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  1. 8 Laboratorium - Przegląd Ogólnopolski
  2. 4 Przegląd Papierniczy
  3. 3 LAB Laboratoria, Aparatura, Badania
  4. 2 Acta Agrobotanica
  5. 2 Acta Parasitologica
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  1. 3 Grabowska B.
  2. 3 Kozielec T.
  3. 2 Brzozowska T.
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1
Content available remote Effect of annealing on the structural properties of arsenic-implanted mercury cadmium telluride
100%
Izhnin I. , Fitsych O. I. , Świątek Z. , Morgiel Y. , Bonchyk O. Y. , Savytskyy H. V. , Mynbaev K. , Voitsekhovskii A. V. , Korotaev A. G. , Yakushev M. V. , Marin D. V. , Varavin V. S. , Dvoretsky S. A.
Opto-Electronics Review
|
2019
|
tom Vol. 27, No. 1
14--17
EN
Effect of annealing on the structural properties of arsenic-implanted mercury cadmium telluride film grown by molecular beam epitaxy was studied with the use of transmission electron microscopy and optical reflection. Strong influence of the graded-gap surface layer grown on top of the film on the behaviour of implantation-induced defects under arsenic activation annealing was revealed and interpreted.
2
Content available remote Multiaxis interferometric displacement measurement for local probe microscopy
100%
Lazar J. , Hrabina J. , Šerý M. , Klapetek P. , Číp O.
Open Physics
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2012
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tom 10
|
nr 1
225-231
EN
We present an overview of design approaches for nanometrology measuring setups with a focus on interferometry techniques and associated problems. The design and development of a positioning system with interferometric multiaxis monitoring and control is presented. The system is intended to operate as a national nanometrology standard combining local probe microscopy techniques and sample position control with traceability to the primary standard of length.
3
Obserwacje mikroskopowe kompozycji epoksydowo-węglowych
100%
Kurzeja L. , Szeluga U. , Grishchuk S.
Karbo
|
2000
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tom Nr 4-5
123-128
PL
Celem badań jest określenie wpływu węgla, o średnim stopniu metamorfizmu i węgla brunatnego, jako organicznego napemiacza na reaktywność kompozycji polimerowych i ich właściwości. Przedstawiono jak wpływa sposób przygotowania kompozycji z węglem i jego ilość na morfologię i dynamikę molekularną łańcuchów polimerowych. Na podstawie zdjęć z mikroskopii optycznej stwierdzono, że węgiel brunatny rozpuszcza się częściowo w żywicy epoksydowej i proces ten zwiększa się ze wzrostem temperatury, natomiast węgiel o średnim stopniu metamorfizmu ulega spęcznieniu.
EN
The objective of investigations consists in determination of carbon influence of average degree of mctamorphism and brown coal as an organic filler on reactivity of polymer compositions and their properties. The article shows how the manner of preparation of compositions with carbon an its quantity influences the morphology and molecular dynamics of polymer chains. Upon the pictures from optical microscopy it was determined that brown coal partially dissolves in epoxy resin and the process increases with temperature raise while carbon of average degree of mctamorphism undergoes swelling.
4
Content available Review of the advanced microscopy techniques used for diagnostics of grinding wheels with ceramic bond
100%
Kapłonek W. , Nadolny K.
Journal of Machine Engineering
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2012
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tom Vol. 12, No. 4
81--98
EN
A wide range of abrasive tools is used in modern removal machining techniques. Their condition has significant influence on the quality of the shaped surfaces of the produced elements and the functions they perform. Abrasive tools diagnostics is in this case an essential element of the production process, connected with assessment of the abrasive tool surface condition. Such an assessment can be carried out with microscopic methods The work presents selected microscopic techniques on the cutting edge of technology such as: digital microscopy, confocal laser scanning microscopy and scanning electron microscopy. Characteristics of each of the methods and the applied devices were briefly presented. The experimental part presents exemplary results of measurements and analyses carried out using the described methods. The works were carried out on, among others, grinding wheels with ceramic bond used in internal cylindrical grinding processes. The assessed tools were characterized by a number of features such as impregnated active surface, modified bond microstructure or smearing the active surface with chips of the machined material. The obtained results confirmed the possibility of application of the above-mentioned microscopic techniques in abrasive tools diagnostics.
