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  • , Volume 31 Issue 4 Previous Issue    Next Issue
    Forum on Extension
    Connections Between Extension Logic and Refined Neutrosophic Logic
    Florentin Smarandache
    Journal of Guangdong University of Technology. 2014, 31 (4): 1-5.   DOI: 10.3969/j.issn.1007-7162.2014.04.001
    Abstract    HTML ( )   PDF(515KB)
    The aim of this presentation is to connect Extension Logic with new fields of research, i.e. Fuzzy Logic and Neutrosophic Logic.It shows herein: How Extension Logic is connected to the Three-Valued Neutrosophic Logic,How Extension Logic is connected to the Four-Valued Neutrosophic Logic,How Extension Logic is connected to the n-Valued Neutrosophic Logic,when contradictions occurs. As extension transformation one uses the normalization of the Neutrosophic Logic components.
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    Extension of the Product Design Scheme and Knowledge Inference
    ZHANG Yan, WANG Jun, ZHAO Yan
    Journal of Guangdong University of Technology. 2014, 31 (4): 6-13.   DOI: 10.3969/j.issn.1007-7162.2014.04.002
    Abstract    HTML ( )   PDF(625KB)
    Computer technology to simulate the extended thinking in product scheme design is adopted to devise quickly more design schemes with higher quality. An innovative principle for scheme extension was presented, based on Extension network. The Extension network was defined to integrate the extension rules. The probable conflicting forms and their resolutions of the Extension network were advanced. The knowledge inference system, involved when the principle was applied in the intelligent system, was given from the perspective of artificial intelligence/knowledge engineering. The inference algorithm for utilizing the inference rules, based on Extension network, was given. The validity of the algorithm was analyzed. A case study shows that more alternative design schemes can be obtained by applying knowledge inference, based on Extension network, which means more probability of innovation is provided.
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    Research on ESGS Contradiction Problem Modeling
    WANG Zhong-Fei, LI Wei-Hua, TAO Xing
    Journal of Guangdong University of Technology. 2014, 31 (4): 14-19.   DOI: 10.3969/j.issn.1007-7162.2014.04.003
    Abstract    HTML ( )   PDF(1946KB)
    The previous extension generating system software can only be used to solve some kind of contradiction problems. Through the analysis of the existing problem modeling methods and their shortcomings, it presents a new modeling method, based on the idea of classification. A detailed description of the problem classification modeling steps was given, and finally implemented in programming. Experimental results show that the new modeling method can be used to classify different kinds of contradiction problems in some areas. As a result, it not only creates a universal input interface to the extension strategy generating system, but also has great practical significance for the versatility of research on the Extension Strategy Generating System.
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    Comprehensive Studies
    Research on the Transportation Plan of the Thirdparty Recycling Logistics Enterprises in the Remanufacturing Environment
    ZHONG Ying-Hong, HUANG Xin
    Journal of Guangdong University of Technology. 2014, 31 (4): 20-25.   DOI: 10.3969/j.issn.1007-7162.2014.04.004
    Abstract    HTML ( )   PDF(547KB)
    The rise in reverse logistics promotes the growth of third-party logistics recycling businesses responsible for the collection, storage and transport. Based on the analysis of impact factors on the cost of recycling enterprises, it discussed the alternate running of forward logistics and reverse logistics, and studied the optimization of the problems with transportation and inventory plans of recycling businesses via the employment of the EOQ model. Finally, a numerical example was given to examine the proposed model.
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    Exploring Influential Risk Factors of SaaS Adoption from the Perspective of DEMATEL Approach
    WU Ju-Hua, GAO Sui, LI Pin-Yi, MO Zan
    Journal of Guangdong University of Technology. 2014, 31 (4): 26-30.   DOI: 10.3969/j.issn.1007-7162.2014.04.005
    Abstract    HTML ( )   PDF(405KB)
    With the advantages of advanced technology and low costs, Software as a Service (SaaS) is regarded as a favorable means to facilitate a modern organization’s IT performance and competitiveness. However, many organizations may be still unwilling to employ SaaS mostly due to the concern about the subsequent potential risks. Therefore, an analysis of risk factors has been an important part of the SaaS adoption in decision-making. It utilized Decision Making Trial and Evaluation Laboratory (DEMATEL) approach to define security risk and IT governance risk as two distinct affecting issues so that a causeeffect diagram and a visual SR-GR matrix could be developed respectively for a quantitative analysis of risk factors. The results show that the core of matters of SaaS adoption not only lies in its authentication and authorization, but it is also affected by the Right of IT control. By identifying key influential factors and calculating the index of the combined effects of various factors, it provides practical guidance for SaaS adoption and further exploration of the cause and effect relationship among factors.
