bluuebunny/crossref_metadata_2025 huggingface dataset:
2D Numerical Simulation of Termal Discharge in Coastal Area
Authors: Xu Ting
Published: July 2014

A two-dimensional depth-average temperature transport model was used to simulate the temperature diffusion and dissipation. It is done to analyze the temperature distribution under different cases. The results indicated that the general temperature rise (refer to present, the same as following) of the intakes is below 0.3°C in Case 2\3\4\5, and the max is 0.78°C in Case 1. According to the survey temperature at the project intake at present, it is 29.7°C, then the total temperature after the project is below 30.5°C. So the project is feasible for the water temperature.
Synthesis for an Amide-Ester Type Polycarboxylate Superplasticizer and its Application in Concrete
Authors: Sun Chong , Zheng Guang Jun , Bi Yao , Zhou Hui
Published: July 2014

A new type of amide-modified polycarboxylate superplasticizer was synthesized by a two-step method: Firstly, a mixture of amidated and esterified products reacted by maleic anhydride and 2-aminoethanol was modified through Mannich reaction. Then, the modified product was reacted with Prenyl alcohol polyethenoxy ether (TPEG), acrylic acid and other monomers to obtain an amide-structured polycarboxylate superplasticizer. The molecular weight and molecular weight distribution were measured by Gel permeation chromatography (GPC). Lastly, the optimum AA to modified product ratio, initiator dosage and reaction time were determined by cement mortar test. The concrete application performance showed that the synthesized superplasticizer could improve the fluidity of the concrete and maintain the slump loss as well. The introduction of modified PCE has no harm for the concrete strength.
Study on Settlement Process of Dredger under Current Force
Authors: Xu Ting , Xiao Zhong , Sun Lian Cheng
Published: July 2014

A 3D-dimensional numerical simulation on the process of dredger under current force was carried out by using the finite element software ABAQUS, which is one of the most advanced nonlinear finite element softwares in the world.The interaction between the dredger and the seabed soil foundation is complex and the calculation considering the elastic-plastic property of soil belongs to strong nonlinear problem.The results indicated that the settlement of the dredger increase largely in the first times and the settlement tended to be stable with the times increasing. The stable value is 0.069 meters.
The Effect of Enterprise Business Process Reengineering Fuzzy Comprehensive Evaluation
Authors: Ling Song , Ye Chuan Yu
Published: July 2014

This paper analyzed the mechanism of the Enterprise business process reengineering (BPR) to study the performance of the development process, Determined the importance of process cost, process, quality, customer satisfaction to process performance, and on this basis, further established the effect factors layer of process reengineering evaluation index system and build the enterprise develop business process reengineering effect evaluation system. Finally, this article determine the weight of each evaluation index based on the attribute hierarchical model and empirical analyses by using fuzzy comprehensive evaluation method.
A New Highway Safety Model Based on Cellular Automata
Authors: Li Li Xing
Published: July 2014

With the growth of the total mileage of highway. There is great importance in studying highway safety. At the present time, there are little research on traffic safety with the consideration of the Keep-Right-Except-To-Pass Rule, which requires drivers to drive in the right-most lane unless they are passing another vehicle. Based on Cellular Automata, this paper constructs a new model of highway safety with the consideration of the particular Rule. To evaluate the safety of the road, the model proposes a new index based on energy conservation law. After the simulation, the result shows the best traffic density to balance the safety and traffic flux is 20.1133veh/km.
A Model for Seat Allocation of Railway Passenger Transport Based on OD’s Priority
Authors: Zhu Ying Ting , Wang Fu Zhang , Shan Xing Hua , Lv Xiao Yan
Published: July 2014

Based on the seat inventory control method of revenue management in airline, the author researches the optimization strategy on the seat inventory control in railway passenger transport. The author proposes one optimization model for seats allocation, which is to allocate seats by calculating the value to determine the order of getting seats for each OD under the analysis of the interaction among all trains running on the same rail lines and those trains’ demands intensity. The experiment results show that this new model can be used to allocate seats for the train with multiple stations rapidly and appropriately. In comparison with the method without considering the value of each OD, the model based on OD’s value can get better results.
A Kind of MSD Performance Compensation Method Based on the Strategy of Sliding
Authors: Zhu Dong Xu , Fu Gang , He Qian
Published: July 2014

The signal noise ratio (SNR) of telemetry signals is low in the environment of reentry telemetry, MSD(Multi-Symbol Detection) technology can effectively improve PCM/FM telemetry signal demodulation performance. In view of the problem that maximum likelihood value is misjudged leaded by the noise in the process of reentry and doppler causing serious distortion of signal phase. A performance compensation method of MSD based on sliding strategy is researched: A MSD operation with N-1 element overlap before each MSD operation, where the each symbol sliding strategy sliding the length of 1 symbol. The simulation and test results verify the effectiveness of the improved algorithm.
Design and Implementation of General High-Speed Data Storage System
Authors: Fu Gang , Geng Wen Jian , Li Ren Long
Published: July 2014

