bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Application of Intelligent Solar System in Stadium
Authors: Zhao Jian Wen , Tian Lei , Ding Ze Ming , Li Bin
Published: October 2014

With the development of national fitness activities, stadiums with all kinds of standards are established across the country. The functions of illumination and refrigeration inside stadiums have applied electricity. In order to save the consumption of energy, keep the sustainable development of society, as well as reinforce the consciousness of environmental protection, the thesis designs a set of novel light guided automatic lighting system of solar energy. The system realizes indoor illumination with controlling system. In the daytime, the system uses optical materials with automatic following lighting for indoor illumination, while uses stored energy of storage battery provided by daytime solar panel for LED illumination. The solar cell also provides energy for daytime automatic following lighting device. This device can take full advantage of solar energy to deal with the problem of energy waste, as well as proposes a new idea for energy conservation and emission reduction for stadiums.
A Separated-Frequency Parameters Identification Method of Li-Ion Battery Model for Electric Vehicles
Authors: Mu Da Zhong , Dong Zhi Hong , Wang Ming Fei
Published: October 2014

This paper proposed a separated-frequency identification method of Li-ion battery model for Electric Vehicles (EVs). The main idea is to decompose the measured terminal voltage and current data in wavelet domain, and then the weighting least squares (LS) algorithm is used to extract the model parameters. Since the signal energy of open circuit voltage (OCV) mainly distributes in the low frequency band, the identifiable wavelet-domain battery model can be approximately obtained by neglecting the high frequency wavelet decomposition coefficients. Furthermore, based on the Akaike’s information criterion, we study the optimum decomposition order of the wavelet-domain battery model.
Aqueous Two-Phase System in the Synthesis of Starch Graft Acrylamide Polymer
Authors: Zheng Meng , Liang Ling Xun
Published: October 2014

With starch as base material, acrylamide (AM) as raw material, polyethylene glycol (PEG20000) as dispersing medium, in aqueous two-phase system synthesized starch grafting acrylamide polymer. Through the indoor experiment, determine the optimum process conditions of polymerization reaction, the initial monomer concentration was 15%, PEG20000 concentration of 10%, m (ST) : m (AM) = 3:7, dosage of initiator is 0.1%, T = 50 °C, T = 6 h. Get monomer conversion was 98.5%, the characteristic viscosity.methods according to 761.5 mg/L of graft copolymerization. Of product have been characterized through infrared spectrum and analysis.
Swelling and Antibacterial Properties of Chitosan/Poly(vinyl alcohol) Hybrid Hydrogels
Authors: Zheng Jing Jing , Gui Xiao Liang
Published: October 2014

Chitosan (CTS) was added into poly (vinyl alcohol) (PVA) hydrogels to get their antibacterial properties. A series of CTS/PVA hybrid hydrogels were prepared by freezing/thawing method. The swelling properties of all hybrid hydrogels are better than those of the original PVA hydrogel. The CTS/PVA hybrid hydrogels show excellent antimicrobial performance towards Escherichia colis.
Study of Photovoltaic Energy Storage EMS Based on LabVIEW Data Acquisition
Authors: Wang Yu Fei , Zhao Dong , Xu Xing , Xue Hua
Published: October 2014

As an indispensable part of renewable energy power generation system, energy storage to a large extent, has resolved randomness and fluctuation of photovoltaic power generation and enabled its smooth output. Firstly, a method of energy management by means of LabVIEW was proposed. Based on its advantages on data collection and convenience of hardware integration application, this software was used to conduct real-time surveillance and control of such parameters as charge-discharge current and DC line voltage. Then, five operating mode were raised on the basis of generating capacity of photovoltaic cell and surplus capacity of energy storage battery , insure quick response and high-efficiency operation of the system. Finally, the effectiveness of energy management proposed method was verified on the built experimental platform.
Analysis of the Influence of Electric Field on Current Error of High-Voltage Three-Phase Three-Element Combined Transformer
Authors: Liu Gang , Jiang Bo , Ren Lin Dong , Zhang Fu Zhou , Ai Bing , Jiang Wei
Published: October 2014

High voltage three-phase three-element combined transformer, widely used in power systems of 10kV, 35kV and the like, is important in guaranteeing the safe and stable operation of power system, and ensuring the fair and equitable metering of electric power. At present, when verified by single-phase verification method, combined transformer exposed to the situation which doesn’t match its actual operation situation, as a result, verification results can’t reflect the true error characteristics of combined transformer. So, it is suggested to adopt three-phase verification method to verify combined transformer. However, when combined transformer is verified by three-phase verification method, it has not been clear yet that what influence electric field generated by voltage has on current error. In this paper, through current error test on combined transformer with three-phase verification method at different voltage, it is discovered that electric field has a larger influence on current error at lower current (especially at 1% rated current),with the increase of current, the influence of electric field on current error decrease gradually till negligible. The use of three-phase verification method and appropriate modification of current error limits are recommended when combined transformer is verified.
Research of Influence of Tower Type on Lightning Back-Flashover Performance at High Soil Resistivity Areas
Authors: Wang Ding Jun , Wang Zhi Shuang
Published: October 2014

