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Wyświetlanie 1-15 z 93
Tytuł:
Software for quality evaluation of a PS plate edge
Autorzy:
Kluszczyński, K.
Trawiński, T.
Szczygieł, M.
Boeren, E
Skibniewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/97680.pdf
Data publikacji:
2011
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
PS plate
quality PS plate
FUJIFILM
Opis:
Pre-sensitized (PS) plates are specially treated and coated aluminium sheets, widely used for offset printing. PS plates used in the Computer to Plate technology require strict quality control of the plate’s edges, disturbed during various finishing processes like cutting on guillotines or slitting. For this purpose a special tests stand had been built by the Silesian University of Technology, in cooperation with one of the largest PS plates manufacturer in the world - FUJIFILM. The paper describes the software, written for the purpose of evaluation of various defects caused during finishing processes.
Źródło:
Computer Applications in Electrical Engineering; 2011, 9; 45-59
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-Contact Luminescence Lifetime Microthermometry using Scintillation Sensors
Autorzy:
Mykhaylyk, V.
Kraus, H.
Wagner, A.
Powiązania:
https://bibliotekanauki.pl/articles/1030994.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Ps
Opis:
The paper describes an original technique for non-contact in situ monitoring of the temperature developed for experiments in a vacuum environment at the tender X-ray beamline I23 of the Diamond Light Source. The sample temperature is established by determining the luminescence decay constant of a Bi₄Ge₃O₁₂ (BGO) scintillation sensor. BGO is ideally suited for a temperature range of 30 K to 130 K, in which its decay constant shows a strong temperature dependence. The principle of the method, system design and application examples are discussed and the performance and potential of the technique is assessed.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 1108-1111
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemiluminescence Used in Biochemical Investigations. An Application of the Lanthanide Ions as a Chemiluminescent Probe
Autorzy:
Elbanowski, M.
Staniński, K.
Kaczmarek, M.
Powiązania:
https://bibliotekanauki.pl/articles/1929807.pdf
Data publikacji:
1993-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.60.Ps
Opis:
This article concerns problems related to chemiluminescence and briefly fluorescence, which will be discussed. It also gives a review of application of the chemiluminescent method in chemistry, biology and medicine, in the absence of lanthanide ions and in their presence.
Źródło:
Acta Physica Polonica A; 1993, 84, 5; 993-1002
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Damping Properties and Density of Helmet Liners Made of Expanded Polystyrene (EPS)
Autorzy:
Trzaskalska, M.
Chwastek, R.
Powiązania:
https://bibliotekanauki.pl/articles/2049565.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
expanded PS
ski liners
PS foams
damping factor
bulk density
Opis:
The purpose of the work was to determine the infuence of the bulk density ρz of granules, processing parameters and the density of ski inserts ρw made of expanded polystyrene (EPS) on their damping properties. For this aim liners for ski helmets with 3 different bulk densities were made. Sintering time and sintering pressure were also changed. The percentage damping factor η was determined on the basis of the results obtained in the rebound resilience test. Based on the analysis of the obtained data, it was found that increasing the density of EPS pads ρw increases their damping properties and at the same time contributes to a decrease in elasticity, increase in hardness and brittleness of EPS products.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 1; 339-344
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of N$\text{}_{3}^{-}$ Ions on Chemiluminescence of the Eu(II)/Eu(III)-H$\text{}_{2}$O$\text{}_{2}$ System
Autorzy:
Elbanowski, M.
Staninski, K.
Kaczmarek, M.
Lis, S.
Powiązania:
https://bibliotekanauki.pl/articles/1945476.pdf
Data publikacji:
1996-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.60.Ps
78.55.-m
Opis:
The basic system of chemiluminescence investigations of relevant biological and inorganic compounds consists of Eu(II)/Eu(III) - H$\text{}_{2}$O$\text{}_{2}$. In these studies the increase in Eu(III) ion emission intensity usually results from an effective complexation reaction. In the present study, the N$\text{}_{3}^{-}$ ions are used as a ligand. The increase in the chemiluminescence intensity of the Eu(III) ion, the pH influence (in the range of 4.5-7.5) on the chemiluminescence intensity of the Eu(III) ion, as well as the quenching of the $\text{}^{5}$D$\text{}_{0}$ excited state of the Eu(III) ion are observed due to N$\text{}_{3}^{-}$ complexation. Taking into account the well-known Fenton system [Fe(II)/Fe(III) - H$\text{}_{2}$O$\text{}_{2}$], containing additionally the N$\text{}_{3}^{-}$, Eu(III) or Sm(III) ions, we found that the Eu(III) or Sm(III) ions were excited as a result of energy transfer process. A mechanism of the studied reactions is proposed.
