Results 41 to 50 of about 369,812 (312)

Frequency Response Based Curve Fitting Approximation of Fractional–Order PID Controllers

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2019
Fractional-order PID (FOPID) controllers have been used extensively in many control applications to achieve robust control performance. To implement these controllers, curve fitting approximation techniques are widely employed to obtain integer-order ...
Bingi Kishore   +4 more
doaj   +1 more source

Small-angle scattering and quasiclassical approximation beyond leading order

open access: yesPhysics Letters B, 2015
In the present paper we examine the accuracy of the quasiclassical approach on the example of small-angle electron elastic scattering. Using the quasiclassical approach, we derive the differential cross section and the Sherman function for arbitrary ...
P.A. Krachkov, R.N. Lee, A.I. Milstein
doaj   +1 more source

Link Travel Time Estimation in Double-Queue-Based Traffic Models

open access: yesPromet (Zagreb), 2021
Double queue concept has gained its popularity in dynamic user equilibrium (DUE) modeling because it can properly model real traffic dynamics. While directly solving such double-queue-based DUE problems is extremely challenging, an approximation scheme ...
Xia Yang   +3 more
doaj   +1 more source

Approximations by OBDDs and the Variable Ordering Problem [PDF]

open access: yes, 1999
Ordered binary decision diagrams (OBDDs) and their variants are motivated by the need to represent Boolean functions in applications. Research concerning these applications leads also to problems and results interesting from theoretical point of view. In this paper, methods from communication complexity and information theory are combined to prove that
Krause, Matthias   +2 more
openaire   +5 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

On a subclass of C1 functions for which the Lagrange interpolation yields the Jackson order of approximation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
We continue the investigation initiated by Mastroianni and Szabados on question whether Jackson's order of approximation can be attained by Lagrange interpolation for a wide class of functions.
Xin Li
doaj   +1 more source

Approximation Solution for Fuzzy Fractional-Order Partial Differential Equations

open access: yesFractal and Fractional, 2022
In this article, the authors study the comparison of the generalization differential transform method (DTM) and fuzzy variational iteration method (VIM) applied to determining the approximate analytic solutions of fuzzy fractional KdV, K(2,2) and mKdV ...
Mawia Osman   +4 more
doaj   +1 more source

Coordinate Order of Approximation by Functional-Based Approximation Operators

open access: yesJournal of Approximation Theory, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Burchard, H.G., Lei, J.J.
openaire   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS 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

The approximation of Laplace-Stieltjes transforms with finite order

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we study the irregular growth of an entire function defined by the Laplace-Stieltjes transform of finite order convergent in the whole complex plane and obtain some results about λ-lower type.
Hong Yan Xu, San Yan Liu
doaj   +1 more source

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