Results 51 to 60 of about 10,658,834 (304)
Stability of Fractional Order Systems [PDF]
Mathematical Problems in Engineering, 2013 The theory and applications of fractional calculus (FC) had a considerable progress during the last years. Dynamical systems and control are one of the most active areas, and several authors focused on the stability of fractional order systems. Nevertheless, due to the multitude of efforts in a short period of time, contributions are scattered along ...
Rivero, Margarita +3 more
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Modeling and Control Research of Fractional-Order Cascaded H-Bridge Multilevel STATCOM
Fractal and FractionalThis paper introduces fractional-order capacitors and fractional-order inductors into the conventional integer-order cascaded H-bridge multilevel static compensator (ICHM-STATCOM), thereby constructing the main circuit of the fractional-order cascaded H ...
Junhua Xu +5 more
doaj +1 more source
CFOA-Based Fractional Order PIλDδ Controller [PDF]
Electronics, 2017 Conventional Current Feedback Operational Amplifier (CFOA) is not current controllable or not electronically controllable. It is thus of interest to add a current mirror into the CFOA in order to make it current controllable.
Tada Comedang, Pattana Intan
doaj +1 more source
A Review of Fractional Order Entropies [PDF]
Entropy, 2020 Fractional calculus (FC) is the area of calculus that generalizes the operations of differentiation and integration. FC operators are non-local and capture the history of dynamical effects present in many natural and artificial phenomena. Entropy is a measure of uncertainty, diversity and randomness often adopted for characterizing complex dynamical ...
António M. Lopes 0001 +1 more
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FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Electronically Adjustable Emulator of the Fractional-Order Capacitor
Elektronika ir Elektrotechnika, 2019 This paper presents a design of the controllable emulator of the FOC (Fractional-Order Capacitor) and its application. The circuit is based on 5th-order RC topology (type Foster I), where the passive elements in the topology are replaced by ...
Jan Dvorak +4 more
doaj +1 more source
Fractional-Order Inductor: Design, Simulation, and Implementation
IEEE Access, 2021 Fractional calculus has tremendous potential in modeling the evolution of complex systems including those with memory. Indeed, fractional-order models are more accurate in approximating non-locally distributed dynamics with short- or long-term memory ...
Li Zhang +4 more
doaj +1 more source
Fractional order mathematical modeling of COVID-19 transmission
Chaos, Solitons & Fractals, 2020 In this article, the mathematical model with different compartments for the transmission dynamics of coronavirus-19 disease (COVID-19) is presented under the fractional-order derivative.
Shabir Ahmad +5 more
semanticscholar +1 more source
SymmetryThis paper continues the subject of symmetry breaking of fractional-order maps, previously addressed by one of the authors. Several known planar classes of curves of integer order are considered and transformed into their fractional order. Several known planar classes of curves of integer order are considered and transformed into their fractional order.
Marius-F. Danca +1 more
openaire +1 more source
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source