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Autor:
Abdelhaffez, Azza S.1 (AUTHOR), Abd El-Aziz, Ebtihal A.1 (AUTHOR), Tohamy, Maha B.1 (AUTHOR), Ahmed, Asmaa M.2 (AUTHOR)
Publikováno v:
Archives of Physiology & Biochemistry. Dec2023, Vol. 129 Issue 4, p854-869. 16p.
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 37, Iss 4, Pp 109-117 (2022)
This study uses linear programming to develop a methodology for selecting the best raw material mix in an ASCOM cement plant in Egypt. In cement factories, this type adheres to Egyptian chemical composition criteria for raw feed (e.g. 82.5% calcium c
Externí odkaz:
https://doaj.org/article/f4960a23ad774115b71f24706818f2b7
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 37, Iss 2, Pp 171-177 (2022)
The size of grinding media is the primary factor that affects the overall milling efficiency of a ball mill (e.g. power consumption and particle size breakage). This article tackles the lack of a design tool that could help choose the ball loading co
Externí odkaz:
https://doaj.org/article/b767e5cd635049dd9ee5239df33b1120
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 37, Iss 3, Pp 139-148 (2022)
Ultrafine particles resulting from the grinding operations of phosphate ore cause problems of air pollution, and of the beneficiation plants particularly, flotation cells and filtration units. Particles of less than 38 μm are one of the undesirable
Externí odkaz:
https://doaj.org/article/9f9e125556a549f49ae8926b2971cd6f
Autor:
Nashwa Abd El-Aziz, Salah Khallaf, Waleed Abozaid, Ghada Elgohary, Ola Abd El-Fattah, Mai Alhawari, Safaa Khaled, Azza AbdelHaffez, Ehab Kamel, Sherif Mohamed
Publikováno v:
BMC Cancer, Vol 20, Iss 1, Pp 1-8 (2020)
Abstract Background The distress thermometer (DT) is an effective tool for identifying distress among cancer patients worldwide. However, DT has not been studied in Egyptian patients. We aimed to study the prevalence of distress among Egyptian patien
Externí odkaz:
https://doaj.org/article/4622cb7527dc4c36b51e6065b65fecaa
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 35, Iss 1, Pp 49-63 (2020)
Rock support systems have become widely dominant components in underground hard rock mines. They are used to maintain the stability of underground openings and reinforce disturbed rock masses after creating an excavation or starting mining activity.
Externí odkaz:
https://doaj.org/article/a905de043e0a49fb874672cd947a6651
Autor:
Gamal S. Abdelhaffez
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 35, Iss 1, Pp 111-121 (2020)
The grinding process in industrial ball mills is the basic unit and most energy-consuming component. Therefore, great economic gains will be achieved if a slight improvement occurs in the efficiency of grinding. The variation of gold ore petrography
Externí odkaz:
https://doaj.org/article/e22e3521bcbd41eba4e1788489872de2
Publikováno v:
Mathematics, Vol 11, Iss 5, p 1162 (2023)
Analysis of the electromechanical-size-dependent bending of piezoelectric composite structural components with flexoelectricity has been considered by many researchers because of the developments of nanotechnology and the applicability of piezoelectr
Externí odkaz:
https://doaj.org/article/aa3a19a5969a4040b3fda01e6d28ec76
Publikováno v:
Mathematics, Vol 11, Iss 2, p 409 (2023)
Coated functionally graded materials (FGMs) are used in several industrial structures such as turbine blades, cutting tools, and aircraft engines. Given the need for analytical and numerical analysis of these complex structures, a mathematical model
Externí odkaz:
https://doaj.org/article/fe1ff9066cf14975b2355a9235c61f97