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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 2005, Volume 43 Issue 06
Interpolation Problems on Algebraic Manifolds
DONG Tian, ZHANG Shu-gong, FENG Guo-chen
J4. 2005, 43 (06):  707-715. 
Abstract ( 1160 )   PDF (761KB) ( 455 )  
Constructive algebraic geometry methods were used to discuss multivariate interpolation problems for which the interpolation nodes are taken from one algebraic manifold and the related theories and algorithms for constructing minimal degree interpolation basis were presented. An estimation for the degree of interpolation polynomial was also presented.
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A Functional Central Limit Theorem for the Random Sum of Linear Process of Martingale Differences
HAN Yu, YANG Xiao-yun, DONG Zhi-shan
J4. 2005, 43 (06):  716-724. 
Abstract ( 1471 )   PDF (391KB) ( 317 )  
Under some nonstationary conditions, it is proved that all the finite dimensional distributions of the stochastic process {ξn(t); 0≤t≤1} weakly converge to the finite dimensional distribution of the Wiener measure under the conditional probability measure PB(·). At last, it is proved that the process {ξνn(u);0≤u≤1} weakly converges to the Wiener measure, where {νn;n∈N} is a sequence of positive integer-valued random variables statisfying some conditions.
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A Parallel Finite Difference Scheme for Fourth Order Parabolic Equations
LIU Shengli, ZHANG Ye, XU Shi-ju, MA Fu-ming
J4. 2005, 43 (06):  725-730. 
Abstract ( 1358 )   PDF (364KB) ( 352 )  
The present paper presents a parallel finite difference scheme for fourth order parabolic equations. By means of nonsymmetric difference schemes, we split up the space domain into several subdomains for which the solutions can be separately found and the computations can be made in parallel. Furthermore, we constructed group explicit (GE) method, alternating group explicit (AGE) method and alternating section explicit-implicit (ASE-I) method. The last two methods are unconditionally stable. The numerical results show that our methods have good accuracy.
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Lattice Boltzmann Model with the BiDistribution Functions for the Votercurrent System
LIU Yanhong, YAN Guang-wu, WANG Wei-ming
J4. 2005, 43 (06):  731-734. 
Abstract ( 1279 )   PDF (205KB) ( 390 )  
A lattice Boltzmann model was proposed for the eddy-stream system in the incompressible flows. Using two distribution functions to define the vortices and stream function, we obtained two lattice Boltzmann equations to build this model. Our equilibrium distribution function is simpler than the ones in the standard lattice Boltzmann model. As a numerical example, we obtained a good cavity flow pattern.
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(U+K)-Orbit Closure of Univalent Operator and Its Putnam Theorem
ZHANG Min, JI You-qing
J4. 2005, 43 (06):  735-740. 
Abstract ( 1248 )   PDF (437KB) ( 320 )  
A notion referring to the univalent operator was proposed via considering a class of the analytic Toeplitz operators. Then we characterized the (U+K)-orbit closure of univalent operator and gave its (U+K)-invariant. In the end we got Putnam theorem of this kind of operators.
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Some Notes on the Positive Solutions for a Class of Quasilinear Elliptic Equations with Degeneracy and Singularity
YUAN Hong-jun, CHEN Ming-tao
J4. 2005, 43 (06):  741-745. 
Abstract ( 1608 )   PDF (250KB) ( 363 )  
Positive solutions of quasilinear elliptic equations with degeneracy and singularity for a class of p-Laplace problems are discussed. For one dimension, the conditions of boundless solutions are given. And for multi-dimension the conditions of the problems with sufficiently regular and star-shaped domain are also given, which have no solutions in Sobolev space. The techniques including functional transformation were used to overcome the difficulties coming from the degeneracy and singularity of the problems. A further complementarity of the equations for p≠2 is given, too.
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A Approach for Representing Ontology Modeling Language OIL in RDFS
FU Yan-ning, LIU Lei
J4. 2005, 43 (06):  746-750. 
Abstract ( 1248 )   PDF (191KB) ( 347 )  
This paper shows how Resource Description Framework (RDF) Schema can be extended in order to express a full knowledge representation language OIL. By enriching Resource Description Framework Schema (RDFS) with the required additional expressive power and semantics of this language, ontology modeling language OIL can be described in it. The result of representing ontology modeling language OIL in RDFS is that any OIL ontology can be represented in RDF syntax, making it possessing reasoning support and formal semantics of OIL. The method of definition is equally applicable to other knowledge represent formalisms.
