Publikační činnost pracovníků VUT v Brně: Poslední příspěvky
Zobrazují se záznamy 21-40 z 959
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Evaluation of the Surfactant Leaching from Alkali-Activated Slag-Based Composites Using Surface-Tension Measurements
(Institute of Metals and Technology, 2019-02-01)This work tries to evaluatethe amount of surfactant leached from the AAS-based mortars using a very simple surface-tension (ST) measuring technique.Mortars based on AAS with and without2%ofPEGvarying in molecular weight ... -
Atomic force microscopy analysis of nanoparticles in non-ideal conditions
(Springer Open, 2011-08-30)Nanoparticles are often measured using atomic force microscopy or other scanning probe microscopy methods. For isolated nanoparticles on flat substrates, this is a relatively easy task. However, in real situations, we often ... -
On a delay population model with quadratic nonlinearity
(Springer Nature, 2012-12-28)In this paper, a nonlinear delay differential equation with quadratic nonlinearity is investigated. It is proved that the positive equilibrium is globally asymptotically stable without any further limitations on parameters ... -
Explicit general solution of planar linear discrete systems with constant coefficients and weak delays
(Springer Nature, 2013-03-06)In this paper, planar linear discrete systems with constant coefficients and two delays $$ x(k+1)=Ax(k)+Bx(k-m)+Cx(k-n) $$ are considered where $k\in\bZ_0^{\infty}:=\{0,1,\dots,\infty\}$, $x\colon \bZ_0^{\infty}\to\mathbb{R}^2$, ... -
Discrete matrix delayed exponential for two delays and its property
(Springer Nature, 2013-06-13)In recent papers, a discrete matrix delayed exponential for a single delay was defined and its main property connected with the solution of linear discrete systems with a single delay was proved. In the present paper, a ... -
Modeling of applied problems by stochastic systems and their analysis using the moment equations
(Springer Nature, 2013-10-09)The paper deals with systems of linear differential equations with coefficients depending on the Markov process. Equations for particular density and the moment equations for given systems are derived and used in the ... -
An efficient new perturbative Laplace method for space-time fractional telegraph equations
(Springer Nature, 2012-11-27)In this paper, we propose a new technique for solving space-time fractional telegraph equations. This method isbased on perturbation theory and the Laplace transformation. -
Solving certain classes of Lane-Emden type equations using differential transformation method
(Springer Nature, 2012-10-05)In this paper, differential transformation method (DTM) is applied to solve singular initial problems represented by certain classes of Lane-Emden type equations. Some new differential tranformation formulas for certain ... -
Stabilization of Lure-type Nonlinear Control Systems by Lyapunov-Krasovskii Functionals
(Springer Nature, 2012-10-24)The paper deals with the stabilization problem of Lure-type nonlinear indirect control systems with time-delay argument. The sufficient conditions for absolute stability of the control system are established in the form ... -
Bounded solutions of delay dynamic equations on time scales
(Springer Nature, 2012-10-24)In this paper we discuss the asymptotic behavior of solutions of a delay dynamic equation $$y^{\Delta}(t)=f(t,y(\tau(t)))$$ where $f\colon\mathbb{T}\times\mathbb{R}\rightarrow\mathbb{R}$, \tau\colon\T\rightarrow \T$ is a ... -
Real-Time Guitar Preamp Simulation Using Modified Blockwise Method and Approximations
(Springer Nature, 2011-04-07)The designing of algorithms for real-time digital simulation of analog effects and amplifiers brings two contradictory requirements: accuracy versus computational efficiency. In this paper, the simulation of a typical ... -
Goertzel Algorithm Generalized to Non-integer Multiples of Fundamental Frequency
(SpringerOpen, 2012-03-22)The paper deals with the Goertzel algorithm, used to establish the modulus and phase of harmonic components of a signal. The advantages of the Goertzel approach over the DFT and the FFT in cases of a few harmonics of ... -
The spatial distribution of largest firms in the Czech Republic and its managerial implications
(Jan Evangelista Purkyně University in Ústí nad Labem, 2018-12-31)Corporate headquarters, which occupy the top of enterprise organizational hierarchies became the subject of an increased interest in last three decades. Until now, posttransformation economies suffer from a distinct cognitive ... -
Stability and asymptotic properties of a linear fractional difference equation
(Springer Nature, 2012-07-23)This paper discusses qualitative properties of the two-term linear fractional difference equation with respect to its stability and asymptotics. Some consequences to the theory of Volterra difference equations are presented ... -
Determination of car seat contact area for personalised thermal sensation modelling
(PLOS, 2018-12-11)A lot of daily activities are conducted in a sedentary posture. This includes a thermal interaction between the human and the seat that has implications on thermal perception and comfort. These interactions are investigated ... -
S-SPADE Done Right: Detailed Study of the Sparse Audio Declipper Algorithms
(2018-09-26)This technical report shows and discusses in detail how Sparse Audio Declipper (SPADE) algorithms are (and should be) derived from the signal model using the ADMM approach. The analysis version (A-SPADE) of Kitic et. al. ... -
Research Update: Focused ion beam direct writing of magnetic patterns with controlled structural and magnetic properties
(AIP Publishing, 2018-06-01)Focused ion beam irradiation of metastable Fe78Ni22 thin films grown on Cu(100) substrates is used to create ferromagnetic, body-centered cubic patterns embedded into paramagnetic, face-centered-cubic surrounding. The ... -
Orthogonality is superiority in piecewise-polynomial signal segmentation and denoising
(Springer Open, 2019-01-25)Segmentation and denoising of signals often rely on the polynomial model which assumes that every segment is a polynomial of a certain degree and that the segments are modeled independently of each other. Segment borders ... -
Newton-Kantorovich convergence theorem of a new modified Halleys method family in a Banach space
(Springer, 2013-11-12)A Newton-Kantorovich convergence theorem of a new modified Halleys method family is established in a Banach space to solve nonlinear operator equations -
Stabilization of company’s income modeled by a system of discrete stochastic equations
(Springer Nature, 2014-11-15)The paper deals with a system of difference equations where the coefficients depend on Markov chains. The functional equations for a particular density and the moment equations for the system are derived and used in the ...