bluuebunny/crossref_metadata_2025 huggingface dataset:
The Integrated Equipment of its Application and Prospects in Wastewater Treatment - Taking Rural Areas in Yunnang Province for Instance
Authors: Li Chi Hao , Shi Yong Sheng , Guan Qing Qing , Zhu You Li
Published: December 2014

For the vast rural areas in our province with complex terrain, the centralized sewerage facilities are backward, but the integrated equipments in wastewater treatment can be effectively applied to these places. As a decentralized wastewater treatment technologies, the use of the integrated equipment in wastewater treatment is more and more wide. The technology of itself is also becoming more complete. This paper concludes and summarizes the technological developments and applications of the integrated equipment in wastewater treatment from abrod to home,from single to complicate, analyses the shortages of the integrated equipments in wastewater treatment;and introduces the development of the integrated equipments in wastewater treatment.
The Starting Behavior Analysis of a Micro Horizontal Axis Wind Turbine
Authors: Wang Zhi Kui , Chen Yi Bao , Tsai Gwo Chung
Published: December 2014

The wind turbines have gained a wide range of applications in Renewable Energy Sources (RES) by virtue of its dominant advantages, and it has achieved almost the state-of-the-art from the engineering point of view. Nevertheless, the starting behavior which plays a prominent role in wind power generation has achieved few studies up to this moment. We conducted this analysis of a micro horizontal axis wind turbine (MHAWT) on its starting behavior to give insight into its start-up torque as well as its start-up speed on an assumption that it is rigid body, and some relative simplification on its structure are adopted meanwhile. The wind turbine's power coefficient CP, tip-speed-ratio l along with torque coefficient CTwere taken into consideration and discussed to a large extent in order to having a relative clear cognition of its operational characteristics.
Value Chain Analysis for Microalgae-Based CO2 Capture: A Case Study
Authors: Ouyang Chao , Chen Hsiao Wei
Published: December 2014

This primary goal of this study is to facilitate robust strategic decision- making regarding current and future deployment of microalgae-based CO2 capture technology. Based on Porter’s value-chain theory, a chain of activities that are common to all businesses are divided into primary and support activities. This study then attempts designs a microalgae-based CO2 capture value-chain model. This model shows that value drivers of microalgae-based CO2 capture, benefit markedly economic development. According to this value-chain model, one can choose a suitable strategy that to increases economic value. The microalgae-based CO2 capture value chain is a practical task in the development of microalgae-based CO2 capture technologies for thermal power plants. This value- chain model will guide investments and inform deployment decisions for microalgae-based CO2 capture technologies.
The Integration and Development of Network Information System Based on WEB
Authors: He Tong Hui
Published: December 2014

in the dozen years after entering the new century, the country's industrial development has made great progress, in such a rapid progress, the development and utilization of energy has played a pivotal role, in which the momentum of development of coal industry goes far beyond the previously expected. The development and utilization of coal resources in China not only has wide use range, some advanced developed countries in the world is also an important research topic. In this, has a mission is the focus of these studies, which is based on WEB network management information integration and development of coal resources, to ensure safety system. In this paper, we will now discuss the fierce based on WEB network management information system of coal resources for research.
Data Detection, Tracking and Sentiment Analysis Based on Micro-Blog Data
Authors: Zhou Xue Mei , Liu Yi Zhe
Published: December 2014

With development of information technology and network technique, as information media micro-blog becomes more and more important. Micro-blog is noted for preeminent simple, convenient and interactivity. However with the help of micro-blog, fake information is rampant increasingly. The public opinion analysis of micro-blog data allows of no delay. This paper explicates the features of micro-blog text, and then describes text information extraction technology such as top detection, tracking in detail. The outcomes of information extraction can inform government department spot of internet public opinion in real time.
Design of Intelligent System of Check on Work Attendance
Authors: Liu De Yong
Published: December 2014

The paper detailed expounds the intelligent attendance system, the design method,the purpose of the software process and can achieve results. The intelligentattendance system adopts the light emitting diode and photodiode photoelectricsensor circuit, complete student number recognition, by AT89S52 single chipmicrocomputer as the core, memory chip and display circuit constitute the mainpart of the system. The paper presents a smart attendance system hardwarecircuit design and software design flow chart.
Synthesizing Process of Prepared Ultrafine Alumina Powder by Ammonia Precipitation Method
Authors: Wang Liu Yan , Zhang Ning
Published: December 2014

In this paper, ultrafine alumina powder was prepared by Ammonia PrecipitationMethod used Al(NO3)3·9H2O as aluminum source. The effects of synthesizing temperature,compounds reaction time on phase formation,morphology particlesizes were investigated. The results shows thatγ-Al2O3 can be prepared at 900°C for 2h by the Al2O3 precursor using AmmoniaPrecipitation Method. And α-Al2O3 with stable crystal structure can be got at 1100°C for 2h.
Target Tracking by Fuzzy Algorithm Based on Adaptive Filtering with Current Statistical Model
Authors: Yin Xi Peng , Li You , Xia Lin Lin , Cheng Wei
Published: December 2014

