Table of Content

20 June 2012, Volume 40 Issue 3

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Orignal Article

A Stable Numerical Algorithm for an Inverse Parabolic Problem withTwo Unknown Boundaries

WANG Ping

2012, 40(3):  5-8. 

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A one－dimensional inverse parabolic problem can be encounter when we research simulation of homogeneous porous medium flow in physics. The problem consists of a parabolic equation with two conditions which are unknown at the boundaries and a condition which is determined from an over－specified data measured at an interior point. In order to solve this problem, uniqueness of the solution should be proved first, then the problem is discretized and a finite difference scheme is given. Stability conditions for numerical solution to inverse problem are stated. A set of Chebyshev polynomials are approximate to the unknown function and the unknown set of expansion coefficients in unknown function are determined from the Least－squares method. In the last section the paper gives some numerical examples.

A Normal Criterion of Families of Meromorphic Functions Concerning Exceptional Functions

ＷEI Ｈｅ-ｗｅｎ

2012, 40(3):  9-11. 

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Ｔｈｅ ｐａｐｅｒ ａｐｐｌｉｅｓ ｔｈｅ ｔｈｅｏｒｙ ｏｆ ｎｏｒｍａｌ ｆａｍｉｌｙ ａｎｄ Ｚａｌｃｍａｎ′ｓ ｌｅｍｍａｓ， ｏｂｔａｉｎｓ ａ ｎｏｒｍａｌｉｔｙ ｃｒｉｔｅｒｉｏｎ ｃｏｎｃｅｒｎｉｎｇ ｅｘｃｅｐｔｉｏｎａｌ ｆｕｎｃｔｉｏｎｓ， ａｎｄ ｉｍｐｒｏｖｅｓ ｓｏｍｅ ｅｘｉｓｔｉｎｇ ｒｅｓｕｌｔｓ．

The Existence of Positive Solution to an Elliptic System Involving Sobolev Critical Exponent

WAN You-yan

2012, 40(3):  12-14. 

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This paper studies an elliptic system involving Sobolev critical exponent. By the variational methods, we can obtain the existence of local minimum point of the energy functional related to the system which is near zero, and the local minimum point is the positive solution to this system. Moreover, It is also proved that this positive solution tends to zero when the perturbed term goes to zero.

Model of Solving Problems about Multi-depot Location - Routing Algorithm

WAN Feng-jiao

2012, 40(3):  26-32. 

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Considering the complication of the realistic problem and the limitation of research into locations－routing problem of logistics separately and integrated logistics, the paper studies location－routing problem including multi－depot in integrated logistics. Model of LRP is given on the basis of some hypotheses. Because LRP is NP－hard problem, a two－phase heuristic approach for solving the LRP is proposed. In location－allocation phase, after the candidate facilities and their customers are determined by using taboo－search algorithm, vehicle routing phase is assorted to by adopting ant colony algorithm to search the optimal routes. These two phases operate repeatedly and continuously until meeting the condition of termination. At last, the dissertation gives an example to illustrate the model and algorithm effectiveness.

An Applied Method Based on the "PauTa" Rule for Real-time Data of Regional Automatic Station

CHEN Zheng-xu,WANG Jun-jiao,HONG Yue-ying

2012, 40(3):  33-37. 

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In this paper, a new data processing method based on a kind of improved "PauTa" criterion is put forward for the treatment of real time precipitation data of regional automatic weather stations, to solve the problems occurred in related data applications. First, sample space is collected by Euclidean distance clustering, then the sample mean and the residuals are calculated, after that the definition for a suspicious degree is given, to calculate real suspicious degree of various sites. In the end, actual data in Zhejiang Province are used for parameter analysis, which proves the validity and practicability of the new method.

ExactNumericThe Contrast Experiment of Canonical Correlation Analysis Between Nonlinear and Linear

FANG Jian－bin,GUAN Qiong,WANG Yu－chun

2012, 40(3):  38-40. 

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Linear canonical correlation analysis reveals potential linear relationship between two groups of variables, but in practical application, there is also potential nonlinear relationship between variables. The paper studies the nonlinear canonical correlation analysis algorithm, reveals variables′ potential nonlinear relationships, and verifies their good performance through the contrast experiment.

Bichromatic Phase Control of Spontaneous Emissionin a Three-level V-type Atomic System

SHI Wen-xing,ZHANG Li-hui

2012, 40(3):  41-44. 

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Spontaneous emission of a three－level V－type atom driven by a pair of bichromatic fields on the basis of density matrix equation and quantum regression theories are studied. The results show that the spontaneous emission depends strongly on the difference between the relative phases of two bichromatic fields, without depending on the respective phase or relative phase. Selective elimination of the spontaneous emission can be achieved simply by varying the relative phase difference.