In different geographical conditions all kinds of failures due to lightning stroke occur in 220/110kV transmission lines. In the high resistivity region lightning back-flashover mainly occurs. This paper, according to the idea of the application manual of 220(110kv) transmission line typical design program put forward by the State Grid Corporation, analyses the width of the corridor, steel consumption of tower, lightning effects, operation and maintenance, and the State Grid recommendation on Shangzi-tower, Portal steel tower, Cup-type tower, Cat-head type tower and Ganzi-tower. And study on Cup-type tower and Cat-head type tower is furthered. Considering various factors, ATP/EMTP method is finally adopted to simulate the lightning withstand level and back-flashover trip rate of two types of tower. The results show that, taking the grounding resistance of 25Ω condition, the lightning back-flashover performance of cup-type tower is slightly better than the cat-head type tower with the same parameters.
Study on the Control Strategy of PV-Energy Storage Microgrid Working in Islanded Mode
Authors: Fang Kai , Li Jian Lin , Hui Dong
Published: October 2014

This paper mainly discussed the control strategy of PV-energy storage microgrid that run in islanded mode , the PV inverter and the energy storage inverter use constant power control and constant voltage and constant frequency control respectively,with such a control strategy to ensure the microgrid in islanded mode supply the load stably. To verify the proposed theory,built the simulation model on the Simulink platform.In order to facilitate the parameters modification and improve the speed of the simulation,PQ controller was programmed by C language and embedded in the Simulink platform.Through the analysis of the simulation results,proved that the correctness and validity of the control strategy.
The Design of High-Voltage Cable Partial Discharge On-Line Monitoring System Software
Authors: Zhang Xi Lin , Wang Zhen Hao , Huang Zhong Ying , Han Xiao Juan
Published: October 2014

This article is one of the series of papers about the Cross-linked polyethylene cable partial discharge on-line monitoring and positioning system. Design and application, which is about the Cross-linked polyethylene cable partial discharge on-line monitoring and positioning system software, is discussed from the run analysis , log record and PC control, etc. Basing on the field running effect of the Cross-linked polyethylene cable partial discharge on-line monitoring and positioning system, it manifests the correctness and effectiveness of the above methods.
The Hardware Design of Partial Discharge On-Line Monitoring System in High Voltage Cable
Authors: Wang Zhen Hao , Pang Dan , Zhang Xi Lin , Zhou Yi , Han Xiao Juan
Published: October 2014

This article is one of the series of papers about research and development of partial discharge monitoring and positioning systems in cross-linked polyethylene(XLPE) cable. We discuss the design of hardware principle diagram which belongs to partial discharge on-line monitoring and positioning system in XLPE cable in terms of the system block diagram, power management module and control processing module and so on, the operation effect of partial discharge on-line monitoring and positioning system in XLPE cable shows the correctness and effectiveness of the above methods.
The Influence of Main Components in PM2.5 on Composite Insulator Contamination Flashover Characteristics
Authors: Liu He , Quan Yu Sheng , Chen Ning , Shi Pu Xin
Published: October 2014

This paper studies about the influence of main components in PM2.5 on insulator pollution flashover characteristics. A paper written by Institute of Atmospheric Physics Chinese Academy of Sciences presents the main components in Beijing’s PM2.5. Basing on that, an artificial pollution test in our lab. The test result shows that components in PM2.5 have no significant effect on insulator pollution flashover characteristics. But, in haze weather, insulators are easier to be polluted. As a result, the probability of insulator flashover become higher.
Experimental Investigation on Breaking Characteristic of Load Switch in Medium High Voltage Ring Network Cabinet
Authors: Shi Qiang , Li Wei Wei , Ai Bing
Published: October 2014

This paper focuses on an experimental investigation of the arc plasma behavior in current breaking process of a certain type of 12kV ring network cabinet’s SF6 load switch. From the frames obtained by high-speed photography, the characteristic of the arc movement was revealed. According to analysis, the structure of load switch was optimized and its breaking capacity about transfer current was improved. This study may provide a reference for design and optimization of load switches.
The Performance of a Novel Solar Cooling and Power System with Different Working Fluids
Authors: Lei Huan , Yang Jin Fu , Han Dong Jiang
Published: October 2014

Due to serious environmental problems and energy supply and demand issues, solar energy as a clean and abundant energy gets more and more attention. This paper presented a novel cooling and power system combined with PTCs. The system performance analysis was conducted with four different organic working fluids. The impacts of organic Rankine cycle (ORC) evaporation temperature, ORC condensing temperature and heat transfer fluid (HTF) mass flow rate in evaporator on system thermal performance were analyzed. The results show that system with toluene as working fluid has the highest thermal and exergy efficiency, and D4 and MDM have the lowest. Different working fluids have different cooling power to electricity ratios. The HTF mass flow rate in evaporator has a significant effect on system thermal performance.
Cell Analytic Application Based on Dielectrophoresis Microchip
Authors: Zhang Ying Jie
Published: October 2014

