bluuebunny/crossref_metadata_2025 huggingface dataset:
Full Exploitation of Lightweight Design Potentials by Generating Pronounced Compressive Residual Stress Fields with Hydraulic Autofrettage
Authors: Brünnet Horst , Bähre Dirk
Published: April 2014

Internally pressurized components in hydraulic systems are subjected to high mechanical stresses. In case of dynamic pressure profiles this may lead to fatigue and hence a limited lifetime. This is particularly the case for fuel injection systems in combustion engines. Components of diesel injection systems in automobiles are popular examples for these demands. They have to withstand pressures of 2,200 bar and higher for at least 250,000 km. The increasing usage of high-strength materials and higher wall thicknesses will lead to a dead end as the weight and the complex manufacturing will tie up costs and resources. Autofrettage is a manufacturing process with high potential for the lightweight design of highly stressed hydraulic components. By considering the same wall thickness and applying optimal parameters, the fatigue strength may be increased by a factor of 3.5. If transferred to lightweight concepts wall thickness reductions as well as cost and resource savings by more than 45 % may be realized. However, from the manufacturing perspective the Autofrettage process poses some challenges. This paper presents results from Finite Element simulations and experiments and discusses the interaction between manufacturing processes with respect to residual stresses and deformations. The scientific findings may be used to tear down barriers in the application of Autofrettage and to optimize process chain layouts. It also serves to make a significant contribution to weight reduction in car manufacturing and other high performance hydraulic applications.
Abbreviations: AF : Autofrettage; AFM : Abrasive Flow Machining; ECM : Electro-Chemical Machining; FEA : Finite Element Analysis; K-ratio : outer to inner radius ratio; L = length of the cylinder (mm); pAF : Autofrettage pressure (bar); pWP : working pressure (bar); piY : pressure to initiate yielding at the bore (bar); Ra : roughness average (μm); Rz : average maximum height of the roughness profile (μm); RPM : Revolutions Per Minute (1/min.); ri : inner radius (mm); ro : outer radius (mm); ρ : density (kg/dm3); σVM : von Mises equivalent stress (MPa); σy : yield stress (MPa); σt : tensile stress (MPa); σY : yield strength (MPa); SF : Safety Factor;
Microstructuring of Surfaces for Bio-Medical Applications
Authors: Brinksmeier Ekkard , Riemer Oltmann , Schönemann Lars , Zheng H. , Böhmermann Florian
Published: April 2014

In recent years microfluidic devices became of great interest, as they offer a wide range of bio-analytical and fluid processing applications through the utilization of size effects. Especially a mass manufacturing of disposable polymeric microfluidic devices by hot embossing or injection molding is expected to have high economic potential. It is known, that channels and areas showing a localized change in wettability can considerably improve fluid processing tasks like mixing or droplet generation. Chemical approaches, like the polymerization of lauryl acrylate, were successfully shown to achieve hydrophobic coatings for micro channels but are not suitable for a mass manufacturing. Since microstructures are known to provide water repellent properties of surfaces, this paper focuses on the applicability of diamond grooving and Diamond Micro Chiseling (DMC) processes for the manufacture of microstructured areas in brass molds inserts, in order to achieve hydrophobic properties of their replica. Major design features of structures, like a height range of 6 to 16μm or aspect ratios in between 0.5 and 3.2 are derived from the natural example of the lotus leaf. Molding is carried out by using a two component silicone filler. The performance of the replicated hydrophobic surfaces is evaluated by droplet contact angle measurements. After presenting methodology and results, the paper will conclude on how to transfer the investigated microstructuring methods to the manufacture of mold inserts for the replication of polymeric microfluidic chips with localized hydrophobic areas and channels.
Flexible Automation for the Production of Stators and Rotors of Electric Vehicles
Authors: Risch Florian , Tremel Jan , Klier Tobias , Franke Jörg
Published: April 2014

The increasing electrification of the drive train will - sooner or later - lead to significant changes in the value chains for vehicle manufacturers and suppliers, while sales potentials are still uncertain. Due to the currently small number and high diversity of industrial electric motors with higher power and the complex handling of the necessary materials, the processes are based on manual labor content. For the automotive industry high volume production concepts for electric traction motors will be required in the future. Thus, the importance of automated assembly and manufacturing technologies for electric motors moves into focus. In the production of electric motors e.g. the wiring processes of the stators and the magnet assemblies for permanent-magnet synchronous rotors show potential for further process rationalization. This paper presents alternative approaches for the automation of wiring and magnet assembly processes developed at the Institute for Factory Automation and Production Systems (FAPS) at the Friedrich-Alexander-University of Erlangen-Nuremberg.
Strategic Fit: Overview of Cost, Quality and Scalability Impact on the Added Value Network in Electric Engine Production
Authors: Kampker Achim , Burggräf Peter , Nee Carsten
Published: April 2014

