Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ana-Maria Roman"'
Autor:
Nicanor Cimpoesu, Viorel Paleu, Catalin Panaghie, Ana-Maria Roman, Alin Marian Cazac, Lucian-Ionel Cioca, Costica Bejinariu, Stefan Constantin Lupescu, Mihai Axinte, Mihai Popa, Georgeta Zegan
Publikováno v:
Metals, Vol 14, Iss 7, p 836 (2024)
Biodegradable metallic materials are gaining attention for medical applications in short-term implants (15–500 days) because of their good mechanical properties, biocompatibility, and generalized corrosion. Most medical applications involve implant
Externí odkaz:
https://doaj.org/article/e0aa228fb5b247aba004197d75799283
Autor:
Alexandra-Tamara Șutic, Romeu Chelariu, Ramona Cimpoeșu, Ana-Maria Roman, Bogdan Istrate, Viorel Goanță, Marcelin Benchea, Mihaela Moscu, Adrian Alexandru, Nicanor Cimpoeşu, Georgeta Zegan
Publikováno v:
Metals, Vol 14, Iss 7, p 764 (2024)
The influence of the chemical composition and structural state of Zn–Ti alloys on corrosion behaviour and mechanical properties was studied. Zn-based alloys were investigated, more precisely, pure technical Zn and Zn with 0.10, 0.25 and 1.00 wt.% T
Externí odkaz:
https://doaj.org/article/2e5d620165bd48ec81360b55dfa0e37c
Autor:
Gheorghe Bădărău, Mihai Popa, George Stoian, Ana-Maria Roman, Radu-Ioachim Comăneci, Bogdan Pricop, Nicanor Cimpoeșu, Leandru-Gheorghe Bujoreanu
Publikováno v:
Crystals, Vol 14, Iss 3, p 250 (2024)
The paper analyzes the occurrence of evenly spaced cracks on the surface of lamellar specimens of Fe-28Mn-6Si-5Cr (mass %) shape-memory alloy (SMA), during cold rolling. The specimens were hot rolled and normalized and developed cold rolling cracks w
Externí odkaz:
https://doaj.org/article/9056734eb7b54dd9aa64ccedd9186afc
Autor:
Ana-Maria Roman, Ramona Cimpoeșu, Bogdan Pricop, Marius Mihai Cazacu, Georgeta Zegan, Bogdan Istrate, Alexandru Cocean, Romeu Chelariu, Mihaela Moscu, Gheorghe Bădărău, Nicanor Cimpoeșu, Mircea Cătălin Ivănescu
Publikováno v:
Nanomaterials, Vol 14, Iss 4, p 330 (2024)
A new functional Fe-30Mn-5Si-xCu (x = 1.5 and 2 wt%) biomaterial was obtained from the levitation induction melting process and evaluated as a biodegradable material. The degradation characteristics were assessed in vitro using immersion tests in sim
Externí odkaz:
https://doaj.org/article/7212dbf74f214af1a306ace25c87f4aa
Autor:
Ana Spînu, Ana-Maria Roman
Publikováno v:
Ovidius University Annals: Economic Sciences Series, Vol XXII, Iss 1, Pp 143-148 (2022)
Given the financial crisis that has now affected most of Europe's regions, especially due to the COVID-19 pandemic, there has been a significant increase in unemployment in many EU Member States in recent years. Governments have an obligation to cont
Externí odkaz:
https://doaj.org/article/c7c69dee1ba14e648c24bb4620274356
Autor:
Ana-Maria Roman
Publikováno v:
Annals of the University of Craiova: Economic Sciences Series, Vol 1, Iss 50, Pp 62-67 (2022)
The objective of this Article is the totality of the public measures taken by the state in order to protect its citizens against the negative consequences caused by the significant drop in work due to unemployment. In the field of unemployment, Roman
Externí odkaz:
https://doaj.org/article/8a3ef72beaa84f618f90ec329045482c
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
Publikováno v:
Economica, Vol 4, Iss 118, Pp 146-155 (2021)
This article makes reference to the effectiveness of the national social protection system, which depends on the efficiency of systems for redistributing income within a state, i.e. the efficiency of tax and social systems. The accession to the
Externí odkaz:
https://doaj.org/article/e2b68f16631a4cb48ff03f1bdf4790ef
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:
Ana-Maria Roman
Publikováno v:
Ovidius University Annals: Economic Sciences Series, Vol XXI, Iss 2, Pp 178-184 (2021)
The vast majority of Europeans regard social protection as a significant materialization of modern society, looking at it as a main instrument of continuity of social interdependence. In Romania, social policy is a concise policy, coordinated by the
Externí odkaz:
https://doaj.org/article/e36b2cc707ee4ec08e41c2c984403884