Abstract:
In 1970s, the US career education achieved significant development and produced extensive and deep influences under the supports of the public. As viewed from the sociology, the production and development of the career education is induced by the deep social factors. The opening integrated career system supported by the school, the community and the enterprise is the effective measure to solve the problems such as social equity and the continually ascending unemployment rate.

Abstract:
The characteristics of precursor variation before the M5.1 earthquake on July 4,2006,in Wenan of Hebei province is summarized.It is considered that the large number,completeness and acceleration of precursors are the characteristics of a coming strong earthquake.The geothermal variations at Sanmafang and Changping stations have the significance indicating the occuring time of Wenan earthquake.Through summarizing the precursor variations of Wenan earthquake,the necessities of synthetical prediction,precursor verification,precursor following and the further study are understanded.

Abstract:
We discuss the Lie point symmetries and discrete symmetries of the inviscid burgers equation. By employing the Lie group method of infinitesimal transformations, symmetry reductions and similarity solutions of the governing equation are given. Based on discrete symmetries analysis, two groups of discrete symmetries are obtained, which lead to new exact solutions of the inviscid Burgers equation. 1. Introduction Burgers equation is one of the basic partial differential equations of fluid mechanics. It occurs in various fields of applied mathematics, such as modeling of gas dynamics and traffic flow. For a given velocity and viscosity coefficient , the general form of Burgers equation is: where is a smooth function of . If , Burgers equation reduces to the inviscid Burgers equation: which is a prototype for equations for which the solution can develop discontinuities (shock waves). There are many methods to solve (1.2). In [1], the authors discussed the matrix exponential representations of solutions to similar equation of (1.2). Here we can use the method of Lie symmetries and discrete symmetries analysis to solve (1.2). The classical Lie symmetries of the partial differential equations (PDEs) which can be obtained through the Lie group method of infinitesimal transformations were originally developed by Lie [2]. We can use the basic prolongation method and the infinitesimal criterion of invariance to find some particular Lie point symmetries group of the nonlinear partial differential equations. The Lie groups of transformations admitted by a given system of differential equations can be used (1) to lower the order or eventually reduce the equation to quadrature, in the case of ordinary differential equations; (2) to determine particular solutions, called invariant solutions, or generate new solutions, once a special solution is known, in the case of ordinary differential equations or PDEs. In the past decades, much attention has been paid to the symmetry method and a series of achievements have been obtained [3–9]. Particularly, In [9], a five-dimensional symmetry algebra consisting of Lie point symmetries is firstly computed for the nonlinear Schr？dinger equation. But it seems that very few research on discrete symmetries is available up to now. In fact, discrete symmetries also play an important role in solving PDEs. For instance, to understand how a system changes its stability, to simplify the numerical computation of solutions of PDEs and to create new exact solutions from known solutions. Discrete symmetries are usually easy to guess but

Abstract:
The paper presents an investigation of the generation, evolution of Rossby solitary waves generated by topography in finite depth fluids. The forced ILW- (Intermediate Long Waves-) Burgers equation as a model governing the amplitude of solitary waves is first derived and shown to reduce to the KdV- (Korteweg-de Vries-) Burgers equation in shallow fluids and BO- (Benjamin-Ono-) Burgers equation in deep fluids. By analysis and calculation, the perturbation solution and some conservation relations of the ILW-Burgers equation are obtained. Finally, with the help of pseudospectral method, the numerical solutions of the forced ILW-Burgers equation are given. The results demonstrate that the detuning parameter holds important implications for the generation of the solitary waves. By comparing with the solitary waves governed by ILW-Burgers equation and BO-Burgers equation, we can conclude that the solitary waves generated by topography in finite depth fluids are different from that in deep fluids.

Abstract:
In light of the first underground gas storage engineering in China, the principles of underground gas storage caverns with water curtain are presented. Analysis and discussion of the water curtain from theory are carried out by finite element method. Numerical simulation results give a good proof that using water curtain to storage LPG (Liquefied Petroleum Gas) in underground is safe. It will provide quite valuable reference for the design and construction of gas storage cavern in China.

