Wszystkie pola: Jonas, C. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analytical Cartesian coordinate solutions of Laplace equations by separation of variable method in mathematical physics
Autorzy:: Madububa, B. I.
Mbagwu, JP. C.
Jonas, C. I.
Odionyenma, U. B.
Powiązania:: https://bibliotekanauki.pl/articles/1193372.pdf
Data publikacji:: 2021
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Cartesian coordinates
Dimensions of space
Laplace equations
Partial derivatives
Potential
Separation of variables
Opis:: This research aimed at solving the Cartesian coordinates of two and three dimensional Laplace equations by separation of variables method. It was painstakingly solved with appropriate boundary conditions of steady states. However, the solution of potential (V) of a partial differential equation (PDE) in three real variables x,y and z are functionally obtained using separation of variable approach by stating the boundary conditions of the Cartesian coordinates.
Źródło:: World Scientific News; 2021, 155; 80-97
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Strategies for Helicobacter pylori eradication in 1995: A review of international and Belgian experience
Autorzy:: Deltenre, M
Jonas, C.
Otero, J.
Cozzoli, A.
Denis, P.
Burette, A.
De Koster, E.
Powiązania:: https://bibliotekanauki.pl/articles/69033.pdf
Data publikacji:: 1996
Wydawca:: Polskie Towarzystwo Fizjologiczne
Tematy:: macrolide
bacterial resistance
in vivo
in vitro
Helicobacter pylori
omeprazole
peptic ulcer
gastric milieu
acid secretion
treatment
antibiotic
microorganism
gastroduodenal disorder
stomach
amoxicillin
eradication
Źródło:: Journal of Physiology and Pharmacology; 1996, 47, 1
0867-5910
Pojawia się w:: Journal of Physiology and Pharmacology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Abrasive Wear Mechanisms of S235JR, S355J2, C45, AISI 304, and Hardox 500 Steels Tested Using Garnet, Corundum and Carborundum Abrasives
Autorzy:: Szala, Mirosław
Szafran, Michał
Matijošius, Jonas
Drozd, Kazimierz
Powiązania:: https://bibliotekanauki.pl/articles/2201922.pdf
Data publikacji:: 2023
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: abrasion
wear resistance
dry sand-rubber wheel test
tribology
steel
wear mechanism
roughness analysis
failure analysis
Opis:: Wear resistance is one of the main indicators of the reliability of machine parts. The selection of wear-resistant material should consider the operational environment and specific types of abrasive material. The steel abrasive wear resistance depends not only on its hardness and microstructure but also on the abrasive material's properties, such as hardness and particle morphology. This work aimed to determine abrasion wear mechanisms of a set of steels, i.e., S235, S355, C45, AISI 304 and Hardox 500, abraded by different types of grit i.e. garnet, corundum and carborundum. The abrasion tests were conducted using T-07 tribometer (rubber wheel method). Wear traces were examined with a scanning electron microscope (SEM), and a contact profilometer. SEM analysis revealed that apart from Hardox 500, ploughing and microfatigue were the dominant wear mechanisms. Microcutting was the main wear mechanism for Hardox 500 tested with carborundum (SiC). The highest mass loss was usually obtained for carborundum. The lowest wear resistance in garnet and carborundum was obtained for the S235JR and S235J2 steels and Hardox 500 tested with corundum. The effect of steel microstructure on the wear mechanism has been confirmed. AISI 304 austenitic steel abraded by carborundum grit, presented outstanding roughness parameters: Ra, Rz, RSm, Rk, Rvk and Rpk than other steels tested with carborundum. Steel hardness affects the morphology of the wear trace reducing the Ra and Rz roughness parameters. The effect of abrasive hardness and grain morphology on abraded surfaces has been stated. Contrary to fine grains of the hardest carborundum, coarse garnet grains caused high roughness parameters (Rk, Rpk and Rvk) determined in wear trace.
Źródło:: Advances in Science and Technology. Research Journal; 2023, 17, 2; 147--160
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Jonas, C." wg kryterium: Wszystkie pola

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język