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Automatic Generation of Semantic Parser for Extended Grammar
WANG Sheng-jun, GUO De-gui, JIN Cheng-zhi
J4. 2005, 43 (06):  751-756. 
Abstract ( 1311 )   PDF (291KB) ( 341 )  
On the basis of Earley parsing extended grammars, this paper gives an automatic generation algorithm of a semantic parser for EBNF. Given an extended grammar with embedded semantic routines and an input string, the algorithm outputs the corresponding semantic parser. With the execution of these semantic routines, some work such as type checking, intermediate code generation and optimization can be done, which makes the parsing algorithm
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Simulation and Improvement of Probabilistic Packet Marking Schemes by Means of ns2
LI Qiang, ZHU Hong-zi, JU Jiu-bin
J4. 2005, 43 (06):  757-762. 
Abstract ( 1403 )   PDF (351KB) ( 341 )  
The most promising probabilistic packet marking (PPM) schemes were evaluated based on the basis of the received packet number required for reconstructing the attacking path, computation complexity and false positive etc. We construct a simulation environment via extending ns2, setting attacking topology and traffic, which can be used to evaluate and compare the effectiveness of different PPM schemes. The simulation approach can also be used to test the performing effects of different PPM schemes in large-scale DDoS attacks. Based on the evaluation and simulation results, several improvable aspects of PPM are proposed, which can increase real-time of IP traceback efficiently.
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Implementing Data Aware Scheduling on Gfarm by Using LSF TM Scheduler Plugin
WEI Xiao-hui, Li Wilfred, XU Gao-chao, HU Liang , JU Jiubin
J4. 2005, 43 (06):  763-767. 
Abstract ( 1699 )   PDF (265KB) ( 380 )  
This paper describes the implementation of data aware scheduling and data management on Gfarm by using LSF scheduler plugin mechanism. The new plugin module is easy to realize and flexible to be added new features. Moreover, it can co-work with other scheduling polices in the system.
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Fast Frequent Sequential Pattern Mining Algorithm
GUAN En-zheng, CHANG Xiao-yu, WANG Zhe, ZHOU Chun-guang
J4. 2005, 43 (06):  768-772. 
Abstract ( 1568 )   PDF (420KB) ( 330 )  
A novel algorithm FFSPAN (fast frequent sequential pattern mining algorithm) is proposed to solve the problem that the computational complexity may become very high when mining long patterns in a sequence database. Traditionally, to judge whether a sub-sequence is frequent in a database, one need to compare the whole sub-sequence with every sequence in the original database, however the algorithm FFSPAN succeeds in solving the problem that in a sequence database, instead of searching a whole frequent sequence, we only need to search a frequent item or a frequent itemset. Moreover, the databases scanned via FFSPAN keep shrinking, which makes the algorithm more efficient when the sequential patterns are longer. Experiments on standard test data show that FFSPAN is very effective.
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Design and Implementation of Product Modeler
REN Jian, LI Zhan-shan, WANG Song, KOU Fei-hong, SUN Ji-gui
J4. 2005, 43 (06):  773-780. 
Abstract ( 1088 )   PDF (484KB) ( 312 )  
A knowledge-based product configurator system, an important application of Artificial Intelligence techniques, was discussed. From analyzing the product configuration in mass customization, two definitions of general product structure and general-product-structure constraint were introduced, and a general product structure model was built. Based on the model and popular network and database techniques such as Java, eXtensible Markup Language (XML) and Structured Query Language (SQL) Server, we designed and implemented a product modeler, which realizes general configuration knowledge representation for a variety of products.
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Evaluation Methodology of C3I Information Fusion Based on Rough Set Theory
LIU Yun-xiang, LIN Jia-jun, OUYANG Dan-tong
J4. 2005, 43 (06):  781-786. 
