Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Spin" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-5 z 5
    Tytuł:
    Controlling and manipulation of red blood cells by evanescent waves
    Autorzy:
    Angelsky, O. V.
    Zenkova, C. Y.
    Maksymyak, P. P.
    Maksymyak, A. P.
    Ivanskyi, D. I.
    Powiązania:
    https://bibliotekanauki.pl/articles/174453.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    erythrocytes
    evanescent wave
    spin momentum
    Opis:
    A theoretical model for describing the influence of the evanescent wave on the red blood cell (RBC, erythrocyte) in the blood plasma is suggested in this research work. Two optical schemes for creating an evanescent wave and the features of the created field’s effect on the erythrocyte are considered. The conditions for the formation of optical forces and optical momentum, in particular, of the vertical spin of the evanescent wave, which causes a transverse displacement of the erythrocyte, are proposed. The use of a linearly polarized plane wave with azimuth of ±45° in a model experiment, specially suggested in this work, allows for visualization of the transverse controlled motion of the erythrocyte, which enables to claim about new possibilities for controlling microobjects in biology and medicine.
    Źródło:
    Optica Applicata; 2019, 49, 4; 597-611
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optical torques and forces in birefringent microplate
    Autorzy:
    Zenkova, C. Y.
    Ivanskyi, D. I.
    Kiyashchuk, T. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/174384.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    evanescent wave
    spin angular momentum
    birefringent microplate
    Opis:
    The paper presents a theoretical model for calculating the optical forces caused by the density of spin and orbital momentum and optical torque, caused by the angular momentum typical for a circularly polarized beam or a circular component of an elliptically polarized beam. Total internal reflection at the plate–air interface implemented by the birefringent plate spattered with nanoparticles of gold creates the conditions for the allocation of the predominant action of the vertical spin of the evanescent wave, which has recently been predicted theoretically.
    Źródło:
    Optica Applicata; 2017, 47, 3; 483-493
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Disturbing effect of different dental materials on the MRI results : preliminary study
    Autorzy:
    Burchardt, D. V.
    Borysewicz-Lewicka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/306511.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    dental materials
    MRI
    spin-lattice
    relaxation time T
    materiały stomatologiczne
    Opis:
    The influence of different dental materials used for conserving reconstruction of teeth on the magnetic resonance imaging assessed on the basis of changes in NMR proton relaxation T1 of the physiological environment represented by the physiological salt solution has been studied. The dental materials studied varied in a wide range of chemical compositions: composites (Silux Plus made by 3M Dental, Tetric Cream made by Ivoclar-Vivadent), pH controlling composite (Ariston pHc made by Vivadent), hybrid glass ionomer (Vitremer made by 3M Dental), compomer (Hytac made by ESPE), amalgamate without the gamma phase (Septalloy made by Septodont), chemocured phosphate cement (Agatos made by Chema-Elektromet), phosphate cement with addition of silver (Argil made by Spora-Dental). The reference standard was a 0.9% physiological solution of NaCl. The relative deviations of the spin-lattice relaxation time vary from –18.5% to +24.0%. From the point of view of magnetic resonance imaging, the materials significantly disturbing the tomographic images are the amalgamate Septalloy-Septodont and glass ionomer Vitremer-3M Dental, while the composite Tetric Cream-Vivadent has insignificant effect.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2013, 15, 4; 49-55
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Barriers to the development of spin-offs : a fuzzy-set-theoretic approach
    Autorzy:
    Kwiotkowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/406637.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    academic entrepreneurship
    university spin-of
    barriers to growth
    fuzzy-set-theoretic approach
    fuzzy set qualitative comparative analysis
    przedsiębiorczość akademicka
    bariery wzrostu
    jakościowa analiza porównawcza
    zbiór rozmyty
    Opis:
    University spin-offs have idiosyncratic strengths in comparison to other new firms. However, evidence also shows that Polish university spin-offs have a low survival rate, and only a small percent of them grow into sustainable businesses. The purpose of this paper is to carry out an empirical study to determine the nature of barriers to the growth of Polish university spin-offs, in order to address the two major research questions considered by this paper: what are the major barriers to growth, and which combinations of these barriers have the greatest impact on the performance of the university spin-offs under study? Firstly, this paper attempts to explore these research questions through a literature review and pilot interviews, based on which a questionnaire was developed. Secondly, this study attempts to address the research questions through a fuzzy-set-theoretic approach by using a software package, such as fs/QCA- fuzzy set Qualitative Comparative Analysis. This paper identifies six key groups of barriers to the growth of university spin-offs in Poland, namely financial, competence, psychological, organizational, informational and formal barriers. Moreover, four alternative configurations of key groups of barriers to the growth of spin-offs that lead to low performance among the organizations examined are distinguished using fs/QCA. This problem is interesting not only from a scientific, but also a practical, point of view, pointing out the need for increased attention, not only from academic entrepreneurs themselves, but also for greater effort from universities and the government to cultivate university spin-offs. Most importantly, simultaneous action in all of these directions is necessary. The continuation of such research is also important, which will consider, on the one hand, a larger sample of firms, and, on the other hand, the results achieved so far and their re-conceptualization.
    Źródło:
    Operations Research and Decisions; 2018, 28, 4; 31-46
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electron paramagnetic resonance studies of manganese and cobalt ions in YAlO3 crystals
    Autorzy:
    Stefaniuk, I.
    Rogalska, I
    Suchocki, A
    Berkowski, M.
    Cieniek, B.
    Potera, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/174068.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    electron paramagnetic resonance (EPR)
    spin Hamiltonian
    Mn2+
    Mn4+
    Co2+
    Fe3+
    Cr3+
    Nd3+ and Er3+ ions
    YAlO3 (YAP) crystals
    Opis:
    The results of X-band electron paramagnetic resonance measurements of Mn2+ and Mn4+ ions in YAlO3 (YAP) crystals in the temperature range 100–300 K are presented. Additionally, we observe electron paramagnetic resonance spectra of unintentional impurities Fe3+ and Cr3+ in YAP crystals. The angular dependence for Mn ions in YAP crystals can be presented. We aim at obtaining a better insight into the spectroscopic properties of paramagnetic Mn centers and structural information about their nearest environment in YAP host and at determining the valence of manganese ion. In this paper we compare electron paramagnetic resonance spectra for Co and Mn ions in YAP crystals.
    Źródło:
    Optica Applicata; 2014, 44, 1; 113-121
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies