Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Valeri Petrov"'
Autor:
Kamen Boyadzhiev, Yavor Boyadzhiev, Victoria Haleva, Tzvetana Popova, Juan José García-Granero, Monika Jovanović, Nadezhda Karastoyanova, Victoria Russeva, Orlene McIlfatrick, Beatrijs de Groot, Nikolay Sirakov, Ekaterina Mitrinova, Petko Panchov, Valeri Petrov
Publikováno v:
Studia Praehistorica, Vol 17 (2023)
This paper considers the structure investigated at the largest area (labeled as BII-21B) in the Chalcolithic level BII of Tell Yunatsite, located in the western parts of the Upper Thracian Plain. It collapsed during a sudden fire, which did not affec
Externí odkaz:
https://doaj.org/article/3ee63f07bd354a66bbbe75646df7b38c
Autor:
Angelina Stoyanova-Ivanova, Valeri Petrov, Jorge N. R. Martins, Laura Andreeva, Velizar Georgiev
Publikováno v:
Materials, Vol 17, Iss 11, p 2603 (2024)
The manufacturing of orthodontic archwires made from NiTi alloy has undergone numerous changes from the second half of the last century to modern times. Initially, superelastic-active austenitic NiTi alloys were predominant, followed by thermodynamic
Externí odkaz:
https://doaj.org/article/e8c5fbe1948343bc8a05d4bbdda0b501
Autor:
Angelina Stoyanova-Ivanova, Mirela Georgieva, Valeri Petrov, Jorge N. R. Martins, Laura Andreeva, Alexander Petkov, Nadia Petrova, Velizar Georgiev
Publikováno v:
Materials, Vol 16, Iss 10, p 3776 (2023)
Multiforce nickel–titanium (NiTi) orthodontic archwires release progressively increasing forces in a front-to-back direction along their length. The properties of NiTi orthodontic archwires depend on the correlation and characteristics of their mic
Externí odkaz:
https://doaj.org/article/6536e925e546429ab689ae7dd4f5b857
Autor:
Mirela Georgieva, Angelina Stoyanova-Ivanova, Sabina Cherneva, Valeri Petrov, Violeta Petrova, Laura Andreeva, Valentin Mihailov, Alexander Petkov, Valdek Mikli
Publikováno v:
Biotechnology & Biotechnological Equipment, Vol 35, Iss 1, Pp 1301-1311 (2021)
This study aimed to characterize and compare the latest generation multi-force Bio-active™ orthodontic archwires to determine if there is a change in their physicochemical and mechanical properties during orthodontic treatment. The physicochemical
Externí odkaz:
https://doaj.org/article/4c4c02ed77114fe38b9a4c7d6ae42838
Autor:
Angelina Stoyanova-Ivanova, Mirela Georgieva, Valeri Petrov, Laura Andreeva, Alexander Petkov, Velizar Georgiev
Publikováno v:
Materials, Vol 16, Iss 2, p 483 (2023)
Multiforce orthodontic archwires are thermodynamic wires made of nickel-titanium alloy (Ni-Ti). They release biologically tolerable forces along their length, progressively increasing from front to back. The frontal archwires’ segments distribute t
Externí odkaz:
https://doaj.org/article/0c6cc5f04682465c8c05459b62d113ef
Autor:
Eldarov, Svetlozar
Publikováno v:
Études balkaniques / Balkan Studies. (4):659-675
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=463973
Publikováno v:
2022 International Conference on Information Technologies (InfoTech).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60cc390091e3fcdd83d4e391560c5d23
https://doi.org/10.1109/infotech55606.2022.9897111
https://doi.org/10.1109/infotech55606.2022.9897111
Publikováno v:
2022 International Conference on Information Technologies (InfoTech).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49b7958e6f3cfbee571b4d4a91558175
https://doi.org/10.1109/infotech55606.2022.9897073
https://doi.org/10.1109/infotech55606.2022.9897073
Autor:
I. Ilievska, V. Petrova, A. J. Zaleski, Laura Andreeva, A. Stoyanova-Ivanova, Valdek Mikli, Valeri Petrov
Publikováno v:
Acta Medica Bulgarica, Vol 48, Iss 1, Pp 68-74 (2021)
In modern orthodontics, thermally activated archwires are used more widely in clinical practice, because they have unique properties like superelasticity and bio-compatibility. The aim of the present study was to characterize commercial 35° C Cu-NiT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b494fa80d49d32e0ded052e869b2d95b
https://doaj.org/article/72aab89f5e8948ea8b179d154f6bcf84
https://doaj.org/article/72aab89f5e8948ea8b179d154f6bcf84
Publikováno v:
EmergingMarketsNOW. 9/10/2008, p3-3. 1p.