bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of 500W Safety Photovoltaic Off-Grid Inverter for Family
Authors: Wang You Huan , Liu Ning , Xia Dong Wei
Published: October 2014

In order to address and meet the needs of people in these regions without electricity, we designed a small 500W off-grid PV-inverter. The main circuit includes battery charge and discharge circuit, and two-stage converter topology isolated. The digital processor TMS320F28023, high-performance and low-cost, is used to achieve maximum power point tracking (MPPT) of PV modules and charge control for battery. The experimental results of the prototype show that this design with high-precision and high-efficiency, meets the design requirements.
Analytical Study on the Effect of Coordinated Application of Distributed Grid Connection and SVG on Wind Farms to Increase Power Quality in Fuxin Rural Power Grid
Authors: Liu Cun Guo , Wang Yu Peng , Ye Qing , Liu Tao , Shu Bai Chao , Yu Hao , Wang Shu Han , Chen Jia Yong
Published: October 2014

power quality problems such as high line loss, low voltage exist commonly in rural power grid of China due to few supply points, long power transmission and distribution line. Huge fund is required to increase the quantity of supply points in rural power grid; installation of var compensators on line nodes could not solve power quality problems on the whole line. At the same time, as distributed power supply, wind power is also restricted by peak regulation, insufficient line output capacity and other factors in large scale centralized grid-connected output, wind curtailment often occurs. In order to solve the above-mentioned two problems simultaneously, electric power of wind farm may be output via nearby rural power grid line, thus not only utilization rate of wind power is increased, but also power quality of rural power grid is improved.This paper takes an example of a district in Fuxin City, summarizes power quality change data of relevant rural power grid before and after the distributed grid connection of wind farm is made, the analysis shows that distributed grid connection of wind power could improve load flow distribution of the power system, reduce system transmission loss in this district obviously, increase economical efficiency of the system operation effectively. At the same time, effectiveness of static var generator in substation to overcome the impact of such grid connection mode on power grid is verified.
Distributed Renewable Energy Access to Micro-Grid System Random Multi-Objective Economic Dispatch
Authors: Xu Ming , Xiang Wen Bin
Published: October 2014

With the development of distributed generation technology rapidly, a large number of wind, solar and other renewable energy access to access system . Since renewable energy is intermittent and stochastic, which posed economic dispatch system a serious challenge. Consider the system operating costs and sewage expenses, the paper constructs multi-objective micro-grid system economic dispatch model composed by the wind turbine, diesel engine, battery and load. And through MATLAB / Simulink simulation, model is established to verify the correctness and effectiveness.
Reserve Capacity Optimization of Large Scale Wind Power Integration
Authors: Tang You  Jia , Tan Lun Nong
Published: October 2014

The traditional method of power system reserve capacity is not suitable for the power system with large-scale wind power integration. This paper analyzed the prediction error of wind power, the introduction of the system reliability index, established a correlation mode between wind power prediction error and the spare demand change; the introduction of interruptible load to replace part of the reserve capacity, combining probability of the using of spare capacity in historical data, according to the standby capacity demand use of decision theory expected value method is used to solve the optimal reserve. The practical examples prove that the algorithm is feasible.
Research on Dynamic Scheduling of Grid Monitoring Data Processing Tasks Based Storm
Authors: Yuan Shao Guang , Zhu Yong Li , Zhou Guo Liang , Wang Ming Kun
Published: October 2014

Development of smart grid spawned the big data in electric power industry, the cloud computing platform provided the solution for the big data in electric power industry, it has a significant effect for batch jobs, but its real-time is not guaranteed. For the real-time problem of cloud computing platform, the Storm platform will be introduced to monitor the grid power. This paper studies the fair share scheduling algorithm under the Storm platform. It introduced the concept of Storm framework briefly, then, proposed the fair share scheduling algorithm according to the lack of current Storm scheduling algorithm, finally, the experiment proved that the scheduling algorithm based on fair share improved the resource utilization of Storm cluster and reduced the processing delay of the data.
Fault Diagnosis of Power Electronic Circuit Based on Hybrid Intelligent Method
Authors: Yan Ren Wu , Dai Jian Min
Published: October 2014

Because of the problems of fault diagnosis in the power electric circuit and the merit of FCM is efficient in clustering and the merit of hidden Markov model (HMM) that have the ability to deal with continuous dynamic signals and the merit of support vector machine (SVM) with perfect classifying ability, With the features extracted from the circuit, based on the trained FCM algorithm, HMM was used to calculate the matching degree among the unknown signal and the circuit’s states, which formed the features for SVM to diagnosis. Double-bridge 12-pulse rectifier is used as a example to verifiy the effectiveness of the method. The experimental results show that the proposed method has a good correct rate.
Frequency Regulation of Power System Considering PEVs
Authors: Xiang Wen Bin , Xu Ming
Published: October 2014

