bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis on the Security Assess Requirements of Mobile Banking Based on Mobile Smart Terminal
Authors: Zhang Yan , Jiang Sha Sha , Zhang Jun Bin , Lu Lei
Published: December 2013

With the rising user number of mobile smart terminal and the rapid development of Internet in our country, the demand of resources sharing between mobile terminal and the Internet becomes more and more urgent. However, the mobile banking based on mobile smart terminal is facing increasingly serious security threatens. On the basis of a comprehensive analysis of the development and present situation of mobile banking, this paper describes the related security mechanism and potential security threatens of mobile banking. Furthermore, information security technology and development trend of mobile banking are comparised and summarized in this paper, and the security assessment demand for mobile banking is proposed.
Study on Preparation and Properties of MRP/HDPE Composite
Authors: Li Jia , Zhang Yan Fei , Zheng Wei , Pan Ping , Sun Xiao Jun , Mei Hong , Xu Xian Hua
Published: December 2013

In this paper, red phosphorous (RP) was coated by aluminum hydroxide to prepare modified RP (MRP). MPR was blended with high density polyethylene (HDPE) to obtain MRP/HDPE composites. And the properties of MRP/HDPE composites were investigated. The effects of MRP on the flame retardancy, thermal decomposition behavior and mechanical properties of HDPE were also discussed.
Research of Influence Thickness of Nanocrystalline VOx Films on their Electrical Properties
Authors: Ageev Oleg Alekseevich , Gusev Evgeny Yurievich , Zamburg Evgeny Gennad’evich , Michailichenko Alexsander Valer’evich , Gamaleev Vladislav Anatolyevich , Tkachuk Vladislav Vladimirovich
Published: December 2013

Nanocrystalline VOx thin films were manufactured by using pulsed laser deposition. The influence of deposition time on electrical parameters of VOx thin films were researched. It was determined that changes in deposition time lead to significant changes in properties of thin films, including resistivity in the range from 5 Ohm·cm to 70 Ohm·cm. The possibility of controlling physical properties of VOx nanocrystalline films obtained in the experiments has been shown.
Effect on LY12 Aluminum Alloy Welding Joint Microstructure and Properties with Electron Beam Welding Technical Parameters
Authors: Zheng Qiang , Yang Cheng Gang , He Yu , Chen He , Yu Ai Wu
Published: December 2013

LY12 aluminum alloy was welded with vacuum electron beam welding, the effect of welding speed and electron beam current on the weld microstructure and mechanical properties of welding joints were studied, the results were shown that with the increasing of welding speed or decreasing of electron beam current, the grains in weld metal were refined, so the joint strength were increased. When the electron beam current was 18mA, the welding speed was 1000mm/min, the grains of weld metal were the finest, and the tensile strength was 373.2MPa. In addition, the micro-hardness of weld metal was much lower than base metal and heat affected zone, and the heat affected zone had certain softening phenomenon. With the increasing of welding speed or decreasing of electron beam current, the micro-hardness of weld metal was increased respectively.
Research on the Demulsifier and Decalcifying Agent for Crude Oils in Electric Desalting Process
Authors: Wang Ping , Liang Chao Lin
Published: December 2013

Development of new and efficient demulsifier and decalcifying agent of crude oil has important significance for improving the processing properties of heavy crude oil and increase the yield of light oil. High salt and water contents of crude oil after electric desalting is easy to cause the rapid expansion of volume of water after vaporization, the gas load of distillation tower increases, interfering the smooth operation of distillation tower, A slight impact will influence the quality of products separation, serious implication form the accident of punching Tower caused by the "bumping" of water; increase energy consumption and corrosion of equipment, influence twice processing quality of raw material. In addition, in processing high acid and high calcium crude oil, the presence of naphthenic acid calcium is easy to make the chaos of electrical desaltinger operation. Metal calcium may reduce the activity of catalyst of catalytic cracking and hydrocracking, increases petroleum coke ash in delayed coking, reduces the ductility of oil asphalt, aggravates the corrosion of refinery equipment, influences the safety of production. This requires to optimize the distillation technology of desalting equipment, to develop the evaluation and selection of demulsifier and decalcifying agent and reduce the moisture and salt content of desalted crude oil.
Design of Oil-Water Interface Meter Based on Segmental Capacitance Sensors
Authors: Song Da Yi , Lv De Cai , Liu Zhao Qun
Published: December 2013

The technology of measuring oil-water interface height in oilcan has always been a critical and extremely complex problem. This paper introduced a system for measuring oil-water interface height based on segmental capacitance sensor which is constructed by 30 parallel capacitors, which were connected to a switch to low capacitance measure circuit .The changes in capacitance were measured and then sent to IPC to find the height of oil-water interface. Finally, the oil-water interface height meters examination system was constructed in laboratory and experimental results show that the design basically achieved the desired objectives and requirements.
Preparation of Sorbent Loaded with Nano-CuO for Room Temperature to Remove of Hydrogen Sulfide
Authors: Li Fen , Wei Jin , Yang Ying , Yang Guang Hui , Lei Tao
Published: December 2013

