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Journal of Jilin University Science Edition
ISSN 1671-5489
CN 22-1340/O
主 任:韩啸
编 辑:赵立芹 王健 单凝 李琦
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E-mail:sejuj@jlu.edu.cn
地 址:长春市南湖大路5372号
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Table of Content
26 November 2010, Volume 48 Issue 06
Exact Solutions to 2Dimensional Parabolic MongeAmpèreEquations with Source Term
DIAO Feng-Fei, LI Heng-Yan, LIU Dong
J4. 2010, 48 (06):  877-881. 
Abstract ( 1155 )   PDF (303KB) ( 522 )  

We used the invariant set method to solve the 2-dimensional parabolic MongeAmpère equation with source term ut=det D2u+P(u) in R2 and the generalized 2-dimensional parabolic Monge-Ampère equation with source term ut=A(u)(uxxuyy-uxyuxy)+B(u)uxx+C(u)uyy+D(u)uxy+E(u), and obtained the exact solutions of the two equations when the parameters were determined.

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Fixed Point Theorems, Matching Theorems andWhole Intersection Theorems on Abstract Convex Spaces
PIAO Yong-Jie
J4. 2010, 48 (06):  882-886. 
Abstract ( 1362 )   PDF (818KB) ( 442 )  

The concept of an abstact convex space without any topological structure was introduced, and fixed point theorems, matching theorems and whole intersection theorems were obtained on the basis of the well known coincidence point theorem on an abstract convex space, which is adequate to establish the KKM theory, and then  another type of coincidence theorem was given via obtained fixed point theorem. These results generalize and simplify the corresponding known results in the KKM theory on convex spaces, H-spaces, G-convex spaces, and others.

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Aggregate Homotopy InteriorPoint Method for a Class ofNonsmooth Constrained Optimization Problems
JIN Jian-Lu, HE Chi, TAN Jia-Wei, LIU Qiang-Fu
J4. 2010, 48 (06):  887-892. 
Abstract ( 1043 )   PDF (525KB) ( 477 )  

The authors studied the problems of nonsmooth programming on nonconvex sets under pseudocone condition with aggregate technique  combined homotopy interiorpoint method. The existence of solution of the generalized K-K-T equation was verified. The aggregate homotopy interior\|point method was established for finding the K-K-T point and a globally converged algorithm was proved.

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Periodicity and Permanence of LotkaVolteraa Three SpeciesCooperative System with Infinite Delay
GUO Wei, CHENG Rong-Fu
J4. 2010, 48 (06):  893-898. 
Abstract ( 1209 )   PDF (431KB) ( 361 )  

This paper deals with a nonautonomous LotkaVolteraa three species system with three species cooperative and infinite delay. The sufficient condition for the permanence of the system was obtained  by means of  differential equation comparability theorem;   the sufficient condition for the existence of positive periodic solution  of the system was obtained with the aid of  continuation theorem based on coincidence degree theory.

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Trace Formula of Eigenvalues of Subelliptic Laplacian
GU Gao, XIONG Ya
J4. 2010, 48 (06):  899-902. 
Abstract ( 1042 )   PDF (260KB) ( 510 )  

The authors mainly focused their attention on the Riesz means of the eigenvalues of subelliptic Laplacian on the Heisenberg group, established the trace formula of associated eigenvalues, then obtained the corresponding Riesz means. We can use the Riesz means to study discrete spectrum of subelliptic Laplacian on the Heisenberg group, to establish inequalitiy for Riesz means of the eigenvalues of operators and to estimate eigenvalues.

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Hilbert Property and Stability of Generalized Matrix Rings
LIN Yan-Li, WANG Yao
J4. 2010, 48 (06):  903-906. 
Abstract ( 982 )   PDF (240KB) ( 541 )  

For a generalized matrix ring Λ, we showed that Λ is a Hilbert ring(resp.a ring satisfying S-stable range) if and only if R and S are Hilbert rings by means of classical method in ring theory.