Źródło:
Acta Physica Polonica A; 1996, 90, 1; 101-108
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research and Development of $ZnBO_{4}$ (B = W, Mo) Crystal Scintillators for Dark Matter and Double Beta Decay Searching
Autorzy:
Dubovik, A.
Vostretsov, Yu.Ya.
Grinyov, B.
Danevich, F.
Kraus, H.
Nagornaya, L.
Mikhailik, V.
Tupitsyna, I.
Powiązania:
https://bibliotekanauki.pl/articles/1549650.pdf
Data publikacji:
2010-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.10.Fq
78.70.Ps
Opis:
Oxide crystal scintillators play a considerable role in fundamental and applied researches. However, working out of new generation of high-sensitivity equipment and new methods of research puts higher requirements. The $ZnBO_{4}$ (B = W, Mo) crystals were grown from charge in platinum crucibles with high frequency heating, using the Czochralski method. The raw powder with optimum composition was prepared by solid phase high temperature synthesis using ZnO and $BO_{3}$ (B = W, Mo) with 4-5N purity. Single crystals with sizes up to ∅ 50 × 100 mm were grown and scintillation elements of various sizes and shapes (cylinders, rectangular and hexahedron prisms) were produced. High spectrometric characteristics were obtained for $ZnWO_{4}:R$ = 8-10% under excitation by $\text{}^{137}Cs (E_{γ}$=662 keV), low radiation background (less than 0.2 mBq/kg) and low afterglow (0.002%, 20 ms after excitation). The obtained results demonstrate good prospects for $ZnWO_{4}$ and ZnMoO_{4} crystal scintillators for application in low-count rate experiments, searching for double beta decay processes, interaction with dark matter particles, and also studies of rare decay processes. The material has also a good potential for application in modern tomography, scintillation bolometers and for other major researches using scintillators.
Źródło:
Acta Physica Polonica A; 2010, 117, 1; 15-19
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Composition of CIS Compound Affected by Xe⁺ Irradiation
Autorzy:
Tashlykov, I.
Zukowski, P.
Silvanovich, D.
Gremenok, V.
Powiązania:
https://bibliotekanauki.pl/articles/1402236.pdf
Data publikacji:
2015-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
06.30.Bp
Opis:
The paper presents the results of investigation of element composition of CuInSe₂ (CIS) compounds obtained by vertical Bridgman technique and on a glass substrate by the thermal deposition of Cu-In thin films with the subsequent annealing in selenium vapour. The depth profile distribution of elements in these samples using the Rutherford backscattering spectrometry/channeling technique in conjunction with the RUMP code simulation is also discussed.
Źródło:
Acta Physica Polonica A; 2015, 128, 5; 927-930
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SPM Characterization of Titanium Disilicide Nanostructures Grown on a Ni-Modified Si(100) Substrate
Autorzy:
Koczorowski, W.
Bazarnik, M.
Czajka, R.
Powiązania:
https://bibliotekanauki.pl/articles/1493616.pdf
Data publikacji:
2011-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ef
68.37.Ps
Opis:
The paper presents our recent investigations of the early stage growth of titanium silicides on a modified Si(100) substrate. The substrate was modified by deposition of a minute amount of Ni atoms, and the subsequent flash annealing. This process led to the creation of parallel defect lines on the Si(100) surface. We expected TiSi_2 to form elongated structures on top and/or between the defect lines. Though this idea failed, stable nanostructures were observed and characterized using scanning probe microscopy (scanning tunneling microscopy and atomic force microscopy) methods.
Źródło:
Acta Physica Polonica A; 2011, 120, 3; 480-484
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elemental Composition, Topography and Wettability of $Pb_{x}Sn_{1 - x}S$ Thin Films
Autorzy:
Tashlykov, I.
Turavets, A.
Gremenok, V.
Żukowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1366292.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
06.30.Bp
Opis:
PbSnS thin films were prepared by hot-wall vacuum evaporation. The Rutherford backscattering technique was employed for the investigation of $Pb_{x}Sn_{1 - x}S$ thin films composition. With a help of atomic force microscopy the main stages in the development of the thin films were characterized. Contact angle measurements of water drop on $Pb_{x}Sn_{1 - x}S$ thin films have been conducted on our original setup.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1339-1343
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The four rationales of technology transfer~identifying technology transfer risks~
Autorzy:
Martinez, I. A. G.