According to the trend of the development of the computer system bus more, designs the general high-speed data storage system based on computer platform structure.Put forward the "one-way chain" cache structure, to avoid the computer operating system of real-time data transmission, the influence of the multithreaded mode data transmission and storage of parallel processing.According to the basic principle of data storage in a computer system, put forward the standard file operations function replace special instruction set, the method of implementing the SCSI disk array storage at a high speed.Test results show that the data storage system based on computer platform with more generalization method to achieve the high speed of data storage.
Preparation and Dielectric Property of Ag/PVDF Composite Film
Authors: Wang Ya Jun , Zhai Jian Wen , Wang Fang Fang , Feng Chang Gen
Published: July 2014

Conductive particle fillers could improve the dielectric properties of the polymer matrix. By solvent casting method, different volume fraction of nanosilver particles were added into the PVDF film to prepare Ag/PVDF composite film so as to increase the dielectric properties of the materials. SEM was used to analyze the microstructure of the films. SEM images show that nanoAg filler particles were uniformly distributed throughout the whole matrix of the composite films. Dielectric property tests show that with the increase of nanoAg content, the dielectric constants of the composites increase first and decrease later while the dielectric losses decrease first and increase later. In the case of the optimal 17vol% Ag content, the dielectric constant of the composite film is the highest (14.5 at 100 Hz) with lower dielectric loss, and the energy storage density is relatively high (0.340 J·cm−3).
Probabilistic Model Checking by Model Equivalent Reduction and Abstraction
Authors: Bai Zhen Long , Xu Lin Ying , Yu Zhan Shui
Published: July 2014

In probabilistic model checking, use discrete time Markov chain (DTMCs) to represent the model and use a branch of the temporal logic called probabilistic computation tree(PCTL) to represent the properties of the model. In this paper, we presents several counterexample generation algorithms for DTMCs violating a PCTL formula, presented as follows: first, according to the transitive closure to reduce the model size against the specific properties of the model, second, using the minimal connected components to generate the equivalent acyclic graph, third, we use the algorithm of the operational research to obtain a shortest path between two points. Experimental results show that our algorithm greatly simplifies the model size and generate more reasonable counterexamples with least states and paths.
Computing Volumes Surrounded by a Quadric Surface and a Plane with MATLAB
Authors: Yin Qing Li
Published: July 2014

We describe how to compute volumes of solids surrounded by a quadric surface and a plane. First, we use coordinate transformations to change an equation of a quadric surface into a standard equation, then apply integration techniques to find formulae of computing volumes. A MATLAB procedure is programmed that can be used to evaluate volumes bounded by a quadric surface and a plane.
A New Defogging Algorithm Based on Atmospheric Degradation Physical Model
Authors: Li Xiao Guang
Published: July 2014

Aiming at the degeneration phenomenon of images taken in mist, according to features of the drop quality image, this paper proposed a novel defogging algorithm based on improved atmospheric scattering model. The problem of fog-degraded images defogging restoration is transformed into the problem of optimization estimation for original un-degraded image by maximizing the global contrast object function, in this way, the proposed algorithm can restore the object image as completely as possible in probability sense. The experimental results show that the method can effectively improve the fog degeneration phenomenon and improve image clarity, significantly improving drop quality image visual effect.
Interpolation Algorithm Application Using Neural Networks for Flywheel Energy Storage System
Authors: Wan Shao Song , Cao Jian , Zhu Qun Song , Yan Cong
Published: July 2014

This paper presented the key techniques development of motor/generator (M/G) for the FES system in recent years, and summarized the latest developments of three machines such as: induction machine (IM), reluctance machine (RM) and permanent magnet machine (PMM) including traditional structure PMM and Halbach structure PMM, which now widely used in the FES system. The characteristics of three machines had been compared and analyzed, which provides guidance for the FES field researchers to choose appropriate M/G.Then the comparison of spectra of the sequences respectively interpolated by FDIA and commonly used interpolation algorithm is conducted, which affirms the superiority of FDIA. Finally, an effective method of achieving best decimation of the sequence interpolated by FDIA is provided. All these lay primary theory foundation for the application of Zadoff-Chu sequence to HF channel sounding.
Temporal and Spatial Characterizations of Zn Ions in Plasma by Pulsed-Laser Ablation of Zinc Metal in Vacuum Condition
Authors: Jiao Yang
Published: July 2014

Plasma emission spectroscopy was used to study the evolution behavior of the Zn ions in the plasma produced by nanosecond pulsed laser beam irradiating on pure zinc metal targets. The measurements indicated that the hotter and denser region in the plasma was located at about 0.75mm from target surface and presented at delay time 250 ns with respect to the laser pulse. Compared to Zn atoms in the plasma expansion, the results reveal that Zn ions are characterized by weaker intensity in spatial profiles and shorter lifetime in temporal evolution, while, much higher brightness of Zn ions can been observed in early-state plasma emission.
A Modified Harmony Search Algorithm for Numerical Optimization Problems
Authors: Xia Hong Gang , Wang Qing Zhou
Published: July 2014

