bluuebunny/crossref_metadata_2025 huggingface dataset:
Multi-Objective Model Research with Clean Energy Technologies in Low Carbon Power Planning
Authors: Zhong Jia Qing , Lu Zhi Gang , Yan Ke Ke
Published: July 2013

With the increasing development of clean energy technologies, the application of new energy and carbon capture technology would have a positive effect for CO2 emissions reduction. In this paper, planning of power system model including clean energy technology facing low carbon targets established, considering the carbon emission rights allocation and carbon trading. By studying coal-fired power plant planning model with wind power and carbon capture technology for the future planning period, establish the multi-objective model of minimum comprehensive cost and biggest carbon trading gains, considering constraint conditions of power generating capacity, wind power integrated capacity and carbon emissions reduction targets. Use the bacterial colony chemotaxis algorithm for optimization calculation of the power planning, to give a planning scheme that can meet the requirements of economic development trend and emission reducing requirements.
Feasibility Study on the Fault Line Selection Method Based on Overall Trend of Zero Sequence Current
Authors: Gao Li , Shu Hong Chun
Published: July 2013

Two results were obtained by analysing electromagnetism transition condition: firstly, when the initial phase angle of fault is larger, the characteristic of travelling wave is obvious, and the polarity of the first travelling wave head is consistent with the overall trend of zero sequence current in preliminary stage; secondly, when the initial phase angle of fault is smaller, the characteristic of travelling wave is not obvious, but the fault lines and perfect lines can be recognized through the direction of decaying direct current component in zero sequence current, and the direction of decaying direct current component is consistent with the overall trend of zero sequence current in preliminary stage. Research suggests that it is feasible to make the overall trend of zero sequence current in preliminary stage as characteristic for line selection.
The Topology Optimization of Ceramic-Resin Composite Structure under Thermal and Mechanical Loads
Authors: Li Q. , Zhu Ji Hong , Zhang Y.H. , Zhang W.H.
Published: July 2013

The ceramic-resin composite structure is generally used as the investment casting pattern. Due to the coefficient of thermal expansion (CTE) of resin is higher than that of ceramic, the thermal expansion of the resin pattern will lead to the crack of the ceramic shell during the burnout procedure. Simultaneously, the stiffness of the whole structure should be maintained at a certain level. In this paper, topology optimizations with respect to the cavity configuration of the resin pattern were developed to find out the optimal designs. A method involves the assist element was also introduced to control the rigid displacement of the ceramic shell during the heating procedure. Several optimal designs were presented and the comparison of the objectives respectively before and after the optimization investigated these designs could avoid the crack problem of the ceramic shell effectively.
Design of the Push-Pull Switch Power Supply Based on UC3525A
Authors: Tang Yu , Wu Gang
Published: July 2013

Switch power supply is a power supply of maintaining the stable output voltage by the use of modern electronic technology, controlling the time ratio (duty cycle) of on and off of switching transistors . Push-pull switch power supply is a form of switching power supply family, which is divided into an independent-excited push-pull switch power supply and self-excited push-pull switch power supply. This paper will put forward an design scheme of the independent-excited push-pull switch power supply based on the design requirements, and the driving integrated circuit selection according to the design scheme of the push-pull switch power, at the same time, the switching transistors and rectifier diode selection through the calculation. The number of turns on a switch transformer is calculated according to the input and output voltage. Considering the skin effect and the proximity effect, switch transformer winding method is selected and the power supply meets the requirements of design according to the saber2007 simulation and implementation.
Study of the Development Countermeasures for Hebei Province Photovoltaic Power Generation Enterprise Based on the Cost-Benefit Analysis
Authors: Dai Li Xin , Feng Pan
Published: July 2013

Uses cost-benefit analysis theory, combined with analytic hierarchy process, set up the cost benefit analysis index system for hebei province, Quantitative study the present situation and problems of photovoltaic power generation enterprises in hebei, then put forward the development countermeasures, which can make Hebei find suitable mode for their own photovoltaic development according to their characteristics.
Coupled Numerical Analysis of Flow-Temperature Field of Marine Generator
Authors: Yao Shou Guang , Liu Fei , Sheng Dong
Published: July 2013

In the present paper, the coupling numerical analysis of 3D flow field and temperature field inside a marine generator was analyzed based on coupling field analysis method. The overall flow-temperature field models consist of the marine generator stator and rotor and flow passage and the air gap. Numerical analysis of flow-temperature field of marine generator were simulated by the finite volume method. The velocity and pressure distribution of fluid inside flow passage and the temperature field distribution of stator and rotor of marine generator were obtained. The present results showed that, the coupling field analysis method of overall flow-temperature field with air gap, stator and rotor can reflect the complexity of the air flow more clearly, and the value of flow and temperature field were more reliable. The results also contribute theoretical basis on optimization of ventilation struture of generator.
Preventive Security-Constrained Optimal Power Flow with Constraints Limiting the Number of Beforehand Control Actions
Authors: Yang Yu De , Qi Le , Wei Wei
Published: July 2013