A Fuzzy algorithm based onthe current statistical model adaptive filtering is brought. This algorithm avoidsthe need to set acceleration limit in advance in the original method（CSAF）, and the accelerationestimation value is determined by the weights of the acceleration in thetriangular membership function. This new algorithmimproves the performance of target tracking with the cost of a little calculation time, but the cost of calculation timeis so slightly that we can ignorethe effect of the real-time.
Aperiodic Solution Mathematical Model for Pest Management and Optimization Chemical Control
Authors: Guan Hong Jun
Published: December 2014

In view of the bestsolution of chemical control agricultural pests, we first build and analysisthe pest management model of spraying insecticide, the crop efficacy model and thedose model of the surrounding environment according to impulsive differentialequations. In view of the aperiodic solution model, we will find out theoptimal dose for the pesticides and time interval for sprayingby using optimal control theory, which can make the residue of the dose for thepesticides in crop and for the pesticide spraying the surroundings reach theminimum, make the number of pest under economic damage threshold at the sametime , and give the best solution to control agricultural pests by using the pesticides.At last, we explain the implementation of the scheme through the numericalsimulation.
CNC Online Monitoring System Based on Internet of Things
Authors: Gui Lin , Ruan Tian Yu , Wang Zai Zhen , Sun Ai Cheng , Xu Miao
Published: December 2014

With the development of modernization, how to implement the unified management and real-time monitoring becomes a key problem. With the requirements of Wuhan Heavy Duty Machine Tool Group Corporation, a CNC online monitoring system based on FANUC and Siemens system has been developed.
Management of Basic Mathematic Concepts for Cognition Diagnosis
Authors: Yih Jeng Ming
Published: December 2014

Knowledge Management of Mathematics Concepts was essential in educational environment. The purpose of this study is to provide an integrated method of fuzzy theory basis for individualized concept structure analysis. This method integrates Fuzzy Logic Model of Perception (FLMP) and Interpretive Structural Modeling (ISM). The combined algorithm could analyze individualized concepts structure based on the comparisons with concept structure of expert. The empirical data is Basic Mathematic test of Junior College students. The object of concept advanced interpretive structural modeling (CAISM) is to provide individualized hierarchy structure of knowledge of examinees based on response patterns of tests. It shows that knowledge structures will be feasible for remedial instruction and this procedure will also useful for cognition diagnosis.
Manage of Basic Nursing to Construct Knowledge Structure
Authors: Tseng Jui Chiao
Published: December 2014

This study is to provide an integrated method and algorithm for knowledge structure analysis and cognition diagnosis. Most researchers of educational measurement analyzed testing data from paper-pencil test by classical test theory (CTT) or interviewed with students in order to acquire students’ knowledge structures. Moreover, it is considered that knowledge structures are important for instruction. Information of knowledge structures is useful because it will be helpful for cognition diagnosis so that remedial instruction becomes feasible.
The Influence of N Content on the Microstructure and Mechanical Property of Low Cost Q345B
Authors: Xiong Xue Gang , Luo Xu , Ye Xiao Yu
Published: December 2014

Pangang Group developedproduction process of low cost medium-Ti Q345B. And the influence of N content on the precipitation of Ti wasresearched. Theoretically, the optimum N contentfor medium-Ti Q345B should be within 50ppm. Thenindustrial production of Q345B with two different N contents was carried out. The results implicated that the microstructure,yield strength and elongation of Q345B metthe requirements when N content waswithin 50ppm; and when N content wentbeyond 50ppm, trace of bainite microstructure appeared, theelongation was close to the lowerlimit, and microscale TiN were observed inlarge amout under SEM.
Mean Target Semi-Absolute Deviation Model for Portfolio Selection with Uncertain Returns
Authors: Yin Ming Qiang , Qian Wei Yi
Published: December 2014

This paper discusses theuncertain portfolio selection problem when security returns are hard to be wellreflected by historical data. The security returns are regarded as uncertainvariables. A target semi-absolute deviation risk measure is introduced. Basedon the concept of target semi-absolute deviation, a mean target semi-absolutedeviation model is proposed. In addition, thegravitation search algorithm is introduced to solvethe proposed model. Finally, a numerical example is given to illustratethe application of the proposed model.
Multi Objective Path Finding Based on Adding-Weight A* Algorithm
Authors: Wang Qiang , Wang Guan Cheng , Fei Fan , Lü Shuai
Published: December 2014

Multi-objective path planning is a path planning problem when there are more than one objective function to be optimized at the same time. This paper is based on traditional A* algorithm.To improve the algorithm A* and find out the shortest path in the different environments,we choose different weights and do global path planning by using improved evaluation function.We use the minimum binary heap in a linked list structure to manage the OPEN table,and the search efficiency has been improved.We compile the simulation program of path planning in the VC environment,then compare the operation time and generated paths by transforming the coordinates of the initial node and the goal node.Research shows that, the algorithm can improve the efficiency of the path planning efficiently.
QoS Routing Algorithm of WSN for Smart Distribution Grid
Authors: Sun Wei , Wang Jian Ping , Wang Jin Ling , Li Qi Yue , Mu Dao Ming
Published: December 2014