5
Content available The tandem scanning reflected light microscope
100%
Petran M. , Hadravsky M. , Boyde A.
|
1995
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tom 09
|
nr 4
6
Content available Examination of Clustering in Eutectic Microstrcture
88%
Bortnyik K. , Barkóczy P.
Archives of Metallurgy and Materials
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2017
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tom Vol. 62, iss. 2B
1155--1159
EN
The eutectic microstructures are complex microstructures and a hard work to describe it with few numbers. The eutectics builds up eutectic cells. In the cells the phases are clustered. With the development of big databases the data mining also develops, and produces a lot of method to handling the large datasets, and earns information from the sets. One typical method is the clustering, which finds the groups in the datasets. In this article a partitioning and a hierarchical clustering is applied to eutectic structures to find the clusters. In the case of AlMn alloy the K-means algorithm work well, and find the eutectic cells. In the case of ductile cast iron the hierarchical clustering works better. With the combination of the partitioning and hierarchical clustering with the image transformation, an effective method is developed for clustering the objects in the microstructures.
7
Content available remote Tailoring hydrophobicity properties of polyvinylidene fluoride infused graphene composite films
88%
Marlinda A. R. , Yusof Y. , Aznan N. A. K. , Berahim N. , Hamizi N. A. , Fen L. B. , Mokhtar R. A. R. , Johan M. R.
Materials Science Poland
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2022
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tom Vol. 40, No. 3
72--79
EN
In this work, a synthesis to improve surface wetting resistance composites via infusion of graphene (G) structure into the polyvinylidene fluoride (PVDF) matrices is introduced. Graphene is incorporated into the PVDF matrix with a percentage of 1.0 wt.% up to 2.5 wt.% using simple solvent blending and dry-casting methods. The morphological and structural properties of the graphene infused into PVDF are investigated using a variety of characterization techniques, including field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy (EDX), and Raman spectroscopy. The tensile properties of graphene infused into the PVDF matrix are investigated using the INSTRON Universal test. The need for hydrophobicity performance on polyvinylidene fluoride infused graphene (PVDF/G) composite is also reported. Based on our evaluation, we ascertain that the PVDF/G-1.5% produces extremely high values for ultimate tensile stress and Young’s modulus, amounting, respectively, to 90.24 MPa and 5720.88 MPa. The PVDF/G composite exhibits surface roughness and increases water contact angle (CA) by 20° more than pure PVDF. Therefore, it is possible to deploy PVDF/G composite thin films with suitable mechanical strength and hydrophobicity in biomedical material-based engineering applications.
8
Content available Biopolymeric scaffold for cell visualisation in 3D environment using coherence-controlled holographic microscopy
75%
Dorazilová J. , Štrbková L. , Ďuriš M. , Vojtová L.
Engineering of Biomaterials
|
2019
|
tom Vol. 22, no. 153 spec. iss.
43
9
Content available Mikroskopia cryo-SEM jako skuteczna metoda obiektywnej oceny struktury silikonowo-hydrożelowych soczewek kontaktowych
75%
Zaworska M.
Optyka
|
2018
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tom Nr 5
38--42
PL
Metoda cryo-SEM jest obiecującą metodą w materiałowych badaniach soczewek kontaktowych. Mimo aplikacyjnej atrakcyjności tej techniki pomiarowej, dotychczas przeprowadzono tylko nieliczne badania wykorzystujące tę metodę do badania soczewek kontaktowych. Ponadto wyniki zawarte w tych publikacjach wydają się bardzo powierzchowne. Do tej pory nie istnieje sprawdzona metodologia przygotowania soczewki kontaktowej do pomiaru cryo-SEM. Celem poniższej pracy było przetestowanie różnych parametrów przygotowania próbki i samego obrazowania, szczególnie w kontekście jakości otrzymywanych obrazów. Docelowo ma to prowadzić do opracowania procedury przygotowania soczewek kontaktowych do pomiarów cryo-SEM, co pozwoli na efektywne ich obrazowanie. Metoda cryo-SEM może być komplementarną metodą wykorzystaną w badaniach soczewek kontaktowych, mających na celu zrozumienie zmian zachodzących podczas ich użytkowania.