This paper introduced the basic principle of dielectrophoresis.The DEP microchip was classified according to the modes of electrical sources. It analyzed and compared the advantages and disadvantages of the interdigitated electrodes, parabolic electrodes, fort electrode and three-dimensional electrode.The paper also introduced the fabrication process of chip and cell analytic application recently. In the end its application prospect and development direction.was conducted .
Design and Implementation of LDPC Encoder / Decoder in the Atmospheric Laser Communication
Authors: Chang Li Min , Dong Qing Wei , Zhan Ye
Published: October 2014

The paper briefly introduces the structure principle and excellent characteristics of protograph LDPC codes and designs the serial encoding circuit based on FPGA. On the basis of the further study of Belief Propagation (BP) algorithm, λ-min algorithm and A - min algorithm, decoder is designed adopting the complexity and performance eclectic mixed decoding algorithm. Meanwhile, it is verified by the simulation. The result shows that coding gain can be up to about 6 to 8 db, if it meets the requirements of 10-5bit error rate.
Design and Simulation of Booster's Controller Based on Matlab
Authors: Xiao Xiao Long , Ding Xiao Hua , Zhang Hao
Published: October 2014

According to the working principle of the Boost type switch converter, the small signal analysis method was used to model the Boost circuit. Its transfer function exists right half plane zero. The system is a non-minimum phase system. A PI regulator was designed. The boost circuit simulation model was built through matlab. The simulation result has a good static and dynamic performance. It verifies the rationality of the mathematical model and control strategy. It can conduct the actual circuit design.
Design of Intelligent Lighting Control System Based on C-Bus
Authors: Sun Xue Jing
Published: October 2014

In the paper hardware and software of lighting control system are designed within the office building based on C-bus. In terms of hardware design, C-bus controller is chosen as the main control part of the whole process to implement the lighting dimming control. In the aspect of software design, the use of C-bus programming software can realize the characteristics of the complete set, multi-channel dimming light and infrared induction control implementation. The black and white touch screen is used to complete the multi-channel dimming of parameter settings and information display.
The Research of Communication System of Civil Defense Engineering Based on Siemens PPI Bus
Authors: He Ming Xing , Wang Wei , Liu Ce Yue , Zhang Yuan
Published: October 2014

In civil defense engineering, three anti-ventilation, air conditioning dehumidification, power supply and other electrical control equipment have long distance, distributed monitoring area and are not convenient for centralized monitoring. To improve the level of civil air defense system of automatic monitoring, enhance the system's rapid response ability, adapt to the need of modern war, this paper based on data communication problems of distributed electrical system in civil defense engineering, combined with the low communication rate and high security requirements in civil defense engineering, puts forward the communication solutions based in Siemens PPI fieldbus, configures the communications PLC which has powerful functions, compiles multipoint PPI communication program, designs remote monitoring system and gives results of test analysis when it is running. Actual operation results show that the communication system of civil defense engineering based on Siemens PPI fieldbus has fast communication speed, low error rate, strong expansibility and other advantages..
New Design of Selective Leakage Protective System in Underground LV Distribution Network
Authors: Zhang Liu Fang
Published: October 2014

Using DC current sensor as current detecting element in leakage protective in underground LV distribution network and single chip processor as central control unit,a new computerized DC examination and selective leakage protective system is formed. Hardware and software designs are introduced in the essay. The simulated experiment results show that all the property indexes of the system reach the design requirements and achieve good results.
Multi-Resonant Compensation Analysis of Contactless Electrial Power Transfer System
Authors: Zeng Wei , Wang Bin , Jiang Bing , Hao Yu Guo , Fan Rui Xiang
Published: October 2014

The loose coupling structure of Contactless Electrical Power Transfer System (CEPTS) is the main cause of transmission inefficiency. Compensation capacitors were calculated and mounted on both sides of primary and secondary coils which forming the following four compensation topologies: primary secondary series (SS compensation), primary series-secondary parallel (SP compensation), primary parallel-secondary series (PS compensation) and primary secondary parallel (PP compensation). Experiment results show that the transmission efficiency differs according to different compensation topologies. SP structure is the most efficient among these four topologies and the transmission efficiency of SP structure is about 40% higher than that of basic structure without compensation.
Reactor Effects on the AC Governor System Transformer Grid Side Harmonics
Authors: Wang Ji Zhong , Tong Ji Hong
Published: October 2014

The paper makes the simulation and analysis to the power harmonic which is produced by the AC drive device of the hot strip mill in the background of the metallurgical industry. Aiming at the line-side effects of AC-AC frequency conversion and AC-DC-AC frequency conversion control system harmonic, the paper makes the MATLAB simulation and analysis in three circumstances, such as the load parameters, the inductance value changes of transformer primary side and secondary side, and adding reactor etc., and defines the functions and value ranges of the line reactor. The simulation results can provide a design basis for the harmonic control and the power supply system when the system uses the variable frequency devices, and then improves the power supply quality of the large drag device.
The Design and Research of Three-Phase Inverter Dual-Loop Control
Authors: Cao Wei , Sun Jing , Su Hu , Yang Dao Pei
Published: October 2014

