Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Nicoleta-Monica Lohan"'
Autor:
Adrian Petru Teodoriu, Bogdan Pricop, Nicoleta-Monica Lohan, Mihai Popa, Radu Ioachim Comăneci, Ioan Doroftei, Leandru-Gheorghe Bujoreanu
Publikováno v:
Actuators, Vol 13, Iss 8, p 319 (2024)
In the present study, the capacity of two commercial NiTi and NiTiCu shape memory alloy (SMA) wires to develop work-generating (WG) and constrained-recovery (CR) shape memory effects (SMEs), as well as the capacity of a commercial NiTiFe super-elasti
Externí odkaz:
https://doaj.org/article/5a025a748c7a403790e46f7062f06860
Autor:
Ștefan-Dumitru Sava, Bogdan Pricop, Radu-Ioachim Comăneci, Nicanor Cimpoeșu, Mihai Popa, Nicoleta-Monica Lohan, Leandru-Gheorghe Bujoreanu
Publikováno v:
Polymers, Vol 16, Iss 14, p 1965 (2024)
One of the useful features of 3D-printed specimens of recycled polyethylene terephthalate glycol (R-PETG) is the ability to repetitively develop free recovery as well as the work-generating, shape-memory effect. This behavior is enabled by the R-PETG
Externí odkaz:
https://doaj.org/article/016f119602df43bf85be7f56f4d215df
Autor:
Ana-Maria Roman, Ramona Cimpoeșu, Bogdan Pricop, Nicoleta-Monica Lohan, Marius Mihai Cazacu, Leandru-Gheorghe Bujoreanu, Cătălin Panaghie, Georgeta Zegan, Nicanor Cimpoeșu, Alice Mirela Murariu
Publikováno v:
Journal of Functional Biomaterials, Vol 14, Iss 7, p 377 (2023)
Iron-based SMAs can be used in the medical field for both their shape memory effect (SME) and biodegradability after a specific period, solving complicated chirurgical problems that are partially now addressed with shape-memory polymers or biodegrada
Externí odkaz:
https://doaj.org/article/436b861720ea4d769809da0d36c06c04
Autor:
Ștefan-Dumitru Sava, Nicoleta-Monica Lohan, Bogdan Pricop, Mihai Popa, Nicanor Cimpoeșu, Radu-Ioachim Comăneci, Leandru-Gheorghe Bujoreanu
Publikováno v:
Polymers, Vol 15, Iss 10, p 2378 (2023)
From commercial pellets of recycled polyethylene terephthalate glycol (R-PETG), 1.75 mm diameter filaments for 3D printing were produced. By varying the filament’s deposition direction between 10° and 40° to the transversal axis, parallelepiped s
Externí odkaz:
https://doaj.org/article/3628bccc477f47a3b5fddc4c3a52a68e
Autor:
Cătălin Panaghie, Georgeta Zegan, Alina Sodor, Nicanor Cimpoeșu, Nicoleta-Monica Lohan, Bogdan Istrate, Ana-Maria Roman, Nicoleta Ioanid
Publikováno v:
Materials, Vol 16, Iss 8, p 3092 (2023)
Biodegradable metallic materials are increasingly gaining ground in medical applications. Zn-based alloys show a degradation rate between those recorded for Mg-based materials with the fastest degradation rate and Fe-based materials with the slowest
Externí odkaz:
https://doaj.org/article/e46694c91ace43c0814901dde7bb30dd
Autor:
Mihai Popa, Florin Popa, Bogdan Pricop, Nicanor Cimpoeșu, Nicoleta-Monica Lohan, Gabriel Kicsi, Bogdan Istrate, Leandru-Gheorghe Bujoreanu
Publikováno v:
Nanomaterials, Vol 13, Iss 7, p 1250 (2023)
Fe-Mn-Si-based shape memory alloys (SMAs) have been extensively investigated since 1982 for various useful properties that enhance the development of different applications such as anti-seismic dampers for very tall buildings, pipe joints, or rail fa
Externí odkaz:
https://doaj.org/article/7eea6ab5a9e84a3ca10735d5d834fe06
Autor:
Mihai Popa, Nicoleta-Monica Lohan, Bogdan Pricop, Nicanor Cimpoeșu, Marieta Porcescu, Radu Ioachim Comăneci, Maria Cazacu, Firuța Borza, Leandru-Gheorghe Bujoreanu
Publikováno v:
Nanomaterials, Vol 12, Iss 12, p 2088 (2022)
Active elements made of Ti50Ni45Cu5 shape memory alloy (SMA) were martensitic at room temperature (RT) after hot rolling with instant water quenching. These pristine specimens were subjected to two thermomechanical training procedures consisting of (
Externí odkaz:
https://doaj.org/article/9036812cc30f493ca1058adbf231e919
Publikováno v:
Polymers, Vol 14, Iss 11, p 2248 (2022)
Polyethylene terephthalate (PET) is used worldwide for packing, and for this reason, it is the main material in plastic waste. The paper uses granules of recycled PET (R-PET) as raw material for producing filaments for 3D printing, subsequently used
Externí odkaz:
https://doaj.org/article/bd22493cd4c7405eb444806ca92f12d8
Autor:
Dumitru Nedelcu, Simona-Nicoleta Mazurchevici, Ramona-Iuliana Popa, Nicoleta-Monica Lohan, Demófilo Maldonado-Cortés, Constantin Carausu
Publikováno v:
Materials, Vol 13, Iss 16, p 3615 (2020)
It is essential to combine current state-of-the-art technologies such as additive manufacturing with current ecological needs. Due to the increasing demand for non-toxic biodegradable materials and products, human society has been searching for new m
Externí odkaz:
https://doaj.org/article/0e0960bd138f495cb09c5ee9923628e2
Autor:
Mihai Popa, Victor Daniel Apostol, Nicoleta Monica Lohan, Nicanor Cimpoesu, Maria Cazacu, Firuta Borza, Leandru-Gheorghe Bujoreanu
Publikováno v:
Materials Today: Proceedings. 72:600-606
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::472d535a090c153347154689675f2874
https://doi.org/10.1016/j.matpr.2022.10.225
https://doi.org/10.1016/j.matpr.2022.10.225