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M-Band Subdivision of Cubic Parametric Splineswith Tension Properties
HAN Li-Wen, ZHANG Ting-Ting, JIE Bin
J4. 2010, 48 (06):  907-913. 
Abstract ( 1188 )   PDF (492KB) ( 476 )  

The refinability of a kind of cubic parametric spline curves with tension properties was studied and their M-band refinement equations were obtained, which contain the existing 2-band case, and furthermore, the computation of refiner tension parameters and subdivision masks with different knots were discussed, and the subdivision rules were gained. The computation procedure of 3-band subdivision was introduced in detail and numerical examples were given to illustrate the advantages of approximation.

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Finite Volume Element Method for Hyperbolic Equationon BB Dual Subdivisions
GAN Xiao-Ting, YANG Ying
J4. 2010, 48 (06):  914-920. 
Abstract ( 1330 )   PDF (419KB) ( 460 )  

One semidiscrete and two fully discrete finite volume element methods based on triangulation and BB dual subdivisions were presented for the hyperbolic equations. Here, the two fully discrete schemes were approximated by the GrankNicolson and the Backward Euler schemes respectively. And the optimal H1,L2 norms error estimates for the semidiscrete finite volume
 element scheme were obtained, and the error estimates of the two fully discrete schemes were also obtained.

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Periodic Oscillations of a Delayed Circadian Rhythm Model
PENG Ke-Dun
J4. 2010, 48 (06):  921-925. 
Abstract ( 1371 )   PDF (452KB) ( 476 )  

A delayed circadian rhythm model was studied. By analyzing the roots of transcendental characteristic equation for linear system, periodic oscillations were established. Furthermore, global existence of periodic solutions was obtained with the help of global Hopf bifurcation theory. Finally, numerical examples were reported to confirm our theory.

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Precise Large Deviation of a Class of Risk Model
HU Hua-Beng
J4. 2010, 48 (06):  926-930. 
Abstract ( 854 )   PDF (320KB) ( 382 )  

A perturbed risk model for twotyperisk insurance was investigated. The precise large deviation for the claim surplus
 process of this risk model was obtained by means of some relative theories in analysis and probability theory when the claim process was a nonnegative intervalued process and the distributions of heavytailed claims belonged to the class

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Bayesian Estimation of Parameters in the INAR(1) Model
ZHANG Zhe, ZHANG Hai-Xiang, ZHANG Zhuo-Fei-??20Wang-De-Hui
J4. 2010, 48 (06):  931-935. 
Abstract ( 1068 )   PDF (315KB) ( 540 )  

We studied the parameter estiamtion for the INAR(1) model by Bayes method, compared the Bayes estiamtor with YuleWalker estimator, the conditional least squares estimator, and the maximum likelihood estimator via simulation. The simulation results state that Bayes estimator is better than others in some situation.

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Codimension Estimation and Singularity Type of Smooth Map Germs with Distinguished Parameters Relative to I-P-K Equivalence
HU Jing-Bei, WANG Lei, SUN Wei-Zhi
J4. 2010, 48 (06):  936-940. 
Abstract ( 906 )   PDF (464KB) ( 513 )  
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A New HilbertType Integral Inequality withHomogeneous Kernel of Real NumberDegree
XIE Zi-Chen, YANG Bi-Cheng, CENG Zheng
J4. 2010, 48 (06):  941-945. 
Abstract ( 1097 )   PDF (263KB) ( 618 )  

Estimating the weight function, we gave a new Hilberttype integral inequality with homogeneous kernel real number
degree and a best constant factor. The equivalent inequality and the reverse forms were considered.

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A Vibration Inverse Problem of StarLike Spring Mass System
ZHOU Shuo, YANG Shi-Tong, JIANG Zhen
J4. 2010, 48 (06):  946-949. 
Abstract ( 830 )   PDF (214KB) ( 437 )  

Using the singular value decomposition (SVD) of a matrix the authors studied an  inverse problem of block arrowlike matrices. The necessary and sufficient conditions of the existence of its unique solution and the expressions of the solution were obtained.

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Continuation Theorems for Boundary Value Problems ofSecondOrder Dynamic Equations on Time Scales
LEI Xiu-Shuang, CHANG Xiao-Jun
J4. 2010, 48 (06):  949-950. 
Abstract ( 1223 )   PDF (197KB) ( 467 )  

A continuation theorem for boundary valule problems of dynamic equations on time scales was established. We gave constructive proofs via the homotopy method, thereby leading to a global convergent method of finding solutions.