Powiązania:
https://bibliotekanauki.pl/articles/99495.pdf
Data publikacji:
2011
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
technology transfer
four rationales
5Ps
Opis:
Up until now, most technology transfer activities have been carried out on trial-and-error basis. However, recent studies have emerged to provide scientifically-based guides for technology transfer in recognition of the fact that technology transfer is important for global advancement. Along with these studies, this research aims to present a systematic methodology, called the Four Rationales of Technology Transfer, for identifying the risks of technology transfer. This methodology is derived from an empirical study conducted on 50 recently-implemented technology transfer projects. With the proposal of the methodology of Four Rationales of Technology Transfer and the presentation of the results of the empirical study, it is the hope of this research that future activities of technology transfer will become more successful.
Źródło:
Journal of Machine Engineering; 2011, 11, 3; 87-96
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between 3D surface roughness parameters and load capacity of adhesive joints after shot peening
Zależność pomiędzy parametrami chropowatości powierzchni 3D a nośnością połączeń klejowych po pneumokulkowaniu
Autorzy:
Zielecki, Władysław
Świrad, Sławomir
Ozga, Ewelina
Powiązania:
https://bibliotekanauki.pl/articles/31232973.pdf
Data publikacji:
2023
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
shot peening
surface roughness
Hartley's PS/DS-P Ha3 plan
pneumokulkowanie
chropowatość powierzchni
plan Hartleya PS/DS-P Ha3
Opis:
The aim of the article was to investigate whether roughness parameters in a 3D system can be used to assess the load capacity of adhesive lap joints strengthened in the shot peening process. The analyzes were carried out for single-lap adhesive joints made of EN AW-2024-T3 aluminum alloy, whose overlaps were shot peened for 60 to 180 s using balls with a diameter of 0.5 to 1.5 mm with a compressed air pressure of 0.3 to 0.5 MPa. As a result of the regression and correlation analysis, it was found that within the adopted range of input parameters variability, the load capacity of adhesive joints subjected to shot peening is most closely related to the roughness parameter Sdr. It has been shown that increasing the value of the Sdr parameter contributes to increasing the load capacity of adhesive joints. A mathematical model describing the impact of treatment time, balls diameter and compressed air pressure on the value of the Sdr parameter was also built. The model was built in accordance with the the Hartley's PS/DS-P:Ha3 plan methodology. The obtained results allow to conclude that the Sdr parameter can be used to predict the load capacity of adhesive joints after shot peening and thus to assess the strengthening treatment (within the assumed range of input parameters variability). Additionaly, the simplicity and low cost of roughness measurements justify the use of this method in industrial purposes.
Celem artykułu było zbadanie, czy parametry chropowatości w układzie 3D mogą być stosowane do oceny nośności zakładkowych połączeń klejowych, umacnianych w procesie pneumokulkowania. Analizy przeprowadzono dla połączeń klejowych jednozakładkowych ze stopu aluminium EN AW-2024-T3, których zakadki pneumokulkowano w czasie od 60 do 180 s, kulkami o średnicy od 0,5 do 1,5 mm z ciśnieniem wynoszącym od 0,3 do 0,5 MPa. W wyniku przeprowadzonej analizy regresji i korelacji stwierdzono, że w przyjętym zakresie zmienności parametrów wejściowych, nośność połączeń klejowych poddanych pneumokulkowaniu jest najsilniej związana z parametrem chropowatości Sdr. Wykazano, że zwiększanie wartości parametru Sdr, przyczynia się do zwiększania nośności połączeń klejowych. Zbudowano również model matematyczny, opisujący wpływ czasu obróbki, średnicy kulek i ciśnienia sprężonowego powietrza na wartość parametru Sdr. Model zbudowano zgodnie z metodyką planu Hartleya PS/DS-P:Ha3. Uzyskane wyniki pozwalają na stwierdenie, że parameter Sdr może być wykorzystywany do przewidywania nośności połączeń klejowych po pneumokulkowaniu, a tym samym do oceny obróbki umacniającej (w przyjętym zakresie zmienności parametrów wejściowych), a prostota i niskie koszty pomiarów chropowatości przemawiają za słusznością użycia tej metody w celach przemysłowych.
