Loading...

Table of Content

      
    16 February 2009
    Volume 39 Issue 1
    机器学习与数据挖掘
    Computational intelligence and its application in psychology
    YU Jia yuan1, TIAN Jin ting1, ZHU Qiang zhong2
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  1-5.  doi:
    Abstract ( 320 )   PDF (311KB) ( 1814 )   Save
    Related Articles | Metrics
    Abstract: Computational intelligence is a kind of theory and method that can simulate mechanisms of people, evolutionary process of life, intellectual behavior of people, and then get and solve, problems, and use information on a computer. Computational intelligence is adaptable to psychological research on many aspects. The neural network model which belongs to machine learning has become one kind of tool for discussing social perception, memory, and learning which are inherent mechanisms of advanced psychological processes, and its appearance has stimulated efforts to find a new approach for analyzing inherent psychological processes and state. Computational intelligence has penetrated into validity argument, the prediction of grade criterion scores, manager selection, autogenerating paper and other aspects of psychological measurement, and much has been obtained. Therefore, computational intelligence has a conspicuous place in the psychological field.
    Articles
    Graph-based ranking model for object-level search
    LI Liang, LUO Qiming, CHEN Enhong
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  15-21.  doi:
    Abstract ( 220 )   PDF (397KB) ( 1138 )   Save
    Related Articles | Metrics

    Abstract: This paper proposes a novel domainindependent objectlevel ranking model. Given a set of objects and their

    relationships, this model provides a ranked list of objects based on their relevance to multiple query objects supplied by the

    user. We present a multi-plane object relationship graph to describe the space of objectlevel search, an algorithm for

    evaluating the popularity values of objects based on the object relationship graph, and an algorithm for evaluating the

    relevance ratings of objects based on the query object as well as merging multiple query objects. The effectiveness of this

    model is experimentally verified on the ACM data set. This model provides a better paper recommendation performance than

    PaperRank. This model also outperforms PaperRank on merging the relevance ratings of multiple query objects into a single

    vector.

    Fingerprint segmentation algorithm based on cotraining
    ZHOU Guang tong, YIN Yi long, GUO Wen juan, REN Chuan xiao
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  22-26.  doi:
    Abstract ( 251 )   PDF (608KB) ( 1378 )   Save
    Related Articles | Metrics

    Abstract: Fingerprint segmentation is one of the key preprocessing steps in an automated fingerprint identification

    system (AFIS). Effective segmentation of the fingerprint from the background could speed up following processes and improve

    recognition accuracy. However, in traditional segmentation algorithms, it is essential to obtain lots of labeled fingerprints,

    which are usually more expensive than unlabeled ones. To incorporate labeled and unlabeled data together, this paper proposed

    CoSeg, a semisupervised fingerprint segmentation algorithm. Under the view of pixellevel features, i.e. Coherence, Mean and

    Variance (CMV), CoSeg employs Label Box and SVM as two base learners and trains the final model for segmentation based on a co

    training style algorithm. Experiments performed on FVC 2002 databases show that CoSeg can effectively exploit unlabeled data

    with limited labeled data, and the proposed method is also robust when dealing with lowquality fingerprints.

    控制科学与工程
    Introduction to quantized feedback control and estimation
    Fu Min yue
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  33-40.  doi:
    Abstract ( 251 )   PDF (646KB) ( 796 )   Save
    Related Articles | Metrics

    This paper serves as a tutorial paper for a new area of research in control systems, namely, quantized feedback control and

    estimation. This area is motivated by the increasing need of incorporating communication networks in a control system. In such a

    framework, feedback information needs to be transmitted over a digital network, which results in a number of new challenges for

    estimation and control design. The focus of this paper is to introduce a number of recent results on the design of quantizers

    for the purposes of control design and state estimation. uantized feedback control, networked control, quantized estimation,

    robust control.

    Wireless sensor network for distributed target tracking: practices via real test bed development
    Yue Khing Toh1, XIAO Wendong2, XIE Lihua1
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  50-56.  doi:
    Abstract ( 259 )   PDF (635KB) ( 933 )   Save
    Related Articles | Metrics

    In the real world, centralized tracking in a largescale wireless sensor network (WSN) may not be feasible due to the possible

    failure of fusion centre and the large communication delay in forwarding measurement data to the fusion centre. Distributed

    target tracking techniques can be employed by tasking sensor nodes near to the target to perform sensing, target state

    estimation and selection of future tasking sensor nodes. In this paper, the development and implementation of a prototype

    ultrasonic WSN testbed to demonstrate distributed target tracking using the Extended Kalman Filter (EKF) algorithm is

    described. In the testbed, a mobile robot is used to simulate the moving target, and static/mobile sensor nodes are deployed

    to detect and track the target. The sensor nodes and robots are equipped with sonar and MICAZ to receive and process

    instructions. Experimental evaluation of a number of sensor scheduling schemes are reported which shows the superior tracking

    performance of our distributed competition based sensor scheduling scheme.