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Optimal Solvability for PeriodicIntegral Boundary Value Problems
SONG Xin, YANG Xue
J4. 2010, 48 (06):  951-952. 
Abstract ( 991 )   PDF (156KB) ( 537 )  

With the aid of the optimal control theory, we gave an optimal solvability condition on the periodicintegral boundary value problems for second order differential equations.

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A Note on the Law of the Iterated Logarithm for R/S Statistic
FU Ge-Ang
J4. 2010, 48 (06):  953-956. 
Abstract ( 882 )   PDF (261KB) ( 448 )  

By virtue of the general strong approximation theorem, some general laws of the iterated logarithm (LIL) for R(n) and R/S statistic are derived when the variance may be infinite for  a sequence of independent and identically distributed random variables.

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UStatistics Testing Method in Testing the Equality of Two Population Means 
SONG Li-Xin, DIAO Zhi-Wen, CHEN Kun
J4. 2010, 48 (06):  957-960. 
Abstract ( 1334 )   PDF (321KB) ( 488 )  

Under the circumstances that the variance is uncertain, the Ustatistics testing method is proposed for any two populations. Furthermore, we discussed the consistency and asymptotic normality of test statistics and its efficacy.

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Estimates of Blowup Rates for the Solution to a NonlinearDiffusion Equations Coupled by Boundary Sources
HAN Xiao-Yan, WANG Ze-Jia, YANG Yun
J4. 2010, 48 (06):  961-963. 
Abstract ( 977 )   PDF (230KB) ( 536 )  

We considered a class of nonlinear diffusion equations coupled by boundary sources,  obtained the blowup rates via   integral method and some discussions in two cases. Compared with the known results, our results show that the blowup rates of the blowup solutions for the fastly and slowly diffusive systems are the same.

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Existence of Solutions of a Class ofPartial Differential Inclusions
CHENG Yi, CONG Fu-Zhong
J4. 2010, 48 (06):  964-966. 
Abstract ( 1341 )   PDF (218KB) ( 490 )  

This paper deals with the boundary value problems for a class of partial differential inclusions -Δu∈G(x,u). When G(x,u) takes bounded weakly compact convex values,  is measurable about variable x, and is a closed graph about variable u, using the techniques from the KakutaniFan fixed point theory, we have proved the existence theorems of boundary value solutions of the system and the solution sets are weakly compact.

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Polynomial Identities with a Superinvolution on Superalgebras
DU Yi-Qiu
J4. 2010, 48 (06):  967-969. 
Abstract ( 943 )   PDF (250KB) ( 389 )  

We mainly proved that if a superalgebra A with a superinvolution * satisfies a *polynomial identity, then A must be a PIalgebra and also proved that a primitive superalgebra satisfying a polynomial identity must be a simple superalgebra.

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Extended G-KRA Abstraction Model
WANG Nan, OU Yang-Dan-Tong, SUN Shan-Wu, MU Guang-Yu
J4. 2010, 48 (06):  970-974. 
Abstract ( 907 )   PDF (379KB) ( 461 )  

The primary perception process of the generalized knowledge reformulation and abstraction model was extended to multiperception process and multiabstraction models were constructed by identifying the domains that the objects of the physical world W belong to. Furthermore, the domain relations between multiabstraction models Wi and Wj are formally defined from two points of view, i.e., the intersection of their objects sets is empty (there is no such an entity involved in two different domains); there are at least one entity involved in two different domains. The extended GKRA abstraction model enriches the representation of W compared with the model from a single point of view, it percepts W from the multiple one. Knowledge of various domains can be applied to achieving multiabstraction models and the reasoning ability is enhanced.

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Flow Optimization for Distributed Network Based on Petri
YUAN Hua, CHANG Xin, FENG Huan-Li, LI Wen-Hui, HU Liang
J4. 2010, 48 (06):  975-980. 
Abstract ( 867 )   PDF (482KB) ( 387 )  

Petri nets can describe the relationship among entities efficiently, whose dynamic behaviour is suitable for modeling distributed computer network. The repetitive forward problems were solved by modeling distributed network flow optimization based on Petri nets. On the basis, combining mature ways of linear programming could realize multiaim control of network traffic and flow, and improve network performance.

