bluuebunny/crossref_metadata_2025 huggingface dataset:
Decoupling between Construction Land Change and GDP Growth in China
Authors: Zhao Xiao Fan , Xu Li
Published: December 2013

In order to analyze the relationship between urban construction land and economic development, and to know the similarities and differences of the relationship in different province in China, decoupling theory was introduced to analysis the relationship between construction land change and GDP growth. Research showed that, during 2003-2008, spatio-temporal difference was existed in every province in China about decoupling and coupling degree between construction land change and GDP changes. At the same time, there was also the leading type or major change trend. (1) During the 2003-2008, from the national scale, the interaction between construction change and GDP growth varied from weak decoupling state to the weak coupling condition. (2) Decoupling degree between construction change and GDP growth has a little difference in each provincial region in China, which showed majority continuous distribution in space. (3) Decoupling process between construction land and GDP growth may be turn into opposite direction, and the process was tortuous.
Hydrological and Sediment Characteristics of Sand Ridge Field in Jiangsu Coastal Area of China
Authors: Chen Cheng , Wang Yi Gang , Huang Hui Ming , Chen Da Ke , Yuan Chun Guang
Published: December 2013

The sand ridges field in Jiangsu coastal area has been the key region of tidal flat reclamation, waterway regulation and port construction. Adopting the hydrological and sediment data in winter, the tidal patterns were revealed. In addition, the depth-averaged velocity, sediment grain size and sediment concentration in each station were analyzed and compared in detail. The result shows that the tidal in study area is regular semidiurnal and diurnal inequality. The velocity has a decreasing tendency with the Tiaozini water area being centered towards the surrounding areas. The grain size gradually decreases and then increases from north to south, while the sediment concentration gradually increases and then decreases from north to south.
Environmental Evaluation for Three Typical MSW Incineration Based on Life Cycle Assessment
Authors: Ma Jing Yi , Chen Xing Yu , Su Wei
Published: December 2013

Garbage incineration is an effective minimization and resource processing methods, but there are no comparative analysises about the environmental impact of incineration processes. To investigate the environmental impacts of three typical MSW incineration processes, we modeled scenarios, calculated energy consumed and six aspects which classified as GWP, ODP, AP, EP, POCP and DUST. The classification results showed the value of the environment impact potential respectively. The impact potential of heat recover-dry absorption processes according to normalized results in descending order is GWP>EP>DUST>AP>POCP>ODP, in contrast the rank of heat recover-wet absorption and semidry processes is GWP>EP>AP>DUST>POCP>ODP, global warming impacts is the most significant penitential factor. The rank of impact potential according to weight factor in descending order is GWP>EP>DUST>AP>ODP>POCP. Dust potential became more significant. The weight factor of Dust is almost twice as much as that of AP. This is because there is a large gap between baseline level and the target level, the solid-waste are the focus of control in these years. In environmental terms, the environmental depletion index of heat recover-dry absorption process is lowest with minimal environmental impact and the heat recover-wet absorption process is the highest with largest environmental impact. The incineration with dry absorption program is the best environment-friendly process in term of environmental impact. Utilization of waste water and reducing total amount of water entering the system can effectively reduce the environmental implication for both HW and HS processes.
The Analysis of Influential Factors of Geology Affecting Ultimate Recovery during Polymer Flooding Converted to Follow-Up Water Flooding
Authors: Qu Guo Hui , Gong Xing Guo , Hui Peng Bo
Published: December 2013

This paper focuses on the factors affecting the last stage during the polymer flooding the follow-up water drive. The purpose is to sustain the development production and the sweep improvement in oilfield. By applying the STARS module of CMG to establish an ideal model, apply Numerical simulation method to analyze the influence of geological factors on the recovery. The research results show that permeability max-min ratio and connectivity have greater impact on the ultimate recovery.
Online Measurement of Oil in Waste Water Based on Surface Plasmon Resonance Fiber Sensor
Authors: Jiang Xue Hua , Meng Qing Min
Published: December 2013

The fiber sensor based on SPR, surface plasmon resonance, could effectively overcome the shortcomings of the existing measurement methods of oil in waste water, such as outdated detection ways, low measurement accuracy, poor adaptive ability environment, and so on, and it had extensive research and application value. On the basis of analyzing the principle of SPR, the fiber sensor based on SPR was designed and the system structure model was given. The solutions of oil and waste water with different concentrations were tested and the relation between resonant wavelength of SPR spectra and refractive index of the tested solutions were obtained. The experiment results show that it is feasible that the fiber testing technology is used to measure the oil in waste water, and the study has certain significance in sewage disposal for the petrochemical industry and water reuse.
Effects of Rare Earth (RE) Additives on Performances of Micro-Arc Oxidation Coatings Formed on Aluminum Alloy
Authors: Huang Dan , Zhang Xiao Yan , Wu De Feng , Zhou Xiao Song
Published: December 2013