Recently, Wireless Sensor Network has drawn wide attention on collecting and communicating data for Smart Distribution Grid (SDG). In order to establish a routing system satisfying the latency and reliability requirements of smart distribution grid, a novel routing algorithm with layered cooperative processing and QoS Guarantee Control function is presented in this study. By researching link reliability and path delay estimation method, optimized latency and link quality routing decision method, and on-demand and priority-based buffer queue execution method, the end-to-end data transmission performance of WSN for SDG communication are optimized. The simulation results indicate that our routing protocol can provide QoS for SDG according to their requirements.
Research on Doppler and Channel Estimation for Multicarrier Spread Spectrum Underwater Acoustic Communication System
Authors: Wang Yuan , Zeng Zhou Mo , Li Yi Bo , Zhang Wen , Feng Hao
Published: December 2014

Spreadspectrum orthogonal frequency-division multiplexing (SS-OFDM), which appliesspread spectrum technique into OFDM, performs robustly in severely multipathfading underwater channels. However, this technology is sensitive to thefrequency shift. Furthermore, communication in underwater acoustic (UWA)channels is more vulnerable to Doppler effect than other wireless channels dueto the low speed of acoustic signal propagation. It presents challenges forcommunication between underwater mobile nodes. Therefore, accurate Dopplerfrequency shift estimation and compensation is important. Aself-designed receiver structure for SS-OFDM system including a novel Dopplerscale estimation method and channel estimation via compressed sensing method isproposed. The simulation and experimental results offer strong proofs for ourscheme to be a viable option for acoustic communication between underwatermobile nodes and compressed sensing method outperforms the conventionalleast-squares (LS) method in channel estimation.
Research on Multi-Frequency Weak Signal Detection Based on Adaptive Flexible Stochastic Resonance
Authors: Wei Fen , Lv Min , Wang Gang , Ren Bing Yin , Wen Xiao Xian
Published: December 2014

According to the problem that multi-frequency weak signal under the full frequency coverage constraint is hard to detect, this paper puts forward a detection method by adaptive flexible stochastic resonance. Based on frequency band decomposition of input signal, each function modules of flexible stochastic resonance system are configured for different frequency bands. Parameters including system structural parameters, frequency compression factor and frequency of modulation signal are optimized adaptively by genetic algorithm. Then each signal component distributed on each frequency band is processed by stochastic resonance effect to realize the enhancement of multiple weak features under the full frequency coverage constraint. Finally, through simulation analysis and an example of rolling bearing fault diagnosis, the effectiveness and comprehensiveness of this presented method in the detection of multi-frequency weak signal is verified.
Research on PTP Clock Synchronization in IP
Authors: Zou Hai Dong , Qian Liang
Published: December 2014

A certain delay jitter will impact the time synchronization accuracy of PTP system in the IP packet switched network. Look the network delay jitters as independently distributed random noise, and use the Least Mean Square (LMS) filter to filter out the noise, that will help to relieve the delay jitter on the system synchronization accuracy. The simulation results show that, by using the LMS algorithm, the research can increase the synchronization accuracy and decrease the bad impact on master and slave time synchronization of packet delay jitter.
Research on Vehicle Safety Driving Distance Based on Decision Making
Authors: Ji Liu
Published: December 2014

Security alarm algorithm is the key technology in the application of automotive active collision avoidance system, both at home and abroad are in-depth study. The main basis for security alarm is the distance between vehicles, when the distance between the two vehicles arrive at certain critical range, the alarm system will alarm, to remind the driver brake or deceleration. This paper mainly introduces the safety distance between vehicles of the problem, based on the research at home and abroad, is improved to make it more in line with the real traffic environment on the existing model.
RoadRank Algorithm – A Novel Method to Calculate Traffic Index for an Area
Authors: Wang Fan , Fang Yu
Published: December 2014

Traffic index hasbeen used to provide accurate traffic information to users. Many models havebeen developed to calculate the index for a road, but how to define andcalculate the index for an area still needs more investigation. Here we proposea new model for area index, including a definition of area index itself and a methodto calculate it. But this model can’t be widely used, for some innatelimitations. So we put forward another method based on well-known algorithmPageRank to calculate area index. To test the effectiveness, we apply ouralgorithmto conduct several experiments. Our experiments using standard trafficstatistics provided by ShanghaiTraffic Information Center (STIC), show our method have values for real-time traffic information system.
Study on Encryption Technology Concept and the Application of Encryption Method
Authors: Zhao De Fu
Published: December 2014

As the core technology of network security, encryption technology has great significance to the new era network development and application and making full use of encryption technology can ensure the security of critical data and effectively deal with a variety of network intrusion and attacks. While from the current development situation, basing on the complexity of encryption technology, we did not rationally make full use of the advantage of encryption technology. In fact, encryption technology is an invaluable safety tool that can ensure the security of sensitive information and easier than virus scanning and data backup procedures and has broad application space in future aspects like preventing leaks.
Summary of Data Reduction Based on Cloud Environment
Authors: Huang Shu Li
Published: December 2014

