bluuebunny/crossref_metadata_2025 huggingface dataset:
The Empirical Analysis for the Influencing Factors of Life Insurance Demand in Beijing Based on T Correlation
Authors: Jia Nian Nian , Yang Wen Hui , Gao Shan
Published: May 2014

The new period puts forward that developing the insurance industry should be based on the economic society and the people’s needs of the insurance, so a reasonable analysis of the factors affecting the insurance industry demand for the development of the insurance industry is very important. This paper indicates the empirical research to influence factors of Beijing insurance demand by using correctional and improved T related degree according to the related data of Beijing from 2006 to 2010. The results show that social security expenditure, GDP, urban per capita disposable income, outstanding amount of saving deposits of urban and rural residents, the number of insurance institutions and the number of ordinary university students was positively associated with the premium income in Beijing, and the influence degree weakened in turn; Urban unemployment rate and mortality rate was negatively relevant to premium income in Beijing, the influence degree of mortality rate was larger than the unemployment rate.
The Tobacco Industry Consume Material Management Systems Research and Development
Authors: Lin Wei Yun
Published: May 2014

For Shanghai Tobacco Group Beijing Cigarette Factory computer consume material management, research and development a Computer Consume Material Management System (CCMMS).The system based on B/S mode, it is very important to improve the enterprise computer consume material management, enhance computer consume material utilization efficiency, standardized consume material management, improve the accuracy of statistics and reduce the work time of administrator. Also introduced the CCMMS function and structure design, management workflow optimize, developing tools and method.
The Research of E-Commerce Personalized Recommendation
Authors: Zhang Yan , Kuang Tao
Published: May 2014

With the rapid development of electronic commerce, the problem of "information overload" leads to the difficulty that user can't search the required goods effectively , personalized recommendation technology has been applied in e-commerce and popularization. By using the method of qualitative analysis of the current e-commerce site,the paper compare the information retrieval, association rule, content-based filtering and collaborative filtering four main recommendation technologies and analysis the advantages and disadvantages in the application layer, the recommendation technologies are introduced to review e-commerce research hot topic in the field of personalized recommendation, and analysis the current domestic e-commerce personalized recommendation theory research and application status, finally propose the challenges faced by e-commerce personalized recommendation domain.
The Application in E-Commerce Profit Model
Authors: Zhang Yan , Zhu Shan Hong
Published: May 2014

In this paper, we start with the discussion of various theories of models of E-Commerce profits, then we focus on the development in one typical companies as Taobao mall in China and in US respectively.From the comparison, we identify the problems that companies in China are facing and propose the solution how to make profits.
A Model in Chinese Population Growth Prediction
Authors: Xuan Hai Yan , Zhang An Qi , Yang Na Na
Published: May 2014

Firstly, we calculated several statistics relating to the population forecast. Secondly, ba-sed on the Logistic prediction models, against Logistic model defects, we obtained the improved prediction model. Finally, using China's total population in 2004 as the initial population, we predict the total population of China in the next 30 years and in 2050 year by applying the model.
Application of Cleaner Production Audit in Energy Conservation and Emission Reduction in the Beer Brewing Industry
Authors: Yu Jin Quan , Zhang Yun , Zhang Shu Shen , Li Xue
Published: May 2014

The brewing industry is typically high pollution and energy consumption industry, the pollutant makes huge impact to the environment. It is necessary to reduce the energy consumption and emissions in the brewing industry. In this paper, based on the cleaner production (CP) audit of a beer brewing enterprise in Dalian, both the sources of the main pollutant and the reason of high energy consumption was analyzed. 3 medium/high CP projects and 4 none/low CP projects were carried out through technology and management improvement. By cleaner production audit, water consumption and sewage emissions can be reduced by 375 thousand tons and 350 thousand tons per year. Beer loss reduction ratio was 0.1%,energy can be totally saved by 3325 tons per year. The aims of energy conservation, energy and emissions reduction can be absolutely accomplished.
Application Research on Groundwater Circulation Exploration Based on Fluent Simulation
Authors: He Min , Jin Juan Juan , Liu Peng
Published: May 2014

It is very important to study the groundwater circulation and water chemistry evolution in the management and protection of water pollution. We use the Fluent simulation technology and the isotope tracer method to do simulation on the flow and distribution of groundwater. In the simulation process we set the model of Fluent isotope labeling group, and enter the groundwater flow parameters in the boundary condition, including water viscosity, osmotic pressure, and the average flow velocity. We use isotope tracer method to simulate the water flow. Finally, according to the law of groundwater flow, we predict the evolution rules of groundwater chemical by using the inverse geochemical simulation technology. It provides a theoretical basis for the management and protection of groundwater pollution.
Ultrastructure of Synergids in Sugar Beet
Authors: Li Wei
Published: May 2014