Researching on Pattern-search Moving Windows Method of Fitting Systematical Errors

LIU Qing－yuan,ZOU Cheng－hao

2012, 40(3):  45-49. 

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The paper discusses the way of improving positioning accuracy by eliminating the systematic errors in the navigation data. Based on the Kalman filter of window fitting systematic errors, the method and process for determining the window length are discussed. The optimized idea was introduced, which was made to be more suitable for coding by the pattern－search methods for determining window length. The Pattern－search moving windows method has wider applicability in fitting systematical errors.

Research on Solar Energy Selective Absorbing Coating of Cr-Al2O3

FANG Wen－yu

2012, 40(3):  50-53. 

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The electronic structure and optical properties of Cr and Al2O3 were analyzed qualitatively by calculating their band structure, density of states and dielectric function based on first－principles. The extinction coefficients of Cr and Al2O3 were fit with the dielectric function, and their effects on the absorptivity and emissivity were studied. Based on the calculating results, we designed the experimental scheme that preparing the Cr-Al2O3 metal－ceramics films by plasma spraying process, and the performance of which were tested and analyzed.

Data Modeling Method of DC Brushless Fan Based on PSpice

XIONG Chuan,QIN Yuan－nian

2012, 40(3):  54-57. 

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Due to the electrical characteristics of the DC brushless fans with different motors are various, it is difficult to find the appropriate PSpice models for them in PSpice simulation software. The designers should be establish or revise models, which is a complicated process. This paper proposes a new method for establishing the PSpice model of DC brushless fan quickly, which according to the real work parameters. The simulation model with high precision could be established easily by this method, and it provides a way to solve the problem of shortage in PSpice model storehouse.

Design of Detecting and Tracking Body Moving Object System and Simulative Algorithm

ZHU Yi-feng,CHEN Li－hua

2012, 40(3):  58-63. 

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Detecting and tracking moving object is one of the key technologies in analyzing human movement, and is also an important part of intelligent monitoring system. In the part of detecting, according to characteristics of indoor monitoring, this paper puts forward the method obtaining in indoor background by statistical averaging method, and then uses background subtraction method to detect indoor moving object, and uses an improved regional growth method to connect the areas which belong to the same moving object region. In the part of tracking, this paper uses Kalman filter to predict the location′s parameters of the object. According to the predicted parameters, the system tracks human target and obtains human moving track. The system is modeled and simulated through Matlab／Simulink, and the algorithm parameters are revised accordingly. Through testing several indoor video sequences, it is shown that the algorithm can detect and track human movement correctly.

An Urban Public Traffic Supervisory Control SystemBased on GPS and GPRS

CHENG Yuan-bin

2012, 40(3):  64-68. 

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Building a perfect urban public traffic supervisory control system is the press for an urban public traffic system to advance management level, efficiency of running and quality of service. An urban public traffic supervisory control system should get the position and state of running vehicles, and then, tells the information to managers and passengers by pellucid manner, it also can transmit manager′s instruction to the driver. An urban public traffic supervisory control system is a typical CPS. This paper proposed an economical and applied urban public traffic supervisory control system based on GPS and GPRS, and analyzed some issues in implement.

2012Impact of HIV Replication by PKA Phosphorylation of HIV NefLEE P.

2012, 40(3):  77-82. 

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ObjectiveTo study impact of Nef PKA phosphorylation site on HIV replication. MethodsTo mutate Nef Ser9 to alanine in the context of full－length HIVNL4－3 to make a single mutant of HIV DNA, then make viral stock by using either wild－type HIV or the single mutant HIV. Finally using these viral stocks to infect PBMCs. ResultsVirus made from single mutant of Ser9 to alanine lowered HIV replication in resting PBMCs compared to parental virus. ConclusionThis mutation plays a major role in abrogating the Nef effect on HIV replication in unstimulated primary cells. This result suggests that Nef phosphorylation by PKA is an important step in the viral life cycle in resting cells.

Study on Level Changes of Blood Urea Nitrogen, Creatinine, Hemoglobin and White Blood Cell of the Normal Pregnant Women

TIAN Qiang,ZHANG Hong－bo

2012, 40(3):  86-88. 

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ObjectiveTo study level changes of urea nitrogen (Urea), creatinine (Crea), hemoglobin (HGB) and white blood cell (WBC) in the blood of the normal pregnant women, and to probe into the reasons for the changes of the indexes and the significance for the pregnant women. MethodsUsing ADVIA2400 automatic biochemical analyzer and ABX－PENTRA60 hematology analyzer to detect serum urea nitrogen(Urea), creatinine (Crea), hemoglobin (HGB) and white blood cell (WBC) of 145 normal pregnant women and 125 non－pregnant women (the controls). ResultsThe concentrations of serum urea nitrogen (Urea), creatinine (Crea), hemoglobin (HGB) were decreased for normal pregnancy women than those for the control group, but their white blood cell (WBC) was raised for the control group′. The difference was statistically significant(P＜0.05). ConclusionThe urea nitrogen(Urea), creatinine (Crea), hemoglobin (HGB) and white blood cell (WBC) in the blood plasma of the normal pregnancy women should not be considered in accordance with the normal reference range. The characteristics of detecting results should be given sufficient consideration and the reference range for the normal pregnant women should be established.

