Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Hamadjam, Abboubakar"'
Autor:
Ashraf Adnan Thirthar, Hamadjam Abboubakar, Abdesslem Lamrani Alaoui, Kottakkaran Sooppy Nisar
Publikováno v:
Results in Control and Optimization, Vol 16, Iss , Pp 100474- (2024)
Using the Caputo operator, a model for a fractional-order epidemic is developed to investigate the fear effect in a pathogenic environment and vaccination procedure. First, we examine if the proposed model is positive. Next, based on the value of the
Externí odkaz:
https://doaj.org/article/ab875453f9f642fcb7546a0781eebe65
Autor:
Francis Yongwa Dtissibe, Ado Adamou Abba Ari, Hamadjam Abboubakar, Arouna Ndam Njoya, Alidou Mohamadou, Ousmane Thiare
Publikováno v:
Scientific African, Vol 23, Iss , Pp e02053- (2024)
Flood crises are the consequence of climate change and global warming, which lead to an increase in the frequency and intensity of heavy rainfall. Floods are, and remain, natural disasters that result in huge loss of lives and material damage. Flood
Externí odkaz:
https://doaj.org/article/f3c9375eec0f4f2a958c20b5a93bd762
Autor:
Benjamin Garga, Hamadjam Abboubakar, Rodrigue Saoungoumi Sourpele, David Libouga Li Gwet, Laurent Bitjoka
Publikováno v:
Journal of Imaging, Vol 10, Iss 7, p 158 (2024)
The main objective of this work is to use convolutional neural networks (CNN) to improve the performance in previous works on their baseline for pollen grain classification, by improving the performance of the following eight popular architectures: I
Externí odkaz:
https://doaj.org/article/99606051dc224bb8a1d8855a250e9339
Autor:
Rubin Fandio, Hamadjam Abboubakar, Henri Paul Ekobena Fouda, Anoop Kumar, Kottakkaran Sooppy Nisar
Publikováno v:
Partial Differential Equations in Applied Mathematics, Vol 8, Iss , Pp 100589- (2023)
The goal of this work is to derive and study a new model which traduces the transmission dynamics of the Buruli ulcer (BU), in which we replace mass action incidences with standard incidences, consider latent period, and by using both integer and fra
Externí odkaz:
https://doaj.org/article/86535940b06848fabcfc9933be280f3f
Publikováno v:
AIMS Mathematics, Vol 8, Iss 3, Pp 6447-6465 (2023)
Many studies have shown that faced with an epidemic, the effect of fear on human behavior can reduce the number of new cases. In this work, we consider an SIS-B compartmental model with fear and treatment effects considering that the disease is trans
Externí odkaz:
https://doaj.org/article/91614162b3d74c5db97359308f95b72f
Autor:
Joseph Yangla, Hamadjam Abboubakar, Ezekiel Dangbe, Richard Yankoulo, Ado Adamou Abba Ari, Irépran Damakoa, Kottakkaran Sooppy Nisar
Publikováno v:
Scientific African, Vol 21, Iss , Pp e01812- (2023)
In this paper, we introduce a Caputo-sense fractional derivative to an existing model for the Chikungunya transmission dynamics, replacing integer derivative. After reviewing previous work on the integer order model, we suggest a change whereby the i
Externí odkaz:
https://doaj.org/article/f975e5e8bb47480da46e0f6b2e241f85
Publikováno v:
Alexandria Engineering Journal, Vol 60, Iss 3, Pp 3189-3204 (2021)
The first reported case of coronavirus disease (COVID-19) in Brazil was confirmed on 25 February 2020 and then the number of symptomatic cases produced day by day. In this manuscript, we studied the epidemic peaks of the novel coronavirus (COVID-19)
Externí odkaz:
https://doaj.org/article/b4e13609b3cb48148386ff6b7be0d406
Publikováno v:
Axioms, Vol 11, Iss 8, p 363 (2022)
In this work, we replaced the integer derivative with Caputo derivative to model the transmission dynamics of measles in an epidemic situation. We began by recalling some results on the local and global stability of the measles-free equilibrium point
Externí odkaz:
https://doaj.org/article/dc697b85860a4f46953c19fa9f450aec
Publikováno v:
Journal of Imaging; Feb2024, Vol. 10 Issue 2, p41, 18p
Publikováno v:
Fractal and Fractional, Vol 5, Iss 4, p 149 (2021)
In this work, we formulate and mathematically study integer and fractional models of typhoid fever transmission dynamics. The models include vaccination as a control measure. After recalling some preliminary results for the integer model (determinati
Externí odkaz:
https://doaj.org/article/c99dd8cf7ae8455895dd1a164baaba48