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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
电 话:0431-88499428
E-mail:sejuj@jlu.edu.cn
地 址:长春市南湖大路5372号
    (130012)
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Table of Content
26 May 2019, Volume 57 Issue 3
Weighted Estimates of Marcinkiewicz Integral withVariable Kernel on Variable Exponent HerzMorrey Spaces
TAO Shuangping, SHI Jinli
Journal of Jilin University Science Edition. 2019, 57 (3):  459-464. 
Abstract ( 290 )   PDF (328KB) ( 130 )  
By using hierarchical decomposition of function and the weighted inequalities, and by means of the weight boundedness on variable exponent Lebesgue spaces, we proved the boundedness of Marcinkiewicz integral operators with variable kernel on the weighted variable exponent HerzMorrey spaces.
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Generalized Relative Annihilators in R0-Algebras
ZHANG Lifang, WU Hongbo
Journal of Jilin University Science Edition. 2019, 57 (3):  465-472. 
Abstract ( 257 )   PDF (372KB) ( 81 )  
Firstly, using the methods of extended filters, we introduced the concept of the relative annihilator in R0\|algebras, and proposed the concept of the generalized relative annihilator combined with the concept of filters, and it was proved that the generalized relative annihilators in R0-algebras were still filters. Secondly, we described the prime filters by using the generalized relative annihilator, and discussed the relationship between the relative annihilators and generalized relative annihilators. Finally, based on two given elements in R0-algebras, we gave a complete residuated lattice structure which satisfied joininfinite distributive law in the family of generalized relative annihilators.
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Coribbon Forms on Monoidal HomHopf Algebras
WANG Wei, ZHANG Xiaohui
Journal of Jilin University Science Edition. 2019, 57 (3):  473-479. 
Abstract ( 245 )   PDF (506KB) ( 63 )  
We defined and discussed the category of generalized Hom-comodules of a monoidal Hom-Hopf algebra. We used the Tannaka dual method to describe the rigid and balanced structures. Furthermore, we gave equivalent conditions of the ribbon category, and introduced the definition of the coribbon forms.
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Algebraic Properties and Ordinal Sum of Grouping Functions
ZHANG Tinghai, QIN Feng
Journal of Jilin University Science Edition. 2019, 57 (3):  480-486. 
Abstract ( 266 )   PDF (350KB) ( 45 )  
We considered the interrelations among the basic algebraic properties of grouping functions, such as idempotency, strict monotonicity, Archimedean property. We gave the results that the ordinal sum of a series of grouping functions was still a grouping function by means of a way similar to the ordinal sum of semigroups. Furthermore, we rectified several errors in describing the above properties about overlap functions in the existing literature.
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(U,V)IntervalValued Fuzzy Biideals in Semigroups
WANG Fengxiao
Journal of Jilin University Science Edition. 2019, 57 (3):  487-492. 
Abstract ( 240 )   PDF (322KB) ( 50 )  
The concept of (U,V)intervalvalued fuzzy biideals was introduced in semigroups, and its basic properties were discu
ssed. The author gave the relations between (U,V)intervalvalued fuzzy biideals, fuzzy biideals and intervalvalued fuzzy biideals of semigrous, proved that the intersection of (U,V)intervalvalued fuzzy biideals was still (U,V)intervalvalued fuzzy biideals of semigroups, and discussed the correlation properties of direct product of (U,V)intervalvalued fuzzy biideals of semigroups.
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Shock Layer Solution of Nonlinear Wave System
CHEN Huaijun, XU Jianzhong, MO Jiaqi
Journal of Jilin University Science Edition. 2019, 57 (3):  493-499. 
Abstract ( 219 )   PDF (362KB) ( 67 )  
We considered the third boundary value problem of nonlinear singularly perturbed wave equation. Firstly, the outer solution was constructed by using singular perturbation method. Secondly,  correction terms of the shock layer, initial layer and boundary layer were obtained by using the stretched variables. Finally,  the asymptotic expansion of solution to problem was given, and the uniform validity of its asymptotic solution was proved.
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Optimal Control of Resource in Two CompetingSpecies Model with Advection Terms
LIANG Haojian, LI Huilai
Journal of Jilin University Science Edition. 2019, 57 (3):  500-504. 
Abstract ( 310 )   PDF (315KB) ( 62 )  
We described  two competing species  model  by a reactiondiffusion equation with advection term. We hoped that when resources were allocated, the weighted density of two species in the ecosystem reached the maximum during the whole time period and at the final time. By proving the existence of the solution of the equation, the existence of an optimal control and the necessary condition  of the optimal control problem, and the results show  that the population density reaches the maximum when the resource allocation satisfies a bangbang control.
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Periodic Solutions for Seasonally ForcedSIRS Model with Pulse Vaccination
WANG Lin, PANG Yanni, LI Wenjin
Journal of Jilin University Science Edition. 2019, 57 (3):  505-509. 