This paper presents a modified harmony search (MHS) algorithm for solving numerical optimization problems. MHS employs a novel self-learning strategy for generating new solution vectors that enhances accuracy and convergence rate of harmony search (HS) algorithm. In the proposed MHS algorithm, the harmony memory consideration rate (HMCR) is dynamically adapted to the changing of objective function value in the current harmony memory. The other two key parameters PAR and bw adjust dynamically with generation number. Based on a large number of experiments, MHS has demonstrated stronger convergence and stability than original harmony search (HS) algorithm and its two improved algorithms (IHS and GHS).
Method Based on the Minimum Deviation for Multi-Attribute Decision-Making and its Application
Authors: Zhou Hong An
Published: July 2014

The multi-attribute decision making (MADM) problem is studied, in which the information about attribute weights is unknown and the decision maker (DM) has avail preference information on alternatives. Firstly, a quadratic programming model based on the minimum deviation between the objective decision-making information and the subjective preference information on alternatives is established. Secondly, the existence of solution to the model is proved and the calculated formula of the attribute weights are given, thus the overall values of the alternatives are gained by using the additive weighting method. Based on these values, the selecting the best on alternatives is processed. Finally, a practical example is illustrated to show the feasibility and availability of the developed method.
Orthogonal Semi-Supervised Marginal Fisher Analysis
Authors: Liang Xing Zhu , Lin Yu E
Published: July 2014

In recent years, a variety of manifold-based learning dimensionality reduction techniques have been proposed, which attempt to project the original data into a lower dimensional feature space by preserving the local neighborhood structure. Among them, marginal fisher analysis (MFA) achieved high performance for face recognition. However, the optimal basis vectors obtained by MFA are non-orthogonal and MFA usually deteriorates when labeled information is insufficient. In order to resolve these problems, we present a new method called orthogonal semi-supervised marginal fisher analysis (OSMFA), which not only extracts all the orthogonal discriminant vectors but also preserves the global structure of labeled and unlabeled samples to learn a better subspace for classification. Experimental results on ORL database demonstrate the effectiveness of the proposed algorithm.
Research of License Plate Recognition under Complex Environment
Authors: Gao Feng , Dai Zhong Jian , Zhou Kun , Dai Ya Ping
Published: July 2014

In order to improve the license plate recognition accuracy under complex environment, a new license location algorithm combining vertical edge detection, color information of the license plate and mathematical morphology is presented in this paper. For balance of computing load and recognition accuracy, a “200-d” character feature rule is designed, and the “200-d” feature is used as the input of BP neural network to recognize the characters. Based on the above-mentioned methods, a license plate recognition system is set up, which can locate and recognize the license plate effectively, even when the resolution of pictures and the position of vehicles in the pictures are not fixed. Experimental results indicate that the recognition rate of the algorithm reaches 90.5%.
Application of Multipurpose Decision Making Problem with AHP and Rectilinear Norm in Old Town Renewal Proposals
Authors: Zhang Bing Jiang
Published: July 2014

In the process of urbanization, old town renewal is an unavoidable problem. The significance of old town renewal focuses on meliorating residents’ physical environment conditions, humane and social environment, and improving urban operation efficiency. Such problem affects not only the development of a certain district, but the benefits of future generations. For city managers, it is difficult to bring up a rational and highly efficient proposal such that related interest bodies would accept, and thus democracy science decision is required. This essay employs AHP to solve the problem of old town renewal proposal assessment, and brings forward the decision-making of multi-objective programming problem based on rectilinear norm allocation problem. Since there is no such paper that systematically and efficiently assess old town renewal proposal by using allocation problem, this paper tries to use this method to “fill out this blank”.
Relations among E-Derivative, Derivative, Algebraic Degree, Correlation Immunity and Annihilators for H Boolean Functions
Authors: Huang Jing Lian , Wang Zhuo , Li Juan
Published: July 2014

Using the derivative of the Boolean function and the e-derivative defined by ourselves as research tools, going deep into the internal structure of Boolean functions, we study relationship of algebraic degree, correlation immunity and annihilators for H Boolean functions with a specific Hamming weight. We obtain the algebraic degree of the e-derivative which is a component of H Boolean functions decide the algebraic degree of H Boolean functions. Besides, we describe the characteristics of the algebraic degree of e-derivative for the correlation immune H Boolean functions. We also check the e-derivative of H Boolean functions can put annihilators, correlation immunity and algebraic degree of H Boolean functions together. Meanwhile, we also deduce a formula method to solving annihilators of H Boolean functions. Such researches are important in cryptographic primitive designs, and have significance and role in the theory and application range of cryptosystems.
The Research of Financial Risk Warning Model about Real Estate Enterprises in China
Authors: Tian Xin Ran , Jiang Hao Dong , Liu Jun Li
Published: July 2014