As a distributed controllable loads, Plug-in electric vehicles (PEVs) connecting to the smart grid and participating in frequency regulation is drawing more and more attention. Depending on Vehicle-to-Grid (V2G) technology to realize the energy interaction between PEVs and the power grid, a dynamic control model of PEVs is proposed by considering the dynamic characteristics of the battery charging/discharging, and the dynamic model consider PEVs participating in frequency regulation is established. Finally, through the SIMULINK simulation based on the model, it demonstrates that the model responds well to the system frequency deviation, and it is important to improve frequency stability and realize the rapid recovery of power system.
Research on Wind Power Compensation Ratio of Vanadium Flow Battery Based on Power Optimization
Authors: Wang Xiang Ming , Meng Jing , Bin Kun
Published: October 2014

Because of the high spending and better smoothing affect of VRB, studying the wind power compensation ratio of VRB system become more and more important. The paper proposes a new way to get the power compensation ratio of VRB system, through analyzing the transient stability influence on wind speed fluctuation. Make use of PSASP for transient stability analyzing and observe the smooth affect of the wind disturbance based on the model of IEEE-14. The performance of the proposed method has been evaluated with the comparison of transient stability analyze, the comparison demonstrates the wind power compensation ratio of VRB system.
Study on Li-Ion Battery Intelligent Management System Based on AGV
Authors: Zhang Hao Ming , Li Hong , Peh Lian Soon
Published: October 2014

Li-ion battery, with the advantage as small size, large power density, high individual voltage, low self-discharge rate, and low internal resistor so on, substitutes the traditional power battery used in AGV system. In the practical application, Li-ion battery discharge with large current after a period of time, the upper voltage of every cell will be non-consistency, and the power system will work abnormally. In the case, the intelligent management of li-ion battery is designed.Experiment result improves that the system can effectively protect the li-ion battery and realize the energy feedback.
Synthesis of 4-(2-(Piperazin-1-Yl)-7,8-Dihydro-5H-Thiopyrano[4,3-d]Pyrimidin-4-yl)Morpholine and 4-Morpholino-2-(Piperazin-1-Yl)- 7,8-Dihydro-5H-Thiopyrano[4,3-d]Pyrimidine 6,6-Dioxide
Authors: Xu Shan , Sun Cheng Yu , Lei Fei , Tu Yuan Biao , Zeng Wei Peng , Xia Hui , Zheng Peng Wu , Zhu Wu Fu
Published: October 2014

Two novel thiopyrano [4,3-d] pyrimidine derivatives 7 and 8 were synthesized from dimethyl 3,3'-thiodipropanoate through six steps including two times of cyclization, chlorination, oxidation, substitution with morpholine and piperazine and their structures were confirmed by1H NMR and MS spectrum. The total yield of the six steps was 18.6% (calculated from methyl dimethyl 3,3'-thiodipropanoate). The synthetic routes of them can be used to synthesize PI3K/mTOR inhibitors bearing a thiopyrano [4,3-d] pyrimidine nucleus.
Condition Management of High-Speed Railway Infrastructure Based on Full Life Cycle
Authors: Wang Nai Zhen
Published: October 2014

A large number of historical data shows, equipment condition of high-speed railway showing a bathtub curve shape. Data on equipment state stored in different management departments, and the infrastructure management of railway design, construction stage and operation stage are disjointed. The above problems make the exploration of the equipment lifetime distribution difficulty, make equipment repair cycle is difficult to forecast. This paper presents the whole life cycle of equipment management based on the theory of high speed railway and present a personalized modeling for high speed railway equipment condition deterioration, and application in the high-speed rail grid management information system.
Countermeasures and Suggestions for Planning and Construction of New Rural Communities
Authors: Su Cong Cong
Published: October 2014

The construction of new rural community is to satisfy these demands by rural residents to gradually break the urban-rural dual structure, thereby allowing them to share the physical and spiritual civilization achievements caused by economic development and social progress. In this paper, on the basis of summarizing the practical experiences of foreign such as Germany, England, USA, France, Japan and South Korea, and some cities of China rural construction, it explores the deep-seated problems of planning and construction of new rural community, in order to smoothly promote the planning and construction progress of the new rural community in our country.
Crack Propagation of Jointed Rock and Application
Authors: Wang Qing Han , Li Shu Cai , Li Li Ping , Wang Jing , Zhang Qian
Published: October 2014

The excavation engineering in jointed rock masses, due to the changes in its original stress state, the preexisting fissures will expand and new fissures may emerge, which will degrade its mechanical and strength properties. This paper uses the DDARF method to preinstall fissures of different numbers and spacing in the rock block, then studies the crack initiation, expansion, transfixion and the destruction process by numerical modeling experiment, and finds the relevant stress strain curve. It also studies the influence of the numbers of fissures and different spacing and the influence of lateral compression on the test specimen to find the strength envelope of the test specimen. The parameters are applied in a case study. The differences in the failure behaviors of the intact and jointed rock masses after cavern excavation are analyzed and compared.
Discussion of the BIM Implementation Mode in Real Estate Development Companies
Authors: Qie En Tian , Jiao Yuan Yuan
Published: October 2014

