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Hydro-Pluviometric Variability and Water Resource Management - Medesse T Deo Gratias Goudomon

Hydro-Pluviometric Variability and Water Resource Management - Medesse T Deo Gratias Goudomon

Building and testing a micro-hydro turbine - André Léolein Tsoungui Foé

The brain drain from Africa to the developed world is a major drain on any economy. Access to energy in Africa, and more specifically in Cameroon, is a key factor in the development of agricultural industries. It is in this context that we conducted our research into the manufacture of a micro-hydro turbine. The preliminary design showed that the diameter of the impeller is 263 mm, that of a trough is 50 mm and that of the injector is 20 mm. The inertia mass of the impeller is 0.0021 Kg.m2. The torque..

Accompanying measures for a gold mine in nearby villages - Djibrilla Alassane

The aim of this study is to draw up a hydro-agricultural development programme for the people living near the Morila S.A. gold mine in the Sikasso region of southern Mali.The objectives are to - design and size the main works that make up the overall hydro-agricultural development plan; - estimate the overall cost of the hydro-agricultural development programme for the resources in the study area and plan its implementation.The approach adopted consists of: - carrying out a literature review on hydro-agricultural..

Hydro-agricultural development, case of SITIBIRLI - Wasbahounsa Bouba

The water deficit and the practice of agriculture is one of the challenges for many of our African villages. It is thus, with the aim of increasing the production of the farmers of the commune of Dargala Arrondissement of the Far North in Cameroon, case was made these studies. Under an arid soil in dry season and an acceptable rainfall in rainy season, we thought about the method to keep the excess rainfall received during the rainy season. In order to accompany our farmer parents during the period..

Modeling course in the hydro-agricultural field - Nacira Chourghal

Modeling is a powerful tool that allows the reproduction of complex ecosystems involving numerous interactions between the components of the system. In the field of agricultural hydraulics, data on rainfall and runoff constitute the raw material on which the calculations of the various hydrotechnical works are based. The lack of data and their qualities make modeling an indispensable means; it allows to complete the historical information and reproduces as faithfully as possible the observed series..

Northern Sahara hydro-system, water quality and ichthyofauna - Islam Aberkane

This study focuses on the physico-chemical characterization and organic pollution parameter of water, in six natural wetlands of the vast region of the northern Sahara: Lake Temacie, Lake Megarine and Oued Still, Oued Djedi, Lake Ayata, Oued Zemar (Biskra). The surveys conducted between October 2016 and Mais 2017, showed that the majority of sites are slightly turbid, brackish or salty with a low conductivity has strong depending on salinity, and a pH moderately alkaline. The concentrations of the..

Hydro-agricultural developments - Diagnosis and evaluation in Benin - Alice Mahougnon Sakou

Mapping of hydro-morphological evolution and risk zones - Salsebil Bel Hadj Ali

The issue of natural hazards in general and Floods in particular is a topic of current interest that marks a memorable action in the world and specifically in Tunisia, especially in view of the last major floods of the Medjerda. Indeed, the management of this risk becomes more and more a necessity that must include all actors and all possible means available. In this work, has been exposed the mapping of flood areas of the middle valley of the Medjerda by means of the combination of different complementary..

Evaluation of water management performance in 5 Niger perimeters - Ahmed Abdou Moulaye

This document presents the diagnostic analysis of water management in the hydro-agricultural schemes of Saga, Ndounga 2, Namardé Goungou, Djambala and Lata under ONAHA supervision. Several water management experiences have been tested in Niger, namely i) Traditional water management within the framework of ONAHA's advisory support through the supervisory staff (Perimeter Director, Agricultural Technical Advisors, Organisational Advisors), ii) Support for water management through the support of a..

Power Transformers with Built-in Harmonic Filtering - Gustavo Salazar

Harmonic filtering has always been conceived from outside the transformer in the plant or in the building. In recent times it must be possible to allow a continuity of operation of the transformer even when the harmonic limit parameters have been violated. The reality is that every transformer has its own capacitance and it also has coil portions that fall into disuse when the transformer already has its taps or terminals selected. In this case the commutator fulfills the function of giving us this..

Environment, Health And Quality Of Life - Elza Ribeiro Dos Santos Neta

This research addresses the issue of the environment, health and quality of life, with an emphasis on the public water supply in the Vila Vitória neighborhood in Imperatriz - MA. The main objective of the research is to analyze the quality of the water offered to the population of the Vila Vitória neighborhood, as well as to identify the reasons why residents do not have water in their taps throughout the day. In order to carry out the study, a bibliographical and documentary review was carried..

Analysis of rice yield variability in Niger - Idrissa Gaya Yacouba

The main objective is to determine the factors that lead to differences in yields between rice varieties according to the cultivation practices of producers. The study took place in Niger on the hydro-agricultural developments of the river valley. To achieve this objective, the study was based on a survey phase based on a questionnaire integrated into a smartphone, and another observation phase, based on the installation of plots and sub-plots in the farmers' fields in order to collect information..

Information on the performance of Nile Tilapia in Senegal - Abdoulaye Niane

The research topic is part of the \Valorisation du potentiel écologique et hydro-agricole de la vallée du fleuve Sénégal dans le département de Dagana par l'aquaculture intensive d'Oreochromis niloticus\ programme, signed between the University of Liège in Belgium and the Cheikh Anta Diop University in Dakar, and is in its final year of implementation after 5 years of existence from 2006-2011. Most of the activities have been carried out locally, at the CSS experimental station, at the target..

Water and Electrolytes - Jean Le¿Clerc Nicolas

The hydro-electrolyte and acid-base balance is of vital importance to maintain correct homeostasis, as it regulates most of the organic functions. It is a complex subject in its therapeutic management due to the varied and not easy formulas designed for the correction of these alterations. The aim of this work is to review the subject in an updated way, showing a novel method that can facilitate the correction of dehydration, but for the first time taking into account the basic daily fluid needs,..