bluuebunny/crossref_metadata_2025 huggingface dataset:
An Efficient Web Service Composition Method Based on the Price-Time Petri Net
Authors: Fang Xian Wen , Zou Yan Ni , Zhao Qian Jin
Published: July 2011

At present, developers can rapidly generate applications through Web service composition, the quality of service (QoS) of web service composition is important, but most of the existing composition methods are difficult to balance the QoS indexes (Such as time and price). In this paper, a web service composition method based on the price-time Petri net is proposed, the minimum cost can be obtained by modeling based on price time Petri net, and presents a method of priced state class to analyze the cost of web service composition model. Theoretical analysis and case analysis show that the price-time Petri net method is feasible to study Web service composition with the minimum cost.
Study on the Characteristic of Self-Excited Cavitation Oscillation in Pump-Piping System
Authors: Duan Xiao Long , Mao Gen Wang , Yan Jun Feng , Wu Bao Yuan
Published: July 2011

In order to analyze the characteristic of the self-excited cavitation oscillation occurred in an inducer-centrifugal pump-piping system, a novel cavitation dynamic model is present to simulate the dynamic characteristic to capture the limit cycles, the characteristics of inlet pressure and the flow rate. The results of numerical experiments indicate this cavitation dynamic model is very suitable to simulate the characteristics of the self-excited cavitation oscillation; the calculated limit cycle of flow rate vs. inlet pressure is consistent with experiment; the cavitation pocket decreases as the flow rate and inlet pressure rise.
Transparent TCP-to-SCTP Translation Using Shim Rules-Table Dynamic Configuration
Authors: Li Ying Yong , Ma Yu Chun , Chen Xiao Yan
Published: July 2011

Using the application of bulk data transfer, we investigate the performance of existing TCP-to-SCTP Translation shim scheme under the scenario of shim rules-table is static (i.e., manual). We find that a potential problem named stale shim rules-table value caused by shim rules-table static configuration, which induces TCP-to-SCTP Translation does not startup in time. Based on this, we present a suggestion called Shim Rules-table Dynamic Configuration (SRDC) for TCP-to-SCTP Translation to implement the real-time startup and to improve the throughput of SCTP association by modify original shim rules-table command list, original socket option, original function of connection( ) and sosend( ).
An Approximate Minimal Elimination Ordering Scheme
Authors: Yao Lu , Wang Zheng Hua , Cao Wei , Li Zong Zhe , Wang Yong Xian
Published: July 2011

Matrix ordering is a key technique when applying Cholesky factorization method to solving sparse symmetric positive definite system Ax = b. In view of some known minimal elimination ordering methods, an efficient heuristic approximate minimal elimination ordering scheme is proposed, which has the total running time of O(n+m). It is noteworthy that the algorithm can not only find a good ordering efficiently, but also achieve the result of symbolic factorization simultaneously.
Two Simple Schemes for Preparing Multipartite Entangled States of Cold Trapped Ions
Authors: Yu Li Zhi
Published: July 2011

Two experimentally feasible schemes are proposed for generating multipartite entangled states of cold trapped ions. In the first scheme, a Greenberger-Horne-Zeilinger state can be simply synthesized in a single step, in view of decoherence mechanism, a reduction of the number of operations for the state preparation is crucial. What’s more, only one laser beam is required in our scheme. The second scheme is to prepare canonical (fully symmetric) W states by two steps. However, in the paper [HÄaner H, HÄansel W, Roos C F,et al.Nature, 2005, 438:643-646.] M steps were required for generating the same W states.
Scene Graph Based Multi-Thread Rendering System
Authors: Wan Fang , Deng Fei
Published: July 2011

Traditional three dimensional system data structure such as tree and linked list does not fit the huge data organization and management. In this paper, we introduced advantage of scene graph data structure in three dimension data management and presented a scene graph based data structure to improve the management and rendering efficiency. To assure high performance in a usual PC machine, we designed a multi-thread structure to respectively handing data reading, merging and rendering. From the experiment, we proved the capability of the multi-thread rendering system in different level of data size.
Study on Simulation Model of the Cellular Automaton for Passive Lane-Changing Based on the Avoidance of the Prospective Following Vehicle
Authors: Bian Jing , Zhuang Hong , Li Wei
Published: July 2011

It is the key fact for the accuracy of traffic simulation that the cellular automation model of traffic flow could simulate the real hybrid traffic flow. This article shows the method to improve cellular automaton model about two-lane hybrid vehicles based on passive lane-changing, to propose the avoidance rules about the prospective following vehicle, and to suggest the cellular automaton model and evolution rules based on the prospective following vehicle’s avoider. The simulation results show that the erroneous judgment rate for changing lane is the important facts for the state of two-lane hybrid traffic flow, and the accuracy of the simulation is improved in this article.
Your Propagation Model of File-Sharing System in P2P Network
Authors: Wu Yan Peng , Liu Hao , Lei Jun Cheng
Published: July 2011