A dual-loop (inner current loop and outer voltage loop) control scheme for micro electric source inverters in microgrid is improved in this paper. In order to make dual-loop control analysis more accurate, LC filter, SVPWM module equivalent are included in the inverter supplied system model. Based on the fully decoupled dq axis model,the PI controller are used in both inner current loop and outer voltage loop. The inner current loop is designed with engineering algorithm and the outer voltage loop with bode diagram and step response. The simulation results show the validity of the designed control in that the proposed design methodology not only enhances steady state performance of the system, improves the voltage quality but also enables the current limiting.
Waveform Recognition Technology in Distributed Fault Location of Transmission Line
Authors: Ding Jia Li , Zheng Yi Hui , Li Li Xue , Wang Xin , Li Ke , Liu Lin
Published: October 2014

Distributed way of traveling-wave fault location algorithm is a new theory founded in recent years. By installing sensing points in distributed way, the accuracy of fault location result can be clearly improved comparing to traditional methods. First, PSCAD is used to simulate the transmission line model and measure the three-phase current data. Second, by using wavelet transformation and phase to-module transformation, these current data is mathematically processed and modulus maximum is achieved easily. Finally, time difference between the adjacent modulus maximum points is calculated and the location is figured out by using the module time-difference algorithm. The test result shows that the method above is valid and the relative error is rather small.
The Research Progress of Solar-Driven Humidification-Dehumidification Desalination Technology
Authors: Liu Xiao Hua , Zhu Ming Ming , Zhang Xin Chun
Published: October 2014

Humidification-dehumidification (HDH) desalination is one of the most promising small-scale desalination technologies as the process is simple and fits decentralized water production, moreover, the device runs steady and needs low maintenance. In this paper, the basic theory of the HDH system is introduced and many different studies on the HDH technology are also reviewed. The research aspects such as solar collector, humidifier, multi-effect system, the optimum flow rate ratio of water to air and the systems of multiple extractions and injections are compared and summarized. At last, future development has been point out to improve the overall usability.
Brief Analysis on Green New Deal of Iron & Steel Industry and PM2.5 Pollution Control Countermeasures in China
Authors: Jiao Cui Yan , Ren Gang , Xu Tie Bing , Liu Qing Hui
Published: October 2014

In recent years, environmental protection has attracted unprecedented attention as the frequent occurrence of the haze phenomenon in China. The Iron & Steel industry, as the representative of the industries with heavy pollution, high energy consumption and excess production capacity, has became the focus of the attention. In this article, the effect of new laws, regulations and standards of environmental protection on the development of the Iron &Steel industry in China has been compared and analyzed. According to the new environmental protection request, combined with the current new technology and new materials, the pollutant emission has been reduced to the maximum, and the policy and technical support for the energy conservation and emission reduction as well as the sustainable development of the Irion &Steel industry has been provided.
The Influence of Ecological Remediation Process on Bacterial Community Composition in Beishi River Sediment Determined by PCR-DGGE Analysis
Authors: Wang Ji Hua , Guan Jian Fei , Yang Xue Chen , Wang Miao , Zhang Shan Shan , Gu Wan Tong
Published: October 2014

Pollution of urban river is a major risk to human health and water quality throughout the world. The purpose of this study was to determine the influence of ecological remediation process on sediment bacterial community structure. Three sediment samples in urban river located in Changzhou city, the bacterial community structure was studied in the process of ecological remediation period using denaturing gradient gel electrophoresis (DGGE). The results of the microbial community analysis were related to water environmental parameters through the analysis to investigate the relationship between potential impact of water quality and microbial community structure. As the ecological remediated river, T, DO and COD were the important environmental variables influencing the sediment microbial community composition. Microbial community changes determined by DGGE patterns showed that microbial community structures in the same period did not change further, while those in different period changed continuously. In July 2010, Pseudomonas sp, Escherichia sp, Exiguobacterium sp and Bacillus sp as each point jointly owned. In October 2010, Acinetobacter sp, Clostridiales, Dechloromonas sp and uncultured bacterium were belonged to these three sample sites.
The Invasive Species Risk Assessment and Prediction System Based on GIS
Authors: Wang Xiao Hong , Liu Ya Jing , Guo Li Na
Published: October 2014

With the international economic and trade exchanges, biological invasion has become an important factor in the threat of biological diversity and ecological environment. In order to prevent and control exotic species invasion, using of GIS-based geospatial technology to the potential distribution of invasive species risk assessment can provide the basis for ecological management of invasive alien species better, thus reducing the economic losses due to invasive alien species caused to our country. To this point, the study had done a secondary development based on ArcGIS Engine component. It used niche model to analysis and study potential suitable distribution of alien pests in China, conduct a risk assessment to them. The receiver operating characteristic curve was applied to access the prediction accuracy Analyzed the impact of the distribution of invasive alien species` main environmental variables. It provided a theoretical basis for ecological management of invasive alien species.
Thoughts on Developing of Jujube Industry in Southern Xinjiang under Ecological Fragility
Authors: Guo Ya Ping , Luo Yong
Published: October 2014

