Zobrazeno 1 - 10
of 495
pro vyhledávání: '"R. Yunus"'
Autor:
R.S.R.M. Hafriz, S.H. Habib, N.A. Raof, M.Y. Ong, C.C. Seah, S.Z. Razali, R. Yunus, N.M. Razali, A. Salmiaton
Publikováno v:
Energy Conversion and Management: X, Vol 24, Iss , Pp 100749- (2024)
Green diesel derived from sustainable biomass is an alternative and potential energy source to petroleum fossil fuel replacement in response to reducing carbon footprint and achieving a circular economy, which has sparked public interest and concern
Externí odkaz:
https://doaj.org/article/a9b92b92e9ba494aaa287b34ba95fe55
Autor:
R.S.R.M. Hafriz, I. Nor Shafizah, A. Salmiaton, N.A. Arifin, R. Yunus, Y.H. Taufiq Yap, S. Abd Halim
Publikováno v:
Arabian Journal of Chemistry, Vol 13, Iss 11, Pp 8146-8159 (2020)
In the present work, nickel (Ni), zinc (Zn), copper (Cu), cobalt (Co) and iron (Fe) are tested as catalyst dopants on Malaysian dolomite calcined at T = 900 °C (CMD900). The physicochemical properties of all synthesised catalyst are investigated by
Externí odkaz:
https://doaj.org/article/8838ede3b97b4946b39eecf020e161d2
Publikováno v:
Molecules, Vol 25, Iss 17, p 3872 (2020)
A method that delivers a high yield and excellent quality of essential oil, which retains most of its value-added compounds, and undergoes least change after the extraction process, is greatly sought after. Although chemical free methods are acceptab
Externí odkaz:
https://doaj.org/article/73af9c2ab215494aa5a9ad55847fcdfc
Publikováno v:
Jurnal Tribologi, Vol 1, Pp 18-39 (2014)
Many studies have been undertaken with a view to using chemically modified vegetable oil as a bio-based lubricant. This research focused on tribological properties of trimethylolpropane (TMP) ester, which is derived from renewable resource. This TMP
Externí odkaz:
https://doaj.org/article/9540727ee2f548bd9b32aaa45b9799ab
Autor:
A. M. Syam, U. Rashid, R. Yunus, H. A. Hamid, S. I. Al-Resayes, I. A. Nehdi, A. H. Al-Muhtaseb
Publikováno v:
Grasas y Aceites, Vol 67, Iss 1, Pp e115-e115 (2016)
This paper presents an acid pre-treatment process and a kinetic study for the esterification reaction of Oleum papaveris seminis oil with methanol in the presence of amberlite 120 as a solid catalyst to convert the oil into methyl esters. Response su
Externí odkaz:
https://doaj.org/article/f462d276991744dea560ee1795564ba5
Publikováno v:
Grasas y Aceites, Vol 63, Iss 1, Pp 35-43 (2012)
With an increasing population and economic development, fuel from renewable resources needs to be widely explored in order to fulfill the future energy demand. In the present study, biodiesel from maize oil using transesterification reactions with me
Externí odkaz:
https://doaj.org/article/f07b7a048dae438f9fa40e19106797a0
Publikováno v:
Journal of Engineering Science and Technology, Vol 4, Iss 4, Pp 400-408 (2009)
Carbon nanotubes were grown directly on carbon fibres using the chemical vapor deposition technique. The effects of reaction temperature (800-900oC) and hydrogen gas flowrate (100-300 ml/min) on the morphology of the carbon nanotube coating were inve
Externí odkaz:
https://doaj.org/article/a3a1e181d5cb4e7a98128fef522a749b
Publikováno v:
Journal of Engineering Science and Technology, Vol 3, Iss 2, Pp 138-145 (2008)
The concept of a continuous process in producing biodiesel from jatropha oil by using an Oscillatory Flow Biodiesel Reactor (OFBR) is discussed in this paper. It has been recognized that the batch stirred reactor is a primary mode used in the synthes
Externí odkaz:
https://doaj.org/article/380144fef42d41b0a0f70eecbf36d31a
Publikováno v:
Journal of Engineering Science and Technology, Vol 3, Iss 1, Pp 79-86 (2008)
In this paper the effect of hardener on mechanical properties of carbon reinforced phenolic resin composites is investigated. Carbon fibre is one of the most useful reinforcement materials in composites, its major use being the manufacture of compone
Externí odkaz:
https://doaj.org/article/b7bd8f9a2182449d82c3d61dcd5790da
Publikováno v:
Grasas y Aceites, Vol 65, Iss 1, Pp e005-e005 (2014)
In the present study the synthesis of a palm based ethylhexyl ester was examined through a transesterification reaction of palm oil methyl ester (POME) with 2-ethylhexanol (EH). A sodium methoxide in methanol solution was used as a catalyst. The reac
Externí odkaz:
https://doaj.org/article/1cb587901c414fc099e559f14b0ad954