In this paper, an efficient metal oxide sorbents for the deep removal of H2S were synthesized using equal volume impregnation (EVIM) method. Modified coconut shell charcoal was selected as support to deposite the particles of copper oxide onto the surface. And copper nitrate were selected as the active component precursors in the preparation process of sorbents. Sorption experiments were carried out at room temperature in fixed-bed reactor. The grain size and crystal form of loading metals were characterized by X-ray diffraction (XRD). We investigated the effects of modifier onto coconut shell charcoal, load rate of metal oxide and calcination temperature on the desulfurization activity of the sorbent. Results show that the best modifier for coconut shell charcoal is KOH, which is significantly better than the other modifiers. And the optimum load rate is 20%(wt), the optimum calcination temperature is 300°C. Copper oxide onto the surface of modified coconut shell charcoal proved to be monoclinic nanoparticles with grain size of 18.7nm. Sulfidation test was carried out on the condition of i) the concentration of hydrogen sulfide gas (mixed with nitrogen ) is 1024.2ppm and ii) gas velocity is 20ml/min, iii) 0.1g sample in the middle of the fixed-bed reactor (length: 450 mm, interior diameter: 5 mm) to test. The sample show excellent sulfur removal efficiency and its breakthrough time is up to 287 min on this condition.
The Fall Detection Method Based on the Wireless Acceleration Sensor
Authors: Liang Zheng You , Xu Ya Long , Li Zheng
Published: December 2013

To judge whether the alone elderly fall or not is an important need in the elderly health supervision. This paper puts forward a method based on three axis acceleration data and pattern recognition has been presented to judge the situation of falling for old men. The method was based on an acceleration transducer named MMA7260Q. Due to the characteristic that the three-axis signal divers in a huge area during the progress of old men falling, it combined the peak value of acceleration and acceleration energy curve to proceed three axis acceleration data for detecting the falling, it could avoid outputting errors due to the changing of angle of old men. According to the result of the experiment, the accuracy rate of the method of detection proposed in the report could run up to 93 percent.
Dimensions Design of Planar Five-Bar Linkage Transplanting Mechanism for Transplanter
Authors: Jiang Lin , San Hong Jun , Ma Shuai
Published: December 2013

This paper proposes a way of design a transplanting mechanism with plane five-bar linkage for the transplanter. The dimensions of five-bar linkage, which fit the agronomic needs, are designed. Multiple-population genetic algorithm is used to generate the mechanisms in optimum synthesis. And a five-bar linkage is generated in typical example. Also it can fit the needs of given seedling.
Analysis of the Impact of High Speed on the Dynamic Characteristics of Engine by Intake Phase
Authors: Xu Jiang Tao
Published: December 2013

Thispaperbases on the electromagnetic driving valve technology, make the intake system used electromagnetic valve a vehicle engine at 5200 rpm. Found that increasing the intake Continued phase not always value increases intake air mass , but taking into account the effect of reflux cylinder, phase only opening time and the cylinder return to match the increased the air intake of the engine, and then improve the engine power performance.The results shows that intake air quantity can be improved 7.368%at5200 speed.
Modeling and Simulation of Deicing Vehicle Brake
Authors: Liu Rui , Tang Lan , Li Zhuo Qing
Published: December 2013

Parameters of disc brake are calculated according to overall design requirements of the deicing vehicle. Based on the principles of its mechanical structure, ADAMS is used to set up the 3D model and simulate the braking performance. Simulation results show that the braking force of the model grows sharply and steadily and the braking distance satisfies the national standards. This progress provides a useful method to shorten the design cycles of special vehicle brakes, and to reduce its design costs.
Realization of the Car Tire Puncture in Virtual Environment
Authors: Li Jin Fang , Fang Shun Mu , He Han Wu , Wen Jun Wei
Published: December 2013

Traffic accidents,which are caused by faulty tires, have caused great losses to people's life and property.At present, generally,researching prevention measures of tires puncture are through real car tires tests around domestic and international. I made a research about automobile tires puncture performance in a virtual driving environment ,to build a virtual car tires puncture research system in combination with the VC platform and EON simulation software, and used the Logitech G25 controller to manipulate virtual cars, then real-time human-computer interaction was achieved.
Research of the Worm Gear and Worm on the Splicing Marine Crankshaft's Trimming Device
Authors: Yuan Zi Xia , Cao Shou Qi , Zhang Li Zheng , Zhang Shuai
Published: December 2013

For the convenience of the research of the splicing marine crankshaft's trimming device design, this article provides a design idea, and the strength calculation of the core parts of worm gear and worm strength calculation and checking methods are studied to according to the different models of splicing crankshaft to choose proper trimming device of worm gear and worm.
Foreword
More than ten cylinder large Marine crankshaft is heavily in research and development in our country, the initial design concept through two small crank were spliced. Now we need to design a bracket can be tuned to ensure that the crankshaft used for splicing two concentricity error is within the allowable range . This article briefly introduces the requirements for the working platform and technology trimmer splicing type ship.
Research on the Reverse Mold Assembly Technology Based on Product Gene
Authors: Zhu Huo Mei , Zhang Yu Bin , Zhu Mei Zhen
Published: December 2013