With the establishment of large-scale real estate enterprises, the competition is increasing among real estate enterprises, which requires real estate companies to enhance crisis prevention awareness. In the paper a combination of qualitative and quantitative method is used aiming at certain risks that real estate enterprises are facing with. The article introduces the capacity of external financing in time, Eva, cash flow, board size, the scale of supervisor board and other new indicators to establish a new system of early warning indicators. The article provides empirical study from the perspective of early warning system of real estate generation enterprise using comprehensive evaluation model. It is more accurate to predict financial risk for real estate enterprises based on the qualitative method with quantitative method.
Feature-Based Real-Time Visual SLAM Using Kinect
Authors: Song Yan , He Bo
Published: July 2014

In this paper, a novel feature-based real-time visual Simultaneous localization and mapping (SLAM) system is proposed. This system generates colored 3-D reconstruction models and 3-D estimated trajectory using a Kinect style camera. Microsoft Kinect, a low priced 3-D camera, is the only sensor we use in our experiment. Kinect style sensors give RGB-D (red-green-blue depth) data which contains 2D image and per-pixel depth information. ORB (Oriented FAST and Rotated BRIEF) is the algorithm used to extract image features for speed up the whole system. Our system can be used to generate 3-D detailed reconstruction models. Furthermore, an estimated 3D trajectory of the sensor is given in this paper. The results of the experiments demonstrate that our system performs robustly and effectively in both getting detailed 3D models and mapping camera trajectory.
Research of the First Kind of Padé Weight Function Neural Networks
Authors: Zhang Dai Yuan , Xu Yan
Published: July 2014

Traditional algorithms of training neural networks have some weakness. A new approach using weight function neural networks was proposed in recent years, which overcomes the shortcomings of traditional neural networks. This paper takes Padé approximation as weight functions and we get the method of how to find the Padé weight functions with given samples. Then complexity is also analysed in detailed in this paper. Finally simulation experiments are done to verify the results.
Numerical Simulation of Cook-Off for Passive RDX
Authors: Chen Chun , Li Wei Bing , Liu Jun
Published: July 2014

For passive RDX, fluent software was applied to simulate the cook-off for explosive of different charge density at heating rates of 1, 5, 10k/min to improve thermal safety in the ammunition storage, transport and battle. The results show that the heating rate has great effect on ignition time and position for passive RDX. Charge density also has great influence on ignition time but no influence on ignition position. The ignition time decreases and ignition position moves from the center to the two ends of the cylinder edge with the increase of the heating rate. The ignition time increases with the increase of charge density under the same condition. Therefore, increasing the charge density can effectively improve the thermal safety of ammunition.
Traffic Flow Prediction with few Data Using Fuzzy Neural Network Method
Authors: Zhou Wei , Wang Xiao Xue
Published: July 2014

Many machine learning approaches in the field of Artificial Intelligence (AI) have been developed. Most of them rely on using large data sets to build up knowledge. However, the traffic system usually has only few data. In this article, the so-called adaptive neural fuzzy inference systems (ANFIS) is employed to predict the traffic time-series with few data, including flow, speed and occupancy
Interpolation Algorithm Application of Zadoff-Chu Sequence Using Neural Networks
Authors: Cao Jian , Li Yan Bin , Yan Cong
Published: July 2014

In order to adapt the spectrum property of Zadoff-Chu sequence to the requirement of HF channel sounding transmitter-receiver, the Formula Direct Interpolation Algorithm (FDIA) is put forward by which the amplitude frequency characteristic of Zadoff-Chu sequence can be enhanced. Then the comparison of spectra of the sequences respectively interpolated by FDIA and commonly used interpolation algorithm is conducted, which affirms the superiority of FDIA. Finally, an effective method of achieving best decimation of the sequence interpolated by FDIA is provided. All these lay primary theory foundation for the application of Zadoff-Chu sequence to HF channel sounding.
Comparison on Turnovers of Agricultural Products Futures Based on Hilbert-Huang Transform
Authors: Han Qing Bin , Shi Hai Li
Published: July 2014

In order to distinguish the different patterns and evolving trends on turnovers of agricultural products futures between Zhengzhou Commodity Exchange (Z-CE) and Dalian Commodity Exchange (D-CE), a novel time-frequency analysis approach, i.e. Hilbert-Huang transform (HHT), is investigated in this paper. Firstly, Hilbert-Huang transform is briefly introduced. Secondly, two different non-stationary signals of turnover of agricultural products futures from 2009 to 2013 coming from Z-CE and D-CE are described in Empirical Mode Decomposition (EMD). With these results, the two signals are distinctly different from each other. It is proved that the technique of HHT is effective for the purpose of distinction of turnover of agricultural products futures in commodity exchanges.
From Epanechnikov Mixture Model to Rule-Centered Fuzzy Model and its Application to Stock Index Prediction
Authors: Zhang Qin Li
Published: July 2014

In this paper, the mathematical equivalence between the conditional mean of a Epanechnikov mixture model (EMM) and the defuzzified output of a rule-centered generalized fuzzy model (RCGFM) is derived theoretically. Our results provide a new perspective for fuzzy systems, i.e., interpreting them from a probabilistic viewpoint. Thus, instead of directly estimating the parameters of the fuzzy rules in a rule-centered generalized fuzzy model, we can first estimate the parameters of the corresponding EMM using any popular density estimation algorithm like the expectation maximization (EM) algorithm. Our experimental results clearly indicate that a rule-centered generalized fuzzy model trained in such a new way has higher approximation accuracy and generalization ability than other models.
Based on the Modeling and Simulation Analysis of the Spray Pump of Soildworks
Authors: Jiang Dan Dan , Zhou Zhe Bo , Xu Jian , Chen Liang , Li Ming
Published: July 2014

