Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Alfiana Adhitasari"'
Autor:
Bambang Soeswanto, Rony Pasonang Sihombing, Joko Suryadi, Tri Hariyadi, Tifa Paramitha, Yusmardhany Yusuf, Alfiana Adhitasari
Publikováno v:
Kovalen: Jurnal Riset Kimia, Vol 9, Iss 3, Pp 224-231 (2023)
This paper studies the optimal ratio that gives the highest caffeine amount and improves the efficiency and quality of extraction from Arabica Gayo coffee beans. No previous studies have explored the best ratio of Gayo Arabica coffee beans to ethyl a
Externí odkaz:
https://doaj.org/article/1e4f098902324d7a9fe466089fe3c20f
Autor:
Ninik Lintang Edi Wahyuni, Rony Pasonang Sihombing, Nurcahyo, Agustinus Ngatin, Yunus Tonapa Sarungu, Alfiana Adhitasari, Bambang Soeswanto, Emma Hermawati Muhari, retno indarti
Publikováno v:
Kovalen: Jurnal Riset Kimia, Vol 9, Iss 2, Pp 107-112 (2023)
Papaya leaf extract could be used as an organic corrosion inhibitor. Corrosion inhibitors were used as a method to reduce corrosion rate. The most corrosive environment was the marine environment. The purpose of this study was to determine the best c
Externí odkaz:
https://doaj.org/article/186bf40291ae4d15904dd75fa2d7b2e4
Autor:
Emma Hermawati, Yunus Tonapa Sarungu, Bambang Soeswanto, Rispiandi, Alfiana Adhitasari, Sudrajat Harris Abdulloh, Rony Pasonang Sihombing, Retno Indarti
Publikováno v:
Kovalen: Jurnal Riset Kimia, Vol 8, Iss 2, Pp 165-170 (2022)
Organic inhibitors in the corrosion process could be obtained from water hyacinth plant. This plant contained antioxidants such as saponins, which could bind to protective metals from corrosion. The objective of this study was to observe the corrosio
Externí odkaz:
https://doaj.org/article/eafa7276a9c84dd9af7560949ee3a8fb
Autor:
Alfiana Adhitasari, Eko Andrijanto
Publikováno v:
Jurnal Teknik Kimia dan Lingkungan, Vol 4, Iss 2, Pp 128-132 (2020)
Air tanah merupakan andalan sumber mata air bagi masyarakat pada umumnya, beberapa sumber air tanah sering dijumpai air yang masih terkandung Fe, hal tersebut berdampak buruk bagi kesehatan oleh karena itu perlu dilakukan penuruan kadar Fe pada air s
Externí odkaz:
https://doaj.org/article/a8f2c6e3c2064707a06b7c5a6bbef4fb
Publikováno v:
Reaktor, Vol 17, Iss 3, Pp 140-144 (2017)
Abstract KINETIC STUDY OF GLYCEROL CARBONATE SYNTHESIS FROM GLYCEROL AND UREA USING INDION 225 Na AS CATALYST. The using of biodiesel as an alternative energy source that is renewable causes the increasing of glycerol as byproduct of biodiesel produ
Externí odkaz:
https://doaj.org/article/06b5e7d0fd9543558040c3cfb6b0aa3f
Publikováno v:
Fluida. 16:49-56
This research aims to find out the characteristics of Ficus carica L. drying process using a tray dryer and determine the effect of temperature and drying time on Ficus Carica L. flavonoid content using a tray dryer to obtain Ficus carica L. herbal l
Publikováno v:
Fluida. 15:22-29
Penggunaan minyak pelumas dalam industri sebagai bahan untuk melindungi mesin dari gesekan dengan komponen lain menghasilkan limbah yang sifatnya mudah terbakar dan meledak apabila salah dalam pengelolaan dan pembuangannya, sehingga dapat membahayaka
Autor:
Tindy Rahmadi Putri, Alfiana Adhitasari, Vita Paramita, Mohamad Endy Yulianto, Hermawan Dwi Ariyanto
Publikováno v:
Materials Today: Proceedings.
Autor:
Eko Andrijanto, Alfiana Adhitasari
Publikováno v:
Jurnal Teknik Kimia dan Lingkungan, Vol 4, Iss 2, Pp 128-132 (2020)
Air tanah merupakan andalan sumber mata air bagi masyarakat pada umumnya, beberapa sumber air tanah sering dijumpai air yang masih terkandung Fe, hal tersebut berdampak buruk bagi kesehatan oleh karena itu perlu dilakukan penuruan kadar Fe pada air s
Autor:
Emma Hermawati Muhari, Fitria Yulistiani, Tifa Paramitha, Herawati Budiastuti, Irwan Hidayatulloh, Alfiana Adhitasari
Publikováno v:
Proceedings of the 1st International Conference on Social Science, Humanities, Education and Society Development, ICONS 2020, 30 November, Tegal, Indonesia.