A free, open and searchable database of Legal Entity Identifier (LEI) information. Largest H-eigenvalue of uniform s-hypertrees · Yuan Hou, An Chang, Lei Zhang Pages Download PDF (KB). Research Article. state lees r *z 1 to thh,a cat, Y A. shy r sir wet t, Is fel U’A’l AVM VKs four or f.. ago ktl Ilan ‘, 1 Lei Z)!’ 9Ci Nw1 11jt e ai1Q iur Mw r e l o trlrn? 1 I t vais 0t9 t.
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Old and nonstandard browsers can put your security at risk, are slow and don’t leei with newer features. The authors would like to thank anonymous referees for their constructive comments which improve the readability of the paper.
Scientific Reports [30 Jul8 1: See our other membership options. The classical endemic model is the following SIR model with vital dynamics:. Energy Innovation Software Co. A free boundary problem for a ratio-dependent diffusion predator-prey system. Recently, Yan et al. Many authors have investigated the 14164 epidemic models. Author information Article notes Copyright and License information Disclaimer.
Guckenheimer and Holmes [ 2 ] examined an SIR epidemic model with a non-monotonic incidence rate, and they also analyzed the dynamical behavior of the model and derived the stability conditions for the disease-free and the endemic equilibrium.
Start your 7-day Free Trial Get Access to this image and everything else on Fold3 Access to over millions of documents. Guckenheimer J, Holmes P. For this model, the basic reproduction number is given by. LZ carried out the transformation process, designed the solution methodology and drafted the manuscript.
In this work, the following work is achieved: Characterizations of common fixed points of one-parameter nonexpansive semigroups.
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Yes, Qrirt s last es,r. Well-posedness and dynamics of the stochastic fractional magneto-hydrodynamic equations. In addition, a precise description of secondary fractures in SRV regions is of critical importance for production analysis oei prediction. Already a Llei member? Finally, production performance was analyzed for Marcellus and Fuling shale gas wells, in the U. By a simple calculation, Conditions A in Theorem 2 can be written in the following form:.
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Acknowledgements The authors would like to thank anonymous referees for their constructive comments which improve the readability of the paper. Please review our privacy policy.
Bifurcations and dynamic complexity in simple ecological models.
It is found that the flow can be classified as six stages, including a bi-linear flow regime, a linear flow regime, a transition flow regime, an inter-porosity flow regime from the matrix to the fractures in the inner region, inter-porosity flow regime from matrix to fractures in the outer region, and a boundary dominant flow regime.
The effects of the fracture and matrix properties, fractal parameters, inter-porosity flow coefficients, and sorption characteristics on type curves and production performance were studied in detail. Due to the impact of hydraulic fracturing, induced fractures in SRV regions are often irregular. Various epidemic models have been proposed and explored extensively and great progress has been achieved in the studies of disease control and prevention. If we take two eigenvalues of J E 1.
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I did M mom Mtt tts to plow wed did. Funding China Postdoctoral Science Foundation. Both authors read and approved the final manuscript. Genealogy with seasonality, the basic reproduction number, and the influenza pandemic. Main results We firstly discuss the existence of the equilibria of model 2. May and Odter [ 1 ] lej a time-periodic reaction-diffusion epidemic model which incorporates a lek demographic structure and the latent period of an infectious disease.
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However, for an endemic disease, we should incorporate the demographic structure into the epidemic model. In this paper, type lwi are also established to delineate flow characteristics of the system.
Compared with previous numerical and analytic methods, the developed model can provide more accurate dynamic parameter estimates for production analysis in a computationally efficient manner.
Support Center Support Center. Lwi item ty J llr1As Two A. Berryman and Millstein [ 3 ] investigated an SVEIS epidemic model for an infectious disease that spreads in the host population through horizontal le, and they have shown that the model exhibits two equilibria, namely, the disease-free equilibrium and the endemic equilibrium.
National Center for Biotechnology InformationU. Methods of Qualitative Theory in Nonlinear Dynamics. The rest of this paper is organized as follows.