Scanning electron microscope (SEM), X-ray diffraction (XRD), VSP electrochemical workstation and friction and wear tester equipment are applied for comparing the effects on organizations and properties of micro-arc oxidation fabricated on a piece of aluminum alloy sample with additives of La (NO3)3 or Ce (SO4)2. The results revealed that both coatings with these two different additives are consisted of α-Al2O3 and γ-Al2O3, but the peaks of main phases are evident with La (NO3)3. Compared the two different coatings, it could be found that less micro-cracks can be observed from the coating with La (NO3)3 additive. Beside this, aperture in this coating is also smaller and corrosion resistance and wear resistance are much better.
Calculation of Crack Width of Steel-Concrete Composite Beams Prestressed with Internal Tendon
Authors: Jiang Shuan , Bai Li Li , Xue Wei Chen
Published: December 2013

Steelconcrete composite beam prestressed with internal tendon (SCCPIT) is composed of prestressed concrete slab, steel beam and shear connectors, etc. At present, there is no calculation formula for crack width of SCCPIT in current design codes Eurocode 4, ASSHTO or Chinese Code for Design of Steel Structures (GB 500172003). In this paper, the calculating formulas for crack width provided in Code for Design of SteelConcrete Composite Structure (DL/T 50851999) were adopted as a basis for modification. On the basis of available test results, the calculation formulas for uneven coefficient of reinforcement strain and average crack space were modified by consideration of concrete slab width and combined force ratio. Hence, empirical calculating formulas of crack width of SCCPIT under negative moment were proposed. In order to verify the accuracy of the proposed formulas, five simply supported SCCPITs previously conducted by research group were analyzed, and comparisons indicated that the calculated values are in good agreement with the test results.
A Study on Forming Mechanism of Braking Torque on the Friction Surface
Authors: Su Zhu Yu
Published: December 2013

The process of vehicle brake, the influence of the temperature on brake friction directly determines the braking force and the frictional coefficient, and has a huge impact on the braking torque. Based on the characteristics of frictional material, combining with modeling and simulation tests, researching the basic theory of braking technology, contribute to the stability and enhancement of braking performance.
An Experimental Study on Anti-Corrosion Coating of Ground Oil and Gas Equipment
Authors: Yang Hao , Geng Wan Peng , Hu Jian
Published: December 2013

This common ground for today's oil and gas equipment corrosion paint, accelerated through the neutral salt spray corrosion test, Indoor UV / Condensation accelerated weathering test, Water permeability test and Resistance to chloride ion permeability test on the ground pipelines and oil and gas equipment commonly used Preservative fluorocarbon paint, silicone and acrylic polyurethane coating research laboratory tests carried out by these kinds of High-performance anti-corrosion paint used for comparison, the three coatings have good weather resistance, Fluorocarbon coating seepage rate lower than the other two coatings, anti-UV aging better than the other two coating, Fluorocarbon coating chloride ion penetration lower than the acrylic polyurethane coating.
Experiments and Analysis on Thermoelectric Generators of Automotive Exhaust under the Multi-Field Coupling
Authors: Wang Wen Shuai , Liu Xun
Published: December 2013

The present experimental and analytic study reports a new thermoelectric generation (TEG) system, working with heat exchangers to produce electricity from a limited hot surface area. Results are obtained for generators using a coupling condition of heat-flow and flow-solid coupling analysis to obtain the temperature, heat, pressure field of heat exchanger. These fields couple together to solve the multi-field coupling of the flow, solid, heat, and then the simulation result is compared with the test bench experiment of TEG, providing a theoretical and experimental basis for the present new exhaust gas waste heat recovery system.
Grinding Affect the Service Life of Mould Research
Authors: He Fang
Published: December 2013

In the process of modern mould manufacturing, grinding work still account for 25% ~ 45% of the total manufacturing time mould. Mould manufacturing quality of the finished product is closely related to the precision of mould manufacturing, particularly with the mould cavity surface accuracy and surface roughness has a close relationship. In the manufacturing of mould to make grinding micro cracks and residual stress is reduced to a minimum, full attention, grinding process in order to improve the service life of mould. So research to improve grinding processing quality, improve the service life of the mold, to extend the time of service, has the positive significance
Research on Macro Cyclic Polyamine Complexes of Transition Metal and Catalytic Properties
Authors: Lei Hong
Published: December 2013

This article Synthesis of carbohydrate ligands of coordination ability, to react with metal Chlorides to get more stable complexes, and elemental analysis, infrared, Ultraviolet Spectroscopic characterization and analysis of nuclear magnetic resonance. Characterization of its structure and study on the hydrolysis activity of pnitrophenyl picolinate lipid and the activity of pnitrophenol solution of phosphate, disodium macrocyclic polyamine catalyzed by macrocyclic polyamine metal complexes. The results show that the effect of hydrolytic activity of macrocyclic polyamine complexes is much larger than the hydrolysis activity of ordinary metal complexes; it can be important significance to find a better way of cutting nucleic acid by hydroxylation.
Measurement of Cam Spacing on Assembled Camshaft Based on Improved Fundamental Matrix Calibration
Authors: Li Guan Nan , Tan Qing Chang , Liu Si Yuan
Published: December 2013