File-propagation and replication is a key problem of P2P Network. In this paper, epidemic model with spatial dynamics was adopted, and a file-propagation model of P2P network is proposed. In this model, most states of nodes are fully considered, and simultaneously, the behavior of propagation and replication in the file-sharing system in P2P network are researched and simulated. Final simulation results testify that the model accords with practice perfectly.
A Project of Protection Digital Evidence
Authors: Li Huan Zhou , Zhang Jian , Tang Zhang Guo , Zhong Ming Quan
Published: July 2011

To protect digital evidence during Computer Forensics, the measure of protection digital evidence was analyzed, and a project of protection digital evidence (Digital Evidence Protection System, called DEPS) was designed. In this paper, the framework and element of DEPS was introduced, and the mechanism of multi-digital-signature and digital time-stamp of DEPS was described.
The Study on Power Consumption Models for Low-Power Wireless Communications
Authors: Mo Xiao Ling , Peng Mei Xiang
Published: July 2011

Power consumption models for low-power wireless communications, where transmitter and receiver electronics power consumption is comparable to PA power consumption, are based on channel path loss, depending on distance between transmitter and receiver, making them suitable for energy-efficiency consideration of multi-hop vs. single-hop communication. We propose L – model, based on total channel-loss, that is more suitable for transmission energy consumption optimization in the sense of different modulation and coding techniques than d – models. Since total channel loss information is available at current transceivers in terms of RSSI and LQI, L – model is more suitable for TPC techniques optimization than d – models.
Research for Robust Watermarking Algorithm Using Least Significant Bit
Authors: Wang Jun Jie , Mo Qian , Mei Dong Xia , Li Su
Published: July 2011

An image watermarking algorithm using Least Significant Bit is presented. Firstly, Logistic chaotic map is utilized to generate embedding bits for the watermark. Then, the discrete cosine transform is performed on the host image, and the hiding bit is embedded in the coefficient of discrete cosine transform by replacing Least Significant Bit, which causes minimal distortion of the host image.The original host image is not required when extracting the watermark . Experimental results show that the watermarked image almost has no difference from the original host image, and the quality of the extracted image is satisfying, the capacity of this algorithm is high. This algorithm is robust to many attacks, such as noise attack, JPEG Compression attack. Introduction
Sensitivity Analysis of Blast Furnace Gas Combustion
Authors: Liu Hui , Chen Wen Zhong , Li Ben Wen
Published: July 2011

Simplification of the detail reaction mechanism is critical to the numerical simulation of BFG (Blast Furnace Gas) combustion. The software CHEMKIN was used for solving a one-dimensional mathematical model of steady-state premixing combustion. By analyzing the effects of BFG’s basic species on the burning rate, the simplified reaction mechanism was obtained. Compared the results of simplified mechanism with that of detail mechanism, the consumed time of the former was less than 1 second but that of the latter was about 18 seconds. The differences between the molar fractions of BFG species which were computed by the two mechanisms were less than 0.4%. Therefore the reliability of the simplified reaction mechanism is verified.
Considering Public Policy about Low-Carbon Economy
Authors: Nie Ying Nan , Peng Yuan Yuan
Published: July 2011

In the context of globalization and low-carbon economy, the Chinese government has drawn up a number of policies and policy experiments to carry out low-carbon economy. But these policies are not perfect, there are still some problems in the formulation process to adapt to the phenomenon of the low level of the national development, the high degree of the “input level”, the policy pilot of the promotion. In response to these phenomena, this paper proposes innovative mechanisms to promote the policy system. The establishment of low-carbon-based government to improve public participation in policy development, the strategies that track the pilot survey of policy, the use of a combination of scientific method such as qualitative and quantitative development of low carbon policy, the low-carbon cycle mechanisms and publicly available information system will be conducive to low-carbon economic policies favorable operating in China.
Motion Correction With Adaptive Karlman Filter
Authors: Liu Yang Ke , Lv Chun Zhao , Li Chang
Published: July 2011

In the digital image stabilization system, Kalman filter is the most commonly used filter for motion correction. When the wanted movements have large assumptions deviation with the movement model, the result of motion correction will cause divergence and even error. For this problem, a novel motion correction method with adaptive Karlman filter is proposed. The back and forth characteristic of the unwanted motion and the smoothness characteristic of the wanted motion is used to adjust the system noise and the observation error adaptively. Experiment results show that the proposed method can effectively distinguish the wanted and the unwanted movement. Compared with the method with fixed parameters, the proposed method takes into account the smoothness and delay of wanted motion at the same time and it is more adaptively.
On-Site Investigation Electronic Evidence
Authors: Du Jing , Huang Hua
Published: July 2011

