bluuebunny/crossref_metadata_2025 huggingface dataset:
A Novel Retrieval Method Based on Semantic Motion
Authors: Xiang Jian
Published: February 2012

With the widespread application of motion capture technology, three-dimensional(3D) motion data can be directly obtained. In this paper, a new 3D retrieval algorithm based on semantic motion is proposed. With semantic motion template and extracting key-frame, 3D human motion database can be processed effectively by retrieval. Experiment results show that our method can improve the accuracy of motion retrieval.
Development of a 3D Full-Field Monitoring System for Large-Scale Static Deformation Based on close Range Photogrammetry
Authors: Liu Jian Wei , Jiang Zhi Qiang , Liu Yuan Peng , Hu Hao
Published: February 2012

A non-contact deformation measurement method is proposed for monitoring the 3D full-field static deformation of large-scale structures under loads, which could not be achieved by traditional displacement sensors and resistance strain gauges. This method is based on the close range photogrammetry technology. By tracking and comparing the 3D coordinates of the targets between different epoch, the load–deformation diagram in 3D form for the whole large-scale structure is obtained, which is valuable for further mechanical behavior analysis. Real-scale power transmission tower experiment shows that the proposed method can fulfill the efficiency and accuracy requirement in large-scale full-field deformation monitoring task
Effect of Heat Treatment on Decay Resistance of Chinese Fir and Pine
Authors: Li Yan Jun , Du Lan Xing , Hu Gou Ying , Ma Xing Xia
Published: February 2012

To enhance decay resistance, the effect of heat treatment and the variation of chemical composition on Chinese Fir and Pine were investigated in this study — heat treatment temperature was 170°C, 190°C and 210°C, respectively, heat treatment time was 2, 3 and 4hours, respectively. Both of them were subsequently exposed to white-rot fungus and brown-rot fungus. The results showed that:(1) With the increasing of the heat treatment, decay resistance of Chinese Fir and Pine were improved, anti-corrosion of Pine after being heat treated at 190°C which were exposed to write-rot fungus can reach I, anti-corrosion of Chinese Fir after being heat treated at 170°C treated which were exposed to brown-rot fungus could reach I yet, After being heat treated at 210°C for 3 hours , the Chinese fir samples had no measurable weight loss when exposed to the write-rot fungus.(2) There was no remarkable influence on both Chinese Fir and Pine by heat treatment time.(3) The moisture content of Chinese Fir and Pine were lower than the moisture content that the rot fungus need, macromolecule chains such as cellulose and hemicellulose broke down, their contents decreased, and the hemicellulose decomposed into acetic acid, they prevented the growth of rot fungus.
Research on Rapid Detection Technology for Irregular Surface Products
Authors: Zhang Xin , Wu Da Wei , Li Yu Zhu
Published: February 2012

In this paper, the digital rapid detection system is established, which includes digital measurement technology, secondary development of CATIA technology, multi-point flexible clamping platform, and searching algorithm of positioning point. This system effectively solves the rapid detection and registration issues for space irregular surface products. The principle of digital rapid detection system is introduced. This instances shows that the system can greatly improve the space efficiency of the detection of irregular surface products, and makes the results more reliable.
Study on the Automatic Emergency Shelter Device of Tire’s Bursting
Authors: Chen Jian Guo , Yu Ying
Published: February 2012

Abstract. An emergency shelter device is proposed to address the major accidents of rear wheels out of balance due to the tire’s bursting of high-speed car. The design uses the support plate mechanism, in the moment of the tire’s bursting, which would balance the car automatically, when TPMS system issues commands. It achieves the purpose of supporting the car balance and travel that the curved design and calculation of the support plate using sliding friction and rolling friction mechanism, which could effectively avoid secondary accidents caused by the tire’s bursting and have a good prospect.
The Forecast of Demand Quantities of Emergency Commodities Based on Grey Interval Correlation Degree
Authors: Tang Wei Min
Published: February 2012

The accuracy of demand forecast of emergency commodities in unconventional emergency is closely related to the efficiency of emergency. In the early emergency, because of the incompleteness of information, the values of factors influencing the demand of commodities are undetermined. It is difficult to accurately predict the demand quantities of emergency commodities by general forecasting methods. This paper will denote the values of influencing factors of emergency commodities by the grey interval numbers, and the similarity of the goal case and the source cases in the case library by the grey interval correlation degree, and establish the model of demand forecast which integrates grey interval correlation degree and case-based reason in order to predict the demand quantities of emergency commodities.
Effect of Secondary Force on Rigidity of Oil Film of the Slipper Pair Based on Hydrostatic Support
Authors: Wang Hui , Wang Yu Xin
Published: February 2012

Rigidity of oil film is an important hydrostatic support performance of the slipper pair. This paper establishes the mathematics model of hydrostatic support structure on the basis of considering secondary force. And establish the simulation model of rigidity of oil film by using the toolbox of Simulink. Study the dynamic characteristics of rigidity of oil film under the influence of secondary force through computer simulation. And reach a conclusion that the impact of secondary force on rigidity of oil film has a relationship with friction coefficient and work pressure.
Application of Networked Control in the Reservoir Gate Monitoring and Control System
Authors: Zhang Peng
Published: February 2012

