Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Daniel NJOPWOUO"'
Autor:
Mamadou Yaya BALDE, Njiomou Chantale DJANGANG, Ousmane Tougué BALDE, Philippe BLANCHART, Daniel NJOPWOUO
Publikováno v:
Journal of Materials and Engineering Structures, Vol 9, Iss 2, Pp 251-264 (2022)
This work presents, firstly, the results of pozzolanicity tests on two varieties of clay, codified respectively ABD and ARD, taken at Débélé. In a second step, the physical properties of the mortars obtained from these two clays by substitution of
Externí odkaz:
https://doaj.org/article/da1bb3b9f26c4ec39d53f3df59184fd8
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 4, Iss 2, Pp 105-113 (1990)
Bull. Chem. Soc. Ethiop., 4(2), 105-113 (1990).
Externí odkaz:
https://doaj.org/article/b0cf572282194edc984a36c4ff5c10e2
Autor:
Jeanne Solange Ntchayi Tankeu, Guy Molay Tchapga Gnamsi, Arlin Bruno Tchamba, Patrick Lemougna Ninla, Elie Kamseu, Marcel Guidana, George Elambo Nkeng, Dana Kausik, Daniel Njopwouo
This study highlights the alteration of refractory bricks for anode baking furnace for unused and used bricks after 96 baking cycles. The chemical composition of the unused bricks included silica (51.37wt.%) and alumina (34.05wt.%). A decrease of com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc07ab315d635d4545e5a7eacadecead
https://doi.org/10.21203/rs.3.rs-2109645/v1
https://doi.org/10.21203/rs.3.rs-2109645/v1
Autor:
Mohamed Mouafon, Daniel Njopwouo, Gisèle Laure Lecomte-Nana, Dayirou Njoya, Nicolas Tessier-Doyen, André Njoya
Publikováno v:
Clays and Clay Minerals
Clays and Clay Minerals, Clay Minerals Society, 2021, 69 (3), pp.339-353. ⟨10.1007/s42860-021-00131-y⟩
Clays and Clay Minerals, Clay Minerals Society, 2021, 69 (3), pp.339-353. ⟨10.1007/s42860-021-00131-y⟩
Drinking-water supply remains a significant challenge in tropical areas; to help meet this challenge, the purpose of the present study was to manufacture low-thermal conductivity ceramic membranes suitable for the retention/removal of particles found
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b383ec4bba7b4789b571cb2fc1799a7b
https://doi.org/10.1007/s42860-021-00131-y
https://doi.org/10.1007/s42860-021-00131-y
Autor:
Chantale Njiomou Djangang, Philippe Blanchart, Daniel Njopwouo, Aissatou Bah, Mamadou Yaya Balde
Publikováno v:
International Journal of Applied Ceramic Technology. 18:1033-1042
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::319826b18085b3c8ed9b9da0e2848e96
https://doi.org/10.1111/ijac.13669
https://doi.org/10.1111/ijac.13669
Autor:
Mamadou Yaya Balde, Chantale Njiomou Djangang, Philippe Blanchart, Ramatoulaye Binta Diallo, Daniel Njopwouo
Publikováno v:
Journal of Materials Science and Chemical Engineering. :9-22
Assessing the potential uses as industrial mineral, bauxite from Debele, Guinea, has been characterised by chemical and mineralogical analyses, the determination of the amorphous content, the rate of portlandite consumption in an aqueous solution, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d14b47f81966a0b95fe20062d70c7f9
https://doi.org/10.4236/msce.2021.93002
https://doi.org/10.4236/msce.2021.93002
Autor:
Maryse Bacquet, Carine Feudjio Memenfo, Mickaël Maton, Jean Aimé Mbey, Nicolas Tabary, Daniel Njopwouo, Stephanie Degoutin, Bernard Martel, Frederic Cazaux
Publikováno v:
Journal of Materials Science and Chemical Engineering. :21-40
Ciprofloxacin (CFX) was loaded on Bana clay (Cameroon) and CFX loadedclays have been evaluated as drug delivery system. Raw clays and CFX loaded compounds have been characterized by some physico-chemicals methods. In vitro release studies have been d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2e497ca66b42d326ca314f3789eb50d
https://doi.org/10.4236/msce.2021.98003
https://doi.org/10.4236/msce.2021.98003
Publikováno v:
Journal of Materials Science and Chemical Engineering. :1-14
The present work reports the effect of carbonate addition to iron rich kaolinite on the phase transformation during firing. Mineralogical, thermal (including DTA-TGA and dilatometric) and physico-mechanical analyses were performed on fired product ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7f7fe76179db748d80e7aee3dd854a5
https://doi.org/10.4236/msce.2019.711001
https://doi.org/10.4236/msce.2019.711001
Autor:
Hubert Rahier, A. Madi Balo, Antigoni Katsiki, Alessandra Mobili, U. Melo Chinje, Daniel Njopwouo, Nathalie Fagel
Publikováno v:
Construction and Building Materials. 191:1011-1022
Inorganic polymers were synthesised using metakaolin and cotton shell ash as activator. In this way, the negative environmental impact of sodium or potassium silicate solutions as alkaline activators can be eliminated. Phase transformations investiga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dea6f4fe41d91983eafb662db43ad90a
https://doi.org/10.1016/j.conbuildmat.2018.10.047
https://doi.org/10.1016/j.conbuildmat.2018.10.047
Autor:
Severin Tabou Tiam, Jean Aimé Mbey, Philippe Blanchart, Daniel Njopwouo, Cyprien Joel Ekani, Chantale Njiomou Djangang
Publikováno v:
SN Applied Sciences. 2
Two geopolymer binders that did not exhibit efflorescence, even after partial immersion in water for more than 45 days were successfully obtained from a mixture of aluminosilicates (kaolin and bauxite) with talc, and a mixture solution of potassium h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42975df1b2c531e2d8f6383c5098b85e
https://doi.org/10.1007/s42452-020-03959-6
https://doi.org/10.1007/s42452-020-03959-6