In the era of computer networks, digital, network, information, with the rapid development of high technology has also brought many problems. Widespread use of network, the network increasing proportion of the population, and uneven quality of the network, network become a new type of criminal tools, criminal place. Crime prevention network, has become the computer field, the legal profession must face one of the topics. And how to resist the various modus operandi, how to do in the case of the detection process did not miss any clues, it became a breakthrough in fight against computer crime areas. This paper[1] firstly outlines the theory of electronic evidence, feature analysis, which describes computer crime / network crime cases in the exploration of electronic evidence collection, extraction and analysis. [1] This work is partially supported by the Opening Project of Key Lab of Information Networks Security of Ministry of Public Security（C09608）
Distributed Intrusion Detection and Research of Fragment Attack Based-on IPv6
Authors: Ke Yun , Li Yan
Published: July 2011

IPv6, the address has to aggregation, thus greatly reducing the length of the routing equipment routing table to improve the efficiency of routing and security, but then there is any possibility of network intrusion attack. This paper used to implement IPv6 Snort intrusion detection software, intrusion detection system is proposed as long as the server itself TCP / IP stack on the handling of data packets are different, the packet will bypass the intrusion detection system from the ground to produce a TCP fragment attack.
The Application of New Computer Technology in Traditional Enterprises
Authors: Luo Sai
Published: July 2011

The article focuses on traditional enterprises, and briefly discusses the necessity of application using new computer technology. Specifically, it indicates the new computer technology, and analyzes its advantages and applicability. Moreover, base on the characteristics and status of the traditional enterprise, the author points out specific strategy and implementation plans. Finally, the author analyzes the misunderstanding of the gives practicable rationalization proposals.
A Testing and Analyzing Tool for Performance of Image Compression Algorithms
Authors: Zhang Zhi Ping , Zhou Xi Liu , Liu Jian Ping
Published: July 2011

We design and realize a testing and analyzing tool for performance of image compression algorithms. This tool can test and analyze compression algorithms and generate kinds of analysis chart automatically, provides a lot of convenience for users and has very important practical value.
The Study on Software Interface Art Design Based on Engineering Methods
Authors: Zhao Yin
Published: July 2011

The article described software design need to be from user's point of view, the key in software developing and interface design is not using what kind of development tools, but by using which kind of thinking and program theory to guide the design. Design thought and methods finally determine success and quality of design. Emphasizes that aping functional art design methods to engineering development process, discussed the application ways of the engineering development methods in software interface of art design. Emphasizes the significance of artistic thought in the software interface design, and points out that logical design process is basic condition & effective ways to achieve the desired interface art design.
A Prototype of Electronic Toll Collection System Based on Encryption Algorithms and Intellectual Technology
Authors: Zhang Geng
Published: July 2011

In the design of the proposed ETC scheme, all three major intelligent systems, such as AVC, AVI, and AVE have been included, where in each case some advanced technological features have been introduced. Moreover, inclusion of two stage security protocols with a robust encryption algorithm for data communication and the SMS based notification make the proposed system unique among all other existing methods. A prototype has been developed based on the proposed design and found to meet the desired performance specifications.
Antimicrobial Resistance among Coagulase-Negative Staphylococci Isolated from the First Bethune Hospital
Authors: Xu Jian Cheng , Zhang Man , Liang Ran , Zhou Qi
Published: July 2011

Coagulase-negative staphylococci (CNS) are among the most frequently isolated bacterial species in clinical microbiology, and most CNS-related infections are hospital acquired. The aim of the present study was to evaluate the antibiotic resistance profiles of CNSisolated in the First Bethune Hospital. Disk diffusion method was used to study the antimicrobial resistance. The data were analyzed by WHONET 5 software according to Clinical and Laboratory Standards Institute (CLSI). The majority of 2484 strains of CNSwere collected from blood (925, 37.2%), secretions (652, 26.2%) , urine (323, 13.0%) and pus (250, 10.1%). The percentage of methicillin-resistant coagulase-negative Staphylococci (MRCNS) was 80.5％. All the CNS isolates were sensitive to vancomycin and teicoplanin. MRCNS strains were frequently resistant to multiple antibiotics. Antimicrobial resistance of MRCNS was more serious than that of methicillin-sensitive coagulase-negative Staphylococci (MSCNS). These results suggest that surveillance of antimicrobial resistance among CNS is necessary.
Hydrothermal Synthesis of MgBO2(OH) Nanomaterials
Authors: Wang Guo Sheng , Wang Kang Jun , Hou Jia , Sun Hong Yan , Wang Ying Ming
Published: July 2011

Magnesium borate hydroxide (MgBO2(OH) ) were synthesized using magnesium nitrate hexahydrate(MgNO3.6H2O) and borax decahydrate(Na2B4O7.10H2O) by hydrothermal route. Effect of reaction temperature , reaction time and water's volume on the composition , structure , and crystal morphology of the products were investigated, and the products were characterized by XRD and SEM. The results indicated that all of the products were szaibelyite with the reaction condition investigated, and crystal morphology could be tailored via varying the reaction condition.
Study on Aircraft Recognition in High Spatial Resolution Remote Sensing Image Based on Skeleton Characteristics Analysis
Authors: Cai Dong
Published: July 2011

