La dégradation de la fertilité des sols est un problème majeur en Afrique subsaharienne. forte croissance démographique, demande locale nourriture et réduction terres arables disponibles risquent d’accroître ce phénomène. Alors que les engrais minéraux sont peu utilisés, notamment à Madagascar, gestion largement dépendante matières organiques produites ferme. Afin d’augmenter l’efficacité du re...

Various mine detection techniques are reviewed with particular emphasis on signal and image processing methods. Based on the target, mines are classified into two types; anti-tank mine (ATM) and anti-personnel mine (APM). Because of the variety of mine types, current mine detection techniques are diversified. The assumption is made that most mine detection techniques consist of sensor, signal p...

In this work, a safe Coal Mine Monitoring system which replaces the traditional coal mine monitoring systems which tend to be wired network systems. This play an important role in coal mine safe production. With continuous enlarging of exploiting areas and extension of depth in coal mine, many laneways become monitoring blind areas, where are lots of hidden dangers. Moreover, it is inconvenient...

Researchers have worked on routing issues for adhoc-networks, VANET’s, and Wireless Sensor Networks in a normal scenario; recently there has been a recent trend towards the study on underground wireless networks and proposals for design and development for Wireless Underground Sensor Networks. This paper highlights the concept of wireless underground sensor network in the coal mine environment,...

For several year, "Entre Douro e Minho"(EDM) area has undergone an important diminution in agricultural surface and number of exploitations. RGA analysis of 1989 and 1999 confirms this tendency but some “fréguesias” know an increase in the cultures surface cultivated like Vinho Verde. Spatial representation of the RGA data in a GIS shows the great productive areas of Vinho Verde where cultures ...

Memory error exploitations have been around for over 25 years and still rank among the top 3 most dangerous software errors. Why haven’t we been able to stop them? Given the host of security measures on modern machines, are we less vulnerable than before, and can we expect to eradicate memory error problems in the near future? In this paper, we present a quarter century worth of memory errors: ...

Archidendron jiringa (Jack) Nielsen is a leguminous tree plant belonging to the family of Fabaceae. A. jiringa has been commonly used in traditional medicine for a range of ailments and is consumed as raw vegetable in Malaysia. In order to provide comprehensive overview of this plant, this review will summarize the current state of knowledge that is available on the botany, phytochemistry, phar...

La consommation du manioc, sous forme des pâtes alimentaires (Foufou ou chikwangue) nécessite de passer par le rouissage qui réduit la toxicité due à présence l’acide cyanhydrique. Cependant, les caractéristiques exploitations et techniques rouissages sont variées. Ainsi l’objectif cette étude était réaliser une typologie agricoles familiales commune Maluku, en rapport avec manioc. Une enquête ...

Strain is an important parameter for assessing the potential impacts resulting from mine subsidence movements. However, strain resulting from mine subsidence is also one of the most difficult parameters to predict accurately. A number of methods can be used to predict strain, from simple empirical relationships, to more complex statistical approaches. This paper looks at some of these predictio...