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Wyświetlanie 1-10 z 205
Tytuł:
Application of the laser scanning microscopy to evaluation of abrasive tool wear
Autorzy:
Lipiński, D.
Kacalak, W.
Tomkowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/99948.pdf
Data publikacji:
2012
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
grinding
wear
abrasive tools
surface analysis
monitoring
Opis:
Grinding is one of the basic precise machining methods. Evaluation of the abrasive tool surface is the basic criterion of forecasting the tools' durability and the process results. The applied method of laser scanning made determination of the surface coordinates and subsequently of its geometric features with micrometric accuracy possible. Using the information on the abrasive tool surface geometric structure, a methodology of evaluation of the level of changes of the tool during the machining process was developed. The developed method allowed for evaluation of the level of abrasive tools' wear, and subsequently formed foundations for assessment of the influence of the machining parameters on the durability of abrasive tools, evaluation of the influence of the parameters of the process of shaping the abrasive tools' active surfaces on their geometric characteristic and evaluation of the level of correlation between the monitored process parameters and the degree of the abrasive tools' wear.
Źródło:
Journal of Machine Engineering; 2012, 12, 4; 99-110
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Novel luminescent dyes for confocal laser scanning microscopy used in Trematoda parasite diagnostics
Autorzy:
Kirilova, Elena
Kecko, Sanita
Mežaraupe, Ligita
Gavarāne, Inese
Pučkins, Aleksandrs
Mickeviča, Ilona
Rubeniņa, Ilze
Osipovs, Sergejs
Bulanovs, Andrejs
Pupiņš, Mihails
Kirjušina, Muza
Powiązania:
https://bibliotekanauki.pl/articles/1038378.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
benzanthrone dyes
trematode
confocal laser scanning microscopy
Opis:
Benzanthrone derivates are now widely used in many industrial and scientific applications as dyes for polymers and textiles. In biochemical, biomedical and diagnostics investigations benzanthrone dyes are used as a lipophilic fluorescent probe since many benzanthrone derivates demonstrate bright fluorescence and they have ability to intercalate between membrane lipids. The aim of research presented here was to assess the luminescence ability of benzanthrone derivatives using microscopic visualization of biological objects. Accordingly, specimens of freshwater trematodes: Diplostomum spathaceum, Diplodiscus subclavatus and Prosotocus confusus, were stained by novel benzanthrone dyes using different fixatives. The samples were examined under a confocal laser scanning microscope. All of the dyes tested demonstrated good results for digestive and reproductive system visualization. Based on obtained results we conclude that benzanthrone dyes could be used for internal and external structure confocal laser scanning microscopic imaging of trematode specimens.
Źródło:
Acta Biochimica Polonica; 2018, 65, 3; 449-454
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological Variations of Chondrocytes in Bovine Articular Cartilage Using Confocal Laser Scanning Microscopy
Autorzy:
Çıçek, E.
Arikanoğlu, A.
Powiązania:
https://bibliotekanauki.pl/articles/1197654.pdf
Data publikacji:
2014-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.85.G-
Opis:
Articular cartilage is a highly organized avascular tissue, a matrix consisting of a three-dimensional meshwork of type II collagen fibrils and proteoglycans. To understand the effects of the alteration in chondrocyte shape in response to physiological load in local mechanical properties and, thus, to contribute to experimental load studies, we studied variation of the natural load induced deformations in chondrocytes among five different regions from bovine articular cartilage samples using confocal laser scanning microscopy imaging methods. The morphological differences of the chondrocyte shape, orientation and circularity in articular cartilage were measured. The chondrocytes were observed to be smoother in more loaded regions to the center of the cartilage.
Źródło:
Acta Physica Polonica A; 2014, 125, 4; 898-901
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Auditory ossicles in Scanning Electron Microscopy
Autorzy:
Wiatr, Agnieszka
Składzień, Jacek
Wiatr, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/1397399.pdf
Data publikacji:
2020-05-12
Wydawca:
Index Copernicus International
Tematy:
middle ear surgery
ossicular chain
Scanning Electron Microscope
Opis:
Introduction: Knowledge about the physiology of a healthy middle ear is essential for understanding the activity and mechanics of the ear as well as the basics of ossiculoplasty. Trauma of the epithelial lining of the tympanic cavity as well as the ossicular chain may be the result of chronic inflammation and surgery. Depending on the observed changes of the middle ear lining, there are several types of distinguished chronic inflammatory changes: simple, with cholesteatoma, with the formation of inflammatory granulation tissue, in course of specific diseases. Purpose: The aim of the article is presentation of the microstructure and vasculature of the ossicular chain in the Scanning Electron Microscope. Particular attention is drawn to the anatomical aspects of the structure and connections of auditory ossicles as vital elements for reconstruction of the conduction system of the middle ear. Material and method: The analysis covered auditory ossicles standardly removed in accordance with the methodology of the investigated surgical procedures. The preparations were evaluated in a scanning electron microscope. Results: The exposure of bone surface promotes deep erosion. The advanced process of destruction of bone surface in the case of chronic otitis media correlates with a significant degree of damage to both the lining covering the auditory ossicles and that surrounding articular surfaces. Conclusions: (1) The ossicles in the image of the Scanning Electron Microscope are covered with lining. It passes from the surface of the ossicles to the vascular bundles, forming vascular sheaths; (2) Damage to lining continuity on the surface of the auditory ossicles promotes the rapid destruction of bone tissue in the inflammatory process; (3) The dimensions of the individual ossicles are respectively: malleus – 8.36 +/- 0.01, incus – 8.14 +/- 0.0, stapes – 3.23 +/- 0.01 mm. Behavior of the anatomical length of ossicular chain during tympanoplasty appears to be essential to maintaining adequate vibration amplitude of the conductive system of the middle ear.