In today's era of big data, how to quickly find the data they need is a difficult thing from the mass of information, in order to achieve this goal, cloud computing to data mining technology provides a new direction, this article on how cloud environment attribute Reduction using data mining techniques are described.
The Application of WEB Services Technology in Research Management
Authors: Li Li , Gao Feng
Published: December 2014

This paper discusses the problem of sharing information technology in Research Information Management using WEB Services, Meanwhile a detailed description of the WEB Service Technology using in Management Information System.
The Construction of Logistics Information System Based on Computer Network Technology
Authors: Zhong Lian , Chen Hui
Published: December 2014

thedevelopment of modern logistics industry, has been unable to leave the support of computer network. This paperbriefly introduces the modern logistics and computer network technology relatedconcepts, analyzes the characteristics and results of information system ofmodern logistics, and discusses the construction of the security defensesystem, with a view to promoting to a certain function of the construction oflogistics information system based on computer network technology under.
Studies about Storing Distance Learning Technical Specifications XML Binging Documents Use RDBMS
Authors: Yang Jian Bo
Published: December 2014

With the rapid development of internet and information technology, XML has become the important standard for information exchange and denotation 011 the internet, thus that how to manage the XML document in an efficient, systematic and scientific way has become a great challenge in the field of databaseXML regarded as data interchange’s foundation has a lot of advantages，but regard it as the datum store way it has many disadvantages such as no efficient data structure and indexing structure，poor query ability．This paper recommend a new technology for the storage and management of XML dam，including the work that design of data schema，design the interface and implement it with．NET．Direct against the problem that what past XML file is stored and inquired，this paper have introduced the data schema in RDBMS the XML file emphatically, and introduced functions，the inquiry and statistics based on this data schema
A Novel Method to Extract Lip-Reading Features by Using LGEI and DWT
Authors: Zheng Li Guo , Zhu Mei Li , Wang Qing Qing
Published: December 2014

This paper proposes a novel algorithm used in extraction of lip feature extraction for to improved efficiency and robustness of lip-reading system. First, Lip Gray Energy Image (LGEI) is used to smooth noise, and improve noise resistance of the system. Second, Discrete Wavelet Analysis (DWT) is used to extract salient visual speech information from lip by decorrelating spectral information. Last, lip features are obtained by downsampling data from second step, the resample can effectively reduce the amount of computation. Experimental results show the performance of this method is exceedingly discriminative, accurate and computation efficient, the precision rate can rate 96%.
The Key Technology for the Implementation of Direct-Production of Radio-Frequency Based on SDR Platform
Authors: Zhang Chang Qiang
Published: December 2014

RFID (Radio Frequency Identification) has been playing an important role in the construction and development of Internet of things, for its status as the base and heart of Internet of things, and it also contains a huge market. But at present the judgment criteria and core products in the field of RFID are all tied down by other countries, those companies in our country who need to use RFID not only have to pay for an immense amount of patent royalties, but also have to be ready for the Information security risks at any time. In order to achieve the independent innovation of RFID and meet the RFID system developing demand in our country, there are some needs to do something to solve the problems related to key technology in RFID system, then to win ourselves the proprietary intellectual property rights and the standards system for radio frequency identification of our own.
Effect of Carbonization Temperature on the Elastic Modulus of Resin Carbon
Authors: Ma Tian Fei , Wang Xin Fu , Yang Feng Ling
Published: December 2014

Using the pulse excitation method, the elastic modulus of resin carbon was measured with different carbonization temperature. Micro structure of resin carbon was analyzed by XRD. Porosity, bulk density and true density of resin carbon was measured and calculated. The results show that the elastic modulus of resin carbon is 2.51GPa under 700°C carbonized, and is 2.92GPa under 1300°C carbonized. From 700°C to 1300°C, the elastic modulus of the resin carbon increases firstly and then decreases. The XRD analysis shows the crystal structure of resin carbon tends to regularization with the increase of carbonization temperature. The porosity of resin carbon is 14.% under 700°C carbonized, and is 13.38% under 1300°C carbonized. Considering XRD and porosity, the rise of elastic modulus of resin carbon from 700°C to 1000°C attributes to the incomplete pyrolysis of resin, reduction attributes to the graphitization of resin carbon from 1000°C to 1300°C.
Research on the Controllable Confidence Machine
Authors: Jiang Fang Chun , Tian Sheng Feng
Published: December 2014

Manageable confidence machine learning is one of the important approaches to implement confidence machine application. This paper is based on two class confidence classifier, adopting two class classifier as tool to convert learning results of classifiers and achieve confidence management through setting threshold values. The research accomplished manageable general accuracy of the classification and manageable positive/negative classification accuracy. Such method is tested in 5 experimental data sets of cardiopathy and diabetes, achieved preferable research result.
Study on the Safety Application of Public Key Cryptography in Electronic Commerce
Authors: Zhang Yu Zhong
Published: December 2014

