita, Ismail Ismail, Mursal Mursal, Rinaldi Idroes, Zulkarnain Jalil
Publikováno v:
Journal of Ecological Engineering, Vol 22, Iss 11, Pp 79-85 (2021)
The characteristics of MgH2 as a hydrogen storage material in this study were observed by varying the composition of the catalyst. The added catalyst was a dual catalyst, namely nickel and natural silica extracted from rice husk ash with a compositio
Externí odkaz:
https://doaj.org/article/b7967b12c3ec4ff694cd407c9b546f26
Autor:
Malahayati Malahayati, Evi Yufita, Ismail Ismail, Mursal Mursal, Rinaldi Idroes, Zulkarnain Jalil
Publikováno v:
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 16, Iss 2, Pp 280-285 (2021)
MgH2 is a very hopeful material for application as hydrogen storage material in the solid form. This is due to its reversibility and its ability to store large amounts of hydrogen, which is 7.6 wt%. However, this material still has weaknesses, namely
Externí odkaz:
https://doaj.org/article/3b980159259b4602be521d6ff3098ca3
Publikováno v:
Journal of Aceh Physics Society, Vol 9, Iss 1, Pp 20-25 (2020)
Kandungan senyawa kimia air sangat berguna dalam penentuan karakteristik fluida panas bumi terutama sumbernya dan arah aliran fluida tersebut. Oleh karena itu dilakukan penelitian untuk mengkaji senyawa kimia air yang terkandung pada lapangan panas b
Externí odkaz:
https://doaj.org/article/fe852d39475945b8a24770192ba5a761
Publikováno v:
Journal of Aceh Physics Society, Vol 8, Iss 1, Pp 25-29 (2019)
Penelitian tentang pengaruh ekstrak kulit buah naga merah (Hylocereus Polyrhizus) sebagai bahan inhibitor terhadap laju korosi baja plat hitam (Base Plate) A36 dengan menggunakan metode weight loss telah dilakukan. Kulit buah naga merah berpotensi se
Externí odkaz:
https://doaj.org/article/3660f480a46e431fac3edb1be915baf8
Publikováno v:
Journal of Aceh Physics Society, Vol 7, Iss 2, Pp 67-71 (2018)
Pemanfaatan inhibitor organik untuk mengurangi laju korosi pada logam telah banyak diteliti karena ramah lingkungan dibandingkan dengan inhibitor anorganik. Dalam penelitian ini, ekstrak daun salam (Eugenia Polyantha (Wight.)Walp.) digunakan sebagai
Externí odkaz:
https://doaj.org/article/70c7f7e1ebc8464b9bf46680d95bd98b
Publikováno v:
Journal of Aceh Physics Society, Vol 7, Iss 2, Pp 98-101 (2018)
Penelitian tentang pengaruh ekstrak daun ceremai (Phyllanthus acidus (L) Skeels) sebagai bahan inhibitor terhadap laju korosi baja plat hitam (Base Plate) A36 dengan menggunakan metode weight loss telah dilakukan. Penelitian ini bertujuan untuk mengh
Externí odkaz:
https://doaj.org/article/5a7d5112d495425c99f85b044eaf7473
Publikováno v:
Journal of Aceh Physics Society, Vol 6, Iss 1, Pp 52-55 (2017)
Telah dilakukan penelitian mengenai pengaruh ekstrak daun trembesi (Samanea Saman (Jacq.) Merr.) sebagai bahan inhibitor terhadap laju korosi baja plat hitam (Base Plate) A36. Ekstrak daun trembesi digunakan sebagai inhibitor karena mengandung senyaw
Externí odkaz:
https://doaj.org/article/6bd19d07efe44fe8b887b01b3bc3a82b
Publikováno v:
Journal of Aceh Physics Society, Vol 6, Iss 1, Pp 30-33 (2017)
Studi lanjut kandungan material perekat pada tiga benteng purba di kawasan Aceh Besar, yaitu Benteng Indrapatra (BIP), Benteng Inong Balee (BIB), dan Benteng Kuta Lubok (BKL) telah dilakukan menggunakan X-Ray Diffraction (XRD). Tujuan dari penelitian
Externí odkaz:
https://doaj.org/article/8dedf5613cac4f1abc91d4cf4ff143cb
Publikováno v:
Jurnal Teknologi dan Industri Pertanian Indonesia, Vol 9, Iss 1, Pp 28-32 (2017)
Measurement of palm oil viscosity after heat treatment has been done. The sample is palm oil packaging and bulk ones Falling body method is used as an instrument to determine the coefficient of viscosity which had previously been calibrated using wat
Externí odkaz:
https://doaj.org/article/a0a3083da14b40abb7805244c7bb565c
Autor:
Rini Safitri, Evi Yufita
Publikováno v:
Jurnal Natural, Vol 17, Iss 1, Pp 45-48 (2017)
Early detection of breast cancer is the first step in prevention that can be done by women, therefore when one is diagnosed with breast cancer, the appropriate treatment can be performed quickly and accurately. Early diagnosis of breast cancer can be
Externí odkaz:
https://doaj.org/article/aaedd3dbe146424ebc7587db74c2b18f