Abstract ( 1240 )   PDF (447KB) ( 266 )  
The theories and methods of performance evaluation for multi-sensor data fusion system based on rough set theory were discussed. A information fusion performance criterion system was founded with C3I application as background. The evaluation process is similar to the decision process, the general way of integration system evaluation and the algorithm of assigning the weights to condition attributes with rough set are presented, and the method of dealing with information with missing data is given, too. In the meantime, a framework is presented for performance test and the evaluation of multi-sensor data fusion. Finally, the algorithm of information fusion and the choice of parameters can be directed by using software, and experimental results have revealed the efficiency of the method.
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Fast Packet Classification Algorithm Based on Hash Table
LI Bin, LIU Shu-yuan, LIU Yan-heng
J4. 2005, 43 (06):  787-793. 
Abstract ( 1247 )   PDF (393KB) ( 286 )  
The recent advance in the research of packet classification was surveyed, and a hash table based rule matching algorithm was given. The time complexity of the algorithm was O(1). Through the analyses of the related problem of rule table, the rule table is separated into two sub groups. The unrelated group is constructed into a hash table which improves the matching speed. Experiments show that the throughput is improved about 10%. Another problem, the rule conflict, was proved and a conflict detection algorithm was given.
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Prediction Strategies of Performance of Grid Application Program
HU Liang, CHE Xi-long, TANG Kuo
J4. 2005, 43 (06):  794-798. 
Abstract ( 1283 )   PDF (305KB) ( 281 )  
Performance evaluation of several main strategies was made via the analysis of the prediction strategies of grid application performance information, combined with historical information method, a correctional model of grid application performance prediction was proposed based on the prediction strategy of turning resource prediction into application prediction. The model of application performance prediction is the base for the scheduling system in dynamic grids environment; it makes the utilization of the grid resource more suitable and improves the executing performance of application program.
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The Influence of π- Meson Condensation on Neutron Star Matter
WANG Hong-yan, BAO Tmurbagan, JIANG Hong-mei, LIU Guang-zhou
J4. 2005, 43 (06):  799-802. 
Abstract ( 1597 )   PDF (320KB) ( 406 )  
In the theoretical framework of the relativistic mean field, the influences of π- meson condensate on the equation of state and the particle fractions of neutron star matter including delta isobars are studied. The numerical analysis shows that the existence of π- meson condensate has an obvious influence on the particle fractions of neutron star matter. It makes the appearance of Δ-’s postponed and the appearance of Δ+’s advanced. π- meson condensate influences weakly the equation of state of neutron star matter and it can soften the equation of state slightly. However, the tendency to make the equation of state soften is of importance.
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Influence of Squirt Flow on Guided Waves in a Borehole
CUI Zhi-wen, LIU Jin-xia, WANG Ke-xie
J4. 2005, 43 (06):  803-808. 
Abstract ( 1362 )   PDF (473KB) ( 360 )  
The reservoir was modeled by homogeneous two-phase media based on BISQ model, and the effects of the squirt flow on the fundamental guided waves propagating in a borehole embedded in saturated porous media excited by monopole, dipole and quadrupole point sources were studied. The curves of velocity dispersion, attenuation coefficients and excitation curves of the fundamental guided waves show that the velocity dispersions are almost independent of the characteristic squirt flow length, the attenuations of guided waves are enhanced due to the squirt flow, and excitations of guided waves are decreased due to the squirt flow.
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Application of 1+3 Quasiparticle-vibration Coupling Model to 11Be
GAO Li-li, ZENG Guo-mo
J4. 2005, 43 (06):  809-812. 
Abstract ( 1488 )   PDF (300KB) ( 386 )  
The low-lying excitation spectra of 11Be was calculated on the basis of 1+3 quasiparticle-vibration coupling model.Experimentally observed 4 MeV excited state of 11Be has been reprouduced, and the results are in good agreement with experiments. The calculation result shows that some of the low-lying excited levels of 11Be are caused by coupling of 1+3 quasiparticles with even-even vibrating core 8Be. The halo structure of 11Be is also explained reasonably.
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Third-order Optical Nonlinearities of a Series of Hydroxylphenyl Porphyrins
LI Xin-guo, PEI Song-hao, WANG Fu-xiang, PENG Wei-xian, SHI Ying-yan, WANG Xing-qiao, SONG Ying-lin
J4. 2005, 43 (06):  813-817. 