This paper proposes a new formulation of the preventive security-constrained optimal power flow (PSCOPF) which considers the constraints limiting the number of beforehand control actions and provides an approach to convert the proposed model to a nonlinear programming (NLP) which is more tractable by implementing an interior point algorithm (IPA). The proposed model and approach are illustrated on two standard test systems of IEEE-30 and IEEE-118. The results clearly indicate the system operation state can be changed from a given operation point to a PSCOPF satisfied operation point by exerting beforehand control actions in specified number. Furthermore, a minimum number of control actions can be obtained through this new formulation.
Fracture Behavior of Solidified TiC-TiB2 Ceramic Prepared by Combustion Synthesis in Ultra-High Gravity Field
Authors: Zhang Hao , Zhao Zhong Min , Zhang Long
Published: July 2013

A series of TiC-TiB2 ceramics were prepared by combustion synthesis in ultra-high gravity field, the microstructure, fracture behavior and toughening mechanism of the composite ceramic are discussed. The maximum fracture toughness of 13.1 MPa · m0.5 is achieved in TiC-66.7%TiB2, very close to the values (10~15 MPa · m0.5) of fiber-reinforced ceramic composite, contributed from the intensive coupled toughening mechanisms of crack deflection, frictionally crack-bridging and pull out by a large number of fine TiB2 platelets and ductile phase toughing caused by a few Cr-Al metallic phases.
Influence of Width of Widened Part in Road Engineering
Authors: Liu Jin Long , Wang Dong Lin
Published: July 2013

Based on the nonlinear finite element method, the basic characters of widened road engineering are studied. It is found that the maximal lateral displacement of embankment achieved in the widened part, especially happened at the intersection between original part and widened part, which increased with the width of widened part increased. The maximal vertical settlement of embankment increased with width of widened part increased. The width of widened part has little influence on the failure surface and stability of embankment.
Experimental Study on the Flexural Tensile Properties of Fiber Reinforced Light-Weight Aggregate Concrete
Authors: Niu Jian Gang , Bao Jian , Guo Yao Zhong
Published: July 2013

In order to investigate the effect of fiber reinforced light-weight aggregate concrete on flexural tension properties, five groups of steel fiber reinforced light-weight aggregate concrete (SFLWAC) specimens with different steel fiber volumes including 0.5%,1.0%,1.5%,2.0%,2.5% and another five groups of plastics-steel fiber reinforced light-weight aggregate concrete (PSFLWAC) specimens with different plastics-steel fiber volumes including 0.5%,0.7%,0.9%,1.1%,1.3% were tested. The test results show that fiber can greatly improve ductility, and there are good interfacial bonding properties between fiber and light-weight aggregate concrete. The test results also show that it is not obvious to the upgrade of the flexural strength of light-weight aggregate concrete of LC30 with plastics-steel fiber. But the addition of steel fiber can gradually improve the breaking strength owing to the increase of steel fiber volumes.
Permanent Deformation Process of Asphalt Concrete Pavement Based on Neural Network Modeling
Authors: Yin Fu Cheng , Zhou Guang Chun
Published: July 2013

This paper numerically simulates the deflection response of layers on the cross section of a medium-strength subgrade (MFC) flexible pavement under repeating load, by a radial basic function (RBF) neural network model. The RBF modeling focuses on the functional relationship between the local points in the top deflection curves of pavement layers. The input and output data of the RBF model utilizes the last deflection profiles on the tops of four layers in the test. The deflection curve of the pavement surface is set as the input data since its developing process can been watched and measured in the test. The deflection curves of the other three layers are as the output data, because their deflection process was invisible in the test. Thus, the deflection process of the pavement layers invisible in the test can be simulated by the trained RBF neural network model, which results in a further analysis based on the obtained simulation data.
In Situ Synthesis of TiC-TiB2 Reinforced Fe-Based Composite Coating by Laser Cladding
Authors: Zhou Fang , Yang Hui Yao , He Liang Hua
Published: July 2013

A Fe-based composite coating reinforced with in situ synthesized TiC-TiB2 particles was successfully fabricated on Q235A by laser cladding with mixture powder of TiO2, Al, B4C, C and Fe55 as precursors. The microstructure and mechanical properties of coating were investigated. The results show that the main phases of coating are TiB2, TiC, (Fe,Cr)7C3 and α-Fe. TiC particles show the shape of block, TiB2 particles exhibit the shape of strip. Compared with the Q235A, the microhardness of the composite coating improved drastically.
A Detection Method for Grinding Surface Residual Stresses on Nanostructured Ceramic Coatings
Authors: Liu Wei Xiang
Published: July 2013

The surface of the nanostructured ceramic coatings after grinding appears cracks, these cracks will reduce components intensity, and the cause of these cracks is grinding surface residual stress. The surface residual stress makes the distance change regularly with crystal orientation and stress changing on the cognate crystal plane of different crystal grain, therefore the X ray diffraction line offset, according to the size of the offseted position, the residual stress can be calculated by using σ = K • M.
Research Progress on Organic Additives in the Anodic Oxidation Process of Magnesium and its Alloys
Authors: Zhang Wei
Published: July 2013

