Zobrazeno 1 - 10
of 153
pro vyhledávání: '"Georgeta Voicu"'
Publikováno v:
Results in Engineering, Vol 24, Iss , Pp 103085- (2024)
The objective of this research is the improvement of the mechanical strengths of the alkali activated slag composites with polyethylene terephthalate (PET) flakes content. The main drawback when large PET flakes (2–9 mm) are used in these composite
Externí odkaz:
https://doaj.org/article/e4f058245c064fb48da1625005592309
Autor:
Andreia Cucuruz, Cristina-Daniela Ghițulică, Georgeta Voicu, Cătălina-Alexandra Bogdan, Vasilica Dochiu, Roxana Cristina Popescu
Publikováno v:
Ceramics, Vol 6, Iss 4, Pp 2333-2351 (2023)
Bioceramics are the most promising materials used for hard tissue reconstruction. In this study, wollastonite/hydroxyapatite (HAp/WS)-type composite ceramic structures were synthesized with the aim of reaching a material with improved properties for
Externí odkaz:
https://doaj.org/article/9bdf3f4ea0624582bd3d51024475af75
Autor:
Ştefania Chiriac, Roxana-Cristina Popescu, Mihnea-Mihăiță Pele, Cristina-Daniela Ghiţulică, Andreia Cucuruz, Ruxandra-Elena Geanaliu-Nicolae, Izabela-Cristina Stancu, Georgeta Voicu, Lucian-Toma Ciocan
Publikováno v:
Journal of Functional Biomaterials, Vol 15, Iss 1, p 19 (2024)
This study explores the potential utilization of walstromite (BaCa2Si3O9) as a foundational material for creating new bioceramics in the form of scaffolds through 3D printing technology. To achieve this objective, this study investigates the chemical
Externí odkaz:
https://doaj.org/article/ecc3cbd93c634e408e51f04b770cdb9f
Autor:
Petre Chipurici, Alexandru Vlaicu, Ioan Călinescu, Mircea Vînătoru, Cristina Busuioc, Adrian Dinescu, Adi Ghebaur, Edina Rusen, Georgeta Voicu, Maria Ignat, Aurel Diacon
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract This study aimed to develop a facile synthesis procedure for heterogeneous catalysts based on organic guanidine derivatives superbases chemically grafted on silica-coated Fe3O4 magnetic nanoparticles. Thus, the three organosilanes that were
Externí odkaz:
https://doaj.org/article/84147a0173fa4b7a8319ad57b1059da8
Autor:
Nicolae Costin Mociu, Carmen Elena Maftei, Ionela Carazeanu Popovici, Georgeta Voicu, Constantin Buta, Madalina Stanescu
Publikováno v:
Buildings, Vol 13, Iss 3, p 672 (2023)
This study examines the mortar materials used in the construction of the walls at the Archaeological Roman Fortification site (Ovidiu, Romania) on the shore of Siutghiol Lake. Several analyses were conducted to determine the mortars’ basic physical
Externí odkaz:
https://doaj.org/article/8e3fd0365a9a467fbee235f5fe654ca2
Autor:
Nicoleta Florentina Cirstea, Alina Badanoiu, Georgeta Voicu, Robert Catalin Ciocoiu, Aurelian Cristian Boscornea
Publikováno v:
Applied Sciences, Vol 12, Iss 24, p 12620 (2022)
This paper presents the main properties of magnesium phosphate cements (MPCs) to be used as coatings for passive fire protection of steel structures. The influence of various additions, i.e., waste glass powder, fly ash, a styrene–acrylic dispersio
Externí odkaz:
https://doaj.org/article/ac1289b5bba64eeb8b78c32de93ca5b9
Autor:
Andrada-Ioana Damian-Buda, Cristina-Daniela Ghițulică, Andreia Cucuruz, Georgeta Voicu, Daniela Culita, Victor Fruth-Oprișan, Lucian Toma Ciocan
Publikováno v:
Journal of Functional Biomaterials, Vol 13, Iss 4, p 180 (2022)
Mesoporous bioactive glass nanoparticles (MBGNs) are widely recognized for their ability to bond to hard tissue, while the ions released from the BG structure enhance specific cellular pathways. In this study, the SiO2-P2O5-CaO-MgO-ZnO system was use
Externí odkaz:
https://doaj.org/article/8b8673139997491cb564c359e57fd864
Autor:
Andrada-Elena Alecu, Claudiu-Constantin Costea, Vasile-Adrian Surdu, Georgeta Voicu, Sorin-Ion Jinga, Cristina Busuioc
Publikováno v:
Gels, Vol 8, Iss 9, p 574 (2022)
In this work, calcium magnesium silicate ceramics were processed through the sol–gel method in order to study the crystalline and morphological properties of the resulting materials in correlation with the compositional and thermal parameters. Tetr
Externí odkaz:
https://doaj.org/article/f3b321d7fbf84eccb1dd7d7f68948558
Autor:
Rebeca Leu Alexa, Andreia Cucuruz, Cristina-Daniela Ghițulică, Georgeta Voicu, Liliana-Roxana Stamat (Balahura), Sorina Dinescu, George Mihail Vlasceanu, Horia Iovu, Andrada Serafim, Raluca Ianchis, Lucian-Toma Ciocan, Marieta Costache
Publikováno v:
Nanomaterials, Vol 12, Iss 19, p 3420 (2022)
As bone diseases and defects are constantly increasing, the improvement of bone regeneration techniques is constantly evolving. The main purpose of this scientific study was to obtain and investigate biomaterials that can be used in tissue engineerin
Externí odkaz:
https://doaj.org/article/3f4046eef24048958a7df0b90f7f9e5c
Autor:
Gabriela Petrisor, Denisa Ficai, Ludmila Motelica, Roxana Doina Trusca, Alexandra Cătălina Bîrcă, Bogdan Stefan Vasile, Georgeta Voicu, Ovidiu Cristian Oprea, Augustin Semenescu, Anton Ficai, Mircea Ionut Popitiu, Irina Fierascu, Radu Claudiu Fierascu, Elena Lacramioara Radu, Lilia Matei, Laura Denisa Dragu, Ioana Madalina Pitica, Mihaela Economescu, Coralia Bleotu
Publikováno v:
Nanomaterials, Vol 12, Iss 10, p 1648 (2022)
This paper aimed to develop two types of support materials with a mesoporous structure of mobile crystalline matter (known in the literature as MCM, namely MCM-41 and MCM-48) and to load them with gallic acid. Soft templating methodology was chosen f
Externí odkaz:
https://doaj.org/article/75355e326cb542e98f50968cb4da7b2d