Imaging model of double CCD camera based on pinhole camera model and distortion model is introduced, and the fundamental matrix is presented. Distortion model is led into the fundamental matrix calibration. Based on the imaging model of Z. Zhangs calibration method, fundamental matrix is carried out. Pixel coordinate for calibration is modified by cameras interior parameters and distortion coefficients. Base on the imaging model of double CCD camera, measurement model for cam spacing is established. Cam spacing is measured by the feature of cam edge. In experiments, accurate pixel coordinates of model plane were used in calibration. The distance between a point and its corresponding epipolar line was estimated as the error. The measurement results show that the accuracy of proposed method satisfied the monitoring requirements of the axial positioning error of the cam piece.
Optimum Dynamic Shifting Opportunity Research of 3 Parameters Shifting for High Power AT
Authors: Xia Pei Jie , Guo Xue Xun , Wang Ying , Liu Bin
Published: December 2013

Taking the AT of SUVs SX2300 for example, this paper builds shift schedule based on three parameters, and focuses on the method of calculating shift opportunity under dynamic property situation.
The Finite Element Analysis of Tripod Universal Joint in Car Based on ANSYS Workbench
Authors: Xiong Ge , He Tian Ming
Published: December 2013

Based on the finite element method, the contact analysis on the tripod constant velocity joint widely used in the car was conducted. The settings of material attribute, boundary conditions processing, and the contacting setting of constant velocity joint used in the finite element software ANSYS Workbench were expounded. Through the contacting analysis, the contacting situation of stress was acquired, and it is concluded that the fatigue life and safety factor of the whole universal joint. This article has a certain practical value to study universal joint weak part under the action of fatigue, and provides a reference for the universal joint design and improvement.
Numerical Simulation of Spray Quenching Heat-Treatment Process of Backup Roll
Authors: Liu Zeng Hui , Wu Chun Jing , Zhang Ying Jie , Su Jun Xin , Cui Cong Cong , Wang Shi
Published: December 2013

This article uses Finite-difference time-domain (FDTD) method in the spray quenching process of the backup roll, which calculated the temperature field, the phase transformation and the hardness of the backup roll. The results showed that there was high temperature gradient on the surface of back up roll at the beginning of the spray quenching process and the tempeurature decreased rapidly. The beginning of the spray quenching process is a key stage. The radius martensite content decreases from outside to inside gradually, the maximum depth that martensite occurs was about 150mm from the surface. Martensite point affected the surface hardness very slightly, whereas impacted the hardening depth strongly.
Growth and Epitaxy of ZnO Nanowires on Brass Substrates
Authors: Wang Chao , Cai Rong Sheng , Diao Fei Yu , Yuan Lu , Zhou Guang Wen , Wang Yi Qian
Published: December 2013

One-dimensional nanostructures exhibit interesting electronic and optical properties due to their low dimensionality leading to quantum confinement effects. ZnO has received lot of attention as a nanostructured material because of unique properties rendering it suitable for various applications. In this paper, ZnO nanowires are synthesized in large quantity through thermal oxidation of brass (Cu0.7Zn0.3alloy). The epitaxial relationship between the brass substrates and ZnO layer and the epitaxial relationship between the ZnO nanowire and ZnO layer have been examined.
The Fatigue Performance Test on Automotive Frame Steel Using Two Dimensional Up-and-Down Method
Authors: Xue Huan , Li Rong Feng , Peng Wen Jie , Kuang Lan Xiang
Published: December 2013

The fatigue performances of two types of automotive frame steel include WL510 and WL590 are test with both traditional up-and down method and two dimensional method. In order to take the thickness effect into account, two series of WL510 samples with 6mm and 8mm thickness respectively are selected. Some important parameters of the two dimensional up-and-down method is introduced. Six cases of testing using two dimensional method are compared with the tradition one. Results shows that the fatigue limits of two dimensional method are much closer to the full sample results than the traditional one dimensional method. When the number of the test samples decreases, the deviation becomes larger, and the deviation is still very large even use two dimensional method when the test is with very few samples. In order to guarantee the result accuracy, at least 4 stress pairs are suggested be kept in the test.
Analysis and Measurement for Deformation of Embankments Widening with Single Side on Soft Soil Foundation
Authors: Wang Jing Huan , Hu Ke , Chen Qing , Wu Yong
Published: December 2013

When widening a road different settlements and pavement cracking along the joint between the old and new embankments often appear. The effects on old embankment which are caused by new embankment with additional load are analyzed with finite element method based on D-P model, through the comparative analysis of the field monitoring data information and result of finite lement numerical simulation.The results indicate that the construction of new embankment induces unacceptable differential settlements between the center and the shoulder of old embankment, cent gold embankment moves upper and lower slightly near the center line; old road shoulder has larger horizontal displacement outward pointing to lateral side of the road; new embankment near the slope angle has larger horizontal displacement pointing to medial side of the road, the position of maximum settlement appears in the center of embankment surface during widening, moves outside gradually, and shows certain regularity.
Numerical Simulation for Lightning Zoning on an Aircraft
Authors: Sun Ke Yan , Zhao Xiao Ying , Zang Hong Ming , Zhang Gong Lei
Published: December 2013

