Temat: 43.35.+d - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Ultrasonic Wave Propagation Velocity in Nonconducting Liquids in an External DC Electric Field
Autorzy:: Łabowski, M.
Skumiel, A.
Hornowski, T.
Powiązania:: https://bibliotekanauki.pl/articles/1887541.pdf
Data publikacji:: 1991-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.35.+d
Opis:: A theoretical analysis of variations in the propagation velocity of ultrasonic waves in liquid dielectrics in an external DC electric field was performed. Measurements of these variations in transformer oil in dependence on the field strength and temperature were made applying the phase method. To express the experimental results in graphical form numerical procedure of interpolation in Lagrange polynomials was used. The experimentally obtained variations in the velocity are compared with those predicted theoretically by the formulae derived.
Źródło:: Acta Physica Polonica A; 1991, 79, 5; 683-693
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Ultrasonic Absorption Coefficient and Propagation Velocity in Critical Benzonitrile-Isooctane Mixture
Autorzy:: Hornowski, T.
Powiązania:: https://bibliotekanauki.pl/articles/1924274.pdf
Data publikacji:: 1992-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.35.+d
Opis:: Measurements of the absorption coefficient and propagation velocity of ultrasonic waves in critical benzonitrile and isooctane mixture are reported for the frequency range of 5-25 MHz and temperatures ΔT = T - T$\text{}_{c}$ from 0.15 to 20 K. The analysis of the experimental results is based on dynamic scaling theory leading to good agreement with the theoretical predictions, especially in the reduced frequency range 1 < ω* < 100. The adiabatic coupling constant g is calculated and compared to the experimental value.
Źródło:: Acta Physica Polonica A; 1992, 82, 6; 961-966
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Absorption and Dispersion of Ultrasonic Waves in n-Amylic Alcohol-Nitromethane Critical Mixture
Autorzy:: Hornowski, T.
Łabowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1887536.pdf
Data publikacji:: 1991-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.35.+d
Opis:: Measurement of absorption and propagation velocity of ultrasonic waves as well as shear viscosity in n-amylic alcohol-nitromethane critical mixture are reported. Acoustic measurements were performed in the frequency range from 5 to 25 MHz and temperatures ΔT = T - T$\text{}_{c}$ from 0.1 to 12.3 K. An analysis of the results was carried out on the basis of a modified version of mode-coupling theory [10], which led to good agreement with experiment. The correlation length ξ$\text{}_{0}$ = 0.94 Ǻ is in agreement with the value obtained from optical measurements.
Źródło:: Acta Physica Polonica A; 1991, 79, 5; 671-682
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Dependence of Ultrasonic and Magnetic Hyperthermia on the Concentration of Magnetic Nanoparticles
Autorzy:: Kaczmarek, K.
Hornowski, T.
Bielas, R.
Żak, D.
Timko, M.
Józefczak, A.
Powiązania:: https://bibliotekanauki.pl/articles/1030383.pdf
Data publikacji:: 2018-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.75.-c
43.35.Cg
43.35.Wa
87.85.-d
Opis:: Hyperthermia treatment is the heating of tumor tissue up to temperatures between 41°C and 45°C, which trigger several physiological reactions in the body. Hyperthermia within tissue can be applied through various mechanisms. One of them is magnetic hyperthermia which uses superparamagnetic iron oxide nanoparticles (SPIONs) heated by an externally applied magnetic field. SPIONs can also be used as sonosensitizers in ultrasound hyperthermia increasing acoustic wave attenuation. The impact of SPION concentration on thermal effect during ultrasonic and magnetic hyperthermia was investigated in agar-gel phantom with added magnetite nanoparticles. The presence of nanoparticles in the tissue-mimicking phantom increases the thermal losses of ultrasound energy and temperature of the phantom.
Źródło:: Acta Physica Polonica A; 2018, 133, 3; 716-718
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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