Abstract ( 238 )   PDF (362KB) ( 53 )  
Using the coincidence degree theory of GainesMawhin, we proved the existence of periodic solutions for seasonally forced SIRS models with pulse vaccination. The effects of different loss of immunity rates on the infectious disease models were compared by some numerical simulation.
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Jordan Standard Form of Generalized Cubic Matrix
LV Hongbin, YANG Zhongpeng, CHEN Meixiang, FENG Xiaoxia
Journal of Jilin University Science Edition. 2019, 57 (3):  510-516. 
Abstract ( 474 )   PDF (341KB) ( 85 )  
By using the method of matrix analysis, based on the existing defined expressions of the generalized cubic matrix, we gave the equivalent expressions related to all possible eigenvalues of generalized cubic matrices, and gave the complete description of Jordan standard form of the generalized cubic matrix.
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Inverse Problem of Heat Source Identification Based onBayesianDifferential Evolution Algorithm#br#
YIN Weishi, LI Jiaqi
Journal of Jilin University Science Edition. 2019, 57 (3):  517-522. 
Abstract ( 253 )   PDF (608KB) ( 131 )  
Using the Bayesiandifferential evolution algorithm, we discussed the twodimensional heat conduction equation. The inversion estimation of the heat source position was given through the observation temperature at different time of an observation point. The numerical experiment results show that, with the increase of the number of iterations, the error of the position parameter of the heat source decreases. When the number of iterations reaches 120, the relative error of the parameter inversion is controlled within 2%. When 5% and 10% white noise are added to the observed data, the relative error changes little, which indicates that the algorithm has good stability.
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Two-Grid Finite Element Discretization Methods for a Class of Poisson-Nernst-Planck Equations#br#
TANG Ming, YANG Ying, LI Xuefang
Journal of Jilin University Science Edition. 2019, 57 (3):  523-529. 
Abstract ( 337 )   PDF (439KB) ( 68 )  
A two-grid finite element method was used to solve a class of Poisson-Nernst-Planck (PNP) equations discretely.
By the two-grid discretization, the coupled PNP system was decoupled into a small scale linear symmetric system, which could effectively reduce the computational complexity. The theoretical results show that the linear symmetry two\|grid algorithm has the same error order as the traditional finite element method. The numerical results show that the method has higher computational efficiency than the traditional finite element method.
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Solving  Grating Diffraction Problem of  Random InterfacesBased on Shape Derivative#br#
HAO Yongle, ZUO Ping, WU Jingzhu
Journal of Jilin University Science Edition. 2019, 57 (3):  530-534. 
Abstract ( 295 )   PDF (427KB) ( 55 )  
We considered  grating problems of random interface. Firstly, it was abstracted to be Helmholtz equations with relevant boundary conditions, and given  the perturbation interface. Secondly, a numerical method based on shape derivative and the finite element method was proposed  to solve the grating problem of random interface. The expected second\|order approximation and the third-order approximation of variance for the grating problem of random interface were obtained. Finally, the estimation of error and numerical examples were given.
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A Regularity  Condition for Existence of Solution of Linear Complementarity Problem
JIANG Xingwu, JIANG Boyang, WANG Xiuyu
Journal of Jilin University Science Edition. 2019, 57 (3):  535-538. 
Abstract ( 291 )   PDF (285KB) ( 54 )  
The homotopy method was used to discuss the existence conditions of a solution of linear complementarity problems. First, 
the absolute value equations equivalent to linear complementarity problem was given. Then, the homotopy equation was constructed for the absolute value equation, and a regularity condition for the existence of solutions of absolute value equations was given by means of this homotopy equation, which  can be transformed into a condition for the existence of solutions of linear complementarity problems.
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MondWeir Type Approximate Duality for a Class of Robust Convex Optimization
ZHAO Dan, SUN Xiangkai
Journal of Jilin University Science Edition. 2019, 57 (3):  539-543. 
Abstract ( 310 )   PDF (311KB) ( 62 )  
By introducing a class of convex constrained optimization problems with uncertain data, we first established a MondWeir type robust approximate dual problem for the uncertain convex constrained optimization problem by means of  robust optimization method. Then, by means of a class of generalized robusttype approximate KKT conditions, we characterized approximate duality relationship between the uncertain convex constrained optimization problem and its Mond\|Weir type robust approximate dual problem.
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General VertexDistinguishing Total Colorings of Corona Graph of 2K2∨K1#br#
LI Ting, CHEN Xiang’en, WANG Zhiwen
Journal of Jilin University Science Edition. 2019, 57 (3):  544-552. 
Abstract ( 208 )   PDF (427KB) ( 51 )  
With the help of the general vertexdistinguishing total colorings of a star, we discussed the general vertexdistinguishing total colorings of corona graph of 2K2∨K1. Under the  general vertexdistinguishing total colorings of the star, the colorings of pendent edges of the star were in an ascending order and finally it was expanded into the general vertexdistinguishing total colorings method of corona graph of 2K2∨K1. The general vertexdistinguishing total chromatic numbers of corona graph were got by depending on the number of pendent edges.