Abstract ( 1459 )   PDF (329KB) ( 368 )  
The nonlinear refraction indices n2 and the reverse saturation absorption (RSA) coefficients β of a series of hydroxylphenyl porphyrins were measured by means of single beam Z-scan technique with a 8 ns laser pulse at 532 nm from which third-order nonlinear susceptibilities χ(3) of the samples were calculated. The hydroxylphenyl porphyrins have a large value of the reverse saturation absorption and a large cubic nonlinear refractivity. The effects of molecular structures on the third-order nonlinear optical properties were discussed. The experimental results show that the effects of different numbers and different positions of the substituents on the nonlinear refractivity of the porphyrins are evident.
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Fluorescence Spectra of Er3+ ∶YAG under Ultraviolet Laser Excitation
SUN Gui-juan, SHI Tao, DAI Zhen-wen
J4. 2005, 43 (06):  818-821. 
Abstract ( 973 )   PDF (332KB) ( 320 )  
By means of time-resolved laser-induced fluorescence spectroscopic technique, two samples of Er3+ ∶YAG with 10.5% and 8.4% (molecular fraction) concentrations were resonantly excited with ultraviolet lasers at 262 nm and 276 nm, and the fluorescence spectra were recorded and the peak transitions were assigned in detail. The corresponding radiative transition probabilities were calculated via Judd-Oflet theory. It has been found that the experimental fluorescence intensity ratio and the theoretical radiative transition probability ratio are in good agreement.
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Magnetocrystalline Anisotropy of (Nd1-xErx)3Fe27.31Ti1.69 Compounds
WANG Wen-quan, ZHOU Hang, XU Shi-feng, XU Qin-ying, XING Bing-bing
J4. 2005, 43 (06):  822-824. 
Abstract ( 1274 )   PDF (259KB) ( 379 )  
Magnetocrystalline anisotropies of (Nd1-xErx)3Fe27.31Ti1.69 compounds were investigated by means of X-ray diffraction and VSM and magnetic measurements. All the compounds with χ in a range of 0~0.5 crystallize in Nd3(Fe,Ti)29-type structure. As temperature decreases from room temperature to 5 K, a spin reorientation from the easy plane to the easy cone occurs for (Nd1-xErx)3Fe27.31Ti1.69 compounds.
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Effects of Treating Solution Concentration on Growth Rate and Microhardness of MAO Coatings on Aluminum Alloy
YU Feng-rong, WU Han-hua, LONG Bei-yu, WANG Nai-dan, BI Dong-mei, YU Song-nan
J4. 2005, 43 (06):  825-829. 
Abstract ( 1741 )   PDF (548KB) ( 311 )  
The effects of treating solution concentration on the microstructure, growth rate, and microhardness of Al-alloy MAO coatings, which were prepared in individual Na2SiO3, NaAlO2, and (NaPO3)6 solutions, were studied, respectively. The experimental results show that (1) the coating consists of the superficial porous layer and the interior compact layer, the coating microstructure is closely related to the treating solution category while the effect of the treating solution concentration on it is unobvious; and (2) the coating growth rate and microhardness increase gradually with the increased treating solution concentration when the concentration is less than 8 g/L, but both the growth rate and the microhardness are fluctuating with the increased solution concentration when the concentration is more than 8 g/L. This phenomenon accords with Albella’s discharge model of impurity center.
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Characterization and Ethane Ammoxidation Property of Cobalt Ion-exchanged H-and Na-Form ZSM-5 Zeolites
PAN Wei-cheng, HUANG Qing-yu, LIAN Hong-lei, JIA Ming-jun, ZHANG Wen-xiang
J4. 2005, 43 (06):  830-834. 
Abstract ( 1401 )   PDF (311KB) ( 401 )  
Various Co-HZSM-5 and Co-NaZSM-5 zeolites, prepared by means of liquid-phase ion-exchange method, were characterized by means of NH3-TPD, IR, UV-Vis and H2-TPR for studying the relationship between the acid-base or redox properties and the catalytic ammoxidation performance of ethane. For both types of Na- and H-ZSM-5, the introduction of Co2+ cations results in the formation of two new types of Lewis acid sites. The presence of co-cations (i.e. H+ and Na+) has a great effect on the redox properties of Co2+ ions, thus influencing the catalytic activity and selectivity for the reaction of ethane ammoxidation.
