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Wyszukujesz frazę "Chałas, K" wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Research on tribological properties of dental composite materials
Autorzy:
Dziedzic, K.
Zubrzycka-Wróbel, J.
Józwik, J.
Barszcz, M.
Siwak, P.
Chałas, R.
Powiązania:
https://bibliotekanauki.pl/articles/103005.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
dental materials
biotribology
friction coefficient
wear
Opis:
Dental practice today used a lot of different materials. This paper evaluates tribological and mechanical properties of two dental materials CeramX and I-Light. Tribological analysisad of samples was conducted at temperature 37°C and in the environment of artificial saliva. The wear rate was evaluated with a ball-on-disc tribotester, in accordance to ASTM G-133 norm. The counterbodies were 6-mm-in-diameter Al2 O3 steel balls. The load of 2, 10 and 20 N was applied. The tests were conducted at 0.15 m/s sliding velocity over a sliding stroke of 1000 m. The changes in the value of the following parameters were measured during the trials: friction coefficient, friction force, temperature and wear depth. After completing the tribological tests the surface of samples was carried out.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 32; 144-149
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-term clinical performance of experimental glass-ionomer cement with the bi-functional fluid
Autorzy:
Chalas, R.
Wojcik-Checinska, I.
Strycharz-Dudziak, M.
Kaminska-Pikiewicz, K.
Bachanek, T.
Powiązania:
https://bibliotekanauki.pl/articles/3528.pdf
Data publikacji:
2015
Wydawca:
Instytut Medycyny Wsi
Tematy:
long-term clinical performance
experimental ionomer
glass-ionomer
cement
dentistry
bi-functional fluid
Opis:
Introduction. Glass-ionomers have the ability to chemically bond to enamel and dentin, and are characterized by longterm fluoride release and absorption of fluoride from surrounding sources. Objective. The aim of the presented long-term clinical trial was to evaluate and compare the three-year clinical performance of the experimental glass-ionomer cement ‘SJZ/W’ with the bi-functional fluid placed in carious and non-carious cavities. Material and methods. Seventy restorations were made in adult patients of both genders. Clinical evaluation was performed at baseline and yearly intervals after placement using Ryge’s scale, considering the surface structure, anatomical form of the restoration and marginal integrity. Results. Immediately after placement, 70 restorations were assessed, 65 of which were subject to clinical evaluation after a year, 63 subject to clinical evaluation after 2 years, and 3-year evaluation was made for 55 restorations. The material showed minor changes in evaluated parameters and no differences were detected between their performance at baseline, and after three years only in anatomical shape. No post-operative sensitivity was recorded. Conclusion. The examined glass-ionomer ‘SJZ/W’ provided an acceptable clinical performance over a three-year period.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2015, 09, 2
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical culture and human axjosphere
Autorzy:
Chałas, K
Powiązania:
https://bibliotekanauki.pl/articles/957969.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
technical culture
values
axjosphere
Opis:
Technical culture is the value of each historical period. It is the subject of the ongo-ing development. While it is a value which is associated with different categories of values, mainly material, cognitive, social. Between culture and these three categories of values there is a cognitive effect. Technical culture determines the quality of hu-man axjosphere. The aim of this study is to show the relationships and dependencies between technical culture and the structures in which a person lives and works. It is mainly about the answer to the question of which values of technical culture are closely related to and what are the inter dependencies? The primary task is to define the concept of the technical culture and to show its teach-ing essence. The second task boils down to indicate the range of values inherent in the culture of technology, determining the value of the technological culture and values, which are developed by the technical culture. Indication of the interaction between the technical culture and values is the third task.
Źródło:
Advances in Science and Technology. Research Journal; 2014, 8, 24; 107-110
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The content of selected elements in drinking water, prevalence of caries and hygienic habits of 15-year-olds living in Lviv (Ukraine) and Lublin (Poland)
Autorzy:
Bachanek, T.
Chalas, R.
Zimenkovsky, A.
Hendzel, B.
Wolanska, E.
Samborski, D.
Pitura, K.
Jarosz, Z.
Szybinsky, V.
Durlak, W.
Dudkiewicz, M.
Dzida, K.
Tymczyna, B.
Powiązania:
https://bibliotekanauki.pl/articles/14102.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:
Journal of Elementology; 2018, 23, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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