Entanglement Dynamics in Typical Local- and Normal-Mode Molecules

在在一个代数学的模型的理论上典型的本地模式、正常模式的分子和现实主义的分子 H2O 和 SO2 的二拉长的颤动的纠纷动力学以有带去 betwo 模式的起始的纠缠的状态的线性熵挤压了的还原剂密度被学习真空状态。在理论上典型的分子的熵的行为看起来在现实主义的比那更常规，这被显示出，并且熵作为二模式的挤压的真空状态的振幅变得不规则，这增加。为有一个小振幅的起始的状态，频率和熵的“古典”的敲击现象在在现实主义的分子 H2O 和 SO2 是比那更常规的理论上典型的分子随敲击发生，这被表明。

Quantum Entanglement and Normal-to-Local Transition in Molecule H2S

在分子 H2S 的二段的量纠纷以熵随着时间的过去由一般水准定义的还原剂密度 von Neumann 熵和平均数为各种各样的起始的状态被调查。这被显示出最大并且与本地模式的特性一起的一个起始的状态的吝啬的熵是比与正常模式的特性一起的那些小的，并且吝啬的熵在 normal-to-local 转变的位置附近显示最大值。

Evaluation of a Contemporary College English Listening Textbook for Second-year English Major Students at University Level

The role of textbooks,as one important channel between teachers and students,has always aroused scholars'interests,but what indeed are the roles of textbook for students and teachers? This paper aims to evaluate a listening textbook that is used by English major university students in China.Three research questions are proposed which are:(1) What are the students'per ceptions about the listening textbook? (2) What are the teachers'opinions about the listening textbook? (3) To what extent do students and teachers perceptions match? In order to answer these three research questions,questionnaires were designed for both students and teachers to obtain the data.This study is supported both qualitatively and quantitatively.The data of this research suggested that both students and teachers have found advantages of this listening textbook,which they may find helpful for their learning and teaching,but they are also not satisfied with some aspects of the textbook,which they think need further improvement.The students'and teachers'opinions to some extent have reached some agreement about the textbook,but students may not be so enthusiastic about the textbook,while the teachers may show much reliance on the text book.This study has its limitations,but it also provides some insights for teachers and textbook writers.

Hierarchical Structure, Disassortativity and Information Measures of the US Flight Network

我们调查混合结构指导并且进化美国飞行网络。如此的一个网络是一个层次网络，这被显示出，与平均 assortativitycoefficient -0.37。能给一样的结果的基于信息的方法的申请提供一个方法探索复杂网络的结构。

Stability of Random Networks under Evolution of Attack and Repair

与一个简单模型一起，我们在攻击和修理的进化下面学习随机的网络的稳定性。我们介绍新数量，即不会受伤害我，描述系统的稳定性。网络能演变到一个静止状态，这被发现。Thestationary 价值我在起始的平均的度(k) 上有幂定律依赖，与关于 -1.5 的斜坡。处于静止状态，度分发为一般的随机的图是正常分布，而非不正常的泊松分发。处于静止状态的聚类的系数处于起始的状态比那大得多。网络的稳定性仅仅取决于起始的平均的度(k) ，它与(k) 的减少很快增加。

THE EXISTENCE OF NONTRIVIAL SOLUTIONS TO A SEMILINEAR ELLIPTIC SYSTEM ON R N WITHOUT THE AMBROSETTI-RABINOWITZ CONDITION

In this paper, we prove the existence of at least one positive solution pair （u, v）∈ H1（RN） × H1（RN） to the following semilinear elliptic system {-△u＋u=f（x,v）,x∈RN,-△u＋u=g（x,v）,x∈RN （0.1）,by using a linking theorem and the concentration-compactness principle. The main conditions we imposed on the nonnegative functions f, g ∈C0（RN× R1） are that, f（x, t） and g（x, t） are superlinear at t = 0 as well as at t =＋∞, that f and g are subcritical in t and satisfy a kind of monotonic conditions. We mention that we do not assume that f or g satisfies the Ambrosetti-Rabinowitz condition as usual. Our main result can be viewed as an extension to a recent result of Miyagaki and Souto [J. Diff. Equ. 245（2008）, 3628-3638] concerning the existence of a positive solution to the semilinear elliptic boundary value problem {-△u＋u=f（x,u）,x∈Ω,u∈H0^1（Ω） where Ω ∩→RN is bounded and a result of Li and Yang [G. Li and J. Yang： Communications in P.D.E. Vol. 29（2004） Nos.5＆ 6.pp.925-954, 2004] concerning （0.1） when f and g are asymptotically linear.