    Articles
    The effect of excise tax control strategy on the supply chain system performance
    SUN Guohua, WU Yaohua, LI Wei
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  63-68.  doi:
    Abstract ( 222 )   PDF (276KB) ( 1155 )   Save
    Related Articles | Metrics

    Abstract: The excise tax is an important way to adjust the consumption and production of goods, which are considered to

    have negative externality or be luxuries. A twoechelon supply chain with one manufacturer and one retailer was set up. The

    effect of collection point of excise tax on the supply chain performance was studied when the excise tax with the same ad

    valorem tax and specific tax was levied on the manufacturer and the retailer. It was found that the performance of the supply

    chain and the tax revenue of the government were independent of the collection point when only the specific tax was charged. To

    decrease the consumption of the goods and increase the tax revenue of the government, the ad valorem tax should be included in

    the excise tax and the excise tax should be levied on the distributor.

    Finite gain stabilization of singlemachine infinite bus system subject to saturation
    SUN Weiwei, WANG Yuzhen
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  69-76.  doi:
    Abstract ( 222 )   PDF (219KB) ( 1106 )   Save
    Related Articles | Metrics

    This paper investigate the finite gain stabilization problem of the singlemachine infinite bus system subject to actuator

    saturation and input additive external disturbances. Based on Hamiltonian energy theory, this paper first transforms the power

    system model into a general Hamiltonian system model with dissipation. Then a static output feedback controller is considered

    for the obtained Hamiltonian system. Under some growth conditions, it is shown that the asymptotic stabilization, as well as the

    finite gain stabilization of the closed loop systems can be achieved. In establishing the results, an estimate of the finite

    gain is also obtained. Simulation shows the effectiveness of the stabilizing method proposed in this paper.

    Machinability analysis of Ti6Al4V alloy with PCBN tools in turning operations
    LIU Zhanqiang, AI Xing, LI Tiantian, WAN Yi
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  77-83.  doi:
    Abstract ( 248 )   PDF (1421KB) ( 2392 )   Save
    Related Articles | Metrics

    PCBN tools were used for the turning of TC4. The cutting forces and roughness for turned surfaces were measured and analyzed by

    using singlefactor turning experiments. Tool wear was measured under a microscope, SEM and EDS analyses were carried out on

    the worn tools to determine the tool wear mechanisms. Major tool failure patterns were crater wear, flank wear and notch wear

    due to adhesive wear, chemical wear and brittle fracture. The diagonal orthogonal regression experimental method was used to

    investigate tool life of PCBN for turning TC4 titanium alloys. The results have shown that PCBN tools at the cutting conditions

    of higher cutting speed, lower feed rate and lower depth of cut have a longer tool life, lower cutting force, better surface

    roughness, which means that PCBN tools are adapted in precision processes of machining the titanium alloy TC4.

    Vibration approximation for a complex builtup system comprising both longwavelength and shortwavelength substructures
    JI Lin
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  87-91.  doi:
    Abstract ( 232 )   PDF (342KB) ( 836 )   Save
    Related Articles | Metrics

    Abstract: This paper concerns the vibration approximation of complex builtup systems comprising both longand short

    wavelength substructures, for which the system vibrations are largely dominated by the socalled “midfrequency” vibration

    issues. In previous study, a modebased approach was presented for the vibration analysis of a system consisting of a long

    wavelength source and a shortwavelength receiver and validations were made by simple beamplate coupling models. In this

    paper, the approach is further analyzed and discussed. Numerical applications are made for more generic beamplate models. It

    is shown that the modebase approach is particularly suitable for such cases where there exists a big stiffness mismatch

    between the source and the receiver because of its much lower computational cost compared to the conventional FRFbased sub

    structuring numerical approach.

    材料科学与工程
    3D similar pattern generation of snow crystals with cellular automata
    LI Fangjia, GAO Shangce, TANG Zheng*, Ishii Masahiro, Yamashita Kazuya
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  102-105.  doi:
    Abstract ( 261 )   PDF (659KB) ( 1003 )   Save
    Related Articles | Metrics
    Computer simulation of snow crystal growing process has been done for many years. Cellular automaton is a computing model which is made from lattice cells and simple rules. Though it is a very simple model, it gives good results when used to imitate complex processes such as the life phenomenon, crystal growth and the turbulent flow. In this paper, a cellular model for 3Dimensional snow crystallization was proposed by extending the traditional 2Dimensional cellular model. Simulation results indicated that the proposed model can accurately simulate most 3Dimensional snow crystallization processes.
    Articles
    Superconductivity in nickelbased bismuthide GdONiBi and hole doped Gd0 0.9 Sr0.1 ONiBi
    GE Junyi1, QIN Xiaoling1, CAO Shixun1, YUAN Shujuan1,2, ZHANG Jincang1
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  106-109.  doi:
    Abstract ( 261 )   PDF (903KB) ( 737 )   Save
    Related Articles | Metrics

    Abstract: The nickelbased compound GdONiBi was successfully synthesized with superconducting transition temperature about 45 K. By partially substituting the element Gd with Sr to introduce holes into the material, a new superconductor Gd09Sr01ONiBi was obtained with critical temperature about 47 K. The normal state resistivity in nickelbased samples shows a metallic behavior. The magnetoresistance measurements show a different behavior compared to those in ironbased compounds which may indicate that the mechanism in the two kinds of superconductors maybe different.