Electric vehicles are in direct competition with conventionally powered cars. However, high prices currently result in a moderate acceptance and low market penetration. Producing companies have to attain new competencies in electric vehicle production as well as develop existing competencies at an early stage to be able to create attractive products for the customer. Requirements for costs, quality and scalability can be met due to purpose design, integrated product and process development, modularization of machinery and intense process know-how along with continuous consideration of alternative production processes. Nevertheless, designing new value added networks with a strategic fit among all participants remains to be done.
The Ecological Footprint on Product Level in Machining – From the Conceptional Methodology to the Industrial Application
Authors: Klocke Fritz , Döbbeler Benjamin , Binder Marvin , Lung Dieter
Published: April 2014

In line with the striving for a more sustainable orientation in manufacturing systems and industrial pursuit of resource efficiency, companies are looking for efficient processes. The consumption of electrical energy and other resources during the manufacturing phase is considered by the ecological footprint. This study offers a conception for the determination of the ecological footprint within manufacturing systems based on life cycle assessments. The existence of basic data is a requirement for such an evaluation. Therefore, a holistic measurement system is presented which is adaptable to small as well as large scaled production environments and different usage scenarios, e.g. full scale measurement or detailed process analysis.
Development of a Numerical Method for Prediction of Wear on Shear Cutting Tools
Authors: Liewald Mathias , Gall Marcel , Hank Rainer
Published: April 2014

The shape of cutting edge and cutting geometry changes in tool life due to wear. These geometrical changes of the tool are leading to non acceptable deviations from the demanded target geometry and a loss of cutting surface quality. Consequently the tool has to be inspected at regular intervals and be replaced or grinded if necessary. Prediction of such inspection intervals emerge as one of the challenges for an effective production. The inspection interval is dependent on tool life, which can be determined by cost intensive and elaborate experiments. Determination of a database containing tool life data for different production conditions actually lead to excessive waste of material and energy. Due to this fact, this paper presents a new procedure to predict the wear behavior of shear cutting tools based on a modified Archard wear model linked with finite element analysis (FEA). The Archard equation requires an empirical adjustment factor K. The intention of this paper is to highlight a potential approach to determine this coefficient without conducting long lasting tool life tests. A design method oriented approach in this paper is leading to a procedure to be able to determine wear coefficient using a chip cutting process. Though this adjustment can be accomplished within a few hours (time required for tool life test normally needs 14 days or more) with a material usage of only 0.5 % of the required sheet metal material compared to corresponding shear cutting tests. In future practitioners might look for accurate prognosis of amount of tool wear in order to reduce machine downtime and discarded parts significantly what finally saves energy, time and material.
Research on Intelligent System for Cavity Filter Tuning
Authors: Xu Shi Min , Yu Hong Bing , Qiao Ya , Chu Fei Huang
Published: April 2014

Microwave filters are applied widely. It cannot only reduce workers working hours,but also increase productivity effect if intelligent computer-aided tuning techniques are introduced in large volume production. An intelligent platform is designed and realized for cavity filter tuning in this paper. This platform extracts the parameter of filter and then controls motor to adjust the filter parameter automatically. The results have shown that the research in computer-aided tuning techniques is much of realistic meaning.
The Robust NN Control and Fast Vibration Suppression of Space Flexible Manipulator with Unknown Parameters
Authors: Hong Zhao Bin , Li Wen Wang , Chen Shui Xuan
Published: April 2014

To solve the problem of space flexible manipulator to track the desired trajectory, the robust control is proposed using a NN function to approach the comprehensive modeling errors. The adaptive feedback control for vibration suppression is designed of the system with unknown parameters. The adaptive laws are obtained by Lyapunov method without any prior knowledge about the bounds of unknown parameters. Finally, the numerical simulation is carried out, which proves the controller proposed is feasible and effective.
The Structure Design of Parent-Subsidiary Wind Sailing Boat and the Matching Research of Power Plant
Authors: Zou Yin Cai , Zheng Wei Gang
Published: April 2014

Wind sailing boat fades out maritime transport industry gradually, because of its existence decreases the ship stability, and threatens mariners and ships security vastly. Project group has worked out high stability and security ship through researching literature and emulation-technique. Through the design of a parent ship and a sub-shipa set of wind sailing system and a water supply and drainage system, and the modeling calculation and analysis about the thrust of the fixed pitch propeller matching with the sailing, we can conclude that the added sub-ships can enhance ships stability in constant speed sailing situation. So it can improve thrust and reduce fuel consumption through increasing the scale of wind sailing.
Application of Finite Element Analysis on Lightweight Design to Coaches
Authors: Yan Chao
Published: April 2014

A finite element model of a coach is created by HYPERMESH software. Then finite element analysis is carried out using OPTISTRUCT software for the coach structure. Based on the analysis results, the lightweight structure is designed under the guaranty of operation stiffness and strength. Finally the rollover analysis and optimization design to the lightweight structure are carried out to ensure the rollover safety of the strength for the superstructure of coaches.
A Class of Uncertain Networked Control Systems with Robust H∞ Fault-Tolerant
Authors: Zhu Li Ming , Zhu Zong Da , Yan Yong Gang
Published: April 2014