For the research of the mine large displacement spray pump in structure characteristics, each part of the spray pump should make use of Solidworks 3 d modeling, then assembled to be assembly at the same time. During the process of assemble, the assembly must be checked for interference. And simulate the spray pump motion, operation parameters are obtained according to the basic parameters and theoretical analysis. It’s of great significance to enhance the efficiency of the practical production in coal mine by bearing the main stress, testing and optimizing the performance of the crankshaft.
Research of Laser Induced Fluorescence Detection Techniques Based on Microfluidic Devices
Authors: Cheng Yong Qiang , Guo Cui Lian , Zhao Bin , Yang Li
Published: July 2014

Laser induced fluorescence (LIF) detection technique is one of the most sensitive detection method in micro total analytical systems (μTAS) as its good monochromaticity, strong collimation and high optical density. It is widely used in biochemical analysis systems and the detection limit could reach 10-9-10-12mol/L. Due to the important role in μTAS, different optical structure arrangements of LIF detection techniques were continuously developed. We reviewed the recent progress of the optical structure arrangement and the applications of the LIF detection techniques.
The Wind and Light Power Supply System Controller in the Mobile Base Stations
Authors: Ma Hong
Published: July 2014

With the rapid development of economy, the consumption of energy increasing year by year, the conventional energy is facing increasingly draining.The wind and light power supply system controller in the mobile base stations is a kind of power supply management system,used the wind and light, which have the biggest and the most development potential renewable energy and new energy technology at present.That especially suitable for mobile communication base station,and remote sensing, remote control base station power supply and operation environment. The controller can reduce run maintenance cost, improving the quality of communication and system management level,and the efficiency of the whole.
Numerical Simulation of the Kinetic Energy Projectile Deflected by Targets Moving along Transverse Direction
Authors: Chen Jun , Ye Xiao Jun
Published: July 2014

When the kinetic energy projectile into concrete target movement, angle of attack can affect the penetration process of ballistic performance, resulting deflection effect, thus affecting the penetration depth. For the analysis of kinetic energy projectile penetrating the lateral movement of the target deflection model, using the finite element simulation software for lateral movement of the target missile penetrates the process of numerical simulation. The results showed that: rigid lateral movement of the target missile and projectile kinetic energy projectile velocity has some deflection effect. Playing the role of the kinetic energy of the lateral movement of the target, the missile body yaw angular velocity increases and then decreases after the first, but not so obvious kinetic energy projectile yaw.
City Sludge’s Differential Scanning Calorimetry Analysis
Authors: Yang Lu , Lin Shun Hong
Published: July 2014

The differential scanning calorimetry is a thermal analysis. Under program controlled temperature, measure and input to the relationship between the the sample and the reference’s power difference and temperature. The curve which the differential scanning calorimetry recorded called DSC curve. DSC curve in the sample’s rate of endothermic or exothermic as ordinate and in temperature or time as abscissa, which can determine a variety of thermodynamic and dynamics parameters, such as specific heat capacity, the reaction heat, thermal changes, phase diagram, reaction rate, rate of crystallization, polymer crystallinity, purity of a sample,etc. The method has a wide temperature range-175 ~ 725 °C, high resolution, less samples . This topic utilizes differential scanning calorimetry and had a pyrolysis experimental analysis for urban sludge. Due to the rapid development of technology and analyzer’s constant improvement, and computer technology’s speedy development, DSC plays an increasing role in the sludge treatment field.
Design of the Hydraulic System for Carrying Manipulator with 6-DOF
Authors: Wang Min , Wang Cai Dong , Zheng Hui , Fan Guo Feng
Published: July 2014

According to the requirements for wheel hub assembly line, the structure and hydraulic system of carrying manipulator with six degrees of freedom (DOF) is designed. The working principle of the hydraulic system is analyzed. To minimize the output force of the hydraulic cylinder, a mathematical model of hydraulic cylinder output force and structural parameters is established. And then the manipulator structure is optimized based on Matlab software. The key components of the hydraulic system are selected. This research provides reference for design of similar hydraulic system of industrial robot.
Simulation and Study of SPWM Variable-Frequency Drives of Asynchronous Motors Based on Aerostatic Guide Way
Authors: Long Wei , Liu Yan , Zhang Xiao Long , Wang Ting You
Published: July 2014

The asynchronous motor is converted to a model similar to DC motor to control through coordinate transformation, and adopt SPWM inverter circuit, the motor runs with load implements ideal speed and steady operation, providing appropriate speed for aerostatic guide way. Realize simulation of asynchronous motor variable frequency speed regulation system by simulink.
Implementing Lean Techniques on the Shop Floor Improvement of a Delivery Company
Authors: Shay Jason , Shieh Peter Iming
Published: July 2014