Aircraft recognition automatically is an important research content in target recognition. Improving aircraft recognition precision can accurately realize the regional dynamics, and make correct decision-making support. This paper researches on recognition of aircraft in high spatial resolution remote sensing imagery based on edge detection technology, extraction skeleton technology based on Constrained Delaunay Triangulation, and target recognition technology based on Geometric Features Parameter and Network Measurement.
Philosophic Thinking about Computer Applied in Hospital Information Management
Authors: Liu Zhi Guo , Wu Shu Yong , Yu Kui
Published: July 2011

The computer application in hospital information management is more and more universal and thorough now.But the computer develops anyway, it’s nature all is human being's implement.We should treat the current situation and future prospect that the computer applied in hospital information management with system and develop view.
Analysis and Attitude Control of Spacecraft with Input Uncertainty
Authors: Chen Sheng Qi , Zhou Jun
Published: July 2011

A moving mass control of rotating spacecraft is a kind of new control mode, it differs from other control modes because it generates an angle of attack and an angle of sideslip directly from the mass motion.The nonlinear equations of motion for rotating Maneuverable Spacecraft are derived. the variable structure attitude controller is presented according to the nonlinear equations, It’s based on two-timescale separation and with two loops, faster loop and slower loop respectively. Inertial uncertainties and aerodynamic moment uncertainties are considered simultaneously, In order to track the command signals perfectly, the sliding surface is of integral form, results of the simulation shows that this kind of attitude control system is potentially practical and robust in the presence of inertial uncertainties of guided missile and uncertainties of aerodynamic moments. Compared with the common attitude control system, it has the following advantages:(1) non linear model is directly controlled,(2)it has robust. Because the non-linear factor is considered, it has the practical use for the engineering field.
A Human Settlement's Assessment with GIS on Niche Suitability in Heng Yang City of China
Authors: Hu Zui
Published: July 2011

In order to assess the cities' human settlement, this paper proposes a new method according to the elements of niche suitability by the following: (1) the author selects meticulously 25 leading indicators what can reflect the best coupling between the reality niche and the best approximate niche; (2) the author sets up a new quantitative model of multiplies indices using niche suitability on assessing the cities' human settlements. By the way, the indices those the author uses to set up the model are form the economical, social and environmental niche respectively. The new method and the model are used to assessing the Heng Yang City of Hu Nan Province in China in order to take an example for its effect. With the help of the SuperMap-GIS software in his experiment, the author acquires a thematic map of Heng Yang Cities' human settlement, the results of this experiment display that this method and its model are very practicable for assessing a cities' inner human settlement. By the results of this paper, the author expresses his viewpoints for promotion the cities' human settlement that this paper does a research.
The Flatness Assessment Algorithm Based on the Linear Filter
Authors: Wang Ao Sheng , Cao Xiao Rong
Published: July 2011

According to modern digital flatness assessment attributes, it is required to eliminate interference points by the most simple and fast algorithm, reducing scanning time of data and then optimizing the flatness assessment algorithm. The flatness algorithm by linear filter is suggested to seek out the candidate feature points of flatness, on the smallest inclusion surface, with no more than two high (or low) points on one line, no more than three high (or low) points on one flat surface, and we therefore propose the corresponding searching methods. This model is easy to implement in a computer, and the algorithm is simple, decreasing the number of searches, and also guarantee to be consistent with the new generation of GPS precise interpretation of the principle of minimum zone.
Epidemic Threshold for Metapopulation Networks with Demographical Dynamics
Authors: Wang Yi , Jin Zhen
Published: July 2011

In this paper, we investigate the dynamics of an epidemic model with birth anddeath and reaction-di usion processes in heterogeneous metapopulation networks. By mean- eld analysis, we obtain the conditions that the disease will outbreak on networks for somespeci c cases. This reminds us both the structure of the networks and population demographyplay an important role on the spread of infectious disease.
Study of Wireless Secondary Connections in Gas Insulated Switchgear
Authors: Wei Fu Sheng , Chen Rui Min , Xiao Yong , Dang San Lei , Yang Jing Feng
Published: July 2011

The paper first discusses the feasibility of the wireless communication in GIS (Gas Insulated Switchgear) substation. The signals inside GIS according to ISA100 standard are first classified and then a scheme to transmit some of the signals by ZigBee wireless is given. A demo example is shown to verify the proposed scheme. In the end, some future modifications and conclusion are discussed.
An Efficient Data Association Algorithm for Single Target Tracking with Multiple Centralized Heterogeneous Sensors
Authors: Lu Da Wei , Yan Xing Wei , Ou Jian Ping , Zhan Rong Hui , Zhang Jun
Published: July 2011

An efficient data association algorithm is presented to track a single target with multiple centralized heterogeneous sensors. The sharing parts of measurements from different sensors are used to accomplish the data association, which utilizes the 2 test match combined with Nearest Neighbor association strategy to depress the dummy measurements. Targetoriginated measurement matched pair will be retained and fused to update the target track. Unscented kalman filter is deployed to target state estimation for both the dynamic and measurement model are nonlinear. Simulations validate the algorithm and conclusions.
Simulation and Experiment of Cold Forging for Spur Gear Based on Local Loading
Authors: Xu Feng , Xue Ke Min , Li Ping , Gong Dong Mei , Wang Gang Chao , Shi Wen Chao
Published: July 2011