T For the networked control system (NCS), the considered system has actuator and sensor failures. In considering the impact of the network delay on system performance, establish a new class of uncertain NCS fault model Then use Lyapunov stability theory, fault-tolerant control theory and the static state feedback, the sufficient conditions for closed-loop NCS possessing robust asymptotically stable against actuator and sensor failure are given . And the robust H-inf fault-tolerant controller design method under the sensor and actuator failures is deduced in terms of linear matrix inequalities (LMI). An numerical simulation is provided to show the effectiveness of the proposed conclusion.
A New Algorithm of Image Registration Based on Contour Feature
Authors: Song Fu Hua , Li Peng Hui , Deng Jian Ran
Published: April 2014

Image registration is an important task in image processing. In this paper, a new and fast contour-based image registration algorithm is proposed. In this algorithm, we fetch contour points and calculate the normal angles firstly, then figure out the histogram of the contour-feature points. By computing circular correlation of the histogram, the rotation angle can be gained. As the rotation angle is obtained, it vastly simplifies the complexity of estimating other registration parameters and reduces the calculated amount, thus achieving a fast image registration algorithm. This algorithm has the invariance of rotation, translation and scale, and it has high robustness for either open contour or closed contour.
A New Design of P-Code Direct Acquisition Module
Authors: Zhao Rui , Wang Yan Wen , Wang Zhi Jie
Published: April 2014

A new design of P-code Direct Acquisition Module based on segmented coherent accumulate at frequency field is provided in this article. Firstly, the implementation of P code acquisition system is given. Subsequently, according to specific application environment navigation terminal, the expressions of capture system detection probability and mean acquisition time are deduced. Research has shown that this P-code direct acquisition module can be adapted to a low signal to noise ratio high dynamic environments.
A Non-Probabilistic Measure of Structural Reliability Based on Convex Model
Authors: Qiao Xin Zhou
Published: April 2014

The problem of the non-probabilistic reliability is investigated in this paper, in which the convex model is used to deal with uncertainties in structural analysis and design. The limitation on the current non-probabilistic reliability is discussed. Then a novel non-probabilistic reliability model is proposed, and its computational procedure is given. Two numerical examples are conducted to illustrate the feasibility and validity of the proposed non-probabilistic reliability model.
A Way of Angel Measurement for Virtual Axis
Authors: Zhang Yun , Xia Yuan Meng
Published: April 2014

This text according to the special structure and TOFRAME function for Parallel tool machine, investigate a kind of method that measure the maximum angle in virtual axis quickly, and pass an actual engineering application to practice, can be accurate to measure each angle of axis fixed position error margin quickly.
Access Control & Temperature and Humidity Systems Based on Distributed Parallel Processing
Authors: Wang Xun , Zhang Ling Hua , Xu Yuan Wu
Published: April 2014

Smart home includes an access control system, temperature and humidity system etc. Each system includes different terminals and each terminal is equipped with different sensors. Sensor senses its surroundings and generates enormous amounts of data. With the increasing number of users, it will generate vast amounts of data. As the traditional method of massive data processing has shortcomings of high cost in hardware and has developed to a bottleneck of calculation, a data processing platform based on distributed parallel processing is intended for the access control system, temperature and humidity system. It effectively solves problems in cost and bottleneck of calculation.
AIS in the Application of the Navigation System
Authors: Liu Cong , Dai Li , Zhang Ming Yang
Published: April 2014

at present, AIS is equipped on more and more ships. AIS has important significance in navigation and collision avoidance, and VTS, rescue, search, the pilot and so on various aspects. In this paper, the principle of beacon AIS were summarized, and we analyzed the AIS has significance as a auxiliary navigation equipment
Analysis of Infrared Sensors to Monitor the Flow of Vessels
Authors: Liu Cong , Dai Li , Zhang Ming Yang
Published: April 2014

the infrared sensor is a kind of phenomenon based on optical principle, because of the characteristics of the infrared transmission speed, in this paper, based on the characteristics of infrared system,we introduce the principle of infrared induction and the calculation method of channel share.
Binary Image Information Hiding Based on Research Gui Review
Authors: Li Su Ying
Published: April 2014

Binary image storage is simple, compact structure makes the entropy of the unique advantages of the binary image data fax, text, barcode recognition and digital signatures have been widely used, it is precisely because of this feature makes color, grayscale image information hiding technology can not be directly applied to the binary image information hiding. Summary provides an overview of some recent study based on the results of the binary image, and hidden capacity and robustness study based on the results of these and other issues made a brief comparison and discussion.
Corporate OA System Design
Authors: Huang Ke Wang , Liu Gui Feng , Yan Hui Qin
Published: April 2014

