**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**105

# Search results for: Xia Zhou

##### 105 Zhou Enlai’s Impact to the Foreign Folicy of China

**Authors:**
Nazira B. Boldurukova

**Abstract:**

The main aim of this article is to give the information about life and social and diplomatic work of Zhou Enlai, to prove his identity in his impact to the history of the world; to show his place in the organization of internal and foreign policy and in the peaceful international relationships of China with other countries.

**Keywords:**
China,
foreign policy of China,
identity,
politician,
diplomacy,
Zhou Enlai.

##### 104 Phase-Averaged Analysis of Three-Dimensional Vorticity in the Wake of Two Yawed Side-By-Side Circular Cylinders

**Authors:**
T. Zhou,
S. F. Mohd. Razali,
Y. Zhou,
H. Wang,
L. Cheng

**Abstract:**

Thewake flow behind two yawed side-by-sidecircular cylinders is investigated using athree-dimensional vorticity probe. Four yaw angles (α), namely, 0°, 15°, 30° and 45° and twocylinder spacing ratios T* of 1.7 and 3.0 were tested. For T* = 3.0, there exist two vortex streets and the cylinders behave as independent and isolated ones. The maximum contour value of the coherent streamwise vorticity ~* ωx is only about 10% of that of the spanwise vorticity ~* ωz . With the increase of α, ~* ωx increases whereas ~* ωz decreases. At α = 45°, ~* ωx is about 67% of ~* ωz .For T* = 1.7, only a single peak is detected in the energy spectrum. The spanwise vorticity contours have an organized pattern only at α = 0°. The maximum coherent vorticity contours of ~* ω x and ~* ωz for T* = 1.7 are about 30% and 7% of those for T* = 3.0.The independence principle (IP)in terms of Strouhal numbers is applicable in both wakes when α< 40°.

**Keywords:**
Circular cylinder wake,
vorticity,
vortex shedding.

##### 103 A Sufficient Condition for Graphs to Have Hamiltonian [a, b]-Factors

**Authors:**
Sizhong Zhou

**Abstract:**

Let a and b be nonnegative integers with 2 ≤ a < b, and let G be a Hamiltonian graph of order n with n ≥ (a+b−4)(a+b−2) b−2 . An [a, b]-factor F of G is called a Hamiltonian [a, b]-factor if F contains a Hamiltonian cycle. In this paper, it is proved that G has a Hamiltonian [a, b]-factor if |NG(X)| > (a−1)n+|X|−1 a+b−3 for every nonempty independent subset X of V (G) and δ(G) > (a−1)n+a+b−4 a+b−3 .

**Keywords:**
graph,
minimum degree,
neighborhood,
[a,
b]-factor,
Hamiltonian [a,
b]-factor.

##### 102 Hamiltonian Factors in Hamiltonian Graphs

**Authors:**
Sizhong Zhou,
Bingyuan Pu

**Abstract:**

**Keywords:**
graph,
neighborhood,
factor,
Hamiltonian factor.

##### 101 [a, b]-Factors Excluding Some Specified Edges In Graphs

**Authors:**
Sizhong Zhou,
Bingyuan Pu

**Abstract:**

Let G be a graph of order n, and let a, b and m be positive integers with 1 ≤ a<b. An [a, b]-factor of G is deﬁned as a spanning subgraph F of G such that a ≤ dF (x) ≤ b for each x ∈ V (G). In this paper, it is proved that if n ≥ (a+b−1+√(a+b+1)m−2)2−1 b and δ(G) > n + a + b − 2 √bn+ 1, then for any subgraph H of G with m edges, G has an [a, b]-factor F such that E(H)∩ E(F) = ∅. This result is an extension of thatof Egawa [2].

**Keywords:**
graph,
minimum degree,
[a,
b]-factor.

##### 100 Transformerless AC-DC Converter

**Authors:**
Saisundar. S.,
I Made Darmayuda,
Zhou Jun,
Krishna Mainali,
Simon Ng Sheung Yan,
Eran Ofek

**Abstract:**

**Keywords:**
AC-DC converter,
digitally controlled,
switched
mode power supply,
transformerless.

##### 99 A Convenient Part Library Based On SolidWorks Platform

**Authors:**
Wei Liu,
Xionghui Zhou,
Qiang Niu,
Yunhao Ni

**Abstract:**

3D part library is an ideal approach to reuse the existing design and thus facilitates the modeling process, which will enhance the efficiency. In this paper, we implemented the thought on the SolidWorks platform. The system supports the functions of type and parameter selection, 3D template driving and part assembly. Finally, BOM is exported in Excel format. Experiment shows that our method can satisfy the requirement of die and mold designers.