We use TEM to study the synergids in sugar beet, so as to provide more information for reproductive biology of angiosperm. Results were as follows: two synergids were similar in flower bud stage. Both of them show polarity with developed filiform apparatus (FA) at micropyle end and lacked cell wall at chalazal end. Then electron density in one synergid increased which suggested cell degeneration began. Complete degeneration finished before pollination. Organelles including mitochondrium, plastids and ribosomes gradually increased in the other synergid (persistent synergid). Metabolism of persistent synergid gradually enhanced. It began to degenerate when zygote had alveolate cell wall at the chalazal end, while completely degeneration and disappearance of FA took place at late stage of zygote. The results suggested that degeneration of one synergid in sugar beet must be triggered by other stimulation than pollination and pollen tube growth. As a transfer cell, persistent synergid transported nutrition for the development of embryo sac.
The Effect of Chloroquine on the Apoptosis Induced by Cisplatin in Human Gastric Cancer BGC823 Cells
Authors: Jin Zhen Xun , Zhang Li Li , Wang Yan , Zeng Lin Chuan , Yu Yang , Liu Shi Bing , Wang Xiao Jun , Xu Ye
Published: May 2014

The aim of this study is to investigate the effects and mechanism of chloroquine (CQ) on the apoptosis induced by cisplatin in human gastric cancer BGC823 cells. MTT assay was used to detect the state of cell growth. The appearances of cellular apoptosis were detected by laser scanning confocal microscopy and light microscopy. The expressions of LC3 and p62 were detected by laser scanning confocal microscopy. MTT tests showed that the non-toxic dose of CQ could increase the inhibition rate of BGC823 cells induced by cisplatin. Under the light microscope, the ratio of apoptotic cells in the group treated with non-toxic dose of CQ combined with cisplatin was higher than that in the group treated with cisplatin alone. Hoechst33342 staining showed that the ratio of apoptotic cells in the combination group was higher than that in the cisplatin group. The expression and colocalization of LC3 and p62 proteins were significantly increased in the combination group. These results indicate that CQ can enhance the cell apoptosis induced by cisplatin in BGC823 cells, which is through the inhibition of autophagy.
Analysis on the NC Milling Machining Precision and the Error
Authors: Tang Bo
Published: May 2014

the numerical control milling process design is on the basis of ordinary milling process design, combining with the characteristics of CNC milling machine, give full play to its advantages. CNC milling process design is the key to reasonable arrangement of process route, to coordinate the relationship between the CNC milling process and other process, determine the content and steps of NC milling process make the necessary preparations for programming. NC milling machining process analysis is related to the effectiveness and success or failure, is one of the important preparations before programming. This article will mainly for NC milling machining precision and machining error analysis and research.
Design and Implementation of Elevator Monitoring Terminal
Authors: Li Shi Hong , Hu Hui Pu , Jin Yan
Published: May 2014

Concerning the security issues in the running elevator and the fact that elevator monitoring is an effective means to ensure the safe running of the elevator, and the special equipment, users, manufacturers, and government supervision departments will need to master the operating conditions of the elevator. Therefore, combining with the main components, embedded microprocessor, RF communications modules, sensors and GPRS designed the remote elevator monitoring terminal, and complete real-time acquisition of the state data of the running elevator via GPRS communication module to send data to a remote network server. Monitoring terminal cooperates with the web server, database, and host computer software, then realize the remote monitoring and control of the elevator group. Practice has proved the feasibility, effectiveness and reliability of the design of the monitoring terminal.
Explicit Indirect Predictive Control Algorithm in the Application of AWC Control
Authors: Yin Fang Chen , Ma Geng Sheng , Ji Ya Feng , Li Zhong Ping , Zhang Dian Hua
Published: May 2014

Using the characteristics of prediction model, rolling optimization and feedback correction, a AWC system based on explicit indirect predictive control was designed, and its control performance was simulated based on a hot strip continuous mill. The results show that explicit indirect predictive control achieves better control effects than the normal PID on response time and steady precision with matching model; when model mismatching is caused by inaccuracy of plastic coefficient and pure delay time, the normal PID is overshot or even oscillation, but the control performance of the explicit indirect predictive control is not influenced by model parameter variations [1].
Interaction Factors Effecting on Gas Heat of Sectional Straw Gasifier
Authors: Sun Bu Gong , Wu Jian Ming , Shi Lin Rong , Sun Wei
Published: May 2014

Based on the analysis of the sectional straw gasifier and the basis of test results, according to the experiment results and advanced analysis method the test results of regression model was established. According to the regression model, double factors significant characteristics of gas heat was analyzed, the double of significant factors on the influence of gas heat was researched. The results show that the gas and material moisture content, gas and water vapor content of interaction effect is remarkable. Analysis on the double factors influencing gas heat for the improvement of sectional straw gasifier and finalize the design provided the necessary reference basis.
The Intelligent Identification and Control Systems of Vehicles Drunk Driving
Authors: Huang Jun You
Published: May 2014

In the light of the passive safety testing method of drunk driving, a new active safe product is designed in the field of automotive electronics: on-board automatic monitoring system for drunk driving. Based on PIC processor control system, the modularity is adopted including sensor detection sub-module, voice and display sub-module, a banned driving control sub-module after drunken, GSM sub-module, GPS positioning receive design ideas of sub-module, and complete the hardware circuit design. In MPLAB-IDE integrated development environment, the PICC compiler is adopted to complete the software design of the system. The maximum error of concentration testing experimental result is 8.2%.
The Design of Remote Logistics Warehouse Management System Based on ZIGBEE
Authors: Liu Pei Xue , Jin Pei Fen , Chen Yu Jie
Published: May 2014