With the progress of computer and communication technology, electronic commerce flourished. Security is a key problem in the development of electronic commerce. This paper discusses the principle of elliptic curve cryptography and its safety application in electronic transactions.
Vehicle Networking Data Analysis Based on Mapreduce
Authors: Huang Shu Li
Published: December 2014

The number of vehicles using the rapid development of today, in order to better monitor the vehicle and road traffic, must find the data they need from the vast amounts of data, thus providing a good way to find the target from the mass of data is very important. This paper presents a method and a method using mapreduce to verify the design is correct.
Vocational College Campus Network Terminal Access Control Scheme
Authors: Shan Jie , Yu Cui Yuan
Published: December 2014

With the development and application of campus network technology in vocational colleges,campus network security has become a major issue for end users and network managers face.Terminal access control as one of the important means of active network security management,by strengthening the active defense of the end user,ensure the enforcement of campus network security policy,realize the network management of campus network end users sophisticated controls,the effective protection of the campus network in higher vocational colleges to network security.
Seeded Region Growing Based on Extension for Multispectral MR Images Classification
Authors: Chang Yen Che , Kuo Kuei Ting , Wang Zih Yi , Wang Chuin Mu
Published: December 2014

In the past, doctors judged images based on their own medical knowledge. Nowadays, the digital image processing technology can alleviate the burden of judging a large amount of multispectral information and lead to more effective diagnosis of the pathological tissues. In this paper, we propose a new approach of seeded region growing based on extension (SRGBE) to classify tissues from brain MRI. Based on extension, we tried to strengthen the regional definition. First, we use seeded region growing (SRG) to segment brain images. Second, the SRGBE result is further classified by K-means. Finally, we compare the images of gray matter, white matter and cerebral spinal fluid produced by both approaches to demonstrate the performance of SRGBE.
Strategy Motion Control of Mobile Robots with Hybrid Drives According to Energy Recuperation
Authors: Ilyukhin Yu.V. , Tatarintseva A.V.
Published: December 2014

We solve the problem of choosing the speed of a mobile robot with ahybrid drive. Hybrid drive consists of an internal combustion engine and anelectric torque drive. We are interested in the modes, which provide the mostefficient process for energy recuperation. We present the mathematicaldependences that describe the process of energy recuperation. We offersuggestions on the choice of the speed of the robot, including taking intoaccount the limitations of current battery charge. It is necessary to note thatthese researches were financed by Ministry of Science of Russia Federationwithin the state task in the sphere of scientific activity
Discussion on Digital Technology in the Application and Innovation of Idustrial Electrical Automation
Authors: Yang Xiao Qing
Published: December 2014

along with our country economy and the development of technology,the technical development of industrial electrical automation is the irreversible trend. In this context, the digital technology emerge as the times require, is being used more and more widely in industrial electrical automation, play a decisive role in the development of China's industrial electrical automation. This paper expounds the necessity of the application of digital technology in the domestic and industrial electrical automation, analyzes the application value of digitaltechnology in the industrial electronic automation system, and discusses theinnovative application of digital technology in the industry of electrical automation.
Cold and Thermal Flow Field Analysis of Gasoline Engine Exhaust Port Based on CFD and RE
Authors: Han Dan , He Zhi Xia , Zhang Guo Jun , Wang Shuo , Wang Qian
Published: December 2014

Exhaust passage is a significant part of the gasoline engine, its structure will affects the gas flow characteristics of the engine directly [1]. So, research and analysis of the exhaust tract is essential. In this paper, a detailed analysis of the flow field under cold state and hot state was made. For a start, the method of laser scanning and UG software were used to reverse modeling engine exhaust port and get the three-dimensional model. The next, the unstructured grid with local mesh refinement scheme was used to mesh this three-dimensional model with ICEM. After this, numerical simulations of the exhaust passage with five different valve lifts were carried out under thermal and cold conditions. Finally, comparing the velocity field and pressure field of the exhaust passage under cold state and thermal state, it can be find that the flow field under hot and cold state have similar characteristics. The results of this paper can provide a theoretical basis for following researches of the engine exhaust port.
The Simulation and Optimization on Flow Field in Intake Port of Engine Based on RE and CFD
Authors: Han Dan , Wang Qian , Li Bing Huan , Zhang Guo Jun , Wang Shuo
Published: December 2014

Intake port is an important part of the gasoline engine, its structure will influence the gas flow characteristics which directly affects the performance of the engine [1]. In this paper, three-dimensional CFD calculation and structural optimization were used to research the performance of gasoline engine. Firstly, the method of laser scanning and UG software were used to reverse modeling engine exhaust port and get the three-dimensional model. Secondly, after setting boundary conditions and turbulence models, the air flowing through the intake ports were simulated by FLUENT software respectively. Finally, based on numerical methods, the pressure field, velocity field were shown. The results of the simulation of flow field characteristics analysis show that the simulation and experimental results are in good agreement.
A Kind of Experiment System Design of Stepping Motor
Authors: Han Jian Bing , Cai Jian Jun
Published: December 2014