One kind of the reservoir gate monitoring and control system is developed, which is based on the operator station, remote control station, programmable logic controller and industrial network, to build a distributed networked control system. In this system, the position of the gate’s displacement is measured by a rotary coder that provides a Profibus-DP interface, and the reliability is enhanced. The communication program between the rotary coder and the controller is listed.
Distributed Measuring and Control System of Torque Rheometer
Authors: Wang Peng , Yan Jian , Chen Ting , Li Ming
Published: February 2012

This paper presents a new distributed control system used in torque rheometer. It can overcome shortcomings in traditional control system of torque rheometer and optimize overall performance of the system. The measurement and control system was designed by modeling method. The enhanced PID control algorithm and integration separation digital PID control algorithm were adopted to improve dynamic response characteristics. The Modbus communication protocol was selected as data link layer protocol of communications network. The monitoring software was developed by Visual Basic. A large number of experiments demonstrate that the stability of system is improved greatly and maintenance and extension of instrument become easier.
Empirical Analysis about the Relationship between Economic Growth and Financial Development: Evidence from China
Authors: Wen Yun Dong
Published: February 2012

This paper aims to use China as the research sample to investigate the relationship among economic growth and financial development. Degrees of financial development, financial efficiency, financial structure and financial freedom will be used to reflect China’s financial development. The empirical results show the financial development has no significant influence on China’s economic growth.
Evaluation Model for Urban Power Supply Systems
Authors: Kokin Sergey E. , Dmitriev Stepan A. , Khalyasmaa Alexandra I.
Published: February 2012

The present article deals with the issue of evaluation of state of urban power supply systems (hereinafter PSS). Such systems are characterized by large size and low reliability of the available data. The suggested evaluation model (EM) is based on elements of the fuzzy logic theory and on the informational graph structure of the power network. EM allows for evaluation of the PSS objects irrespective of their size. PSS object here stands for any part of the PSS, from power switch to complex PSS with substations and transmission lines of various voltage. Graph-based structure of the network model (NM) provides for connection between the objects and allows to select parts in necessary and sufficient detail. Evaluation is made by quantitative indicators that reflect performance of the objects in various spheres (technical, exploitation, ecological etc) with transition to qualitative states: normal, pre-emergency and emergency states.
The Design and Implementation of a High-Speed Parallel AES Crypto-Chip
Authors: Yang Jun , Zhang Wei Ping , Shu Ping Ping , Wang Xiao Jun , Zhao Ga , Yang Heng Fen
Published: February 2012

This paper direct to security and real-time requirements in high-speed network transmission processing, based on SOPC technology, design a High throughput AES encryption/ decryption processing unit with pipelining. The design goal is to optimize the hardware structure and improve the throughput, S-box design and parallel processing structure. Compared with traditional AES crypto-chip has faster rate with encryption and less consumption of resources advantages. This design adopts VHDL hardware description language, use Quartus II 8.0 for the synthesis and routing, and this processing unit is packaged an independent IP core, attached to the Altera provided the Nios II system, finally download and test validation on the DE2 development platform.
First-Principles Conductance Calculations of Ag-Al Co-Doped ZnO
Authors: Tan Hong Lin , Jia Cong Ying , Ge Xiao Xu , Xiang Chao
Published: February 2012

Based on Density Functional Theory (DFT) first-principles plane-wave ultra-soft pseudo-potential method, we calculated the electronic structure of wurtzite ZnO, Ag-doped ZnO and Ag-Al co-doped ZnO. And we anglicized of energy band structure, electron density of states of Ag-doped and Ag- Al co-doped ZnO crystal. The results indicated: Ag-doped ZnO introduced the deep accepter level in the energy gap, carrier (hole) located near the top of the valence band. And when we add active donor Al to the Ag-Al doped ZnO, the main level moved to low-energy, forming a shallow acceptor level. Meanwhile, the acceptor level got wider, non-localized features got significantly, improving the doping concentration and stability of the system.
A Simulation Approach for Analyzing MAS Model of SIS
Authors: Song Yi Ning , Li Zhi
Published: February 2012

The purpose of this paper is to explore the effective approach of Multi-Agent system(MAS) modeling and simulation. A detailed study of modeling and simulation of Space Information System has been carried out by combining controlled and intelligent requirements. To begin with we will provide a brief background on the Multi-Agent System concept and structure. Furthermore, grasp the model structure through vertical and longitudinal analysis with the consideration of emergence and collaboration. In addition, we described the Multi-agent model for Space Information System(SIS). Finally, algorithms of realizing the collaboration structures of the communication satellite system that presented in this paper were described.
Fault Diagnosis of Elevator Based AR Bi-Spectrum
Authors: Yi Jing Yu , Huang Yi Jian
Published: February 2012

According to the characteristics of the elevator fault vibration signals, proposing a Based on analysis of time series AR bi-spectrum elevator fault diagnosis. When the zero-mean, non-Gaussian white noise elevator device, the vibration signal using sampling to establish time series autoregressive model (AR model), resulting in AR bi-spectrum. Bi-spectrum signal processing is a new, powerful signal processing technology, which can be described the nonlinear coupling, suppression Gaussian noise and retention of phase information, you can get the elevator working status of the different dynamic characteristics. The results show that bi-spectral analysis with AR elevator failure is feasible and effective.
Flow Field Analysis of Conducting Trunk of Comb-Type Cotton Picker
Authors: Wang Chun Yao , Wang Xue Nong , Chen Fa , Liu Yue , Chi Jiu Peng , Jiang Wei Dong
Published: February 2012