Magnesium and its alloys have excellent physical and mechanical properties for a number of applications. Unfortunately, magnesium and its alloys are highly susceptible to corrosion, which greatly restricts their further application. Anodic oxidation treatment is an effective method to improve the corrosion resistance of magnesium and its alloys. In the anodic oxidation process, organic additives have significantly effects on the performance of the oxide film. This paper reviews the research progress on organic additives, in order to provide some references for the research of the electrolyte in the anodic oxidation process of magnesium and its alloys.
RETRACTED: Key Factors for Metal Organic Chemical Vapor Deposition of InGaN Films with High InN Molar Fraction
Authors: Liu Yu Huai , Wang Fang , Zhang Wei , Yang Shou Yi , Zhang Yuan Tao , Katayama Ryuji , Matsuoka Takashi
Published: July 2013

Retracted paper: InGaN with high InN molar fraction is a promising material for next generation optoelectronic devices and electronic devices such as solar cells, laser diodes for communications, and high mobility transistors and so on. However, the growth of InGaN with high InN molar fraction is still a tough challenge for metal organic chemical vapor deposition (MOCVD). This paper provides experimental clues for the key factors, including the influences of the growth temperature, the V/III ratio, the group III supply ratio, and the reactor pressure. In addition, the effectiveness of the pressurized MOCVD growth of the InGaN with high InN molar fraction will be testified.
Stable Reduced Graphene Oxide Suspension Modified by PAMAM
Authors: He Yong Qiang , Wu Fei , Wu Di , Zhang Yong Li , Gao Jian Ping , Yan Jing
Published: July 2013

Poly (amidoanime) (PAMAM) dendrimers contain numerous amino-terminal groups and are highly hydrophilic. These terminal groups make PAMAM molecules adsorbed onto graphene oxide (GO) nanosheets through electrostatic action with oxygen containing groups on graphene oxide nanosheets. The PAMAM molecules react with GO, and form stable aqueous suspension of modified reduced graphene oxide (RGO).
Oxidation Behavior of Stable-Oxidative-Poly-Si-Fe (SOPSF) Coagulant
Authors: Fu Ying , Wang Yan Zheng , Tan Juan , Li Hong Lan , Zhang Xin Yu
Published: July 2013

The oxidation behavior of a stable-oxidative-poly-Si-Fe (SOPSF) coagulant prepared by water glass and H2SO4 solution in treating a synthetic humic acid (HA) water was probed, in compraison with that of poly-Si-Fe (PSF) and Polyferric aluminum (PFA). The results revealed that the oxidization of SOPSF and PSF was very stable during the whole coagulation process, and played a role during the whole process including quiescent settling stage. While PFA almost gave no oxidization even at higher dose of 0.322 mmol.L-1. The oxidization rate of SOPSF was slower than that of SOPSF hydrolysis and destabilization process. Coagulation mechanism of SOPSF in removing dissolved organic matters (DOMs) may be a comprehensive results between the alternating interaction of oxidization/adsorption-destabilization/oxidization, bridging and sweeping.
The Researches on Preparation Techniques of Polysilicate Coagulants from Fly Ash
Authors: Zhou Yu Xing , Yu Yan Zhen , Fan Li Sha
Published: July 2013

Introducing the chinese current situation of fly-ash and its main composition and properties, review high-effective extraction methods of Si, Al and Fe from fly ash, and sum up preparation methods, conditions and water treatment results of the polysilicate flocculants with the extracts. At last, provide s some advices on how to get more extracts efficiently from fly ash and gain flocculants with better remarkable coagulant performance.
Spectroscopic Analysis of the Plasma in Laser Welding of AZ31 Magnesium Alloy
Authors: Gu Xiao Yan , Li Huan , Gao Ying
Published: July 2013

AZ31 magnesium alloy was welded by the YAG laser. The plasma of laser welding was studied by the spectra and the plasma temperature was also calculated. The relationship between the welding parameters and plasma temperature was studied. The paper shows that the cooling effect of the plasma using helium is significant. Laser plasma temperature decreases from the center to the periphery and the temperature in the center is higher than 9000K. The evaporation of Mg element concentrates in the center of the laser plasma.
Self-Assembly Films on a Screen-Printed Carbon Electrode
Authors: Sha Yu Fang , Lan Hong Jun , Zhang Yan , Liu Shou Shuo , Xie Jun
Published: July 2013

Using layer-by-layer (LBL) assembled method, multilayer films containing multiwall carbon nanotubes (MWNTs) and redox polymer were successfully fabricated on a screen-printed carbon electrode. X-ray photoelectron spectroscopy (XPS) and field-emission scanning electron microscopy (FE-SEM) were used to characterize the assembled multilayer films.
Study on the Vector Hysteron in Two-Dimensional Preisach-Stoner-Wohlfarth Model
Authors: Li Dan Dan , Liu Fu Gui , Li Yong Jian , Zhang Chang Geng
Published: July 2013

A vector hysteresis model referred to as the Preisach-Stoner-Wohlfarth (PSW) model has been recently presented. The crux of the model is the definition of a vector hysteron. In this paper, the effects of interaction field and applied field angle on the magnetization of the vector hysteron are studied in detail. The center of the hysteresis loops of hysteron is displaced because of the effect of interaction field. The energy loss for each hysteron is verified when the critical surface is crossed.
Modeling and Torsional Vibration Control Based on State Feedback for Electric Vehicle Powertrain
Authors: Zhong Zai Min , Wei Qiang
Published: July 2013

