Abdou Karim Farota

Gaston Berger University, Saint-Louis · Physique Appliquée

This study examines 40 years of monthly precipitation data in Senegal (1979–2018) using Climatic Research Unit observations and ERA5 reanalyzes, aiming to understand the influence of oceanic and atmospheric factors on Senegal's precipitation in July, August and September (JAS). The variability of Senegal's precipitation is first compared with that...

The McEliece cryptosystem is one of the oldest public key cryptosystems. It is also the first public key cryptosystem based on error correcting codes. Its main advantages are its speed of encryption and decryption, and high security (promised to resist the quantum computer). But it suffers from a major drawback. Indeed, it requires a very large siz...

Public lighting is all the means used to illuminate public spaces, roads and residential areas. It contributes to user safety and accounts for nearly a third of electricity consumption worldwide. The lamp lighting system was on/off. That is to say, either the street lamps are 100% on without taking into account the observed traffic density (much, l...

Senegal is a country of the Sahel. In this region, most of the populations live from agro-pastoral activities. The northern zone of Senegal is strongly influenced by river cultures. And the dynamics of the Senegal River are dependent on rainfall. The rainfall in the area is very closely linked to the dynamics of the atmosphere. The study of the spa...

In this paper, we study the coexistence of two key technologies in the same fifth-generation network, namely D2D (Device-to-Device) communication and MEC (Multi-Access Edge Computing) technology. These two promising technologies each have important roles to play in future telecommunications networks. D2D communication is a technology that aims to i...

This study focuses on the Sahel, one of the areas with the highest concentration of desert dust, with source areas having fine particle emissions in Chad, Niger, Mauritania, etc. It also includes areas of subsidence of air masses that promote the deposition of dust, such as Senegal. It turns out that the countries of Sahel are among the poorest in...

Desert aerosols suspended in the atmosphere are a very marked fact in West Africa with estimates of 400 to 1000 million tons produced annually and concentrations exceeding 50 μg · m3 in Burkina. In Bamako, the daily dust concentration can go up to reach 504 μg/m3. The Sahara and the Sahel are recognized as the primary desert aerosol producing regio...

This work concerns the 10˚ North, 20˚ North African band. Area renowned for having some of the poorest countries in the world. It is also home to the Sahelian strip and part of the Sahara. The countries in this zone have a relatively low electrification rate compared to the enlightened country. To solve this problem, these countries want to turn to...

The three measurement periods: the TOMS Nimbus-7 TOMSN7L3 v008 from 1978 to 1993, the TOMS EP TOMSEPL3 v008 from 1996 to 2005 and the OMI OMTO3d v003 from 2004 to 2008 have allowed the presence of dust to be observed in the 10 ̊ North to 20 ̊ North latitudinal band (10 - 20 band) of Africa. The 10 - 20 band has a permanent dust presence. The AERONE...

In this study, we worked on the modelling and the simulation of atmospheric conditions impact on photovoltaic production in Saint Louis area. Using Ineichen's model based on the disorder factor of Link, an assessment of sunshine in the study area was made. A characterization of the irradiation is elaborated by modelling the radiation and by simulat...

Squall Lines (SL) are fast and well organized mesoscale convective systems. These phenomena of primary importance have been the subject of numerous studies, mainly descriptive and dynamic. Applications made of satellite data for the study of Squall lines are mostly descriptive. The advantage of ATOVS data is that they provide a vertical view of the...

The city of Dakar is located in the Sahelian zone on average latitude at the western limit of the African continent and the Atlantic Ocean. Traffic in the lower troposphere is dominated by three air currents: The maritime trade wind, the harmattan and the monsoon. Particulate aerosol pollution is combined with increasing chemical pollution due main...

Dakar, like most African capitals, is characterized by a high human density, a dense transport network where motor vehicles are old and a high concentration of industries. Significant quantities of hydrocarbons are consumed daily to meet the energy needs of the economy; the combustion of hydrocarbons in engines and boilers in the presence of oxygen...

After a few years of calm, the investigations on the dynamic, especially nonlinear, systems returned to the front of the research in non-linear physics. We propose, in this chapter, a study of an electrical nonlinear transmission line, realized in a previous work, to use the later to highlight certain properties (modulation instability—MI, Fermi-Pa...

The rapid evolution of technology in the field of wireless telecommunications and micro components using MEMS technologies (Micro-electromechanical systems) has contributed to the expansion and rapid development of wireless sensor networks (WSN). This rapid development has contributed to the appearance of sensor and actuator networks (WSAN) or even...

Dakar, like most African capitals, is characterized by a high human density, a dense transport network where motor vehicles are old and a high concentration of industries. Significant quantities of hydrocarbons are consumed daily to meet the energy needs of the economy; the combustion of hydrocarbons in engines and boilers in the presence of oxygen...

bstract The city of Dakar is located in the Sahelian zone on average latitude at the western limit of the African continent and the Atlantic Ocean. Traffic in the lower troposphere is dominated by three air currents: The maritime trade wind, the harmattan and the monsoon. Particulate aerosol pollution is combined with increasing chemical pollution...

In order to boost its production and reinvigorate its activities, the Senegalese Chemical Industries (ICS) have planned to set up a remote management system for its wells and ponds. This firm, located in Mboro, 100 km from Dakar, has a significant need for water in the process of obtaining pure phosphate. Hence its numerous wells and ponds located...

The Dynamic Multipoint VPN (DMVPN) establishes at the request of the remote site VPN tunnels to remote sites. This allows the reproduction of a full mesh of VPNs which helps reduce latency when traffic goes up to a concentration site, saves bandwidth and greatly simplifies the deployment of VPN architectures. DMVPN service relies on the know-how of...

In this work we used the TDMAP model (Tree Driven Mass Accumulation Process) which is the generalization of a suitable wavelet decomposition of fractional Brownian motion (MBF), to improve CPU calculation time of the radiative transfer equation solutions. In the case of radiances, these wavelets are called luxlets. We calculated radiances for a clo...

We report on the experimental observation of the Fermi–Pasta–Ulam (FPU) recurrence in an experimental bi-modal nonlinear transmission line. The FPU recurrence is observed in the two transmission modes known as the low frequency mode and the high frequency mode. In each case, a spectrum analysis is performed in order to study the waves along the lin...

Understanding of major climate mechanisms is, of course, a major challenge for the scientific world, but not only for the latter: in the world, and sometimes quite dramatically urgent, economics, sociology, politics, in short the life, (survival?) of all days depend to present and future of the climat. This is to better understand how the mechanism...

This is to better understand how the mechanisms of climatic region, particularly for economic planning. Senegal has made a contribution to both scientific and logistical important in this operation, which took place during the decade just ended, but whose analysis of the results to date and continues for long, perhaps we expect. The thesis project...