This article uses the flow field numerical simulation technology, it does simulation research for the flow field of the whole pneumatic conveying cotton trunk, through studying different types of jet orifice of the conveying trunk of comb—type cotton picker, finding out the influence of jet orifice width on pressure and velocity field, further understanding flow field distribution characteristics of the internal pneumatic cotton conveyance system, and providing necessary basis for the machine.
Feature Selection Method Based on the Adaptive Genetic Algorithm-Kernel Partial Least Squares for High Dimensional Data
Authors: Yan Dong , Liu Shao Wei , Tang Jian
Published: February 2012

Feature selection for modeling the high dimensional data, such as the near-infrared spectrum (NIR) is very important. A novel modeling approach combined the adaptive genetic algorithm-kernel partial least squares (AGA-KPLS) is proposed. The KPLS algorithm is used to construct nonlinear models with the popular kernel based modeling technology. The AGA is used to select the optimal feature sub-set from the original high dimensional data, which also used to select the kernel parameters of the KPLS algorithm simultaneously. The experimental results based on the vibration frequency spectrum show that the proposed approach has better prediction performance than the normal GA-PLS method.
Four Interacting Electrons in a Vertically Coupled Quantum Dots
Authors: Wang An Mei , Wang Peng , Fan Li Bo
Published: February 2012

We studied the ground-state-transition of a vertically coupled four-layer single electron QDs system under a magnetic field by the exact diagonalization of the Hamiltonian matrix. For S=0, the energy spectra of the Dots are calculated as a function of applied magnetic field. We found discontinuous ground-state-transition induced by an external magnetic field in the case of strong coupling. However, in the case of weak coupling, such a transition does not occur.
Housing Decoration Lower Indoor Radon Concentration Survey
Authors: Luo Xiao Liang
Published: February 2012

Select a residential projects under construction in Chongqing for the study, testing on indoor radon concentration at different decorated stages. This survey found that indoor radon concentration values for the selected test points are lower than the national limits, meet the requirements. Through decoration, decoration materials such as cement mortar, latex paint, wallpaper, flooring and other ways to reduce indoor radon concentration is possible. The other hand, use of porcelain tiles will elevate indoor radon concentration, so you should master its radioactive contents in advance when you select the repair material, choose green materials as possible.
Heterogeneity Influence of Organic Matter on the Ozonation Chemiluminescence for Soils and Sediments
Authors: Liu Meng De , Fan Ping Ping , Yan Liu , Du Li Bin , Hou Guang Li , Wang Qian , Zhao Bin , Zhao Na
Published: February 2012

Organic matter in soils and sediments is the key object of biogeochemistry in both terrestrial and marine ecosystems. Whether organic matter is the source or sink of carbon and nutrients can be predicted by its compositions and need continuous, long-term observations of organic matter compositions; therefore, in situ technologies are being investigated to meet the continuous, long-term observations. This study tried to explore a rapid determination of organic matter compositions by ozone chemiluminescence. After the soils or sediments were oxidized by ozone, their chemiluminescence characteristics such as luminescence maximum and time differed significantly. We hypothesized that the luminescence characteristics is controlled by the organic matter compositions. The soils and sediments were separated into extractives, acid soluble fractions (AS), and acid insoluble fractions (AIF), and then the original samples and their compositions were oxidized by ozone. Different organic matter compositions play a different role in the luminescence characteristics: extractives inhibited the luminescence maximum and luminescence time, AS increased the luminescence time and AIF increased the luminescence maximum. Results also showed that AIF can explain most variation of luminescence characteristics, suggesting that the luminescence characteristics are mainly controlled by the concentrations of AIF. Our study suggested that ozonaiton chemiluminescence have a strong potential to rapidly determine the chemistry of soils and sediments.
Application of GRNN to Plan Trajectory for a Picking Robot
Authors: Wang Yan , Yao Hui Lin
Published: February 2012

In order to supply reference inputs for the robot system, a high-order polynomial function is proposed according to particular strategies to plan trajectory in joint space, which could provide continuous velocity, acceleration and jerk to ensure safety for electric actuators and stability of the robot during the motion process. The general regression neural network (GRNN) is constructed to realize the proposed polynomial function for its powerful non-linear mapping ability. Parameters of the spreading factor and number of training samples which influence the performances of the network are detailed analyzed. Simulation results show that GRNN has advantages of favorable stability and high precision of function approaching even with few samples. Finally, the trajectory planner based on GRNN is successfully applied for an articulated picking robot to realize the real-time control.
In Vitro and In Vivo Immunomodulatory Activities of an Acidic Polysaccharide from Gracilaria lemaneiformis
Authors: Fan Yan Li , Wang Wen Hang , Chen Hong Shuo , Liu Nian , Liu An Jun
Published: February 2012