This paper introduces OA system which is designed to improve working efficiency/quality, and shorten working period, thus helpful for scientific management, resources sharing, information exchange and decision-making. This system includes network version and mobile version.
Design and Realization of Gateway Node for the Smart Home System Based on Internet of Things
Authors: Lao Fei , Li Guo Xin
Published: April 2014

The paper introduces the design and realization of gateway node for the smart home system based on Internet of Things. With the development of smart home based on internet , the gateway node as an important part has become a hot issue in the present study. The paper describes the functions,analusis the hardwares constitutions and softwares design. At last,it points the main problems and the developing direction.
Design of Detection System for Eccentric C/O Logging Tool
Authors: He Wei Wei , Yang Jan Feng , Sun Liang , Han Zhi You , Feng Rui Shu , Li Yu Chun , Xu Quan , Liu Yan Ling
Published: April 2014

To improve the vertical resolution and statistical accuracy of C/O logging, a new structure of the logging tool is proposed. In the processing of logging, the tool is set close to the inner wall of the casing by the sidewall contact device, and the shield between the two detectors and borehole fluids is employed, it makes both the detectors chiefly collect formation information. Based on the program above, the detection system and the sidewall contact device are processed and assembled with DDCO-III C/O logging tool. The simulative well experiment results show that the eccentric C/O logging tool has less borehole effect, higher logging sensitivity and better formation distinguishing ability.
Development and Research Status of Marine Radar
Authors: Zhang Ming Yang , Dai Li , Liu Cong
Published: April 2014

The Marine radar is essential electronic equipment for ship. Its performance is directly related to ship safety. By applying a variety of new systems and new technology, Reliability of radar equipments has been effectively improved. Marine radar will gradually develop into solid-state radar with multiple frequencies. At the same time, this paper also introduces the working principle and structure of solid-state radar.
Educational Resources Cloud Platform Based on Hadoop
Authors: Hou Qing , Pan Lei , Xu Jia Xi , Zhou Kai
Published: April 2014

As the traditional educational resources platform exists some deficiencies in storage, parallel processing, and cost, we designed a cloud platform of educational resources based on Hadoop framework.The platform applied HDFS distributed file system to store massive data distributedly and applied MapReduce distributed programming framework to process data parallelly and scheduler resources, which solved the mass storage of resources and improved the efficiency of various resources retrieval.
Error Analysis and Research Based on EFPI Sensors
Authors: Dong Hai Bing
Published: April 2014

Low-coherence Extrinsic Fabry-Perot interferometric (EFPI) sensors have previously been demonstrated for varies measurements such as temperature, strain, diplacement, etc. In this paper we analysis the sensor error and give some advices to reduce the error.
Large Apparatus and Tele-Monitoring System Based on Embedded System
Authors: Zhang Zhi Ping , Jiang Chang Xu , Tang Rong Nian
Published: April 2014

Large-scale instrumentation equipment usually runs a long time, sometimes even runs all night long. If not arrange the laboratory staff guard it, when equipment fails, it can only be allowed to develop, and in severe cases can cause the large instrument and equipment damage; To address this issue, propose a large apparatus and tele-monitoring system based on embedded system and through the HD camera collects the status of the indicator lamps of the large instrument, and through the algorithms identification of the embedded system, and the JPEG encoding and control, and using GPRS module sends images to the experimenter's mobile phone to achieve the remote monitoring of equipment; And researchers can the control the system via mobile phone to send instructions to achieve the remote control.
Low-Cost Video Fast Recording and Network Self-Learning Platform
Authors: Li Chun Peng , Wang Hua
Published: April 2014

Abstract: The low-cost rapid recording not only improves the speed of record, but also gains an advantage of the market. It has important implications for exploring video recording. It provides resources for self-learning network platform. It can improve the quality of teaching. The development of the education sector has an important significance. The article explains the significance of the development of low-cost video recording and fast network self-learning platform. It analyzes the methods of low-cost video recording. Then we discuss the need for network analysis and self-learning platform functional planning. Self-learning network can identify shortcomings and make improvements.
Network Architecture and Functional Development of the Art Teaching Platform
Authors: Xiong Mei Ni
Published: April 2014

Web Based Instruction Support System has four main components: (1) Instruction management subsystem, (2) Instruction subsystem,(3)Web course developing tool,(4)Instruction resource management subsystem. The architecture and function of a web based instruction support system developed by our institute was introduced in detail in this paper.
Experimental Study of Mechanical Properties of Concrete after Freeze-Thaw Exposures
Authors: Fu Xiang Ping , Liu Xiao Xue , Sun Yi Ze , Huang Pei , Li Yu Chen , Shah Ravindra
Published: April 2014