CTC Express is the leading domestic company in delivery service and wants to improve their business efficiency by establishing lean management in the shop floor activities. Lean management is generally adopted by the manufacturing industries as a significant technique to reduce waste and operation costs. This paper investigates the continuous improvement through value stream mapping, begins with describing the current situation and proposes the future condition. Several improvements were implemented in the company such as the transformation of automation process, better result in visual control and standardization processes. The new proposed system has shown being able to reduce the works of loading/unloading and in the same time to increase the performance of material handling in each cycle time.
The Series and Parallel Energy Storage System Based on Super Capacitors
Authors: Zhao Kuo , Zhang Yi Bin , Yu Bo
Published: July 2014

The series and parallel energy storage system based on super capacitors can quickly adjust a wide range of active and reactive power in two directions, which is a new way to improve the stability and power quality of new energy power generation system. In this paper, double converters structure is used to achieve the series and parallel compensation effect and their control strategies according to Instantaneous Power Theory. It is simulated in PSCAD that series and parallel energy storage system of super capacitor contribute to the impact on wind turbines power as environment conditions change. Simulation results show that the energy storage system can greatly improve the stability and power quality of grid-connected wind turbines.
Exploration on the Dual Spool Design of Rotary Hydraulic Valve
Authors: Qiu Li Jun , Xu Su Ying
Published: July 2014

There is also a monomer leak valve body on the single spool, Leakage between the guide groove affected the layout of the form guide groove. Two end faces of the single spool work in the different fluid pressure in the chamber. When the working pressure of the hydraulic system is high, the pressure differential will cause the spool bearings subject to large axial force. It will increase the resistance torque of bearing rotation. Effects of axial force also limits the increase spool diameter. Double spool valve with two spool rotation series manner. Each spool in the same pressure in the working medium. Eliminating the axial force of the valve body due to fluid pressure differential generated, also reduces the resistance to rotation of the spool moment and the impact of guide groove arrangement by oil leak, and also the commutation frequency of the rotary valve can be improved by increasing the diameter of the spool.
The Study of Mine Explosion-Proof Enclosure Design and Optimization
Authors: Zhang Qing Long , Yang Su Jun
Published: July 2014

In this paper, the shell’s strength and stiffness is calculated according to the theory of elastic mechanics and elastic-plastic mechanics theory.And the analysis of the ANSYS software verify the reliability of the theoretical calculation . Using ANSYS parameter design language (APDL) and the optimized design module of ANSYS,the author studies Material nonlinear static analysis ,and establish the parametric analysis program.
Research on Fault Diagnosis Method for Crankshaft of Drilling Pump Based on Operational Deflection Analysis
Authors: Bie Feng Feng , Pei Jun Feng , Lv Feng Xia
Published: July 2014

Crankshaft is the critical component of the drive system of drilling pump. A new state feature extraction method for crankshaft based on operational deflection analysis is presented in this paper. The superiority, feasibility and validity of the system deflection analysis method are figured out with comparison of traditional methods. The vibration deflection technique can supplement with the time-frequency variation of key parts of the crankshaft for the normal measurement information on which the system fault diagnosis is processed. The process illustrates that the method of vibration defection analysis can extract the working state feature entirely and accurately, while provide the valid support for the corresponding fault mode recognition.
Improving Design of Cup Conveying Part for Sealing Machine Based on PLC
Authors: Pan Li Ai , Du Qiu Lei , Wu Yan Li
Published: July 2014

In order to improve the sealing quality and reduce the labor intensity of people, the stepping motors have been adopted in the salver mechanical transmission part and sealing part of the original sealing machine. In the paper, salver feeding and control system of sealing machine have been designed. The results have been obtained such as control principle diagram of the control system, equivalent circuit diagram and outer wiring diagram of PLC and PLC control program. It can realize the automatic control of the sealing machine. Improved sealing machine has the characteristic of simple mechanical transmission parts, advanced control system, small human error, low fault rate and easy operation.
Analysis of Impact of Driving Amplitude on Resonance Frequency of Silicon Microgyroscope
Authors: Jiang Shao Dong , Su Yan , Shi Qin , Qiu An Ping
Published: July 2014

Increasing the driving amplitude could improve the sensitivity of silicon microgyroscope, which is the effective way to enhance the performance of gyroscope. However the large driving amplitude leads to the nonlinear effect. As a result, the resonance frequency is dependent with the driving amplitude, which influences the frequency stability of gyroscope. The equivalent model of driving beam is established, and the stiffness formulas of driving beam are derivated according to the large deflection theory. The linear stiffness of driving beam is 270.1N/m and the nonlinear stiffness is 3.237×108N/m3, which are 2.7% and 6.4% different from the simulative results. Harmonic balance method can be used to establish the relationship between driving amplitude and resonance frequency. The theoretical analysis results are carried out compared with the simulative analysis results. Also the impact of driving amplitude on resonance frequency is confirmed by experiment test. This paper is significant for improving the frequency stability, and provides a theoretical basis for optimizing the structure of gyroscope.
Stress Characterization and Mechanical Analysis for Supporting Leg of SiGe/Si MQWs Based Bolometer
Authors: Jiang Bo , Dong Tao , He Yong , Su Yan
Published: July 2014

