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 "43.35.Bf" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-7 z 7
    Tytuł:
    Experimental Methods Necessary in Acoustic Spectroscopy
    Autorzy:
    Linde, B.
    Skrodzka, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1383730.pdf
    Data publikacji:
    2015-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    43.35.Bf
    43.35.Fj
    Opis:
    The paper is an overview of a theory and experimental methods used in acoustic spectroscopy. Theoretical discussion about the ultrasonic relaxation process related to energy transfer between translational and vibrational degrees of freedom as well as to the existing of chemical isomerism is presented. Two basic ultrasonic measurements methods of absorption and velocity in very wide frequency range from hundreds kHz to tens GHz are described. Several experimental examples of advantage of the ultrasonic spectroscopy are also shown.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 1; 120-124
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Properties of Magnetosome Suspension under the Influence of Magnetic Field
    Autorzy:
    Józefczak, A.
    Molčan, M.
    Rozynek, Z.
    Hornowski, T.
    Skumiel, A.
    Timko, M.
    Tóthová, J.
    Kopčanský, P.
    Leszczyński, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1387965.pdf
    Data publikacji:
    2015-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Mm
    43.35.Bf
    Opis:
    The magnetotactic bacteria synthesize chains of nanosized magnetic particles that function as a compass needle to navigate in the direction of the earth's magnetic field. Magnetosomes are bacterial magnetic nanoparticles containing iron mineral crystals of magnetite or greigite, enveloped by a natural biological membrane. The objective of the work is to study the influence of magnetic field on rheology and acoustic properties of magnetosome suspension. Experimental results show a clear effect of the external magnetic field on the acoustic parameters such as velocity and attenuation of ultrasonic wave, and the viscosity of the suspension, arising from the biogenic magnetic particles aggregation.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 2; 629-631
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Solvation of Alcohols in n-Heptane and n-Propanol from the Acoustic Passynski Method
    Autorzy:
    Gliński, J.
    Burakowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1811514.pdf
    Data publikacji:
    2008-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    43.35.Bf
    43.35.+d
    61.20.-p
    61.20.Qg
    Opis:
    The method of Passynski of calculating the solvation numbers from compressibility was applied to solutions of short-chained normal alcohols in n-heptane and n-propanol. The dependences of solvation numbers on length of the solute molecules are surprisingly similar for both solvents. Applicability of the acoustic method for determining the solvation numbers in nonaquous systems, as well as for investigation of intermolecular interactions in them was proved. Some structural similarity of associated alcohol and hydrocarbon in liquid state is suggested.
    Źródło:
    Acta Physica Polonica A; 2008, 114, 6A; A-109-A-113
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydration of the Zwitterionic Forms οf Amino Acids from the Acoustic Passynski Method
    Autorzy:
    Burakowski, A.
    Gliński, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1811531.pdf
    Data publikacji:
    2008-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    43.35.Bf
    43.35.+d
    61.20.-p
    61.20.Qg
    Opis:
    In this communication, we report the compressibility measurements made on amino acids in water at 25°C, compared with aqueous short-chained amines and carboxylic acids. The effect of the charge caused by protonation of the amino group and/or deprotonation of the carboxylic one was tested. The concept of additivity of the hydration number with the constituents of solute molecule was applied and discussed.
    Źródło:
    Acta Physica Polonica A; 2008, 114, 6A; A-39-A-44
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structural Changes in Liquid Crystals Doped with Rod-Like Magnetic Particles Studied by Surface Acoustic Waves
    Autorzy:
    Bury, P.
    Veveričík, M.
    Kúdelčík, J.
    Kopčanský, P.
    Timko, M.
    Závišová, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032787.pdf
    Data publikacji:
    2017-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.30.Gd
    75.50.Mm
    43.35.Bf
    Opis:
    The effect of rod-like magnetic particles on liquid crystal (6CHBT) structural changes in electric and weak magnetic fields were studied by means of the attenuation of surface acoustic wave of frequency 30 MHz propagating along ferronematic liquid crystals. Three low volume concentrations (Φ=1×10¯⁵, 1×10¯⁴ and 1×10¯³) of rod-like magnetic particles were added to liquid crystal during its isotropic phase. Several measurements including the investigation of the effects of electrical and magnetic fields applied both separately and in conjunction as well as the influence of temperature on the surface acoustic wave attenuation were performed. The distinctive surface acoustic wave attenuation responses induced by both electric and magnetic fields in studied ferronematic liquid crystals have been observed suggesting both structural changes and the orientational coupling between magnetic moments of magnetic particles and the director of the liquid crystal. Obtained results confirmed the significant influence of the presence of magnetic particles on the structural properties and resulting behavior of 6CHBT liquid crystal.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 4; 913-915
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optoacoustic Measurements for Small-Volume Liquid Samples
    Autorzy:
    Egerev, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1377936.pdf
    Data publikacji:
    2015-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    43.35.Bf
    43.35.Sx
    05.70.-a
    42.40.My
    42.55.-f
    Opis:
    High sensitivity of optoacoustic measurement method makes it possible to use it for the analysis of the liquid samples having microliter volume. The core of any measurement optoacoustic system is represented by a so-called optoacoustic cell. The paper deals with a layered prism optoacoustic cell. It is well-suited for the small-volume sample analysis. In the paper, laser-induced elastic pulse in the layered prism cell is examined at the stage of its generation, at the stage of its propagation through the body of the cell, and at the stage of the wideband pick-up with the piezoelectric transducer. This pulse serves to determine trace concentrations of various impurities in the sample. The optimization of layered prism cell parameters is proposed. Figures of merit of optoacoustic determination of lipopolysaccharides in the liquid small-volume sample with the use of the optimized layered prism cell are evaluated as an example.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 1; 10-14
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ultrasonic Non-Invasive Method for Relative Changes Measurements of Intima-Media Thickness in Artery Walls
    Autorzy:
    Trawiński, Z.
    Wójcik, J.
    Powałowski, T.
    Gutkiewicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1811556.pdf
    Data publikacji:
    2008-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    43.25.Ed
    43.25.Zx
    43.35.Yb
    43.35.Bf
    43.38.Fx
    43.58.Ta
    43.60.Tj
    Opis:
    The aim of this paper is to present the new method for relative changes measurements of intima-media thickness in the common carotid artery wall. The numerical solver was created for calculation of the fields of ultrasonic beams and scattered fields under different boundary conditions and different angles of penetration of ultrasonic beams with respect to the position of the arterial wall. The cylindrical model of the artery was changing the radius and thickness of the wall under cyclic variation of blood pressure. The presented method was verified on a pipe made of latex. The paper describes also the initial results of examinations of the intima-media thickness. The good agreement for the angle dependence and the perpendicular ultrasonic beam displacement from the longitudinal axis of the artery segment between the numerical calculation and experimental results was obtained for different artery diameters.
    Źródło:
    Acta Physica Polonica A; 2008, 114, 6A; A-243-A-247
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

      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