Southern Xinjiang is a ecological vulnerable area, It mainly reflects in tree aspects: desertification, serious drought, saline-alkali, srong wind and dusty. Jujube tree can resist on drought, wind and dusty, saline-alkali, so we should develop jujube industry vigorously. This thesis description the natural ecological environment of Southern Xinjiang from geography environment, solar-thermal resource, water and land resource, and advantage of the development of jujube industry in Southern Xinjiang ,analyses the existing problems during jujube industry development, puts forward solutions,so this thesis has a big guide meaning to healthy and sustainable development of jujube industry in Southern Xinjiang.
Analysis on Cultivable Fungal Community Structures in Farmland Soil in Different Latitudes of Heilongjiang Province
Authors: Wang Ji Hua , Wang Miao , Guan Jian Fei , Gu Wan Tong , Zhou Xiao Qian , Zhang Xue Ping
Published: October 2014

Soil microorganism is a very important component part of soil ecosystem, this paper studied composition and diversity of the cultivable fungal communities in farmland soil in Tahe, Dailing, Maoershan three different latitude regions by means of soil dilution plate and soil particle plate and culture on standard media. The results indicated that the tendency of number of cultivable fungal in farmland soil in different regions: Tahe>Dailing>Maoershan. Scopulariopsis, Chaetomium, Neurospor, Cephalosporium, Aureobasidium and Penicillium occured in farmland soil of three samples, and they were common groups. The cultivable fungal diversities in farmland soil of three sampling regions were no significantly difference, and Dailing was the highest in four different diversity indexes.
Identification and Analysis of the Heat Shock Transcriptor PsHsfB1 in Tree Peony
Authors: Zhang Yan Zhao , Cheng Yan Wei , Ya Hui Yuan , Gao Kai , Han Jian Ming
Published: October 2014

High temperature was an restrictive factor for tree peony growth and distribution in the world. In this study, we identified a heat shock transcriptor PsHsfB1 from our tree peony gene database. Further analysis revealed that the PsHsfB1 was sequence conserved and closely to Hsfs in others plant species. Gene Ontology annotation revealed that the PsHsfB1 was correlated with theromotolorance of tree peony.
Geographical Concentration of Industries in China
Authors: Chen Lin Lin , Jin Feng Jun
Published: October 2014

This paper examines the micro foundations of geographical concentration of Chinese industries using the industry data. The results indicate that China's industry agglomeration degree and concentration degree both go down after rise first; The steel industry and petrochemical industry already show a downward tendency besides the Resource based industry still maintains a high level on the whole; the geographical concentration of the resource intensive industry, technology–capital intensive industry and labor intensive industry are significantly different.
Numerical Simulation on Cooling Effects of Greening for Alleviating Urban Heat Island Effect in North China
Authors: Chen Cheng , Yue Yu , Jiang Wen
Published: October 2014

As the climate warming up, the effects of the urban heat island have been an insurmountable issue in the urban development. In this paper, taking Tianjin for example, the research combined computer simulation with on-site measurement to evaluate the effects of different greening ratios on outdoor thermal environment. Besides, the accuracy of the simulation model has been verified by calibration. Research results determined that the increase of the greening ratio in the existing environment could improve the outdoor thermal environment in summer. But the limitations of green cooling was also pointed out, namely that the air temperature would infinitely close to a certain value with further increasing greening ratio.
The Characteristics and Sustainable Development of Ancient Villages Located in the Northeast of Jiangxi Province - Experiences from the Panxi Village, Jingdezhen City, Jiangxi Province, China
Authors: Nie Zhi Yong , Chen Qi Quan
Published: October 2014

This research tries to offer useful suggestions to support the sustainable development of ancient villages located in the northeast of Jiangxi Province through analyzing the key characteristics of these villages. Taking Panxi village as an example, based on a detailed exploring, the paper introduce he natural and cultural environments of Panxi village at first. Then, the specific characteristics of the village are concluded and following suggestions are presented based on the data.
Advantages and Strategies of Tourism Landscape Development in Harmony with Traditional Calligraphy Art - The Hometown of Confucius and Mencius as an Example
Authors: Zhu Guo Hong
Published: October 2014

In a long time, calligraphy on the stone inscriptions has not played an important role as one of the tourism landscape in the hometown of Confucius and Mencius, which does not match its status as a cultural resort, and does harm to the further development of local tourist production. Taking calligraphy and tourism in the southwest of Shandong Province as an example, based on the analyses of calligraphy and tourism resources, this paper tries to build up "calligraphy brand” as the icon of the southwest Shandong tourism, leading the harmonious development way between calligraphy and tourism, industrialized and cooperated, to explore the cultural and artistic value of calligraphy on the stone inscriptions in the tourism landscape of southwest of Shandong. These will promote the scientific planning and the deep development of tourism of the hometown of Confucius and Mencius, from which to achieve a win-win for tourism industry and popularization of calligraphy.
On Development and Innovation of Tourism Resources of Historical and Cultural City in Jingdezhen
Authors: He Jian Bo , Wang Zhen
Published: October 2014