The cold closed-die forging of spur gears brings the problems of great forming forces , low life of the dies and insufficent corner filling. The two-step forming technology is presented. First, the billet is pre-forged by closed-die forging for getting most of tooth profile. Second, the gear is finish-forging by local loading. The finite element method is used to simulate the cold forging process.The strain distributions, the stress distributions, velocity distributions and load-stroke curve are investigated.. The simulation results show that the technology can guarantee the full filling effect, and decrease the forming force remarkably. The results of simulation and analysis were verified by the physics experiment.
Numerical Studies on Mode-II Debonding along the FRP–concrete Interface in the Pulling Test
Authors: Qu Hong Chang , Xiong Zhi Qiang , Chen Ling Ling
Published: July 2011

The bonding of fiber reinforced polymer (FRP) plates or sheets to the concrete structures has been found to be an effective technique to improve the capacity. As a result, a large number of studies have addressed debonding failures in FRP-strengthened RC structures, with many of them being focussed on understanding the behaviour of simple FRP-to-concrete bonded joints in which an FRP plate/sheet is bonded to a concrete prism and is subject to a tensile force. With the help of features of FRP–concrete interface and experimental data in the literatures, a non-linear mode II interface law is presented. The proposed interface law includes non-linear contributions of adhesive and concrete cover at high shear stresses. The numerical results presented in this study show that FRP strains, shear stresses, slips and values of delamination force in the bonded region are in good agreement with experimental results. The agreement verifies the validity of the proposed interface law.
An Available-to-Promise System for Network-Manufacturing
Authors: Wang Wen Hao , Zhu Qiong , Zhang Jie
Published: July 2011

This Paper Presents Development of an Available-to-Promise (ATP) System for Network-Manufacturing in a Global Environment where Multi-Plants Are Manufacturing Products Collaboratively and Are Globally Networked. within the Multi-Plant Mode, the ATP Process Is Challenged to Give Not only Quick Response but Also Precise Order Promising by Considering the Coordination of Production Planning and Scheduling among Plants. in this Paper, an Order Decision and Production Planning Integrated ATP Model Was Developed and a Series of Performance Analysis Experiment Was Conducted to Reveal the Impact of some Key Factors such as Planning Horizon, Batch Interval Etc. on Overall Profit.
Study on Hydrodunamic Coefficients of Mini Automatic Underwater Vehicle
Authors: Gao Ni , Wang Bo , Sun Shu Zheng
Published: July 2011

Maneuverability is an important part of the vehicle’s general abilities.This paper uses sofware Fluent to simulate the planar movement mechanism(PMM) experiment while turbulence modle is adoped.The results of steady-state tests and unsteady-state tests could be analyzed to the hydrodunamic coefficients of a Mini Automatic Underwater Vehicle(AUV)and the dymatic mesh is adoped to simulate the motion of heave,sway,pitch,yaw.Finally, the motion simulation platform was built with the hydrodunamic coefficients and the motion performance of the vehicle was analyzed.
Temperature and Humidity Control System in Weaving Workshop Based on Wireless Sensor Networks
Authors: Jiang Shi Fen , Liu Gui Xiong
Published: July 2011

Aiming at Temperature and Humidity Control for the Weaving Workshop, a Remote Temperature and Humidity Monitoring System Based on Wireless Sensor Network Is Designed. with Using Industry-Standard ZigBee Protocol Network, the Monitoring System Is Composed of Wireless Sensor Network Nodes and Central Node Based on CC2430, and the LabVIEW Virtual Instrument Development Platform Management as Nodes of the Host Computer. Practice Shows that the Monitoring and Control System Is Simple, Reliable, Low Power Consumption, Low Cost Communication Etc.
Prediction Model in Electrodialysis Process Based on ANFIS
Authors: Jing Guo Lin , Du Wen Ting , Chen Xiang , Yi Huan
Published: July 2011

Fuzzy system is known to predict model in the electrodialysis process. This paper aimed to predict separation percent(SP) of NaCl solution as a function of concentration, temperature, flow rate and voltage. Besides, in the MATLAB, ANFIS(Adaptive Neuro-Fuzzy Inference System) based on Sugeno fuzzy model, its structure was similar to neural network and could generate fuzzy rules automatically. We obtained fitted values of SP by ANFIS. Then, we studied these influencing factors on fitted values of SP. Finally, we draw a conclusion that SP is in direct proportion to temperature and voltage, but in inverse proportion to concentration and flow rate.
Studying Fitting Effect by ANFIS in the Electrodialysis Process
Authors: Jing Guo Lin , Du Wen Ting , Zhou Quan , Li Song Tao
Published: July 2011