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Weighed Conditional Least Squares Estimation for ADCINAR(1) Model
WANG Yu, WANG Chunjie, ZHANG Haixiang
Journal of Jilin University Science Edition. 2019, 57 (3):  553-561. 
Abstract ( 259 )   PDF (617KB) ( 63 )  
Using the weighed conditional least squares method, we estimated the parameters of the firstorder integer-valued autoregressive model (ADCINAR(1)) based on dependent counting series. We gave the expression of parameter estimation 
 and its asymptotic distribution, and derived the higherorder moments, higherorder cumulants, spectral density and bispectral density of the model. The numerical simulation results show that the validity of weighed conditional least squares method is verified by comparing weighed conditional least squares estimation with conditional least squares estimation and YuleWalker estimation.
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New Exact Solutions of TimeFractional SharmaTassoOlverEquation and Zakharov Equations#br#
REN Xiaojing, GE Nannan
Journal of Jilin University Science Edition. 2019, 57 (3):  562-566. 
Abstract ( 195 )   PDF (287KB) ( 37 )  
With the help of fractional traveling wave transformation and conformable fractional derivatives, we gave exact solutions of several hyperbolic functions for the nonlinear timefractional generalized SharmaTassoOlver equation and Zakharov equations by using the generalized Kudryashov method.
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Lower Bound Estimate of  BlowUp Time for Solutions toNonlinear Hyperbolic Equations with Supercritical Sources#br#
WANG Xue, GUO Yue, ZU Ge
Journal of Jilin University Science Edition. 2019, 57 (3):  567-570. 
Abstract ( 262 )   PDF (293KB) ( 65 )  
By constructing a new control function with  small dissipative term, using energy estimate inequalities and inverse Hlder inequality, the first order nonlinear differential inequality was established about the Lp norm of the solutions of a class of nonlinear hyperbolic equations with supercritical source terms, and  the accurate lower bound estimate of blow\|up time for the solutions  was obtained by discussing the properties of differential inequalities.
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Stability of TwoDimensional Complex Oscillator Networks with Time Delay
LI Xue, XU Xu
Journal of Jilin University Science Edition. 2019, 57 (3):  571-573. 
Abstract ( 209 )   PDF (548KB) ( 53 )  
We considered stability of two dimensional complex oscillator network systems with time delay. By analyzing the stability switching criteria, we discussed the difference of the stability switching between the complex and real systems. Extending the ring structure to the twodimensional case made it possible to generate or save visual patterns.

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ynamic Fuzzy Clustering AlgorithmBased on Weighted Difference Degree
LIU Liangfeng, LIU Sanyang
Journal of Jilin University Science Edition. 2019, 57 (3):  574-582. 
Abstract ( 407 )   PDF (486KB) ( 63 )  
Aiming at the problem that the traditional fuzzy clustering algorithm needed to set the parameters and the initial clustering centers in advance, which resulted in unstable clustering results, we proposed a dynamic fuzzy clustering algorithm based on weighted difference degree. Firstly, the concepts of the sample feature weight vector and the difference degree between s
amples were introduced to describe the distribution of datasets, and a new evaluation index was used to obtain candidate clustering centers. Secondly, according to the criterion of minimum difference degree, the remaining sample points were classified. Finally, the candidate clustering centers were selected and merged according to the evaluation criteria of the DaviesBouldin index (DBI). The experimental results show that the performance of this algorithm is significantly better than that of traditional clustering algorithmin on different datasets, and it has higher adaptability and stability.
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Link Prediction Based on Time Series Combined\=from Node Similarities and Link Number
WEI Xiaohui, XU Guowei, WANG Xingwang, XU Haixiao
Journal of Jilin University Science Edition. 2019, 57 (3):  583-590. 
Abstract ( 255 )   PDF (605KB) ( 67 )  
Aiming at the problem that the existing methods made use of the relative fragmentation of network information, and it was difficult to describe the relationship between link number and similarity score, we proposed a link prediction method in dynamic networks, which used time series combined from node similarities scores and link mumber to predict. Firstly, it predicted similarity scores of all time snapshots by community evolution. Secondly, nodes similarities were combined with real link number by binary time series model and the probability of link between all node pairs in next period was predicted. Finally, the test was carried out on a dataset forwarded by WeiboNetTweet microblog. The experimental results show that the method improves the prediction accuracy by at least 5%, proves the intrinsic relationship between community evolution and link prediction, and verifies the effectiveness of binary time series model.
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A Tabular Reduction Algorithm on Negative Table Constraint Compressed by Cartesian Product
CAI Maomao, LI Zhanshan, DONG Xueyang
Journal of Jilin University Science Edition. 2019, 57 (3):  591-597. 