**Keywords:**
Intelligent,
SolidWorks,
automatic assembly,
part
library.

##### 98 Study on Rural Landscape Design Method under the Background of the Population Diversification

**Authors:**
Z. Zhou,
Q. Chen,
S. Wu

**Abstract:**

Population diversification phenomena becomes quite common in villages located in China’s developed coastal area. Based on the analysis of the traditional rural society and its landscape characteristics, and in consideration of diversified landscape requirements due to the population diversification, with dual ideas of heritage and innovation, methods for rural landscape design were explored by taking Duxuao Village in Zhejiang Province of China as an example.

**Keywords:**
Rural landscape,
Population diversification,
Landscape design.

##### 97 A Comprehensive Analysis for Widespread use of Electric Vehicles

**Authors:**
Yu Zhou,
Zhaoyang Dong,
Xiaomei Zhao

**Abstract:**

**Keywords:**
electronic vehicles,
grey prediction,
game theory

##### 96 Low Power Digital System for Reconfigurable Neural Recording System

**Authors:**
Peng Li,
Jun Zhou,
Xin Liu,
Chee Keong Ho,
Xiaodan Zou,
Minkyu Je

**Abstract:**

**Keywords:**
multiplex,
neural recording,
synchronization,
transceiver

##### 95 Notes on Fractional k-Covered Graphs

**Authors:**
Sizhong Zhou,
Yang Xu

**Abstract:**

**Keywords:**
graph,
binding number,
fractional k-factor,
fractional k-covered graph.

##### 94 On Fractional (k,m)-Deleted Graphs with Constrains Conditions

**Authors:**
Sizhong Zhou,
Hongxia Liu

**Abstract:**

Let G be a graph of order n, and let k 2 and m 0 be two integers. Let h : E(G) [0, 1] be a function. If e∋x h(e) = k holds for each x V (G), then we call G[Fh] a fractional k-factor of G with indicator function h where Fh = {e E(G) : h(e) > 0}. A graph G is called a fractional (k,m)-deleted graph if there exists a fractional k-factor G[Fh] of G with indicator function h such that h(e) = 0 for any e E(H), where H is any subgraph of G with m edges. In this paper, it is proved that G is a fractional (k,m)-deleted graph if (G) k + m + m k+1 , n 4k2 + 2k − 6 + (4k 2 +6k−2)m−2 k−1 and max{dG(x), dG(y)} n 2 for any vertices x and y of G with dG(x, y) = 2. Furthermore, it is shown that the result in this paper is best possible in some sense.

**Keywords:**
Graph,
degree condition,
fractional k-factor,
fractional (k,
m)-deleted graph.

##### 93 Single Spectrum End Point Predict of BOF with SVM

**Authors:**
Ling-fei Xu,
Qi Zhao,
Yan-ru Chen,
Mu-chun Zhou,
Meng Zhang,
Shi-xue Xu

**Abstract:**

SVM ( Support Vector Machine ) is a new method in the artificial neural network ( ANN ). In the steel making, how to use computer to predict the end point of BOF accuracy is a great problem. A lot of method and theory have been claimed, but most of the results is not satisfied. Now the hot topic in the BOF end point predicting is to use optical way the predict the end point in the BOF. And we found that there exist some regular in the characteristic curve of the flame from the mouse of pudding. And we can use SVM to predict end point of the BOF, just single spectrum intensity should be required as the input parameter. Moreover, its compatibility for the input space is better than the BP network.

**Keywords:**
SVM,
predict,
BOF,
single spectrum intensity.

##### 92 A Neighborhood Condition for Fractional k-deleted Graphs

**Authors:**
Sizhong Zhou,
Hongxia Liu

**Abstract:**

Abstract–Let k ≥ 3 be an integer, and let G be a graph of order n with n ≥ 9k +3- 42(k - 1)2 + 2. Then a spanning subgraph F of G is called a k-factor if dF (x) = k for each x ∈ V (G). A fractional k-factor is a way of assigning weights to the edges of a graph G (with all weights between 0 and 1) such that for each vertex the sum of the weights of the edges incident with that vertex is k. A graph G is a fractional k-deleted graph if there exists a fractional k-factor after deleting any edge of G. In this paper, it is proved that G is a fractional k-deleted graph if G satisfies δ(G) ≥ k + 1 and |NG(x) ∪ NG(y)| ≥ 1 2 (n + k - 2) for each pair of nonadjacent vertices x, y of G.