Fuzzy system is known to predict model in the electrodialysis process. This paper aimed to study fitting effect by ANFIS in a laboratory scale ED cell. Separation percent of NaCl solution is mainly as a function of concentration, temperature, flow rate and voltage. Besides, ANFIS(Adaptive Neuro-Fuzzy Inference System) based on Sugeno fuzzy model, its structure was similar to neural network and could generate fuzzy rules automatically, using the error back propagation algorithm and least square method to adjust the parameters of fuzzy inference system. We obtained fitted values of separation percent by ANFIS. Separation percent from experiments compared with the fitted values of separation percent. The result is shown that the correlation coefficient is 0.988. Therefore, it is verified as a good performance in the electrodialysis process.
Economic Effect Analysis on the Development of Mineral Resources in Tarim River Basin
Authors: Li Xue Mei , Zhang Xiao Lei , Du Hong Ru
Published: July 2011

Analysis of characteristics of mineral resources industrial development in Tarim River Basin, and taking the Bayingolin Mongol Autonomous Prefecture for example, from the contribution of the total amount and economic growth of mineral resources development, industrial development potential, the scale of employment, investment of fixed asset and resources tax analysis effect of economic of mineral resource development in Tarim River Basin. It find that economic effects of mineral resource development is also not fully played important role, in particular, the development potential of mineral resources industry declined, so the future mineral resources should be comprehensive and effective used, strengthening the deep processing of products and further extend the industrial chain.
Design and Implementation of the Control System for an ARM9-Based Biochemical Analyzer
Authors: Tao Ling , Long Wei , Wang Yan Qing
Published: July 2011

The design and implementation of the control system of an ARM9-based biochemical analyzer was introduced in detail. The S3C2440, an ARM9-based MCU, was the core of the control system. Precision regulator circuit of light of the analyzer was designed to stabilize the voltage supply of the light source. Closed-loop motor positioning control technology and freely programmable CPLD stepper motor sub-circuit technology were used to precisely position the grating. And flexible gain control technology based on digital potentiometers was employed to solve the problem of signal regulation. Such core technical problems was solved in succession, it thereby improves the instrument's performance and function and provides a number of inexpensive high-quality products for domestic small and medium sized hospitals especially rural hospitals and promoted the establishment of those hospitals in consequence.
Evaluating Head Mounted Display Efficiency by User Study
Authors: Song Hai Tao , Liu Huan Yu , Chen Dong Yi
Published: July 2011

Head Mounted Display (HMD) has been widely used in the area of wearable computing, augmented/virtual reality etc. The different image sources and optical subsystems of HMDs result in the diverse comprehensive display properties and optical properties. The traditional method to evaluate a HMD is modular transfer function. It requires special instruments, software and professional backgrounds knowledge, and thus leads to the lack of usability when it applied by common users. On the basis of human transfer function and Fitts’ model, in this paper we proposed an evaluation method, which has the advantage of easy applying. We evaluated this method targeting at a commercial HMD and a custom HMD, and the result shows that our method has a high usability.
Flow Field Simulation of Airfoil and Analysis of Vibration Modal Based on ANSYS
Authors: Peng Zhi Ling
Published: July 2011

By taking NACA0012 airfoil as the research object，the pressure distribution is given，based on the simulation of airfoil fieldflow field with ANSYS. Each modal characteristic is visually display ，by analysis on vibration modal of airfoil
Change Detection from Landsat TM Images Using Change Vector Analysis
Authors: Song Xiao Lu , Cheng Bo , Long Teng Fei
Published: July 2011

Change detection is a process of extracting, analyzing, and defining change information from remote sensing imageries. At present, remote sensing change detection methods are mainly classified into two categories, one based on the spectral characteristics of the type of approach, and the other is spectral change vector analysis. In this paper, a simplified threshold variable step-size search which can be used on determining changes in the threshold vector is adopted, as well as the supervised classification technique in the direction cosine space with the type of focal point in the initial assay vector remote sensing images. Results are discussed in the last part of this paper, which show that CVA can extract change information effectively in our study area of Wuhan city.
A Distributed Data Storage Method Based on Integrated Threshold
Authors: Liu Yi
Published: July 2011

Based on the analysis and study of the data storage strategy in wireless sensor networks, this paper presents a distributed data storage method based on sleep scheduling to resolve the problems of network imbalance and storage hot spots problems.Finally, multi group analysis of simulate experiments results show that compared to other data storage method the distributed data storage method based on composite threshold have obviously advantages on the sides of overall energy consumption,data storage capacity,the number of failure node and data quality,thus have a significant effect on reducing energy consumption and extending network life cycle.
The Transmission Efficiency Calculation for Series Combined Mechanism in Ordinary Gear Train
Authors: Yang Feng , Deng Xiao , Gao Zhi Hua , Liu Yang
Published: July 2011