Abstract ( 232 )   PDF (504KB) ( 28 )  
Based on the principle that cartesian product compression could effectively reduce the scale of negative table constraint, we proposed an efficient algorithm STRC-N to maintain generalized arc consistency on compressed negative table, which solved the problem of traversal of all tuples and low efficiency in the process of maintaining generalized arc consistency on negative table constraint. Experimental results show that when the compression rate of negative table is large, the new algorithm has higher efficiency and better performance than the mainstream negative table constraint processing algorithm due to the reduction of table size. Thus, the negative table constraints processing algorithm is improved.
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Simulation Calculation of Particle with Large Ratio of Length to Diameter Based on Multigrid
SUN Bing, LIU Yuanning, FU Hong, YU Jianqun
Journal of Jilin University Science Edition. 2019, 57 (3):  598-606. 
Abstract ( 233 )   PDF (3297KB) ( 40 )  
Aiming at the problem that the contact computation was complex due to the large mesh size when using single grid method for neighbor search, we proposed a new method based on multigrid. First, the method virtual discretized particle with large ratio of length to diameter (such as long straw particles) into small ones, then the discrete particles were mixed with other particles, and the multigrid method was used to search neighbor. The experimental results show that the method reduces the size of neighbor search grid and the number of neighbor element particles, thus shortens the contact calculation time and improves the calculation efficiency.
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Artificial Bee Colony Algorithm Based on AdaptiveDynamic Reconfiguration and Extremum Disturbance#br#
NI Hongmei, LIU Yongjian, LI Panchi
Journal of Jilin University Science Edition. 2019, 57 (3):  607-612. 
Abstract ( 270 )   PDF (372KB) ( 48 )  
Aiming at the problems of weak optimization ability and slow convergence speed of artificial bee colony algorithm, we proposed an artificial bee colony algorithm based on adaptive dynamic reconfiguration and extremum disturbance. First, we introduced chaos optimization operator to generate initial solutions and carry out adaptive dynamic reconfiguration according to the contribution of hired bees. Then, we introduced extremum disturbance operator to implement random perturbation to the individual extreme value and global optimal value of hired bees. The experimental results show that the algorithm increases the diversity of the population, accelerates the speed of convergence, and improves the evolutionary ability of population.
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Optimization of MVB Periodic Scheduling Table Based on Genetic Algorithm
HU Huangshui, ZHENG Man, WANG Hongzhi
Journal of Jilin University Science Edition. 2019, 57 (3):  613-618. 
Abstract ( 270 )   PDF (665KB) ( 33 )  
We proposed a realtime scheduling algorithm based on genetic algorithm for multifunction vehicle bus (MVB). First, according to the IEC613751 international standards, the constraints and optimization objectives were determined. 
Then, taking MVB periodic information group as the operation object, by adjusting the parameters such as the width and gradient of the scheduling table, the periodic scheduling table  was obtained to solve the shortcomings of the existing scheduling algorithm in the data transmission capability and bus utilization. The simulation results show that the proposed algorithm has better optimization effect on the construction of the periodic scheduling table than other algorithms, and improves the bus utilization.
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Image Identification Method Based on TwoDimensional Discrete Wavelet
YANG Jian, YANG Chaoyu, LI Huizong
Journal of Jilin University Science Edition. 2019, 57 (3):  619-626. 
Abstract ( 234 )   PDF (6030KB) ( 56 )  
Aiming at the problem that traditional computergenerated image identification methods based on neural networks had the disadvantages of high difficulty in identification and low accuracy, we proposed a computergenerated image discriminant method based on wavelet transform. Firstly, the image wavelet features were extracted by decomposing twodimensional discrete wavelet transform, and the multidimensional wavelet feature vector was extracted by nlevel wavelet decomposition according to image wavelet feature. Secondly, the noise features of computergenerated image were extracted by a threedimensional transform domain wave denoising algorithm (BM3D). Finally, the support vector machine (SVM) classifier was used to identify the computergenerated image, the multidimensional wavelet feature and the noise feature were classified by the SVM classifier to solve the problem that the two features were merged to form a linear inseparable highdimensional feature, and the accurate identification of computergenerated image was realized. The experimental results show that the proposed method has higher accuracy and stability in the identification of computergenerated images.
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Heterogeneous Data Fusion Method of Internet ofThings Based on Intelligent Optimization Agorithm
ZHU Chaoping, REN Jiping
Journal of Jilin University Science Edition. 2019, 57 (3):  627-632. 
Abstract ( 427 )   PDF (587KB) ( 51 )  
Aiming at the problems of slow speed and low accuracy of data fusion methods in the Internet of Things, in order to improve the effect of heterogeneous data fusion in the Internet of Things, we proposed a heterogeneous data fusion method of the Internet of Things based on intelligent optimization algorithm. Firstly, multinodes were used to collect the status data of monitoring objects, and the noise of data collected by each node was filtered to reduce the size of data initially and improve the quality of heterogeneous data of the Internet of Things. Secondly, clustering analysis algorithm was introduced to process the data of cluster head and eliminate the redundancy of data in the cluster. Finally, intelligent optimization algorithm was used to weigh the cluster head data in the aggregation node, and the contrast experiment was compared with other fusion methods under the same environment. The experimental results show that this method can effectively fuse heterogeneous data of the Internet of Things, and obtains highprecision results of heterogeneous data fusion of the Internet of Things. The heterogeneous data fusion of the Internet of Things has fewer errors and faster speed, which improves the efficiency of data fusion of the Internet of Things.