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    The Indirect Effect Mechanism of Information Sharing on Operational Performancethe Mediating Role of Supply Chain Collaboration
    LIAO Nuo, DENG Wei, ZHOU Wei-Lang, XIE Xi-儿, LIN Dong-Bing
    Journal of Guangdong University of Technology. 2014, 31 (4): 31-35.   DOI: 10.3969/j.issn.1007-7162.2014.04.006
    Abstract    HTML ( )   PDF(341KB)
    In order to know the indirect effect mechanism of information sharing on operational performance, it proposed the theoretical model of the relationship between supply chain information sharing and operational performance with supply chain collaboration as the mediating role, and empirically tested it with the use of the structural equation model. The results show that information sharing content affects its quality, and that there are two indirect paths in the relationship between information sharing and operational performance, the first one being “content of information sharingsupply chain collaborationoperational performance”, the other one being “quality of information sharingsupply chain collaborationoperational performance”, which provides evidence that there is indirect positive impact of information sharing on operational performance with supply chain collaboration as the mediating role.
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    A Security Cloud Storage Scheme Based on Cipertext Policy Attributebased Encryption
    LUO Ming-Yu, LING Jie
    Journal of Guangdong University of Technology. 2014, 31 (4): 36-40.   DOI: 10.3969/j.issn.1007-7162.2014.04.007
    Abstract    HTML ( )   PDF(355KB)
    Regarding the security problem with cloud storage, it proposed a security cloud storage scheme, based on cipertext policy attributebased encryption. A trusted third party was introduced between the terminal and the cloud server in order to solve the problems of large load, heavy burden of key distribution and management. It ensured the data security of the cloud storage system in an incomplete security environment. The results show that it can keep the data security and reduce the load on the terminal, which is in accordance with the developing trend of cloud storage service.
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    Research on Business Intelligence System with the Big Data for Retail Industry
    DU Han-Chang, DING Lei, FENG Yong-Jin
    Journal of Guangdong University of Technology. 2014, 31 (4): 41-45.   DOI: 10.3969/j.issn.1007-7162.2014.04.008
    Abstract    HTML ( )   PDF(899KB)
    For demanding of large data processing and business intelligence of retail proposing a big data business intelligence system architecture. The architecture that includes bigdata processing and business intelligence application. The system modules are described in detail, data processing in the system and introduce some requirements of data analysis about retail industry.   Implementing a system of intelligence business and design an application of improving the sales of products for retail industry based on the architecture we propose.The experimental result shows that the business intelligence system we developed can enhance decisionmaking of improving the sales of goods for retail industry based on the architecture we propose.
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     Metadata Management  of Cloud Storage Platform Based on Sensitive Information SelfManagement
    XU Qing-Lin, QIN Guo-Min, JIANG Wen-Chao, XIE Yan-Li
    Journal of Guangdong University of Technology. 2014, 31 (4): 46-53.   DOI: 10.3969/j.issn.1007-7162.2014.04.009
    Abstract    HTML ( )   PDF(1192KB)
    Considering the sensitive information security issue on the traditional cloud storage platform,  It divided metadata management into two parts , the client side metadata managementSub-Metadata Server(Sub-MS) and the cloud side metadata management-Core Metadata Server(CMS). Sub-MS aimed to extract independently ,maintain,read and write and store the metadata with sensitive information, which used the random redundancy algorithm in maintaining mapping relations, based on the redundancy between files and data blocks, to improve the files storage security. At the same time, Sub-MS used the request synchronism strategy to keep the consistency of mapping relations from data blocks to Data Server(DS)between Sub-MS and CMS, to insure the stability and reliability of the whole storage system. With multi-user concurrent access, the experiment about performance of reading and writing for the data sets of different sizes indicates that compared with HDFS and GFS, SISM still has good reading and writing performance and data persistence capabilities in managing metadata of sensitive information by itself.
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    Prediction of  Atmospheric Temperature Based on Multi-classifiers of Decision Tree
    LI Jun-Lei, TENG Shao-Hua, ZHANG Wei
    Journal of Guangdong University of Technology. 2014, 31 (4): 54-59.   DOI: 10.3969/j.issn.1007-7162.2014.04.010
    Abstract    HTML ( )   PDF(382KB)
    Meteorological data mining has been a hot research spot recently. Combined classifiers can be used in collaborative computing to improve the efficiency and accuracy. Based on C4.5 classic algorithm and the bagging integrated method, it constructed a cooperative decision tree, and proposed a decision tree model for multi-classifiers to predict the air temperature. Experimental results show that the cooperative model for the prediction of local area atmospheric temperature, based on multi-classifiers of the decision tree, has higher accuracy than others.