Thispaper designs a set of experiment system for stepper motor, the control system ofstepping motor is composed of stepper controller, drive and stepper motor, withthe single chip processor as the stepper motor controller to realize the morecomplex stepper motor control function. This system has got good teachingeffect in experiment teaching.
Application of Maximum Entropy Model in Distribution of Vehicle Speed
Authors: Jiang Yi Bing , Gao Xu Nan , Han Ping
Published: December 2014

It’s very important for the traffic flow theory, the traffic management and control, and the programming and design of roads to master the law of speed. And the most intuitive form is the speed distribution to describe the law. Based on the maximum entropy principle, this paper proposes a model which can generate the speed distribution curves only with the observed date. And the availability of this method has been proved by the example analysis. The fact has also been found that fitting with maximum entropy distribution is better than with normal distribution in peak hour and is worse than it in off peak hour, but the difference is not great. This model does not need assumptions. Moreover it has a simple calculation and a strong practicability. So this paper makes a contribution to the study of the speed distribution.
Innovation Design of an Intelligent Percussion Device
Authors: Hsiao Hui Ling , Lin Yin Chi , Yang Shu Chen , Li Kuo Yi
Published: December 2014

Thisresearch pertains to an innovative design for an intelligent percussion device, which solves the problem of the lack of control overthe strength of the percussion force and the tapping frequency. A TRIZ methodis used in this research. Improving and worsening the parameters of thecontradiction matrix aid in finding available inventive principles andimplementing a systematic innovative design. The pressure sensor of theintelligent percussion device detects the force and the frequency, and adisplay device shows data on the force and frequency. A comparison database anda warning device achieve the function of remedy, so the percussion effect canbe promoted, resulting in a superior percussion-auxiliary device. The presentinvention is safe, accurate and convenient and can be applied to patients inhospital or to home care patients with sputum retention in the lungs andstudents who are learning the percussion skill, so the market demand is quitelarge.
Research and Design on Lithium Battery Management System in Communication Equipment
Authors: Kan Hong Lin , Xiao Ya Ping , Xu Yu Yun
Published: December 2014

As a communication system power, the lithium battery would be the trend of industry in the wake of development in battery technology. Communication systems have special requirement for lithium battery like low power consumption, high stability and data remote visibility. In this paper, a new type of lithium batteries management system is designed to fit the application of lithium batteries in the communication industry.
Research on New Energy Automatic Lighting Control System Based on the CAN-Bus
Authors: Xu Fei Long
Published: December 2014

With the continuousdevelopment of modern new energy technologies, Hyundai automation andincreasingly high degree of intelligence, automotive lighting control system isto ensure safe driving is an important part, in order to ensure the safety andconvenience of road lighting, reducing the driver's labor strength, appeared ona variety of new automotive lighting control system, commonly used in daytimerunning auto-dimming, automatic lighting system, the beam adjustment system,delay control. Applications CAN bus can not only simplify the wiring harness toachieve vehicle information sharing, reduce system cost, but also greatlyreduce the failure rate of vehicle lights, and extend lamp life.
Design of Cylindrical Metamaterial Invisible Cloak with Non-Singular Electromagnetic Tensors
Authors: Liu Ye , Li Zhu Ying , Yu Xiang , Cao Wen Kang
Published: December 2014

Based on line transformation, cylindrical metamaterial invisible cloak with non-singular electromagnetic tensors is designed. The results of simulation software based on finite element methods (FEM) show that the singularity in the electromagnetic tensors of the cloak has been eliminated, comparing with the cylindrical cloak with ideal tensors. From the simulation results, although there is electromagnetic perturbation in the free-space of the solution region, this cloak exhibits nice electromagnetic invisible performance. The bending wave front is clearly seen when the incoming wave transmits into the cloak region. Because of the non-singular electromagnetic tensors, the designed cloak may have more engineering application than the cloak with idea tensors.
Extracted from Actinidia Arguta of Wild Fructification Polyphenols Optimization Conditions
Authors: Yang Yu Hong , Kang Zong Li , Guo Rui Xin , Wang Hong Ling , Wang Zhuo , Wang Hao
Published: December 2014

We had studied using single factor and orthogonal experimental design method for extracted from actinidia arguta of wild fructification polyphenols conditions optimization, as actinidia arguta of wild raw material. The results showed that: extracted from actinidia arguta of wild fructification polyphenols optimization the best conditions is acetone solution of 30 percent, according to the solid-liquid ratio of 1:9, at 35°C, the extraction 30 min best, the amount of polyphenols extracted 763.8 mg / L.
A Study of Picosecond-Laser Drilling Technique in Ceramics
Authors: Hu Ying Lu , Bin Wang , Lu Bo , Cao Qian Tao , Yang Chao , Mo Xiu Ying , Sang Jin Zheng
Published: December 2014