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Vertical Handoff Algorithm of Heterogeneous Wireless NetworksBased on Improved Markov Process#br#
YAN Li, GAO Ting
Journal of Jilin University Science Edition. 2019, 57 (3):  633-639. 
Abstract ( 253 )   PDF (754KB) ( 46 )  
Aiming at the problem that the current vertical handoff algorithm of heterogeneous wireless networks had many handover times and the quality of service was difficult to meet the practical application needs, in order to achieve better quality of service for heterogeneous wireless networks, we proposed a vertical handoff algorithm of heterogeneous wireless networks based on improved Markov process. Firstly, the overall performance evaluation index system of heterogeneous wireless networks was established. Secondly, the weight of the overall performance evaluation index of the network was determined by grey relational analysis method. Finally, the state of heterogeneous wireless networks was predicted by Markov decision process, and the optimal access network was selected, and its performance was tested and analyzed by the simulation and comparative experiment of vertical handoff of heterogeneous wireless networks. The experimental results show that compared with other vertical handoff algorithms of heterogeneous wireless networks, the proposed algorithm can reduce the average handoff times, avoid frequent handoff, greatly reduce the packet loss rate of network data transmission, improve user satisfaction and achieve higher quality of service.
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Face Detection Method Based on Dimensionality Reduction Algorithm of Random Fourier Supervised Feature Transformation #br#
WANG Ying
Journal of Jilin University Science Edition. 2019, 57 (3):  640-646. 
Abstract ( 251 )   PDF (4882KB) ( 83 )  
Aiming at the problem that traditional face detection methods used space vectors to identify high-dimensional face features in complex environments, which had low detection efficiency and poor detection accuracy, the author proposed a face detection method based on dimensionality reduction algorithm of random Fourier supervised feature transformation. Firstly, large-scale multi-dimensional candidate sets were randomly formed by random Fourier mapping, and the best subset of feature sets was obtained by feature selection algorithm. Secondly, based on the extreme learning machine of l2,1 norm, the random mapping of Gauss kernel fitting effect was generated, the worthless and redundant features of face random
 features were filtered by l2,1 normalization, and the process was optimized to improve the accuracy of face feature dimensionality reduction. Finally, the dimensionality reduction feature based on dimensionality reduction feature and Adaboost’s face detection algorithm was adopted, and the cascade classifier was obtained by Boosted cascade algorithm to realize the accurate detection of face features. The experimental results show that the missing detection rate and false detection rate of the proposed method are both 8%, and the average detection time is 118 ms. The proposed method has high operational efficiency and detection accuracy.
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Solving Ramsey Number Algorithm Based on Set Theory
BAI Yunxiao
Journal of Jilin University Science Edition. 2019, 57 (3):  647-652. 
Abstract ( 336 )   PDF (607KB) ( 45 )  
Aiming at the problem of low efficiency, high timeconsuming and large error in solving Ramsey number by the traditional singlecore DNA computer algorithm, the author proposed a Ramsey number algorithm based on set theory. The algorithm was based on the Phoenix++ system of the MapReduce model based on set theory. The author designed and optimized the Ramsey number algorithm for the complete graph under the singlcore CPU. Data preprocessing, efficient task segmentation and keyvalue pair planning were performed during optimization. The parallel algorithm based on set theory in Phoenix++ system was obtained. The Ramsey number was solved by DNA computer algorithm and its numerical value was verified to solve the Ramsey number. The experimental results show that the number of image processed by the program increases with the increase of the vertices. The proposed method has high accuracy in solving the Ramsey number, better maximum acceleration ratio and execution efficiency, and strong computational performance.
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Explosive Detection System Based on Sequential Probability Ratio Test
LIU Xuan, GUO Yong, JING Shiwei, LI Mingfei, ZHENG Yan, GAO Yadong, NIAN Ruixue
Journal of Jilin University Science Edition. 2019, 57 (3):  653-657. 
Abstract ( 326 )   PDF (1648KB) ( 36 )  
The explosive detection system based on tagged neutron method was designed. The system used the ING-27 neutron generator and the LYSO γ detector for detection. The explosives were distinguished based on sequential probability ratio test (SPRT) method. The characteristic peaks of C,N, and O elements were analyzed and calculated in the measured γ energy spectrum data of milk powder, ammonium nitrate (AMM) and TNT simulators. The probability ratio results were compared with the corresponding thresholds ln A and ln B. The results show that the SPRT method can be applied to the explosive decision.