Electric vehicles will longitudinally vibrate obviously under acceleration and regenerative braking conditions (because of torsional vibration of the electric vehicle powertrain). This paper includes models of motor rotor, gear reducer and differential assembly, half shafts, tire and body and nonlinear powertrain dynamic model in consideration of gear backlash and frictional characteristics between tire and ground. Real car tests confirm that it is correct under acceleration conditions. Then a two mass-spring damper linear model which is simplified from the nonlinear powertrain dynamic model is proposed to design torsional vibration control algorithm based on state feedback. The simulation results show that the algorithm can actively eliminate torsional vibration.
Matching and Optimization for Powertrain System of Parallel Hybrid Electric Vehicle
Authors: Gao Jian Ping , Wei Yue Hui , Liu Zhen Nan , Qiao Hong Bing
Published: July 2013

The parameters matching of the hybrid powertrain system of the hybrid electric vehicle has a directly impact on the performance of the vehicle dynamic and the fuel economy. The preliminary match of the powertrain system base on analysis of Driving Cycle is done, then the software of AVL-Cruise and Matlab are integrated with Isight to optimize parameters of match, by using the Multi-Island GA and NLPQL to establish the combinatorial optimization algorithm. The results show that the fuel economy have been improved by 10.92% without sacrificing the dynamic performance and under the premise of ensuring the limits of the state of charge of battery.
Research of the Paver Starting Pressure
Authors: Nie Guang Hua , Cheng Peng Fei
Published: July 2013

Asphalt paver usually produces pressure shock in the starting process, makes the velocity fluctuations increase, have great influence on pavement quality. This paper carried out the analysis of the causes of asphalt paver started the process of starting pressure, through simulation software to analyze the influence of different starting time of starting pressure driving system in commonly paving speed, puts forward the measures to reduce the hydraulic impact.
Study on the Design of a Preload Adjustable Ultrasonic Vibration Extrusion System
Authors: Hu S.J. , Chen Y.R. , Hou J.B. , Shu Q.
Published: July 2013

A preload adjustable new ultrasonic vibration extrusion system was designed based on one-dimensional theory of elastic, moreover, the vibrator also has passed simulation analysis tested by Ansys. The influence of the flange structure to the resonance vibration mode of the vibrator was proposed. Finally its vibration performance was verified by impedance characteristic test and conformed to the processing requirement.
Numerical Simulation for Non-Smooth Contact Problem in Mechanical Systems
Authors: Gao Hai Tao , Han Ya Li , Hao Fei , Zhu Song Qing
Published: July 2013

Friction and contact phenomenon widely exist in mechanical systems. In order to tackle the frictional contact problem of mechanical systems, efficient numerical resolution methods and simulation methods are put forward. A mixed nonlinear complementary model describing frictional contact problem is built based on time-stepping method and complementarity theories. In order to solve the model effectively, the block matrix method and linearization method are used to change the mixed nonlinear complementary problem into a linear complementary problem which can be easily solved. At last, the validity of the numerical resolution methods are verified through a numerical example.
Structural Optimization Design of an Aircraft Metal-Composite Wing
Authors: Zhang Ya Hui , Zhu Ji Hong , Li Jun Shuo , Zhang Wei Hong
Published: July 2013

The problem of metal-composite wing structural optimization is discussed and a strategy is presented. Topology optimization method is applied to provide load transferring path of structure for concept design. Size, shape and other optimization method are used to provide detailed design for individual components. A three-phase optimization method is discussed for fiber reinforced composite laminate skin. Optimal parameters include ply angle, percentage, thickness, layer shape and sequence. The design of laminate for ease of manufacture is based on a set of manufacturing constraints. This paper deals with a total optimal design solution for aileron structure of an aircraft. The result satisfies all the requirements of strength and stability, and has obvious effect of weight loss.
CFD Simulation Research of Small Space with Large Temperature Difference
Authors: Zhang Yao , Liu Xiao Ya
Published: July 2013

When the beam is transmitting, the random fluctuation motion of temperature and pressure of the medium inside the path of transmission will cause the random fluctuation of the index of refraction of the transmission medium. It will form wave front distortion when the beam is transmitting, which is known as the laser transmission turbulence effect. This effect mainly behaves as light intensity flashing, beam drift, phase fluctuation and beam expanding. Using FLUENT software simulate the status of turbulent gas in the environment with small space and large temperature difference (650°C). Verifying the laser transmission turbulence effect can be inhibited by artificial control the distribution of the gas flow inside the flow field, which can optimal the design of the instrument.
Photodegradation of Aqueous Sodium Carbonate by KNiF3 Nanoparticles
Authors: Li Qian Nan , Yang Qiu Hua , Shen Hai Yun
Published: July 2013