This paper analyzes the application status of BIM in real estate development companies at the present stage,combined with the characters of BIM and the business processes in estate companies, we raise three modes to make a reference to the application and promotion of BIM in estate companies.
Synthesis of Boride Composite Powder via Fused and Carbon Thermal Reduction
Authors: Meng Dong Dong , Ma Cheng Liang , Li Yong Wei
Published: October 2014

In order to synthesize the high performance and low cost boride composite powder, in this experiment the cheap raw materials ZrSiO4and CaCO3combining with H3BO3, carbon source (graphite or petroleum coke), and the agent for crystal type conversion are used to synthesize ZrB2·SiC and CaB6·B4C compound via the fused and carbon thermal reduction method in the electric arc furnace (EAF). Different types of the fine composite powder are obtained by grinding the corresponding compound.
FEM Analysis of Cooperative Effects of Formwork Supporting System and Concrete Floor
Authors: Zhao Yun Bo , Hu Chang Ming , Yuan Yi Li , Wang Sha Nong
Published: October 2014

This Currently, researches on formwork supporting system are mostly based on integrated stability, while the contribution of the cooperative bearing effects of the formwork supporting system and the concrete floor to the reliability of a structure is ignored. In this paper, the necessity of the existence of the formwork supporting system in the construction process of a structure’s roof boards is established by analyzing the cooperative effects of the formwork supporting system and the concrete floor of a subway transfer station under construction through double nonlinear numerical method.It is also concluded that flat paraboloid is the shape of the trend of the horizontal displacement of supporting formwork system under two-way load by using finite element analysis, and the open side of the paraboloid is opposite to the direction of the force, which is completely different to the decreasing trend from the top to the bottom of the horizontal displacement of the formwork supporting system under one-way load.
Influence of Seepage on Embedded Depth for Anchored Pile Supporting
Authors: Ren Yong Zhong , Zhu Yan Peng , Zhou Yong
Published: October 2014

In the present code, the embedded depth is determined on the multi-pivot support structure to consider the impact of seepage less, and it is verified by anti-seepage stability for single layer aquifer, while the embedded depth is determined not expressly provide for heterogeneity aquifer of the coefficient of permeability difference. However, in the northwest loess areas, the formation is complex, permeability coefficient is variations. To solve this problem, the arctic investigates change law that the impacts of embedded depth variation change on bending moment, the vertical displacement of bottom and maximum flow velocity under seepage, and made a qualitative research model. And the impact of seepage on the embedded depth cannot be ignored and a greater impact on the stability of the pit.
Synthesis of Nd:GGG Powder by Liquid Phase Co-Precipitation or Solid State Method and Preparation of its Transparent Ceramic
Authors: Zhang Xue Jian , Li Chun , Huang De Xin , Lü Zhuo Fei , Zhang Ying , Liu Jing He
Published: October 2014

Neodymium-doped gadolinium gallium garnet (Nd:GGG) precursor and ceramic were prepared by liquid phase co-precipitation or solid-state methods, and the properties were studied. The results indicate that the precursor prepared with the liquid phase co-precipitation method has a small particle size. The sub-transparent ceramic was obtained after the body sintered for 2-3h at 1650°C at 1100Pa using liquid-phase co-precipitation method. When the body was sintered at 1750°C for 2-3h, a sintered body with non-transparency was obtained. The absorption spectrum and fluorescence spectrum of the sub-transparent ceramic were measured with the cross section at 807nm was calculated as1×10-20cm2 and the strongest emission peak located at 1061nm.
Non-Linear Numerical Simulation of Core Steel Reinforced Concrete Columns Based on ABAQUS Software
Authors: Li Kai Wen , Li Zhi Yang , Zou Yun
Published: October 2014

Finite element analysis could be used as a supplementary means to investigate mechanical behavior. ABAQUS software is conducted to analyze steel reinforced concrete (SRC) columns. Firstly, in order to validate the rationality of the analytical model, finite element models of test specimens are established to simulate the test process. By comparing the analytical results with experimental ones, it is found that the results from finite element analysis coincide well with that from test. So ABAQUS software could be used as a supplementary means to simulate SRC column mechanical behavior . Further the ductility and ultimate capacity of SRC columns are studied with the changes of steel bone ratio and the axial compressive ratio.
Plumbum Sink and Transfer Process in Jiaozhou Bay
Authors: Yang Dong Fang , Geng Xiao , Chen Sheng Tao , Xu Zi Jun , Cui Wen Lin
Published: October 2014