The reasonable design of ordinary gear train system can enhance the transmission efficiency for mechanical device. Therefore, it is necessary to investigate into the efficiency and take the efficiency calculation as a method used for choosing gear train. Three typical conditions for ordinary gear train system, one internal meshing and one external meshing serial mechanism, two couples of external meshing serial mechanism, two couples of internal meshing serial mechanism, are respectively calculated. The calculating results can provide reliable reference for design of ordinary gear train.
Study on the Airflow Level Posture Sensor Based on Fluid-Solid Coupling
Authors: Ji Ming Ming , Piao Lin Hua , Li Bai Hua
Published: July 2011

Using ANSYS program, the finite element simulation based on Fluid-Solid coupling is conducted by a series of procedures, such as three-dimensional model building of airflow level posture sensor according to the actual size of the proportion, network modifying, loads applying and equation solving. The flow field in three-dimensional hermetic chamber of sensitive element of airflow level posture sensor is calculated. The numerical results show that: 1) The velocity difference of air flow at two heat source changes with the tilt angle, the difference between airflow velocity increases with the increase of the tilt angle. 2)Compared with two-dimensional modeling, the simulation result of three-dimensional modeling and fluid-solid analysis methods are more comprehensive and accurate, which provides more reliable basis for practical research of the airflow level posture sensor.
Three-Dimensional Modeling and Simulation for Airflow Inclination Sensor
Authors: Ji Ming Ming , Piao Lin Hua , Li Bai Hua
Published: July 2011

Using ANSYS-FLOTRAN CFD program, the finite element simulation is conducted by a series of procedures, such as three-dimensional model building of airflow inclination sensor, network modifying, loads applying and equation solving. The flow field caused by the two heats in three-dimensional hermetic chamber of sensitive element of airflow level posture sensor is Calculated, FEM analysis has been obtained. The numerical results show that compared with two-dimensional modeling, the simulation result of three-dimensional modeling are more comprehensive and accurate, which provides more reliable basis for practical research of the airflow inclination sensor.
Linearity Compensation of Air Level Posture Sensor
Authors: Li Bai Hua , Piao Lin Hua , Ji Ming Ming
Published: July 2011

In order to improve linearity of output signal of air level posture sensor, this article do the research about linearity to output signal based in the operation function of single chip of MSC1214, uses the ORIGIN software to process experiment data to get the linearity curve. The result indicates that misalignment of sensor drops to ≤1% in full scale scope, linearity between output voltage and the input angle has the enormous improvement, depressing the influence caused by angle approximation and improving the measurement accuracy of air level posture sensor.
Construction Technology Research of RC Beams Strengthened with Prestressed CFRP Plates
Authors: Chen Hua , Kang Kan , Deng Lang Ni
Published: July 2011

The method of applying prestress to CFRP plates can make full use of the characteristics of high-strength, enhance the force properties, prevent peeling damage and reduce the strain lag. Construction technology of prestressed CFRP plates strengthening reinforcement concrete beams was introduce in this paper, and bending test of 6 reinforcement concrete beams strengthened with prestressed CFRP plates were carried out based on the self-developed prestressed CFRP plates supporting anchorages. The test results indicate that the flexural capacity and crack resistance capacity can be increased compared with non-prestressed CFRP plates, and the construction technology can be adopted in practical projects.
Analysis on the Application of Multimedia Technology in Basic Chemistry Teaching
Authors: Guo Jian Zhong , Liu Li , Feng Yan Long
Published: July 2011

Directing at the characteristics of the basic chemistry, the paper discusses the characteristics of the “Inorganic chemistry”, “organic chemistry”, “physical chemistry” and “analytical chemistry”, and points out that application of multimedia in the basic chemistry is in line with student’s learning and cognitive rules. And multimedia teaching can greatly improve the teaching efficiency, extend the class size and optimize the teaching effect, which is an important way to teaching reform of course in the Information Age. Then it analyzes the unique role played in teaching by media. While, if multimedia technology is not rationally used in this field, the results will be counterproductive. We try to display the advantages of multi-media teaching and strive to overcome its fault in the teaching process. We also do some discussion on the effects of improving the teaching continuously.
Formation Mechanism of Chinese College Debts Based on Dynamic Game
Authors: Qiao Hai Shu , Feng Qin
Published: July 2011

In the last ten years, Chinese colleges have undertaken heavy debts. The formation of college-bank loans is the outcome of dynamic game among the college, the bank and the government. Based on the research of institutional changes about college-bank loans, this paper analyzes the role of institution played at the three-stage from 1999 to now. It is the role of government in this triangle game that determines the development of college-bank debts. Due to the lack of institution supply on colleges’ loans, which should be supplied by the government, the other parties in this game named colleges and banks are set in the plight. At last, Friendly institution should be created for college-bank loans in case of the repeat of that plight.
Research on Game Based Learning Application on the Higher Education
Authors: Yu Hong , Zhang Li
Published: July 2011

Based on the facts that the games were engaging and the learning was boring, the questionnaire was used to explore the inherent reason of the mismatch between the game and the learning. The statistical approach and association rules were used to analyze the results of the questionnaire. In the basis of the analysis, an effective GBL solution was proposed.
Problems and Countermeasures for Chinese Government Performance Auditing
Authors: Li Tie Qun
Published: July 2011