In this paper, a numerical simulation method based on fractal theory is presented to simulate lightning attachment points on airplane. The dielectric breakdown model is used to simulate the fractal growth of the lightning leaders, which meets physical mechanisms and geometric characteristics of nature lightning. The process of the airplane struck by lightning is simulated according to the relevant provisions about aircraft lightning attachment points test in standard SAE-ARP5416. The distribution of aircraft lightning attachment points are obtained through substantial repeated simulation. Because the probability distribution of lightning attachment obtained through the simulating is almost in line with those obtained through actual aircraft flight test, the validity of the proposed method is verified.
Analysis of Energy Distribution for Digital Electronic Detonator Blasting
Authors: Cheng Wei Feng , Wang Zhen Yu , Chen Yin Lu , Liu Guo Hua
Published: December 2013

Excavation blasting has a great impact on the buildings, therefore, it is important to control blasting vibrations. In this paper, based on the time-energy density analysis and wavelet packet analysis for measured data of blasting vibrations, some useful results can be concluded. Firstly, the energy of Millisecond Detonator Blasting (MDB) vibration signals in the 0~200Hz band accounts for 90.06% of the total energy, and its advantage energy mainly distribute in low-frequency band. However, the energy of Digital Electronic Detonator Blasting (DEDB) vibration signals in the 0~600Hz band is 96.08% of the total energy, its advantage energy mainly distribute in wider band. Moreover, the time-energy density curve of DEDB doesnt have the abrupt and separated fluctuation, which indicates the interference and superposition of DEDB are very distinct. The controlled DEDBs and tunnel support measures of this project have achieved a good effect. The comprehensive benefits are remarkable and it has an important significance for improving the level of blasting technology.
Low Energy Consumption Metro Station System Technology
Authors: Huang Wen Hui , Wang Shuo , Zhou Yu
Published: December 2013

Public railway transportation has been universally utilized in urban cities, for it faster, safer and more convenient way of transportation. Due to the development of science and technology, todays metro stations are intelligent and electronic. However, it would lead to more energy consumption while lots of electric facilities (e.g. ticket-checking system, air-conditioner, etc.) are widely operated. This article will present sorts of solutions to decrease the energy consumption on metro station, utilizing energy recuperation ticket-checking systems. Firstly, the feasibility of this solution would be proved by the data based on the research of Chinas urban railway transportation systems. And then several current solutions on energy recuperation ticket-checking systems will be analysis. As the most important, the tendency of this type of ticket-checking system will be illustrated. Finally, the prospect of energy recovering gates will be given at the last of thesis.
The Reliability Design and Analysis of Series Constant Current Remote Power Feeding System of Seafloor Observatory Network
Authors: Wang Xi Chen , Zhou Xue Jun , Zhang Yang
Published: December 2013

The paper makes a deep analysis of the series constant current remote power feeding system which is used in seafloor observatory network. The reliability design and allocation scheme used to minimize the total cost of the system in certain condition is accomplished, and the nodes power feeding reliabilities are calculated. The analysis shows that series system can provide a reference solution for seafloor observatory network construction in our country.
Research and Design for a Cell Wheel of Seed-Drille Appliance
Authors: Yang Jie , Zhao Wu Yun , Dai Fei
Published: December 2013

The key components of planter was the cell wheel, its performance directly affected the quality of the seed. Seed-drille appliance used when faced with a sliding clearance kinds of seed material damage, as well as from the end of seeding mouth kind Gully large distance seeds during seed cast seed tube wall by conduction caused by obstruction seeds bounce in the ditch, affecting the spacing and reduce spacing pass rate and other issues. For the above agronomic requirements, the process of drilling was researched, and the cell wheel of seed-drille appliance was designed legitimately. The diameter of the seed-drille appliance and the hole type of the cell wheel and the number of the hole was calculated.
Design and Test of Double Row Dibbling Wheel Precise Seeder for Membrane Covering the Whole of Double Furrow Planting Corn
Authors: Yang Jie , Zhao Wu Yun , Dai Fei
Published: December 2013

This machine was for membrane covering the whole of the double furrow sowing technology and designed. They were designed to meet membrane covering the whole of the double furrow sowing technology agronomic requirements of the premise, but also to meet planting can improve efficiency, stable, reliable and cost requirements. For the above requirements, the machine used double Dibble wheel structure; field test results show that the aircraft meet the design requirements and agronomic requirements.
Exposure Assessment of Nano-CaCO3 Manufacturing Workplaces
Authors: Zhao Peng , Tang Shi Chuan , Wang Yu Qian , Yu Zai , Liu Jie Min
Published: December 2013