In order to provide background information and scientific basis for pollution control of Pb, this paper analyzed the sink and transfer process of Pb in Jiaozhou Bay. Results showed that Pb in Jiaozhou Bay was mainly sourced from agricultural non-point source and urban point source, as well as atmosphere dry and wet deposition, leading to the contents of Pb were increasing from spring to summer, and decreasing in autumn and winter. Due to Jiaozhou Bay is a closed bay, the narrow bay mouth is vital to the water exchange, which is the force of horizontal distributions. Horizontal diffusion and vertical deposition were the two major transferred processes of Pb, leading to a large amount of Pb was finally transferred to the sea bottom of the bay mouth areas, and the sea bottom of bay mouth areas was the sink of Pb in Jiaozhou Bay.
Predicting Model of Ground Deformation Caused by Shield Constructing
Authors: Lai Yong Biao , Wang Meng Shu , You Xin Hua
Published: October 2014

A method of predicting ground deformation caused by shield constructing was proposed with support vector machine. With Matlab language, a predicting model of ground deformation caused by shield constructing based on SVM was designed, 11parameters (soil internal friction angle, cohesive force, buried depth, excavate speed, total thrust, average support pressure of the front two ring pressure tank, average support pressure of the front one ring pressure tank, average soil pressure of pressure tank, shield cutterhead total torque, synchronous grouting quantity, unearthed amount) were chosen for ground deformation influence factors, then an intelligent predicting model of ground deformation caused by shield constructing was built, and the forecast model was used for surface settlement prediction in shield tunneling of Shenzhen metro.
Sedimentary Facies Feature and its Ore-Controlling Role of Middle Permain Liangshan Formation, Southeast District of Guizhou Province
Authors: Kong Yue
Published: October 2014

The bauxite deposits in the study area belongs to the monohydrate bauxite deposit that were located the eroded surface of carbonate rocks, and the host country rock is the Middle—Permian Liangshan formation strata. In order to understand the development situation of the sedimentary facies of Liangshan formation in different periods and in different regions in the study area as well as the evolutionary process,the authors selected four strata profiles for the comparative analysis from the drilling records.The result indicated that there were two stages of transgression and a stage of marine regression in the study area during the ore—forming period,and the sea water transgressed into the NE part from the SW direction.The paleogeographic frame work played an important role in the deposition of the ore—forming materials,deposit preservation and the secondary enrichment.
Study on Combined Design of the City of Shenyang Residential Merchandise Condominiums Space
Authors: Wu Feng , Cao Peng Lue
Published: October 2014

The function space of residential condominiums internal various, to meet the needs of occupants through appropriate scale, reasonable function, and facade design and so on. The combination of different apartment layout of function space, lifestyle dwellers is also different; choose an apartment layout will choose a way of life.
Comparing Different Kinds of Materials for Adsorption of Methylene Blue
Authors: Shi Yan Peng , Zhong Shun Xian , Wu Meng Lu , Chen Jian Rong
Published: October 2014

Methylene blue is an organic dyestuff and damaged to human beings. Graphene-based composite is a new type of nanometer materials and with outstanding adsorption capacity of methylene blue than other materials in aqueous solution. This paper summarized and compared the difference among graphene, graphene-based composites and other materials in removing methylene blue in aqueous solution.
Variation of Total Volatile Fatty Acids (VFAs) and its Components in Hydrolytic Acidification Treatment of Dyeing Wastewater
Authors: Liu Na , Xie Xue Hui , Jiang Hong , Zhu Ling Yu , Yang Fang , Nguyen Thu Hien , Liu Jian She
Published: October 2014

As an important judgement index, Volatile Fatty Acids (VFAs) is the indispensable research object in hydrolytic acidification treatment process. The article studied the total VFAs and its components from the start to stable period of an hydrolytic acidification reactor treating simulated dyeing wastewater by a distilled method and ion chromatography system (ICS-90), respectively. The results revealed that it experienced about 90 days for the hydrolytic acidification reactor to be stable. The COD removal ratio hovered around 45% without large fluctuation, and the ADMI removal ratio ranged from about 50% to 81%. The total VFAs increased from the initial 24.72 mg/L to about 150 mg/L. The component analysis revealed that acetic acid increased to the main component and the proportion of propionic acid decreased, which reflected a good hydrolytic acidification effect after 100 days treatment of simulated dyeing wastewater.
Water Consumption Characteristics and Water Use Efficiency of Flue-Cured Tobacco under Different Conditions of Irrigation
Authors: Shao Xiao Hou , Wang Qian , Yuan You Bo , Ding Fu Zhang
Published: October 2014

The experiments were carried out in lysimeters to study water consumption characteristics and water use efficiency of flue-cured tobacco under different conditions of irrigation. By comparing the T and the invalid E of the tobacco K326, it is concluded that in the period of root extending most of the irrigation water is used for the E, in the early vigorous period, plants with all of the treatments show a T higher than the E, in the late vigorous period and the maturity, this ratio remains at 50%. Based on measured data, it was shown that the amount of irrigation water in the vigorous period had the most important influence on the yield of the tobacco.The nonlinear equation of the yield and WUE is Y=-2531.3X2+6113.8X-624.49,R2=0.7324; the equation of the yield and ET is Y=4E-0.7X3-0.0032X2+8.8458X-4806.7, suggesting that the WUE is not maximized at the highest yield of flue-cured tobacco. In the high-yield range, reducing irrigation appropriately could reach the harmonization of high production and water saving.
Aquatic Transfer Mechanism of Mercury in Jiaozhou Bay
Authors: Yang Dong Fang , Wang Feng You , Zhu Si Xi , Yang Xiu Qing , Wu Yun Jie
Published: October 2014

