Temat: temperature changes - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Spatial variation of air temperature in the Arctic in 1951-1990
Autorzy:: Przybylak, Rajmund
Powiązania:: https://bibliotekanauki.pl/articles/2052494.pdf
Data publikacji:: 1997
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Arctic
air temperature changes
spatial relations
correlation analysis
Źródło:: Polish Polar Research; 1997, 18, 1; 41-63
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Ultrasonic Measurement of Temperature Rise in Breast Cyst and in Neighbouring Tissues as a Method of Tissue Differentiation
Autorzy:: Gambin, B.
Byra, M.
Kruglenko, E.
Doubrovina, O.
Nowicki, A.
Powiązania:: https://bibliotekanauki.pl/articles/177465.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: medical ultrasound
temperature changes in vivo
breast tissue
ultrasonic temperature measurement
Opis:: Texture of ultrasound images contain information about the properties of examined tissues. The analysis of statistical properties of backscattered ultrasonic echoes has been recently successfully applied to differentiate healthy breast tissue from the benign and malignant lesions. We propose a novel procedure of tissue characterization based on acquiring backscattered echoes from the heated breast. We have proved that the temperature increase inside the breast modifies the intensity, spectrum of the backscattered signals and the probability density function of envelope samples. We discuss the differences in probability density functions in two types of tissue regions, e.g. cysts and the surrounding glandular tissue regions. Independently, Pennes bioheat equation in heterogeneous breast tissue was used to describe the heating process. We applied the finite element method to solve this equation. Results have been compared with the ultrasonic predictions of the temperature distribution. The results confirm the possibility of distinguishing the differences in thermal and acoustical properties of breast cyst and surrounding glandular tissues.
Źródło:: Archives of Acoustics; 2016, 41, 4; 791-798
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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