The paper presents an “L-type” leg applied in SiGe/Si Multi Quantum Wells (MQWs) based bolometer. Characterization structure has been designed to take measurement for α-SiNx:H film stress. The displacement of beam endpoint in the structure is 0.48 micron and the interior stress is about 87 MPa totally through generalized Hooke law. Furthermore, the mechanical analysis for SiGe/Si MQWs based bolometer has been taken and the largest stress is about 600 MPa in the calculation. The bolometer SEM photograph is shown at last.
Design and Realization of Remote Control UAV’s Flight Controller
Authors: Tian Ye , Deng Hong De , Zhuang Hao Yue
Published: July 2014

To provide UAV’s operator with flight information in real time, according to the property of remote control UAV and human-machine interface design, a flight controller has been implemented. The flight controller used LabWindows/CVI、GL Studio and UDP communication as the main developing platform. The system has been used in projection, and the test had showed that it could meet the need of the GCS(ground control station) of remote control UAV.
Study of AT Based on the Lever Method
Authors: Li Jiang Jiang , Li Jing Hua
Published: July 2014

The rotation speed and shift process of automatic transmission were analyzed intuitively based on lever method in this paper, the design reasonableness of transmissions was verified as well; At the same time the measure of improvement of design of transmissions scheme was put forward.
Growth Behavior of WC Grains in Ni3Al Matrix during Liquid Phase Sintering
Authors: Zhang Wei Bing , Peng Wen , Long Jian Zhan , Wei Xiu Yu
Published: July 2014

Growth behavior of WC grains with two different sizes of 10 μm and 4 μm in the same liquid matrix has been studied in the WC–40vol.%Ni3Al system. The samples were sintered under a carbon saturated condition. Surfaces of the coarse WC grains are strongly micro-faceted and stepped. With the increase of sintering time, the average size of the fine WC grain increases continuously and very large plate-like triangular prismatic WC grains appear. The present investigation thus shows that the growth behavior of fine WC grain is affected by lower solubility of W in Ni3Al matrix and the abnormal growth of WC grains is suppressed. However, the growth behavior of coarse WC grain is governed only by the difference in energy between the facets.
Research on Auto-Test System of Telescope Laser Indicator
Authors: Zhou Na , Li Yong Hao , Li Xin Yan
Published: July 2014

Telescope laser pointer is generally used firearms and other light weapons systems, to ensure accurate light weapons capable of targeting, this paper presents a telescope system automatically detects a laser pointer, laser pointer can be the role of the distance, the laser divergence angle of the laser spot size of the laser optical axis adjustment range and the laser optical axis deviation and other parameters were measured. In this paper, the detection system structure, optical structure was designed; proposed laser pointer detection principle of the parameters; and software design. At last, to meet the requirements of this system has been experimentally derived by experimental verification, measurement accuracy.
The Development of Underground Personnel Data Terminal Based on RSSI Location
Authors: Li Hong Yi , Chen Chuan Zhong
Published: July 2014

Based on the emerging ZigBee wireless RF communication technology, this paper presents the design of a miner information collection terminal. The entire system is designed around the CC2431 SoC hardware circuit, through ZigBee networking, to achieve the location of underground environment and miner vital signs data acquisition, so that it can provide effective help to quickly carry out rescue work.
The Design of Embedded Video Monitoring System Based on DSP Processor
Authors: Hu Wen Bin
Published: July 2014

This paper designs a embedded video monitoring system based on ARM processor Ep9315 and TMS320DM642, and using embedded Linux operating system. In the system, video capturing module uses the video decoder TW2814. In order to capture better data, the control of TW2814 is needed. Through the imitation of I2C bus, the driver provide the application with the function of the setting of capturing parameters such as hue, color saturation, contrast and brightness, and the check of video losing.
Coiling Tension Control System of PID Simulation
Authors: Wang Zhong Chu , Ding Yuan , Zhao Hong Yang , Hu Xiao Dong
Published: July 2014

Coiling tension control system is the main control means to ensure the quality of the rolling process. According to the characteristics of coiling tension control characteristics and the requirements of actual engineering, establish the mathematical model of the double closed loop control system and use the traditional PID to tuning the model parameters. It is proved by Matlab simulation experiments that traditional PID can effectively improve the response process of coiling tension control system and greatly enhance the dynamic and steady-state performance.
Structure Principle and Measurement Index of New Energy Reclaiming Suspension
Authors: Bai Jing , Guo Yan Zhao , Peng Ming
Published: July 2014

The traditional hydraulic shock absorber suspension converts the vibration energy between the sprung mass and unsprung mass into heat energy. The realization of vibration energy recycling can reduce vehicle's energy consumption, developing ideals for the research of the active suspension/ semi-active suspension. Four kinds of energy reclaiming suspension's structure principle is introduced in detail and the development restricting factors of the suspension at present are worked out through the unified measure, indicating the technology breakthrough points.
A Improvement of the Keep-Right-Except-to-Pass Rule in the Model of Modified CA (Cellular Automata)
Authors: Ma Yue
Published: July 2014