Eight nanosized CaCO3 (nanoCaCO3) manufacturing workplaces in a plant were investigated for the possible exposure to nanoparticles (NPs). Personal sampling, area sampling, and real-time monitoring were performed using CPC (condensation particle counter) and OPC (optical particle counter) to characterize the mass exposure, particle size distribution, and particle number exposure. Only the mass concentration for area samplings in package and waste treatment workplaces were found to exceed the PNOS (particles not otherwise specified; 3 mg/m3) set by ACGIH (American Conference of Governmental Industrial Hygienists), but lower than the OELs (occupational exposure levels, 4.0 mg/m3) set by the China Ministry of Health for CaCO3 fine, other workplaces were relatively lower than existing occupational exposure limits. The NPs and fine particles were most frequently released in package and waste treatment workplaces lacking of the engineering control. The mass concentration for area sampling in waste treatment workplace reached their highest values at 3.2647 mg/m3, while the number concentration in package workplace reached their highest values at 4.07×1011 pt/m3. So the workplaces of package and recovering particles in nanoCaCO3 handling progress were the major emission sources of NPs.
Research and Development of Knowledge Base Management System Based on the Informationization of College Education
Authors: He Jian Bo , Wang Zhen
Published: December 2013

The aim of this paper is to establish a set of knowledge base management system based on the informationization of college education. In this study , focused on the practical problems in college education administration, information technolgy was used to establish a set of integrate knowledge base. Based on analysis of backgrounds of knowledge database, aims and significances, etc., the framework of educaion informationization system was studied, the model of education informationization system contents and the problems might face were demonstrated, and the development, utilization and management of the system were also investigated.
The Empirical Analysis of Cable TV Network's Transformation under the Background of Convergence
Authors: Zhang Jing , Zeng Jian Qiu , Yuan Ye
Published: December 2013

This research focus on the influence of the network convergence to the cable TV network enterprises. Based on the literature review, status quo and case study, this research combines the collection of open questionnaires, generalizes the influencing factors of the cable TV networks transformation that involve external and internal factors. The influence of external factors is evaluated by the influence of each factor to the component elements of the model, while that of the internal factors is estimated through that to the enterprises competitive advantage. Therefore, this research establishes the structural equation model, followed by the corresponding hypotheses and tests.
An L-Band Low Spurious Multi-Tuned Frequency Synthesizer
Authors: Mu Fei Yan , Ye Bao Sheng , Lin Jie , Kang Zhong Jian
Published: December 2013

This paper designs an L-Band 1880-1980 MHz low spurious Multi-tuned frequency synthesizer. The frequency source utilizes a DDS to directly stimulate a PLL, which makes a balance between the DDS and the PLL complementary to each other, realizing better specifications. Meanwhile, in order to achieve better spurious suppression with wide loop bandwidth, a method based on triple tuned algorithm is introduced. This algorithm avoids the high level spurious components triggered by the DDS falling in PLL’s bandwidth, refining the structure of the DDS-directly-stimulating PLL circuit frequency lock time and spurious to improve performance. The simulation result shows that the frequency source achieves a frequency range of 1880MHz～1980MHz, a frequency resolution of 1MHz, a spur better than 80dBc, a phase noise of -103dBc/Hz@100kHz and a frequency lock time less than 2 μs.
The Design of Digital Ear Thermometer Based on MSP430
Authors: Zhang Jian Jun
Published: December 2013

In this paper, we study the digital ear thermometer controlled by MSP430F149 microcomputer. The system gets the temperature by using infrared temperature measurement module TN9. We can display the temperature on the LED and broadcast the real-time temperature by speaker.
Research on Satellite Formation Establishing in Elliptical Orbits Based on Two-Impulse Control
Authors: Shi Jian Wei , Cai Yuan Wen , Xie Wei Qi
Published: December 2013

In order to solving the establishment problem of satellites formation establishing in elliptical orbits, the problem of Lambert transfer based on two-impulse control with unfixed time and initial position is studied. The Niche Genetic Algorithms (NGA) is used to locating the optimal transfer orbit, and the transfer time and initial position are coded into genetic algorithms, as well as the fitness functions are designed to total coasting. The results show that the NGA can solve the optimization problem of two-impulse control effectively, furthermore, the performance of NGA is more effective than the traditional genetic algorithm. The research provides a way for satellites formation establishing based on two-impulse control.
Development and Realization of Experimental Box Based on P89V51RB2 Single Chip
Authors: Nie Ru
Published: December 2013

Nowadays, we need more convenient facilities to start from the digital microcontroller technology, towards digital control, intelligent control for the modern work, scientific research and life. Compared with the traditional experimental box, P89V51RB2 single chip experiment box is more easy to use, has accurate reading, contain comprehensive and practical experimental circuits. To satisfy the demand of higher school, add other functions such as assembly language based on the existing experimental box.
The Research of Distribute Police Location System
Authors: Li Sheng
Published: December 2013

In this paper, the development and analysis of Police Location System by GPRS wireless communication are researched, a new Distribute Police Location System which adopts the method that transmits data algorithm is WMMP(wireless machine management protocol) is designed. The packet loss rate of the system can be controlled very well, thus, a better efficiency is achieved. The Police Location System is composed of locating terminal and software with GIS and E-Map. The location system for police establishes a IDs network for policemen, who is out for emergency, it can ensure the safety of policemen and supply surveillances for the policemen during their mission. Details of the system are discussed below.
The Research on the Police Adaptive Wireless Communications
Authors: Zhao Chuan Sheng
Published: December 2013