We analyzed the pollution sources and transfer processes of mercury (Hg) in Jiaozhou bay based on the investigation data during time periods of 1979 to 1985 (absent of 1984), and then proposed the transfer mechanism of Hg in waters. The high or low of Hg contents in surface and bottom waters in different regions could be defined based on the transfer mechanism.
Distribution and Source of Plumbum in Jiaozhou Bay Waters
Authors: Yang Dong Fang , Zhu Si Xi , Wang Feng You , He Hua Zhong , Yang Xiu Qin
Published: October 2014

Based on the investigation data of Plumbum (Pb) in surface waters in Jiaozhou Bay in April, August and November 1981, this paper analyzed the content, distribution and source of Pb. Results showed that Pb contents in April, August and November ranged from 0.20-2.65 μg. L-1, 0.79-3.34 μg. L-1 and 0.00-3.00 μg. L-1, respectively, all of which were lower than Grade II (5.00 μg.L-1) in according to National Standard of China for Seawater Quality (GB3097-1997). Agricultural non-point source and urban point source were the major pollution source of Pb in spring (growing season) and autumn (dry season), respectively; while both point and non-point sources were responsible in summer (wet season).
Research on Low Carbon Transformation of Tourism Industry in China
Authors: He Jian Bo , Wang Zhen
Published: October 2014

With the rapid development of global low-carbon economy, low-carbon transition of tourism industry has become the direction and trend of future tourism industry both at home and abroad. As an emerging industry, low-carbon tourism industry has substantial important social value and economic significance. While it also faces many challenges, and the paper, through elaborating the background and concept of low-carbon tourism, analyzes the necessity and significance of low-carbon transition of China’s tourism industry,and puts forward some concrete measures.
Study of Plankton in Qiantang River in Summer and Evaluation of Water Quality
Authors: Li Dong Mei , Jiang Cui Ling , Zhang Peng , Zhu Xiu Quan
Published: October 2014

To investigate the plankton and water quality of Qiantang river, plankton of 12 sampling sites of the study area were monitored in summer 2013. Results revealed that 65 genera of phytoplankton including 37 bio-indicators of pollution and 21 genera of zooplankton were observed. Diversity analysis showed that Shannon-Wiener indexes of phytoplankton and zooplankton were at 1.44 to 2.56 and 1.61 to 2.61, plankton biodiversity integrated index were at 0.419 to 0.558, and water quality integrated index were at 0.303 to 1.43. Data analysis suggested that the water quality of Qiantang river could be sorted from α type to β type of moderate pollution, the pollution degree could be sorted from moderate pollution to slight pollution. The evaluation results by using plankton and physicochemical indexes were consistent.
The Variation of the Contents of Pb in Surface Waters in Jiaozhou Bay
Authors: Yang Dong Fang , Ge Hong Guang , Song Feng Min , Li Chen , Yang Bo
Published: October 2014

This paper analyzed the content and distribution of Pb in surface waters in Jiaozhou Bay in 1982. Results showed that Pb content in April, June, July and October ranged from 0.49-3.25μg.L-1, 0.45-3.35μg.L-1, 0.30-2.67μg.L-1and 0.33-0.67μg.L-1, respectively, complied with Grade I (1.00μg.L-1) or Grade II (5.00μg.L-1) in Sea water quality standard (GB 3097-1997) of China. As a whole, Jiaozhou Bay waters in 1982 was very lightly polluted by Pb. Non-point source was the major source of Pb in this bay, including atmosphere deposition, ocean current from the offshore, and the transportation of the head of the islands. The content, distribution and source of Pb showed significant seasonal variations, and different pollution prevention and control measurements should be took in different seasons.
Analysis of the Virtual System of Sports Scene Based on Virtual Reality Technology
Authors: Liu Li , Yin Guo Xi , Sha Kun , Gao Bin
Published: October 2014

As one of the key technologies in the future development of the Internet,virtual reality technology has been more and more applied to the field of sports training, which will subvert the traditional sports training and bring a series of major changes to the traditional sports training. This paper will be based on the interpretation of virtual reality technology and combine it with the analysis on trend of virtual reality technology, so as to explore the construction of the system of virtual sports scene by means of virtual reality technology.
Analysis on Problems of Liaoning Tourism Industry Based on DIAMOND MODEL
Authors: Liu Xin , Mao Hui Yuan
Published: October 2014

Tourism is one of the pillar industries in Liaoning Province, and plays an essential role in domestic economy. This research paper analyzes the six basic elements and existing problems in the development of Liaoning tourism based on American famous scholar Michael Porter’s Diamond Model. Then it proposes the six countermeasures promoting the competitiveness of Liaoning tourism.
Construction and Application of County-Level Database of Basic Rural Economic Information
Authors: Xue Yan , Zhu Ye Ping , E Yue
Published: October 2014