We build the model of Modified CA(cellular automata) to analyze the right-hand drive principle, at the same time we put forward the New Principle (In the principle, right lane is the high-speed lane and vehicles driving on it normally. This paper divides the whole principle process into four stages. The overtaking vehicle (A) send signals to the overtaked one (B),B moves to the low-speed lane to let A pass, A moves straight to finish overtaking and B returns.) and its creation is optimized by the model. At last, we use the model to analyze the traffic conditions in different principles or vehicle density or speed limit.
Vibration Analysis of Cable Suspended Parallel Mechanisms with Dynamic Base Platforms
Authors: Hu Yong Pan , Tao Li Min
Published: July 2014

Cable suspended parallel mechanisms have potential applications in offshore cargo handling. Due to the flexibilities of the cables, the cargo will vibrate under the excitation of wave-induced ship motion. This paper analyzes the vibration of cable suspended parallel mechanisms with dynamic base platforms. Based on the linearization of the dynamic model about a nominal trajectory, the vibration equation is given. The natural frequencies, sensitivities and frequency responses of the mechanism are derived from the vibration equation. Numerical results of an example are discussed, which validate the analysis given by this paper.
Based on the Geostress to Research Slope Stability in the Deep Open Pit
Authors: Li Qing Wen , Qiao Lan , Chen Lu
Published: July 2014

Further excavation is extraordinary significant to the sustainable development of mine. For the rock slope, three-dimensional geostress in the deep mining area are presented complex and high, which were caused by previous excavation. Also, it is important to obtain the accurate geostress in mining area, which is the necessary precondition for determining the remaining ore mining scheme and the slope stability. In this paper, based on the in-situ geostress monitoring date, a 3D numerical model alongside the physical dimensions was built in finite element software FLAC3D, to accept the constitutive parameter and monitoring data, to predict the 3D stress and displacement distributions and detail failure information, to estimate stability of mining area.
Improvements on Structural Static Pushover Analysis Method in High-Rise Building Structure
Authors: Yu Miao , Dai Zhi Hong , Hu Gui Juan
Published: July 2014

In this paper, a new analysis model to assess the structure seismic capability is established, using improved capacity spectrum method. The model can solve the problem of many unknown and big computation workload in the process of conventional Pushover analysis. Conventional Pushover is very complex when use in the analysis of structure dynamic problem and nonlinear problem, the new model can solve these problem.
A Novel Vertical Lift Machine and its Precise Pose Control
Authors: Liu Xiao Bo , Wei Xiao Feng , Yuan Xiao Dong , Ni Wei
Published: July 2014

This paper deals with the design and theoretical analysis on a novel vertical lift machine which can vertically lift above 700 kg load up to 3.2 meters above the floor and located the load with high accuracy of position and orientation. Firstly the design model based on the installment demands of line-replaceable units (LRUs) is constructed. Then theoretical analysis including the number of degree of freedom of the lift machine, the inverse kinematic, the control principle, the lift platform pose error and the precise pose control method are conducted in the article. The validity of the design model and the effectiveness of the precise pose control system are confirmed by experiments using a prototype lift machine.
Development of a Rotary Drilling Mechanism for Impregnated Diamond Bits
Authors: Li Zhan Tao , Ma Yong Zheng , Itakura Ken-ichi
Published: July 2014

Impregnated diamond core bits are often used in core drilling for geological surveys. A tri-state theory is proposed to describe the three states in drilling processes for a diamond particle or a bit. These states are contacting state, cutting state, and ploughing state. Furthermore, the relations among thrust and other mechanical parameters are also summarized. The optimal value of the specific energy is in the cutting state. Several experiment results verified the proposed model. This mechanism is useful for selecting operation parameters in core drilling using impregnated diamond core bits.
Soil Moisture Monitoring System Based on RS485 Bus
Authors: Wang Lei
Published: July 2014

In order to greenhouse plants for automatic irrigation operation, was designed based on the soil moisture monitoring system of RS 485 bus system, the oscillation frequency of the clock oscillation circuit, and a main chip count, frequency signal PC software will be the main chip records show, form curve, thus providing the basis of the data for the automatic irrigation, experimentally tested for a long time, the system performance is stable and reliable.
The Finite Element Analysis of the Large-Diameter Composite Slurry Valve Gate
Authors: Wu Jie , Yang Zhao Meng , Wang Dong Zheng
Published: July 2014

In a long distance slurry pipeline transport system, pulp valve plays a vital role, which combined the pulp valve application is more, ram is one of the important components of composite slurry valve. This article mainly aims at gate has carried on the design and analysis, finite element modeling, and study the corresponding constraints, in the process of loading method, large diameter combination valve gate stress and strain distribution are obtained, combined with the optimization method and finite element analysis software for its structure optimization research, realize the lightweight of the gate. To reduces the manufacturing cost of the gate, as to provide theoretical basis for design.