    材料科学与工程
    Direct evidence of extrinsic behavior for lowtemperature resistivity minimum from colossal magnetoresistance La2/3Sr1/3MnO3 single crystal
    JIA Rongrong, ZHANG Jincang*, FENG Zhenjie, WANG Shipeng, CHEN Changzhao, JING Chao, CAO Shixun
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  110-113.  doi:
    Abstract ( 211 )   PDF (582KB) ( 1137 )   Save
    Related Articles | Metrics
    Abstract: In order to clarify the physical mechanism of the lowtemperature resistivity minimum observed in polycrystal and epitaxy films of manganites, the single crystal La2/3Sr1/3MnO3 were studied, which were fabricated in Ar atmosphere by opticalfloatingzone method. The transmission electron microscopy and the temperature dependence of resistivity were measured before and after annealing. The physical properties of the single crystal were markedly influenced by annealing treatment. The most interesting of all is the resistivity minimum at low temperature vanished after annealing treatment both along the c axis and ab plane. Consequently, it is reasonable that the lowtemperature resistivity minimum is an extrinsic phenomenon, which is caused from spin disorder scattering.
    Articles
    The effect of phase transformation on laser induced damage threshold of ZrO2/SiO2optical coatings
    WU Shigang
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  114-117.  doi:
    Abstract ( 219 )   PDF (1045KB) ( 1567 )   Save
    Related Articles | Metrics

    ZrO2/SiO2and YSZ/SiO2 optical coatings were prepared by the electronbeam evaporation method, and structural properties and

    laser induced damage threshold(LIDT) were measured. These results indicate that during the course of electron beam thermal

    evaporation, the Y2O3 stabilized ZrO2 material did not have a phase transformation, while the unstabilized ZrO2 material did,

    which can result in defect increase and LIDT decrease. It was found that defects by phase transformation is the main reason for

    the difference of damage threshold between high reflect thin film YSZ/SiO2and ZrO2/SiO2.

    Absorption spectra of calcium hexaboride nanopowders
    LIANG Limei, ZHANG Lin, MIN Guanghui
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  118-121.  doi:
    Abstract ( 232 )   PDF (522KB) ( 1209 )   Save
    Related Articles | Metrics

    Abstract: Calcium hexaboride (CaB6) nanopowder was prepared by low temperature chemical reaction of CaCl2 and NaBH4. X

    ray powder diffraction pattern indicated the formation of CaB6 crystal, the field emission scanning electron microscope (FESEM)

    image showed that CaB6 nanopowder was agglomerated with cubic crystals with grain size of ~80?nm. HRTEM photographs indicated

    that the nanoparticles were singlecrystal corresponding to the FESEM and XRD results, and the CaB6 crystal consisted well

    crystallized CaB6 core and thin amorphous shell (4~5?nm). Fourier transform Infrared (FTIR) and UltravioletVisibleNear

    Infrared (UVVISNIS) spectra were investigated to characterize optical properties of CaB6 nanopowder, compared with

    micrometer CaB6 powders. Compared with the weak absorption bands of micronpowder, obvious Einstein shift and band broadening

    occurred in nanopowder spectrum, which was thought to be related to lattice expansion and nanometer effect. UVVISNIS

    spectrum showed that CaB6 nanopowder could absorb ultraviolet rays and the absorption peaks exist blue shift of spectrum,

    compared with micron powder. In conclusion, CaB6 nanopowder showed absorbency within all the detected regions in FTIR and UV

    VISNIS spectra, especially to the infrared.

    Simulation of characteristics of silicon solar cells and its maximum power point tracking
    YANG Gang, CHEN Ming
    JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2009, 39(1):  122-122.  doi:
    Abstract ( 248 )   PDF (948KB) ( 1913 )   Save
    Related Articles | Metrics

    Abstract: A model of silicon solar cells based on its output characteristic was built in this system, by using LabVIEW

    as software. Output characteristics of silicon solar cells and the maximum power point tracking system were simulated under

    different solar intensities. The influence of the dark current on the maximum power point and the fill factor of silicon solar

    cells were also simulated. The simulation results verify the nonlinear output characteristics of silicon solar cell, and the

    effectiveness of this system in determining the most appropriate load to stabilize the maximum power point of the cell. And the

    conclusion that the correlation between the optimum matched resistance and the solar intensities is hyperbola, which was drawn

    by analyzing the simulation results. It was also proved by the results that the dark current is a key factor to the maximum

    power point and the fill factor of silicon solar cells.