The experiment studies how the freeze-thaw cycles influence concrete compressive strength and elasticity modulus with different water-cement ratio under the air-entraining agent and zero of that value respectively. It can be found that modulus of elasticity and compressive strength of the concrete specimen reduced significantly when there is air-entraining agent; the durability of freeze-thaw resistance, however, makes great improvement; as the cement increases, both of them improves effectively. Through the comparison of concrete compressive strength and elastic modulus with different water-cement ratio and air-entraining agent, the optimal water-cement ratio and air-entraining agent were determined. The results of experiment can be used in concrete engineering design in severe cold area.
Real Time Prediction Method of Sensor Output Time Series
Authors: Liu Zhi Cheng
Published: April 2014

In order to improve the real time prediction precision of sensor output time series, the predictable inner mechanism of time series is analyzed, and a method using wavelet filtering and neural network is proposed. Sensor output time series are first handled with wavelet filtering, and then predicted by neural network method. The proposed method can eliminate effect of measurement noise on prediction precision. Simulation experiment shows a higher prediction precision by the method. A new idea is given to increase prediction precision of sensor output time series by neural network-based methods.
Remote Sensing Image Classification Based on Object-Oriented Method and Support Vector Machine: A Case Study in Harbin City
Authors: Yang Qiu Xia , Luo Chuan Wen , Chen Tian Kai
Published: April 2014

Remote sensing classification, as an important means of urban planning and construction, has been widely concerned. Urban land use classification is extremely challenging tasks because of some land covers are spectrally too similar to be separated using only the spectral information of remote sensing image. Object-oriented remote sensing image classification method overcomes the drawbacks of traditional pixel-based classification method. It combines the spectral, special structure and texture features of the images, can effectively avoid the phenomenon of "different objects share the same spectrum" or "the same objects differ in spectrum. Support Vector Machine (SVM) is an excellent tool for remote sensing classification. Combination of both can develop their own advantages to do high-resolution remote sensing image classification. Using a public image in Harbin city as an example, classification based on object-oriented method and SVM has achieved better results than traditional pixel-based classification method.
Research and Application of Adaptive Assembly Methods
Authors: Shan Quan , Chen Yan
Published: April 2014

Based on the principle of association and parameter-driven, adaptive assembly method of Components and parts is presented. Firstly, assembled relationship is predefined in the system. Then assembled parts to be assembled, the pre-defined relationships are detected in assembly environment. Followed the assembly constraints and size are determined according to the pre-defined relationship. If the part assembly-dimension does not match the size, the assembly-dimension is automatically changed to match interface size. The adaptive assembly of parts and components is completed. Finally, the the above-mentioned functions is achieved via the secondary development of SolidWorks and prototype application example is given.
Research on the Algorithm for Parallel Computing Based on Lifting Wavelet Transform
Authors: Wang Xiang Shi
Published: April 2014

In this paper we proposed the new method of a lifting wavelet transform accoding to the characteristics of the parallel computing hardware units in practial application. We improved the mode of integer to construct a new 5/3 wavelet transform scheme .In order to validate the effectiveness of the proposed method applying the new method to the image and compare the result obtained using the traditional transform by the MSE evaluation. Experimental results show that the proposed method is superior and reducing the number of computations and the large capacity storage that restrict the implementation of algorithm for hardware.
Research on the Coupling Coefficient of the Wireless Power Transmission System
Authors: Liu Yi Cong
Published: April 2014

The simulation model of wireless power transmission system is based on the experimental model contained E-E-sized core. Analyzing the basic electro-magnetic relation of loosely coupled transformer in the WPT system ,and studying the principle of the energy method to calculate the inductances and coupling coefficient. Using the finite element simulation software to analyze the inductances and coupling coefficient of different air gap, transverse lateral distance and longitudinal lateral distance, finding the effect of the coupling coefficient by the above three situations, which provide a reference for improving the coupling coefficient and efficiency of the wireless power transmission system.
Robust Η∞ Fault-Tolerant for a Class of Networked Control System Based on Static Output Feedback
Authors: Wang Zi Ping
Published: April 2014

This paperfocuses on the networked control system (NCS) with sensor and actuatorfailures, considering the impact of the network delay and parameter uncertaintyon system performance, We propose a design of robust Η∞ fault-tolerant control based on static outputfeedback .The closed- loop networked control system possessing asymptoticallystable is given by staticoutput feedback, fault-tolerantcontrol theory and Lyapunov stability theory. Then the fault-tolerant controller is deduced by using linear matrixinequalities. Numerical simulation illustrates the method has a good robustfault tolerant capability that the conclusions are valid.
Speech Enhancement Based on Bionic Wavelet Transform and Correlation Denoising
Authors: Wu Li Ming , Li Yao Fei , Li Fu Jian , Luo Xin
Published: April 2014

A new speech enhancement method based on bionic wavelet transform is presented here. Voice signals with noise would be bionic wavelet coefficients by bionic wavelet transform, then, the purpose of speech enhancement can be achieved by means of the bionic wavelet coefficients based on the improved correlation function processing. The simulation results show that the method under the condition of various noises is good speech enhancement effect.
Keywords: Speech enhancement; BWT; Correlation de-noising
Speech Intelligibility Enhancement Using Distortion Control
Authors: Yang Yu Xiang , Ma Jian Fen
Published: April 2014