MULTIPLE STATIONARY SOLUTIONS OF EULER-POISSON EQUATIONS FOR NON-ISENTROPIC GASEOUS STARS

The motion of the self-gravitational gaseous stars can be described by the Euler-Poisson equations. The main purpose of this paper is concerned with the existence of stationary solutions of Euler-Poisson equations for some velocity fields and entropy functions that solve the conservation of mass and energy. Under different restriction to the strength of velocity field, we get the existence and multiplicity of the stationary solutions of Euler-Poisson system.

Message Spreading and Forget-Remember Mechanism on a Scale-Free Network

我们学习消息在一个没有规模的网络上传播，由介绍新奇忘记记得机制。消息，能指电子邮件的一个一般术语，新闻，谣言或疾病，等等，能被它的持有者忘记并且记得。消息被忘记并且记得的方法被 forget 管理并且分别地记得功能， F 和 R。F 和 R 是有关个人的家的历史时间 t 的功能以前的状态，也就是是活跃的(与消息) 或不活跃(没有消息) 。我们以传播能是有效的低传播率的系统的模拟表演被相应参数首先为 F 和 R 决定。

Opinion Dynamics on Complex Networks with Communities

The Ising or Potts models of ferromagnetism have been widely used to describe locally interacting social or economic systems. We consider a related model, introduced by Sznajd to describe the evolution of consensus in the scale-free networks with the tunable strength （noted by Q） of community structure. In the Sznajd model, the opinion or state of any spins can only be changed by the influence of neighbouring pairs of similar connection spins. Such pairs can polarize their neighbours. Using asynchronous updating, it is found that the smaller the community strength Q, the larger the slope of the exponential relaxation time distribution. Then the effect of the initial upspin concentration p as a function of the final all up probability E is investigated by taking different initialization strategies, the random node-chosen initialization strategy has no difference under different community strengths, while the strategies of community node-chosen initialization and hub node-chosen initialization are different in fina/probability under different Q, and the latter one is more effective in reaching final state.

The Impact of the Cognition of Landscape Experience on Tourist Environmental Conservation Behaviors

This article explores the relationship between the tourist's cognition of the landscape experience and the environmental conservation efforts at three distinct tourist sites in mountains of southwestern China. A total of 1500 on-site questionnaire surveys were distributed and 1142 valid questionnaires were used for statistical analysis. Results from multi-group path analysis showed that both cognition of the cultural landscape experience and cognition of the natural landscape experience had positive impacts on environmental conservation behaviors and behavior intentions of tourists. Results from comparative analysis among the three tourist sites indicated that cognition of the cultural landscape experience had a stronger power to predict senior environmental conservation behaviors and behavior intentions than cognition of the natural landscape experience, whereas cognition of the natural landscape experience had more power to predict general environmental conservation behaviors and behavior intentions than cognition of the cultural landscape experience. Furthermore, our findings benefit environmental management and sustainabilityat tourist sites.

Influence of Tourists′ Environmental Tropisms on Their Attitudes to Tourism and Nature Conservation in Natural Tourist Destinations: A Case Study of Jiuzhaigou National Park in China

People′s environmental tropism has an effect on their understanding of tourism-nature relationship,and also influences their attitudes to natural resources utilization and environmental protection.Taking Jiuzhaigou National Park of China as a study case,the authors conducted some quantitative analyses with the tools of SPSS 16.0 and LISREL 8.7,to explore the influence of tourists′ environmental tropism on their attitudes to tourism and nature conservation in the natural tourist destination.Three hypotheses and the theoretic model of influences of tourists′ environmental tropism on their attitudes to tourism and nature conservation have been tested and accepted based on the Structural Equation Model analysis on survey data collected in Jiuzhaigou National Park of China.Some conclusions were drawn as follows: 1) tourists′ human-prioritized concept influences their cognition to tourism-nature relationship.This concept has a positive influence on their supportive attitudes to tourism,but a negative influence on their attitudes to nature conservation;2) tourists′ human-nature coordination concept has a positive influence on their supportive attitudes to both tourism and nature conservation,especially to the latter.This paper generally proves that human′s environmental tropism does have an influence on their attitudes to tourism and nature conservation in natural tourist destinations.

Population Inversion of a V-type Three-Level Atom due to the Effect of Cavity-Induced Quantum Interference

A cavity-modified master equation is derived for a coherently driven V-type three-level atom coupled to a singlemode cavity in the bad cavity limit.The influences of the cavity-induced quantum interference on the steady-state populations are analysed.We show that the population inversion can occur due to the effect of cavity-induced quantum interference.