Using CAXA as a software platform, based on the idea of reverse engineering technology to solve problems to ensure the quality of the mold assembly, ease of maintenance and improve efficiency principles and methods without the repairing, within the three-dimensional measurement technology, information technology and reverse engineering technology. Researching the reverse engineering technology based on product gene, proposing a concept of the reverse mold assembly technology based on Product Gene.
An Influence of the Mesh Size on the Results of Finite Element Analysis of Z-Purlins Supported by Sandwich Panels
Authors: Tusnina Olga
Published: December 2013

In this paper the questions of numerical analysis of thin-walled Z-purlins in the coverings of buildings made of sandwich panels are considered. Numerical analyses are done in the program MSC.NASTRAN. An influence of the mesh of elements on the results of calculations is studied. The results of carried out numerical analyses allowed developing the method for determining the stiffness of connection purlin with sandwich panels.
Study on the Influence of Ambient Temperature on Spindle Box of the Wheel Groove Milling Machine Based on ANSYS
Authors: Luo Fan Jie , Song Dan Lu
Published: December 2013

The spindle box is the key part of the machine, and the distribution of the temperature field and the thermal deformation will directly affect the machining precision under multiple heat sources. Taking the spindle box of the CX056 nuclear power rotor wheel groove milling machine as research object, the heat sources and boundary conditions were calculated, and the temperature field and the thermal deformation were established under action of different ambient temperature, using finite element method. Finally, the effects on the front end of the spindle were analyzed under different environment. The analysis result shows that the environmental temperature had an obviously effect on thermal deformation of the spindle box, and controlling environmental temperature reasonably can reduce the thermal deformation and improve the machining accuracy of machine tool.
Application of Computer-Aided Visual in Advertising Design
Authors: Yang Qing Gang , Zhang Meng , Xiao Chang
Published: December 2013

The three-dimensional computer technology currently has in various engineering fields have a wide range of applications, all the three-dimensional visual effects technology can bring us visual impact, the use of three-dimensional computer technology produced by the television advertising more easily accepted by the audience, this thesis in the three-dimensional computer-aided design advertising design application technology.
The Application of Correlation Recognizing Technology in Failure Prognostic System
Authors: Zhan Jie , Niu Lin , Huang Jin Xin , Cui Jin Tao
Published: December 2013

In order to ensure the safe and stable operation of power grid and reduce the huge economic loss by equipment failure, Failure prognostic system plays a vital role. Based on distance correlation principle ,this paper proposes a method of failure prognostic. We analyze correlation between various factors influencing the equipment failure and failure from a large number of historical data. Then sets fault indicators by weight function. When online testing data are beyond the fault indicator ,system alarms. Then system prompts operating personnel to check equipments state. At last, through overheating fault of transformer case validates the effectiveness of the proposed method.
Fault Diagnosis of Analog Circuits with Tolerance Based on Simulation-before-Test and Distance Algorithm
Authors: Zhang Yong Jie , Hou Jian Jun , Huang Liang
Published: December 2013

Fault dictionary is the most practical method of fault diagnosis in analog circuit. Before analog circuit with tolerance is diagnosed, circuit is simulated by computer. Typical parameters of every state are used to build fault dictionary. Distance algorithm is used to calculate the similarity between current circuit and every state of fault dictionary. Analog circuit with tolerance can be diagnosed by the distance. Firstly, the method of simulation-before-test is introduced to build fault dictionary. Secondly, familiar distance algorithm is resumed, such as Euclidean distance. Finally, an example of fault diagnosis of analog circuit with tolerance is provided. In the example, simulation-before-test and distance algorithm are combined to diagnose analog circuit with tolerance. Two distance methods are compared to explain the advantages and disadvantages of the Euclidean distance algorithm.
Oscillation for Third-Order Nonlinear Delay Dynamic Equations on Time Scales
Authors: Liu Shou Hua , Zhang Quan Xin , Gao Li
Published: December 2013

The oscillation for certain third-order nonlinear neutral delay dynamic equations on time scales is discussed in this article. By using the generalized Riccati transformation and the inequality technique, three new different sufficient conditions which ensure that every solution is oscillatory or converges to zero are established. The results obtained essentially generalize and improve earlier ones.
The Convective Heat Transfer in Furcated Blood Vessels
Authors: Zhang Yan , Xie Hai Wei
Published: December 2013

A finite element model was developed to simulate the 3-D velocity and temperature distributions in a vessel system including a bifurcated blood vessel and two branches. The effect of the angel between vessels and bifurcation ratio were taken into account, and the local Nusselt number at three typical radial angels and the mean Nusselt number on a section in the branching vessel were obtained. Results show that: the flow and temperature fields were highly unlike the distributions of a single vessel; the local Nusselt number were different at different radial angels; In the entrance region of the branching vessel the mean Nusselt number on a section was larger than that in a single vessel, and there was a maximum of mean Nusselt number whose value and location varied as the different furcating angel or bifurcation ratio; the mean Nusselt number decays rapidly at a small bifurcation ratio.
Experimental Investigations on the Relationship between the Capacitor Capacity and the Performance of the Passive Dynamic Filter
Authors: Song Shu Hong , Chen Jing , Yang Kun , Yuan You Xin
Published: December 2013