Observation of Validity and Safety of Behavior Therapy, Acupuncture Therapy Combined with Methylphenidate in Treatment of Attention Deficit Hyperactivity Disorder

CHEN Yue,ZHU De-xin,YANG Lu

2012, 40(3):  93-96. 

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ObjectiveIn search of effective and less side－effective treatment protocols of deficient hyperactivity disorder (ADHD). Methods120 children met the inclusive and exclusive criterion were randomized into 3 groups40 cases in Group A with medications combined with behavior therapy, 40 cases in Group B with medications combined with acupuncture therapy and 40 cases in Group C with medications alone. The outcomes of clinical efficacy, Conners index of hyperactivity (CIH) and adverse drug reaction among the three groups were compared respectively. ResultsSignificant differences were found in the clinical efficacy among 3 groups before and after treatment, and there were significant differences between Group A and C. The CIH scores of 3 groups all showed significantly reduction before and after treatment, significant differences were found in post－treatment scores of CIH among 3 groups, especially Group A vs C and Group B vs C. Adverse drug reaction was observed in all 3 groups, and Group B with less adverse drug reaction than Group A and C. ConclusionThe 3 interventions all have the effect of reducing the symptoms of ADHD. The behavior therapy can obviously increase the clinical effect of Methylphenidate, while acupuncture can obviously reduce the adverse drug reaction of Methylphenidate. It should be combined with behavior therapy, acupuncture and medications, in order to increase the validity and safety of the intervention on ADHD.

Clinical Effect Observation of 50 Cases about Preservation Treatment of Cracked Molars

WANG Ya－ling

2012, 40(3):  97-99. 

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ObjectiveBased on the clinical features of cracked molars, the methods exploring conservative treatment to restore mastication have been studied. Methods50 cases clinical definite of cracked molar were treated synthetically. (1) Make occlusal adjustment for those that are on a deep pattern, the normal pulp, companied by allergic symptoms. (2) Make occlusal adjustment for those that are associated with pulpitis or periapical lesion, in order to prevent the teeth fracturing, through the teeth with ring external fixation. After conventional root canal treatment, patients were observed for two weeks. Those who were asymptomatic were entire crown repaired with metal ceramic dental. Two years later, the efficacy was analyzed. ResultsThrough the above comprehensive treatment, after entire crown repairing with metal ceramic dental, 45 cases of the racked molar having preserved significance were restored in the normal structure and masticatory function fully. The effective rate is 90％, and only five cases failed. ConclusionPrompt and appropriate synthetic treatment and entire crown repairing can save most of cracked molars and help them regain masticatory function. The effect of treatment is significant and effective.

Researching Development of Treatment of Drug Abuse

YUE Kai,CHEN Lin,MA Bao-miao,LI Chao-ying

2012, 40(3):  100-104. 

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The drug abuse problem in China reappeared in the late 1980s. The number of registered addicts in 2011 was 1.54 million. Heroin abuse leads to serious social and health problems, especially to the spread of 51.2％ of HIV／AIDS in China. Currently, the main treatments for heroin dependence in China include methadone maintenance treatment (MMT), treatment of traditional Chinese herbal medicine, psychological intervention treatment, and immunotherapy. The paper demonstrates researching development and future of treating heroin addiction concerning the above－mentioned treatments.

Research on Technology of Extraction Collagen from Tilapia Fish Scales

SUN Xian-xun,SUN Qi-ying,HAN Xue,ZHOU Li-hong

2012, 40(3):  105-107. 

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The technology of extraction collagen from tilapia fish scales through pepsin hydrolysis has been studied. According to hydrolysate concentration of hydroxyproline(HYP), the single factor and orthogonal experiment was determined the best enzymatic hydrolysis condition. The optimum condition of temperature, pH, enzyme concentration and hydrolyzing time for the extraction is 65℃、 pH 2.0、 2％、 2 h. The extraction rate of collagen from tilapia fish scales was 94.24％ under this optimal condition.

Researching Development of Nano-structured Scaffolds inTissue Engineering

ZHONG Xiao－zhong,LI Jia－nan

2012, 40(3):  108-110. 

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Nano-fibrous scaffold technology is a newly－emerging technology for forming biological substitutes of impaired tissue in tissue engineering. Nano－structured scaffolds can simulate the nature extracellular matrix to be three－dimensional scaffolds that support cell adhesion, proli- feration and differentiation. The paper focuses on the structure features, fabrication technology and biological effects of nano－fibrous scaffolds.