In order to improve the intelligibility of the noisy speech, a novel speech enhancement algorithm using distortion control is proposed. The reason why current speech enhancement algorithm cannot improve speech intelligibility is that these algorithms aim to minimize the overall distortion of the enhanced speech. However, different speech distortions make different contributions to the speech intelligibility. The distortion in excess of 6.02dB has the most detrimental effects on speech intelligibility. In the process of noise reduction, the type of speech distortion can be determined by signal distortion ratio. The distortion in excess of 6.02dB can be properly controlled via tuning the gain function of the speech enhancement algorithm. The experiment results show that the proposed algorithm can improve the intelligibility of the noisy speech considerably.
Study on Prediction Model of Dissolved Oxygen about Water Quality Monitoring System Based on BP Neural Network
Authors: Yan Jing Xin , Yu Li Juan , Mao Wen Wu , Cao Shou Qi
Published: April 2014

Eriocheir sinensis should cultivate in high water quality ponds, which is affected by many combined factors such as physics, chemistry, biology etc. Using the real-time water quality monitoring historical data to test one of the water quality indexes and predict this index in the next time has great significance. The dissolved oxygen is one of the most important indexes in aquaculture, such as in the Eriocheir sinensis pond. This paper established a dissolved oxygen prediction model of water quality monitoring system based on BP neural network. The forecast data which is predicted by the established model could fit the actual monitoring data very well.
Fabrication of Micropattern of Plastic Film Using Ultrasonic Micro Embossing
Authors: Cheng Hsin Chung , Huang Chiung Fang , Lin Yi , Shen Yung Kang
Published: April 2014

This study indicates the micropattern of molded plastic film from a mold insert using ultrasonic micro embossing. A mold insert and plastic film are heated above the glass transition temperature of plastic, and the softened plastic is flowed into the micropattern of a mold insert by applying pressure via a conventional technique. A longitudinal ultrasonic wave is added to the ultrasonic micro embossing process. The longitudinal ultrasonic wave generated by an ultrasonic system at a frequency of 35 KHz, has amplitude of 20 μm and output power of 900 W. The micropatterns of the Ni mold insert are groove-shaped and they are 2-μm wide and 200-nm deep. The Polypropylene (PP) is chosen as the replication materials. This study identifies the replication properties of the plastic film using different process parameters (working pressure, ultrasonic pressure, packing pressure, working time, ultrasonic time and packing time). Results of this study demonstrate that ultrasonic time is the most important process parameter for ultrasonic micro embossing.
Study on the Control of Fuzzy Sliding Mode Variable Structure of Aerospace Vehicle’s Attitude
Authors: Li Bin
Published: April 2014

Based on the nonlinear, strongly coupled and uncertain model of the aerocraft vehicles attitude system, a fuzzy variable structure control method is proposed. Based on the feedback-linearization technique, the system was firstly decoupled into three independent SISO subsystems, and then controllers for each subsystem were designed. Modeling error and unknown disturbance is effectively restrained with the proposed adaptive fuzzy control with variable structure control. Theoretical analysis and simulation results show that the proposed method has high control accuracy, high robust and easy realization.
Study on the Dynamic Quantitative Weighing System Based on the Buoyancy Weighing Sensor
Authors: Zhu Xia Qing
Published: April 2014

The dynamic quantitative weighing system based on the buoyancy weighing sensor is designed in this paper. At first the principle of the dynamic quantitative weighing system is analyzed and then the mathematical model is established. Secondly the hardware structure of the dynamic weighing system is designed. The buoyancy weighing sensor is introduced. The weighing system is composed of two parts: the buoyancy equalizer and the displacement sensor. Through the field tests, precision, stability and sensitivity of the device has been verified.
Formation of CaCO3 Superstructures in the Presence of Polyvinylpyrrolidone
Authors: Chen Yin Xia , Ji Xian Bing , Yang Li Jing
Published: April 2014

The crystallization of calcium carbonate was conducted by the reaction of calcium acetate with urea in the presence of polyvinylpyrrolidone (PVP). The morphology and polymorphism of these products were characterized with field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The results showed that hierarchical CaCO3spheres were prepared in the presence of PVP. Varying the amount of PVP can prominently regulate the aggregation and self-assembly process of calcium carbonate precursor formed in mixed solvent.
The Design of Theft and Fire Alarm Instrument for Intelligent Building
Authors: Pei Bei
Published: April 2014

The total control system and the sub control system are the part of anti-theft and fire alarm system, the main function of the system is acquisition, processing and alarm. The total control system can monitor the working state of the whole system, the sub control system uses a variety of sensors, in order to prevent false alarm, can collect fire and theft alarm signal and dial alarm according to the signal type automatic. Danger information transmission use the public telephone network, which has advantages of a transmission distance, fast response, simple structure, easy installation.
The Development of the Wireless Remote Control System for Warm Room Ills’s Ozone Control Machine
Authors: Lu Hong De
Published: April 2014