In the passive dynamic harmonic filter, the variation of the capacitor value has an influence on the filtering performance. To analyze the relationship between the capacitor capacity (C) and the filtering performance, the experimental investigations are finished in this paper. The test results show that the variation of capacitor value can result in the resonance point drifting and the proper increase of capacitor capacity can increase the maximum of the absorbed harmonic current.
Research on Digital Filter Design for Orthogonal Decomposition Algorithm Applied in Coriolis Flow Meters
Authors: Liu Wu , Ding Guo Qing , Chen Xin
Published: December 2013

Coriolis flow meters are used in measuring flow amount of natural gas and oil due to the good performance and high precision. Orthogonal decomposition algorithm is the most efficient algorithm with the highest precision in processing the digital signals of Coriolis flow meters, and digital filter design is vital important in the algorithm. In this paper we introduce a digital filter system combining the self-adaptive lattice notch filter and low pass filter embedded with Hanning Window or Kaiser Window, we also discussed the parameters selection and adjusting method deeply and systematically. For self-adaptive lattice notch filter, we calculate the key feedback parameter ρ based on bandwidth BW, leading the relative error of frequency calculated within 0.01%. For low pass digital filter, we adjust the filter order through monitoring the sine feature of the orthogonal component that has passed the low pass filter, and the relative errors of phase difference are within 0.1%. We also demonstrate the feasibility of this system through simulation under MATALAB system and calculating experiments data of Coriolis flow meter.
Design of a AC Current Source for Inductive Loads
Authors: Hao Kui Hong , Li Bin
Published: December 2013

Inductive loads are common in the real time monitoring system of aircraft engines. The excitation for these loads is better to chose current source. A stored program control interchange current resource based on DDS and current feedback amplifier was designed for these loads. When the output frequency of the resource was chosen 5kHz, the export current can reach 10mA and the change of the amplitude is less than 1%.
Modelling and Simulation of the Modified Equivalent Circuit of Electromagnetic Radiation Effects
Authors: Fan Jie Qing , Hao Jian Hong , Song Zi Xian , Liu Xue Fen
Published: December 2013

In the complex electromagnetic environment, the cable is one of the paths through which the energy of electromagnetic interference (EMI) may couple into the electronic component and circuit in the shielding enclosure. A modified field-circuit method which combing the 2-port network theory and the mixed potential integral equation and the method of moments (MPIE-MOM) is presented to analyze the electromagnetic radiation effects of an enclosure with a cable under any form of electromagnetic interference. Taking the Gaussian pulse as an example, the electromagnetic radiation effect of the PCB in the enclosure is analyzed with the field-circuit method. The model presented in the paper is a theoretical reference for the design of the electronic equipment which working in the complex electromagnetic environment.
The Research of CNC Constant Voltage Power
Authors: Lin Shi Wei
Published: December 2013

CNC constant voltage power is composed by the analog power circuit, MCU control circuit , pulse width modulation circuit, a power driver amplifier , analog to digital conversion circuit , the input voltage setting circuit and the output voltage display circuit. The power possesses the functions of digital regulator, high precision output, short-circuit & over-current protection and alarm functions, especially for a higher accuracy requirements for various occasions.
Relativity Analysis of Technology Business Incubating Ability
Authors: Deng An Peng , Deng Yi Xuan , Li Hui Tao
Published: December 2013

The gray system theories are introduced into the evaluation and research of the technology business incubators, and the method of gray relativity analysis is used to carry out relativity analysis of the incubating ability of technology business incubators. Taking several typical technology business incubators in Wuhan for examples, the relation between the indexes of incubating ability and the tax revenue achieved by the incubated enterprise can be obtained. Based on the thorough analysis of the result some suggestions to improve the development of Wuhans technology business incubators are proposed.
Water Level Intelligent Monitoring System Based on Mobile Terminal and PC Terminal
Authors: Li Lei , Li Zheng
Published: December 2013

In order to obtain the real-time hydrological information, and conduct the analysis and early warning on hydrological data, this paper studied the water level acquisition algorithm, used the dissection method to make the water level more accurate, optimized through image refining to reduce the complexity of the algorithm; it designed the data acquisition module of water level detection system, realized the real-time data transmission through programming, used Microsoft Access database to exchange data between server and communication module, manipulated data in the database, and designed the human-computer interaction interface; experimental studies have shown that this system can have access to information in a real-time and accurate way, and has the functions of warning, settlement &accumulation, statistical analysis and so on, which effectively improves the water level monitoring automation and control level, and helps to improve the management level of the hydrological industry.
Development of DSD from SCM to PC
Authors: Li Fu Ling , He Xiu Ling , Li Yong
Published: December 2013

