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Your search keyword '"Ghasemi, Mohsen"' showing total 26 results
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26 results on '"Ghasemi, Mohsen"'

3. The prime-power hypothesis on the codegrees of irreducible characters.

Author

Ahanjideh, Neda, Aziziheris, Kamal, and Ghasemi, Mohsen

Subjects
*FINITE groups, *SOLVABLE groups, *HYPOTHESIS
Abstract

AbstractFor a character χ of a finite group G, the number cod(χ)=[G:Kerχ]χ(1) is called the codegree of χ. In this paper, we show that if for every non-principal irreducible characters χ and ϕ of G with cod(χ)≠cod(ϕ), the greatest common divisor of cod(χ) and cod(ϕ) is a prime-power, then either G is solvable or G/Sol(G) is isomorphic to one of the groups Alt5 or PSL2(8), where Sol(G) is the solvable radical of the group G. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Integrated Mineral Analysis of sandstone and dolomite formations using different chelating agents during matrix acidizing

Author

Shafiq, Mian Umer, Ben Mahmud, Hisham Khaled, and Ghasemi, Mohsen

Abstract

Mineral analysis plays a major role in the successful matrix acidizing as it shows the change in physiochemical changes in the formation due to the reaction with fluids injected. Mineralogy of the reservoir can be altered by injecting mineral acids during matrix acidizing. But various complications are connected during the application of these acids such as environmental hazards, corrosion of pipes and tubings, precipitation of fluosilicates and fast spending of acid. To mitigate these problems, chelating agents have been applied as an alternative by different researchers. In this study, three different chelating agents EDTA, GLDA and HEDTA were applied to stimulate sandstone and dolomite samples. The pH value of these chelates ranges from 1.7 to 3 and is measured before and after core flooding to observe physiochemical changes. Core flooding experiments under 180 °F temperature were performed at a constant flow rate of 1 ml/min on core samples having dimensions (3 inch × 1.5 inch). Porosity, permeability, Inductively Coupled Plasma (ICP), and TESCAN Integrated Mineral Analysis (TIMA) were employed to measure changes in formation properties such as morphology, topology and mineralogy. The reacted sample of acids was analyzed for sodium, potassium, calcium, aluminium, magnesium, and iron using the ICP technique to find the capability of these chelates to remove positive ions. HEDTA found to be effective in chelating iron, calcium and magnesium and it also removed some amount of aluminium ions from the sandstone samples. Permeability and porosity analysis concluded that HEDTA is more efficient in creating new big pore spaces. TIMA analysis confirms that HEDTA is effective in dissolving quartz and other positive ions while dissolved a large amount of calcium and sodium from the sandstone as compared to other chelates. TIMA analysis also concluded that HEDTA is effective in increasing porosity of sandstone formation while GLDA is effective in dolomites.

Published
2024
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5. Budgeting in Healthcare

Author

Khajavi, S., Etemedy Jooriaby, M., Kermani, E., Kacprzyk, Janusz, Series Editor, Allahviranloo, Tofigh, editor, Hosseinzadeh Lotfi, Farhad, editor, Moghaddas, Zohreh, editor, and Vaez-Ghasemi, Mohsen, editor

Published
2024
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8. Data Science in the Field of Health

Author

Kulan, Handan, Özer, Ezgi, Kacprzyk, Janusz, Series Editor, Allahviranloo, Tofigh, editor, Hosseinzadeh Lotfi, Farhad, editor, Moghaddas, Zohreh, editor, and Vaez-Ghasemi, Mohsen, editor

Published
2024
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9. Healthcare Facility Location

Author

Rezai, Hamed Zhiani, Davoodi, Alireza, Kacprzyk, Janusz, Series Editor, Allahviranloo, Tofigh, editor, Hosseinzadeh Lotfi, Farhad, editor, Moghaddas, Zohreh, editor, and Vaez-Ghasemi, Mohsen, editor

Published
2024
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14. Transportation Models in Health Systems

Author

Kurt, Nursaç, Bakır, Ramazan, Seyyedabbasi, Amir, Kacprzyk, Janusz, Series Editor, Allahviranloo, Tofigh, editor, Hosseinzadeh Lotfi, Farhad, editor, Moghaddas, Zohreh, editor, and Vaez-Ghasemi, Mohsen, editor

Published
2024
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22. Green Supply Chain in Medicine

Author

Eshkiki, Mehdi Fadaei, Homayounfar, Mahdi, Kacprzyk, Janusz, Series Editor, Allahviranloo, Tofigh, editor, Hosseinzadeh Lotfi, Farhad, editor, Moghaddas, Zohreh, editor, and Vaez-Ghasemi, Mohsen, editor

Published
2024
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26. Analysing the surface morphology of annealed FTO/ZnS bilayer films: stereometric, fractal, and wettability approaches.

Author

Eftekhari L and Ghasemi M

Abstract

The surface micromorphology and roughening of the thermal evaporation-coated FTO/ZnS bilayer thin films annealed at 300, 400, 500, and 550 ∘ C for 1 h have been studied. AFM images of the prepared samples were analysed by the MountainsMap software, and the effects of the annealing temperature on the surface texture of the FTO/ZnS thin film's surface were investigated. Stereometric and advanced fractal analyses showed that the sample annealed at 500 ∘ C exhibited greater surface roughness and greater skewness and kurtosis. This film also has the most isotropic surface and exhibits the highest degree of heterogeneity. Also, despite the decrease in surface roughness with increasing temperature from 500 to 550 ∘ C , the fractal dimension tends to increase. The static water contact angle measurements indicate that the film annealed at 500 ∘ C exhibits higher hydrophobicity, which can be attributed to its greater topographic roughness. Our research indicates that the surface morphology of FTO/ZnS bilayer thin films is influenced by the annealing temperature. Changing factors such as roughness, fractality, and wettability parameters to help improve surface performance make the FTO/ZnS bilayer suitable for application in electronic and solar systems., (© 2024. The Author(s).)

Published
2024
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