Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Bernard De Jeso"'
Autor:
Péguy Starlin Engozogho Anris, Bikoro Bi Athomo Arsène, Bernard De Jeso, Aristide Gervais Akagah, Rodrigue Safou Tchiama
Publikováno v:
Journal of the Indian Academy of Wood Science. 16:73-86
In order to understand the potential of some tropical hardwood wastes as source of utilizable lignins, the chemical structure of acetylated dioxane acid lignins from Testulea gabonensis Pellegr (T. gabonensis), Julbernardia pellegriniana (J. pellegri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94e220240c7807e7e30601d8b287fc10
https://doi.org/10.1007/s13196-019-00239-8
https://doi.org/10.1007/s13196-019-00239-8
Autor:
Arsène Bikoro Bi Athomo, Patrice Soulounganga, Rodrigue Safou Tchiama, Bernard De Jeso, Timoléon Andzi Barhé, Aristide Gervais Akagah, Bertrand Charrier, Péguy Starlin Engozogho Anris
Publikováno v:
Journal of the Indian Academy of Wood Science. 15:162-171
The natural durability of the heartwoods from Testulea gabonensis Pellgr. (T. gabonensis), Julbernardia pellegriniana (J. pellegriniana), Aucoumea klaineana Pierre (A. klaineana), and Tieghemella africana Pierre (T. africana) widely used for windows,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d327b725f341d89313a1d15146cf9ebc
https://doi.org/10.1007/s13196-018-0222-5
https://doi.org/10.1007/s13196-018-0222-5
Publikováno v:
Journal of Chitin and Chitosan Science. 1:116-123
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47f05cac38761fe84aabb15387e5abc8
https://doi.org/10.1166/jcc.2013.1013
https://doi.org/10.1166/jcc.2013.1013
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 104:161-164
Enzymatic acylation of cyclic secondary amines was performed in organic solvant. Best results were obtained with Horse Liver Acetonic Powder (HLAP). Acyclic secondary amines were not substrate for several lipases or esterases.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b30d33c2fc0fc4fc871d436f71c4947
https://doi.org/10.1002/bscb.19951040309
https://doi.org/10.1002/bscb.19951040309
Autor:
Saint-Bickolard Mabicka Iwangou, Arsène Bikoro Bi Athomo, Patrice Soulounganga, Aristide Gervais Akagah, Péguy Starlin Engozogho Anris, Rodrigue Safou-Tchiama, Sébastien Ngwa Obame, Timoléon Andzi Barhé, Bernard De Jeso
Publikováno v:
International Journal of Biological and Chemical Sciences; Vol 11, No 6 (2017); 3110-3131
In order to understand the chemical reactivity and the relative susceptibility of I α and I β cellulose allomorphs of some tropical hardwoods with coupling agents bearing succinic moiety, their cellulose fibers were isolated and esterified by succi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6131b3cf43d1b3cdf6640bd2486ad3b5
https://doi.org/10.4314/ijbcs.v11i6.44
https://doi.org/10.4314/ijbcs.v11i6.44
Autor:
Michel Pétraud, Gilles Sèbe, Bernard De Jeso, Rodrigue Safou-Tchiama, Aristide Gervais Akagah
Publikováno v:
Industrial Crops and Products. 26:173-184
From the perspective of the utilization of the wood waste from African timber industry in the field of wood/polymer composites, the reactivity of four tropical hardwood species from Gabon, Tesula gabonensis Pellegr (T. gabonensis), Holoptelea grandis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d69b5c060de12fc4f34b6ec5dbe3112
https://doi.org/10.1016/j.indcrop.2007.03.001
https://doi.org/10.1016/j.indcrop.2007.03.001
Publikováno v:
Holzforschung. 61:51-59
An amino-silicone in the form of a micro- and a macro-emulsion (average particle size 40 and 120 nm, respectively) was tested in impregnation of solid wood. During vacuum-pressure impregnation, the uptake of 5% emulsions was only slightly reduced com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3087641c8311e2933e1dc70ba0f19074
https://doi.org/10.1515/hf.2007.009
https://doi.org/10.1515/hf.2007.009
Publikováno v:
Reactive and Functional Polymers. 66:728-739
Grafting of phosphate groups has been investigated as a means to render biomedical polymers able to induce the formation of an apatite layer. In the present investigation, regenerated cellulose hydrogels were surface modified by phosphorylation using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c98adfdb48da364610266d1a1740f41
https://doi.org/10.1016/j.reactfunctpolym.2005.10.027
https://doi.org/10.1016/j.reactfunctpolym.2005.10.027
Autor:
Max Ratier, Gérard Daudé, Michel Pétraud, Nicole Labbé, Jean-Claude Lartigue, Bernard De Jeso
Publikováno v:
Holzforschung. 60:265-270
The time domain of 1H NMR spectroscopy allows straightforward editing of the T 2 relaxation profiles in maritime pine wood. A new method from the Carr-Purcell-Meiboom-Gill sequence is proposed to measure the amount and distribution of water in wood,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93c1467ddb84cd6a6a73fd009797eab1
https://doi.org/10.1515/hf.2006.043
https://doi.org/10.1515/hf.2006.043
Publikováno v:
Holzforschung. 59:397-404
The chemical modification of maritime pine sapwood (Pinus pinaster Soland) with 3-isocyanatopropyltriethoxysilane (IPTES) and its subsequent hydrolysis were investigated. The formation of urethane linkages after the carbamoylation reaction was confir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b244a2a7679be51471ee27782f709957
https://doi.org/10.1515/hf.2005.065
https://doi.org/10.1515/hf.2005.065