A kind of device for data storage is realized in this article. The data storage device (DSD) has USB and I2C port. By it we can transmit data from terminal for measure and control that base on SCM (single-chip microcomputer) to PC easily. DSD use EEPROM CMOS chip AT24C512 for storing data, and use USB chip CH341 for transmitting data to PC. This article showed AT24C512, CH341 and the characteristic of I2C BUS. The hardware for taking data and software for communicating between terminal and PC were designed in this article.
A New Method Based on Radio Frequency Spectrum for Background Noise Curve Extraction
Authors: Zhang Jia Nan , Liu Zhi Cai , Pei Zheng
Published: December 2013

The background noise is one of the key factors that interferes the radio monitoring. How to efficiently extract original signals from noises is important for the signal-to-noise separation algorithm. Recently, several algorithms have been proposed to extract signal on certain conditions, which also have their limitations. This paper first reviews and discusses the existing signal-to-noise separation algorithm. Then, we propose a piecewise adaptive threshold algorithm based on the principle of smoothing filter. The algorithm can be adjusted adaptively with the change of the external electromagnetic environment, and can be applied in a wide monitoring frequency bands.
Development on an Acquisition and Analysis System for Indicator Diagram of Piston Engine
Authors: Mao Jian Guo , Wang Han Quan
Published: December 2013

An acquisition and analysis system for indicator diagram (ID) of piston engine is developed for monitoring the cylinder pressure in engine development. The hardware component of the data acquisition system is introduced. The method of the determination of the TDC, the method of filtering the interference signal of ID and the method of implementation with Visual C++ are presented. The system can provide ID online through the experiment on Honda 125 engine. It can directly and conveniently display the information about combustion. Therefore it has a high potential value in engineering applications.
The Difference Effect of Wavelet Transforms and Gaussian Filter in Multi-Resolution Optical Flow
Authors: Han Zhao Hui , Wang Yan Feng
Published: December 2013

Multi-resolution optical flow is the main trends of the current optical flow calculation. Wavelet transform and Gaussian filter are widely used to build multi-resolution structure of the image. In this paper, LK optical flow method mixed with pyramid was used to study the optical flow field. The different effects of wavelet transform and Gaussian filter in the flow distribution was also discussed. Experimental results show that the selected image decomposition method has a significant role in optical flow field calculation.
Analysis and Study on GNSS Data under EHV Transmission Environment by Using TEQC
Authors: Jia Zhi Ge , Nie Zhao Sheng , Chen Zheng Song , Liu Gang
Published: December 2013

TEQC is a tool which can be commonly used in GNSS data translation, editing, and quality checking, it's widely used in GNSS data preprocessing. This paper has introduced the common syntax and instruction of TEQC when it used in GNSS data processing, also introduced the testing examples of GNSS receiver under three environments: 220KV UHV transmission line environment, 500KV UHV transmission line environment and standard GNSS calibration field, then using TEQC to preprocess and analysis the data. The results showed that: a)The GNSS observation data Efficiency is not effected from radio interference generated by EHV transmission lines; b)Within 25 meters ranges GNSS observation data under EHV transmission line, the multi-path effects (mp1 and mp2 value) significantly exceeded the normal range, and the voltage higher, the multi-path value larger. c)Apart from 50 meters outside EHV transmission line, there is almost no effect about multi-path affects in the high-precision GNSS observation data.
Blind Source Separation of Noisy Mixed Speech Signals
Authors: Li Hui Ya , Shi Jian Ying , Men Jin Xi
Published: December 2013

In this paper, a new method for blind source separation of the noisy mixed speech signals is introduced. Firstly, the adaptive spectral subtraction is adopted to eliminate noise of noisy mixed speech signals. Secondly, the FASTICA algorithm is used to separate denoised mixed speech signals .Finally, wavelet transform is applied to remove the residual noise, and then the estimation of each speech source signal can be got.
Room Temperature Sample Scanning SQUID Microscope for Imaging the Magnetic Fields of Geological Specimens
Authors: Wang Qing Meng , Qin Hua Feng , Liu Qing Song , Song Tao
Published: December 2013

A microscope to image weak magnetic fields using a low-temperature superconducting quantum interference device (SQUID) had developed with a liquid helium consumption rate of ~0.5L/hour. The gradient pickup coil is made by a low-temperature superconducting niobium wire with a diameter of 66 μm, which is coupled to the input circuit of the SQUID and is then enwound on the sapphire bobbin. Both of the pickup coil and the SQUID sensor are installed in a red copper cold finger, which is thermally anchored to the liquid helium evaporation platform in the vacuum space of the cryostat. To reduce the distance between the pickup coil and sample, a 100 μm thick sapphire window is nestled up to the bottom of the cryostat. A three-dimensional scanning stage platform with a 50 cm Teflon sample rack under the sapphire window had the precision of 10 μm. To test the fidelity of the new facility, the distribution of the magnetic field of basalt slice specimens was determined. Results show that the spatial resolution of the newly-designed facility is 500 μm with a gradient magnetic field sensitivity of 380fT. This opens new opportunities in examining the distribution of magnetic assemblages in samples, which bear great geological and geophysical information.
Cloud Computing Model for Big Geological Data Processing
Authors: Song Miao Miao , Li Zhe , Zhou Bin , Li Chao Ling
Published: December 2013