According to the question that the situation of logistics goods warehousing and storage environment needs to be detected real-timely. puts forward overall design scheme of remote management system for logistics warehouse, the situation of logistics goods warehousing can be tracked by using electronic tags, storage environment parameters is collected by combining with the ZIGBEE wireless technology, if parameters is not appropriate, the system alarm timely. Remote data transmission using 3G way, without complex wiring, the paper analyses the hardware and software design of the system in detail, and introduces the RFID anti-collision algorithm.
Applications of Computer Graphics and Image Processing in Art Design
Authors: Yang Xu Guang
Published: May 2014

With the rapid development of computer graphics , image processing technology and three-dimensional modeling techniques, the approach of the Art Design extends to the computer-aided design from the original hand-drawn. Since three-dimensional computer graphics software effects processing and display of 3D modeling software, strengthens the beauty and expressions of Graphic Arts, In the individual performance, ordered, three-dimensional effects and innovative design, etc. all have different design performance and function. More importantly, with the help of computer, an advanced tool, so many design ideas and effects using traditional performance art design methods are difficult to be realized. What is more, Image and behaving more realistic visual communication has greatly improved the performance of the force.
Experimental Study of Sports Training of Computer Supported Collaboration
Authors: Lin Guo
Published: May 2014

Based on pedagogy, cognitive psychology, constructivist learning theory, supported by computer, the movement cognition learning strategy is put forward in experiment, which will achieve a Teacher-Student-Multimedia-multi-factor mutual teaching. This paper design the experiment, unvestigation question and achievement test to verify it. It proves that computer supported collaborative learning method increases the students interest in learning and skills in sports. The effectiveness of the method and teaching strategies are related to the use of Synchronous teaching and cooperative learning in P.E.
Detection of Weak Magnetic Anomaly Signal Using EMD
Authors: Zhao Li Hua , Xu Xue Qing
Published: May 2014

With the problem of magnetic anomaly signal in low SNR, we using empirical mode decomposition (EMD) algorithm and Savitzky-Golay filter to solve weak magnetic anomaly signal in noisy environment detection problem. With the EMD, the weak magnetic anomaly signal can be decomposed into different numbers of sub-signals called intrinsic mode functions (IMFs). The IMFs include signals different frequency component from high to low. Recover the signal with IMFs which correlation coefficient is low with noise signal and smooth the signal with Savitzky-Golay filter. The proposed method is verified by simulation on computer. The present experimental results show that this method is effective to detect the weak magnetic anomaly and recover the original signal.
Iterative Frequency Domain Equalization for Single-Carrier Space Time Diversity Systems
Authors: Zou Qi Feng , Tan Xue Zhi , Liu Mei
Published: May 2014

Single carrier frequency domain equalization (SC-FDE) has been receiving much attention for its advantage of suppressing inter-symbol interference (ISI). We proposed a frequency domain iterative decision feedback equalization (FD-IDFE) algorithm for single carrier space time block coding (STBC) systems. The paper use the multi-antenna transmit and Alamouti signaling scheme to achieve the significant diversity gain. We design the feedback equalization structure by Mean Square Error (MSE) criterion and Lagrange optimization method, and we also consider the parameters estimation. At last, we compare the proposed algorithm with the conventional equalization schemes, the simulation results illustrate that our method has excellent performance.
Research on Internal Control of Accounting Information System under Network Environment
Authors: Xie Qing
Published: May 2014

The rapid development of network information technology makes enterprise information systems expose to an open and complex environment, which brings a severe test to the enterprises internal control. This article mainly analyzes problems which internal control of accounting information system under the network environment may face in the aspects of control environment, risk evaluation, control activity, information and communication and supervision. It also advices that through strengthening the awareness of risk, strengthening supervision, employees training and system control to deal with these problems.
Research on Trigger Strategy of Virtual Machine Dynamic Migration in Cloud Computing
Authors: An Chun Ling , Li Chun Lin , Luo You Long , He Su Jie
Published: May 2014

According to the trigger strategy of virtual machine dynamic migration based on features closed in the process of dynamic migration of virtual machines in the cloud computing, this paper puts forward a double threshold trigger strategy using timing prediction based on historical data (DTS Algorithms). Then simulation on the CloudSim platform, and analyze the results of the experiment. Experimental results showed that in the system virtual machine migration using DTS algorithm can reduce the number of migration and the energy consumption during the migration process.
An Indoor Localization of WiFi Based on Support Vector Machines
Authors: Yu Feng , Jiang Ming Hua , Liang Jing , Qin Xiao , Hu Ming , Peng Tao , Hu Xin Rong
Published: May 2014

