In this paper,using KAM theory,we obtain the boundedness of solutions as well as the existence of many invariant tori for jumping nonlinear oscilltions.

In this paper,bifurcation of subharmonic solutions and invariant tori of a three-dimensional system under periodic perturbation is studied.

Bifurcations of nonhyperbolic invariant torus;

By the method of averaging and Floquet theory, the bifurcations of the nonhyperbolic invariant torus in the extended phase space are studied.

By means of periodic transformations and integral manifold theory, we investigate planar periodic perturbed systems, and obtain for the strong resonant case , a condition under which an invariant torus is bifurcated from a weak focus of order one.

The present paper deals with the persistence of lower dimensional tori, the integrable system has a more general form.

In this paper,we consider the persistence of lower dimensional tori of integrable Hamiltonian systems under small analytic perturbations.

Objective To investigate the relationship between the levels of high sensitivity C-reactive protein (hs-CRP) and the involving degrees of sidebranch vessel in the stent implantation of bifurcation lesions.

Treatment of coronary bifurcation lesions represents a challenging area in interventional cardiology.

The provisional stenting of implanting one stent on the main branch is the default approach in most bifurcation lesions.

Treatment of Bifurcation Lesions Using T-Stent Technique:A Long Term Follow-up;

Effect of modified balloon crushing technique in treatment of coronary bifurcation lesions by transradial access

Coronary bifurcation is one of the most challenging lesion subsets in coronary percutaneous intervention.