In this paper, the technique of drilling process with picosecond(ps) laser is studiedinAl2O3 ceramics. The defocus method is used to drill the ceramic slice, which is able to improve thedrilling ratio of depth to diameter.It is found out that the best location ofthis ps-laser is about0.15mm under the lower surface of workpiece,demonstrating the difference from nanosecond(ns)-laser machinein the respective ofdefocusing.The impact of the power and the processing speed isinvestigated on the quality of the drilling. For ps-laser machine,a smaller and high qualitythrough-holeis achievable by increasing the power of laser and reducing the speed of process, withthe ratio of depth to diameter from 3.12 to 4.27.The ratio can be further increased upto 6.25,throughoptimization of these three parameters: defocusing amount, laser power and laser processing speed.
The Effect of Laser Processing Area on Nested-Circle Drilling Method
Authors: Hu Ying Lu , Bin Wang , Sun Jian Hua , Song Zhen Guo , Song Zhi Ming , Li Hong Wei , Fu Yan Xin
Published: December 2014

A laser drilling technique named the nested-circle method is introduced in this work, in the respect of short-pulse laser processing.it is found that, as the power increases, the depth to diameter ratio of the hole will increase and the minimum number of circles can be set drilled hole reliably is reduced. Further studies have been carried out on the effect of the number of circles in the nested-circle method. Keys of settings the nested-circle method parameters—Outer circle diameter ‘D1’, Inner circle diameter ‘D2’, The Number of circles ‘R’—have been found out.
Morphology and Crsytallization Control of Multifunctional GdPO4:Eu Nanostructures by Hydrothermal Preparation
Authors: Shao Bi Lin , Xu Xian Zhu , Liao Min , Wu Yan Li
Published: December 2014

Here, GdPO4:Eu3+ nanostructures with different morphology and size were successfully synthesized by a hydrothermal method and characterized by SEM ,XRD, PL and VSM . The results indicated that the morphology and crystallization strongly depended on the pH value of precursor solution as well as the surfactant and hydrothermal time. The photoluminescent and paramagnetic results showed the nanorods could be used as a promising nanoprobe for dual-modality with optical bioimaging and magnetic resonance imaging.
Evolution of Microstructure in Semi-Solid of Al-2wt%Si-0.5wt%Mg and Al-4wt%Si-05wt% Alloys during Isothermal Holding
Authors: Lourençato Luciano Augusto , Zoqui Eugênio José
Published: December 2014

Thixoforming technology has made considerable advances since its initial discovery in 1973. Although, after almost 40 years, few raw materials are still used as thixoforming materials. The Al-Si-Mg alloys often used for semi-solid state processing are notably casting alloys like A356 and A357. The development of new alloys specially tailored for thixoforming is a new challenge in this area of research. This paper will present some results related to the study of Al-2wt%Si-05wt%Mg and Al-4wt%Si-05wt%Mg alloy obtained via conventional foundry followed by ultra-refining. The results are compared with a commercial Al-7wt%Si-05wt%Mg alloy. Also presents its morphological evolution in the re-heating of the material to obtain the solid fraction of 45% and 60% in four different holding times 0, 30, 90 e 210 seconds. After re-heating, with the determination of grain size and globules, held the study Rheocast Quality Index (RQI) and Shape Factor (SF), parameter that helps to quantify the efficiency of the treatment globularization to obtain semi-solid structure with globular structure. The morphological evolution showed that the increase of holding time resulted in a minor increase in the globule size of the structure. The RQI values show that there is little morphological evolution in the treatment of globularization for alloys with percentage of Si, indicating alloys with percentage below of 4wt% Si is the most appropriate for thixoforming.
Influence of Aging Treatment on Microstructure and Properties of GH2132
Authors: Yang Chun Lin , Zhu Jie , Ou Mei Gui , Yang Zu Jian
Published: December 2014

Effect of Aging on microstructure and properties of GH2132 Alloy was studied. Experimental results show that a considerable number of sphericalγ′phase distributed uniformly under solution at 982°C solution for 1h and 718°C aging for 1h. The aging treatment made GH2132 obtain good mechanical properties.
Controlled Cooling of Rotary Furnace Shell
Authors: Lišuch Július , Dorčák Dušan
Published: December 2014

Heat losses through the shell of rotary furnace represent a significant share of total energy expenditure for the heat treatment processes of raw materials. Heat loss is currently not used in any way and escapes into the surroundings. Controlled cooling system of rotary furnace shell is a new solution integrated into the technological process aimed at reducing heat losses by the shell of furnace. The proposed solution is economically advantageous and operationally undemanding.
Analysis of the Significant Influence Factors of Spray Quenching Process
Authors: Yang Tie Xin , Cheng He Ming , Li Jian Yun , Zhou Si Qing , Dai Ji Feng
Published: December 2014

