Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Georgiana Bulai"'
Autor:
Diana Mardare, Mariana Frenti, Carmen Mita, Nicoleta Cornei, Georgiana Bulai, Marius Dobromir, Alexandr Doroshkevich, Abdullah Yildiz
Publikováno v:
Materials, Vol 17, Iss 15, p 3652 (2024)
Amorphous ZrO2 thin films with increasing Mg content were deposited on quartz substrates, by dip coating method. The films are transparent in the visible domain and absorbent in UV, with an optical band gap that decreases with the increase of Mg cont
Externí odkaz:
https://doaj.org/article/b91f59c53fe54067b4ac1b4a68536465
Autor:
Alexandru Cocean, Georgiana Cocean, Cristina Postolachi, Silvia Garofalide, Daniela Angelica Pricop, Bogdanel Silvestru Munteanu, Georgiana Bulai, Nicanor Cimpoesu, Iuliana Motrescu, Vasile Pelin, Razvan Vasile Ababei, Dan-Gheorghe Dimitriu, Iuliana Cocean, Silviu Gurlui
Publikováno v:
Quantum Beam Science, Vol 8, Iss 2, p 16 (2024)
Crystalline silver thin layers were obtained using high-energy pulsed laser ablation without the heating of the deposition substrate. The fluid Plateau–Rayleigh (PRI), Rayleigh–Taylor (RTI), and Richtmyer–Meshkov (RMI) instabilities, as well as
Externí odkaz:
https://doaj.org/article/b8455cb686c64cb1abfabd2eb4a01860
Autor:
Teodora Matei, Vasile Tiron, Roxana Jijie, Georgiana Bulai, Ioana-Laura Velicu, Daniel Cristea, Valentin Crăciun
Publikováno v:
Frontiers in Chemistry, Vol 11 (2023)
In the global context of climate change and carbon neutrality, this work proposes a strategy to improve the light absorption of photocatalytic water-splitting materials into the visible spectrum by anion doping. In this framework, reactive high power
Externí odkaz:
https://doaj.org/article/fd69c91434d74be8a1b5dfc5ca7e64a5
Autor:
Carmen Mita, Nicoleta Cornei, Mariana Frenti, Georgiana Bulai, Marius Dobromir, Vasile Tiron, Aleksandr S. Doroshkevich, Diana Mardare
Publikováno v:
Materials, Vol 16, Iss 17, p 5901 (2023)
In this paper, we investigate the decomposition of a toxic organic compound, Rhodamine B, by the photocatalytic activities of undoped and nitrogen-doped ZrO2 thin films, deposited using the HiPIMS technique. The investigation was performed in the pre
Externí odkaz:
https://doaj.org/article/cab06a5792cb400188b79018b32abd22
Autor:
Laid Kadri, Abdelkader Abderrahmane, Georgiana Bulai, Aurelian Carlescu, Corneliu Doroftei, Iuliana Motrescu, Silviu Gurlui, Liviu Leontie, Mohamed Adnane
Publikováno v:
Nanomaterials, Vol 13, Iss 10, p 1632 (2023)
TiO2–SiO2 nanocomposite thin films have gained the attention of the scientific community due to their unique physical and chemical properties. In this paper, we report on the fabrication and characterization of a TiO2–SiO2 nanocomposite disk-shap
Externí odkaz:
https://doaj.org/article/d85923326ad546b9850114660ecf83ce
Autor:
Stefan Irimiciuc, Marius Gabriel Zaharia, Ramona Cimpoesu, Georgiana Bulai, Silviu Octavian Gurlui, Nicanor Cimpoesu
Publikováno v:
Materials, Vol 15, Iss 13, p 4673 (2022)
Ceramic thin films with variable thicknesses have been used in many applications. In order to protect the petroleum transportation pipes against the harmful H2S action, two ceramic materials as thin layers are proposed. In this article, pulsed laser
Externí odkaz:
https://doaj.org/article/420c34a8ae104a69a73b653821ceaf80
Autor:
Vasile Tiron, Mihai Alexandru Ciolan, Georgiana Bulai, Gabriela Mihalache, Florin Daniel Lipsa, Roxana Jijie
Publikováno v:
Nanomaterials, Vol 12, Iss 13, p 2193 (2022)
Flower-like ZnO architectures assembled with many nanorods were successfully synthesized through Thermionic Vacuum Arc, operated both in direct current (DC-TVA) and a pulsed mode (PTVA), and coupled with annealing in an oxygen atmosphere. The prepare
Externí odkaz:
https://doaj.org/article/45d96e612d4349569ad909b77067625b
Autor:
Georgiana Cocean, Alexandru Cocean, Cristina Postolachi, Silvia Garofalide, Georgiana Bulai, Bogdanel Silvestru Munteanu, Nicanor Cimpoesu, Iuliana Cocean, Silviu Gurlui
Publikováno v:
Polymers, Vol 14, Iss 8, p 1537 (2022)
High-power laser irradiation interaction with natural polymers in biocomposites and Laser-Induced Chitin Deacetylation (LICD) was studied in this work, in order to produce thin films consisting of chitosan composite. The new method can lead to a cutt
Externí odkaz:
https://doaj.org/article/bdbd9047e13643ceb7b3cfdd442daebc
Room Temperature Deposition of Nanocrystalline SiC Thin Films by DCMS/HiPIMS Co-Sputtering Technique
Autor:
Vasile Tiron, Elena-Laura Ursu, Daniel Cristea, Georgiana Bulai, George Stoian, Teodora Matei, Ioana-Laura Velicu
Publikováno v:
Nanomaterials, Vol 12, Iss 3, p 512 (2022)
Due to an attractive combination of chemical and physical properties, silicon carbide (SiC) thin films are excellent candidates for coatings to be used in harsh environment applications or as protective coatings in heat exchanger applications. This w
Externí odkaz:
https://doaj.org/article/92d094c5d20d494d9b6d0a1b68e4ad26
Autor:
Alexandru Cocean, Cristina Postolachi, Georgiana Cocean, Georgiana Bulai, Bogdanel Silvestru Munteanu, Nicanor Cimpoesu, Iuliana Cocean, Silviu Gurlui
Publikováno v:
Applied Sciences, Vol 12, Iss 3, p 983 (2022)
In this paper, several researches were undertaken related to a violent phenomenon, characterized by a sonic boom, felt on an area of at least 500 km2, shortly followed by the fall of rock fragments that were then recovered from the ground. These pres
Externí odkaz:
https://doaj.org/article/43af6a8c556b46b294ccff6e0f97ca03