Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Randa M. Osman"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Biodiesel is rapidly becoming an efficient substitute for fuel and a potentially significant future renewable energy source. In recent years, used cooking oil has been used as a feedstock for biofuel to reduce production costs. Due to its hi
Externí odkaz:
https://doaj.org/article/8bc5b820063046f38f47f1515df73661
Publikováno v:
Cleaner Engineering and Technology, Vol 4, Iss, Pp 100156-(2021)
This study aimed to investigate the effect of sealing on improvement of optical characteristics of black anodized aluminum that was first anodized and re-anodized. Various types of selective coatings were studied, nano-porous anodized aluminum was bl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecdcbd14fd409cd79196aae7260baad0
http://www.sciencedirect.com/science/article/pii/S2666790821001166
http://www.sciencedirect.com/science/article/pii/S2666790821001166
Autor:
Randa M. Osman, Mahdi Seyedsalehi, Ombretta Paladino, Gassan Hodaifa, Parisa Sharifi, Elba Villegas
Publikováno v:
Open Journal of Geology. :1094-1109
The present work aims to study the drought stress effects on polyamine content and its relationship with growth and development in seeds, during cell division (from the beginning and until 17 days after pollination) and grain filling (until reaching
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0708517f33877f90ff687cb9ab65d12f
https://doi.org/10.4236/ojg.2017.78073
https://doi.org/10.4236/ojg.2017.78073
Publikováno v:
Journal of Building Engineering. 32:101765
Rice husk (RH) is produced in large quantities in Egypt and burned in open atmosphere to produce RH ash (RHA), which poses a great risk to the environment by affecting the land and the surrounding areas in which it is disposed of. Consequently, this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b26536a8a67ad9182d839f8020e9f442
https://doi.org/10.1016/j.jobe.2020.101765
https://doi.org/10.1016/j.jobe.2020.101765
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 122:81-88
The effect of fired drinking water sludge (FDWS) as a mineral admixture on the physico-mechanical properties and the fire resistance of pozzolanic cement pastes has been investigated. Five blends of ordinary Portland cement, blast-furnace slag (GBFS)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59e31bf580b2b88bc325e79df4c706d9
https://doi.org/10.1007/s10973-015-4691-0
https://doi.org/10.1007/s10973-015-4691-0
Publikováno v:
American Journal of Engineering and Applied Sciences. 8:263-274
Pozzolana is defined as a siliceous or siliceous and aluminous materials which in itself possess little or no cementing properties, but will in a finally divided form and in the presence of moisture react with Ca(OH)2 at ordinary temperature to form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7745e04ce5e3288d3de4df7a0b03e3ba
https://doi.org/10.3844/ajeassp.2015.263.274
https://doi.org/10.3844/ajeassp.2015.263.274
Autor:
S. Al-Masry, Randa M. Osman
Publikováno v:
American Journal of Engineering and Applied Sciences. 8:249-262
This work aimed to study the effect of the dosage of laboratory synthesized Sulfonated Acetone Formaldehyde (SAF) on the physic-mechanical characteristics and durability of SF-SRC cement pastes immersed in 4% MgCl2 or 4% MgSO4 solutions or at elevate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e01cbfe768e46556f868143b0c92976c
https://doi.org/10.3844/ajeassp.2015.249.262
https://doi.org/10.3844/ajeassp.2015.249.262
Autor:
Randa M. Osman
Publikováno v:
Open Journal of Chemical Engineering and Science. 1:50-78
Anaerobic Digestion is a series of chemical reactions during which organic material is decomposed through the metabolic pathways of naturally occurring microorganisms in an oxygendepleted environment. In nature this type of breakdown typically occurs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::454b4ee517b4e771d1fefe24968b37cf
https://doi.org/10.15764/ojces.2014.01005
https://doi.org/10.15764/ojces.2014.01005
Publikováno v:
Polymer Composites. 35:174-179
A mixture of different types of clay was blended with rice straw (RS) and microcrystalline cellulose (MCC) in the presence or absence of cement kiln dust (CKD) to produce new types of brick. The ratios of RS and MCC were 0, 5, and 10% w/w in the abse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2568b26321e2f9659f696e2803f2e2be
https://doi.org/10.1002/pc.22647
https://doi.org/10.1002/pc.22647
Publikováno v:
Ceramics International. 38:201-209
This work aims to study the effect of substitution of fly ash for homra on the hydration properties of composite cement pastes. The composite cements are composed of constant proportion of OPC (80%) with variable amounts of fly ash and homra. The add
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e2e10ae1580173554e22b7dea517e30
https://doi.org/10.1016/j.ceramint.2011.06.050
https://doi.org/10.1016/j.ceramint.2011.06.050