In order to meet the wireless remote control function for warm room illss ozone control machine, The wireless remote control system is developed. Wireless remote control system can make the staff implement the inside greenhouse environment monitoring easy need not to enter the warm room. Not only conducive the staff health, but also saves the manpower and material resources,satisfy the use requirement.
The Research and Design of Unattended Intelligent Substation of Safety Monitoring System
Authors: Wang Qi
Published: April 2014

This topic will be based on the characteristics of electric power facilities and computer systems, combined with the similarities between the power industry and power facilities, using the computer software, wireless sensor network and so on, to detect the various indicators of power equipment, including the temperature, degree of humidity on the tower, substation, etc., in order to achieve the real-time detection, alarm and other functions of the safety of power facilities in substation. Under the background of the power facilities having many advantages such as a great quantity, wide distribution and the rapid process of unattended. After the failure of power facilities , it will be helpful to find out the exact point of failure quickly, to restore power as quickly as possible. It has great practical value.
The Research of Smart Home Control Systems Based on Voice Activated Technology
Authors: Yu Ting Ting , Jiang Sen Lin
Published: April 2014

This paper first describes the defects of operation terminal in smart home, Then the feasibility that voice activated technology is applied in the operation terminal of smart home is proposed,and the lack that voice activated technology is applied in the operation terminal of smart home is researched, Finally, a method is proposed to improve the voice activated technologyapplied in smart home.
Applying Digital Image Correlation Techniques to Measure the Crack Variation of Steel Plate under Tension
Authors: Sung Wen Pei , Shih Ming Hsiang , Chang Hung Chang
Published: April 2014

Water gate is one of important equipments for arbitrating water supply and maintaining safety of dam. Water gate is made of high tensile strength of steel plate, this kind of steel plate used as constructional material of water gate is weighed for the economical consideration. Steel plate must be cut, welded and rivet to manufacture water gate. Thus, there are some crevices, induced by the defects of material, bad construction, seismic excitation and errors of size, on water gate. This phenomena causes stress concentration, induced high crack increase rate, affect the safety and usage of water gate. In this research, digital image correlation method is developed to measure the mechanics behavior of single steel plate and bi-steel plate with crevices under tension force according to the characteristics of water gate filed test. The test and analysis results of laboratory test reveal that this digital image correlation method can easily indentify the corrosion point on the steel plate. Otherwise, the crack variation of crack tip of steel plate-single steel plate and bi-material steel plate under loadings can be easily identified by the laboratory test.
Heat Pump Remote Monitoring System Design Based on PLC and Messaging to Communicate with GSM
Authors: Yang Jun Hong
Published: April 2014

In combination with the practical application of heat pump units, designed a heat pump PLC remote monitoring system based on SMS communication with GSM. The system can be monitored through the heat pump running, reduce equipment unsupervised time, to provide users with effective operational management and maintenance; While also providing an effective means of operating data and the real-time observation of optimizing the fault diagnosis of the pump and so on.
Aquatic Logistics Model Based on Supply Chain Management
Authors: Wang Han Bin
Published: April 2014

Food logistics is a modern logistics system in highly specialized sectors of logistics. The logistics industry has distinctive characteristics. According to the characteristics of modern aquatic logistics, good work is associated with people's livelihood. Products logistics model basically remain in the traditional areas. From the status quo of China's logistics model, through the status of products logistics development research, analyzes the main problems exist in China's aquatic products logistics model. It was constructed based on supply chain management, logistics model supply chain management.
Grinding Aids for Steel Slag and the Application
Authors: Sun Ying Lei , Zhao Feng Qing , Chu Xiao Meng
Published: April 2014

Steel slag has been widely used in the building materials industry. Grinding aid contribute much in this process which can save energy and reduce emission. This paper summarizes the major classes, function and research progress of grinding aids. Various kinds of grinding aids were discussed. Some problems concerning the application and developing trends of grinding aids were put forward.
Design of Handling Bad Geology in the Yanjiang River Road of Hangzhou City
Authors: Shu Xiao Jian
Published: April 2014

In recent years, with the development of construction industry in our country, the Zhejiang highway and city road mileage grows rapidly, playing a great role in promoting the development of economy. However, local sections in after the opening because of bad foundation treatment, leading to the traffic road surface subsidence, surface cracking phenomenon, caused the adverse effects on the ground transportation and increased the cost of maintenance. This project is based on the special position of the Qian Tang River in Hangzhou, analyzing different sections of the foundation treatment in different ways, to find a balance between the foundation treatment effect and economic benefit.
Digital Three-Dimensional Labeling System of Product Design Information Based on MBD
Authors: Cao Yan , Gao Ni Ping , Fang Zhou
Published: April 2014

