Search results

Intro -- Preface -- Organization -- Contents -- Science, Energy and Environment -- A Multivariate Regression Model for the Assessment of Solar Radiation in the Senegalese Territories -- Abstract -- 1 Introduction -- 2 Study Area -- 3 Multivariate Regression Model -- 4 Data -- 4.1 Ground Data -- 4.2 Satellites Data -- 4.3 Focus on the Inputs Data -- 5 Validation Model -- 6 Results and Discussion -- 7 Conclusions -- Acknowledgement -- References -- Modeling the Crystal Violet Kinetics Removal by Electrocoagulation Process for Wastewater Treatment -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Characteristics of Crystal Violet -- 2.2 Experimental Device -- 2.3 Electrode Reactions -- 2.4 Modeling Experiments -- 2.5 Model Development -- 2.5.1 Kinetics and Adsorption Models -- 2.5.2 Variable Order Kinetic: Model Development -- 3 Results and Discussion -- 3.1 Optimization of Operating Parameters -- 3.2 Electrocoagulation Kinetics -- 3.3 Adsorption Isotherm -- 3.4 Variable Order Kinetic Model (VOK) -- 3.5 Statistical Analysis -- 4 Conclusion -- References -- Study of the Correlation Between the Dust Density Accumulated on Photovoltaic Module's Surface and T ... -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Methodology -- 2.2 Dust Density Determination -- 2.3 Presentation of the Experimental Platform -- 2.4 Environmental Parameters During the Experimental Period -- 3 Results and Discussions -- 3.1 Evaluation of Dust Density -- 3.2 Variation of Performance Characteristics with Dust Density -- 3.3 Correlation Between the Deposited Dust Density and the Modules Characteristics Degradation -- 4 Conclusion -- References -- Education -- Strengthening Partnerships Between Universities and SMEs Within the Open Innovation Framework -- Abstract -- 1 Introduction -- 2 The University Group a New Concept -- 2.1 Global Context.

Intro -- Preface -- Organization -- Contents -- INTERSOL Main Track -- On the Prevalence of Boomerang Routing in Africa: Analysis and Potential Solutions -- Abstract -- 1 Introduction -- 2 International Internet Connectivity: Peering, Transit and Boomerang -- 3 Data Acquisition and Description -- 3.1 Data Acquisition -- 3.2 Data Limitation -- 4 Data Analysis -- 4.1 Number of Boomerang Routes -- 4.2 Delay Analysis -- 5 Network Improvements -- 6 Conclusion -- Acknowledgements -- References -- Ego-Community Evolution Tracking in Instant Messaging Networks -- 1 Introduction -- 2 Network Set-Up -- 2.1 Challenges and Problem Statement -- 2.2 Nodes Attributes -- 2.3 Links Attributes -- 2.4 Operations of Network Evolution -- 3 Time Window Size Management -- 3.1 Network Quality -- 3.2 Dynamic Network Evolution -- 4 Tracking the Changes of Dynamic Ego-Community -- 5 Application Case -- 5.1 Static Ego-Community Detection -- 5.2 Tracking Ego-Communities Evolution -- 6 Conclusion -- References -- Investigation of Degradation in Crystalline Silicon Photovoltaic Modules After 10 Years Exposition in Senegal by Infrared (IR) and Electroluminescence (EL) -- Abstract -- 1 Introduction -- 2 Location and Platform Test Presentation -- 2.1 Presentation of the Experimental Environment -- 2.1.1 Temperature -- 2.1.2 Radiation and Insolation -- 2.1.3 Humidity -- 2.2 Platform and Modules Presentation -- 3 Data Acquisition and Analysis Methodology -- 3.1 Data Acquisition -- 3.2 Analysis Approaches -- 4 Analysis of Electrical Characteristics -- 4.1 Photovoltaic Modules Degradation Assessment -- 4.1.1 Monocrystalline Module (A) -- 4.1.2 Polycrystalline Module (B) -- 4.1.3 Comparative Study -- 5 Analysis by Imaging Techniques -- 5.1 Module A: Monocrystalline -- 5.1.1 Electroluminescence Analysis (EL) -- 5.1.2 Analysis by Infrared Imaging (IR) -- 5.2 Module B: Polycrystalline.

L'objectif de ce travail est d'étudier l´effet du greffage et de l'inoculation mycorhizienne sur la croissance du baobab dans les régions de Kolda et de Sédhiou. Pour ce faire, un dispositif experimental en bloc aléatoire complet constitué de quatre traitements sur des plants de baobab (greffé inoculé, greffé non inoculé, non greffé inoculé et non greffé non inoculé) a été mis en place dans huit (8) sites. Le greffage a été effectué avec la méthode de fente terminale et l'inoculation avec un mélange de souches de champignons mycorhriziens arbusculaires (Glomus aggretatum, G.intraradices et G. Fasciculatum) en pépinière. Deux ans après plantation, les traitements ont montré que les plus gros diamètres et le plus grand nombre de rameaux sont obtenus avec les plants greffés (inoculés et non inoculés) alors que les hauteurs les plus élevées avec ceux non inoculés (non greffés et greffés). Le nombre de feuilles le plus imporatant est observé sur les plants non greffés non inoculés. Par ailleurs, des différences significatives entre les sites ont ausssi été constatées. Tel est le cas pour les taux de coissance selon les lequels pour la plupart des sites les plants non greffées inoculés donnent les meilleurs résultats en hauteur et en diamétre. L'inoculation n'a pas eu d'effet significatif. Les résultats de cette étude contribueront à une meilleure maîtrise des techniques de raccourcissement du cycle de production du baobab, par conséquent, au développement de politiques de rajeunissement des parcs à baobab au Sénégal pour mieux répondre à la demande du marché national et international de plus en plus croissant. The aim of this work is to study the effect of grafting and mycorrhizal inoculation on recovery, survival and success rates and on certain baobab growth variables in the Kolda and Sedhiou regions. To do this, a complete randomized experimental block consisting of four treatments on baobab plants (grafted inoculated, grafted uninoculated, ungrafted inoculated and ungrafted uninoculated grafted) was placed in eight (8) sites. Grafting was performed using the terminal slit method and inoculation with a mixture of archaeal mycorrhizal fungi strains (Glomus aggretatum, G. intraradices and G.Fasciculatum) in the nursery. Two years after planting, the largest diameters and the largest number of branches are obtained with the grafted plants (inoculated and uninoculated) whereas the highest heights with those not inoculated (ungrafted and grafted). On the other hand, the number of leaves did not give any significant difference. Moreover, there are significant differences between the sites related inter alia to their mode of management. This is the case of the growth rates, which ungrafted inoculated plants have the more important diameter and height in most of the sites. There is no significant effect's inoculation. The results of this study will contribute to a better control of the techniques of shortening the cycle of production of baobab by horticultural grafting and, consequently, to the development of rejuvenation policies of baobab parks in Senegal to better meet the demand of the national market and more and more international.