Geological data with phyletic and various, huge and complex data format, the analysis of geological data processing is mainly divided into three parts: Mines forecast, mine evaluation and mine positioning. Traditional geological data analysis model is limited by limited storage space and computational efficiency, and cannot meet the needs of a large number of geological data fast operations. "Big data technology" provides the ideal solution to the vast amounts of geological data management, information extraction, and comprehensive analysis. For mass storage capacity and high-speed computing power that the "big data technology" need, we built an intelligence systems applied to the analysis of geological data based on MapReduce and GPU double parallel processing cloud computing model. For a large number of geological data, using hadoop cluster system to solve the problem of large amounts of data storage, and designing efficient parallel processing method based on GPU (Graphics Processing Units: calculation of Graphics Processing unit), the method was applied to MapReduce framework, finally completing MapReduce and GPU double parallel processing cloud computing model to improve the operation speed of the system. Through theoretical modeling and experimental verification, indicating that the system can meet the analysis of geological data operation precision, the operation data amount and the operation speed.
A Study for Removal of Pipe Vibration on Swirlmeter
Authors: Ma Cai Wei , Zhao Xin Hua
Published: December 2013

This paper provides a method to eliminate pipe vibration on swirlmeter. We made an experimental research on a diameter 50 mm swirlmeter to study the influence that pipe vibration on the swirlmeter. Results show that using difference method can eliminate the error caused by pipe vibration by putting two sensors along the same side of the swirlmeters axis and using difference method. The experiment proved the approach using difference method to calculate the measured data feasible.
A Review on the Integration of Content-Based English Instruction and Multimedia Technology
Authors: Xie Gui Mei
Published: December 2013

Content-based Instruction (CBI) is a useful and has-proved-to-be-effective approach which value content over form and has gain an edge in instructing students to study. It can both develop students knowledge on a specific subject and improve their language proficiency at the same time. Modern technology, especially the multimedia technology which greatly enriched the content of teaching by providing learners videos, pictures, sounds, etc. makes CBI more dimensional, more solid and more vivid and interesting, thus has been gaining great popularity in language teaching program. Still, a trend of excessive-reliance on multimedia should be modified to get an effective balance in language teaching.
Optimizing of Light Stripe Image Acquisition in Light Section Method Measurement
Authors: Tang Rui Yin , Li Peng Fei
Published: December 2013

This paper proposed a method to acquire high quality profile image based on a serious of special parameters selection and setting.And to deal with the un-matching between the speed of image grabbing and image processing,we use a special method to grab and process image in parallel based on Halcon platform. The experimental results obtained the high quality light stripe image that could increase the efficiency of measurement and simplify the image process algorithm.
Adaptive Fourth Order Partial Differential Equation Filter from the Webers Total Variation for Image Restoration
Authors: Zhao Dong Hong
Published: December 2013

By substituting an anisotropic diffusion operator for the isotropic Laplace operator in the directed diffusion equation, an improvd directed diffusion equation model is proposed. To overcome the staircasing effects and simultaneously avoid edge blurring, this paper proposed an adaptive fourth order partial differential equation from the Webers Total Variation for Image Restoration. This functional is not only to use Laplace operator but also to add the human psychology system, this paper show numerical evidence of the power of resolution of the model with respect to other known models as the Perona-Malik model. Compared results disctincly demonstrate the superiority of our proposed scheme , in terms of removing noise while sharply maintaining the edge features.
Efficient Data Aggregation with Tolerable Bias for WSNs
Authors: Guo Jiang Hong , Huang Hao Xia
Published: December 2013

To improving the efficiency of data aggregation in wireless sensor networks (WSNs), , authors proposed an efficient data aggregation scheme for WSNs with tolerable measurement bias. Due to sensors located in the same relative small area have similar readings, it is unnecessary for all nodes in this area transmit their values to the aggregator. Comparison with all nodes send their data to the base station, part of sensors keep silent to the servers request will has little impact on the final aggregation result and reducing the energy consumption effectively. Experiment shows the proposed scheme lowers the energy consumption effectively with tolerable bias.
A Possibility Estimation Model and its Application
Authors: Ji Lin Na , Yang Feng Bao , Wang Xiao Xia
Published: December 2013

Aiming at some uncertainty problems such as quality inspection of adhesive structure and risk assessment in the practical engineering application, a possibility estimation model is established. Firstly, according to the fuzziness, randomness and uncertainty of the measurement data, a transformation method of possibility distribution with non-single peak values and nonlinearity is proposed from probability density function. Secondly, for possibility distributions of measurement data of each sensor, a kind of possibility fusion rules is put forward, then the fusion distribution is estimated by the possibility mean. Finally the model is applied to the mechanical property estimation of adhesive structure, and the result forecasts the quality. The proposed model with strong applicability, not only provides convenience for the operations among possibility distributions, but also offers new ideas and new methods to deal with uncertain problems.
Nanocrystalline ZnO Films Grown by PLD for NO2 and NH3 Sensor
Authors: Ageev Oleg Alekseevich , Gusev Evgeny Yurievich , Zamburg Evgeny Gennad’evich , Vakulov Daniil Evgen’evich , Vakulov Zakhar Evgen’evich , Shumov Aleksander Vladimirovich , Ivonin Mikhail Nikolaevich
Published: December 2013