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Graph Partitioning Applied in Singleton Algorithm
DU Hui-Ying, LI Tie-Shan, LI Hong-Bo, CHEN Hai-Jiao
J4. 2010, 48 (06):  981-986. 
Abstract ( 1120 )   PDF (545KB) ( 463 )  

We studied the SACMP algorithm and presented the idea of the application of graph partitioning technology in the SACMP algorithm. The proposed algorithm takes the full advantage of the graph partition technology to determine the value of k in the process of executing, so it can avoid the redundant operations and blindness caused by the uncertainty of the value of k. Thus the algorithm has a better efficiency in solving the constraint satisfaction problem. The result of our experiments shows that our method is very effective and can improve the efficiency of the algorithm.

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Gauss Noise Image Recovering Method Based onDirectional Wavelet Transform
ZHANG Shen, MA Si-Liang, TAN Kun
J4. 2010, 48 (06):  987-994. 
Abstract ( 969 )   PDF (809KB) ( 426 )  

A correlation and threshold denoising method based on the directional wavelet transform was proposed in order to restore the images which were contaminated by the Gaussian noises. The directional wavelet breakthroughs  the restriction of the standard 2D wavelet transforms only along horizontal and vertical directions, can transform along any directions. Not only does it weaken the Gibbs effect, but it can protect image edges.
 The experiment results show our method has better performances than the denoising method based on the standard wavelet in both PSNR and visual effects.

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Design and Development of Project Management Information Systemfor Space Science Experiment Based on Manned Space Platform
DIAO Yun-Xia, GUO Jiong
J4. 2010, 48 (06):  995-1000. 
Abstract ( 801 )   PDF (723KB) ( 441 )  

On the basis of automatic management needs for space science experiment based on manned space platform combined with the feature of .NET
 and Browser/Server structure, the authors summarized the design and development needs and designed a set of hardware and software structure, an application mode and system flow for science experiment project in the .NET environment and developed  project management system for space science experiment so as to integrate and control all kinds of information during the life cycle of space science experiments and make all participants of the project  able to cooperate and coordinate. Thus the purpose of overall optimization of project progress, resources and costs could be achieved.

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Ontology Definition and Ontology Algebra
WANG Dun-Hua, ZUO Mo-Li, HE Feng-Ling, WANG Yang
J4. 2010, 48 (06):  1001-1007. 
Abstract ( 1011 )   PDF (449KB) ( 407 )  

We defined the ontology models accurately with functional description language by analyzing the fruits of researches on ontology definition, and further, proposed a novel method of formal ontology definition, put forward a closed ontology algebra definition by defining the grade of similitude relevance between ontologies, and gave a formal description of ontology algebra with functional description language.

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Researches and Application of Weapon and EquipmentSimulation Model System Framework
LIU Chu-Fen, DIAO Jin-Gong, HU Feng, LI Hao, LI Xiao-Jun
J4. 2010, 48 (06):  1008-1012. 
Abstract ( 847 )   PDF (583KB) ( 418 )  

Study status quo of model system framework at home and abroad was introduced; and then the principle of generality and uniformity used
to guide the establishment of model system framework was proposed. On basis of the  guiding principle, toplevel structure, classification and mutual relation of model system framework which is based on generalpurpose were given. Finally, the method of model development based on the model system framework was given.

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Comparison of ShackHartmann Array Spot CentroidDetection Errors
JING Wen-Bo, DUAN Jin, WANG Xiao-Man, DIAO Sai, XU Hao, JIANG Hui-Lin
J4. 2010, 48 (06):  1013-1017. 
Abstract ( 1353 )   PDF (636KB) ( 543 )  

The centroid detection errors of four methods of centroid detection algorithm about ShackHartmann array spots were compared at the same SNR, during which not only the centroid detection error but also the velocity of detection was taken into account. The experiment results indicate that IWCa has less detection error (CEE<0.5) although the SNR is lower than 5 and the velocity is also great. In consideration of  centroid detection error and detection rate, centroid detection accuracy and rapidity were effectively improved.

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Decoherence Phenomena of Macromolecules |Double-Slit Diffraction
DIAO Shu-Hua, Liu-Xiao-Jing, TUN Xi-Heng, WANG Yan, Wang-Qing-Cai, CHEN Mo-Jin, Zhang-Bing-Xin, YIN Xin-Guo
J4. 2010, 48 (06):  1018-1022. 
Abstract ( 1403 )   PDF (376KB) ( 514 )  

The authors quantitatively analyzed the data of C60 molecular double\|slit diffraction by quantum theory, and obtained the expression of double-slit diffraction intensity,  the diffraction intensity was revised  by means of decoherence effect. The calculation results are in good agreement with experiment data.