This paper describes data cleaning and reporting to effectively improve data quality in the construction of County-level Database of Basic Rural Economic Information. Modeling and GIS, as well as relevant design and development software are also incorporated, so that the database can fulfill the potential and serve for agricultural production, agricultural policy development, and agricultural management.
Enterprise Competitive Intelligence System Research Based on Data Mining Technology
Authors: Kun Shao
Published: October 2014

Under the background of current continuous changing market economy and rapid development of information, enterprise will increase the demand of information or data, and correspondingly put forward higher requirements for its quality. For the purpose of better usage and information data control, enterprises put forward pioneering construct competitive intelligence system. Competitive intelligence system can provide accurate, effective and high value, timeliness strong intelligence data to enterprises and the enterprises may adjust their competitive strategy, and effectively enhance their own competitive advantages. The application of data mining technology in enterprise competitive intelligence system can upgrade information reserve capacity and optimize information channels to improve system efficiency effectively. In the process of enterprises development, the establishment of competitive intelligence system based on data mining technology has particularly important practical significance, so we should put more effort into establishing and running the intelligence system.
Ultrasonic-Assisted Dissolution of Polystyrene in Decahydronaphthalene for the Preparation of Poly(Cyclohexylethylene)
Authors: Wang Jia Jia , Huang Hui , Li Ting , Tao Shi Ying
Published: October 2014

Dissolution process of polystyrene in decahydronaphthalene solution was conducted and compared under different conditions. The effects of dissolution time and temperature on the dissolution ratio of polystyrene were performed with the assistance of ultrasonic and mechanical agitation, respectively. The dissolution ratio of polystyrene increased with the increment of dissolution time and dissolution temperature, polystyrene dissolved faster under ultrasonic-assisted process. The polystyrene dissolution kinetic model was developed and used to calculate the dissolution rate constant. The kinetic model showed good agreement with the experimental data, and the dissolution rate constant indicated that ultrasonic can obviously enhance the dissolution process of polystyrene in decahydronaphthalene solution.
Management and Maintenance on CT, MRI, Gamma-Ray Radiotherapy Instrument
Authors: Wang Jian Kun
Published: October 2014

Medical Equipment, such as CT, MRI, Gamma-ray Radiotherapy Instrument, play an increasingly important role in modern medical field. While, this medical equipment cannot be managed and maintained well in some hospital. If the problems are still remained in the medical process, it will not only affect the health of patients, but also hamper the development of the medical profession. Therefore, to establish a scientific and reasonable quality control system of medical equipment is to be solved. This article analyzed to causes and background of strengthening the medical devices quality control system all over our country, put forward the new ideas for building the medical equipment quality control system, and elaborate how to strengthen the medical equipment quality control system for medical equipment management and maintenance.
Model and Algorithm Based on Sum of Deviation Squares for Multi-Criteria Decision-Making
Authors: Zhou Hong An
Published: October 2014

With regard to the multi-criteria decision making (MCDM) problems that the criteria weights are unknown and the decision maker (DM) has avail preference information on alternatives. Firstly, a quadratic programming model is established by using the minimum sum of deviation squares between the subjective and objective decision-making preference information on alternatives. Secondly, the existent condition of solution is given and the calculated formula of the criteria weights are obtained by solving the model, thus the overall values of the alternatives are gained. Based on these values, the ranking priorities on alternatives are processed. Finally, a practical example is illustrated to show the feasibility and availability of the developed model and method.
Oil Extraction Engineering Data Query System Based on WEBGIS under the B/S Model
Authors: Zhang Ai Hua
Published: October 2014

In this paper, firstly introducing the B/S structure and the WEBGIS technology, giving a brief understanding; then discussing the oil extraction engineering data query system which based on WEBGIS technology and B/S model; and after analyzing we find that: the oil extraction engineering data query system not only takes advantage of the convenience and flexibility of the Internet which is based on WEB, but also the application of the B/S technology has greatly strengthened its transaction processing and security, thus realizing the real business related WEBGIS, achieving high data sharing and interaction, it is more reasonable in oil extraction engineering nowadays.
Reform of the System of Local Administration
Authors: Yang Zhuan Zhi
Published: October 2014

This paper describes the formation and change of Chinese local administration system , and pointed out the shortcomings of its existence with a series of reform measures, so that the local administration system has been improved and strengthened, adapted to the local development of the socialist market economy needs , and ultimately to promote the development of social productive forces.
Research on Online Marketing Technique Based on Three Dimensional Fitting System
Authors: Shao Xiao Hua
Published: October 2014