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FirstPrinciples Calculation of Electronic, Mechanical and Optical Properties of Si8-xGex Alloys#br#
YANG Xiaocui, LI Wei, MA Hongyuan, YU Zhuo, XIAO Junping
Journal of Jilin University Science Edition. 2019, 57 (3):  658-663. 
Abstract ( 202 )   PDF (799KB) ( 63 )  
The electronic, mechanical and optical properties of  Si8-xGex alloys were investigated by using firstprinciples calculation method based on density functional theory. The calculation results show that the structures of energy bands of  Si8-xGex alloy are similar, the elastic coefficient, bulk modulus and shear modulus decrease with the increase of x, the 
static dielectric constants, refractive index and reflection coefficient increase quasilinearly with the increase of x, 
and the plasma oscillation frequency decreases with the increase of x.
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Charge Transfer of Methionine Based on AtomicCharge Calculation under Implicit Solvent
ZHU Ying, CHEN Hongbin
Journal of Jilin University Science Edition. 2019, 57 (3):  663-667. 
Abstract ( 243 )   PDF (681KB) ( 80 )  
The excited state wave function of chiral enantiomer of S-methionine (S-Met) under implicit solvent was calculated, and the percentage of charge transfer between fragments was calculated based on the atomic charge. The results show that the atomic dipole moment corrected Hirshfeld (ADCH) and Hirshfeld charge methods have the same qualitative results, and the quantitative results are quite different. The calculated results of the charge transfer of S-Met molecular system fragment are basically the same under the implicit solvent H2O and methanol, and the changes of Mayer bondlevel between the fragments and the other parts of the molecule are basically the same.
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Design and Analysis of Trapezoidal Double BandNotchedUltrawideband Planar Monopole Antenna
OU Renxia
Journal of Jilin University Science Edition. 2019, 57 (3):  668-672. 
Abstract ( 300 )   PDF (1863KB) ( 61 )  
The author designed a trapezoidal double bandnotched ultrawideband planar monopole antenna, and the influence of changing the radius of Cshaped gap bandnotched structure and Lshaped gap on the antenna performance was analyzed. The antenna consisted of trapezoidal composite structure radiation unit, coplanar waveguide feeder, floor and coaxial joint. The results show that the working frequency range of the designed antenna is 2.9—11.2 GHz, the frequency range of the bandnotch is 3.28—3.79 GHz and 4.82—6.08 GHz, double bandnotched wave and radiation effect are good, which can reduce the mutual interference caused by crossoverlapping of frequency bands among wireless communication systems.
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Synthesis and Characterization of Indium Oxide Nanowire Arrays
ZHOU Yuyi, GONG Jie, WANG Xinqing, LI Dongsheng, LI Xiaoqing
Journal of Jilin University Science Edition. 2019, 57 (3):  673-678. 
Abstract ( 218 )   PDF (933KB) ( 54 )  
Indium oxide (In2O3) sample was synthesized by using SBA15 hard templates replication technique. The crystal structure, grain size, morphology and bandgap width of the sample were characterized and by Xray diffraction (XRD), scanning electron microscopy (SEM) and UVVisible spectra, and the influence mechanism of nanostructure on gas sensing property was analyzed. The results show that the structure of sample is nano arrays. The threedimensional In2O3 nano arrays are composed of the regular arrangement of single crystal subglobose In2O3 particles with a diameter of about 15 nm, and the spacing of interwires is about 1 nm and the bandgap width is 3.63 eV. When the temperature is 320 ℃, the volume ratio of ethanol gas in air is 10-4, the sensitivity is 42.3. The gas sensing properties of the nanostructured samples are better than those of the same grade nanoparticles and mesoporous nanomaterials.
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Competitive Mechanism of Intramolecular and IntermolecularProton Transfer of 2-Amino-3-(2′-benzoxazolyl)quinoline Water Complex in Excited State #br#
WANG Ye, XIN Chunyu
Journal of Jilin University Science Edition. 2019, 57 (3):  679-683. 
Abstract ( 227 )   PDF (1483KB) ( 58 )  
We investigated the competition mechanism of intramolecular and intermolecular proton transfer of 2-amino-3-(2′-benzoxazolyl)quinolineH2O (ABO-H2O) water complex in the excited states by means of the density functional theory and timedependent density functional theory. The results show that there is an intramolecular hydrogen bond and two intermolecular hydrogen bonds in the ABO-H2O complex. When the complex in the ground state is excited to the first electron excited state, only a 34157 kJ/mol energy barrier is needed for the ABOH2O complex to occur intramolecular proton transfer reaction. There is a 63585 kJ/mol energy barrier in the intermolecular double proton transfer process of the ABO-H2O complex in the excited state. There is a competitive mechanism for intramolecular and intermolecular proton transfer processesof the ABO-H2O complex in the first electron excited state. The excited state intramolecular proton transfer process is more likely to take place for the ABO-H2O complex.