The recent growing interest for indoor localization-based services has created a need for more accurate and real-time indoor localization solutions. Indoor localization based on existing WiFi signal strength is becoming increasingly prevalent and ubiquity. In this paper, we utilize the information of the signal strength received from the surrounding access points (APs) to determine the user localization. The propose algorithm based on support vector machines (SVM) algorithm, and comparing with three kernel functions, radial basis function (RBF) performs best of all. Experimental results indicate that the proposed algorithm leads to improvement on localization accuracy.
Research on Application Status of Sensor Web Enablement
Authors: Zhang Wei , Zhang Ling Hua , Wang Chen , Su Jing Huan
Published: May 2014

With demand grows for ways to connect information systems with the real world. The quality of geographic information service has become a critical factor in the success of the service application. However, how to get a reasonable assessment of geographic information services is a complex issue. This paper studied the availability, stability, responsiveness and service quality of samples, and also analyzed the quality and current application of SWE geographic information services published, based on the monitoring model with a random collection of SWE addresses posted on the Internet. At the same time, discusses the correlation between the quality of geographic information services and area locations.
Research on the Legal Protection of Consumer Rights on Mobile Internet
Authors: Ni Xue
Published: May 2014

With the rapid development of Internet technology, network transactions are in increasing breadth and depth. Online trading market transactions as a new way to bring great economic benefits to society, but also to enter into the market for traditional legal face great challenges. Network of consumer protection in the transaction there is no protection of personal privacy, personal property, security risks, right, fair trading rights (the main form of contract) damages, rights have been infringed. In this paper, comparative research methods, introduced online trading, online trading, e-commerce and the difference between the three links to the special nature of the transaction through the network analysis and network transaction concrete manifestation of consumers 'interests to explore our network Trading in consumer protection are the main problems facing the proposed line with China's national conditions and consumer rights protection network transactions legislative proposals.
Research on Computer Network Data Transfer Methods
Authors: Liu Li Jun
Published: May 2014

In order to spread across different locations, sharing of computer resources, and ease of use of idle CPU or storage space Resources, there is the concept of grid and grid computing. Data - intensive scientific and engineering applications ( such as seismic data Numerical Simulation of physics, computational mechanics, weather forecast ) needed in a wide area, quick and safe transmission in distributed computing environments Huge amounts of data. So how in a grid environment efficient, reliable, and secure transfer massive files are in the grid computing A study on the key issue. Design and realization of dynamic task assignment algorithm and Performance experiment of the system.
Exploration of Accurate Evaluation Methods for Oil-Soluble Viscosity Reducing Agent
Authors: Zhu Li Jun , Jing Xiao Hui , Wang Shou Long , Xia Dao Hong , Li Ai Fen
Published: May 2014

This paper established an evaluation method for oil-soluble polymer viscosity reducing agent to heavy crude oil. The viscosity reducing agent was synthesized in laboratory and evaluated effects of diluent, mixing time, storage temperature and storage time on the viscosity reduction of crude oil. After inspection found that the evaluation methods have a significant impact on the viscosity reduction ratio. The maximum stable viscosity reduction rate can be obtained under optimal conditions. In the conditions of kerosene as diluents (ratio of 9:1), mixing time of 40oC, storaged at 50oC for 10 h, the viscosity reduction rate of 87% was achieved. The viscosity reduction rate can truly reflect the actual viscosity reduction ratio. This method can accurately determine the rate of viscosity reduction reducing agent for such other researchers evaluated in this method, the rate of viscosity reduction obtained is comparable in different labs.
Extract Soccer Video Highlights with Modified CRF
Authors: Huang Nai Gu , Yi Yang , Wang Yu Lin , Zhu Peng Fei
Published: May 2014

Soccer video analysis is attracting much attention. In this paper, we propose a modified conditional random field (CRF) model to extract the highlights of an entire soccer video. Highlight extraction in soccer video is essentially a kind of timing annotation problems, so the commonly used CRF model is adopted to solve this problem in this paper. Meanwhile, Boolean function is normally used as feature function in the CRF model, which will result in a hard association between observed variables and highlight variables. By introducing Bayesian network to model the observed variables and replacing the original feature function with posterior probability calculated with Bayesian network, hard association is transformed into soft association, which makes the model more close to the actual situation. Experimental results show that the proposed algorithm has achieved good results.
The Frontier of Route Planning Algorithm for UAV
Authors: Lin Na , Zhang Ya Lun
Published: May 2014

In recent years, as the UAVs route planning in the war becomes more and more important, many scholars pay much attention to its research both at home and abroad. Route planning of UAV is the key of successfully complete task and achieve the target of protection. In the route planning process, in order to obtain an optimal or suboptimal route, we needs to consider the terrain, threat, body performance and many other factors. In this paper, we talk the research background of route planning and research status at home and abroad. At last, we give a brief summary for the trend of route planning in the future.
Study of the Craft and Properties on Cr/WC System Hardfacing Alloy with Flux-Cored Wire
Authors: Xie Shuang Xian , Zhang Yu Feng , Ding You Hua , You Si Jun , Hong Yang
Published: May 2014