The nanoKNiF3 with its particles size of 50-70 nm was prepared by solvent-thermal method and characterized by means of XRD, TEM and IR technologies. Photocatalysed reduction of aqueous Na2CO3 was carried out by using nanoKNiF3 powders. Formic acid, formaldehyde and methyl alcohol were identified as photoproducts, and were measured in spectrophotometry using Nash reagent. It shows that nanoKNiF3 has superior photocatalytic activity. Irradiation leads to the production of electrons in the conduction band of the KNiF3 nanoparticles. It is likely that the photoproduced electrons reduce CO32- initially to HCOO-, and then to HCHO and CH3OH.
Application of Rough Set Technology to Control Information System of CFBB
Authors: Gao Ming Ming , Hou Jie , Zeng De Liang , Lei Xiu Jian , Wu Yu Ping , Zhang Ming Sheng
Published: July 2013

Circulating fluidized bed boiler (CFBB) is a distributed parameter, nonlinear, time-varying and multivariate coupling system. Considering these, the core identity of Rough Set and the theory of self-organizing neural fuzzy inference system is applied to the control system of CFBB. The system is carried out toward the 300MW CFBB in Baima Sichuan province, and finally improve the performance of CFBB effectively.
Construction of Cruise UAV Simulation System Based on HLA
Authors: Xiao Bing , Liu Wei Guo , Sun Mao Yi
Published: July 2013

To meet the approval test need of certain UAV, make up the shortfall of some test difficult to implement, according to the actual demand of the shooting range, the function needs of cruise UAV simulation system is presented based on HLA, the simulation environment is introduced, such as circulating system and supporting conditions. The implementing program of software & hardware and operation process of system is also designed, which has been applied to the development of certain UAV simulation system. Practical application indicated that the design is reasonable, easy to operate, and can meet the need of UAV weapon system simulation.Keywords: HLA; cruise UAV; weapon system; simulation; construction
Design of Vehicle Navigation Terminal Interface Based on QT
Authors: Han Xiao Wei , Li Chang Tong , Liu Xiao Xia , Sun Yi Zhen
Published: July 2013

A designed scheme of Vehicle navigation terminal interface Based on QT is presented. According to the current high cost of vehicle navigation terminal is common problem. The paper focuses on the design process of the Linux OSQT GUI and electronic map. The establishment of the communication way of GPRS and the analysis of the GPS data is finished in this paper. The design options of software, combining with hardware, is effective to solve real-time and dynamic update problem of electronic map display, data update, path query functions , The design of the Vehicle navigation terminal provides an important prerequisite for realizing the urban traffic vehicle global optimization and dynamic navigation.
The Design of Dual-Mode Traffic Lights Control System Based on FPGA
Authors: Yu Yan Yan , Huang Ya Qun , Wang Lei , Tao Fu Shou
Published: July 2013

The traffic signal lights control system automatically controls the statues of the intersection traffic lights and dispatch the traffic vehicles normally that traffic scheduling is an important system and it is the most basic and most important tools in city traffic management. Traffic lights control system made by single chip microcomputer technology has a single working model, low reliability, slow speed, and it can't modify or upgrade online, which is difficult to adapt to changes at different times of the traffic flow. This design of the dual mode of traffic lights control system intelligently controls each intersection traffic lights on and off time in the different period, which will improve the scheduling efficiency of road intersections. The design is based on FPGA with a digital display of traffic lights control system, compile the program design and simulation in Quartus II development environment, and ultimately download to EP2C35F672C6 chip of Altera Company. By the DE2 experiments test platform, the system has stable performance, simple operation, easy to maintenance, high reliability, strong expansibility and good refactoring.
Design of a LEGO NXT Two-Wheeled Self-Balanced Robot Based on Inverted Pendulum Model
Authors: Chen Jie , Wang Hong
Published: July 2013

Two-wheeled self-balanced robot based on the inverted pendulum model belongs to the category of the wheeled robots and it shares many characters with inverted pendulum, which are non-linear, strong coupling, multi-variable and parameter uncertainty. Because there are many methods to keep this unstable robot self-balanced, this kind of robot has become an ideal platform to verify various kinds of control theories. In this paper, the two-wheeled robot is built on LEGO NXT set and depends on the sensors like gyro, angle transducer to keep upright. The mathematic and kinetic model of the robot is established according to the Lagrangian Dynamics and state-space equation of the whole system is presented. At last, a kind of state feedback control with the state observer is set up to make the system closed and stable.
Design and Simulation of Fuzzy-PID DC Governor System Based on Mine Hoist
Authors: Wu Yan Xiang , Zhang Chao Jun , Huo Hai Bo , Zhou Chao Qun
Published: July 2013

According to the requirement of smooth operation and accurate positioning for DC speed regulating system of mine hoist, a new speed control system that based on double closed-loop of Fuzzy-PID was designed. The best control scheme for mine hoist was also validated by simulation comparison with conventional PID control system in the MATLAB/Simulink. The result showed that the proposal was feasible and had practical value.
A Simple and Long-Range Displacement Measurement System
Authors: Hu Ye , Zhao Qian Hui , Chen Yong Ming , Wang Lei
Published: July 2013

This paper introduces a well-used long range displacement measurement system. The advantages of the system are that the sensor's measurement range can be extended by optical linear scale with a simple structure, and the distance between the measured object and the sensor can be automatically adjusted. The feasibility of the measurement system is tested by simulation experiments, and the accuracy performance is evaluated with respect to both repeatability error and linearity error. The experimental results show that the displacement measurement system reaches a level of accuracy which is sufficient for operational requirements.
Research on Fault Diagnosis Based on SVM
Authors: Li Wan Ling , Wang Zhen Sheng , Deng Da Quan , Tang Jun
Published: July 2013