Jingdezhen is an outstanding historical and cultural city as well as world famous Porcelain Metropolis which has rich tourism and cultural resources. In recent years, Jingdezhen has made some achievements in tourism industry, but it still has some problems in its overall development with slow speed. So it is becoming an urgent problem for how to explore the tourism resources and develop the tourism industry in Jingdezhen. Through analyzing the present situation and existing problems in tourism development in Jingdezhen, this article puts forward some effective measures to deal with the problems, thus, to promote the sustainable development and innovation of tourism resources of historical and cultural city in Jingdezhen.
Theoretical Analysis on Modern Park Landscape Design and Evaluation
Authors: Tang Ting Qiang
Published: October 2014

Based on the unique geographical environment, local manners, architectural styles, historical and cultural traditions, aesthetic taste and landscape, the writer involves landscape ecological studies into the utterance of natural elements and landscape characteristics in design of park landscape, which may achieves the self-development of environment by maintaining diversity of ecology to a certain extent. The landscape planning focus on diversity of landscape based on sustainable development, and forms up the evaluation standards and design principals on park landscape design.
Research on Numerical Simulation of the Crustal Stress Distribution
Authors: Zhou Han Guo , Li Jing
Published: October 2014

In this paper, the Renbei Ordovician reservoir of Renqiu buried hill of Raoyang Depression was taken as an example, the numerical model of geothermal field was constructed. Then, the stress numerical simulation was carried out considering the impact of the geothermal field. The results showed that the result of numerical simulation of crustal stress is consistent with the actual measurements, the maximum horizontal principal crustal stress focuses between-49MPa and-96MPa in this area. The minimum horizontal principal crustal stress focuses between-65MPa and-115 MPa. The total stress focuses between 59Mpa and 95MPa, showing an obvious gradient distribution and a decreasing trend from the northwest to the southeast. The fault zone and the fault transition zone have an obvious partition function to the contour lines of the stress intensity.
Study of Carboniferous Exploration Prospects in New South Margin Area of Block B, Pre-Caspian Basin
Authors: Hong Liang , Chen Kai Yuan , Dai Han Song , Jin Shu Tang , Hao Jin Jin , Ma Feng Liang
Published: October 2014

The new south margin area of Block B is a key risk exploration area in southeastern Pre-Caspian Basin. 4 risk exploration wells were drilled in 2013, and all they have seen oil flow from Carboniferous (KT-I, KT-II), indicating a good exploration prospect. This paper, based on petroleum geologic condition analysis and reservoir characteristic correlation, believes that the main control factors of petroleum accumulation are the hydrocarbon filling capacity deciding reservoir limit and the favorable shoal facies deciding reservoir distribution. Moreover, this paper believes that KT-I has better exploration potential than KT-II, and No.6 shoal developed in upper KT-I should be taken as the key target area of subsequent exploration; In addition, higher uplift possibly exists in the areas adjacent to the southern and southeastern study area, whose petroleum accumulation conditions may be superior to that of the study area, and it should be taken as the preferred area for conducting risk exploration expansion.
Control Effect of Alluvium and Bedrocks on Surface Subsidence
Authors: Yu Xue Yi , Wang Qi , Zhao Bing Chao , Guo Wen Bin , Wang Jin Dong
Published: October 2014

Through analyzing the structure of the alluvium and bedrocks, a discrimination method of main influence factors of surface subsidence was proposed, and the discrimination formula was put forward. Taking the overburden and ground surface of the large cutting height working face in Bin Chang mining region as the research object, the structure and location of key stratum and the structure of the alluvium was analyzed. Besides, through the surface monitoring, the parameters of ground movement and deformation was given, and the discrimination method was verified to be correct. Furthermore, using numerical simulation, the alluvium and bedrocks influences on the surface subsidence under different mining width were studied respectively; the ground movement and deformation characteristics under the influence of alluvium and bedrocks were put forward. The study has provided a basis for the prediction of surface subsidence under certain conditions.
Multi-Fluid Mathematical Model for Blast Furnace and its Parallel Solution
Authors: Meng Jia Le , Shao Jian Hua , Zhao Ai Min
Published: October 2014

Developing blast furnace model is benefit to understand, control and improve blast furnace iron making process. Multi-fluid blast furnace model was established on computational fluid dynamics, reaction kinetics, transport phenomena and other theories. In the model, complicated motion and heat transfer between phases of gas, liquid and solid were considered and numerous reactions in blast furnace were simplified. Because there were so many equations in the model and there were strong coupling relationships between phases, parallel computing technology using computer group was adopted to solve the model to accelerate convergence velocity of iteration. The model can provide versatile information, it is a useful tool to simulate blast furnace operation.
A Review of Shale Gas Exploitation Technology
Authors: Luo Xiang Rong , Wang Shu Zhong , Jing Ze Feng , Lv Ming Ming , Wang Zhi Guo , Zhai Zhen De , Zhang Yu Peng
Published: October 2014