The effects of an acidic polysaccharide from Gracilaria lemaneiformis (GLSPs) on the immunomodulation in vitro and in vivo were investigated. It was shown that GLSPs with different concentrations significantly promoted the splenocyte proliferation and macrophage phagocytosis in vitro. In addition, GLSPs also remarkably enhanced the splenocyte proliferation induced by ConA or LPS in mice, notably improved the macrophage phagocytosis towards neutral red, and increased the percentages of CD3+ and CD4+ cells in peripheral blood of mice. The results suggested that GLSPs has significant effect on immunomodulation, and may have biomedical material applications and potential use in stimulating the immune system.
Integral Backstepping Control for a PMSLM Using Adaptive RNNUO
Authors: Lin Chih Hong , Lin Ming Kuan , Lin Chih Peng
Published: February 2012

Due to uncertainties exist in the applications of the a permanent magnet synchronous linear motor (PMSLM) servo drive which seriously influence the control performance, thus, an integral backstepping control system using adaptive recurrent neural network uncertainty observer (RNNUO) is proposed to increase the robustness of the PMSLM drive. First, the field-oriented mechanism is applied to formulate the dynamic equation of the PMSLM servo drive. Then, an integral backstepping approach is proposed to control the motion of PMSLM drive system. With proposed integral backstepping control system, the mover position of the PMSLM drive possesses the advantages of good transient control performance and robustness to uncertainties for the tracking of periodic reference trajectories. Moreover, to further increase the robustness of the PMSLM drive, an adaptive RNN uncertainty observer is proposed to estimate the required lumped uncertainty. The effectiveness of the proposed control scheme is verified by experimental results.
Legal Practice Experience of early REDD Projects in Developing Countries and Enlightenment in China
Authors: Jing Zhen
Published: February 2012

This paper concludes legal practice experience of early REDD projects in developing countries, analyzes some important factors in building the domestic legal framework of REDD mechanism, and finally discusses enlightenment in constructing the REDD mechanism domestic legal framework, i.e. enacting REDD rules in China.
Microstructures and Mechanical Properties of AZ61 Mg Alloy Processed by Equal Channel Angular Pressing
Authors: Zeng Shao Feng , Yang Kai Huai , Chen Wen Zhe
Published: February 2012

Equal channel angular pressing (ECAP) was applied to a commercial AZ61 magnesium alloy for up to 8 passes at temperatures as low as 473K. Microstructures and mechanical properties of as-received and ECAP deformed samples were investigated. The microstructure was initially not uniform with a “bimodal” grain size distribution but became increasingly homogeneous with further ECAP passes and the average grain size was considerably reduced from over 26 μm to below 5 μm. The ultimate tensile strength (UTS) decreases clearly after one pass, but increases significantly up to two passes, and then continuously slowly decreases up to six passes, and again increases slightly up to eight passes. In contrast, the uniform elongation increased significantly up to 3 passes, followed by considerable decrease up to 8 passes. These observations may be attributed to combined effects of grain refinement and texture development.
A Rapid and Sensitive Acetone Gas Sensor Utilizing Thermal Desorption Coupled with Cataluminescence on Nano-Cr4TiO8
Authors: Zhou Kao Wen , Li Xin , Su Di , Yang Hui Zhu , Shen Xu
Published: February 2012

A rapid and sensitive cataluminescence (CTL)-based gas sensor using nanosized Cr4TiO8 as a probe was proposed for direct determination of acetone in air. Trace acetone was firstly absorbed on active carbon at room temperature to concentrate, then desorbed at 84°C to determine. The sensor showed high selectivity to acetone at wavelength of 430nm, satisfying activity at temperature of 366°C and good stability at carrier flow rate of 115 ml/min. The linear range of CTL intensity versus concentration of acetone was 2.5~150 mg/m3, and the detection limit (3σ) was 1.2 mg/m3. The recovery of artificial sample was 94.1%—106.2% by this method. The response to formaldehyde and ethanol was insignificant, and there was no response to SO2, CO and benzene.
Nonlinear Relation between Inflation and Economic Growth: Evidence from China
Authors: Chen Jian Bao , Du Xian
Published: February 2012

By using the quarterly data of CPI and GDP in China from 1992 to 2011, this paper builds a smooth transition regression (STR) model to study the nonlinear relation between inflation and economic growth. The results show that there exist two-way Granger causality relations between inflation and economic growth, and inflation has significant nonlinear impacts to economic growth.
Numerical Simulation and Experiment Research of the Whole Flow Field inside a Multi-Blade Centrifugal Fan
Authors: Gao Feng , Zhong Wei Yan
Published: February 2012

The full flow field model of a widely used multi-blade centrifugal was built, using the CFD method, the steady and unsteady numerical simulation of the inner flow in the fan at different working conditions are presented. The numerical simulation results were validated by contrasting to the experiment results. The results displayed the characteristics of the velocity field, pressure field and pressure fluctuate in the centrifugal fan. The results can provide basis for optimizing the fan design and the internal flow, and have important value of engineering applications in the increase of the overall performance in operation.
Numerical Simulation Analysis of Heat and Mass Transfer during Drying of Jujubes
Authors: Yi Xiao Kang , Wu Wen Fu , Cui He Lei , Li Jun Xing
Published: February 2012