A wear-proof Cr/WC system surfacing alloy with flux-cored wire was developed by using a carbon dioxide gas shielded welding method. The wear-resisting property of the surfacing alloy was studied by analyzing the average hardness, the abrasion weight loss and the microstructure of the surfacing layer. At the same time, the influence rule of the alloying element in the flux core such as Cr , WC, Mo and V on the hardness and wear resistance of the surfacing layer was discussed systematically. Thereby the optimum concentration of alloying element was confirmed. The results show that when the content of Cr chemical element as 5.5%~6.0%, the content of WC powder is 3.9%~4.2%, the content of Mo is 1.6%, and the content of V is limited in 3.2%, the matching of the Cr/WC surfacing alloy with flux-cored wire is suitable, and the hardness and wear resistance of the surfacing layer is preferable.
Application of Marketing Network in Leisure Sports Industry
Authors: Li Jian
Published: May 2014

This paper introduces the definition and characteristics of leisure sports and the marketing network, then analyzes the role of the marketing network to leisure sports industry, finally put forward that the leisure sports industry should make full use of the advantages of the marketing network, set up suitable network and integrate related resources to reduce the cost and risk, so as to promote the continuous development of leisure sports industry.
Online Buying Decision Preference and Prospect Theory
Authors: Ren Jie , Zhao Dong Mei , Zhang Xiao Hua
Published: May 2014

Worldwide online retail sales continue to grow at a good pace. Online consumers purchase decisions are a very complex and robust subject. Consumers purchase decisions are greatly influenced by their attitudes, behavioral intention and local environmental security perception. The purpose of this study was to gain a better understanding that affect customer decision in online marketing from prospect theory perspective.
The Discussion of Precise Depreciation Management in China
Authors: Zhang Xu Bei
Published: May 2014

This paper proceeds as follows. Depreciation expense, which will directly relate to the size of the product costs, profits and taxes, is being widely concerned. A great number of people are particularly interested in the accurate depreciation of the costs of fixed assets. Different kinds of fixed assets bring economic benefits for the enterprise in completely different ways so that they should adopt different depreciation methods. The Enterprise Accounting Standards of China stipulated that if the companies increase fixed assets during the month, there will be no depreciation expense this month. But I disagree with this rule which violates the requirement of accounting the quality of information in reliability and authenticity. We should accurately calculate the depreciation expenses by the time, since then the depreciation expense can be accurate to a day. Strengthening the depreciation of fixed assets to precise management is imperative. Precise depreciation management not only helps to control the cost strictly, but also can strengthen management and promote the enterprise to develop sustainably.
The Application of Modern Technology in Sports Promotion
Authors: Cao Qian , Wu Li Hua
Published: May 2014

With the progress of social economy, the improvement of people's life quality, also increasingly attention to sports;The innovation of science and technology, to promote in sports, also began to actively the application of advanced science and technology, to a great extent, promote the development of the sports;But in the application of science and technology, also brings some negative problems, need to cause enough attention.This paper briefly analyzes the application of modern science and technology to promote in sports, hoping to provide some valuable reference advice.
A Comprehensive Recovery of Copper-Iron Experimental Research in the Copper Smelting Slag
Authors: Shang Xing Ke , Lan Zhuo Yue , Zhang Qi Fu , Li Ting Ting
Published: May 2014

With the depletion of mineral resources, more attention is paid on the secondary resources to recover valuable metals. In this paper, a research is carried out to recover copper and iron from copper smelting slag by flotation and magnetic separation. The influence of grinding fineness and collectors on flotation of copper are investigated. A copper concentrate is obtained by flotation and an iron concentrate is obtained by magnetic separation in the closed circuit flowsheet. The copper concentrate contains 18.86% Cu with a recovery of 72.36%, and the iron concentrate contains 52.24% Fe with a recovery of 70.87%.
Theoretical Study on the Influence of Transmission Parameters on the Transmission Performance of Magnetic Resonance Wireless Power Transmission Systems
Authors: Li Chang Sheng , Cao Juan , Zhang He
Published: May 2014

Magnetic resonance wireless power transmission technology is based on the phenomenon of resonant coupling to realize non-contact power transmission via near magnetic field. Based on the mutual coupling model of resonance system, the influence laws of system transmission parameters, such as coil coupling coefficients, load resistance, etc., on the transmission performance are theoretically studied in this paper. The research results shows that the power high-efficiency and high-quality transmission does not depend on the large coil loop coupling coefficient and the working frequencies of maximum power and maximum efficiency transmission do not coincide at most condition. Transmission systems with a high resonance frequency can produce high power and efficiency transmission over short distances. In addition, by increasing the coil diameter or wire diameter can improve the system quality factor, and optimize the energy transmission performance.
Study on Improving Biodegradability of Straw Pulp Papermaking Wastewater by Coagu-Flocculation and Nuclear-Flocculation
Authors: Song Xiao Qiao
Published: May 2014