Abstract:
According to the principles of underground gas-storage caverns with water curtain, variational principle in LPG coupling system of stress field, seepage field and gas-storage field of underground gas-storage caverns is established and its FEM program is developed. The programs are applied in engineering, and the numerical model is proved to be reasonable and credible.

Abstract:
To reduce the incorrect association rate using NN (Nearest Neighbor) algorithm in complex environment in clutter, a new plot-track association algorithm-Approximate Multi-Sensor multi-target Joint Probabilistic Data Association (AMSJPDA) is presented in the paper. It uses all the measurements in the tracking gate and every measurement has its own power. Added the measurements multiplied by their power the near optimal track estimation is achieved. AMSJPDA, based on the Approximate probabilistic Computing (AC) and Direct probabilistic Computing (DC) brought forward by B. Zhou, is the amelioration of MSJPDA and demands less time than MSJPDA. It meets the need of large scale plates and the real-time performance of data fusion system. At the end of the paper the comparison result of AMSJPDA and the NN is given.

Abstract:
Multi-scale (wavelet) analysis is characterized by its focus on time and frequency.It is a worthy attempt to apply the multi-scale analysis to the fusion tracking field.Based on the multi-scale analytical approach and combining the dynamic system analysis of movement model with wavelet transform method,a quick algorithm is given for node variance matrix on different scales.A multi-scale self-adaptive fusion tracking method is then presented.This method adjusts tracking scale automatically according to the state of model target.It uses detective data efficiently and more accurately to describe the variation of track;and thus it avoids the disadvantages of single scale and also realizes the tracking towards dynamic target.

Abstract:
Based on a well-known Lie algebra, the multicomponent Guo hierarchy with self-consistent sources is proposed. With the help of a set of non-semisimple Lie algebra, the nonlinear bi-integrable couplings of the multicomponent Guo hierarchy with self-consistent sources are obtained. It enriches the content of the integrable couplings of hierarchies with self-consistent sources. Finally, the Hamiltonian structures are worked out by employing the variational identity. 1. Introduction Since the notion of integrable couplings was proposed in view of Virasoro symmetric algebras [1, 2] and the soliton theory, considerable research has been reported on the integrable couplings and associated properties of some known interesting integrable hierarchies, such as the AKNS hierarchy, the KN hierarchy, and the Burger hierarchy [3–6]. In order to produce multicomponent integrable systems, a type of multicomponent loop algebra was structured, and it followed that some multicomponent integrable systems were given and Hamiltonian structures of multicomponent systems were constructed through the component-trace identity in [7–13] and a general structure between Lie algebras and integrable coupling was given in [14, 15]. Here it is necessary to point out that the above-mentioned integrable couplings are linear for the supplementary variable, so they are called linear integrable couplings. Recently, Ma proposed the notion of nonlinear integrable couplings and gave the general scheme to construct the nonlinear integrable couplings of hierarchies [16]. In [17, 18], based on the general scheme of constructing nonlinear integrable couplings, Zhang introduced some new explicit Lie algebras and obtained the nonlinear integrable couplings of the GJ hierarchy, the Yang hierarchy, and the CBB hierarchy. In [19], Ma employed a class of non-semisimple matrix loop algebras to generate bi-integrable couplings of soliton equation from the zero curvature equations. On the other hand, with the development of soliton theory, people began to focus on the soliton equation with self-consistent sources [20, 21]. The soliton equations with self-consistent sources have important physical meaning and are often used to express interactions between different solitary waves and are relevant to some problems of hydrodynamics, solid state physics, plasma physics, and so on [22, 23]. In [24–26], Yu and Xia discussed the integrable couplings of hierarchies with self-consistent sources and obtained a series of integrable hierarchies with self-consistent sources and their couplings systems as well as