Search Results - "Nzeukou, A"

Effect of slag on the improvement of setting time and compressive strength of low reactive volcanic ash geopolymers synthetized at room temperature by Lemougna, Patrick N., Nzeukou, A., Aziwo, B., Tchamba, A.B., Wang, Kai-tuo, Melo, U. Chinje, Cui, Xue-min

“…This paper presents an investigation on the effect of ground granulated blast furnace slag on the geopolymerization of low reactive volcanic ash. Volcanic ash…”
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Mineralogy and physico-chemical properties of alluvial clays from Sanaga valley (Center, Cameroon): Suitability for ceramic application by Nzeugang Nzeukou, A., Fagel, N., Njoya, A., Beyala Kamgang, V., Eko Medjo, R., Chinje Melo, U.

“…Alluvial clays from four localities along the Sanaga River (Center Cameroon) were studied by physico-chemical, mineralogical and technological characterization…”
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Clayey soils from Boulgou (North Cameroon): geotechnical, mineralogical, chemical characteristics and properties of their fired products by Nzeukou Nzeugang, A., Tsozué, D., Kagonbé Pagna, B., Balo Madi, A., Fankam Deumeni, A., Ngos, S., Nkoumbou, C., Fagel, N.

“…In this study, clayey soils are characterized as backfill and potential fusible raw materials for engineering. Geotechnical tests (particle size distribution,…”
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The role of kyanite in the crystallization and densification of the high strength mullite matrix composites by Kamseu, E, Deutou, N. J. G, Nzeukou, N. A, Melo, U. C, Magdalena, L. G, Sglavo, V. M, Beda, T

“…The crystal structure, the unit cell parameters and the extent of mullitization were determined, using the Rietveld method, for range of mullite matrix…”
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Mineralogical, physico-chemical and ceramic properties of clay materials from Sekandé and Gashiga (North, Cameroon) and their suitability in earthenware production by Kagonbé, B.P., Tsozué, D., Nzeukou, A.N., Ngos, S.

“…Clayey materials from Sekandé and Gashiga localities in the northern part in Cameroon traditionally used for pottery were studied. Eight samples were collected…”
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Study of Water Absorption in Raffia vinifera Fibres from Bandjoun, Cameroon by Nzeukou, A., Drean, J.-Y., Fogue, M., Njeugna, E., Sikame Tagne, N. R., Fokwa, D.

“…The study is focused on the water diffusion phenomenon through the Raffia vinifera fibre from the stem. The knowledge on the behavior of those fibres in…”
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Clay mineralogy in mylonite weathering products from Njimom (west Cameroon): origin and terracotta suitability by Nzeukou, A. N., Tsozué, D., Bomeni, I. Y., Mache, J. R., Kwopnang, M. R., Fagel, N.

“…This study investigated the mineralogical assemblage of weathering products developed on mylonite rocks in west Cameroon. Smectite and vermiculite occurrence…”
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Parametrization of drop size distribution with rain rate by Ochou, Abe Delfin, Nzeukou, Armand, Sauvageot, Henri

“…Because the rain rate R is easier to observe than the drop size distribution (DSD), it is useful to express the DSD as a function of R only, i.e. N( D,R)…”
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Review on the use of volcanic ashes for engineering applications by Lemougna, Patrick N., Wang, Kai-tuo, Tang, Qing, Nzeukou, A.N., Billong, N., Melo, U. Chinje, Cui, Xue-min

“…•Many deposits of volcanic ash (VA) are unexploited.•VA valorization can be of environmental and economic benefit.•VA composition relies on magma type and…”
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Dynamic Analysis of a Snap Oscillator Based on a Unique Diode Nonlinearity Effect, Offset Boosting Control and Sliding Mode Control Design for Global Chaos Synchronization by Tchinda, S. F. Takougang, Mpame, G., Takougang, A. C. Nzeukou, Tamba, V. Kamdoum

“…This paper focuses on the behavior of a specific class of oscillator (snap) under a unique diode effect by checking the complex dynamic of the proposed…”
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The role of kyanite in the improvement in the crystallization and densification of the high strength mullite matrix by Deutou, J. G. N, Mohamed, Hawa, Nzeukou, N. A, Kamseu, E, Melo, U. C, Beda, T, Leonelli, C

“…Fine particles of kyanite were used as reinforcement in mullite matrix composite. Mix of metakaolin and meta-alumina (calcined bauxite) received different…”
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Chaotic Image Encryption Scheme Based on Improved Z‐Order Curve, Modified Josephus Problem, and RNA Operations: An Experimental Li‐Fi Approach by Fotso, S. B. Nono, Talla Mbé, J. H., Atchoffo, W. N., Nzeukou, A. C., Ndjiongue, A. R.

“…Image encryption schemes are predominantly software‐based. Only a select few have been implemented in real‐life communication systems. This paper introduces a…”
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Parametrization of drop size distribution with rain rate for microwave and millimeter wave applications in Central Africa by Ntanguen, Patrick Herve, Nzeukou, Armand, Onguene, Raphael, Sandjon, Alain Tchakountio, Sonfack, Rousvel

“…The estimation and prediction of the rain attenuation in a location are depending on a careful choice of the raindrop size distribution model. Since the rain…”
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Raindrop Size Distribution and Radar Parameters at Cape Verde by Nzeukou, Armand, Sauvageot, Henri, Ochou, Abe Delfin, Kebe, Cheikh Mouhamed Fadel

“…Precipitation measurement using passive or active microwaves from space- or ground-based radar involves hypotheses about the raindrop size distribution (DSD)…”
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The Relation between Rainfall and Area–Time Integrals at the Transition from an Arid to an Equatorial Climate by Kebe, Cheikh Mouhamed Fadel, Sauvageot, Henri, Nzeukou, Armand

“…The area–time integral (ATI) method has previously been successfully used to estimate the area-averaged rain-rate distribution and the rainfall volume over an…”
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The role of kyanite in the crystallization and densification of the high strength mullite matrix composites: Microstructure and mechanical properties by Kamseu, E., Deutou, N. J. G., Nzeukou, N. A., Melo, U. C., Magdalena, L. G., Sglavo, V. M., Beda, T., Lionelli, C.

“…The crystal structure, the unit cell parameters and the extent of mullitization were determined, using the Rietveld method, for range of mullite matrix…”
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The role of kyanite in the improvement in the crystallization and densification of the high strength mullite matrix: Phase evolution and sintering behaviour by Deutou, J. G. N., Mohamed, Hawa, Nzeukou, N. A., Kamseu, E., Melo, U. C., Beda, T., Leonelli, C.

“…Fine particles of kyanite were used as reinforcement in mullite matrix composite. Mix of metakaolin and meta-alumina (calcined bauxite) received different…”
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Rain rate and attenuation statistics along paths in a tropical coastal area from radar data by Nzeukou, Armand, Sauvageot, Henri, Féral, Laurent

“…A data set on rain rate distribution was collected by radar from a coastal site located at tropical latitude in West Africa where the rain field is strongly…”
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Distribution of Rainfall Parameters near the Coasts of France and Senegal by Nzeukou, Armand, Sauvageot, Henri

“…Because of a lack of data, the structural characteristics of rain fields over the sea are poorly documented. Coastal radars offer an opportunity to observe the…”
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Raindrop Size Distribution and Radar Parameters at Cape Verde by Nzeukou, A, Sauvageot, H, Ochou, AD, Kebe, CMF

“…Precipitation measurement using passive or active microwaves from space- or ground-based radar involves hypotheses about the raindrop size distribution (DSD)…”
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