When straw pulp papermaking wastewater was treated by the process of coagu-flocculation and nuclear-flocculation, there were still high CODCr. UV254 can reflect organic pollutants and organic pollutants of unsaturated aromatic ring, carbon-carbon double bond. With the decrease of molecular weight of organic pollutants, absorption of ultraviolet light will decrease. Indirectly, it reflectd that the combination process had a good removal effect on high molecular aromatic hydrocarbons difficult to be biodegraded. Meanwhile it can improve the the biodegradability. It used the activated sludge process as subsequent process of coagulation and-flocculation process. The test results showed that the removal rate of CODCr was 24.1%, CODCr was the 88.1mg/L. It reached effluent standard.
Study on Physical Training in Colleges and Universities with a Combination of Computer-Aided Analysis
Authors: Li Ai Jun
Published: May 2014

Along with the development of computer network technology and Internet, network courses have become an irreversible trend. When sports dance be displayed in a network platform, it can both benefit the classroom teaching and extracurricular self-study. This research combined the literatures research and experimental research, demonstrated the advantages of the application of network courses for auxiliary teaching in sports dance.
The Application of Multimedia Computer Assisted Language Learning in English Teaching
Authors: Chen You
Published: May 2014

Multimedia computer assisted English learning has been widely used with the development of information technology. This new technology has many advantages in improving the students’ learning efficiency and teachers’ quality. In this article, the applications of multimedia computer assisted language learning in English teaching such as phonetic teaching, conversation presentation, text presentation, background introduction and practice strengthening are analyzed. The possible problems in English teaching and countermeasures are also introduced.
Test Research on Strength of Concrete Shaft Lining under Salt Disaster Corrosion
Authors: Li Xu Rong , Ji Hong Guang , Wang Jun , Song Cheng Lin
Published: May 2014

In order to study the strength change of high strength concrete shaft lining structure in underground complex environment resisting composite salt damage erosion, C70 high strength concrete test specimens were made and composite salt disaster solutions of different concentrations were compounded. The test results show that the coefficient of compressive strength and flexural strength of high strength concrete increase in early corrosion and then decline. The strength of specimen declines more quickly in higher corrosion solution concentration in latter time. The change law of the flexural strength is more complex than the compressive strength. Composite salt disaster solutions have little effect for no damage high strength concrete.
Air Material Order Optimization Strategy Based on Aircraft Availability
Authors: He Ya Qun , Li Ji Jun , Guo Hong Yang , Gao Hui , Wang Tao
Published: May 2014

To solve the problem of air material order problems of the station, this paper established under funding constraints to aircraft availability as a measure of the air material order optimization model, derivation the method of marginal analysis to solve the model, and use examples to illustrate the effectiveness and practicality of the method.
Liquid-Solid Coupling Vibration Analysis of the Offshore Pipeline
Authors: Chu Fei Xue , Li Jia Jun
Published: May 2014

On the basis of Hamilton principle, the equation of the solid-liquid coupling vibration of pipe conveying fluid is deduced. The formulas of the offshore pipeline natural frequency are established by used of direct method. The effect of flowing velocity and the elevated temperature on inherent vibration frequency of offshore pipe conveying fluid is analyzed.
Fabrication Comparison of the SCS-Based and SOI-Based Micromachining
Authors: Chen Qing Hua , Li Yan Mei , Chen Ying Jun , Wu Wen Gang
Published: May 2014

The two different fabrications of the Micro-Electro-Mechanical Systems (MEMS) mirrors were compared: a single-crystal-silicon (SCS)-based micromachining and a silicon-on-insulator (SOI)-
based micromachining. While the SOI parts had significantly smaller curved device appearance, they were outperformed in most areas by the SCS parts. This was due primarily to the smaller stress factor in the device layer in the SOI parts compared to the polysilicon layer used in the SCS parts.
Electric Vehicle Battery SOC Estimation Based on EKF
Authors: Bao Hui , Jiang Wei , Wei Dan
Published: May 2014

In order to estimate the battery state of charge (SOC) accurately, an improved Thevenin model of a battery is established, its mathematical relation is very simple, and also it is easy to realize. In addition, we identify the model parameters, and then use extended Calman filter algorithm to estimate the battery state of charge. The simulation results show that, this model can well reflect the dynamic and static characteristics of a battery, and the Calman algorithm can keep good accuracy in the estimation process.
Manganese Oxide Anodized from Manganese Films Electrodeposited at Different Cathodic Currents and its Capacitive Performance
Authors: Li Wen Po , Zuo Xiu Li , Lv Tang Man , Zhang Sheng Tao
Published: May 2014

Nanostructured manganese oxide films were obtained by electro-oxidation of manganese films electrodeposited at two typical cathodic currents of 65 mA cm-2 (EDM-65 oxide) and 150 mA cm-2 (EDM-150 oxide) from sulfate solutions with additives. Obtained Mn oxide films were studied by scanning electron microscope, X-ray photoelectron spectroscopy, cyclic voltammetry and AC impedance. SEM study revealed that the Mn oxide films were mesoporous nanostructures on the EDM-150 oxide surface, while the EDM-65 oxide coating is homogeneous and compact. XPS results indicate that EDM-150 oxide had a higher content of anhydrous Mn oxide and structure water, which means that it had more anhydrous characteristics as compared to EDM-65 oxide. It was shown that porous nanostructured films showed good capacitive behavior for applications in electrochemical supercapacitors. The porous nanostructured films prepared at 150 mA cm-2 showed higher specific capacitance (SC) compared to the SC of the EDM-65 oxide films. The highest SC of 148 F g-1 in a voltage window of 0.8 V was obtained in 0.1 M Na2SO4 solutions at a scan rate of 25 mV s-1.
MnO/CNTs Composite as Anode Material for Lithium Ion Batteries
Authors: Ding Peng , Guo Li Li , Ling Zhang , Yin Mu Yi , Liu Fu Lin , Yang Jian Wen , Yi Hai Jian
Published: May 2014