A finite volume discretization method for solving the heat and mass transfer equations of drying jujubes was developed in this paper. Combined with the Labview program, development of a numerical simulation software for internal heat and mass transfer during drying of jujubes, and simulation of the drying process on the jujubes using the software. The results showed that the simulation results and experimental data were consistent.
A Distributed Phase Time Optimization Method of the Coordinated Control for Active Bus Signal Priority
Authors: Fang Sai Yin , Li Feng
Published: February 2012

Active bus signal priority controlling method at a single intersection bases on single bus flow priority, applying for coordinated control in many intersections .This paper comprehensively considered green wave of general traffic and bus traffic in every decision project, made the priority signal distributed phase time parameter, based on green wave band width of general traffic flow, general flow delay and bus flow delay, made a comprehensive benefit preferred model ,made the best decision, verified the controlling algorithm.
Optimization of Ultrasonic-Assisted Extraction of Flavonols and Anthocyanins from Blueberry Using RSM
Authors: Tian Yao , Yang Yu , Gao Ping , Wang Jin Hong , Xu Ya Qin , Yu Ze Yuan
Published: February 2012

Ultrasonic-assisted extraction (UAE) method was developed for continued extraction of flavonols and anthocyanins from Blueberry. Response surface methodology (RSM) was employed to optimize experimental conditions for extraction of flavonols and anthocyanins. Three major independent variables such as ultrasonic power (W), extraction time (min), liquid to solid ratio (mL/g) were studied. The optimal extraction conditions of flavonols and anthocyanins were determined as follows: ultrasonic power 512.7 W, extraction time 29.8 min, liquid to solid ratio 9.5:1 mL /g. Under a modified condition (ultrasonic power 510W, extraction time 30 min, liquid to solid ratio 10:1 mL /g), the experimental yields of flavonols and anthocyanins were 0.806mg/g and 2.903mg/g respectively, which were agreed closely with the predicted values (0.804mg/g and 2.899mg/g).
Organically and Silylation of Synthesis Nano- Clay-Magadiite
Authors: Huang Jung Jie , Shieh Yaw Nan , Wang Sea Fue , Lin Ming Liang
Published: February 2012

This paper is an investigation of the properties of covalently bonded magadiite/polyimide nanocomposites synthesized with magadiite and polyimide（PI）. Synthesized magadiite was organically modified by n-hexadecyl trimethyl-ammonium bromide (CTAB) and then grafted by γ-aminopropyltriethoxysilane (APTS) γ-glycidoxypropyltrimethoxysilane( GPS ) or γ-methacryloxy-propyltrimethoxysilane ( MPS ). XRD confirmed the formation of the CTAB-magadiite and showed that the basal spacing increased from 1.54 to 2.46 nm. Three silylating reagents, APTS ,GPS and MPS, were reacted with the CTAB- exchanged magadiite. The subsequent formation of the organic derivatives was confirmed by XRD (X-ray diffractometer), FTIR (Fourier transform infrared spectrometer), and 29Si CP-MAS NMR (Solid-state nuclear magnetic resonance ) spectra. The copolymerization of the APTS- GPS- and MPS- modified magadiite produced new layered silicate-organic compounds and each one contained covalent bonds between the interlayer spaces. This structure is dissimilar to that produced using conventional clay polymer systems in which the ionic interactions between silicates and organic modifiers are dominant.
The Finite Element Analysis of CLAC Beam
Authors: Du Chuang , Rong Xian , Liu Xue Jun
Published: February 2012

In this paper, a comprehensive numerical investigation is presented on the behaviour of ceramsite light aggregate concrete(CLAC) beam by the non-linear finite element method. The investigation includes the entire process of the beam from loading to failure. Numerical analysis results show that the flexural behavior of CLAC beam is obtained by numerical simulation,including load-deflection curve, cross section stress and crack development ect. Numerical simulation may replace the actual experiment for study on flexural behavior of CLAC beam.
Particle Swarm Optimization with Negative Gradient
Authors: Na Ri Su , Li Qiang , Wu Li Ji
Published: February 2012

Based on the standard particle swarm optimization, introduce the information about negative gradient to influence the update of velocities of the particles, proposed the particles swarm optimization with negative gradient , and make the movement of particles more pertinent. The result of computer simulation about several test functions indicates that the particle swarm optimization with negative gradient can improve optimization efficiency and get better results.
The Finite Element Model Improvement on Shear Behavior of RC Frame Columns under Lateral Bevel Load
Authors: Du Chuang , Yan Xi Kang , Zhao Hai Long
Published: February 2012

The finite element models of biaxial shear capacity of RC frame columns are investigated.The calculation results and experimental results are compared using the different models.It is shown that different finite element models are effectively used to simulate the RC frame column. However, the simplified model may save computer time and be more convenient for the numerical simulation. Finally, the bilateral shear correlation of RC frame column is investigated using the simplified model. The results indicate that the bilateral shear correlation of the RC frame columns with different quantity of stirrups in two directions accords with the ellipse law and the fitting formula is presented.
Workover Simulator Training Development
Authors: Yuan Qi Ji , Wang Qi Jun , Zheng Zheng
Published: February 2012

