Zobrazeno 1 - 10
of 573
pro vyhledávání: '"Ion N, Mihailescu"'
Autor:
Muhammad Arif Mahmood, Asif Ur Rehman, Marwan Khraisheh, Metin U. Salamci, Rashid Ur Rehman, Uzair Sajjad, Carmen Ristoscu, Andrei C. Popescu, Mihai Oane, Ion N. Mihailescu
Publikováno v:
Crystals, Vol 14, Iss 9, p 763 (2024)
Additive manufacturing (AM) has profoundly impacted modern engineering and materials science by enabling unparalleled control over microstructures, customization, and material properties [...]
Externí odkaz:
https://doaj.org/article/0a28c9b154c844a1ae22552496471fab
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:
Muhammad Arif Mahmood, Andrei C. Popescu, Mihai Oane, Asma Channa, Sabin Mihai, Carmen Ristoscu, Ion N. Mihailescu
Publikováno v:
Results in Physics, Vol 26, Iss , Pp 104440- (2021)
Recent scientific and technological developments demonstrated that laser melting deposition (LMD) could yield near-net-shape parts by additive manufacturing. Under context, it was noticed that the primary operating parameters (i.e., laser power, scan
Externí odkaz:
https://doaj.org/article/af222afb721041fab8559be129f665ad
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:
Muhammad Arif Mahmood, Andrei C. Popescu, Mihai Oane, Diana Chioibasu, Gianina Popescu-Pelin, Carmen Ristoscu, Ion N. Mihailescu
Publikováno v:
Results in Physics, Vol 22, Iss , Pp 103880- (2021)
Many of the significant mechanical properties of stainless steel, including ultimate tensile strength, yield strength and hardness, the ductile–brittle transition temperature, and susceptibility to environmental embrittlement, can be improved by gr
Externí odkaz:
https://doaj.org/article/71c16787b9954d44867f8755d2b6925e
Autor:
Irina Negut, Carmen Ristoscu, Tatiana Tozar, Mihaela Dinu, Anca Constantina Parau, Valentina Grumezescu, Claudiu Hapenciuc, Marcela Popa, Miruna Silvia Stan, Luminita Marutescu, Ion N. Mihailescu, Mariana Carmen Chifiriuc
Publikováno v:
Pharmaceutics, Vol 14, Iss 6, p 1175 (2022)
Coatings are an attractive and challenging selection for improving the bioperformance of metallic devices. Composite materials based on bioglass/antibiotic/polymer are herein proposed as multifunctional thin films for hard tissue implants. We deposit
Externí odkaz:
https://doaj.org/article/b3d261ec8d7e4df687de7298564ffb8e
Autor:
Muhammad Arif Mahmood, Asif Ur Rehman, Carmen Ristoscu, Mehmet Demir, Gianina Popescu-Pelin, Fatih Pitir, Metin Uymaz Salamci, Ion N. Mihailescu
Publikováno v:
Nanomaterials, Vol 12, Iss 5, p 802 (2022)
This study presents two analytical models for the laser powder bed fusion (LPBF) process. To begin, the single layer’s dimensions were measured using principal operating conditions, including laser power, laser scanning speed, powder layer thicknes
Externí odkaz:
https://doaj.org/article/28e60d87c8e84d538e7c161cac94ff54
Autor:
Asif Ur Rehman, Muhammad Arif Mahmood, Peyman Ansari, Fatih Pitir, Metin Uymaz Salamci, Andrei C. Popescu, Ion N. Mihailescu
Publikováno v:
Metals, Vol 11, Iss 12, p 2023 (2021)
Powder spattering and splashing in the melt pool are common phenomena during Laser-based Powder Bed Fusion (LPBF) of metallic materials having high fluidity. For this purpose, analytical and computational fluid dynamics (CFD) models have been deduced
Externí odkaz:
https://doaj.org/article/3cf4b5945a074d48a7926a50cde1eebb
Autor:
Asif Ur Rehman, Muhammad Arif Mahmood, Fatih Pitir, Metin Uymaz Salamci, Andrei C. Popescu, Ion N. Mihailescu
Publikováno v:
Nanomaterials, Vol 11, Iss 12, p 3284 (2021)
In the laser powder bed fusion (LPBF) process, the operating conditions are essential in determining laser-induced keyhole regimes based on the thermal distribution. These regimes, classified into shallow and deep keyholes, control the probability an
Externí odkaz:
https://doaj.org/article/344be33337db4a70bb3a8bfbcaadd55e
Autor:
Anita Ioana Visan, Carmen Ristoscu, Gianina Popescu-Pelin, Mihai Sopronyi, Consuela Elena Matei, Gabriel Socol, Mariana Carmen Chifiriuc, Coralia Bleotu, David Grossin, Fabien Brouillet, Sylvain Le Grill, Ghislaine Bertrand, Irina Zgura, Rodica Cristescu, Ion N. Mihailescu
Publikováno v:
Pharmaceutics, Vol 13, Iss 10, p 1659 (2021)
One major warning emerging during the first worldwide combat against healthcare-associated infections concerns the key role of the surface in the storage and transfer of the virus. Our study is based on the laser coating of surfaces with an inorganic
Externí odkaz:
https://doaj.org/article/16b4595d02b34d6191681087a6777df6