In order to improve the fault diagnosis precision of electron system, a method based on wavelet packet transform and SVM was proposed. Fault diagnosis method based on SVM was researched on in this paper because of the complexity of electron system, difficulty of fault diagnosis method and special advantages of SVM. Wavelet packet transform is used to extract fault features from the signal of the circuit output voltage. The specific feature extraction method is introduced. Improved QPSO algorithm was proposed to improve the training speed and class precision of SVM. At last the method mentioned above was applied to a circuit. The result showed that this method was very good.
Study on Glass Furance Temperature Dual Control Based on Neural Networks Decoupling Control under WINCC
Authors: Yang Hao Ming , Zhang Lan Qing
Published: July 2013

Experiment control platform for the neural network decoupling control is constructed for the glass furnace taking heavy oil as fuel. By dual control, the improving Levenberg-Marquardt learning algorithm is discussed in order to improve the learning speed and to satisfy the real control. The neural network decoupling real control based on C-Script language and PLC S7-400 hard system under WINCC is realized with satisfying control results.
Study on the Corrosion Resistance of Ti(CN) Composites Coating
Authors: Li Dan Dan , Hao Jian Jun , Ma Yue Jin , Gao Liang , Zhao Jian Guo
Published: July 2013

Metal composites coating of Ti (CN) was made on the surface of Q235 steel substrate by reaction nitrogen are welding cladding process, and potted with low temperature epoxy, di-n-butyl phthalate and T31, the mass ratio was 10:2:1.5. To evaluate the corrosion resistance of Ti (CN) coating, the specimens were immersed in 5% sulfuric acid and 3.5% sodium chloride to calculate corrosion rate by potentiodynamic polarization measurement. The corrosion resistance of Ti (CN) is improved by 3.45 times in 5% sulfuric acid and 4.39 times in3.5% sodium chloride.
Research on Motion Control of AUV with Hybrid Actuators
Authors: Zhang Lei , Jiang Da Peng , Huang Shu Ling , Zhao Jin Xin
Published: July 2013

A switch function is presented to smooth control instructions and avoid system vibration during switch operating underwater vehicles with hybrid actuators. And a Modified S-plane Controller (MSC) is proposed by analyzing underwater vehicles dynamics and taking static force and coupling effects between the longitude velocity and other dimensions into account. Besides the advantages of S controller such as simple structure, MSC can solve the motion control of underwater vehicle at high speed which is difficult to control with S-plane controller. The stability of MSC is analyzed with Lyapunov function. Finally, MSC is applied to the motion control of an autonomous underwater vehicle controlled by rudders and thrusters. The feasibility of MSC is demonstrated by the results of velocity control, yaw control and depth control tests.
Preparation and Luminescent Properties of Na2Sr(MoO4)2: Eu3+, Gd3+ Red Phosphors
Authors: Ren Sha , Wa Gao
Published: July 2013

Red phosphors Eu3+- doped and Eu3+, Gd3+ co-doped Na2Sr (MoO4)2 were prepared by sol-gel method, the crystal structural, morphology and composition were characterized by powder X-ray diffraction, and scanning electron microscope. The results showed that the synthesized Na2Sr (MoO4)2: Eu3+, Gd3+ crystallites with stability tetragonal scheelite structure after sintering temperature at 800°C. The particle size distributions of phosphor sample are irregular and the granule size about 0.5μm.The excitation and emission spectra were investigated that the influence of Gd3+ ions on the luminescent properties of Eu3+ in Na2Sr (MoO4)2: Eu3+ system. Luminescent intensity of Eu3+ on the Na2Sr (MoO4)2: Eu3+, Gd3+ phosphor is much stronger than that of Eu3+ single doped. It is indicated that the sensitizing effect of Gd3+ for luminescence of Eu3+ obviously. The highest excitation intensity of Na2Sr (MoO4)2: Eu3+, Gd3+ at 466 nm, matching the output wavelengths of blue LED chips.
Particle Swarm Optimization Method for Optimal Prioritization of Pavement Sections for Maintenance and Rehabilitation Activities
Authors: Chang Jia Ruey
Published: July 2013

Optimal prioritization of maintenance and rehabilitation (M&R) activities for pavement sections can enable significant time and cost-savings. In this study, we used the particle swarm optimization (PSO) method to achieve optimal prioritization of 135 pavement sections based on eight pavement condition parameters. The parameters included standard deviation (SD) for smoothness, rutting, deflections, cracking, pothole, bleeding, patching, and shoving. SD for smoothness, rutting, and deflections were inspected using instruments, while cracking, pothole, bleeding, patching, and shoving were surveyed visually. The PSO method was used to quickly calculate the synthetic pavement condition for each pavement section and then obtain the optimal prioritization of pavement sections. With this approach, pavement engineers are able to efficiently perform appropriate and timely M&R activities for pavement sections, according to their priority. This study provides an alternative solution to current approaches for prioritization of pavement sections.
Compressive and Tensile Strength of Artificially Cemented Dune Sand
Authors: Santos Olavo Francisco , da Silva Costa João Paulo , Gomes Lopes Francisco Mateus
Published: July 2013