MBD (Model Based Definition) technology is the development trend of digital design and manufacture. Design information includes geometric elements, annotations and process attributes. In the paper, the focus is concentrated on digital three-dimensional (3D) labeling of annotations. The 3D labeling system of product design information is seamlessly integrated with NX platform to define digital information of a 3D product model. The Key technologies of the 3D labeling system realization on NX platform mainly includes transformation of space coordinates, reference plane construction based on solid modeling and 3D dimensioning. NX internal program mode is adopted where the developed program is compiled and linked to generate the dll file whose codes are small and whose connection speed is fast. Integrated digital definition of a 3D model shortens product development cycle and improves product design and manufacturing efficiency.
Grouting Material Mix Proportion Test Research of Void the Old Cement Concrete Pavement Slab
Authors: Lv Da Wei , Xu Guan Jun , Sun Xiao Li
Published: April 2014

The effective treatment of void cement concrete pavement slab through grouting technology is the important premise of ensuring the service performance of asphalt overlay engineer on cement concrete pavement. Based on the current problems of grouting technology, we did experimental studies on the mixing proportion of grout slurry and analyzed the effects of slurry composition and admixture type on mechanical properties including the strength, mobility, viscosity, expansion rate and bleeding rate of the slurry and on the service performance. Based on these, we put forward the control indexes for grouting slurry mix proportion determination which provided guidance for the design and construction quality control of grouting under the old cement concrete pavement slab.
Experimental Study on the Influence of Temperature and Confined Load on the Creep Characteristics of Geogrid
Authors: Zhang Zhen
Published: April 2014

This paper describes a new testing equipment developed to perform geogrid creep tests under confined load and in different temperatures simultaneously, and the confined load and temperature factors’ influence on the creep characteristics of geogrid was researched systemically , then the tests data was dealt by correlation analysis.The results shows that :the influence of confined load on geogrid creep is very significant, creep tests under no confined load will produce conservative results .The influence of confined load is weaker than the influence of temperature factor. The both two factors must be considered in geogrid creep tests .
Method of Secondary Logging Interpretation of Heterogeneous Reservoirs in the Huan 26 Block, Liaohe Huanxiling Oilfield
Authors: Shi Chun Rui , Wang Yan Chun , Wu Dan
Published: April 2014

The reservoir units in Liaohe oilfield showed strong heterogeneities. A process of log normalization and a set of logging interpretation models appropriate to the reservoir bed characters of this section were established based on the first logging interpretation results and the core analysis. After normalization of all log curves, and according to the interpretation models that have been established, the secondary logging interpretation was applied in the study area and the interpretation models were proved to be feasible and reliable by the application of the first logging interpretation results and the core analysis. The method can not only provide instruction for further reserves calculation and geological modeling, but also be a foundation for numerical simulation.
Parameter Estimation for Lomax Distribution under Type II Censoring
Authors: Yang Min , Wei Cheng Dong , Fan Qing Zhu
Published: April 2014

In this paper, The problem of estimating unknown paramaters of Lomax distribution is considered under the assumption that samples are type-II censoring. The maximum likelihood estimates are developed for unknown paramaters using EM algorithm and NR method. We obtain the observed Fisher information matrix using the missing information principle . A numerical study is performed to compare the proposed estimate.
Possibility of Reverse Engineering in Low-Cost Terms
Authors: Novak-Marcincin Jozef , Torok Jozef , Szentivanyi Patrik
Published: April 2014

The spatial digitization is becoming more popular in last few years due the fact that 3D scanners nowdays are not limited only for transforming of relative small models into virtual computing environment. In trend are devices suitable to digitize in single process human body, parts of car or house and also much larger areas. In general, these devices are burdened by excessive high acquisition costs and need additional software which often exceeds half of the price of a device. This contribution highlights few cost affordable alternatives thanks to which, with certain restrictions, can practically individual what expert with Hi-Tech equipment. In the in the following parts the text briefly describes the principle of no contact digitization of solids using a software application David and additional processing in a freeware software MeshLab for their further use.
Research of China's Sports Industry Management
Authors: Ma Jin Hong
Published: April 2014

understand the concept of sports industry and sports industry development in China, using the method of "SWOT", to develop a growth strategy, and puts forward, to further improve the sports industry policy support from the government, games sports countermeasures, such as to achieve the development of China's sports industry, nice and fast.
Research on Construction Reliability Calculation Method of Engineering Project
Authors: Shi Yu Fang , Wang Xiu Fen
Published: April 2014

System reliability theory is becoming a focus of international management science and system engineering research, though specific studies are still at a starting stage in the field of engineering project management. According to objective system of engineering project, the connotation of construction reliability is defined and based on principle of network reliability, a method of disjointed minimal paths set is proposed and the symbol expression formula is given to calculate construction reliability. This method is proved efficient and accurate by an example and useful try on theory and method research of engineering project system reliability is made.