Nanocrystalline ZnO thin films were grown by pulsed laser deposition technique on polycor substrates. The operation laser fluence of 2.0 J·cm-2 and film thickness of 60 nm were fixed while varying target-to-substrate distance (20-135 mm), substrate temperature (100-500 °C) and annealing temperature (300-700 °C). Structural and morphological investigations carried out by reflection high-energy electron diffraction, scanning electron and atomic force microcopies, have shown a strong influence of deposition technique parameters on grain size of the zinc oxide films. Atomic force microscopy showed the surface roughness decreasing and grain size increasing with the annealing treatment of the as-deposited films. The resistivity and Hall mobility of ZnO films were increased with substrate temperature and/or annealing temperature rise. The gas sensing characteristics of the films were investigated towards nitrogen dioxide and ammonia at a selected operating temperature (22 and 50 °C).
Covariance Intersection Fusion Robust Time-Varying Kalman Filter for Two-Sensor System with Uncertain Noise Variances
Authors: Qi Wen Juan , Zhang Peng , Nie Gui Huan , Deng Zi Li
Published: December 2013

This paper investigates the problem of designing covariance intersection fusion robust time-varying Kalman filter for two-sensor time-varying system with uncertain noise variances. Using the minimax robust estimation principle, the local and covariance intersection (CI) fusion robust time-varying Kalman filters are presented based on the worst-case conservative system with the conservative upper bounds of noise variances. Their robustness is proved based on the proposed Lyapunov equation, and the robust accuracy of time-varying CI fuser is higher than that of each local robust time-varying Kalman filter. A two-sensor tracking system simulation verifies the robustness and robust accuracy relations.
Covariance Intersection Fusion Robust Steady-State Kalman Smoother for Multisensor System with Uncertain Noise Variances
Authors: Qi Wen Juan , Zhang Peng , Deng Zi Li
Published: December 2013

This paper deals with the problem of designing covariance intersection fusion robust steady-state Kalman smoother for multisensor system with uncertain noise variances. Using the minimax robust estimation principle, the local and covariance intersection (CI) fusion robust steady-state Kalman smoothers are presented based on the worst-case conservative system with the conservative upper bounds of noise variances. Their robustness is proved based on the proposed Lyapunov equation, and the robust accuracy of CI fuser is higher than that of each local robust Kalman smoother. A Monte-Carlo simulation of three sensors tracking system verifies their robustness and robust accuracy relations.
Dynamic Analysis of the Acoustic Velocity Profile Observation Underwater Glider
Authors: Jia Li Juan , Qi Zhan Feng , Zhang Sen , Qin Yu Feng , Shi Jian , Zhang Xuan Ming , Sun Xiu Jun
Published: December 2013

Underwater gliders carried acoustic velocity meters can realize ocean profile observations of the acoustic velocity for long duration and large scale. This paper mainly studies the kinematics and hydrodynamics of the Slocum underwater glider carrying a acoustic velocity meter MINOSX with length 565mm and diameter 76mm. Thus, theory reference for optimal design parameters of the underwater glider is proposed. By establishing the kinematic equations and giving some related parameters, variations with time of the steady-state gliding velocity, pitch angle, gliding path and attack angle are simulated by using Matlab software; The simulation calculations of the hydro-drag and lift are completed by using Fluent software. Finally, this paper summarizes the dynamic characteristics in steady state of the underwater glider in longitudinal plane.
An Energy Efficient Clustering Protocol Based on Niching Particle Swarm Optimization for Wireless Sensor Networks
Authors: Ma De Xin , Ma Jian , Xu Peng Min
Published: December 2013

According to the energy constraints characteristics of Wireless Sensor Networks, how to optimize clustering, reduce the node energy consumption and balance the network energy dissipation is an main target, we proposes an Energy Efficient Clustering protocol based on Niching Particle Swarm Optimization (NPSO-EEC), the algorithm considers the factors such as the nodes residual energy and neighbor nodes status, etc. The simulation results show that the proposed protocol can balance the nodes energy consumption effectively, reduce the sensor nodes death rate, and prolong the network lifetime.
Research of Supporting Platform of Machine Olfaction
Authors: Fang Hua , Liu Yun Xiang , Yu Wan Jun , Li Wen Ju , Shu Ming Lei
Published: December 2013

A template technology has been applied to the platform of machine olfaction. The simulation sensor array template receives field odor data or simulates the data via recorders in database, and transmits to the platform. The platform consists of several distributed monitoring subsystems based on the simulation template. Each subsystem matches a set of gas sensors array, and has functions of logging data, communicating and simulating industry application. The data from the subsystem and the preprocessed data are sent to the web server center and stored in the databases. The data has been collected, and sensor performance analyzing are performed by several layer algorithms. While the exchanging algorithms convert the field odor data to gas concentrations with ppm values, the expert systems or recognition algorithms analyze the ppm values and show the application results. All data of each layer are stored in server database systems, and each layer algorithms can been updated and saved. Finally, the supporting platform that applied to industrial monitoring systems, was developed with a kind of industrial configuration softwares, web MIS and databases, and was utilized to realize monitor to the environmental systems by the simulation template.
A Reliable Energy Efficient Wireless Sensor Network Hierarchical Routing Algorithm
Authors: Qian Kai Guo , Ou Lin
Published: December 2013