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    Adaptive Fuzzy Control for a Class of Uncertain Linear Systems
    JIE Yuan, JIN Chao-Yong
    Journal of Guangdong University of Technology. 2014, 31 (4): 60-64.   DOI: 10.3969/j.issn.1007-7162.2014.04.011
    Abstract    HTML ( )   PDF(778KB)
    An adaptive fuzzy control approach was proposed for a class of linear systems with uncertainty and disturbance. Firstly, the uncertainties of systems were normalized and processed. Then, the fuzzy logic system was employed to estimate the uncertainties of the system. Meanwhile, the unknown parameters of the fuzzy logic system were estimated and the corresponding adaptive laws were synthesized. The fuzzy adaptive controller not only reduces the number of adaptive laws but also ensures the state of the systems controlled and errors of parameter estimate are uniform and ultimately bounded (UUB). The simulation experiment demonstrates the effectiveness of the control method.
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    Existence of Periodic Solutions for Nonlinear Neutral Differential Equations with Functional Delay
    HUANG Ming-Hui
    Journal of Guangdong University of Technology. 2014, 31 (4): 65-68.   DOI: 10.3969/j.issn.1007-7162.2014.04.012
    Abstract    HTML ( )   PDF(264KB)
    It used a variant of Krasnoselskii’s fixed point theorem to show the existence of periodic solutions for nonlinear neutral differential equations with functional delay. The results were obtained by generalizing previous results of Dib and Maroun. An example was given  to illustrate the results.
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    The Implicit Difference Scheme of Eight Points for Solving the Parabolic Equations
    ZHOU Min, GAO Xue-Jun, DONG Chao
    Journal of Guangdong University of Technology. 2014, 31 (4): 69-73.   DOI: 10.3969/j.issn.1007-7162.2014.04.013
    Abstract    HTML ( )   PDF(312KB)
    Solutions to the initial boundary value problem with onedimension parabolic equations were presented. On the basis of mesh,an implicit difference scheme with multiple variables was given by the undetermined parameters method. Then, it was expanded with Taylor series by combining the characteristics of partition differential equations in xjtn, to reach certain accuracy. Finally, parameters of the equation were determined. Via this method, an implicit difference scheme of two layers and eight points for solving parabolic equation was constructed. The order of truncation error was O(τ3+h5), and the stability condition was 0.001<r<0.231 or 0.236<r<0.772. The corresponding numerical example has been given to demonstrate the feasibility and effectiveness of the proposed method.
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    Anti-periodic Solutions for the First Order Nonlinear Evolution Equations in Hilbert Space
    CHEN Xiao-Ling, WU Liu-Chan
    Journal of Guangdong University of Technology. 2014, 31 (4): 74-78.   DOI: 10.3969/j.issn.1007-7162.2014.04.014
    Abstract    HTML ( )   PDF(313KB)
    It gave a new proof method of Alain Haraux’s theorem which was obtained by studying anti-periodic solutions to some nonlinear evolution equations in 1989. Then, it studied the existence and uniqueness of anti-periodic solutions for a class of the first order semilinear evolution equation.
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    Common Fixed Point Theorems for Four Mapsin the Cone Metric Spaces
    CHEN Pan, KONG Wei-Ming, YANG Li-Ping
    Journal of Guangdong University of Technology. 2014, 31 (4): 79-84.   DOI: 10.3969/j.issn.1007-7162.2014.04.015
    Abstract    HTML ( )   PDF(310KB)
    The existence and uniqueness of the common fixed points for four maps in the complete cone metric space are discussed.The main results in the papers improve and generalize the conclusions of a pair of self-mappings in the cone metric space.
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    Research on the Mini U-Boot of the Embedded System Based on S3C2440
    WU Wei, ZHOU Yan-Zhou
    Journal of Guangdong University of Technology. 2014, 31 (4): 85-89.   DOI: 10.3969/j.issn.1007-7162.2014.04.016
    Abstract    HTML ( )   PDF(576KB)
    The embedded system is limited by system resources for its hardware and operating environment. It proposes the design of U-Boot with low system resources. By initializing the experimental platform and setting the software environment, it used the kernel of Linux on version 2.6.30.4. The U-Boot size is only 2.32 kB. Thus, the U-Boot, which uses fewer system resources on the embedded system, leaves more resources for other modules and makes the embedded system more powerful.