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Preparation of Porous Carbon with High Specific Surface Area from Rice Husk via Sodium Hydroxide Activation
ZHANG Hui, LIU Yan-hua, ZHOU Bing, DENG Yan-hui, WANG Zi-chen, GUO Yu-peng
J4. 2005, 43 (06):  835-838. 
Abstract ( 1280 )   PDF (271KB) ( 354 )  
This paper supplied a method to prepare rice husk based high specific surface area porous carbon with sodium hydroxide as activating agent. The mechanism and the effects of preparation parameters on the properties of the porous carbon were studied. The specific surface area of the carbon with a narrow pore size distribution is more than 2 500 m2/g. The properties of the porous carbons could be controlled by changing the reaction conditions.
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Synthesis of SiO2 Nanotubes Templated with Viologenbased Organogel
SU Li-hong, XUE Peng-chong, ZHANG Ping, LU Ran, SHI Tong-shun, ZHAO Ying-ying
J4. 2005, 43 (06):  839-841. 
Abstract ( 1538 )   PDF (264KB) ( 304 )  
SiO2 nanotubes with different inner diameters were synthesized by using a novel viologen-based organogel as the template. It was found that the content of the silica oligomer produced from the hydrolytes of TEOS had effect on the aggregation of the organogel fibers, which would result in the formation of SiO2 nanotubes with various morphologies.
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Preparation of Polylactic Acid Microspheres
LI De-guan, JIANG Dan, JIANG Yun-lei, ZHUANG Jiang-xing, LIU Cheng-bai, LIU Li-dong, CHEN Xia
J4. 2005, 43 (06):  842-846. 
Abstract ( 1269 )   PDF (333KB) ( 467 )  
Polylactic acid(PLA) microspheres were prepared by conventional solvent evaporation method using polyvinyl alcohol(PVA)/arabic gum(AG) as the modifier. In order to gain the best parameters for preparing microspheres with homogeneous size, the influences of different factors on average diameter of microspheres were evaluated by orthogonal-designing method. Five factors with four levels were considered in the experiment, which were different modifier, organic solution, PLA concentration, surfactant and agitating rates. The micromeritics characteristics of PLA microspheres were also evaluated. The result shows that the microspheres we prepared have relatively uniform diameter, the optimum even diameters is about 2.0~3.0 μm, and the surface of the microspheres is smooth.
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Mitochondrial DNA Analysis of Human Remains Found in Yinniugou Cemetery
WANG Hai-jing, CHANG E, GE Bin-wen, ZHANG Quan-chao, ZHOU Hui, ZHU Hong
J4. 2005, 43 (06):  847-852. 
Abstract ( 1671 )   PDF (452KB) ( 591 )  
We studied ancient individuals buried in the Yinniugou cemetery of Inner Mongolia by molecular biological methods. We obtained five sequences of the hypervariable region Ⅰ (HVS-Ⅰ) of the mitochondrial DNA (mtDNA) control region and primarily assigned the sequences into haplogroups A,B,D,C or Z, respectively. A phylogenetic tree and a two-dimensional MDS plot were constructed based on pairwise FST values (calculated from mtDNA HVS-Ⅰ sequence data) between the Yinniugou population and 16 relative modern populations. The results show the affinity of the ancient population with eastern Asian populations in matrilineal lineage.
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Lipase-catalyzed Soybean Oil Hydrolysis Monitored via Acid Number Detection
GAO Gui, ZHENG Liang-yu, HAN Si-ping, ZHANG Zuo-ming, LI Shi-jun, CAO Shu-gui
J4. 2005, 43 (06):  853-857. 
Abstract ( 1449 )   PDF (290KB) ( 377 )  
Hydrolysis of soybean oil catalyzed by lipase from Candida lipalytica was investigated. The relative concentrations of the components in the hydrolysate were determined by means of HPLC, furthermore, a new rapid method to monitor soybean oil hydrolytic process was developed based on the relationship between the acid number and the relative concentration of the various components in the hydrolysate.
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Immobilization of Papain in Mesoporous Material via Freezing-vacuum Adsorption Method
GAO , ZHU Guang-shan, FU Xue-qi, WEI Yu-hong, XU Zhi-han, QIU Shi-lun
J4. 2005, 43 (06):  858-862. 
