Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Sanchi Nenkova"'
Autor:
Lyubomir Aleksandrov, Nadezhda Rangelova, Nevena Lazarova-Zdravkova, Nelly Georgieva, Mirela Dragnevska, Sanchi Nenkova
Publikováno v:
Materials, Vol 16, Iss 21, p 6936 (2023)
In the present study, copper modified fibreboards were prepared and their existing phase, morphology, and antibacterial behaviour were investigated. The copper content and the physical and mechanical properties of fibreboards (thickness, bending stre
Externí odkaz:
https://doaj.org/article/14f36828493542af9607da11320c5737
Publikováno v:
BioResources, Vol 6, Iss 3, Pp 2356-2365 (2011)
Copper sulfide-containing lignocellulose nanocomposites with improved electroconductivity were obtained. Two methods for preparing the copper sulfide lignocellulose nanocomposites were developed. An optimization of the parameters for obtaining of the
Externí odkaz:
https://doaj.org/article/93556dab692b4633aba6689f6a01d912
Publikováno v:
BioResources, Vol 4, Iss 1, Pp 285-291 (2009)
Lignocellulosic biomass is the most abundant organic raw material in the world. Cellulose and hemicellulose from plants and other biomass can be hydrolyzed to produce sugars. Native lignocellulosic biomass provides limited accessibility to cellulase
Externí odkaz:
https://doaj.org/article/481cfa924f554ebbb32e8e6b3d9d2ef9
Autor:
Temenuzhka Hr . Radoykova, Dimitаr Ch. Vladov, Sanchi Nenkova, Metallurgy, Kl. Ohridski Blvd., Sofia , Bulgaria, Radostin N. Nikolov, Lilia P. Raicheva
Publikováno v:
Cellulose Chemistry and Technology. 53:731-738
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d355fe95d61b7e83bb5455fb0c6bb5a
https://doi.org/10.35812/cellulosechemtechnol.2019.53.71
https://doi.org/10.35812/cellulosechemtechnol.2019.53.71
Autor:
Sanchi Nenkova, P. Vassileva, Ivo Valchev, Dimitar Mehandjiev, Albena Detcheva, Nelly Georgieva, Tsvetelina Angelova, Temenuzhka Hr. Mehandjiev, Metallurgy, Kl. Ohridski Blvd., Sofia , Bulgaria, K. Aleksieva
Publikováno v:
Cellulose Chemistry and Technology. 53:427-433
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dc6348c251281cd9486274e43c341a6
https://doi.org/10.35812/cellulosechemtechnol.2019.53.43
https://doi.org/10.35812/cellulosechemtechnol.2019.53.43
Publikováno v:
Journal of Sol-Gel Science and Technology. 85:330-339
Amorphous hybrid materials with participation of water soluble biopolymer (pectin from apple-AP) and silica derived from tetraethoxy silane (TEOS) were synthesized by sol–gel method. The influence of biopolymer content was determined. The principle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aecba1c6120a5c39b6907328f7dc51d
https://doi.org/10.1007/s10971-017-4556-z
https://doi.org/10.1007/s10971-017-4556-z
Autor:
Dimitar Mehandjiev, Ivalina Avramova, Ivo Valchev, Sanchi Nenkova, T. Hr. Radoykova, K. Aleksieva, P. Vassileva, Albena Detcheva
Publikováno v:
International Journal of Environmental Science and Technology. 13:1319-1328
In the present work, the adsorption of Ag+ ions on hydrolyzed plant biomass (willow, paulownia, wheat straw and maize stalks) was investigated. Chemical analyses were performed to establish the composition of the obtained materials. Adsorption mechan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9923badcf8ac80114294de528cdc641c
https://doi.org/10.1007/s13762-016-0970-y
https://doi.org/10.1007/s13762-016-0970-y
Publikováno v:
Central European Journal of Chemistry, 11, 12, S. 2058-2065
Open Chemistry, Vol 11, Iss 12, Pp 2058-2065 (2013)
Open Chemistry, Vol 11, Iss 12, Pp 2058-2065 (2013)
Shape memory polyurethanes (SMPUs) were synthesized by 4,4′-diphenylmethane diisocyanate (MDI), hexane-1,6-diol (HD), polypropylene glycol (PPG), and recycled polyvinyl butyral (PVB). Dynamic mechanical analysis, differential scanning calorimetry a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0625ac937453ade59abb929057d280e
https://doi.org/10.2478/s11532-013-0331-3
https://doi.org/10.2478/s11532-013-0331-3
Autor:
Lyudmila Kabaivanova, Sanchi Nenkova, Isabel M. Miranda Salvado, Georgi Chernev, Nadezhda Rangelova, Aiying Wu, Petar Djambazki, Maria Helena Fernandes
Publikováno v:
Journal of Sol-Gel Science and Technology. 58:619-624
The purpose of the present work is the sol–gel synthesis, structure characterization and potential application of hybrid biomaterials based on silica precursor (MTES) and natural polymers such as gelatin or pectin. The structure formation in the bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0394a1577404abc80cb56cea8da1eed2
https://doi.org/10.1007/s10971-011-2436-5
https://doi.org/10.1007/s10971-011-2436-5
Production of phenol compounds by alkaline treatment of technical hydrolysis lignin and wood biomass
Publikováno v:
Chemistry of Natural Compounds. 44:182-185
Aqueous alkaline depolymerization of technical hydrolysis lignin (THL) was carried out with a 5% NaOH solution at a temperature of 180°C for 6 hours, the ratio between the biomass and depolymerizing agent being 1:8. The poplar wood sawdust was treat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e839b676236293e09ec1fb19e740aeb
https://doi.org/10.1007/s10600-008-9009-z
https://doi.org/10.1007/s10600-008-9009-z