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Topography, mechanical and tribological properties of nanocomposite carbon-palladium films

100%
Rymarczyk J., Kolodziejczyk L., Czerwosz E.
Open Physics
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2015
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vol. 13
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issue 1
EN
In this work, the differences in nanomechanical properties, topography and morphology of carbonpalladium (C-Pd) films were studied. These films were prepared with a Physical Vapour Deposition method on various substrates with different technological parameters. We show that duration of the PVD process is a crucial factor affecting the palladium content in these films. The differences in thickness of films depend on the distance between source boats and substrates. The nanomechanical properties of C-Pd films were studied with nanoindentation. Their topography and morphology was ascertained with Atomic Force Microscopy and Scanning Electron Microscopy. It was found that the mechanical properties of C-Pd films depend on the content of palladium and on the morphology and topography of these films. The various types of carbon-palladium films containing palladium nanograins incorporated in a carbon matrix that were, investigated in this paper, seem to be promising materials for numerous applications.
2
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Chronic and acute pancreatitis elastography – current knowledge

86%
Sepioł A. M., Cebula M. M.
Annales Academiae Medicae Silesiensis
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2023
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issue 77
82-86
EN
This paper is a review of available studies concerning the topic of ultrasound elastography as a modality for diagnosing chronic or acute pancreatitis. Twenty-eight articles published between 2004 and 2022 containing keywords related to elastography and acute and chronic pancreatitis were reviewed using databases and search engines such as PubMed, Scopus, Google Scholar and Web of Science. Acute and chronic pancreatitis increase the stiffness of the pancreatic parenchyma, which can be measured using strain or shear wave elastography. Numerous studies have shown promising results, and it seems that it is possible to use elastography as a routine technique in the diagnosis of chronic or acute pancreatitis. Nevertheless, certain limitations such as age or body weight, should be considered when performing elastography.
PL
Niniejsza praca stanowi przegląd dostępnych badań dotyczących elastografii ultrasonograficznej jako metody diagnostyki przewlekłego lub ostrego zapalenia trzustki. Dokonano przeglądu dwudziestu ośmiu artykułów opublikowanych w latach 2004–2022, zawierających słowa kluczowe związane z elastografią oraz ostrym i przewlekłym zapaleniem trzustki, z wykorzystaniem baz i wyszukiwarek takich jak PubMed, Scopus, Google Scholar i Web of Science. Ostre i przewlekłe zapalenie trzustki powoduje zwiększenie sztywności miąższu trzustki, co można zmierzyć za pomocą elastografii odkształceniowej lub fali poprzecznej. Liczne badania przyniosły obiecujące wyniki i wydaje się, że możliwe jest zastosowanie elastografii jako rutynowej techniki w diagnostyce przewlekłego lub ostrego zapalenia trzustki. Niemniej jednak podczas wykonywania elastografii należy wziąć pod uwagę pewne ograniczenia, takie jak wiek czy masa ciała.
3
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Effect of Structure on Physicomechanical Properties of Transition Metals Diboride Films

86%
Goncharov A., Yunda A., Komsta H., Rogalski P.
Acta Physica Polonica A
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2017
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vol. 132
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issue 2
270-273
EN
Research of the effect of structure on composition and physicomechanical properties of transition metals diboride films deposited by RF-magnetron sputtering was carried out. It was shown that there is a wide range of different structures, from amorphous to nanocrystalline one with 1-40 nm nanocrystallite sizes in the case of transition metals diboride films. The correlation between the structure, composition, and physicomechanical properties of transition metals diboride films was established.
4
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Dynamic mechanical characterization of epoxy composite reinforced with areca nut husk fiber

81%
Muralidhar N., Vadivuchezhian K., Arumugam V., Srinivasula R. I., Muralidhar N., Vadivuchezhian K., Arumugam V., Srinivasula R. I.
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vol. 67
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issue 1
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