The United States has taken the lead to achieve the shale gas industrial production and created a shale gas revolution throughout the world. According to the exploitation experience of the United States, the key of shale gas business development realization is to adopt horizontal well combined with fracturing technology. At present fracturing technology used commonly include multi-stage fracturing, water fracturing, refracturing, etc. China has great potential in shale gas resource, recoverable resources has 25.08×1012m3, but they are mainly located in the drought and water lack area, and the clay mineral content for shale gas reservoir is higher, the traditional water-based fracturing fluid used for shale gas development caused a lot of water consumption and serious reservoir damage, therefore, it is not suitable for shale gas reservoir conditions in China. In the process of domestic shale gas development, exploring novel fracturing and development technology is irreversible.
Experiment of Driving Oil by Low Frequency Hydraulic Pulse of Low Permeability Reservoirs
Authors: Xiao Zeng Li , Chen Jun Bin , Qin Wen Long
Published: October 2014

The fine grain, poor sorting and high cement content in low permeability reservoirs lead to poor reservoir property, low porosity and permeability and have strong damage to the reservoir .The conventional way of low permeability oil mining is mainly fracture and chemical flooding, which cost is relatively high and will cause serious irreparable damage to formation. People are in favor of physical oil production technology because it is no harm and pollution to the reservoir, more flexible to operate and it has wide range of application and low cost. By using high frequency pulse pressure servo system and ZC-type I, this paper examines the low-frequency vibration oil recovery indoor simulation test device hydraulic pulse oil displacement effect of low permeability cores. The experiment selecting the artificial core (permeability are less than 50), examines the effects of different hydraulic pulse parameters (frequency, static pressure and dynamic pressure) on low permeability core permeability and recovery factor. The results showed that only when the three parameter ,hydraulic pulse frequency, static pressure and dynamic pressure, suitably combined will greatly increase the reservoir recovery efficiency and reduce residual oil saturation.
Experimental Study on the Displacement Performance of Heat-Resistant Polymer
Authors: Chen Tao Ping , Qiu Biao
Published: October 2014

The displacement performance of heat-resistant polymer is evaluated with the artificial cores and natural cores under 95°C. The best concentration of BH heat-resistant polymer is 1500 mg/L, and the best slug is 0.6 PV on the condition of the average permeability is 600×10-3μm2 of the homogeneous core and the oil viscosity is 2.3mPa • s. Under the best concentration and the PV size, BH heat-resistant polymer solution has better displacement effect for the artificial double core whose permeability ratio is less than 4. When permeability ratio exceed 4, the displacement affect no longer increase. When the mobility ratio increase from 0.05 to 0.2, for the artificial cores, the recovery of polymer flooding reduce by 3.17%, and for the natural cores, the recovery of polymer flooding reduce by 2.26%. The recovery of BH polymer that is aged for 90 days after vacuumed is 32.29%. Comparing with the fresh BH polymer, it is lower by 6.56%. That is to say that the aged BH polymer still has good oil displacement efficiency.
Mechanism and Application Effect of Compound Perforation Fracturing Technology in Low Permeability Reservoir
Authors: Xiao Zeng Li , Fan Yong Jie , Chen Jun Bin
Published: October 2014

Compound perforation fracturing technology is a space combination type ultra-deep perforating that can overcome some flaws conventional perforation has, such as shallow penetration and compaction damage. It can remove the compaction band and near wellbore pollution in rock matrix which results from conventional perforation. This paper introduces the theory of effect and influence factor of compound perforation fracturing technology and summarize the advantages for low permeability gas well on the basis of analyzing the mechanism of action about increase production of compound perforation. In order to evaluate the effects of application of this technology in in low permeability reservoir, 11 compound perforation wells and 12 conventional perforation wells were selected which have the similar physical property and the evaluation was conducted in two blocks. The results show that compound perforation can make the formation fracture pressure decrease in 3~5MPa and increase the permeability near the perforation channel. This technology has better effects than the conventional and decrease the cost effectively, improving production in low permeability oil and gas field.
Residual Oil Distribution and Stimulation for SZ 36-1 Oilfield in High Water-Cut Stage
Authors: Li Biao , Zhang Hong
Published: October 2014

SZ 36-1 oilfield has entered high water cut stage, and thus research on the distribution of oil is important for tapping potential in oilfield. In this paper, the distribution of residual oil of SZ 36-1 oilfield was discussed by fine reservoir description and dynamic analysis. The saturation of residual oil at faults, “died oil” between two well, the top of positive rhythm sand body and low (no) permeability interlayer is higher than other situations. We point out that infilling adjustment wells, increasing the oil well productivity and structure adjustment of produced liquid are efficient measures to enhance oil recovery for SZ 36-1 oilfield .
The Research and Application of Crude Oil Fingerprint Technology to Exploration and Development Integration
Authors: Guo Tao
Published: October 2014

As layering trail production is regularly used in monitoring of oil-producing profile during oil exploration and development, stratification testing is applied using downhole tools, which is characterized by high cost and poor randomness. To address this issue, a study into crude oil fingerprint-chromatogram monitoring oil-producing profile is carried out with various advantages such as low cost, continuous, rapid and accurate analysis, as well as good reproducibility and reliability. This program has worked out the difference between chromatographic fingerprint analysis method and characteristic fingerprint peak, completed the construction of chromatographic fingerprint database platform, and developed a software of chromatographic fingerprint computing oil-producing profile.
Effect of Secondary Metabolites from Liquidambar formosana Leaves on the Quality of Kumquat
Authors: Shang Yan Shuang , Liu Yu Min , Liu Ya Min , Li Li
Published: October 2014

