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Collection: Revue Nature et Technologie

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Air layering of three agroforestry species in the Guinean savannah highlands of Adamawa in Cameroon

Ximenia americana, Vitex doniana and Lophira lanceolata are species prized by the populations of the Guinean savannah highlands of Cameroon. They are unfortunately still in the wild where they are subjected to various pressures. From the perspective…

An energy-efficiency technique for n-way stream joins in wireless sensor networks

In wireless sensor networks, the critical factor is the sensors energy. The exhaustion of this energy causes network paralysis. In wireless sensor networks, the join operation needs a lot of energy consumption. This energy is so very high for nway…

An investigation of the practices of veterinarians and breeders in the prevalence of antibiotic resistance in poultry farms in algeria.

The practices adopted by the breeder and the veterinarian are factors that influence resistance to antibiotics in poultry farms. The study aims to determine some of the applications of the veterinarian and the breeder. A survey was carried out among…

Analyse des mesures pendulaires d’auscultation par le modèle HST et interprétation des résultats; cas du barrage Béni Haroun: Analysis of the pendular measurements of auscultation by the HST model and interpretation of the results; case of the Beni Haroun dam

La surveillance des barrages fournit des séries de mesures chronologiques issues de différents dispositifs équipant l’ouvrage. Cesmesures doivent être analysées afin de déterminer le comportement du barrage par rapport aux facteurs (pression…

Antioxidant activity of hydroethanolic and hydroacetone crude extracts of hydroacetone extracts of the organs of four plants from Ivory Coast medicinal plants

By DPPH● radical scavenging method, the antioxidant activity of the total hydroethanol and hydroacetonic extracts of Palisotahirsuta (Commelinaceae), Mallotus oppositifolius (Euphorbiaceae), Ocimum gratissimum (Lamiaceae), Glyphaea brevis…

Bilan de la première transplantation d’arbres de ficus (Ficus retusa) en Algérie: Report of the first transplantation of Ficus trees (Ficus retusa) in Algeria

518 arbres centenaires de ficus (Ficus retusa) d’Hussein Dey (Alger-Est) vers plusieurs sites dans le centre Algérois. Cette vaste opération de transplantation, la première du genre en Algérie a été réalisée février 2009. Juste après, l’opération a…

Caractérisation d’un périmètre de reboisement de pinède en vue de proposition des essences les plus appropriées, cas du Jbel Zemzem (Nord-ouest, Maroc): Characterizing a pine forest reforestation area to propose the most appropriate species, case of Jbel Zemzem (Northern west, Morocco)

La dégradation accélérée des forêts est un défi majeur pour les gestionnaires. Le reboisement constitue alors une solutionimportante pour l’amélioration des services écosystémiques voire la survie des écosystèmes. Comparée à d’autres essences comme…

Carbonation Of The Concrete Of The Sanitation NetworksIn The Region Of Ouargla

Several degradations have been observed on the sanitation networks (pipes and manholes) in Ouargla region, because of the qualityof the concrete produced, the type of pipes used, and also the aggressiveness of the external environment. These problems…

Characterization of a weld seam by FSW : Case of polymeric materials

The aim of our experimental work is to propose a tool model that could be used as a predictive tool to obtain a good welding of polymers like HDPE by the FSW technique or a linear welding of thin flat plates. A series of experimental tests concerning…

Characterization of Fluorescent Rhizobacteria Isolated From Oleander (Nerium oleander L.) and Olivier (Olea oleaster L.) With Antagonistic Effect Against Fusarium oxysporum f. sp. radicis-lycopersici

This study aims to characterize the biocontrol potential of two fluorescent rhizobacteria isolated from Oleander (Nerium oleander L.) and Olivier (Olea oleaster L.). The isolation was done in Cetrimide agar. The fluorescing strains at 366 nm were…

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