With the constant improvement of network system, network environment has made people's life become convenient. Especially that the clothing network marketing has become the main way of people's daily consumption. Through combing three dimensional fitting system with online marketing, the current disadvantage of that online clothing sale is merely displayed with pictures is changed. This paper has made brief analysis for three dimensional fitting system and online marketing, put forwarded several technical support for fitting system design, and selected the optimal technology, then emphasized the analysis of online marketing platform. Platform design is divided into 5 modules, then corresponding model and method is adopted to perform simple analysis and introduction by aiming at each module, while data processing is the core of system, detailed treating processes is given. Then the key technology of realizing this design is introduced, it has provided corresponding software and hardware resources for online marketing of three dimensional fitting systems.
The Design for Petroleum Engineering Cost Management System Based on B/S Architecture
Authors: Wang Mei Tian
Published: October 2014

Information highway with computer network technology as the core, its rise and development, make the function of information system and the connotation constantly development and improvement, for the future information society provides an efficient, fast, and even intelligent work environment. In view of the defects of petroleum in engineering cost management, it put forward the " design of petroleum engineering cost management system based on B/S architecture ", by this scheme can improve the efficiency of existing petroleum engineering cost management, cost management for oil development has great benefits.
The Visualization Research of User Observation and Quantitative Information
Authors: Zhang Xin , Fang Hai , Hu Fei
Published: October 2014

User observation is a significant method for user research. Researchers collect information by field observation. Information collecting and analysis to information observed effects structure analyzing and innovative design of products directly. It visualizes the research results, eliminates interference information, unnecessary information and images and conveys useful information briefly and correctly, which makes the results more vivid. In order to benefit the future product development, this thesis, based on this purpose, mainly studies the better methods to visualize the research information of users.
Research on Mechanical Properties of Cement Mortar with Iron Tailings
Authors: Huang Da Wei , Sun Ren Juan , Wei Shan Shan , Wang Yuan Yuan , Hu Yi Zhang , Ge Zhi
Published: October 2014

In this study the iron tailing was tested whether it can be used in the civil construction, Furthermore, specimen were made to test the mechanical properties of cement mortar with iron tailings substitute for part of cement. iron tailing sand has been ball mailed to specific fineness. The fineness of experimental iron tailing (sieve residue for the 200 mesh sieve) is 0.45%, 3%, 4.9%, 5.65%, 6.50%, 8.70%, 11.10% respectively.This paper show the influence law of different finesses of iron tailing powder on the Mechanical properties of cement mortar.
Usage and Maintenance of Medical Apparatus and Instruments of Human Factors Research
Authors: Zhang Jin Liang
Published: October 2014

Medical equipment maintenance and use of personnel, is crucial. Used properly and rational division of engineering and technical personnel, strict management, to train engineering technical personnel with professional spirit, all-round for clinical medical services; To strengthen the training of equipment use of personnel, highlight the preventive maintenance and maximize or prolonged trouble-free of medical instrument equipment, ensure the effective operation of the clinical diagnosis and treatment work.
Risk Assessment of Large-Scale Public Utility Projects on Base of Entropy Law
Authors: Jin Yao Yu
Published: October 2014

Due to the risk of large-scale public welfare project and a wide variety of intricate link between various risks, the success of its projects is a great significance for the development of China's construction industry, many issues still need further research, particularly research project risk assessment. the theoretical research evaluation of large-scale public welfare project risks are becoming a core of project risk management, this paper presents a comprehensive evaluation of large-scale public utilities engineering project risk based on entropy method, and through case studies, large public utilities project risk management provides a simple, more objective methods of analysis for policy-makers to play the role of the project.
Strategies for E-Commerce Development of Local Agricultural Products - A Case Study in Dabie Mountain
Authors: Zhou Hai Qiong , Ren Quan Yu
Published: October 2014

Dabie Mountain area is rich in agricultural resources, a wide range of special agricultural products processing take shape, however , the economy of Dabie Mountain area is relatively backward , which seriously restricting the flow of the agricultural products in Dabie Mountain, leading to a variety of problems of selling and buying. In the information age, how to use e-commerce to promote trade in agricultural products is the focus of this paper This paper introduces the characteristics of agricultural production and agricultural e-commercein development in Dabie, e-commerce analysis of Dabie characteristics of agricultural problems in the development process is proposed to promote local agricultural products e-commerce strategies in Dabie Mountains.
Research on Multi-Level Context-Aware Material Data Model within Manufacturing Enterprises
Authors: Xue Dong Juan , Pan Ying
Published: October 2014

Context-aware applications can sense and explore the context of production processes to provide proper and useful services to managers in workshop. And materials data integration and control are one of core competences concerning with the development of mass data application in manufacturing enterprises. In this paper, a context-aware materials data integration meta model is presented which is incorporating an advanced materials demand mapping and decomposition mechanism to support fine-grained materials data in the right time for the provision of materials services, based on the analysis of the application context involving the key points and relationships in their manufacturing processes. In this model, materials data integration is controlled by the demand state transitions at different levels including workflow levels, control levels and data levels, which incorporates dynamic context information by checking the context constraint associated with each application task at the time of the specific request submission. Finally, a case is given which is implemented in a complex equipments enterprise.
Analysis on Coupling Development Competitiveness of Tourism Industry and Modern Service Industry in Liaoning Province Based on DIAMOND MODEL
Authors: Mao Hui Yuan , Xin Liu
Published: October 2014