Most Current researches about the police adaptive wireless communication are concentrated on the area of the time-invariant channel model, which is not fit to the requirement of police application. This paper designed an time-variant ISI channel model, according to the characteristics of police wireless communication. And analyzed the performance of the LMS and the RLS algorithms in DFE structure adaptive equalizers, under the time-variant ISI channel model. Simulation shows that the designed adaptive equalizers obtained excellent performance.
The Design of Real-Time Control System Based on Single-Inverted Pendulum
Authors: Ou Qun Yong
Published: December 2013

An inverted pendulum is a classic control problem and is widely used as a benchmark for testing various control algorithms. First, this paper analyse the dynamic and non-linear model of the inverted pendulum, then focus on the real-time control of the inverted pendulum, we developed real-time control software for the single-stage inverted pendulum by using Visual C++ 2010, its mainly operate API functions to control board and implement various control algorithms.
Optimal Beam-Forming Design in Cognitive Relay Networks under Interference Threshold
Authors: Liu Zi Jun , Gao Zhan , Li Guo Xin , Zhang Hai Tao
Published: December 2013

Recently, a new model for cognitive radio networks appears, in which a cognitive user (CU) can relay the primary data stream to improve the performance of the primary user s communication. Traditionally, the transmitter of the cognitive users will send data to the receiver of the cognitive users and relay the data sent from the primary user (PU) in different time slots. However, Multiple Input Multiple Output (MIMO) provides a remarkable increase in the spectral efficiency, which can transmit multiple independent data streams in a time slot with MIMO antenna. Based on the MIMO technique, we propose a novel framework, in which the cognitive user near by the primary user is equipped with MIMO antenna. In this paper, we search for the maximum sum-rate of the cognitive user, limiting the interference to the primary users. Simulation results show that the proposed method can really improve the performance of the cognitive relay networks.
Research of the Pepper Environment Monitoring System Based on IOT
Authors: Gong He , Wu Zi Yu
Published: December 2013

In order to improve greenhouse pepper production and efficiency, improve economic efficiency of enterprises, using the Internet of things to JN5148 core, this thesis describes a pepper cultivation environment monitoring system. The system can collect a variety of environmental parameters in the process of pepper cultivation, real-time and remote online monitoring actuators in greenhouse, and it isnt restricted by areas. The system is flexible, easy to use, conforms to the agricultural development trend characterized by intelligence, information and networking. And it promotes pepper production to large-scale and intensive production.
Determination of Ferulic Acid in “AI-FU-NUAN-GONG” Pills by High Performance Capillary Electrophoresis
Authors: Liu Hai Xing , Liu Qing , Chen Xia , Huan Yan Fu , Wang Lin Tong , Ye Kai Qi , Zeng Guang
Published: December 2013

High performance capillary zone electrophoresis (HPCE) was used in this text to determine the content of ferulic acid in a ready-made Chinese herbal medicine called AI-FUNUAN-GONG (in pills). Electrophoretic separation conditions: Uncoated fused silica capillary column (75um×49/58cm), injection height 7.5cm, 30mmolL-1 borax solution, separation voltage 20kV, injection time 10s, detection wavelength 315 nm, experimental temperature 20°C.Linearity was kept in the concentration ranging from 1~62.5 mg·L-1 of ferulic acid with correlation coefficient of 0.970. The average recovery was 97.541% and RSD value was 6.57%. Sample content of ferulic acid was 0.0715mg/g. This method has the advantages of strong specificity, simpleness, speediness, accurate results and good repeatability in separation and it is useful for determination of ferulic Acid in AI-FU-NUAN-GONG Pills.
Research and Design on Inspection Robot for High-Voltage Transmission Lines
Authors: Liu Yan , Wang Yong Gang , Xu Jin Kai , Li Xiao Zhou
Published: December 2013

The paper introduces a kind of inspection robot for high-voltage transmission lines from two parts:Mechanical structure and control system. Three arms is adopted in the mechanical structure, while the control system used a hierarchical modular control scheme is designed to a kind of three-layer control structure including the ground monitoring layer, the task decision layer and the action execution layer. The PC/104 and AT89C51 is used for the main control computer, and the MX-servo is used for the power drive components. Except for describing the robots working process of crossing obstacles in detail, the paper also introduces the responsibilities, hardware components, software design process of the control system. From the simulation experiment on motion control system using Matlab/Simulink, we can conclude that the motion control system of the robot has high-stability and reliability and meet the design requirements.
Comparative Study of 428XL and GEIST438 Telemetry Seismis Instrument
Authors: Zhang Shuai Shuai , Lin Jun , Sun Fu Jin
Published: December 2013

428XL Sercel's a whole new concept design of a reliable, low power consumption, high precision, with channel capacity, compatibility strong earthquake Instruments data acquisition system. In large telemetry seismograph systems need to import most of Instrument Science and Electrical Engineering of Jilin University breakthrough design constraints of conventional seismographs designed a lightweight, highly integrated, easy to operate telemetry seismic system-GEIST438. This article describes the characteristics of the two systems, with a focus on a variety of ground electronic equipment technical performance of the two systems were compared, Last the GEIST438 how ultra ten thousand telemetry seismograph system were discussed.
Method of Realizing CNC Hand Wheel Function with CPLD
Authors: Zhan Hua Qun , Xu Bin , Zeng Juan Ying , Yuan Zai Song
Published: December 2013

