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Featured researches published by François Ngapgue.


Journal of Decision Systems | 2012

Fonction utilité dans la prise de décision pour l’entretien des routes en terre: application au Cameroun

Jérémie Madjadoumbaye; François Ngapgue; Thomas Tamo Tatietse

L’état d’une route est donné par plusieurs dégradations existantes sur cette dernière. L’on ne saurait analyser isolément chaque dégradation et prendre une décision fiable. Il est question dans cet article de considérer une combinaison de toutes les dégradations les plus récurrentes sur une route en terre à travers une fonction utilité ou encore fonction de décision pour ces dégradations. Chaque dégradation agit en fonction de son importance d’où l’analyse dans ce travail des différents poids à donner à chaque coefficient. Les intrants de cette fonction utilité seront les matrices de dégradation élaborées dans les travaux précédents. Connaissant la valeur de la fonction utilité, le décideur connaît l’action à entreprendre sur un tronçon de route. The deteriorated state of roads is caused by many warring factors. It is not proper to analyse each cause of degradation in isolation. Therefore, this article sets out to study the different combinations of degradations taking into consideration the recurring deterioration of earth roads. With regard to utility function, each degradation reacts according to its importance. It is in this regard that,input of utility function variables are made according to matrices that were developed in previous work. Knowing the value of the utility function, the decision-maker knows what action to take on a stretch of road.


Archive | 2014

Mineralogical and Geotechnical Characteristics of t he Loose Weathered Trachytes of Fongo-Tongo (West-Cameroon)

Armand Sylvain Ludovic Wouatong; William Hyoumbi Tchungouelieu; François Ngapgue; Valentine Katte


Archive | 2012

Physical characterization of two Cameroon bamboo species:Arundinaria alpina and oxytenantera abyssinica

Fokwa Didier; François Ngapgue; M. Mpessa; T. Tamo Tatietse; Douala Cameroon


Earth Science Research | 2018

Mineralogical, Geotechnical Characterization and Stability of the Cut Slopes of Widikum and its Surroundings (North-West Cameroon)

Oscar Rodrigue Michel Kenmoe; Valentine Katte Yato; François Ngapgue; Armand Sylvain Ludovic Wouatong


Construction and Building Materials | 2018

Ceramic with potential application of ngwenfon alluvial clays (noun, west cameroon) in building construction: Mineralogy, physicochemical composition and thermal behaviour

I.Y. Bomeni; André Njoya; François Ngapgue; Armand Sylvain Ludovic Wouatong; R. Yongue Fouateu; V. Kamgang Kabeyene; Nathalie Fagel


Clay science | 2018

GEOLOGICAL AND PHYSICOCHEMICAL STUDY OF THE ALLUVIAL CLAY OF THE MONOUN PLAIN (WEST CAMEROON) AS RAW MATERIALS FOR CERAMIC PRODUCT

Isaac Yannick Bomeni; Armand Sylvain Ludovic Wouatong; François Ngapgue; Véronique Kamgang Kabeyene; Nathalie Fagel


Geotechnical and Geological Engineering | 2017

Influence of Random Inclusion of Synthetic Wicks Fibers of Hair on the Behavior of Clayey Soils

Armand Sylvain Ludovic Wouatong; Wamba Danny Love Djukem; François Ngapgue; Valentine Katte; Véronique Kamgang Kabeyene Beyala


Archive | 2016

CARACTERISATION PHYSIQUE DES SABLES DE RIVIERES EN VUE DE LEUR MEILLEURE UTILISATION DANS LA CONFECTION DES BETONS ( PHYSICAL CHARACTERIZATION OF RIVER SAND FOR BEST USE IN THE MANUFACTURE OF CONCRETE )

Tatiana Kamga Djoumen; Chérif Bishweka Biryondeke; Grégoire Kamdjo; François Ngapgue


International journal of innovation and scientific research | 2016

PHYSICAL CHARACTERIZATION OF RIVER SAND FOR BEST USE IN THE MANUFACTURE OF CONCRETE

Tatiana Kamga Djoumen; Chérif Bishweka Biryondeke; Grégoire Kamdjo; François Ngapgue


International Journal of Innovation and Applied Studies | 2016

STUDY OF WATER ABSORPTION COEFFICIENT OF GOMA’S VOLCANIC AGGREGATES AND ITS INFLUENCE IN FORMULATING CONCRETE

Chérif Bishweka Biryondeke; François Ngapgue; Grace Olembe Musangi

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