Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Bogdan A. Sava"'
Autor:
Sinziana-Andreea Anghel, Mihai Oane, Cristian N. Mihăilescu, Bogdan A. Sava, Mihail Elişa, Natalia Mihăilescu, Dorina Ticoş, Alexandra M. I. Trefilov, Carmen Ristoscu, Ana V. Filip, Ion N. Mihăilescu
Publikováno v:
Metals, Vol 13, Iss 10, p 1775 (2023)
The ultrafast fs laser pulse heating of thin metal films is studied for the first time using the two-temperature model on the basis of the Fokker–Planck formalism. The incident laser radiation is multi-modal, while the electron temperature is descr
Externí odkaz:
https://doaj.org/article/b9879a7c9d0d48708b6253059fb68209
Autor:
Mihai Oane, Bogdan A. Sava, Muhammad Arif Mahmood, Natalia Mihailescu, Sinziana Anghel, Ana V. Filip, Ion N. Mihailescu, Cristian N. Mihailescu, Carmen Ristoscu
Publikováno v:
Heliyon, Vol 8, Iss 11, Pp e11765- (2022)
A novel analytical formalism is proposed based upon Quantum heat transport equation in order to describe the femtoseconds/picoseconds laser pulses interaction with the Deoxyribonucleic acid (DNA). The formalism generates solutions based upon inputs a
Externí odkaz:
https://doaj.org/article/5c2b103bd5804d67b435702725feefee
Autor:
Cristian N. Mihailescu, Mihai Oane, Bogdan A. Sava, Andrei C. Popescu, Mihail Elisa, Muhammad Arif Mahmood, Natalia Mihailescu, Ana V. Filip, Sinziana Andreea Anghel, Ion N. Mihailescu, Carmen Ristoscu
Publikováno v:
Crystals, Vol 12, Iss 8, p 1155 (2022)
A semi-analytical-numerical solution is theorized to describe the laser additive manufacturing via laser-bulk ceramic interaction modeling. The Fourier heat equation was used to infer the thermal distribution within the ceramic sample. Appropriate bo
Externí odkaz:
https://doaj.org/article/be6347cc0e8e4fc0a27263e4e8b22466
Autor:
Anca M. Bucă, Mihai Oane, Ion N. Mihăilescu, Muhammad Arif Mahmood, Bogdan A. Sava, Carmen Ristoscu
Publikováno v:
Nanomaterials, Vol 10, Iss 7, p 1319 (2020)
A Multiple-Temperature Model is proposed to describe the flash laser irradiation of a single layer of graphene. Zhukovsky’s mathematical approach is applied to solve the Fourier heat equations based upon quantum concepts, including heat operators.
Externí odkaz:
https://doaj.org/article/d87756f9399d4d3884b7b275703ad2bb
Autor:
Anca M. Bucă, Mihai Oane, Muhammad Arif Mahmood, Ion N. Mihăilescu, Andrei C. Popescu, Bogdan A. Sava, Carmen Ristoscu
Publikováno v:
Metals, Vol 10, Iss 5, p 606 (2020)
This work is devoted to the electron temperature variation in metals through interaction with femtosecond laser pulses. Our study was inspired by the last mathematical breakthroughs regarding the exact analytical solutions of the heat equation in the
Externí odkaz:
https://doaj.org/article/a0d705a799be48a18362d0778674af10
Autor:
Ioana Lavinia Lixandru Matei, Bogdan Alexandru Sava, Codruta Sarosi, Cristina Dușescu-Vasile, Daniela Roxana Popovici, Andreea Iuliana Ionescu, Dorin Bomboș, Marian Băjan, Rami Doukeh
Publikováno v:
Nanomaterials, Vol 14, Iss 16, p 1323 (2024)
Bioactive glass is currently considered a material with a high biocompatibility and has been used both in the field of bone regeneration and in the preparation of cosmetic products with the controlled release of active compounds. The present work inv
Externí odkaz:
https://doaj.org/article/a866ce75256949f3923339f2cd096f85
Autor:
Adrian Ionut Nicoara, Mihai Eftimie, Mihail Elisa, Ileana Cristina Vasiliu, Cristina Bartha, Monica Enculescu, Mihaela Filipescu, César Elosúa Aguado, Diego Lopez, Bogdan Alexandru Sava, Mihai Oane
Publikováno v:
Nanomaterials, Vol 12, Iss 17, p 3006 (2022)
IV-VI semiconductor quantum dots embedded into an inorganic matrix represent nanostructured composite materials with potential application in temperature sensor systems. This study explores the optical, structural, and morphological properties of a n
Externí odkaz:
https://doaj.org/article/82bd15b46a2f4b699e94e587d0c51554
Autor:
Olga Shikimaka, Mihaela Bivol, Bogdan A Sava, Marius Dumitru, Christu Tardei, Beatrice G Sbarcea, Daria Grabco, Constantin Pyrtsac, Daria Topal, Andrian Prisacaru, Vitalie Cobzac, Viorel Nacu
Publikováno v:
Beilstein Journal of Nanotechnology. 13:1490-1504
This research work focuses on the fabrication and study of a series of nanocomposites consisting of two types of hydroxyapatite (HA), obtained by precipitate (HAP) and sol–gel (HAG) methods, and a boro-silico-phosphate bioglass. The microstructure
Autor:
Bogdan Alexandru Sava, Ion C. Sandu, Bogdan Stefanita Calin, Lucica Boroica, Ana Violeta Filip, Marius Catalin Dinca, Alexandra Maria isabel Trefilov, Claudiu Teodor T. Fleaca, Marius Dumitru, Marian Zamfirescu, Dumitru Ulieru
Publikováno v:
Smart Materials for Opto-Electronic Applications.
Autor:
Ana Violeta Filip, Alexandra Maria Isabel Trefilov, Lucica Boroica, Marius Catalin Dinca, Mihail Elisa, Ileana Cristina Vasiliu, Nicolae Tigau, Simona Brajnicov, Marius Dumitru, Catalin Luculescu, Oana Gherasim (Fufa), Bogdan Alexandru Sava
Publikováno v:
Journal of Non-Crystalline Solids. 613:122372