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Classical Theoretical on |Two-Dimensional Hydrogen Molecular Ion (HD+) in Intense Laser Fields
CHEN Yan-Qun, GUO Jing, LIU Hua-Shen
J4. 2010, 48 (06):  1023-1026. 
Abstract ( 964 )   PDF (427KB) ( 439 )  

The symplectic method of classical theory was used to solve numerically the Hamilton canonical equations of the 2D planar HD+ in intense laser fields, and   obtained  the  classical trajectories of the 2D planar HD+ in the laser fields, the probabilities of survival  ionization, dissociation,   Coulomb explosion  and the average distances from electron to the mass-center for various laser parameters as functions of time were investigated. We analyzed  intensity dependence on the dynamics of HD+ in the monochromatic laser fields and compared our results with the corresponding H+2 calculations and gave the corresponding physical explanations.

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Perparation and FTIR Spectra of B-C-N Films via Different Targets
WANG Jian, BAI Yi-Zhen, ZHANG Dong, BO Li, LIU Gao, GUAN Chang-Yu, TUN Tie-Ling, DIAO Ji-Jun
J4. 2010, 48 (06):  1027-1030. 
Abstract ( 1059 )   PDF (359KB) ( 540 )  

Boron-carbon-nitrogen (B-C-N) films were deposited by means of radio frequency (RF) magnetron sputtering from different targets,  which were hexagonal boron nitride, boron and graphite targets in the atmosphere of nitrogen and argon. The results of FTIR spectra indicate that there were two wide absorption bands at  1 200~1 800 cm-1 and 1 000~1 750 cm-1 separately,  and there existed characteristic absorption peak of  bond at 2 200 cm-1. That is to say, C atom and N atom were combined in the deposited films. Graphite and h-BN targets were sputtered respectively, the results of FTIR spectra reveal that the absorption at  1 100 cm-1 was not due to the stretching B—C bond, B-C-N films were deposited from h-BN  and C targets  inclined to phase separation,  and there was hybridization of atomic level in the deposited B-C-N films via B and C targets. 

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Structure and Magnetic Properties of Ag/FePt/C Thin Films
ZHANG Yu-Mei, LIU Mei, WANG Yong-Gong, CHEN Wei-Xia, LI Hai-Bei-
J4. 2010, 48 (06):  1031-1033. 
Abstract ( 1243 )   PDF (359KB) ( 490 )  

An Ag/FePt/C thin film was deposited on Si (001) substrate by direct current and radio frequency magnetron sputtering at room temperature, then the as-deposited film was vacuum annealed at various temperatures so as to obtain L10-FePt thin film with high coercivity. The composition, structure and magnetic properties of the film were investigated by means of  X-ray fluorescence, X-ray diffraction and  vibrating sample magnetometer. The results indicate that disordered to ordered phase transformation took place when the film was annealed at 400 ℃. Ag underlayer could reduce the FePt ordering temperature.  The grain size could be controlled by adding Ag and C elements. The grain size and coercivity increased with  increasing  annealing temperature. The average grain size of FePt in the thin film annealed at 600 ℃ is 14 nm, the out\|of\|plane and in\|plane coercivities are 798.16 kA/m and 762.35 kA/m,  respectively.

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Performance of MeMCP as Cathodic Catalyst inDirect Methanol Fuel Cell
YIN Wei, CHEN Chang-Guo, FA Huan-Bao, CI Yu-Jun
J4. 2010, 48 (06):  1034-1038. 
Abstract ( 908 )   PDF (453KB) ( 419 )  

Carbonsupported CoMCP,FeMCP,MnMCP,CuMCP,NiMCP as cathodic catalyst were prepared. And the performance of MeMCP electrocatalysts was investigated by linear sweep vol\|tammetry(LSV). The electrochemical measurements demonstrate that MeMCP catalysts have good catalytic activity. The initial potential of MnMCP is 0.513 V, which has better catalytic performance. However, the initial potential of NiMCP is 0.198 V, which is the lowest among the five central metal catalysts. DMFC test shows that CoMCP,FeMCP,CuMCP and NiMCP have good catalytic performance in the DMFC.