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Effect of Porous Modification on Preparation and PhotocatalyticActivity of g-C3N4/CdS Composite Photocatalyst#br#
CAO Fang, CHEN Tian, FENG Shuting, LIU Yuxiang, LI Yuzhen, SHI Jianhui
Journal of Jilin University Science Edition. 2019, 57 (3):  684-690. 
Abstract ( 207 )   PDF (2494KB) ( 156 )  
A porous modified graphitelike phase carbon nitride (pg-C3N4) material was prepared by a high temperature condensation polymerization method using melamine hydrochloride as a precursor. The CdS nanohollow microspheres were prepared by a hydrothermal method, and the pg-C3N4 and CdS were effectively combined by deposition method to prepare pg-C3N4/CdS composite photocatalyst. The samples were characterized by Xray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), ultravioletvisible spectroscopy (UVVis), fluorescence spectrum and electrochemical impedance spectroscopy. The photocatalytic activity was evaluated by the photocatalytic degradation of dye Rhodamine B (RhB) under the visible light, and the mechanism of photocatalytic degradation of RhB was given. The results show that the porous modification of graphitelike phase carbon nitride (g-C3N4) is beneficial to the formation of intimate interface between pg-C3N4 with CdS, and then it promotes the separation and transmission of photogenerated electronhole of pg-C3N4/CdS, and effectively improves its photocatalytic activity and stability.
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Determination of Total Mass Ratio of Seven Metal Elements by Atomic Absorption Spectrometry andTheir Speciation Analysis in Inonotus obliquus#br#
QI Haiyan, LAN Zhiman, TANG Wanxia, WANG Ying, MA Lin, CHU Hongtao
Journal of Jilin University Science Edition. 2019, 57 (3):  691-695. 
Abstract ( 264 )   PDF (366KB) ( 41 )  
Mn,Ca,Zn,Fe in Inonotus obliquus were detected by flame atomic absorption spectrometry, and Pb,Cu,Cr were detected by graphite furnace atomic absorption spectroscopy. Microwave digestion was used to obtain total mass ratio of metal elements in I.obliquus. The primary forms of water soluble metal elements were gained by ultrasonic water extraction method, and the secondary  speciation analysis of five metal elements were carried out by Tessier step by step extraction method. The results show that the linearity of regression equation of seven metal elements is good, the correlation coefficients are greater than 099, and the detection limits is 0007—2989 ng/mL. Cu in I.obliquus mainly exists in the form of carbonatebound and residue. Ca,Mn,Zn and Fe elements mainly exist in the form of ion exchange and 
residue, Cr mainly exists in the form of residue, and Pb mainly exists in the form of carbonatebound.
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Screening and Bioactivity of HighActivityShortPeptide Mimics of Exendin4
SONG Xiangwei, WANG Xueli, WANG Lulu, LOU Wanlin, WANG Liping, XIONG Xinhui, NIU Jianli, LI Wei
Journal of Jilin University Science Edition. 2019, 57 (3):  696-700. 
Abstract ( 285 )   PDF (507KB) ( 48 )  
Using the technique of phage screening, we utilized the glucagonlike peptide1 receptor (GLP-1R) of RINm5F cell as the target to screen GLP-1 receptor agonists through competitive elution by Exendin-4 and obtained 12mer peptide mimics EPA. The experimental results show that EPA and Exendin4 can promote the proliferative activity of islet β cells, and the activity of EPA is 5%—25% higher than that of Exendin4 in the range of 40—200 μmol/L. EPA inhibits the apoptosis of islet β cells by inhibiting bax gene and upregulating bcl2 gene expression, and inhibiting Caspase3 activity at 100 mmol/L high concentration of glucose toxicity, EPA is a highactivity shortpeptide mimics of Exendin-4, which can inhibit the mitochondrial apoptosis through bcl-2/bax…Casepase3 signaling pathway.
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Antibacterial Activities and Mechanism of Extractsfrom Sanguisorba of ficinalis L.in Vitro
ZHANG Lei, MAN Li, WAN Chunlei, HAO Jingwei, JING Yunrong, CHAI Junhong
Journal of Jilin University Science Edition. 2019, 57 (3):  701-707. 
Abstract ( 290 )   PDF (699KB) ( 60 )  
The active constituents of Sanguisorba officinalis L. were extracted by ethyl alcohol, ethyl acetate, dichloromethane, nbutanol and water respectively, and the organic acids, triterpenoids and flavonoids were obtained. The antibacteria
l effects and mechanism of the extracts on Salmonella typhoon and Shigella dysenteric were studied. 
The results show that there were obvious effects of ethyl acetate, ethyl alcohol and nbutanol of S.officinalis  on S. typhoon and S.dysenteric. Compared with the control group, the difference is very significant 
(p<001). The minimum inhibitory concentration (MIC) of different bacterias were obviously different. The organic acids, triterpenoids and flavonoids in the extracts of S.officinalis  have various degree of bacteriostasis. The extracts of S.officinalis can inhibit growth of S.typhoon and S.dysenteric\% by obstructing cytoderm synthesis and cell membrane formation. The inhibition increases with the increase of t
he mass concentration of extract and the prolongation of the action time.