Abstract ( 1855 )   PDF (374KB) ( 387 )  
Freezing-vacuum adsorption was employed in the immobilization of enzyme in mesoporous material SBA-15. The results indicate that this method can guarantee a large amount of loading about 450 mg/g support, which is incomparable for other means. As long as vacuum degree is properly controlled, the enzymatic activity can be retained. This method provides a new solution for the immobilization of enzyme.
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Biodistribution of Quantum Dots in Rats
YANG Rui, JI Wei, YAN Yu-xi, FEI Qiang, MU Ying, JIN Qin-han
J4. 2005, 43 (06):  863-866. 
Abstract ( 1378 )   PDF (379KB) ( 319 )  
The biological distribution of CdTe nanocrystals in a rat was studied by means of bioanalysis and some laws were obtained. The experiment results indicate that quantum dots are transported by blood circulatory system to liver and spleen, and can be observed in these organs within 24 h which emission wavelength has a red shift. With the time passing, quantum dots distributed in the two organs get less and less till disappearing. By using quantum dots as a tagging to study the transportation, distribution and metabolizing of nanoparticles, the operation is very simple and safe, and the results got directly.
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Adsorption Characteristics of Pb and Cd onto Suspended Particulate Matter
ZHANG Bo-tao, DONG De-ming, YANG Fan, ZHANG Wei, HUA Xiu-yi
J4. 2005, 43 (06):  867-872. 
Abstract ( 1064 )   PDF (307KB) ( 311 )  
Adsorption of Pb and Cd onto suspended particulate matter, which was obtained from the Nanhu Lake by filtrating with the membrane filter of 0.45 μm, was investigated. The results indicate that the adsorption of Pb onto suspended particulate matter is greater and faster than that of Cd. The adsorption amount of Cd and Pb onto suspended particulate matter increases linearly with the weight of suspended particulate matter. The adsorption amount of Cd onto suspended particulate matter increases with the growth of pH, but the adsorption amount of Pb onto suspended particulate matter increases dramatically when pH is no more than 6.25, and then drops quickly when pH is above 6.25. The results of adsorption experiments of Pb and Cd at different ionic intensities show the possible coexistence of electrostatic adsorption and specific adsorption of Pb and Cd onto suspended particulate matter.
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Screen of Bacteria High-effectively Degrading Bisphenol A and Its Degradation Characteristics
FANG Fang, ZHANG Lan-ying, YANG Xue-mei, ZHANG Yu-ling, LIU Xiu, SONG Ying
J4. 2005, 43 (06):  873-876. 
Abstract ( 1395 )   PDF (298KB) ( 418 )  
Bisphenol A (BPA) is an environmental hormone polluting widely. The bacterial strains degrading BPA were isolated from its deeply polluted soil. By acclimation, their capacities for the degradation of BPA were enhanced. The strain that had the best degradation capacity was selected. It was identified as short bacillus according to its morphological character. By tests in shaking flasks, the effects of the conditions of the growth were studied, and the optimum conditions of the growth of the strain were: pH=4, NH4Cl=4.12 mg/L, KH2PO4=0.946 4 mg/L, the best bacterial addition amount was 5%, the degraded ratio of BPA reached 71.79% after degradation for 8 days at concentration of 50 mg/L in solution.
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Effect of Aeration on Heavy Metals Cu,Pb,Zn and Cd Release from River Sediment
LU Yong-zheng, DONG De-ming, SHEN Xiu-e, LIU Liang, LI Ying
J4. 2005, 43 (06):  877-881. 
Abstract ( 1403 )   PDF (346KB) ( 332 )  
Effect of aeration on the release of Cu,Pb,Zn and Cd from the sediment of the Yitong River in Changchun was studied by simulation experiment, and the morphological changes of the heavy metals before and after aeration in sediment were analyzed too. The results show that the solubilisation kinetics of Cu,Pb,Zn and Cd differ from one metal to another, Zn release is more slowly than those of Pb and Cd, and the concentration of Cu in solution changes slightly. The re-adsorption or co-precipitation processes of Pb and Zn occur after a period of aeration. The concentration peaks of the heavy metals in the solutions appeare more rapidly, which means that the sediment has more ecological risks. The heavy metals in the sediment change from more stable forms to those easily assimilated by microorganisms, which increases the heavy metals toxicity to them.
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