Transition metal oxaides especially manganese monoxide (MnO) are being intensively studied as candidate anode materials for next generation lithium ion batteries in high efficiency energy storage applications. In this paper, MnO/CNTs composite is prepared by hydrothermal reaction and subsequent annealing process. The results of XRD and SEM showed that MnO/CNTs composite is rod-like with good crystallinity, and its diameter is about 300 nm. It could deliver a reversible charge capacity of 689.6 mA h g-1at the current density of 14.4 mA g-1, and the specific discharge capacity is 500.5 mA h g-1after 185 cycles. All the above makes MnO a promising anode material for lithium ion batteries with high capacity, long life time, low cost and environmental benignity.
Research on the Prediction Model of Urban Power Grid Short-Term Load Based on BP Neural Network Algorithm
Authors: Xu Pei Long
Published: May 2014

Objective: The paper aims to establish the prediction model of urban power grid short-term load based on BP neural network algorithm. Method: Five factors influencing the urban power grid short-term load are used to establish the neural network model: date type, weather, daily maximum temperature, daily minimum temperature and daily average temperature. Matlab toolbox is used to develop the testing platform through VC++ programming. Result: The variable learning rates are 0.35 and 0.64. With 23410 iterations, the model is converged, and the global error is 0.00032. Conclusion: Through the data comparison and analysis, the relative error is within 5%, thus indicating the model is accurate and effective, and it can be used to predict the change of urban power grid short-term load.
Control Study on Contamination Rate of Tissue Culture of Paris Polyphylla
Authors: Yang Hua , Liu Fan , An Wen , Tian Meng Liang
Published: May 2014

Taking young and tender bud of Paris polyphylla as explants, this paper studies the influence of different disinfection time, different pretreatment of low temperature, penicillin pretreatment in different time, and different bacteriostat treatment on the contamination rate of the tissue culture of Paris polyphylla. The experimental results show that: the disinfection effects of 30ss alcohol disinfection combining with 10mins sterilizing by mercuric chloride are the best; 4°C low temperature pretreatment for 360min is helpful to decrease the contamination rate; soaking in penicillin for 10min is effective for decreasing the contamination; respectively adding 3000mg/L sodium propionate and 20mg/L sodium benzoate in nutrient medium can effectively reduce the contamination rate.
Factor Analysis on Agricultural Mechanization Level in Changsha
Authors: Tang Jin Hua , Yu Lei
Published: May 2014

The author deeply studied agricultural mechanization level from the year of 1994 to 2012 in Changsha with Path analysis method. The research found that the peasant cultural levels, rural labor transfer rate and the peasants' income level were the leading factors deciding on agricultural mechanization level in Changsha. The direct influence of arable land per capita was not great while its indirect contribution by other influence such as the peasant cultural levels and rural labor transfer rate. Finally constructive suggestions were put forward to give impetus to develop agricultural mechanization.
Study on Product Processing Technology and Mechanical Property of TA2 Titanium Tube
Authors: Ding Xiao Ming , Li Yan , Hao Meng Yi , Yao Wang
Published: May 2014

Titanium alloy tube has been widely used in various industries due to its good corrosion resistance, small proportion and high intensity. In this research, TA2 Titanium Tube has been deeply processed under different rolling speeds and heat treatment. Through the experiments the following conclusions have been made: rolling speed has little effect on the TA2 tube properties; the tube with 485°C by 3min induction heat treatment after rolling could obtain 534MPa tensile strength, 406MPa yield strength and 30% elongation. As heat temperature increasing, the microstructure of the TA2 tube transfers from fiber to equiaxial structure; the surface stress of the tube is tensile stress and heat treatment can reduce the surface residual stress.
Customizing Procedure of Finite Element Analysis for Sheet Metal Forming
Authors: Xu Xu Dong , Li Guang Jun , Wei Zhan Chong , Li Fang Xue
Published: May 2014

Based on Pam-Stamp software platform, standardization procedure of finite element analysis for sheet metal forming was customized by set up module such as model building, meshing, setting of boundary conditions, calculation submitting, viewing of results and report generating. Standardization procedure has been successfully applied in the development of new products, which shortens the preparation cycle of procedure, improves the forming quality of the parts and enhances the capability for rapidly researching and developing.
Design of a Playback Control System for Flight Parameter Recorder
Authors: Yang Hong Yu , Chen Yan
Published: May 2014

