Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Bogdan Lungu"'
Autor:
Ovidiu-Alexandru Capraru, Bogdan Lungu, Marian Virgolici, Mihai Constantin, Mihalis Cutrubinis, Laura Chirila, Ludmila Otilia Cinteza, Ioana Stanculescu
Publikováno v:
Materials, Vol 15, Iss 8, p 2734 (2022)
In this work, cotton textile materials were impregnated by immersion with three different nanocomposites: Ag/chitosan, Ag/polyvinylpyrrolidone, and ZnO/polyvinylpyrrolidone and irradiated with a 60Co gamma source. After the nanoparticles impregnation
Externí odkaz:
https://doaj.org/article/bb251965db434e658163189619c8882d
Autor:
Ion Bogdan LUNGU
Publikováno v:
Annals: Series on engineering sciences (Academy of Romanian Scientists), Vol 16, Iss 1, Pp 47-52 (2024)
Radiation processing of polymers has many technical and environmental advantages. The low pollution and low energy consumption of radiation processing of polymers, along with its potential in polymer recycling makes it a green technology. Modificatio
Externí odkaz:
https://doaj.org/article/11eded5a05934dee93034b4bdce8f97b
Autor:
Elena Manaila, Gabriela Craciun, Daniel Ighigeanu, Ion Bogdan Lungu, Marius Daniel Dumitru Grivei, Maria Daniela Stelescu
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 13, p 6925 (2022)
Composites based on natural rubber reinforced with mineral (precipitated silica and chalk) and organic (sawdust and hemp) fillers in amount of 50 phr were obtained by peroxide cross-linking in the presence of trimethylolpropane trimethacrylate and ir
Externí odkaz:
https://doaj.org/article/7da9a8e237b44dc5aa81cf287730cee0
Autor:
Ion Bogdan LUNGU
Publikováno v:
Annals: Series on engineering sciences (Academy of Romanian Scientists), Vol 10, Iss 2, Pp 51-60 (2018)
Nowadays, radiation processing with gamma rays is a well established technology, reaching a commercial use since the 1960s . It is widely used in almost every domain, mainly for sterilization in the medical and pharmaceutical industry, preservation
Externí odkaz:
https://doaj.org/article/495771b1f3544181bc8984887ff89dd7
Autor:
Elena Manaila, Gabriela Craciun, Ion Bogdan Lungu, Marius Daniel Dumitru Grivei, Stelescu Stelescu
Publikováno v:
Materials; Volume 16; Issue 6; Pages: 2152
Composites based on natural rubber and plasticized starch obtained by the conventional method of sulfur cross-linking using four types of vulcanization accelerators (Diphenyl guanidine, 2-Mercaptobenzothiazole, N-Cyclohexyl-2-benzothiazole sulfenamid
Publikováno v:
Polymers
Volume 15
Issue 4
Pages: 1034
Volume 15
Issue 4
Pages: 1034
The historical artefacts of parchment are prone to degradation if the storage conditions are improper due to the collagen structure having a limited stability under physical, chemical, and biological agent attacks. The parchment structure is difficul
Autor:
Daniel Ighigeanu, Gabriela Craciun, Elena Manaila, Ion Bogdan Lungu, Maria Daniela Stelescu, Marius Dumitru
Publikováno v:
Polymers
Polymers, Vol 13, Iss 1950, p 1950 (2021)
Polymers; Volume 13; Issue 12; Pages: 1950
Polymers, Vol 13, Iss 1950, p 1950 (2021)
Polymers; Volume 13; Issue 12; Pages: 1950
Polymeric composites based on natural rubber (NR) and plasticized starch (PS) obtained by peroxide cross-linking have been subjected to electron beam irradiation in order to investigate their degradation. The amount of PS ranged from 10 to 50 phr and
Publikováno v:
The International Conference on Advanced Materials and Systems.
Publikováno v:
The International Conference on Advanced Materials and Systems.
Autor:
Maria-Mihaela Manea, Ion-Bogdan Lungu
Publikováno v:
ACTA Universitatis Cibiniensis. 66:94-97
In today’s market, due to an increasing competitiveness, quality management has set itself as an indispensable tool and a reference point for every business. It is ultimately focused on customer satisfaction which is a stringent factor for every bu