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Your search keyword '"Samai, Mohamed"' showing total 15 results
Start Over Author "Samai, Mohamed" Publisher springer science and business media llc
15 results on '"Samai, Mohamed"'

1. Immunisation coverage and factors associated with incomplete immunisation in children under two during the COVID-19 pandemic in Sierra Leone

Author

Wassenaar, Myrte, primary, Fombah, Augustin E., additional, Chen, Haily, additional, Owusu-Kyei, Kwabena, additional, Williams, Julian, additional, Sunders, Joe-Henry C., additional, Llach, Mireia, additional, Quinto, Llorenç, additional, Sesay, Tom, additional, Samai, Mohamed, additional, Menéndez, Clara, additional, and González, Raquel, additional

Published
2024
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2. Coverage of intermittent preventive treatment of malaria in infants after four years of implementation in Sierra Leone

Author

Fombah, Augustin E., primary, Chen, Haily, additional, Owusu-Kyei, Kwabena, additional, Quinto, Llorenç, additional, Gonzalez, Raquel, additional, Williams, Julian, additional, Berne, Mireia LLach, additional, Wassenaar, Myrte, additional, Jalloh, Abubakarr, additional, Sunders, Joe-Henry C., additional, Ramirez, Maximo, additional, Bertran-Cobo, Cesc, additional, Saute, Francisco, additional, Ekouevi, Didier K., additional, Briand, Valérie, additional, Kamara, Anitta R. Y., additional, Sesay, Tom, additional, Samai, Mohamed, additional, and Menendez, Clara, additional

Published
2023
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4. Second-order analysis of plane steel structures using Rankine-Merchant-Wood approach

Author

Samai Mohamed Laid and Boukeloua Smail

Subjects
Buckling, Residual stress, business.industry, Plane (geometry), Yield surface, Hinge, Structural engineering, business, Load factor, Finite element method, Civil and Structural Engineering, Degree Rankine, Mathematics
Abstract

Plastic analysis of plane steel structures can be conducted for the first order as well as for the second order. The Rankine-Merchant-Wood approach used for the second-order has revealed the importance of the λe/λc ratio (λc being the collapse load factor of simple plastic analysis and λe being the elastic buckling load factor). The field of application, unfortunately, is restricted to a range of values of this ratio. The novelty of the present research makes the Rankine-Merchant-Wood approach applicable for steel frame structures independently of the λe/λc ratio values and without limitation. Thus, λc is replaced by a collapse factor load λM-P which takes into consideration the moment-axial load interaction (M-P). The yield surface method, the initial geometric imperfections, and the residual stresses are taken into consideration. A numerical program has been developed in Matlab language based on the finite element method and the elastic–plastic hinge method. The present approach has been validated for three types of frames, two of them being those of Vogel and one of Chen. The results obtained have been found very close to those of these authors. Thus, the numerical program developed may be considered sufficiently efficient and reliable for this type of analysis.

Published
2021

5. Incidence and risk factors of surgical site infections and related antibiotic resistance in Freetown, Sierra Leone: a prospective cohort study

Author

Lakoh, Sulaiman, primary, Yi, Le, additional, Sevalie, Stephen, additional, Guo, Xuejun, additional, Adekanmbi, Olukemi, additional, Smalle, Isaac O., additional, Williams, Nathaniel, additional, Barrie, Umu, additional, Koroma, Celesis, additional, Zhao, Yongkun, additional, Kamara, Matilda N., additional, Cummings-John, Constance, additional, Jiba, Darlinda F., additional, Namanaga, Enanga Sonia, additional, Deen, Betsy, additional, Zhang, Juling, additional, Maruta, Anna, additional, Kallon, Christiana, additional, Liu, Peng, additional, Wurie, Haja Ramatulai, additional, Kanu, Joseph Sam, additional, Deen, Gibrilla F., additional, Samai, Mohamed, additional, Sahr, Foday, additional, and Firima, Emmanuel, additional

Published
2022
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