Suppression of the critical collapse for one-dimensional solitons by saturable quintic nonlinear lattices

The stabilization of one-dimensional solitons by a nonlinear lattice against the critical collapse in the focusing quintic medium is a challenging issue. We demonstrate that this purpose can be achieved by combining a nonlinearlatticeandsaturationofthequinticnonlinearity. Thesystemsupportsthreespeciesofsolitons, namely, fundamental (even-parity) ones and dipole (odd-parity) modes of on- and off-site-centered types. Very narrow fundamental solitons are found in an approximate analytical form, and systematic results for very broad unstable and moderately broad partly stable solitons, including their existence and stability areas, are produced by means of numerical methods. Stability regions of the solitons are identified by means of systematic simulations. The stability of all the soliton species obeys the Vakhitov-Kolokolov criterion.Comment: 8 pages,8 figures, Chaos (2018), to be publishe

The application of change management as a consultant in a Chinese enterprise during 2016-2017

In moderm society, the user’s expectation on the quality of the environment are becoming imperative. Especially for shopping malls, restaurants, office buildings, hotels, airports, railway stations and other public places, in the core areas of the city, the service quality has become a key element of people’s first impression. Because of that all of environmental service enterprises came into being to promote the development of the tertiary industry an important part of social economy. With new age of the golobalization bettwen strategic implementation and management challenges, how to improve the market competitiveness will be the hardest challenge to all of the enterprises. Face up to this challenge, to build human resources management system with high-qualified performance has become common concern to the company's leaders. However there are some arguments between human resource management and firm performance. Becasue do not have many research analysis samples on china small medium enteprise between human resource management and enterprise performance deeply. Therefore, this case study takes the small medium enterprises as a research project, analyzes the human resource management and the enterprise performance correlation deeply and detailly

Strong Asymptotic Properties of Kernel Smooth Density and Hazard Function Estimation for Right Censoring NA Random Variable

Most studies for NA random variable is under complete sampling setting, which is actually an relatively ideal condition in application. The paper relaxes this condition to the censoring incomplete sampling data and considers the topic for kernel estimation of the density function together with the hazard function based on the Kaplan-Meier estimator. The strong asymptotic properties for the two estimators are firstly established

Efficient excitation and tuning of toroidal dipoles within individual homogenous nanoparticles

We revisit the fundamental topic of light scattering by single homogenous nanoparticles from the new perspective of excitation and manipulation of toroidal dipoles. It is revealed that besides within all-dielectric particles, toroidal dipoles can also be efficiently excited within homogenous metallic nanoparticles. Moreover, we show that those toroidal dipoles excited can be spectrally tuned through adjusting the radial anisotropy parameters of the materials, which paves the way for further more flexible manipulations of the toroidal responses within photonic systems. The study into toroidal multipole excitation and tuning within nanoparticles deepens our understanding of the seminal problem of light scattering, and may incubate many scattering related fundamental researches and applications.Comment: Four Figures,Ten Pages and Comments Welcome

Elusive pure anapole excitation in homogenous spherical nanoparticles with radial anisotropy

For homogenous isotropic dielectric nanospheres with incident plane waves, Cartesian electric and toroidal dipoles can be tunned to cancel each other in terms of far-field scattering, leading to the effective anopole excitation. At the same time however, other multipoles such as magnetic dipoles with comparable scattered power are simultanesouly excited, mixing with the anopole and leading to a non-negligible total scattering cross section. Here we show that for homogenous dielectric nanospheres, radial anisotropy can be employed to significantly suppress the other multipole excitation, which at the same time does not compromise the property of complete scattering cancallation between Cartesian electric and toroidal dipoles. This enables an elusive pure anopole excitation within radially anisotropic dielectric nanospheres, which may shed new light to many scattering related fundamental researches and applications.Comment: Invited submission with four figures and ten pages. Comments welcome