This paper briefly introduces the CNC hand wheel and analyzes the working principle of CNC hand wheel. Here make a circuit board based on the hardware design and software implementation. Simulation results were presented in this paper. Using this method can eliminate the interference of the hand wheel signal effectively and record the pulse signal of hand wheel accurately, and have achieved good results in FOXCONN.
Optimal State Feedback and Fuzzy Adaptive Compensation Control of Brushless DC Motor
Authors: Zhu Bao Long , Li Min , Sun Wei , Sun Hui Min , Fu Chao
Published: December 2013

In order to improve the dynamic response, the steady state precision and the anti-disturbance capability of the brushless DC motor drive system, a kind of adaptive compensation control strategy combining with the linear quadratic optimal control and fuzzy control theory is proposed in this paper. According to the state space model of Brushless DC motor, the Kalman filter is adopted to estimate the state variables. The optimal state feedback control matrix is given by linear quadratic optimal control theory. The deviation caused by random disturbance is compensated by the output of fuzzy controller. The results of simulation show that proposed method can not only effectively suppress random disturbance, but also has good speed regulation performance.
Bang-Bang Control of the Multi-Cylinder Synchronization Hydraulic System of Pusher
Authors: Zhao Guo Hua
Published: December 2013

To the pusher and variable load synchronous motion of hydraulic dual-cylinder system, the "Bang-Bang" control mechanism and the non-continuous control technology are adopted. The hydraulic system that used the ordinary realizes a synchronization error less than two percent. The stability and reliability of the system are improved and the cost of the system is reduced. Especially in the pusher and other industrial areas, the hydraulic system is more suitable for engineering application. By the ability of computers software servo control, the output of the application system can meet the performance standard and make complex mechanical control. it proves that a non-continuous control method is an effective way to carry out the digital control.
Microwave-Assisted Synthesis of Anilinocarbonyl Acetylene: A Quick Access to Terminal Alkynes
Authors: Jiang Yu Bo , Han Chun Mei , Liang Xue Qiu
Published: December 2013

A facile synthesis of anilinocarbonyl acetylene was achieved in a microwave-assisted condition via condensation of anilines and propiolic acid. The reactions can be completed smoothly within 10 minutes at 30 °C, producing terminal alkynes with excellent yields.
The PLC Control System Design of Radial Drilling
Authors: Yang Guang Chun , Zhang Qi
Published: December 2013

Focus on the disadvantages such as complicated circuit , poor reliability, difficulty troubleshooting and etc of the traditional relay-contactor control system of Z3040 radial drilling machine, the PLC control system design plan was proposed, the hardware and software design of electrical control system included the PLC selection, the I/O terminal assignments, the I/O hardware wiring diagram drawing as well as the PLC ladder program design was completed in this thesis based on control theory analysis of radial drilling machine.
A New Clustering Routing Algorithm for WSN Based on PSO
Authors: Wang Li Fu , Ding Jian , Kong Zhi
Published: December 2013

A wireless sensor network (WSN) consists of spatially distributed wireless sensor nodes. The node power constrains the development of WSN. Employing techniques of clustering can reduce energy consumption of wireless sensor nodes and prolong the network lifetime. Therefore, in the study a new clustering routing algorithm is presented. The clustering algorithm uses the double-layer sensor nodes to communicate. And in order to optimize power energy consumption for WSN node energy, PSO algorithm is employed to find cluster head in each layer. Simulation results show that the algorithm not only can equal power energy of node, but also can reduce consumption in the long distance data transmission.
Study on the Application of Computer in Industrial Design
Authors: Liu Jing , Li Jing , Liu Hao
Published: December 2013

In the modern art design, the computer can not only help people design more exciting, more vivid animation, fashion and advertising products and so on, but also can carry on the automatic control to reduce the people's working pressure as much as possible and improve the work efficiency and work quality. But computer utilization in modern art design can be also improved greatly, how to combine them to one better, which is many scholars researching the problem. This paper, from the relationship between modern art and computer discusses the advantages of applying computer technology to modern artistic design and the reasonable measures.
Impact of Drain-Side nWell Engineering on ESD Robustness in 0.35μm LV MOSTs
Authors: Chen Shen Li , Lee Min Hua
Published: December 2013

A multi-finger nMOST is widely used as an electrostatic discharge (ESD) protection device especially in the input/output pads. However, the contact-spiking leakage phenomenon in an MOST are seriously impacted the ESD capability. Therefore, one drain-side engineering is investigated in this paper, i.e., by adding a negative-type well (nWell) structure in the drain-side of device, hoping to avoid contact-spiking issues to enhance ESD reliability. The nWell width variations will be explored the influence on snapback parameters of ESD devices in a 0.35μm 3.3V low voltage (LV) process. However, after a systematic analysis, it is found that adding an nWell structure in the drain-side will lower ESD capability (It2 value) about 24% for this process. And, as compared with the original reference DUT, adding any nWell in the drain-side will make the Vh value slightly decreasing about 1%.
Study on the Molecular Structure and the Performance of PE100 Resin for Tubing
Authors: Wang Hua , Song Hao Dong , Zou En Guang , Ge Teng Jie , Fang Hong
Published: December 2013

