... radii oflinear discrete- time systems and symplectic pencils, Inter J Nonlinear and Robust Control, (1991) 79–97 11 D Hinrichsen and N K Son, Stability radii of positive discrete- time systems ... solution In view of the above result, it is of interest to consider conditions of robust stability of a polytope of matrices It is well known that, in general, the stability of all vertex matrices ... Vol of Progress in System and Control Theory, Birkh¨user, Basel, 1990, 119-162 a D Hinrichsen and A J Pritchard, On the Robustness of Stable Discrete- TimeLinear Systems, In: New Trends in Systems...
... solutions of a discrete- time diffusive system One question arises naturally Does the discrete analog ofsystem (1.1) have a positive periodic solution? The purpose of this paper is to answer this ... prescribed common period of the parameters in (1.2) It is well known that, compared to the continuous -time systems, the discrete- time ones are more difficult to deal with To the best of our knowledge, ... delayed ratio-dependent predator-prey system, J Math Anal Appl 262 (2001), no 1, 179–190 , Periodic solutions of a discretetime nonautonomous ratio-dependent predator-prey system, Math Comput Modelling...
... number of vectors in Rp to a finite set of vectors in Rp There is an inherent compression of the data vectors This finite set of vectors in Rp is encoded into another finite set of vectors in a vector ... encoding maps the finite set ofdiscrete time, continuous amplitude signals into a finite set ofdiscrete time, discrete amplitude signals A signal x(n) is quantized one block at a time in that p (almost ... the focus is on discretetime signals Quantization is the process of approximating any discrete time, continuous amplitude signal into one of a finite set ofdiscrete time, continuous amplitude...
... exponential stabilizability of discrete- time systems with time- delayed states Finally, as an application, we consider the global stabilization of the nonlinear control systems Preliminaries In this ... linear elastodynamic systems,” SIAM Journal on Control and Optimization, vol 37, no 2, pp 521–542, 1999 10 E K Boukas, “State feedback stabilization of nonlinear discrete- time systems with time- varying ... for discrete- time systems,” International Journal of Robust and Nonlinear Control, vol 16, no 4, pp 191–214, 2006 20 I Karafyllis, “Non-uniform robust global asymptotic stability for discrete- time...
... a delay difference systemto a delay-free linearsystemof higher dimension, thus obtaining explicit stability conditions for the solutions Preliminaries Let N denote the set of nonnegative integers ... 3.3, it follows that the zero solution of 3.39 is absolutely stable For instance, if the linearsystem with constant coefficients associated to the nonlinear system with variable coefficients 3.39 ... solution of 4.1 - 2.3 is absolutely stable Remark 4.2 I want to point out that this approach is just of interest for systems with “slowly changing” matrices The purpose of this section is to apply...
... Monotonicity of nonlinear nonnegative dynamical systems In this section, we extend the results of Section to nonlinear nonnegative dynamical systems Specifically, we consider discrete- time, nonlinear ... QG(x) ≤≤ 0, x ∈ R+ Then ˆ the discrete- time, nonlinear nonnegative dynamical system Ᏻ is partially monotonic with ˆ respect to x Proof The proof is similar to the proof of Theorem 3.2 with Proposition ... Monotonicity oflinear nonnegative dynamical systems In this section, we present our main results for discrete- time, linear nonnegative dynamical systems Specifically, we consider monotonicity of...
... was to complete the stand characteristics of selected geobiocoenoses with more zoocoenological data and to review the influence of AZ on the occurrence of weevils, therefore to add knowledge of ... it is impossible to define the outline of the occurrence of the found species Many faunal researches suggest the possibility of the occurrence of most of the species, however, often in completely ... indicator of AZ of a habitat Characteristics built-up by more dynamic zoocoenoses can contribute to the specification of information about the state or the direction of restoration progress of coenoses...
... assumed to be 42 days to permit analysis of variance [24] 2.5 Data analyses 2.5.1 Experiment Applied GA3 The data were analysed according to a full factorial ANOVA design to test for the effects of ... seeds of both species to allow the TMC seeds to respond to treatment However, priming of the TMC seeds of several conifer species (30−35% MC) increased percentage germination and speed of germination ... used to shorten the chilling period However, the response varied greatly with seed MC A longer period of chilling is needed to release dormancy at lower seed MC [23], so the better response of...
... median time for an objective responseto imatinib is four months, but maximal response is reported to take six months or longer [10] Response is defined as absence of progression at the timeof first ... gastrectomy but also informed that a total gastrectomy and even a multi-visceral resection may be needed At operation, he was found to have a softball-sized mass attached by a stalk to his stomach ... poorly to radiation and cytotoxic chemotherapy, making surgical resection the only effective treatment Imatinib, a receptor tyrosine kinase inhibitor, was first used in the treatment of chronic...
... age range of 13 to 86 years, with a female predominance (the female to Figure rence of3 pulmonary artery intimal sarcoma A computed tomography scan of the chest shows the recurA computed tomography ... computed tomography scan of the chest shows the main A computed tomography scan of the chest shows the main pulmonary artery was obstructed circumferentially During surgery, a local soft mass ... growth with obstruction of the tract and seeding of emboli [1,2] Intimal sarcoma is a rare tumor, and the incidence of PA intimal sarcoma is almost twice that of sarcomas of aortic origin It mainly...