EN
Cryo-SEM is a propitious method in contact lens material research. Even though this measurement technique appears to be attractive, few studies using this method for testing contact lenses were conducted. Pre vious research using this method seem to be cursory. There is no proven methodology for preparing contact lens to cryo-SEM examination. The main purpose of this thesis was to test the influence of different parameters of sample preparation and visualisation on quality of obtained photographs. The eventual goal is to develop a methodology of preparing contact lenses for cryo-SEM examinations, thereby enabling their effective visualisation. Cryo-SEM can be a complementary method in contact lens research that aims to understand changes occurring in the lenses during usage.
10
Content available remote Characterization of powders used for LPPS Thin Film plasma spraying of thermal barrier coatings
75%
Góral M. , Drajewicz M. , Pytel M. , Kotowski S.
Journal of Achievements in Materials and Manufacturing Engineering
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2011
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tom Vol. 47, nr 2
157--165
EN
Purpose: The authors described in this article the basic properties of materials used for spray process of thermal barrier coatings under low pressure The characteristic of selected powders applied for bond-coats and outer ceramic layer was introduced. The authors presented the analysis of powders based on zirconium oxide stabilized by yttrium oxide, magnesium and calcium. Design/methodology/approach: The described powders was analyzed by scanning electron microscopy and particle distribution by IPS U analyzer. Findings: The ceramic powders were characterized by irregular particle shape caused by grinding process. The only exception was Metco 204 powder, with spheroid-shaped particles. Research limitations/implications: The ceramic powders were made of zirconium oxide, which was stabilized by different types of oxides: yttrium (Metco 204), calcium (Metco 201) and magnesium (Metco 210). It is necessary to assess influence of the oxide, stabilizing the yttrium oxide, on stability of obtained ceramic layer of TBC coating. Practical implications: Powders analysed in the article will be submitted to plasma spraying process with different methods. Originality/value: The ceramic powder used for LPPS-Thin Film process were first time described.
11
Content available Geochemical study of precipitates in the architectural surfaces from Bern, Switzerland
75%
Huber M. A. , Hałas S.
Annales Universitatis Mariae Curie-Skłodowska, sectio AAA – Physica
|
2015
|
tom 70
EN
This geochemical study aims to resolve genesis of precipitation spots on the walls on the Nydeggbrücke in Bern, Switzerland. The bridge is composed of Jurassic limestone and dolomites and coated on both sides with Miocene flysch sandstone. As a result of infiltration of aqueous solutions derived directly from the road embankment into the sandstone, sulfate encrustation on the walls of sandstone has been formed.The study of these precipitates using optical and electron microscopy clearly shows dominant sulfate phases are gypsum (calcium sulfate), mirabilite (sodium hydrated sulfate) and polyhalite (potassium, calcium and magnesium sulfate). Impurities of Ni, Cu, Zn and Pb was encountered by ICP-MS analysis. Identified polymetallic mineralization is associated with the infrastructure of the bridge and the accumulation of pollution from vehicular traffic. This is also confirmed by sulfur and oxygen stable isotope analyses of sulfates.
12
Content available Bacteria meet nanoparticles - electron microscopy insights
75%
Pajerski W. , Gołda-Cępa M. , Pawłyta M. , Parlińska-Wojtan M. , Brzychczy-Włoch M. , Kotarba A.
Engineering of Biomaterials
|
2020
|
tom Vol. 23, no. 158 spec. iss.