**Keywords:**
Graph,
minimum degree,
neighborhood union,
fractional k-factor,
fractional k-deleted graph.

##### 91 A Schur Method for Solving Projected Continuous-Time Sylvester Equations

**Authors:**
Yiqin Lin,
Liang Bao,
Qinghua Wu,
Liping Zhou

**Abstract:**

**Keywords:**
Projected Sylvester equation,
Schur factorization,
Spectral projection,
Direct method.

##### 90 A New Algorithm for Determining the Leading Coefficient of in the Parabolic Equation

**Authors:**
Shiping Zhou,
Minggen Cui

**Abstract:**

**Keywords:**
parabolic equations,
coefficient inverse problem,
reproducing
kernel.

##### 89 A Robust Audio Fingerprinting Algorithm in MP3 Compressed Domain

**Authors:**
Ruili Zhou,
Yuesheng Zhu

**Abstract:**

**Keywords:**
Audio Fingerprinting,
MP3,
Modulation Frequency,
TSM

##### 88 Approximation Incremental Training Algorithm Based on a Changeable Training Set

**Authors:**
Yi-Fan Zhu,
Wei Zhang,
Xuan Zhou,
Qun Li,
Yong-Lin Lei

**Abstract:**

**Keywords:**
support vector regression,
incremental learning,
changeable training set,
quick training algorithm,
accurate solutionprocedure

##### 87 Unsupervised Image Segmentation Based on Fuzzy Connectedness with Sale Space Theory

**Authors:**
Yuanjie Zheng,
Jie Yang,
Yue Zhou

**Abstract:**

**Keywords:**
Image segmentation,
unsupervised imagesegmentation,
fuzzy connectedness,
scale space.

##### 86 Delay-range-Dependent Exponential Synchronization of Lur-e Systems with Markovian Switching

**Authors:**
Xia Zhou,
Shouming Zhong

**Abstract:**

The problem of delay-range-dependent exponential synchronization is investigated for Lur-e master-slave systems with delay feedback control and Markovian switching. Using Lyapunov- Krasovskii functional and nonsingular M-matrix method, novel delayrange- dependent exponential synchronization in mean square criterions are established. The systems discussed in this paper is advanced system, and takes all the features of interval systems, It╦åo equations, Markovian switching, time-varying delay, as well as the environmental noise, into account. Finally, an example is given to show the validity of the main result.

**Keywords:**
Synchronization,
delay-range-dependent,
Markov chain,
generalized Itō's formula,
brownian motion,
M-matrix.

##### 85 Some New Inequalities for Eigenvalues of the Hadamard Product and the Fan Product of Matrices

**Authors:**
Jing Li,
Guang Zhou

**Abstract:**

Let A and B be nonnegative matrices. A new upper bound on the spectral radius ρ(A◦B) is obtained. Meanwhile, a new lower bound on the smallest eigenvalue q(AB) for the Fan product, and a new lower bound on the minimum eigenvalue q(B ◦A−1) for the Hadamard product of B and A−1 of two nonsingular M-matrices A and B are given. Some results of comparison are also given in theory. To illustrate our results, numerical examples are considered.

**Keywords:**
Hadamard product,
Fan product; nonnegative matrix,
M-matrix,
Spectral radius,
Minimum eigenvalue,
1-path cover.

##### 84 Improved Robust Stability Criteria of a Class of Neutral Lur’e Systems with Interval Time-Varying Delays

**Authors:**
Longqiao Zhou,
Zixin Liu,
Shu Lü

**Abstract:**

This paper addresses the robust stability problem of a class of delayed neutral Lur’e systems. Combined with the property of convex function and double integral Jensen inequality, a new tripe integral Lyapunov functional is constructed to derive some new stability criteria. Compared with some related results, the new criteria established in this paper are less conservative. Finally, two numerical examples are presented to illustrate the validity of the main results.

**Keywords:**
Lur’e system,
Convex function,
Jensen integral inequality,
Triple-integral method,
Exponential stability.

##### 83 Geographic Profiling Based on Multi-point Centrography with K-means Clustering

**Authors:**
Jiaji Zhou,
Le Liang,
Long Chen

**Abstract:**

Geographic Profiling has successfully assisted investigations for serial crimes. Considering the multi-cluster feature of serial criminal spots, we propose a Multi-point Centrography model as a natural extension of Single-point Centrography for geographic profiling. K-means clustering is first performed on the data samples and then Single-point Centrography is adopted to derive a probability distribution on each cluster. Finally, a weighted combinations of each distribution is formed to make next-crime spot prediction. Experimental study on real cases demonstrates the effectiveness of our proposed model.

**Keywords:**
Geographic profiling,
Centrography model,
K-means algorithm

##### 82 The Catalytic Properties of PtSn/Al2O3 for Acetic Acid Hydrogenation

**Authors:**
Mingchuan Zhou,
Haitao Zhang,
Hongfang Ma,
Weiyong Ying

**Abstract:**

Alumina supported platinum and tin catalysts with different loadings of Pt and Sn were prepared and characterized by low temperature N_{2} adsorption/desorption, H_{2}-temperature programed reduction and CO pulse chemisorption. Pt and Sn below 1% loading were suitable for acetic acid hydrogenation. The best performance over 0.75Pt1Sn/Al_{2}O_{3} can reach 87.55% conversion of acetic acid and 47.39% selectivity of ethanol. The operating conditions of acetic acid hydrogenation over 1Pt1Sn/Al_{2}O_{3} were investigated. High reaction temperature can enhance the conversion of acetic acid, but it decreased total selectivity of ethanol and acetyl acetate. High pressure and low weight hourly space velocity were beneficial to both conversion of acetic acid and selectivity to ethanol.