The existing clustering protocols exists shortages that the nodes with small residual energy may be choose as cluster nodes, which communicate directly with sink causes more energy consumption. Member nodes transmit data directly to cluster head also caused more energy consumption. A reliable energy efficient wireless sensor network hierarchical routing algorithm (REHRA) is proposed to further improve energy efficiency. It introduces residual energy factor for election of heads that makes nodes with more residual energy priority become heads. The data transmission for heads to sink uses flooding algorithm that ensures reliability. Routing tree is formed within local cluster and data delivers from leaf nodes to the cluster head. Performance analysis and simulation experiment shows that the new algorithm provides higher energy efficiency and longer lifetime.
Centroid Localization Algorithm Based on the Anchor Nodes Cellular Distribution
Authors: Zou Dong Yao , Han Teng Fei , Zheng Dao Li , Lv He
Published: December 2013

The node localization is one of the key technologies in wireless sensor networks. To the accurate positioning of the nodes as the premise and foundation, this paper presents a centroid localization algorithm based on Cellular network. First, the anchor nodes are distributed in a regular hexagonal cellular network. Unknown nodes collect the RSSI of the unknown nodes nearby, then select the anchor nodes whose RSSI is above the threshold. Finally, the average of these anchor nodes coordinates is the positioning results. MATLAB simulation results show that localization algorithm is simple and effective, it applies to the need for hardware is relatively low.
Ship Dynamic Positioning Control Research Using the Improved SAM Based on ACA
Authors: Su Xiao Lu
Published: December 2013

In fuzzy system, the selection of fuzzy rules is difficult. For the whole system, the merits of the rules seriously influence the final result. This paper uses the ant colony algorithm (ACA) to optimize the weights of the rules in the standard additive fuzzy system. At present, the ship dynamic positioning system has caused wide public concern. In the paper, a ship dynamic positioning controller based on the ACA and the standard additive model is proposed. Through the new controller is applied to control the dynamic positioning ship in the complex sea conditions, the results show that the proposed controller is effective.
Comparative Analysis between Two Trajectory Models of Sinusoidal Maneuvering Missiles
Authors: Fu Qiang , Wang Chun Ping
Published: December 2013

For the sinusoidal maneuvering missile, its important but difficulty to distinguish the Base Course with Constant Velocity Model and the Tangential Arcs Model as the trajectory model. Their similarities and differences are studied to find out the selection method firstly, and their mathematical models are set up in the base-course coordinate system based on the existing references. Using the kinematical equations, the control complexities are derived. Then with the premise of same amplify, same max tangential velocity, same base-course pitch, their overloads and plane trajectories are compared, and drawn out some useful conclusions, such as TA model should be the prior selection for route planning, while BCCV model could be its approximate solution under certain conditions.
Research on PMSM Fuzzy PI Control System
Authors: Qu Wei , Zhang Zhao Xi , Sun Xiao Xin , Li Wen Qiang , Chen Xiao Jie
Published: December 2013

In this paper, a fuzzy PI control method is proposed in order to overcoming shortcomings of traditional PI regulator control permanent magnet synchronous motor, in this paper. This method combined traditional PI control with fuzzy control is enable to achieve self-tuning fuzzy parameters PI control and take into account sensitivity, and robustness of the system. A double-loop (current loop and velocity loop) fuzzy control system is designed by this method. Modular design of the fuzzy PI controller based on FPGA chip is realized and simulation and experimental is done. The experimental results show that this system has advantages of fast response characteristic, good stability and high precision adjustment.
Design of Monitoring System Used in Sink-Float Safety Device for Marine Engineering Equipment
Authors: Wu Zi Yue , Qi Jie , Xue Chen Nan
Published: December 2013

A monitoring system used in marine sink-float safety device is introduced. The ARM Cortex-M3 is the core of microcontroller in this system, and the hardware and software architectures of the monitoring system are designed. The designed monitoring system can multi-point monitor marine environment around sink-float safety device, by doing this, the safety device can take marine equipment to escape from harsh marine environment by submerging a certain depth. So we can make sure marine equipment safe and normal. The experimental results show that the sink-float safety device can work normally in the harsh marine environment with the monitoring system. The acquisition of multi-point environment monitor as well as data management is achieved effectively. The reliability and safety of equipment are guaranteed by the sink-float safety device.
Design on the Polymer Temperature Control System for Tandem Mixer
Authors: Zhao Jinfeng , Li Ming , Zhou Lin
Published: December 2013

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Polymer mixing is the key process of rubber products manufacturing, and mixer is the core equipment in polymer mixing process. By analysis of the effective factors on mixer mixing temperature, this paper study realization method of temperature control system. A polymer temperature control system using tandem mixing technology is designed to improve the mixing efficiency and the quality.