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Wyszukujesz frazę "Kohout, M." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Wheel/rail contact geometry research and development of locomotive Class 744.0 as examples of R&D activities of the Jan Perner Transport Faculty
Badania geometrii kontaktu koło/szyna i badania lokomotywy serii 744.0 jako przykłady działalności R&D Wydziału Transportu Jana Perner
Autorzy:
Zelenka, J.
Michalek, T.
Kohout, M.
Powiązania:
https://bibliotekanauki.pl/articles/251725.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
locomotive 744.0
Department of Transport
University of Pardubice
lokomotywa 744.0
Wydziału Transportu
Uniwersytet w Pardubicach
Opis:
The Jan Perner Transport Faculty (JPTF) of the University of Pardubice and especially its Department of Transport Means and Diagnostics deals with research and development activities in the branch of railway vehicles. There are two basic reasons for that. At first, it is incumbent upon all academic workers to pursue the science and research according to the Czech law concerning the universities. And the second reason is a relation to the educational process - if the JPTF wants to offer a high quality education in the specialization "Railway Vehicles" (which is offered in Czech as well as English language today) to its students, the research activities of the academic workers (i.e. the teachers) allow them to stick to the newest trends in the branch. In this article, particular examples of cooperation of the JPTF with producers as well as operators of railway rolling stock are presented as a contribution of the faculty to the research and development in the branch of railway vehicles.
W artykule przedstawiono aktywność badawczą Wydziału Transportu Uniwersytetu w Pardubicach (Czechy) w zakresie pojazdów kolejowych. Scharakteryzowano wyposażenie laboratoriów wykorzystywane do badań teoretycznych i eksperymentalnych. Skoncentrowano się na zagadnieniach dostosowania profili kól do specyficznych warunków ruchowych oraz współpracy przy konstrukcji nowej lokomotywy.
Źródło:
TTS Technika Transportu Szynowego; 2016, 1-2; 80-83
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic Hyperfine Fields of Nanoperm Alloys
Autorzy:
Miglierini, M.
Kohout, J.
Lančok, A.
Šafářová, K.
Powiązania:
https://bibliotekanauki.pl/articles/1428957.pdf
Data publikacji:
2012-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Tt
75.75.-c
76.80.+y
76.60.-k
68.37.Rt
Opis:
Magnetic hyperfine fields of $Fe_{90}Zr_7B_3$ Nanoperm nanocrystalline alloy are characterized by $\text{}^{57}Fe$ Mössbauer spectrometry and $P^{57}Fe$ NMR as well as by magnetic force microscopy. $\text{}^{57}Fe$ NMR enables to distinguish a broad signal of iron atoms located in a residual amorphous matrix from a narrow one which belongs to Fe in nanograins. The former coincides with the distribution of hyperfine fields obtained from $\text{}^{57}Fe$ Mössbauer spectroscopy. In addition, it is possible to make a distinction between NMR signals of the Fe nanograins located in magnetic domains from that of the nanograins positioned in domain walls. This is confirmed by magnetic force microscopy where appearance of maze-domains is observed.
Źródło:
Acta Physica Polonica A; 2012, 121, 5-6; 1263-1265
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature behaviour of hyperfine magnetic fields in a Fe-Co-Si-B-Mo-P metallic glass followed with ⁵⁷Fe Mössbauer spectrometry
Autorzy:
Cesnek, M.
Miglierini, M.
Kmječ, T.
Kohout, T.
Amini, N.
Janičkovič, D.
Matúš, P.
Powiązania:
https://bibliotekanauki.pl/articles/1053048.pdf
Data publikacji:
2017-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Kj
75.60.Ej
75.75.-c
76.80.+y
Opis:
Amorphous glass with nominal chemical composition Fe₅₁Co₁₂Si₁₆B₈Mo₅P₈ was studied by combination of the Mössbauer spectroscopy and magnetic measurements in order to characterize magnetic and structural features. Temperature evolution of the Mössbauer spectra revealed presence of broad distribution of hyperfine magnetic field at lower temperatures which vanishes with increase of temperature. The Curie temperature estimated from the Mössbauer spectroscopy experiments is T_{C} ≈ 392 K. This value is in a good agreement with that obtained by magnetic measurements (T_{C}=397 K). The Mössbauer spectroscopy spectra of the sample annealed at 823 K revealed a presence of crystalline components. This temperature is notably lower than the expected temperature of the onset of crystallization observed by differential scanning calorimetry ( ≈ 835 K).
Źródło:
Acta Physica Polonica A; 2017, 131, 4; 744-746
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hyperfine Field in YIG with Charged Substitution
Autorzy:
Kohout, J.
Štĕpánková, H.
Englich, J.
Novák, P.
Kučera, M.
Nitsch, K.
Powiązania:
https://bibliotekanauki.pl/articles/2013158.pdf
Data publikacji:
2000-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
76.60.-k
75.50.Gg
Opis:
$\text{}^{57}$Fe NMR spectra were measured on thin films of yttrium iron garnet with divalent (Ca$\text{}^{2+}$) and tetravalent (Ge$\text{}^{4+}$) cation substitutions using the spin echo technique at 4.2 K. A series of Y$\text{}_{3-x}$Ca$\text{}_{x}$Fe$\text{}_{5-x}$Ge$\text{}_{x}$O$\text{}_{12}$ samples with 0 ≤ x ≤ 0.0 5 was prepared by an epitaxial growth from BaO/B$\text{}_{2}$O$\text{}_{3}$/BaF$\text{}_{2}$ flux on gadolinium gallium garnet substrate. Satellite lines corresponding to the iron ions having the Ge$\text{}^{4+}$ and Ca$\text{}^{2+}$ in their neighbourhood were identified. The sample with the germanium content of x(Ge) = 0.004 and (110) substrate orientation was used for a detailed study: NMR spectra of this sample were measured in an external magnetic field of 0.1 T applied along several directions in the plane of the film. The modification of the isotropic part and the anisotropy tensor of the hyperfine interaction caused by the Ge$\text{}^{4+}$ substituent were obtained from the experimental data. The results were compared with those previously reported for trivalent substitution (Ga$\text{}^{3+}$).
Źródło:
Acta Physica Polonica A; 2000, 97, 3; 519-522
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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