**Keywords:**
Acetic acid,
hydrogenation,
PtSn,
operating condition.

##### 81 A New Robust Stability Criterion for Dynamical Neural Networks with Mixed Time Delays

**Authors:**
Guang Zhou,
Shouming Zhong

**Abstract:**

In this paper, we investigate the problem of the existence, uniqueness and global asymptotic stability of the equilibrium point for a class of neural networks, the neutral system has mixed time delays and parameter uncertainties. Under the assumption that the activation functions are globally Lipschitz continuous, we drive a new criterion for the robust stability of a class of neural networks with time delays by utilizing the Lyapunov stability theorems and the Homomorphic mapping theorem. Numerical examples are given to illustrate the effectiveness and the advantage of the proposed main results.

**Keywords:**
Neural networks,
Delayed systems,
Lyapunov function,
Stability analysis.

##### 80 Influence of Heat Transfer on Stability of Newtonian and Non-Newtonian Extending Films

**Authors:**
Olus N. Boratav,
Zheming Zheng,
Chunfeng Zhou

**Abstract:**

The stability of Newtonian and Non-Newtonian extending films under local or global heating or cooling conditions are considered. The thickness-averaged mass, momentum and energy equations with convective and radiative heat transfer are derived, both for Newtonian and non-Newtonian fluids (Maxwell, PTT and Giesekus models considered). The stability of the system is explored using either eigenvalue analysis or transient simulations. The results showed that the influence of heating and cooling on stability strongly depends on the magnitude of the Peclet number. Examples of stabilization or destabilization of heating or cooling are shown for Pe<< 1, and Pe = O(1) cases, for Newtonian and non-Newtonian flows.

**Keywords:**
Extended films,
stability,
eigen-analysis for stability,
transient response,
polymer instability,
Non-Newtonian fluids.

##### 79 Application of Functional Network to Solving Classification Problems

**Authors:**
Yong-Quan Zhou,
Deng-Xu He,
Zheng Nong

**Abstract:**

**Keywords:**
Functional network,
neural network,
XOR problem,
classification,
numerical analysis method.

##### 78 Robust Fuzzy Control of Nonlinear Fuzzy Impulsive Singular Perturbed Systems with Time-varying Delay

**Authors:**
Caigen Zhou,
Haibo Jiang

**Abstract:**

**Keywords:**
T–S fuzzy model,
singular perturbed systems,
time-varying delay,
robust control.

##### 77 Multiscale Structures and Their Evolution in a Screen Cylinder Wake

**Authors:**
Azlin M. Azmi,
T. Zhou,
A. Rinoshika,
L. Cheng

**Abstract:**

The turbulent structures in the wake (*x/d *=10 to 60) of a screen cylinder have been educed to understand the roles of the various structures as evolving downstream by comparing with those obtained in a solid circular cylinder wake at Reynolds number, *Re *of 7000. Using a wavelet multiresolution technique, the flow structures are decomposed into a number of wavelet components based on their central frequencies. It is observed that in the solid cylinder wake, large-scale structures (of frequency*f _{0}* and 1.2

*f*) make the largest contribution to the Reynolds stresses although they start to lose their roles significantly at

_{0}*x/d*> 20. In the screen cylinder wake, the intermediate-scale structures (2

*f*and 4

_{0 }*f*) contribute the most to the Reynolds stresses at

_{0}*x/d*=10 before being taken over by the large-scale structures (

*f*) further downstream.

_{0}**Keywords:**
Turbulent structure,
screen cylinder,
vortex,
wavelet multiresolution analysis.

##### 76 An Area-Efficient and Low-Power Digital Pulse-Width Modulation Controller for DC-DC Switching Power Converter

**Authors:**
Jingjing Lan,
Jun Zhou,
Xin Liu

**Abstract:**

In this paper, a low-power digital controller for DC-DC power conversion was presented. The controller generates the pulse-width modulated (PWM) signal from digital inputs provided by analog-to-digital converter (ADC). An efficient and simple design scheme to develop the control unit was discussed. This method allows minimization of the consumed resources of the chip and it is based on direct digital design approach. In this application, with the proposed scheme, nearly half area and two-third of the power consumption was saved compared to the conventional schemes. This work illustrates the possibility of implementing low-power and area-efficient power management circuit using direct digital design based approach.

**Keywords:**
Buck converter,
DC-DC power conversion,
digital control,
proportional-integral (PI) controller.