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Photovoltage Properties of a New Type of Porous TiO2
LI Hong-Ban, WEI Xiao, JIN Qiang-Wei, WANG Kai-Hua, CHEN Cha-Qing
J4. 2010, 48 (06):  1039-1042. 
Abstract ( 959 )   PDF (428KB) ( 632 )  

The photovoltage properties of a new type of porous TiO2 (P-TiO2) were investigated through surface photovoltage spectroscopy (SPS) and field induced surface photovoltage spectroscopy (FISPS). The abundant surface states, which were related to the special porous structure, extended the SPS response band of P-TiO2 to visible light region (500 nm), and made the intensity of surface state transition equal to that of bandband transition. When an external electric field was added, the changes in the intensity of surface state transition were not so obvious compared with that of bandband transition. These results exhibit strong “localized effect”, induced by the surface states.

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Preparation of S(+)3-Methyl-1-(2-(1-piperidinyl)phenyl)butylamine through Enzymatic Catalysis
DIAO Shuang, YANG Li-Juan, TUN Jia-Zhen, LIN Fan, FANG Hua-Xun, WANG En-Sai
J4. 2010, 48 (06):  1043-1046. 
Abstract ( 1086 )   PDF (395KB) ( 484 )  

With lipase Novozym435 as catalyst, ethyl acetate as solvent as well as acyl donor, the crucial intermediatesS(+)3-methyl-1-(2-(1-piperidinyl)phenyl) butylamine of Repaglinide was synthesized enzymatically with a total yield of 17%. Compared with chemical catalysts, the enzymatic resolution method has higher enantioselectivity, regioselectivity and substrate specificity. The synthetic route is easy to operate under a moderate condition with less secondary reaction. Enzyme can be reutilized after activation, which reduces cost, and thus applied to industrial production.

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Catalysis Mechanism for Hydrogenation of Coal SlimePyrolysis over Ag/γ-Al2O3 Catalysts
ZHANG Lei, SHU Xin-Jian
J4. 2010, 48 (06):  1047-1051. 
Abstract ( 840 )   PDF (632KB) ( 535 )  

The influence of Ag loading on the activity of Ag/γ-Al2O3 catalyst with variable Ag loading prepared by equivalent volume impregnation method to catalyze the hydrogenation of coal slime was investigated. The structure of the catalyst was analyzed by XRD, TPR, XPS and SEM. Experiment shows that there is little difference in the catalytic activities of Ag/γ-Al2O3 with varying Ag loading in a range of 600~900 ℃. However, when Ag loading was 5%, the activity of Ag/γ-Al2O3 increased in a range of 900~1 100 ℃. The XRD and SEM analyses show that when Ag loading in Ag/γ-Al2O3 was 5%, the Ag loading species were well dispersed in the carrier. The investigations of H2-TPR show that the reduction peak of 5% Ag/γ-Al2O3 did not exist; the results indicate that 5% Ag/γ-Al2O3 has been completely reduced to elemental sliver.

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Hydrothermal Synthesis, Structure Characterization andFluorescence Property of a New Layered Vanadium Selenite
SUN Yang-Hua
J4. 2010, 48 (06):  1052-1056. 
Abstract ( 1057 )   PDF (531KB) ( 417 )  

A new layered vanadium selenite (2,2′-bipy)(H2O)V2SeO7 was prepared under hydrothermal conditions, and characterized by elemental analysis, IR and single crystal X-ray diffraction analysis.The  compound crystallized in a triclinic system, P1 space group, a=0.842 93(2) nm,
b=0.928 67(3) nm, c=0.970 95(2) nm, α=97.037(2)°, β=110.806(2)°, γ=98.385 (2)°, V=0.690 3(3) nm3, Z=2, R1=0.022 5, wR2=0.069 3. The  compound, (2,2′-bipy)(H2O)V2SeO7, has a layered structure constructed from eight membered rings 
{V6Se2O25}, six membered rings {V4Se2O19}, four membered rings {V2Se2O13} that were arranged alternately, and then extended into three dimensional supramolecular array through π-π stacking contacts of 2,2′-bipyridine molecules. The fluorescence spectrum shows that the title compound exhibits blue emission in the solid state at room temperature.