Źródło:
Technologia i Automatyzacja Montażu; 2023, 3; 35-43
2450-8217
Pojawia się w:
Technologia i Automatyzacja Montażu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Data correction method of the persistent scatterer interferometric synthetic aperture radar technique in landslide surface monitoring
Autorzy:
Xie, Mo-Ewn
Lv, Fu-Xia
Wang, Li-Wei
Powiązania:
https://bibliotekanauki.pl/articles/89050.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
landslide monitoring
PS-InSAR technology
reservoir landslide
error analysis
Opis:
Landslides generally cause more damage than first predicted. Currently, many methods are available for monitoring landslides occurrence. Conventional methods are mainly based on single-point monitoring, which omits the aspect of variation in large-scale landslides. Due to the development of radar satellites, the differential interferometric synthetic aperture radar technique has been widely used for landslide monitoring. In this study, an experimental region in the Wudongde Hydropower Station reservoir area was studied using archived spaceborne synthetic aperture radar (SAR) data collected over many years. As the permanent scatterer interferometric SAR (PS-InSAR) technique is an advanced technology, it could be suitably used to overcome the time discontinuity in long time series. However, the accuracy of date processing obtained using the PS-InSAR technique is lower than that obtained using the single-point monitoring method. The monitoring results of the PS-InSAR technique only demonstrate the moving trend of landslides and do not present the actual displacement. The Advanced Land Observation Satellite and a high-precision total station were used for long-term landslide monitoring of the Jinpingzi landslide at the Wudongde Hydropower Station reservoir area. Based on a relationship analysis between the data obtained using the PS-InSAR technique and the total station, a revised method was proposed to reduce the errors in the PS-InSAR monitoring results. The method can not only enhance the monitoring precision of the PS-InSAR technology but also achieve long-term monitoring of landslide displacement from a bird's-eye view.
Źródło:
Mining Science; 2019, 26; 91-109
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure and Cathodoluminescence of Y₂O₃:Eu Thin Films obtained at Different Conditions
Autorzy:
Bordun, I.
Bordun, O.
Kukharskyy, I.
Tsapovska, Zh.
Powiązania:
https://bibliotekanauki.pl/articles/1030939.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
78.60.Hk
81.15.-z
Opis:
The structure of the surface and spectra of the cathodoluminescence of Y₂O₃:Eu thin films when changing the activator concentration in the range 1.0-7.5% by mole obtained by RF sputtering were investigated. On the base of the shape of the cathodoluminescence spectra at different concentrations of the activator, the possibility of irregular solutions creating of yttrium and europium oxides and the structural features of the small and large crystallites forming the film Y₂O₃:Eu is shown. The dependence of the cathodoluminescence intensity on the energy of the exited electrons and current density of electron irradiation was established.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 914-917
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the Properties of Molybdenum Nanocube Crystals Deposited by Dc Sputtering
Autorzy:
Borghei, S.
Powiązania:
https://bibliotekanauki.pl/articles/1398729.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Cd
81.07.-b
68.37.Ps
Opis:
Cubic molybdenum (Mo) nanocubes were deposited on a silicon substrate via dc sputtering. This method has been widely used to prepare the thin films containing the crystalline nanostructures. We used this approach to deposition and after that, the characterization of Mo nanocubes. Formation of these cubes was investigated by atomic force microscopy, X-ray diffractometry and four point probes, respectively. First, the mean sizes of the molybdenum cubic nanoparticles were studied under different Mo film thicknesses of 50, 80, 110, and 140 nm. Structural characterizations indicate that the as-deposited Mo nanocubes have different side-length and their distribution over the surface has been measured, separately. In the next step, according to the X-ray diffractometry, Mo crystallites were all along the (110) crystal planes of cubic structure. Finally, electrical characterizations reported that at a deposition power of 54 W, our samples exhibit an electrical resistivity, in the range of 0.92×10¯⁴ Ω cm to 0.58×10¯⁴ Ω cm.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 607-609
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Giant Magnetoelectricity in Aluminium Substituted Y-Hexaferrites
Autorzy:
Novák, P.
Chlan, V.
Knížek, K.
Powiązania:
https://bibliotekanauki.pl/articles/1506886.pdf
Data publikacji:
2010-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.85.+t
71.20.Ps
75.50.Gg
Opis:
The electron structure of Al containing Y-hexaferrite that exhibits the giant magnetoelectricity is calculated. Results show strong preference of Al for octahedral sites. Orbital moment of some of the iron ions is found to be unusually large.
Źródło:
Acta Physica Polonica A; 2010, 118, 5; 723-724
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 93

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