REGULARITY OF THE SOLUTIONS FOR NONLINEAR BIHARMONIC EQUATIONS IN R^N

The purpose of this article is to establish the regularity of the weak solutions for the nonlinear biharmonic equation {△^2u ＋ a（x）u = g（x, u）u∈ H^2（R^N）, where the condition u∈ H^2（R^N） plays the role of a boundary value condition, and as well expresses explicitly that the differential equation is to be satisfied in the weak sense.

Dressing Multiphoton Hamiltonian

The dressed Hamiltonian describing the multiphoton process is presented by means of a canonical transformation.The exact eigenvalues and eigenstates are given for any set of parameters ω_(0),ω and ε.The general evolution of this system is obtained.

Effects of Nonlinear Time-Delay on a Stochastic Asymmetric System

我们数字地在随机的系统上调查非线性的时间延期的效果。与增加的延期时间，处于低稳定的状态的概率分发的山峰被减少，这被发现，并且处于高稳定的状态的概率分发的山峰被增加。州的变量，规范的变化，和确定的规范的自相关函数的平均数集中的学位慢慢地在小延期时间被改变。然而，州的变量的平均数很快被增加，并且规范的变化和规范的自相关功能很快在大延期时间被减少。

The Fractal Dimensions of Complex Networks

It is shown that many real complex networks share distinctive features, such as the small-world effect and the heterogeneous property of connectivity of vertices, which are different from random networks and regular lattices. Although these features capture the important characteristics of complex networks, their applicability depends on the style of networks. To unravel the universal characteristics many complex networks have in common, we study the fractal dimensions of complex networks using the method introduced by Shanker. We find that the average ＇density＇ （p（r ） ） of complex networks follows a better power-law function as a function of distance r with the exponent dl, which is defined as the fractal dimension, in some real complex networks. Furthermore, we study the relation between df and the shortcuts Nadd in small-world networks and the size N in regular lattices. Our present work provides a new perspective to understand the dependence of the fractal dimension df on the complex network structure.

Strong Correlation of Fluorescence Photons without Quantum Interference

It has been predicted that a driven three-level V atom can emit strongly correlated fluorescence photons in the presence of quantum interference. Here we examine the effects of quantum interference on the intensity correlation of fluorescence photons emitted from a driven three-level A atom. Unexpectedly, strong correlation occurs without quantum interference. The quantum interference tends to reduce the correlation function to a normal level. The essential difference between these two cases is traced to the different effects of quantum interference on coherent population trapping （OPT）. For the V atom, quantum interference and coherent excitation combine to lead to OPT. For the A atom, however, the quantum interference tends to spoil OPT while the coherent excitation induces the effect.

ON THE STABILITY OF THE POSITIVE RADIAL STEADY STATES FOR A SEMILINEAR CAUCHY PROBLEM INVOLVING CRITICAL EXPONENTS

This article is contributed to the Cauchy problem {δu/δt=△u＋K（｜x｜）u^p in R^n×（0,T）, u（x,0）=φ（x） in R^n;with initial function φ≡/0. The stability of positive radial steady state, which are positive solutions of △u ＋ K（｜x｜）u^p =0, is obtained when p is critical for general K（｜x｜）.

Spatial Accessibility of Road Network in Wuhan Metropolitan Area Based on Spatial Syntax

Based on space syntax theory, the spatial accessibility of the road network in Wuhan Metropolitan Area has been quantitatively analyzed by building a series of accessibility variables. Topologic connectivity in the accessible rings appears to be broken;traffic axis network is in spatial structure of hub-and-spoke and fishbone-like. Meanwhile, the differences in classified road network have led to inefficiency of its network servo and its ever-worsening capability to respond to traffic jams. Besides, two band-like integrated cores of which one is east to west along the Yangtze River and the other is north to south along Beijing to Guangzhou Railway, have become the first level traffic axis in the whole network, which is responsible for the connectivity of the entire metropolitan area network. This consequently has strengthened the dominant position of Wuhan which is located on the bands’ crossing. In short, the spatial accessibility of that classified space morphology, the urban system, the transport infrastructure as well as the social and economic development of Wuhan Metropolitan Area are highly interrelated to each other, especially to the high level highway network featured by freeways, the development level of which is well in line with that of road network accessibility.

STABILITY OF GASEOUS STARS IN THE NON-ISENTROPIC CASE

The motion of the self-gravitational gaseous stars can be described by the Euler-Poisson equations. The main purpose of this article is concerned with the nonlinear stability of gaseous stars in the non-isentropic case, when 34 γ2, S（x,t） is a smooth bounded function. First, we verify that the steady states are minimizers of the energy via concentration-compactness method; then using the variational approach we obtain the stability results of the non-isentropic flow.