A play-back controller was designed for a certain series of aircraft. The XC866 MCU was used as the main controller unit, and an 8051 MCU as the assistant control unit. It achieved the function of channel selection, channel switching, signal filtering, signal decoding and tape speed controlling. Compared with other play-back controllers this instrument is more superior in control precision, reliability, use of flexibility and simple of structure.
Study on Smooth Sliding Mode Control of Parallel Robot
Authors: Zhu Cai Hong , Sun Hong , Zhang Hong Tao
Published: May 2014

Parallel robot possesses the characteristics of large rigidity, strong load bearing capacity and small error. Directed against the new-type parallel robot mechanism with step motor drive, the closed-formed solutions were developed for both inverse and direct kinematics, a track planning in its workspace has been carried out, and a model of control system was establish, after that a kind of sliding mode control algorithm was designed, and a simulative experiment was made on the Matlab/Simulink. It is shown that the parallel robot system using the proposed control algorithm does not have the chattering problem. The system has good robustness, and is robust to the uncertainties and disturbance, and has good performance in tracking, and high precision real-time control on this parallel robot is achieved.
Error Analysis of a Manipulators
Authors: Chen Li Wen , Cui Bing Yan , Zhang Guang Hao
Published: May 2014

The forearm is a typical ball and socket joint which have three degrees of freedom rotation. In this case the study of a 3-DOF manipulators is very interesting. In this paper, a novel manipulators based on 3-DOF orthogonal spherical parallel mechanism is proposed. Error analysis play an important role on the design and applications of the manipulators. The error model is derived in closed forms by using differential theory. Error evaluation index is defined. Terminal platform error distribution is analyzed and discussed in detail by using the error model technique. The analytic results indicate error value is smallest in initial position of the manipulators,the bigger value of error distributes in the workspace edge. So, this paper could provide a theoretical foundation for design and application of the manipulators.
Influence Analysis of Evolutionary Power Spectrum’s Randomness on Synthesized Acceleration Time History
Authors: Zhong Ju Fang , Hu Xiao , Liang Jun Wei
Published: May 2014

The influence of evolutionary power spectrums randomness on synthesized acceleration time history is not considered in the existing time history synthesis methods. In this paper, the calculation methods of evolutionary power spectrums randomness are discussed. The influence of evolutionary power spectrums randomness on synthesized acceleration time history in shape and characteristic parameters are analyzed. The Sensitivity of the effect on shape and characteristic parameters of synthesized acceleration time history by the evolutionary power spectrum modeling parameters randomness are also compared. It shows that, the characteristic of evolutionary power spectrums randomness has little impact on the shape, arrive time of peek value and duration of synthesized time history, but the effect on the ground motion peek acceleration, effective peak acceleration and energy are notable. Characteristic parameters of time history great affect by amplitude of super-randomness characters. When the amplitudes increase from 0.05 to 0.20, the maximum increase of PGA, EPA and E in horizontal component is 10.0%, 15.0% and 19.0%, and the vertical component is 11.6%, 10.8% and 19.0%. So, I suggest that taking the consideration of randomness in synthesis acceleration time history and limiting the amplitude in 0.05 to decrease the error from omitting the effect of randomness, and not bring in randomness which could lead to distortion in calculation.
A Dynamic Calibration Test on PVDF Film Pressure Sensor with Dropping Hammer Method
Authors: Wang Yong Qiang , Xiao Ying Lin
Published: May 2014

Polyvinylidene Fluoride (referred to as PVDF) piezoelectric film is a new type of polymer piezoelectric materials. Because of its light weight, thin thickness, high sensitivity, high mechanical strength, wide frequency response range and other advantages, it has the application prospect in the explosion field. In this article, film sensors were made based on the PVDF piezoelectric film, and its role in the sensors is the sensitive element. The result of the low dynamic pressure calibration tests showed that it has a very high linear degree and good reproducibility, so that it can be used for low-pressure section of the shock wave pressure measurement.
Simulation and Experiment of Speckle Reduction by the Beam Splitting Method on a Pico-Projection System
Authors: Pei Ting Hang , Yeh Feng Chun , Tsai Kuen Yu , Li Jia Han , Liu Zu Rong , Hung Chang Li
Published: May 2014

An optical scheme using two correlationless beams to suppress the speckle of the pico-projection system is proposed. By using two broadband beam splitters (BBS) and two high reflection mirrors, the originally incident laser beam is split into two beams. The mutual correlation coefficient between two split beams is very close to zero. We use the haze reflection based on the random scattering model to simulate light reflected from the rough surface. In simulations, light is respectively reflected from the same size flat and rough surfaces and both recorded images are compared with each other. The image from flat surface is very clear on the detector plane. On the contrary, the image from rough surface is very fuzzy and the edge is hard to figure out. The simulations show that the speckle contrast ratio (CR) is reduced from 1.0 to 0.707. We find out a solution of the speckleCRless than 0.71 when the distance between two BBSs is 2.4 mm and the thickness of each BBS is 0.4 mm. Finally, we carry out an experiment and verify the simulating results. By our analysis from the experimental data, the speckleCRcan be reduced about 25% which is close to the theoretical value of 29.3%.