Źródło:
Polish Journal of Otolaryngology; 2020, 74, 4; 1-7
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent Developments in Scanning Tunneling Microscopy
Autorzy:
Wiesendanger, R.
Powiązania:
https://bibliotekanauki.pl/articles/1929607.pdf
Data publikacji:
1993-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.16.Bg
68.35.Bs
75.25.+z
Opis:
Scanning tunneling microscopy and related local probe methods have led to a novel perception of nanometer- and atomic-scale structures and processes. Since the structural information is obtained directly in real space, the scanning probe techniques offer considerable advantages compared with diffraction techniques for the investigation of non-periodic structures at solid surfaces. In addition, the local probe methods allow to study almost any kind of physical property of microstructures with submicron down to atomic resolution.
Źródło:
Acta Physica Polonica A; 1993, 84, 3; 419-421
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In-Situ Observation of Acicular Ferrite Transformation in High-Strength Low-Alloy Steel Using Confocal Laser Scanning Microscopy
Autorzy:
Lee, Sang-In
Shin, Seung-Hyeok
Park, Hyeonwoo
Kim, Hansoo
Lee, Joonho
Hwang, Byoungchul
Powiązania:
https://bibliotekanauki.pl/articles/2174577.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
acicular ferrite
high-strength low-alloy steel
confocal laser scanning microscopy
CLSM
phase transformation
in-situ observation
Opis:
In-situ observation of the transformation behavior of acicular ferrite in high-strength low-alloy steel using confocal laser scanning microscopy was discussed in terms of nucleation and growth. It is found that acicular ferrite nucleated at dislocations and slip bands in deformed austenite grains introduced by hot deformation in the non-recrystallization austenite region, and then proceeded to grow into an austenite grain boundary. According to an ex-situ EBSD analysis, acicular ferrite had an irregular shape morphology, finer grains with sub-grain boundaries, and higher strain values than those of polygonal ferrite. The fraction of acicular ferrite was affected by the deformation condition and increased with increasing the amount of hot deformation in the non-recrystallization austenite region.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 4; 1497--1501
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spin-Polarized Scanning Tunnelling Microscopy of Ultrathin Films
Autorzy:
Kukunin, A.
Prokop, J.
Elmers, H. J.
Powiązania:
https://bibliotekanauki.pl/articles/2044708.pdf
Data publikacji:
2006-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.75.+a
68.37.Ef
81.15.-z
Opis:
Using low temperature spin-polarized scanning tunneling microscopy we have studied the morphology and magnetic properties of ultrathin Fe(0.5 ML)Au(0.5 ML) nanowires prepared on a Mo(110) single crystal. The Fe nanostripes grown by step flow on a Mo(110) at 700 K were covered by Au at RT, and subsequently annealed at 700 K. Differences in the morphology of Au on Fe(110)/Mo(110) and clean Mo(110) surfaces are observed and discussed. After annealing, the Mo is covered by a homogeneous FeAu ML alloy with several iron enriched islands which reveal an out-of-plane magnetic contrast. Direct lateral exchange coupling has been observed for these islands.
Źródło:
Acta Physica Polonica A; 2006, 109, 3; 371-375
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scanning-Gate Microscopy of Semiconductor Nanostructures: An Overview
Autorzy:
Martins, F.
Hackens, B.
Sellier, H.
Liu, P.
Pala, M. G.
Baltazar, S.
Desplanque, L.
Wallart, X.
Bayot, V.
Huant, S.
Powiązania:
https://bibliotekanauki.pl/articles/2047914.pdf
Data publikacji:
2011-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.21.La
73.23.Ad
03.65.Yz
85.35.Ds
Opis:
This paper presents an overview of scanning-gate microscopy applied to the imaging of electron transport through buried semiconductor nanostructures. After a brief description of the technique and of its possible artifacts, we give a summary of some of its most instructive achievements found in the literature and we present an updated review of our own research. It focuses on the imaging of GaInAs-based quantum rings both in the low magnetic field Aharonov-Bohm regime and in the high-field quantum Hall regime. In all of the given examples, we emphasize how a local-probe approach is able to shed new, or complementary, light on transport phenomena which are usually studied by means of macroscopic conductance measurements.
Źródło:
Acta Physica Polonica A; 2011, 119, 5; 569-575
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using scanning electron microscopy to study slug morphology
Autorzy:
Kaluski, T.
Gawlak, M.
Cieluch, P.
Kozlowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/84768.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
scanning electron microscopy
slug
Arion lusitanicus
Arion rufus
pest
cultivated plant
animal population
animal morphology
Źródło:
Folia Malacologica; 2012, 20, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 205

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