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Wyszukujesz frazę "Lisin, A." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Natural water fluorescence characteristics based on lidar investigations of a surface water layer polluted by an oil film; the Baltic cruise - Mai 2000
Autorzy:
Drozdowska, V.
Babichenko, S.
Lisin, A.
Powiązania:
https://bibliotekanauki.pl/articles/48468.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
oil pollution
surface water
fluorescence
natural sea water
Baltic Sea
lidar investigation
component
Opis:
Several sea and laboratory experiments have been carried out to detect and determine the fluorescence characteristics of seawater and its natural fluorescing components and to analyse the influence of oil in the surface water layer on the lidar-induced return signal. The aim of the laboratory investigations was to create a database of different natural water types and of water polluted with Petrobaltic oil. During the r/v ‘Oceania’ cruise in the southern Baltic Sea two lidar methods were applied simultaneously to detect and analyse the influence of the fluorescence emission of oil on the fluorescence spectrum of seawater. Detection of oil pollution can be used to correct the fluorescent factors of fluorescing components on the basis of natural seawater fluorescence spectra.
Źródło:
Oceanologia; 2002, 44, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental study and modelling the evolution of viscoelastic hysteresis loop at different frequencies in myocardial tissue
Autorzy:
Smoluk, A.
Smoluk, L.
Lisin, R.
Protsenko, Y.
Powiązania:
https://bibliotekanauki.pl/articles/306728.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
histereza
wiskoelastyczność
mięsień sercowy
zależność częstotliwościowa
hysteresis
viscoelastic properties
frequency dependence
myocardium
modelling
Opis:
Our work involved experimental study of the influence of actomyosin complexes and the main structural components of the myocardial tissue – connective tissue collagen framework and cardiomyocytes – on the characteristics of viscoelastic hysteresis at different frequencies. In this paper a new method was introduced for the analysis of the viscoelastic characteristics of the force hysteresis in the isolated myocardial preparation for the assessment of mechanical energy expenditure in the tension-compression cycle. We established that basic myocardial structures have an impact on the to the characteristics of the viscoelastic hysteresis in many ways. It was shown that in rat’s myocardium cardiomyocytes one main factor that define the stiffness and viscosity of the myocardium in the physiological range of deformations, while binding of calcium ions with EGTA and calcium removal of sarcoplasmic reticulum with caffeine reduces viscoelasticity by ~30% and collagen framework is responsible for about 10% of viscoelasticity. It was revealed that in the physiological range of the hysteresis frequencies (3 to 7 Hz) expenditure of mechanical energy per unit of time increases linearly with increasing frequency. We proposed the structural and functional model that adequately describes the characteristics of the viscoelastic hysteresis in myocardial preparation in the range of strains and frequencies being under study.
Źródło:
Acta of Bioengineering and Biomechanics; 2017, 19, 3; 11-17
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lengthwise finning surface as the method of influence on the flow separation in diffusers
Autorzy:
Zaryankin, A.
Rogalev, A.
Lisin, E.
Khudyakova, V.
Powiązania:
https://bibliotekanauki.pl/articles/122686.pdf
Data publikacji:
2017
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
diffuser
longitudinal pressure gradient
friction tension
velocity
finned surface
boundary layer
inertial force
flow separation
dyfuzor
warstwa graniczna
oddzielenie przepływu
siła tarcia
wzorzec przepływu
Opis:
The paper deals with the analysis of power factors acting within the boundary layer for different types of flow: convergent, gradientless and diffuser. Based on the considered formation mechanism of boundary layer separation, a hypothesis about the possible influence on structure and character of a separated flow by changing the gradient of the tangential stresses in the boundary layer was proposed. This impact is proposed to realize by means of the longitudinal finning of diffuser. Verification of the concept is performed on the basis of numerical flow investigation and available experimental data.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 1; 127-138
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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