Wszystkie pola: supercoil - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Singular fractional linear systems and electrical circuits
Autorzy:: Kaczorek, T.
Powiązania:: https://bibliotekanauki.pl/articles/907789.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: system ułamkowy
układ liniowy
superkondensator
singular
fractional system
linear circuit
regular pencil
supercapacitor
supercoil
Opis:: A new class of singular fractional linear systems and electrical circuits is introduced. Using the Caputo definition of the fractional derivative, the Weierstrass regular pencil decomposition and the Laplace transformation, the solution to the state equation of singular fractional linear systems is derived. It is shown that every electrical circuit is a singular fractional system if it contains at least one mesh consisting of branches only with an ideal supercapacitor and voltage sources or at least one node with branches with supercoils.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2011, 21, 2; 379-384
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Singular Fractional Continuous-Time and Discrete-Time Linear Systems
Autorzy:: Kaczorek, T.
Powiązania:: https://bibliotekanauki.pl/articles/386937.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: ułamkowy
pojedynczy
układ liniowy
pęk regularny
rozwiązanie
superkondensator
fractional
singular
linear circuit
regular pencil
solution
supercondensator
supercoil
Opis:: New classes of singular fractional continuous-time and discrete-time linear systems are introduced. Electrical circuits are example of singular fractional continuous-time systems. Using the Caputo definition of the fractional derivative, the Weierstrass regular pencil decomposition and Laplace transformation the solution to the state equation of singular fractional linear systems is derived. It is shown that every electrical circuit is a singular fractional systems if it contains at least one mesh consisting of branches with only ideal supercondensators and voltage sources or at least one node with branches with supercoils. Using the Weierstrass regular pencil decomposition the solution to the state equation of singular fractional discrete-time linear systems is derived. The considerations are illustrated by numerical examples.
Źródło:: Acta Mechanica et Automatica; 2013, 7, 1; 26-33
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: 1H-Benzimidazole derivatives as mammalian DNA topoisomerase I inhibitors
Autorzy:: Alpan, A
Gunes, H
Topcu, Zeki
Powiązania:: https://bibliotekanauki.pl/articles/1040939.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: 1H-benzimidazole derivatives
type I DNA topoisomerase
plasmid supercoil relaxation assays
Opis:: Benzimidazole is one of the most important heterocyclic groups manifesting various biological properties, such as antibacterial, antifungal, antimicrobial, antiprotozoal and antihelmintic activities. Several benzimidazole derivatives are also active as inhibitors of type I DNA topoisomerases. In this study, three 1H-benzimidazole derivatives with different electronic characteristics at position 5-, namely 5-chloro-4-(1H-benzimidazole-2-yl)phenol (Cpd I), 5-methyl-4-(1H-benzimidazole-2-yl)phenol (Cpd II) and 4-(1H-benzimidazole-2-yl)phenol (Cpd III), were synthesized and evaluated for their effects on mammalian type I DNA topoisomerase activity using quantitative in vitro plasmid supercoil relaxation assays. For the structure elucidation of the compounds, melting points, UV, IR, 1H NMR, 13C NMR, mass spectral data and elemental analyses were interpreted. Among the compounds, 5-methyl-4-(1H-benzimidazole-2-yl)phenol (Cpd II) manifested relatively potent topoisomerase I inhibition.
Źródło:: Acta Biochimica Polonica; 2007, 54, 3; 561-565
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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