Artificial cementation is a technique commonly used to improve the mechanical properties of soils for use in geotechnical engineering works, because it often provides economic and environmental advantages. In order to study the factors that influence the behavior of cemented dune sand from Natal, series of unconfined compression and splitting tension tests were performed. These tests showed that increasing the cement content and decreasing void ratio are effective ways to improve compressive strength. The same applies to tensile splitting strength. It was also established that both unconfined compressive and splitting tensile strengths can be related to a quotient between volume of void-space and cement content.
Study on 775 Nanovolt Noise Measurement Method for a Low Noise Voltage Reference
Authors: Zhao Fei Fei
Published: July 2013

Frequently, voltage reference stability and noise define measurement limits in instrumentation systems. In particular, reference noise often sets stable resolution limits. Reference voltages have decreased with the continuing drop in system power supply voltages, making reference noise increasingly important. The compressed signal processing range mandates a commensurate reduction in reference noise to maintain resolution. Noise ultimately translates into quantization uncertainty in A to D converters, introducing jitter in applications such as scales, inertial navigation systems, infrared thermography, DVMs and medical imaging apparatus.
Research and Application for Two-Cylinder Electro-Hydraulic Servo Synchronous Control Technology
Authors: Chen Guo Jin , Ni Jing , Liu Ting Ting , Xu Ming , Chen Hui Peng
Published: July 2013

The two-cylinder drive is one of many commonly used mechanical drive forms. Its synchronous control accuracy determines the movement accuracy of the working machinery. The paper established the mathematical model for the two-cylinder electro-hydraulic servo synchronous drive system, and revealed that the two-cylinder horizontal electro-hydraulic synchronous drive system has the cascade form of the linear system with the nonlinear system. Taking the band sawing machine and the broaching machine as the application object, the paper analyzed their compositions and synchronization CNC systems. Aiming at the dual-cylinder drive form for the broaching machine, the IPSO-PID synchronous controller of the two-cylinder system was designed. Through the digital simulation and actual testing, the results show that the IPSO-PID synchronous controller is faster in the tracking response speed and better in the synchronization performance than the conventional PID synchronization controller.
Supervising Cognitive Tele-Rehabilitation with a Virtual Therapist
Authors: Fok Sai Cheong , Tan Fock Lai , Lau Michael W.S.
Published: July 2013

This paper presents the development of a virtual therapist to guide the patient through the cognitive tele-rehabilitation exercise. The intelligent assistant uses fuzzy logic to regulate the visual and audio cues based on the patients behaviors being monitored. The framework and the structure of the virtual therapist are discussed in this paper. A preliminary clinical trial indicates that the virtual therapist could complement the electronic exercises.
Research on Behavioral Decision Method of Simulation Entity Based on Cognitive Model
Authors: Yang Hai Tao , Li Peng Wei , Zhao Hong Li
Published: July 2013

This paper studies how to use the cognitive model to model the behavioral decision-making for the tactical level simulation. The decision making process includes initial behavior planning and behavior modification. This method has the advantages of accuracy and real-time, this makes the behaviors of the simulation entity more realistic and improves the credibility of simulation.
Research on CGF Decision-Making Algorithm Based on Fuzzy Petri Nets
Authors: Chen Jian , Liu Zhi Guo , Ma Long , Wang Feng
Published: July 2013

CGF architecture model reflects the physical behavior of operational entity Agent and the whole system. As to the CGF system, it is necessary to build not only the physical behavior model, but also intelligent decision model to reflect the subjective awareness behavior of the system. Taking offensive and defensive confrontation CGF decision-making system as the background, we analyze the relevant factors which could affect CGF decision, and build a kind of fuzzy petri net to model the CGF decision-making system. At last, a relevant inference algorithm is proposed.
A New Time Delay Estimation for Acoustic Elastography
Authors: Wang Jiao Na , Wang Chong Zhi , Zeng Cheng Zhi , Yang Pei De , Zheng Hai Rong
Published: July 2013

A new signal processing algorithm based on a Wavelet Transform is proposed for time delay estimation in acoustic elastography. The proposed estimator using correlation coefficient as a measure of the similarity of the two signal waveforms are reasonable. And we select the wavelet function most similar to the simulated ultrasonic signal as the mother wavelet. The practical simulation shows that the algorithm offers higher noise suppression capability and is able to implement ultrasonic signal time delay estimation.
Magnetic Nanoparticles Arrays for Quantum Calculations
Authors: Nefedev Konstantin , Kapitan Vitalii , Shevchenko Yuriy
Published: July 2013

In frames of a quantum computer implementation, the ordered array of magnetic dipoles nanoparticles is considered. The phase space calculated for system of dipoles, which interact through long-range magnetostatic field. The behavior of nanoarchitectures in an external magnetic field is studied. The degeneracy of the equilibrium magnetic states depending on the value of an external magnetic field and the spin excess of configurations are determined. The presence of degeneration is a classical analog of quantum superposition, and distribution of probability of magnetic state is a classical representation of such quantum phenomena as entanglement.
The Remote Communication Control of In Situ Laser Raman Spectroscopy System Based on Seafloor Observation Network
Authors: Qi Fu Jun , Xiong Xing Zhi , Guo Jin Jia
Published: July 2013