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    The Method of Removing Burrs in Skeleton Extraction
    WANG Wan-Xin, JIA Li-Feng
    Journal of Guangdong University of Technology. 2014, 31 (4): 90-94.   DOI: 10.3969/j.issn.1007-7162.2014.04.017
    Abstract    HTML ( )   PDF(1166KB)
    To remove the burrs that occurred in skeleton extraction, it explains and verifies the solution of skeleton endpoints form a closed area. The skeleton at the intersection point was labeled and separated according to the various characteristics of burrs, Through the feature extraction, the conditions of eliminating burrs were set, and then sixteen structuring elements were designed according to the three principles-the similarity of shape, the covering of size and the composition of the different structuring elements, combined with the method of thinning by using structuring elements to remove the burrs absolutely. Lastly, these fiber segments were connected after the burrs were removed at the breakpoint according to the labels. The results show that this method can effectively solve the problems which are to eliminate the body and the end of skeleton because of wrong judgment, making as much of the main information about skeleton as possible retain, This method has certain feasibility and practicability.
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    Design and Simulation of Scattering Netted Dots on Light Guide Plate of Side-incident LED Backlight
    LIN Xiao-Xin, XIANG Ying, PANG Xiao-Feng
    Journal of Guangdong University of Technology. 2014, 31 (4): 95-99.   DOI: 10.3969/j.issn.1007-7162.2014.04.018
    Abstract    HTML ( )   PDF(2371KB)
    With LED selected as the light source of side-incident light guide plates, it solves the difficult problems with the design of scattering netted dots with various distances on light guide plates of side-incident LED backlight efficiently by deriving a rule of scattering netted dots arrangement, based on the optics theories such as total reflection, refraction and the principle of luminous flux conservation. The critical array pitch of LED is deduced, which can effectively eliminate the different light intensity caused by LED arrays. Then, the optical design software TracePro was used to establish the physical simulation model. Through repeated experimental investigation, optimum parameters have been obtained. The simulation results show that the illumination uniformity of the designed light guide plate is close to 93%(over 80%), which satisfies the requirements of the national illumination standard.
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    Design of a Compact Internal Multiband Loop Antenna for Mobile Handset
    DAI Chuan-Di, WU Duo-Long, WU Yan-Jie, LI Yu-Biao, LIN Qing
    Journal of Guangdong University of Technology. 2014, 31 (4): 100-103.   DOI: 10.3969/j.issn.1007-7162.2014.04.019
    Abstract    HTML ( )   PDF(1742KB)
    The design of a compact internal multiband folded loop antenna for GSM850/900/GPS/DCS1800/PCS1900/UMTS2100 multiple mobile operation has been proposed. The whole antenna structure consists of a single folded meander loop track and a T-shape back-coupling element, whereas the loop pattern is activated through the electromagnetic coupling mechanism by the T-shape element which is connected to the microstrip feeding line. The size of the total structure is 114 mm×61.6 mm×6 mm, meanwhile the area left for the loop track is only 61.6 mm×15 mm×6 mm. The compact structure makes the design very suitable for the mobile phone requirements for slim space. The design and optimizing of the performance of the proposed antenna were performed by using the simulator software HFSS. An actual model has been prototyped for testing. Measured and electromagnetic simulated results are in good agreement, thus indicating that the proposed antenna can meet the actual demands.
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    A Method to Calculate Junction-Temperature of MCM’s Chips under the Condition of Air Conv
    WENG Jian-Cheng, HE Xiao-Qi, ZHOU Bin, LIU Gang-Gang, ZHAO Lei, EN Yun-Fei
    Journal of Guangdong University of Technology. 2014, 31 (4): 104-108.   DOI: 10.3969/j.issn.1007-7162.2014.04.020
    Abstract    HTML ( )   PDF(1051KB)
    It investigated the influence of heat exchange between each chip on MCM, and presented the mathematical calculation method for the junction-temperature of MCM chips under the condition of air convection, based on junction-ambient thermal resistance matrix. Comparison between the results of ANSYS finite element simulation and calculated results via this method under different combination conditions shows that the error margin of junction-temperature forecast by junction-ambient thermal resistance matrix is less than 6%, which indicates that the junction-ambient thermal resistance matrix can be applied to heat analysis for MCM to some extent.