In order to study thecharacteristics of this new type of quenching process that is atomized waterspray quenching, this article analyzes the influence factors of atomized waterspray quenching based on the newly developed aerosol spray quenching experimentdevice. Based on 2 method, the two factors of water flow and nitrogen pressureare controllable, we analyzed the influences of the two factors of nitrogenpressure and water flow to the quenching cooling time. This paper induces andanalyses the experiment results and numerical calculation results[1]. The conclusions are: water flow is the main factor ofaffecting the quenching rate, the interaction of the nitrogen pressure andwater flow is significant: when the nitrogen pressure is low ,the water flow ishigh, the quenching cooling rate is guaranteed.
Effect of Hot Work on Hardness and Impact Toughness of Heat Treated Low Alloy Steels
Authors: Tash Mahmoud M. , Alkahtani Saleh A. , Abuhasel Khaled A.
Published: December 2014

The present study was undertaken to investigate the effect of hot work reduction ratio on the hardness and impact toughness of different grades of low alloy steels. The effect of hot rolling and hot forging with different reduction ratios on the hardness and impact toughness properties will be studied. An extensive study will be carried out to investigate the effect of alloying additions and TMT parameters on the hardness and impact toughness of heat-treated low alloy steels. An understanding of the combined effect of TMT and heat treatment on the hardness and impact toughness of the low alloy steels would help in selecting conditions required to achieve optimum mechanical properties and alloy high strength to weight ratio.
Microstructure and Mechanical Properties of a Low-Carbon Steel Treated by One-Step Quenching and Partitioning Process
Authors: Yan Shu , Liu Xiang Hua
Published: December 2014

A low carbon steel was treated by quenching and partitioning (Q&P) process, and a detailed characterization of the microstructural evolution and testing of mechanical properties were carried out. The resulted mechanical properties indicate that with the partitioning time increasing, the tensile strength decreases rapidly first and then remains stable, and the total elongation increases first then decreases. The investigated steel subjected to Q&P process exhibits excellent products of strength and elongation (17.8-20.6 GPa•%). The microstructural evolution of martensite matrix during the partitioning step was observed, and the morphology and content of retained austenite were characterized. The working hardening behavior of the samples was analyzed, and the retained austenite with higher carbon content contributes to the uniform elongation more effectively.
Solving Internal Forces of Piles of Jointless Bridges under the Action of Temperature Using Ordinary Differential Systems
Authors: Lv Dan , Zhao Da Jun , Li Long , Zheng Chuan Feng
Published: December 2014

Temperature effect has a great effect on the force and deformation of bridge abutments, piles and filling at back abutment of jointless bridges. It’s necessary to definitude calculation model when using the finite element method to analyze these matter, but there is still no scientific approach to design jointless bridges. A method that solving internal forces of piles of jointless bridges under the action of temperature using ordinary differential equations is advanced in this paper. Differential equation of each rod of jointless bridges is established based on material mechanic, and then all differential equations form a differential systems. The internal force and deformation of the bridge are getted by solving differential equations based on boundary conditions, deformation coordination of rod coupling points and internal force equilibrium conditions, which is clear and definite.
Verification of the Feasibility and Load Carrying Capacity of Models of Bored Concrete Piles
Authors: Burkovič Kamil , Fojtik Roman , Vaskova Jana , Buchta Vojtech
Published: December 2014

This paper explains load tests of models of bored concrete piles. In 2014 an experiment was carried out using testing equipment. The testing equipment was constructed at the Faculty of Civil Engineering, VSB – Technical University of Ostrava. The purpose of the experiment was to test the feasibility and load carrying capacity of bored concrete pile models. During the experiment two models of floating bored concrete piles were loaded. The heel of the first pilot was adjusted, in order to verify only surface friction. The second pile was used to verify side and base resistance. The results of these load tests will be further used for the preparation of calculations and experiments on mixed pile foundations.
Study of the Cracking Resistance Assessment of Concrete Based on the Anti-Cracking Safety Coefficient Method
Authors: Song Xue Feng , Li Chao , Fan Zhi Hong
Published: December 2014

This paper used the thermal stress test to get the certain stress of concrete specimens, and used the environmental simulation curing system to get the splitting tensile strength at the same curing condition, studied the cracking resistance assessment of concrete based on the anti-cracking safety coefficient.
Physical Model Testing of Wind Effect on the High-Rise
Authors: Poddaeva Olga I. , Buslaeva July S. , Gribach Dmitry S.
Published: December 2014

The problem of wind aerodynamics is solved. The experiment in a small wind tunnel was performed. The graphs of the pressure coefficients Cp on angle of attack have been determine. Significant microclimatic processes have been established.
Eхреrimental Study of Aerodynamic Loads on High-Rise Buildings
Authors: Egorychev Oleg O. , Churin Pavel S. , Poddaeva Olga I.
Published: December 2014

The problems of an experimental study of the aerodynamic characteristics of high-rise buildings on the example of physical modeling of wind effects on high-rise building in Moscow Foreign in the wind tunnel of architectural and building type. Describes how the experiment, the velocity of the incident justified the choice of the building flow for physical modeling. The tests are defined dimensionless forces and momenta, as well as the spectral characteristics of the aerodynamic coefficients characterizing frequency gathering basic (detached vortices) with the external contour design