As a powerful tool for seafloor research, the building of seafloor observation network has great value for ocean research and territory security. The seafloor observation network is consist of three parts: the shore station monitoring center, the main network system and the laser Raman spectroscopy system. As one of the sensor nodes, Raman spectroscopy system can detect multiple anions in water non-destructively. In this paper, a remote communication control subsystem for laser Raman spectroscopy system via seafloor observation network was designed. Based on the TCP/IP protocol, a suit of communication control software was developed. Communication control experiments were performed and the experiments results showed that the software was qualified.
Analysis Methods of Images Surface of Fast Tempered Alloys
Authors: Frolov A.M. , Dolzhikov S.V. , Kraynova G.S.
Published: July 2013

This work proposed a method for processing of microscopic images of complex structural non-crystalline objects. The declared approach assumes procedure of system parametrization of images without procedure of allocation of components. It is based on concept of fields of anisotropy inhomogeneities on microscopic images. On an example of images of a microrelief spinning tapes effectiveness of the given procedure for reception of quantitative characteristics about objects is shown. The entered factor of anisotropy has allowed to allocate multiscale character of morfo-inhomogeneities interfaces of tapes and has allowed to describe process of spining depending on technological modes of reception. It is shown, that the further progress of the given approach can be carried out by methods of informo-dynamics.
The Application of High Precision Three-Dimension Thermal Deformation Measurement on the Temperature Property Design of Microwave Equalizer
Authors: Yang Ming Shan , Meng Xiao Chao , Yan Jia Jia , Li Wei , Qiu Zhi Yong
Published: July 2013

Using the high precision three-dimension thermal deformation measurement equipment, the data of differential linear expansion coefficient of several materials used in microwave equalizer were got, and the thermal deformation of resonant cavity and the probe of typical structural were measured exactly. Therefore, the internal relationship between the thermal deformation and the shift of equalized property can be concluded. According to the precise data of the thermal deformation measured, the methods, such as materials compensation and structural compensation, were used to guarantee the properties of equalizer at different working temperatures.
Prospect of Identification of Different Corrosion Product by Near-IR Photography
Authors: Ramdan Raden Dadan , Suwardhi Deni , Suratman Rochim
Published: July 2013

The present work is a preliminary work on the development of NIR camera photograph as alternative tool for corrosion product identification. Corrosion products were taken from two different carbon steel tubes side, one is from thinning tube side, the other is from normal tube side. From optical microscope data, it was observed that the thinning tube side surface has elongated microstructure while the other has normal microstructure. It was also observed that more stable oxide in the form of hematite formed on the thinning tube side, while the other side has siderite and magnetite as the corrosion product. From NIR camera photograph on the scale of both tubes side, it was obtained significant differences in the digital image number. It is expected that after further comprehensive collecting digital image number data on the various corrosion product as well as thickness layer, NIR camera photograph can be used as an alternative method for corrosion product identification.
Research of Spindle Error Separation Mixed Method
Authors: Wang Peng Qing , Wang Hong Jun , Wan Peng , Gao He Peng
Published: July 2013

This paper introduces a spindle error separation technique called orthogonal mixed method. The problem of harmonic suppression is solved by the orthogonal mixed method, which exists in the process of measurement based on three point method.The measuring system consisting of a displacement sensor and a angle sensor is developed for spindle error and roundness measurement. Two sensors, which are placed in the same plane perpendicular to the spindle axis, are mutual into 900. The principle of the critical angle method of total reflection are used by two sensors to separate rotation error from spindle error. Above all, the measured results show that this method indeed solve the problem of harmonic suppression, make the results of measurement more accurate.
Research on Substation Reliability Based on the Minimum Cut Set Algorithm
Authors: Wang Kai , Ping Xu , Yan Liu , Geng Li
Published: July 2013

Substation is the key component of regional power supply. The assessment of substation reliability index should be done before the assessment of regional power station reliability. Taking regional power station for example, this paper uses algorithm of minimum cutest which is based on spaces of electrical parts, gives analysis to the reliability of power station main electrical wiring. This method, being verified to provide an effective reliability assessment for power station main electrical wiring, lays a foundation for assessment of regional power station reliability.
An Adaptive Interacting Multiple Model for Vehicle Target Tracking Method
Authors: Du Jin Song , Bi Xin
Published: July 2013

In the field of traffic safety vehicle target tracking prediction as the background, this paper proposes an adaptive interacting multiple model tracking algorithm. According to the field of transportation vehicle movement state characteristics, based on the uniform (CV) and uniformly accelerated motion (CA) model, based on new information structure model of motion of the likelihood function, online adaptive adjustment model of the noise variance and the Markov matrix, realization of maneuvering target movement model and model set adaptation, not only improved IMM algorithm for tracking accuracy, and enhances the real-time performance of system, the simulation results show that, the algorithm for tracking precision compared to the traditional IMM method has bigger improvement.