The performance of JHMGC100S, a kind of HDPE for pipe, was studied, and the comparison with other typical PE100 resin in China and abroad was also did. The results show that: the impact strength of JHMGC100S was higher than other samples, and the bending strength was almost the same; the molecular weight distribution was obvious bimodal; the processability of JHMGC100S was good, and the hydrostatic strength of the pipe which was produced by JHMGC100S fulfilled the rule in GB/T 15558.1-2003.
Exploration and Research on Teaching Approach for Embedded System
Authors: Yin Jing , Yang Xiao Fang , Chen Lian Jun
Published: December 2013

In light of social demand for professionals in embedded system and its characteristics, the background in the construction of embedded system majors in universities, objectives, specifications and patterns in personnel cultivation, concepts and measures in the development of curriculum system and practical teaching, development of professional teaching team, teaching management system and mechanism are discussed, and constructive opinions on establishing suitable embedded teaching system in universities are proposed.
An Addressable Broadcasting System Based on Coaxial Cable Transmission
Authors: Ma Hui Min , Liu Yu Ming
Published: December 2013

This paper proposes a addressable digital broadcasting system that can use different frequency/time/coding segmentation implementation zoning control and program delivery. It uses coaxial cable transmission, to achieve 16 sets of different programs and Can overcome conventional broadcasting system can only use a space partition implement partition control defects.
A Fast Algorithm Research of Moving Targets Detection Based on GPU
Authors: Jin Han Jun , Wang Feng Jiao
Published: December 2013

Moving object detection which is an important part of the digital image processing technology is research focus and difficulty in computer vision, pattern recognition, object recognition and tracking, moving image coding, security monitoring and other fields. It also has a wide application prospect in the military, national defense and industry fields. However, when there are large amount of moving targets and exercise conditions, the amount of data generated is also inestimable and target detection is a bottleneck in the data processing at the same time. The work of this paper is to simplify motion detection in optical flow constraint equation solving process and all the solving processes were constructed on GPU for fast speed, then it forms a fast moving target detection.
The Algorithm Research of Lip Behavior Detection Based on LBP Operator
Authors: Chen Lie , Wang Wei , Li Pu , Qin Jian Bo , Li Chao
Published: December 2013

The lip behavior detection is work foundation by utilizing video control software behavior, which including the lip positioning, feature extraction and behavior recognition. It is proposed that we utilize LBP operator to conduct lip feature extraction in this article, and adopt SVM to conduct classification and recognition of behavior. Experimental results show that the algorithm can effectively achieve detection and identification of lip behavior in the article, which meet the real-time and robustness in video processing.
An Improved BP Neural Network Algorithm and its Application in Competitive Advantage Evaluation of Logistics Enterprises
Authors: Luo Feng Lan
Published: December 2013

BP neural network is a hot research field for its powerful simulation calculation ability in various disciplines in recent years, but the algorithm has some shortages such as low convergence which limit the usage of the algorithm. The paper improves BP model with genetic algorithm and applies it to evaluate competitive advantages of logistics enterprises. First the paper designs an evaluation indicator system of competitive advantage of logistics enterprises through analyzing the characteristics of the evaluation indicator; Second, genetic algorithm is used to speed up the convergence of BP algorithm and based on this the paper advances a new competitive advantage evaluation model for logistics enterprises. Finally, the improved model is realized with the data from four Chinese logistics enterprises and the realization of the experimental results show that the model can improve algorithm efficiency and evaluation accuracy and can be used for evaluating the competitive advantages of logistics enterprises practically.
Synchronization of a Fractional-Order System with Unknown Parameters
Authors: Yang Xiao Ya
Published: December 2013

In this paper, synchronization of a fractional-order system with unknown parameters is studied. The chaotic attractor of the system is got by means of numerical simulation. Then based on the stability theory of fractional-order systems, suitable synchronization controllers and parameter identification rules for the unknown parameters are designed. Numerical simulations are used to demonstrate the effectiveness of the controllers.
Inverse Analysis of Pavement Thickness Based on Improved Particle Swarm Optimization
Authors: Fang Hong Yuan , Li Jian , Wang Yue Meng , Li Jia
Published: December 2013

Core-drilling is the traditional pavement thickness detection method. However, this way is low efficient and destructive. The Ground Penetrating Radar (GPR) is a continuous, high efficient, non-destructive pavement quality testing tool. The dielectric constant, thickness and other information of pavement structure layer are obtained by inverse analysis of GPR echo signal. In this paper, the improved Particle Swarm Optimization (IPSO) is developed to analyze the dielectric constant and thickness of the pavement structure. Compared with inverse analysis results of theoretical model, the inverse precision of IPSO is higher than that of PSO. In addition, the measured echo signal of GPR is analyzed by the IPSO. The errors between inverse results and the actual core-drilling measurements are less than 3%.