Along with the progressive development of the economic and political system reform, performance auditing has gradually been the central focus of the government and society, and it is imperative for the government to promote and implement the performance auditing. According to the statement on the basic theory and developing process of Chinese government performance auditing, the paper makes an analysis on the problems of government performance auditing, and proposes the relevant countermeasures on it.
The Motivation of Minor Enterprises Competition, Cooperation and Symbiosis
Authors: Li Liang Xian
Published: July 2011

The competition and symbiosis relation of minor enterprises results from their active participation and other factors. The main motivations of their symbiotic development are to integrate different resources of relavant enterprises, share benefits and risks, promote continuely rapid development. In network economy era, cooperative symbiosis is playing an important parts in enterprise strategic management and innovation.
Microprocessor-Based Control Using Local-Loop Approach in Robot Joint Movement
Authors: Lin Hsiung Cheng , Chen Chao Hung , Liu Liang Yih
Published: July 2011

In recent years, the robot development has been fast expanding to many areas such as entertainment, home task, security, medical care, etc. Accordingly, this paper proposes a simple but reliable robot communication interface and local-loop control system based on RS232 and 8051 microprocessor, suitable use for various kinds of robot control. In this proposed scheme, the robot action commands stored in the database using C++ Builder can be transmitted from the Command-Transmission Microprocessor (CTM) and then received by the individual authorized Action-Processing Microprocessor (APM) via RS232. Real-time implementation results are presented to demonstrate the effectiveness of the proposed approach in term of robust, simple, flexible and efficient performance.
Study and Implementation on Interface Self-Adaptive Technology for Pervasive Terminals
Authors: Zeng Xian Quan , Feng Yu Dong
Published: July 2011

In the pervasive computing environment, the users interact with the system through various terminals. How to adjust application interface according to the characteristics of terminals is very important in the pervasive computing system. In order to solve the interface diversity of pervasive terminals, an interface adaptive framework based on SVG is proposed. The framework adopts the hierarchical structure of separating interface and processing logic. By constructing the abstraction function mode of application, a uniformly SVG-based terminal interface is generated for different terminals. The simulation result shows that the framework has better practicability.
Data Conversion Based on XML
Authors: Wang Kun Ling
Published: July 2011

The Information system need to handle a large number of Excel reports, while Excel is not easy to deal with large amounts of data and information extraction. The technology XML tag can be applied to describe data in a text file, using Extensible Style sheet Language (xsl),the XML Data Relationship was conversed to prepare for display. The same XML data allows a variety of different style sheets, the sheets can be flexible displayed in various ways, using XML technology to create and resolve data, Excel reports can be achieved flexible and efficient import and export.
Culture and Characteristics of Human Induced Pluripotent Stem Cells
Authors: Liu De Wu , Li Yong Tie , Liu De Ming , Ning Pu
Published: July 2011

Human induced pluripotent stem cells is promising for regenerative medicine and tissue engineering. In this chapter, we focus on the culture and characteristics of human induced pluripotent stem cells. The induced pluripotent stem cells were plated on murine embryonic fibroblast feeder cells and expanded in human embryonic stem cells media contained basic fibroblast growth factor. The cells were passaged by collagenase IV digestion method and observed under invert microscope. The expression of alkaline phosphatase was detected by immunocytochemistry. The cultured induced pluripotent stem cells grew well and stability with similar characteristics of human embryonic stem cells. These cells also expressed alkaline phosphatase. They formed embryoid body in feeder-free and suspension culture conditions. The results provide an experimental basis for improvement of induction study and further application to generate patient-specific induced pluripotent stem cells.
The Verification of Computing J-Integral in Functionally Graded Material
Authors: Xuan Z.C. , Li Y.H. , Zhang Q.J. , Guan M.
Published: July 2011

We present a verification method for the finite element computation of the J-integrals in functionally graded material. An interval is obtained for the J-integral by an output bound procedure for the quantity of interest. The difference between homogeneous material and functionally graded material is that the parameter before the quadratic term in the error equation is a function of coordinates, not a constant in the homogeneous material. An optimal value for of the parameter is calculated for obtaining efficient bounds on the J-integral.
Numerical Simulation on Fluid Field of Different Structure Supersonic Atomizing Nozzle
Authors: Liu Xiao Bo , Li Yong Xue
Published: July 2011

A supersonic atomizing nozzle is the quite vital component in manufacturing superfine copper powders. The performances of the nozzle have a extremely major influence on the properties of copper powders. Base on the manufacturing technological conditions and the structural features of supersonic nozzle, the mathematical models of fluid field in the supersonic nozzle can be established. According to the method of computational fluid dynamics, the control equation is dispersed. The gridding is created by the means of free division. The finite element equations are set up by Galerkin. Then the impact of nozzle structures on airflow is showed. In the same situation of fluid parameters, the out velocity becomes higher by changing the nozzle structure. The result proves that quadric accelerating nozzle is better.