Workover training is one of the necessary ways to ensure the safety of underground work, While the simulator training is an important tool for workover. For the high cost of training for operations, risk, and poor repeatability characteristics, we use the simulator training to simulate workover issue and achieve the purpose of operating the training. The article describes a workover simulator function, structure and working principle, explains the workover simulator master console’s components, front console and graphic control system to achieve the main technologies and key issues in the Windows system. Finally, the article gets that simulator training detected overflow, wellhead pressure control after shut-in. The simulator hardware equipment is compact, portable, can be taken to service at the first production site.
Properties for Certain System of Linear Delay Functional Differential Equations
Authors: Yan Xin Zhou
Published: February 2012

In this paper, we consider the properties for certain system of linear delay functional differential equations, and get some criteria for oscillation and non-oscillation by utilizing the matrix measures.
Vehicle Path Planning Method Based on Particle Swarm Optimization Algorithm
Authors: Yu Sheng Long , Bo Yu Ming , Chen Zhi Min , Zhu Kai
Published: February 2012

A particle swarm optimization algorithm (PSO) is presented for vehicle path planning in the paper. Particle swarm optimization proposed by Kennedy and Eberhart is derived from the social behavior of the birds foraging. Particle swarm optimization algorithm a kind of swarm-based optimization method.The simulation experiments performed in this study show the better vehicle path planning ability of PSO than that of adaptive genetic algorithm and genetic algorithm. The experimental results show that the vehicle path planning by using PSO algorithm has the least cost and it is indicated that PSO algorithm has more excellent vehicle path planning ability than adaptive genetic algorithm,genetic algorithm.
Research on the Division for Functional Area of Evaluation of Intensive Use Based on Delaunay Triangulation and GIS – A Case of Functional Area for Residence in Qingyang
Authors: Pan Hong Yi , Gu Ji Rong , Zhou Jie Ming
Published: February 2012

The purpose of this paper is to realize the auto division for functional area of intensive use meanwhile the efficiency and accuracy was improved. Method employed is that functional area of evaluation of intensive use was divided based on Delaunay triangulation and GIS. The results indicate according to comparison between results divided by expert and improved method that :( 1) The 26 functional areas divided by expert were totally covered by the method for auto division based on Delaunay triangulation and GIS. (2) There were 8 functional areas that coincided with the method for auto division, account for 30.77%. (3) The other 18 functional areas belongs to part coincidence, account for 69.23%.
The Impact of Different Temperatures Pre-Steaming Treatment on European Beech
Authors: Yuan Hui , Li Jing , Chen Yong , Yi Song Lin
Published: February 2012

European beech specimen by respectively 100 °C, 120 °C, 160 °C of steam pretreatment and then conventional drying. In accordance with GB 1932-80, GB 1934.2-91, GB 1934.1-91, GB 1933-91 and the surface defects after drying and then explore the different temperatures of steaming pretreatment on the European beech’s shrinkage, swelling, water absorption and density of material impact. Ultimately determine the temperature of steaming pretreatment which can enhance the dimensional stability.
Study on Cross-Cultural Communication and Cooperative Learning in Web Environment
Authors: Liu Jia Jun , Li Feng Yun , Ren Li Li
Published: February 2012

[Aim] The thesis is mainly about the great impact of cross-cultural communication and cooperative learning in web environment on students’ foreign language level, cultural awareness, affective factors, cooperation ability and independent ability. [Methods] We carry out practical activities of cross-cultural communication and cooperative learning by means of experimental teaching, video conference, E-mail inside and outside the class and giving priority to computer aided international cultural exchange form, as en elective course. [Result] Most students are positive about cross-cultural communication and cooperative learning under web environment in developing students’ cooperation ability, independent ability, affective factors and cultural awareness(M=4.059, SD=0.732). Subjects who are convinced to totally convinced that web learning environment greatly enhanced their cooperation ability and independent ability account for 92.4% and 78.2%; subjects who greatly approve that the web environment does good to learning account for 72.4%; students who agree the web environment could improve developing positive emotion in learning account for 88.8%; and also 84.1% of subjects believe that the web environment can improve their cultural awareness in language learning. [Conclusion] Cross-cultural communication and cooperative learning in web environment offer an ideal learning environment, increase opportunities to output or input, improve their cultural awareness in language learning, encourage and support affective factors beneficial to language learning and develop consciousness and ability of self-studying and cooperation.
Water Environmental Quality Evaluation Based on Visualize Classification for Huangbizhuang Reservoir of South-North Water Transfer Project
Authors: Zhang Da Lei , Li Yi Han , Sun Ying Jie , Qiao Fan , Lv Mou
Published: February 2012

According to the water quality monitoring data for Bashang section of Huangbizhuang reservoir conveying water for South-North Water Transfer Project from 2006 to 2009, individual evaluation, quarterly evaluation and overall merit were employed for water environmental quality evaluation with visualize classification on the ground of water quality standard classification, the results indicated most of individual evaluation indexes were within class Ⅰ or Ⅱand the indexes of quarterly evaluation and overall merit were with class Ⅰ which the third quarterly evaluation index was higher than that of the other three quarters, thus overall water quality was good enough for satisfying water quality
The Empirical Research of the Effect about Communication Trust and Commitment on Supply Chain Cooperation
Authors: Wang Li , Zhao Pan Hong , Qu Han Yu
Published: February 2012