39
13
Content available CHARACTERISATION OF THIN CHITOSAN FILMS FOR GUIDED TISSUE REGENERATION PURPOSES
75%
Lewandowska K. , Furtos G. F.
Progress on Chemistry and Application of Chitin and its Derivatives
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2017
|
tom 22
118-124
EN
The morphology and structure of thin films containing chitosan (Ch) with montmorillonite (MMT) were characterised by scanning electron microscopy (SEM), atomic force microscopy (AFM) and attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). Thin films of two chitosan samples and a composition of chitosan with montmorillonite were formed by casting methods from acetic acid solutions and were soaked in a simulated body fluid (SBF) solution at 37C for 14 days. The samples were compared before and after soaking. The obtained results showed growth of new phases containing calcium in all prepared films.
14
Content available Wykorzystanie mikroskopii elektronowej i analizy komputerowej obrazu w badaniach mikrostruktury żywności®
75%
Janowicz M. , Janowicz L. , Jankowski M.
Postępy Techniki Przetwórstwa Spożywczego
|
2018
|
tom nr 1
102--108
PL
Struktura jest bardzo ważną cechą charakterystyczną dla różnych rodzajów żywności, dlatego też zachowanie jej odpowiedniej formy, bądź możliwość jej modyfikowania są głównym celem wszystkich stosowanych metod przetwarzania. Jest również podstawowym czynnikiem wpływającym na ocenę jakości owoców i warzyw. Do badań nad właściwościami fizycznymi żywności coraz częściej wykorzystywana jest mikroskopia oraz komputerowa analiza obrazu jako nie inwazyjne metody obrazowania cech struktury żywności.
EN
The structure is a very important characteristic characteristic for various types of food, and therefore the preservation of its appropriate form or the possibility of modifying it is the main goal of all the processing methods used. It is also a basic factor affecting the assessment of fruit and vegetable quality. Research into physical properties of food increasingly uses microscopy and computer image analysis as noninvasive methods of imaging food structure characteristics.
15
Content available remote Chloritisation of hornblende and biotite : a HRTEM study
75%
Ferrow E. , Bagiński B.
Acta Geologica Polonica
|
1998
|
tom Vol. 48, no. 1
107-113
EN
The coarse textures produced by hydration of hornblende and biotite during retrograde metamorphism of the rocks of the K?odzko-Z?oty Stok area were identified easily by both optical microscopy and scanning electron microscopy (SEM). However, the micro-textures that are a few unit cell in dimensions were identified through high resolution transmission electron microscopy (HRTEM) only. For the alteration of biotite to chlorite the replacement of potassium in the interlayer by a brucite-like layer and the subsequent increase in volume was observed. There were, however, some missing brucite-like layers within the chlorite units. Moreover, both topotactic and low angle replacement of biotite to chlorite were identified. For the direct hydration of hornblende to chlorite, HRTEM and selected area electron diffraction pattern (SAED) showed that the c* and a* of chlorite were parallel to the b* and a* of hornblende, respectively. Nevertheless, other orientation relationships were also observed by optical microscopy.
16
Content available remote Recent advancements in the “water-window” microscopy with laser-plasma SXR source based on a double stream gas-puff target
75%
Wachulak P. W.
Opto-Electronics Review
|
2016
|
tom Vol. 24, No. 3
144--154
EN
An overview of our recent developments, regarding “water−window” soft X−ray (SXR) microscopy based on a laser−plasma double stream gas puff target sources is presented. The work, presented herein, describes two approaches to SXR microscopy. The first one is a low spatial resolution, achromatic SXR microscopy, employing Wolter type−I objective. The second one is a nanometer spatial resolution SXR microscopy, with the use of a Fresnel zone plate objective, for imaging various objects with quasimonochromatic light, emitted from a double stream gas puff target based short wavelength source. The developments regarding both systems are presented, as well as the possible applications, for which the SXR microscope was already employed. Such compact, table−top size, laboratory type microscopy setups may be employed in the near future for complementary−like studies to other, often used, microscopy techniques.