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Determination and Analysis of Trace Elements inStudents&rsquo|Hair of Jilin University by ICPAES
GAO Yan-Song, PENG Chang-Fu, WANG Xiang-Quan, DONG Xin-Wei, XU Shuang-Jiang, SHI Tong-Shun
J4. 2010, 48 (06):  1057-1060. 
Abstract ( 968 )   PDF (376KB) ( 415 )  

The concentrations of Mn,Zn,Cu,Fe and Ca in human hair samples of 120 schoolboys and schoolgirls of Jilin University were determinated
by inductively coupled plasmaatomic emission spectrometry. The data were analyzed with SPSS10.0 via a nonparametric test. Results were statistically compared. The concentrations of Cu and Zn were in the normal range and the concentration of Fe had a higher value in the schoolgirls and schoolboys than the reference value. The concentration of Ca was close to the normal value in the schoolboys. The concentrations of Ca in the schoolboys and Mn in the schoolboys and schoolgirls were lower than the reference values. The significantly difference was obtained in the statistical point of view for the concentrations of Cu, Zn and Ca in the schoolgirls and schoolboys and the concentrations of Mn and Cu in the freshmen and sophomore schoolgirls.

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Effect of Trantinterol on Cytochrome P450 Enzymes
SUN Yan-Tong, GAO Feng, ZHANG Meng-Liang, CUI Xiang-Yong, WANG Zhong-Hua, GU Jing-Kai
J4. 2010, 48 (06):  1061-1064. 
Abstract ( 870 )   PDF (376KB) ( 473 )  

To study the effect of trantinterol on cytochrome P450 (CYP450) in rat liver microsomes, rats were given single daily oral doses of trantinterol or saline for one week. Liver microsomes were prepared and the effects of treatment on the total CYP450 content and the activities of CYP1A2, CYP2D6, and CYP3A4 were determined. The latter employed phenacetin, debrisoquine and midazolam respectively as probe substrates. The results indicate that the level of total CYP450 and the activities of CYP1A2, CYP2D6, and CYP3A4 in rat liver microsomes were unchanged after  treatment by trantinterol (P>0.05). Chronic oral administration of trantinterol did not lead to the induction of the representative enzymes of the main drug metabolizing CYP450 subfamilies.

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Prokaryotic Expression, Purication and Properties of a Proteasefrom Thermophilic Archaeon Pyrococcus horikoshii OT3
DAN Dong-Ling, BAI Ai-Xi, BAI He, HAN Wei-Wei, FENG Yan
J4. 2010, 48 (06):  1065-1069. 
Abstract ( 965 )   PDF (569KB) ( 426 )  

Gene PH1704 from an archeaon Pyrococcus horikoshii OT3 was cloned and expressed at high levels in E.coli BLPCodonPlus. The recomb
inant enzyme was purified to homogeneity via ultransonic, heating and HiTrap Q Sepharose chromatography. Through SDSPAGE, NativePAGE, activitystaining and westernblotting, the protease was identified as homooligomers with dodecamer being the major polymer, and showed resistance to SDS. The enzyme was characterized for azogelation, its optimum temperature and pH were 85 ℃ and 8.0, respectively. The enzyme had a favourable heat resistance.

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Analysis of the Bacterial Communities in Mud Volcano Soilsin Xinjiang via DGGE
LI Jian-Hui, LU Fen-Fen, ZHANG E-Beng
J4. 2010, 48 (06):  1070. 
Abstract ( 1033 )   PDF (538KB) ( 632 )  

16S rDNA V3 fragmentbase was separated by DGGE (denaturing gradient gel electrophoresis) and clone sequence BLAST technologies, and quantity one software was used to map the cluster analysis. The fingerprint shows that the compositions of bacteria in all the soil samples are obvriously different. The cluster analysis indicates that the structures of bacteria in the same month of soil samples in different depths are similar to each other. Specific band sequencing results show that the Pseudomonas sp is the dominant microorganisms in mud volcanic soils. The bacterial polymorphism in mud volcano soil in Xinjiang is significant, and this diversity is vulnerable to ecological, climatic and other factors, however, these factors affect the dominant microorganisms little.

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