A hypothesized model of the influence order and interrelation about three main measure factors (communication, trust and relationship commitment) on long term relationship-oriented was established from the formation of supply chain cooperative relationship. Structural equation model was used to verify the model. And relationship commitment was measured from three dimensions of income commitment, affective commitment and witching cost. With the questionnaire survey of supply, manufacture, distribution and retail companies, the empirical results show that during the formation process of supply chain cooperative relationships, cooperative enterprises start from communication, and then create the mutual trust, thus develop long term relationship by enterprises commitment. Communication and relationship commitment have a direct impact of long term relationship-oriented, while trust has an indirect effect on long term relationship-oriented. Trust has a significant effect on witching cost in relationship commitment, while witching cost has a significant effect on long term relationship-oriented.
Research on the Mathematical Models for Refractory Castable Corrosion by Molten Slag
Authors: Li Yong Qi , Guo Han Jie , Shao Jun Ning
Published: February 2012

In this paper, refractory castables was used for the simulated erosion experiment of RH snorkel in the laboratory, then these data which were got from experiment were analyzed by using spss software, and two mathematical models at slag-gas interface and slag-steel interface of refractory castables were obtained, this models established two relations between slag compositions and erosion degree. Subsequently, the two models were analyzed detailedly, the results indicated two models were consistent with the corrosion of refractory castables . Therefore, the two mathematical models have a certain guidance to the practical production.
Study on Thermal Analysis of Dome in LAMOST
Authors: Li Rong , Shi Hu Li , Chen Zhi Ping
Published: February 2012

LAMOST（Large Sky Area Multi-Object Fiber Spectroscopic Telescope）is a breakthrough on astronomy in China, and is also in the lead on astronomy in the world. During the design, the seeing of telescope LAMOST is one of the most important aspects. While the temperature difference in the dome is the significant factor that affects the seeing, the temperature distribution in the dome must be controlled. The thermal distribution of the dome in telescope LAMOST was calculated and simulated by Icepak software. The emulation demonstrates that without any cooling project, the discipline of the temperature distribution in the dome around the first mirror Ma is nice enough to achieve a good seeing while the mirror Ma is in the partly open globular structure. According to these results, there is no need to working out a cooling scheme to improve the thermal circumstances of the dome. The result of emulation is approximate to the experiment temperature distribution of the Ф2.16m telescope that is closely near to the LAMOST, which makes significance to improve the seeing of the dome and to develop the dome’s design.
Analysis for 3-D Seepage Field of Gravity Dam Foundation
Authors: Xu Rui Rong , Zhan Wen Ting , Xu Qing
Published: February 2012

An equivalent method that simulate drainage holes is adopted in the analysis of 3-D seepage field. The Initial Flow Method is applied in this paper to deal with the unconfined seepage problem. In this paper, the finite element model of a gravity dam project is established and the seepage field is analyzed.
An Experimental and Numerical Investigation of the Performance and Dynamic Effects of a Shrouded Centrifugal Pump, Part 1
Authors: Mushatet Khudheyer S. , Wahab Abdul Kareem A. , Ajeel Wissam H.
Published: February 2012

In this paper, an experimental and numerical study has been conducted to investigate the performance and dynamic effects of the centrifugal pump . Two impellers having different diameters were tested. The aim of the present study is to extend the scientific research of the related studies to high speed centrifugal pump which has a logarithmic profile. The variation of dynamic pressure fluctuations on the front wall of volute casing around the impeller is predicted at different values of volume flow rates. Also the pump performance was tested for the considered values of the volume flow rate. The governing partial differential equations of continuity and momentum were dicretised to algebraic equations by using CFD commercial code(FLUENT 6.3). This code has the ability to transfer the complex physical domain to a computational one by using GAMBIT software. The effect of turbulence was simulated by using a standard k-ε model. The obtained results show th at the dynamic pressure fluctuations significantly dependent on angular position and volume flow rate. It is observed that the pump efficiency is increased as impeller diameter increases.
Assess the Effect of the Foot and Mouth Disease Type O Inactivated Vaccine (O/MYA98/BY/2010 Strain) for Pigs
Authors: Li Ke Bin , Liang Jian Ping
Published: February 2012

Recently, O-type foot and mouth disease epidemic situation has changed, there has been MYA98 epidemic strains, has caused many Asian countries for many kinds of animal damage. In January 2011, a new matching vaccine developed, namely Foot and mouth disease type O inactivated vaccine (O/MYA98/BY/2010 strain). In order to master this vaccine effectiveness in pig production, all the individual pigs in the ten farms had been immunized.A total of 97786 individuals or times immunized pigs were observed. All pigs were traced surveillance for foot and mouth clinical signs. A total of 295 serum samples were detected for antibody titers.The results show that although there adverse side effects, but other than the vaccine adverse reactions and extent has significantly decreased, pigs immunized were non-occurrence of type O foot and mouth disease, the antibody titer is eligible. So here we show , the vaccine is safe and effective, can be widely used.
Construction of Response Vectors in Yeast for Environmental Estrogen Bioassay
Authors: Zeng Shu Lan , Diao Yong , Li Qing Song , Yang Hui Yong
Published: February 2012