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Degradation of Polyvinyl Alcohol Simulated Wastewater bySilicotungstic Acid Catalytic Ozonation
DONG Deming, MA Shanshan, HUA Xiuyi, YAN Zhengchu, WANG Xinzhou, LIANG Dapeng, ZHU Jianxin
Journal of Jilin University Science Edition. 2019, 57 (3):  708-715. 
Abstract ( 282 )   PDF (1481KB) ( 55 )  
The catalytic effect of typical heteropolyacids (HPA) on ozonation was investigated by ozonation of polyvinyl alcohol (PVA) which was not easily biodegradable. First, silicotungstic acid (HSiW) with catalytic effect on ozonation PVA was screened out among three typical heteropoly acids, and the effects of reaction time, ozone mass concentration, pH value of the system, catalyst dosage and reaction temperature on removal rate of PVA were investigated. Then, the optimal conditions for removing PVA were determined by orthogonal experiments. The results show that the pH value of the system has the greatest influence on the removal rate of PVA, and the effect of catalyst dosage is small. The optimal conditions for the removal of PVA by the silicotungstic acid catalytic ozonation system are: ρ(O3)=25 mg/L, reaction temperature of 30 ℃, pH=83, catalyst dosage of 250 mg/L. Under this condition, the degradation experiment was carried out for 5 m
in, and the removal rate of PVA can reach 983%, the addition of silicotungstic acid does not change the basic pathway for ozonation to degrade PVA, the silicotungstic acid can promote ozone decomposition to generate more HO·, and can also catalyze the direct reaction between ozone and PVA.
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Adsorption Effect on Cd2+ by Scoria in Groundwater
ZHANG Yuling, CHEN Zaixing, CHU Wenlei, SI Chaoqun, DENG Zhiqun, CUI Xiaoshun
Journal of Jilin University Science Edition. 2019, 57 (3):  716-721. 
Abstract ( 318 )   PDF (1149KB) ( 50 )  
Aiming at the problem of Cd2+ pollution in water, the experiment of Cd2+ adsorption by ecologically safe scoria in low temperature water was carried out, and we analyzed the effect and influence factors of Cd2+ adsorption by scoria. The results show that scoria is a kind of Cd2+ adsorbent with potential value. The removal rate reaches 97.10% in 0.5 mg/L Cd2+ solution using 1.00 g scoria at 10 ℃. The neutral environment is conducive to adsorbing Cd2+. 
Ca2+,Mg2+ and NO-3 in groundwater can inhibit the adsorption of Cd2+by scoria, while Fe2+ and Mn2+ have little inhibitory effect. When the mass concentrations of NH+4 and NO-2 are less than 50 mg/L, they have no effects on the adsorption of Cd2+ by scoria. When the mass concentrations are more than 50 mg/L, they have inhibitory effects on the absorption. SO2-4 has no effect on the adsorption. HCO-3 with higher mass concentration has promotion effect on the adsorption of Cd2+ by scoria.
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Rahnella sp.LRP3 Induces Basic Zinc Phosphate Precipitation and Its Role in Zinc Contaminated Soil Remediation#br#
ZHOU Ye, JIN Xiangyi, ZHANG Xiufang, WU Di, LENG Su, LI Mingtang
Journal of Jilin University Science Edition. 2019, 57 (3):  722-727. 
Abstract ( 229 )   PDF (1374KB) ( 66 )  
The induction of zinc (Ⅱ)phosphate precipitation by Rahnella sp.LRP3 and its role in Zn contaminated soil were investigated by batch and soil culture experiments. Xray diffraction, scanning electron microscope, energy spectrum and Fourier transform infrared spectroscopy were analyzed. The results show that the maximum tolerable mass  concentration of strain LRP3 to Zn2+ is 120 mg/L. The removal rate of Zn2+ in solution by strain LRP3 is bacterial cell (974%)>the fermentation broth (882%)>bacteria free fermentation broth (816%). The fermentation broth of strain LRP3 can be induced to form cubic mineral crystal Zn2(OH)PO3 with good crystallization by biomineralization. The fermentation broth of
 strain LRP3 can rapidly reduce the mass ratio of DTPAZn after adding to soil. After 5 d of incubation, the mass ratio of DTPAZn decreases by 784% on average. After 6 d of incubation, the mass ratios of weak acid extractable state and oxidizable state of Zn in soil decrease by 72.5% and 56.2% , respectively, and the mass ratios of reductive state and residual state increase by 851% and 148%, respectively. Therefore, strain LRP3 has strong  resistance and adsorption capacity Zn2+. It can release phosphate by degrading phytic acid and further induce the Zn (Ⅱ)phosphate mineral crystal, which reduce the bioavailability of Zn in soil. So strain LRP3 can be applied in the green and sustainable remediation of Zn contaminated soil.
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