Liaoning province is abundant in tourism resources and has become an essential destination and generating place of Northeastern Asia. It has featured tourism itineraries including six world cultural heritages. The province is positively exploring the way of coupling development of tourism industry and modern service industry and has made certain achievement. Based on Diamond Model propounded by American scholar Baud, this research paper analyzes the various factors existing in the process of coupling development of tourism industry and modern service industry in Liaoning, concludes its competitiveness, and proposes the beneficial suggestions.
A Method for Command Business Services Selection Based on Execution Efficiency and Reliability Restraint
Authors: Chen Gang , Yang Chu Le , Cai Jun Ping , Yang Jun
Published: October 2014

Due to specific requirement of command business in command information system, reliability and excution efficiency of command business are put particular emphasis. So the two factors had been seen as primary consideration conditions when command business services selection methods were researched. In view of reliability of multiple command business redundancy, a method for command business services selection based on execution efficiency and reliability restraint was put forward by introducing idea of software fault-tolerant in services selection stage. Within this method, the reliability computation method of command business composite services was given and the selection model of command business adding execution efficiency restraint was presented. Finally, the services selection algorithm and experiments were designed to confirm the method.
A Software Engineering Method Based on Bionic Components
Authors: Chen Ji Xiong , Huang Zhen Xi , Liu Zhong Shuang , Cai Xia
Published: October 2014

With the development of Information Technology, the traditional software engineering method is no longer fully meet the needs of software development. Thesis, according to the point of view of bionics, combined with the analysis of animal architecture, presents the concept of bionic components characteristic of animal body organs and the software engineering method which uses bionic components as the basic unit, based on bionic component method for short. In this paper, the bionic component model, the process model based on bionic component method and the life cycle model based on bionic component method are studied. And on the basis of these models, detailed describes the software development method based on bionic components.
Cooperative Space-Time Network Coding for Multi-Sources Distributed Cooperative Network
Authors: Jin Xiao Ping , Feng Hui Zhen , Li You Ming
Published: October 2014

In this paper, a novel cooperation space-time network coding (CSTNC) scheme based on multi-sources distributed cooperative network is considered. In this scheme, multiple sources transmit signals to relay and destination node. The relay re-encodes the decoded signals through space-time network coding with the aid of multiple antennas. The simulation shows that the BER, capacity and outage probability of the CSTNC becomes better with the increasing of relay antenna number and very close to traditional space-time network coding (TCSTC) scheme. Meanwhile, transmission efficiency analysis demonstrates that CSTNC scheme has higher transmission rate.
Implementation of Monitoring and Management for Professional Mobile Application Adapting to Scenarios Switch
Authors: Shao Xu Dong , Liu Yang
Published: October 2014

In order to effectively monitor, manage and prosper professional mobile application, this paper analyze the reasons of shorting for monitoring and management of mobile application on current technologies. Also, based on mechanisms of mandatory access control in user space or kernel space, including scenarios context switcher, we implement an active stereoscopic framework for monitoring and management of mobile application adapting to situations changing. Besides monitoring & management of application, the framework can support application for user with new services adapting new environment.
Massive Data Hybrid Encryption Algorithm Based on Cloud Computing
Authors: Yang Er Song , You Lin , Wu Zhen Dong , Yu Wang Ke
Published: October 2014

In order to ensure the security of massive data and user’s privacy in cloud computing, encrypting is a preferred method to protect their security. Due to some characteristics of massive data,such as large scale and structural complexity, it makes that the traditional encryption algorithms cannot be directly used to protect the security of massive data in cloud computing. Considering the real-time and reliability of encryption algorithms, we propose a hybrid algorithm, which combines DES algorithm and one-dimensional logistic map by using the parallel computing architecture of the MapReduce. Our experimental results and analysis show that our algorithm could effectively implement massive data encryption with high security.
Network Routing Mechanism Simulation Research Based on VANETs
Authors: Zhu Li , Bai Lan
Published: October 2014

VANETs is a rapid developed wireless mobile MANETs network with special challenge nature. It is a distributed and self-organized communication network based on moving vehicle. This network has characteristics like limited bandwidth, strong mobility, strong dynamic network topology, limited node degrees freedom, equipment capacity constraints and weak physical security. These characteristics usually make typical routing protocol in mobile MANET show a low efficiency in mobile VANETs, even fail. MANET routing algorithm is roughly divided into two categories, namely table driven routing protocol and on-demand routing protocol. It is due to the particularity of driving cars on the road. So how to improve network routing protocol in the performance is now a challenging problem. The purpose of this article studies network routing mechanism based on wireless vehicular networks simulation method. On the basis of analyzing the performance of typical routing protocols in MANET, such as DSDV, AODV and DSR, the improved scheme of AODV on-demand routing algorithm is put forward.