17
Content available Notes on the early history of paper in Central Asia based on material evidence
75%
Helman-Ważny A.
Z Badań nad Książką i Księgozbiorami Historycznymi
|
2020
|
tom 14
|
nr 3: Asian paper as writing support
341-366
EN
The cultural background of the proliferation of early paper in Central Asia and its use outside China has rarely been explored. Since written sources are inconclusive regarding the origins and spread of papermaking, archaeological and material evidence assumes increased importance. The preserved manuscripts found along the Silk Road have been used as a key source in the study of religion, literature and the cultural history of Central Asia. They have, however, rarely been viewed as artefacts in their own right, with their own specific form and produced by a specific technology. Paper is one of the most important physical aspects of a manuscript and at the same time bears witness to early papermaking technologies. As an introduction to the volume Asian paper as writing support, this article outlines the early history and technology of papermaking as revealed by the oldest manuscripts in existence, those found along the Silk Road.
18
Badania mikroskopowe mieszanin asfalt - odpad polistyrenu spienionego
75%
Brzozowska T. , Grudzińska E. , Ciesińska W. , Osowiecka B. , Liszyńska B.
Prace Naukowe Instytutu Technologii Organicznej i Tworzyw Sztucznych Politechniki Wrocławskiej. Konferencje
|
2003
|
tom Vol. 52, nr 25
311-314
PL
Przedstawiono wyniki badań mikroskopowych wpływu odpadów polistyrenu wstępnie spęcznionych plastyfikatorem (olejem silnikowym zużytym) na strukturę asfaltów drogowych (D-70 i D-200). W wyniku przeprowadzonych badań mikroskopowych stwierdzono, że decydujący wpływ na otrzymanie jednorodnych kompozycji asfaltowo-polimerowych mają warunki homogenizacji oraz stężenie polimeru w asfalcie.
EN
The properties of road with admixture of polystyrene waste (previously swollen with spent engine oil as a plasticizer) have been the subject of microscope analysis. The microscope examination show that the crucial factors for obtaining homogenous mixture asphalts-polymer are: homogenization conditions and polymer concentration.
19
Content available Supported by 2D and 3D Imaging Methods Investigation of the Influence of Fiber Orientation on the Mechanical Properties of the Composites Reinforced with Fibers in a Polymer Matrix
75%
Saraczyn R. , Deroszewska M. , Kowaluk T. , Skołek E. , Rządkowski W. , Myszka D.
Advances in Science and Technology. Research Journal
|
2023
|
tom Vol. 17, no 3
170--183
EN
The aim of this study was to examine the behavior of the carbon fiber reinforced polymer (CFRP) composites depending on the fiber orientation and to understand the influence of microstructural discontinuities on mechanical properties. For the tests 210 gsm prepreg composite and 200 gsm carbon fabric with polymer matrix have been used. Samples were structured and later examined according to the ASTM-D3039 and ASTM-D3878 (equivalents are ISO 20975, ISO 527-4 and ISO 527-5). Accordingly, to the number of layers, three ways of the fibers arranging in relation to the applied force were used. Mechanical properties were determined in a static tensile test. The results of imaging studies, which included analyzes of Digital Image Correlation, Computed Tomography and Scanning Electron Microscopy, showed structural discontinuities, specific stress distribution and propagation of stresses depending on the production technology, which were correlated with the obtained strength results. The source of the gradual development of the degradation of the composite structure was observed in local microdamages and microcracks. As a result of a sub-critical crack growth within the resin matrix material, the defects are subject to a complex, multi-axial stress field on the micro-scale, even if the globally applied force is axial. Samples in which the load was applied along the axis of the fibers behave like an elastic material, while samples, where the force is applied at an angle to the axis of the fibers, tend to behave like an elastic-plastic material.
20
Content available Application of scanning electron microscopy and microanalysis [SEM] in the study of certain processes in Mollic Gleysols
75%
Drozd J. , Licznar M. , Licznar S.
|
1994
|
tom 08
|
nr 1
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