Autor: Savenko, O. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fractional model of the electrochemical capacitor relaxation phenomenon
Autorzy:: Martynyuk, V.
Ortigueira, M. D.
Fedula, M.
Savenko, O.
Powiązania:: https://bibliotekanauki.pl/articles/200913.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: electrochemical capacitor transfer function
impulse response
potential relaxation
electrochemical impedance spectroscopy
odpowiedź impulsowa
elektrochemiczna spektroskopia impedancyjna
relaksacja
kondensatory elektrochemiczne
Opis:: The fractional model of the electrochemical capacitor (EC) relaxation phenomenon is presented herein. The EC relaxation phenomenon occurs when EC impedance measurements are performed after charge or discharge current interruption during potential relaxation. The EC fractional model is obtained based on the fractional order transfer function, obtained in turn by means of fitting the EC impedance data. The inverse Laplace transform is used to obtain the EC impulse response. Meanwhile, the EC charge and discharge simulations are performed using the EC impulse response.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 4; 441-448
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Mathematical approach for estimating the stability of geotextile-reinforced embankments during an earthquake
Autorzy:: Dahoua, L.
Usychenko, O.
Savenko, V. Y.
Hadji, R.
Powiązania:: https://bibliotekanauki.pl/articles/88877.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:: Bishop's method
geosynthetic
slope stability
rupture criterion
safety factor
Opis:: The Bishop’s method gives a safety factor of circular slip surfaces in excellent agreement with those given by the reliable bi-dimensional slices analysis methods such as Spencer, Janbu or Morgenstern and Price methods. However, several significant disturbing factors are not considered by the simplified or rigorous Bishop’s method on which depends a lot of commercial computer programs. This paper discusses a mathematical approach to take into account changeable values of cohesion and friction angle in the Mohr–Coulomb criterion in order to consider the reduction of intrinsic characteristics; adapt a new parameter (F_s) to take into account the behavior under seismic solicitations, introduce a force (r) to take into account the of infiltrated part of water. Finally stabilizing forces generated by the geotextile layers (Geo) are statically engaged in Boshop’s polygon of forces. The result shows that the seismic factor gives the main disturbing force to the slope equilibrium; whereas the geotextile action gives the main stabilizing force. In other words, this modified Bishop’s method is proposed to calculate cases for which the original method could not be used.
Źródło:: Mining Science; 2018, 25; 207-217
2300-9586
2353-5423
Pojawia się w:: Mining Science
Dostawca treści:: Biblioteka Nauki

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