The environmental estrogen can be measured in modified yeast cells by transcription activation of reporter genes. To establish such yeast estrogen system, the full-length human estrogen receptor (hER) cDNA and estrogen responsive elements (EREs) linked to the upstream of CYC1 promoter were cloned into the yeast expression vector via pPIC9 vector respectively to construct the response vectors named as pER-PIC9 (E-9) and pERE2-CYC-PIC9K-EGFP (EC-9-E), which were transformed into Pichia pastoris at the same time for detecting environmental estrogens based on yeast Enhanced Green Fluorescence Protein (yEGFP) as a reporter protein. In the present study, we developed a rapid yeast estrogen bioassays by creating stably transfected strains with EGFP as a measurable reporter protein.
A Two-Tiered Architecture of Wireless Sensor Network Using Multitier Protocols for Structural Health Monitoring
Authors: Zhou Yue , Liu Shuai , Tang Shi
Published: February 2012

The design of wireless sensor network for structural health monitoring systems requires high sampling rate, real-time communication, low-energy consumption, particularly in large-scale networks. However, some commonly available architecture and protocols are not fully suitable for this special application. In this paper, the requirements of wireless sensor network for structural health monitoring application is studied and a two-tiered architecture network where is an IEEE 802.11 wireless local area network on top of an IEEE 802.15.4 structure area network is proposed as a solution. OPNET Modeler is applied to analyze the performance of the network, and the simulation results show that the two-tiered architecture network provides more reliable services with reduced end-to-end delays and lower energy consumption in the underlying sensor network.
A Multi-Platform Compatible and Open Software Architecture for Computer Numerical Control Systems
Authors: Jiang Jing Jie , Tan Hua Qing , Yao Bo
Published: February 2012

Abstract. By analyzing the current open software architectures for PC-based master-slave Computer Numerical Control(CNC) systems and soft-CNC systems, this paper put forward a multi-platform compatible open software architecture for the two types of CNC systems. The architecture is composed by five different function layers: CNC presentation Layer, CNC Business Layer, CNC Data Layer, NC Interface Layer and NCK Layer. Firstly, the WPF and the MVVM pattern decouple the User Interface (UI) presentation and business logic. Secondly, the component technology is used to decouple the business logic and Numerical Control(NC) functions. Thirdly, the implementation of NC tasks is put into non-RT environment and RT environment. The experiment results of developing the application based on the architecture show that the layered software architecture improves the maintenance and development efficiency, and running the application in the “non-RT+RT” environment proves that the architecture is available for PC-based master-slave CNC systems and soft-CNC systems.
Application of SOM Network in Ship Pipeline Leakage Detecting
Authors: Yin Hong Hao , Chen Hui , Peng Zhong Bo
Published: February 2012

At present, ship pipeline leakage has become a great hidden risk of safe navigation and environmental pollution, but piping detecting technology mostly focuses on long-distance oil and gas pipeline, and does a little on the complicated pipeline system, for example, ship pipeline system. The frequently-used leakage detecting of negative pressure wave method, because the frequent adjustable pump or reset valve of ship pipeline system will also produce the negative pressure wave, may easily fail to report or even misreport. In order to monitor ship pipeline leakage effectively and greatly reduce fault alarm rate and missing alarm rate, SOM network (self-organizing feature map neural network) had been used to identify leakage from different working conditions. At first, the waveform characteristics of pressure and flow signals were analyzed by kurtosis calculating to obtain condition eigenvectors. From data sampling in terms of pipe working conditions, learning samples were obtained. Accordingly, the nonlinear mapping between SOM neural network inputs and outputs were well established via training. Afterwards, ship piping leakage was detected based on input eigenve
A Study of Analysis and Simulation of the Valve Ball’s Lapping Instrument with a Cup Shaped Cutter
Authors: Lan Pi Xiang , Hu Guo Qing , Zheng Zi Wen , Deng Xiao Fan , Hou Feng Yuan
Published: February 2012

The valve ball is one of the most important parts in the ball valve. Lapping is a very important pressing method in valve ball’s production. A valve ball's lapping instrument with a cup shaped cutter, and build the lapping mathematics model is studied in this paper. To build the mathematical of valve ball, theoretical analysis and the simulation, the results proven that some key parameters could be properly controlled to improve the lapping process.
140 GHz SIW Planar Antenna
Authors: Cai Ben Xiao , Wu Yue Li , You Su Ping , Huang Hua
Published: February 2012

In this paper, a novel mm frequency SIW antenna is presented, which is a planar taper slot antenna owns function of high gain advantage. The max gain of the antenna is 7 dB. The frequency width of the antenna is 10 GHz.
A Framework Design of Spatial Gamut Mapping
Authors: Li Xiao Zhou
Published: February 2012

The common filters used in spatial gamut mapping algorithms were studied in this paper which included Gaussian filter and bilateral filter based on spatial gamut mapping theory. And one framework of spatial gamut mapping oriented to digital printing was designed which combined the printing image characteristics and reproduction requirements. The framework combined printing image processing technique and gamut mapping technique and the results help to choose or develop better spatial gamut mapping algorithms oriented to digital printing.