... expression profiling in the lung tissue of cynomolgus monkeys in responseto repeated exposure to welding fumes Arch Toxicol 2009 14 Antonini JM, Lawryk NJ, Murthy GG, Brain JD: Effect of welding ... weeks post-exposure to GMA-SS: IPA analysis In one of the top two A/J networks, immune response, cell morphology, hematological system development and function, primarily consisted of upregulated ... LCN2 and MMP12 (Figure 6) Of note, the real time RT-PCR fold induction values were higher compared to microarray adding further to the utilization of a 1.3 fold cutoff Conclusions Previously,...
... specific response We used the CDE diet protocol to induce an oval cell response and proved the hypothesis that M-Pk is convenient to scale this oval cell reaction To examine the effectiveness of our ... sinusoidal cells due to CDE diet Therefore, it was necessary to analyse the expression levels of known marker proteins of sinusoidal liver cells to prove which type of cells enriches due to CDE conditions ... Comparative Hepatology 2010, 9:8 http://www.comparative-hepatology.com/content/9/1/8 Page of 11 Figure CDE diet induces both an oval cell response and a responseof sinusoidal liver cells Immunohistochemical...
... Degradation of Mks1 In responseto mitochondrial dysfunction, mitochondria influence nuclear gene expression in order to promote adaptation to decreased respiratory capacity Decreased respiratory capacity ... in respiratory metabolism in grr1Δ may partially be due to the inability to degrade the negative regulator of the retrograde response, Mks1 Finally, at least some of the defects in cytokinesis ... role for Grr1 in the processes of budding and cytokinesis Upon the transition from G1 to S phase of the cell cycle yeast cells begin to polarize the actin cytoskeleton to produce the daughter cell...
... have been applied to different kinds of complex continuous -time nonlinear systems However, for discrete- time nonlinear systems, especially for complex discrete- time nonlinear systems, those available ... order discrete- time nonlinear system, and then the control scheme was generalized to high order discrete- time nonlinear system Recently, 10 1.1 Adaptive Neural Network Control of Nonlinear Systems ... Neural Network Control of Nonlinear Systems discrete- time models and continuous -time models In this section, the development in adaptive NN control of discrete- time nonlinear systems is briefly reviewed...
... The aim of this article was to give necessary and sufficient conditions for existence and uniqueness of solutions for generalized linear discrete- time boundary value problems of a class oflinear ... matrix Q p has column vectors the p linear independent eigenvectors of the finite generalized eigenvalues of sF-G (see [1] for an algorithm of the computation of Qp) Proof Let Q = [QpQq], where ... polynomials Linear Algebra Appl 385, 117–130 (2004) doi:10.1186/1687-1847-2011-51 Cite this article as: Dassios: On a boundary value problem of a class of generalized linear discrete- time systems...
... initial time difference Problems Nonlinear Anal Eng Syst 1, 50–66 (2000) 19 Yakar, C: Strict Stability Criteria of Perturbed Systems with respect to Unperturbed Systems in term of Initial Time Difference ... proof Theorem 3.1.2: Let the assumption of Theorem 3.1.1 holds Then the quasi-equiasymptotically stability properties of the null solution of the fractional order differential system with Caputo’s ... initial time difference quasi-equi-asymptotically stability properties of y(t, τ0, y0) any solution of fractional order differential system with Caputo’s derivative (2.2.3) with respect to ˜ x(t,...
... coefficient of the prey at time n, respectively d n , a22 n denote the death rate and density-dependent coefficient of the predator at time n, respectively a12 n denotes the capturing rate of the predator; ... holds This completes the proof of Theorem 3.2 In order to obtain the permanence of the component y n ofsystem 1.3 , we next consider the following single-specie system with feedback control: ... functional responseof predators,” Theoretical Population Biology, vol 56, pp 65–75, 1999 J Cui and Y Takeuchi, “Permanence, extinction and periodic solution of predator-prey system with Beddington-DeAngelis...
... 96 ecto M-7-Z 100 100 100 ecto M-7-P 62 64 149 ecto M-12-Z 100 110 100 ecto M-12-P 40 112 121 ecto M-23-Z 100 100 100 ecto M-23-P 58 125 134 ecto M-25-Z 100 100 100 ecto M-25-P 57 137 122 ecto ... analyzed causes of the decline of spruce stands in five selected regions of the Czech Republic – from FAVZ to FAVZ in nutrient-rich and acidic sites With respect to the size of the paper and to the fact ... depth of the whole root system) As the result of disqualification of anchors (due to their rots) the original rooting depth diminished in injured trees (see Rooting depth of the operating root system) ...
... version of narrative exposure therapy (NET) [31] A time period of six months allowed the caretakers to get used to the new strategies and the children to profit from the changes, but also to recover ... the frequency of symptoms reported by the child The occurrence of each DSM-IV symptom within the last month is scored on a scale ranging from none of the timeto most of the time Thus, an overall ... used to screen for exposure to traumatic events and for symptoms of PTSD This instrument was originally constructed as a self-report and assesses the severity of symptoms based on the frequency of...