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    Dielectric, Ferroelectric and Piezoelectric Properties of theBa(Zr0.06Ti0.94)O3-BiFeO3 Composite Ceramics
    WANG Yi-Guang, DING Nan, TANG Xin-Gui
    Journal of Guangdong University of Technology. 2014, 31 (4): 109-114.   DOI: 10.3969/j.issn.1007-7162.2014.04.021
    Abstract    HTML ( )   PDF(1506KB)
    Ba(Zr0.06Ti0.94)O3-x%BiFeO3 (with x=0.2,0.4,0.6,0.8) composite ceramics were prepared by the traditional solid-state reaction method. The structural, dielectric, ferroelectric and piezoelectric properties of the ceramics were investigated. XRD results show that all the ceramics show typical tetragonal perovskite structures, with various lattice parameters induced by different amounts of BiFeO3 concentration. The dielectric permittivitytemperature curve shows that, both the temperature of phase transition and the value of dielectric permittivity have been affected by theBiFeO3 concentration. It has been found that, at the room temperature, dielectric permittivity of the ceramics increases with the increase of the BiFeO3 concentration. And the diffuse phase transition has been observed in the ceramics. Besides, all samples show clear ferroelectric and piezoelectric characteristics, and these characteristics change in the same trends along with the BiFeO3 concentration.
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    Finite Element Programming for the Superposed Element Used to Analyze Consolidation of Soil
    SHI Hong-Yan, LIU Shan-Shan
    Journal of Guangdong University of Technology. 2014, 31 (4): 115-120.   DOI: 10.3969/j.issn.1007-7162.2014.04.022
    Abstract    HTML ( )   PDF(388KB)
    To meet the different order needs of displacement and pore-pressure shape functions in consolidation problem analysis, it used the superposed element, formed by superposing two elements with the same geometry but different nodal numbers and nodal degree of freedom numbers. Based on the careful comparison of the difference between the superposed element and the ordinary element, the programming method and some SUBROUTINEs designed by FORTRAN77 were given for the superposed element. The feasibility of the method has been proved by giving two examples.
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    Analysis and Variations of the Nutrient Status of  Two Municipal Lakes in Guangzhou
    GUO Yan, WANG Zhi-Hong, LIU Li-Fan, RUAN Cai-Qun, LUO Ke-Shu
    Journal of Guangdong University of Technology. 2014, 31 (4): 121-126.   DOI: 10.3969/j.issn.1007-7162.2014.04.023
    Abstract    HTML ( )   PDF(1731KB)
    The water quality and algae quantity of Lakes A and B in HEMC were monitored during Nov 2011 to Oct 2012. Assessed by the method of marking, Lakes A and B were at the level of heavy eutrophication, the water quality tended to exacerbate, and the nutrients accumulated gradually during the research period. The water quality and its fluctuation were related with the surface shape and surrounding environment and lakeshore of the lakes. The shoreline index developments of Lakes A and B were 1.91 and 1.38, so it was easy for them to be rich in eutrophication. The variations of algae quantity in one year were similar in both lakes, remaining steady at 105, algae were in rapid proliferation from March to July, and their quantity reached an annual peak in July, which was influenced by the climate, lake functional planning , and the concentration and proportion of constant and trace nutrients. 
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    Absorption of Fe3+ from the Condensed Water by Activated Carbon Fibers
    ZHONG Xuan-Bin, GUO Jian-Wei, FU Bao-Lin, PENG Jin-Ping, YANG Yu-Cheng-
    Journal of Guangdong University of Technology. 2014, 31 (4): 127-131.   DOI: 10.3969/j.issn.10077162.2014.04.024
    Abstract    HTML ( )   PDF(530KB)
    The absorption performance of Fe3+ on the surface of activated carbon fibers (ACF) was investigated by static and dynamic absorption experiments. The breakthrough curves of dynamic absorption in various experimental conditions were studied, and the surface morphology before and after Fe3+ absorption of ACF were investigated by scanning electron microscopy (SEM). The results show that the absorption process is composed of physical absorption and chemical absorption, and that the absorption capacity can be improved by increasing the surface area of ACF and the temperature of the reaction solution. In the dynamic absorption process, the treated water of the best quality is obtained when the flow rate is of 10 mL/min.
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     Antioxidant Activities of Extracts from Momordica Charantia L
    LV Ya , HAN Ya-Li
    Journal of Guangdong University of Technology. 2014, 31 (4): 132-137.   DOI: 10.3969/j.issn.1007-7162.2014.04.025
    Abstract    HTML ( )   PDF(379KB)
    In vitro antioxidant activities of extracts from Momordica charantia L were studied. The Colorimetric method with Salicylic acid, Pyrogallol autoxidation method and DPPH·method were used to study in vitro antioxidant effects of the above extracts. The results show that the three radicals can be eliminated by the extracts from Momordica charantia L. The extracts of Momordica charantia L  possess distinctive antioxidant activities.
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