The objectives of this study were to study storage characteristics and shelf life of post-harvest kumquats of secondary metabolites from Liquidambar formosana leaves. After pre-impregnation with different concentrations of secondary metabolites from Liquidambar formosana leaves (10, 30, 50 mg/100mL), kumquats were stored at room temperature (14-16°C). Over the storage period, mass loss rate, decay rate, firmness, total soluble solids (TSS), titratable acid (TA), malondialdehyde (MDA), superoxide dismutase (SOD), Ascorbic acid (VC) were measured at 3-day intervals. Results from the study showed that secondary metabolites from Liquidambar formosana leaves reduced decay rate, mass loss and MDA content, delayed the decrease of firmness and TSS, TA, VC content, enhanced the activity of SOD. These results indicate that secondary metabolites from Liquidambar formosana leaves have promising applications in postharvest preservation of kumquats.
Effects of Polysaccharides from the Root of Codonopsis pilosula (Dangshen) on Physical Fatigue Induced by Forced Swimming
Authors: Cai Lin Min , Luo Lin , Zeng Yu Hua
Published: October 2014

This study investigated the effects of polysaccharides from the root of Codonopsis pilosula (PCP) on physical fatigue induced by forced swimming in mice. The mice were divided into five groups, i.e., one control group and four PCP-treated groups. The control group was given distilled water and four PCP-treated groups were given different doses of PCP (100, 200, 400, 800 mg/kg). After 28 days, anti-fatigue effects of PCP were assessed using the forced swimming test, and the exhaustive swimming times, blood lactic acid (BLA), serum urea nitrogen (SUN), liver glycogen and muscle glycogen were measured. The data showed that PCP could prolong exhaustive swimming time of mice by decreasing BLA and SUN levels, and by improving the liver and muscle glycogen contents. The results clearly demonstrate that PCP had anti-fatigue effects.
Effects of Schisandra Polysaccharides on the Learning and Memory Ability in Brain Aging Mice
Authors: Sun Wei Jing , Jing Shu , Wang Chun Mei , Zhang Cheng Yi , Sun Hong Xia , Li Jia Hong , Sun Jing Hui , Chen Jian Guang , Li He
Published: October 2014

This study focused on the improvement of Schisandra polysaccharide on the learning and memory in D-galactose-induced brain aging mice, to lay the foundation for the prevention and treatment of brain aging and related diseases. D-galactose was used to establish a mice brain aging model, Morris water maze and passive avoidance test were used to observe effects of Schisandra polysaccharide on the learning and memory ability of D- galactose-induced brain aging mice. The results showed that Schisandra polysaccharide could prolong the time of target qundrant, increase the number to cross the original platform in the Morris water maze test, and prolong the latency and reduce the number of errors of mice in the passive avoidance test. It is believed that Schisandra polysaccharide could improve the learning and memory ability of mice with brain aging.
In Vitro Antioxidant Activities of Polysaccharides from Agaricus bisporus Mycelia
Authors: Zhou Tao Ying , Wang Zi Lin , Chen Nian You , Chen Quan Sheng , Li Xing Yuan , Bi Yu , Yang Hui De
Published: October 2014

In present study, in vitro antioxidant activities of polysaccharide from Agaricus bisporus mycelia (PABM) were evaluated using 1,1-diphenyl-2-picrylhydrazy (DPPH), hydroxyl (ˑOH) and superoxide anion (ˑO2-) radicals scavenging activities. The results indicated that PABM could significantly scavenge DPPH, hydroxyl and superoxide anion radicals. Thus, PABM can be used as natural antioxidants in functional foods or medicine.
Study on Extraction of Polyphenols from Black Soybeans and Antioxidant Activity
Authors: Xiao Chun Ling , Ren Ying , Ding Hui Ling
Published: October 2014

In this experiment black soybeans as raw materials,different factor on black beans polyphenol extraction yield influence,and studied the polyphenols antioxidant activity through establishing DPPH· system,·OH system and reducing power system,and compared with Vc. The result showed that:the optimum extraction conditions were the ratio of liquid to Solid was 32:1,ethanol concentration 48%,time 95min,temperature 90 °C.In these conditions, the yield of polyphenols was 8.953mg/g. The scavenging effects of polyphenols and Vc on DPPH·, ·OH force increased with increasing concentration,and the scavenging effects of polyphenols on DPPH· and ·OH higher than Vc when between in 11~31 μg/mL.When concentration is more than 12μg/mL,the scavenging effects of polyphenols on ·OH is higher than Vc.
The Health Effects of Sea Buckthorn
Authors: Zeng Lei , Tang Huai Jian
Published: October 2014

Sea buckthorn is a deciduous, hardy, multipurpose species, widely distributed all over the world. It contains different kinds of phytonutrients and bioactive substances, and which has a good potential for producing various processed products, especially its oil, desirable for nutraceuticals, medicinal and cosmetic purposes. The paper mainly reviews the nutritive and therapeutic values of sea buckthorn.