bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on the Improved Recession Binary Tree Algorithm
Authors: Yang Gui Hua , Ma Jun Chi , Cui Lian , Gao Yu Kai , Xiong Chun Yu
Published: August 2014

Tag collision problems seriously affected the performance of the RFID system. In order to solve this problem, we proposed an improved Recession Binary Tree Algorithm to avoid duplication and redundancy search, so that system throughput can substantial increased in the case of there have large quantities of labels.
Application of Tracer Test in Survey of Hydraulic Connection between Water Gushing and Fracture Water in Karst Tunnel – Taking Zhongjiashan as an Example
Authors: Zhang Xiang Wen , Wang Tao , Cheng Sheng Gao
Published: August 2014

The field tracer test is dropping quantitative tracer materials in the entrance of ponor upstream and to monitor online concentration of tracer materials in the main export of underground river downstream, and then deduce the type of groundwater pipe and the source of supply according to the concentration. This thesis takes the landslide areas in highways across form Quanzhou to Nanning and in tunnels connecting Ji’an with Zhongjiashan in Lianhua (a town in Pingxiang) as the research object, explores the supply source of tunnel water, meanwhile uses three tracer materials of different nature, namely the fluorescein sodium, fluorescent whitening agent and rhodamine, to place 4 drop points and 3 receiving points within 20 square meters of the surveyed area, to conduct groundwater tracer test. The test shows that there is no obvious connection between tunnel water gushing and F5 fracture main ditch surface water as well as F5 tectonic fracture zone; Fault F2 has good conductivity, and the gushing water in the right hole in the import and export of tunnel is related with F2 fault tectonic fracture zone.
Study on the Martial Equipments’ Maintenance Project Management Process
Authors: Dong Peng , Luo Zhao Hui , Zhang Wei Hong
Published: August 2014

The maintenance project of martial equipments is a task to guarantee the reliable run or eliminating a certain hidden trouble of martial equipments, by using fund, equipments, manpower, through reasonable organizing form, and be accomplished in stated time limitation. The maintenance management of martial equipments is an important content of martial management, and the maintenance management level of martial equipments becomes an important factor to influence the enhancement of equipments’ warfare ability. At present, our management method cannot adapt to the requirement of martial equipments’ development. The maintenance management of martial equipments is a kind of all-round management engineering. Along with the produce of more and more high-tech martial equipments, maintenance management has to face more and more big pressure. The maintenance management of martial equipments has the characteristic of specific aim, restriction of fund and time, one-off point, and there are various kinds of risks exist during the process of martial equipments’ maintenance, that is the basic characters of project. Then, using the method of project management to guide the work of martial equipments’ maintenance is bound to make the maintenance work more and more systemic and standard.
Using the Apple iPad to Facilitate Teaching and Learning in the Classroom: A Pilot Study
Authors: Liu Bin , Gong Chao Hua
Published: August 2014

iPads and their applications (also known as “Apps”) have become popular worldwide with a broad range of users since it released in 2010. Despite its wide use in research and practice, there is little empirical research that addresses what educational value iPad provided for both teachers and students in the classroom. This study aims to explore the potential advantages of iPad for classroom teaching and learning. To address this research goal, this case study reports findings from a four-week pilot study of using iPad with 6 teachers and 144 students in one primary school in Beijing. The results show that six advantages of using iPad facilitating teaching and learning, including rich applications for education, immediate interaction and feedback, capturing learning activities process, Information search and collection, collaborative creating products and wireless display. The findings contribute to the research concerning the advantages of using mobile learning devices for facilitating students’ active learning in the classroom.
Effects of Gas Nucleus on Cavitation Inception and Bubble Characteristics inside V-Throttling Groove
Authors: Du Xue Wen , Fu Xin , Tang Hang Bin
Published: August 2014

The paper combines CFD simulation and high-speed observation experiments to analyze the forming mechanism of high-speed cavitation flowing inside V-groove. It is found that the formation and development of cavitation are greatly affected by the cavitation nucleus, and subjected to two flow patterns, shear flow and vortex. When the groove is shallow or valve opening is small, cavitation inception occurs in the strong shear region near the throttling edge, which is related to the separation of boundary layer and the wall attachment effect. As the depth of the valve port increases, the reflux becomes stronger at the back of the throttling edge, which complements the low pressure area generated from the fluid separation. At the same time the pulsation is formed in the downstream due to the large longitudinal velocity gradient, resulting in vortex, and the area of ​​low pressure in the center of vortex also leads to the generation of cavitation.
Combustion Characteristic Parameter Testing and Caculating of Single-Base Propellant
Authors: Chen Yong Kang , Chen Ming Hua , Zhang Li , Zhao Ran , Wen Jian
Published: August 2014

Combustion characteristics of single base propellant are tested with closed bomb. Combustion characteristic parameters are calculated through P-t curves. Gunpowder force f=974.30J·g-1, covolume α=1.111cm3·g-1. Laws of combustion rate are u=4.97×10-3P0.82 (charge density Δ1=0.10g·cm-3) and u=3.97×10-3P0.86(charge density Δ2=0.16g·cm-3).
Design and Simulation of the Biomimetic Flexible Fish Fin Propeller on Submarine
Authors: Lan Zhen , Jiang Shao Jie
Published: August 2014

Currently, there is an absence of underwater monitoring device in marine ranching area. the traditional submersible generally use screw propeller as its power equipment, but it lacked the rapid response, short turning radius and so on. Recently some bionic propulsion methods have emerged, which partly solved the problems above but still fail to meet the demanded properties. We used shape memory alloy combined with the design of robot fin to increase the flexibility, add the degree of freedom and higher the efficiency of the biomimetic flexible fish fin propeller.
Impact Study of Mass Eccentricity of Sniper Rifle Bullet on Initial Disturbance
Authors: Liu Guo Qing , Xu Cheng
Published: August 2014

The bullet-rifle coupling model of sniper rifle has established to study the impact of bullet mass eccentricity on initial disturbance. This coupling model was established based on nonlinear finite element method and used to simulate the launch process of sniper rifle under the condition of gravity static equilibrium in the method of the mixing calculation which had advantages of both dynamic explicit algorithm and static implicit algorithm. The impact of different initial position of mass center on bullet swing angular displacement and centroid displacement was considered. Numerical calculation results shows that bullet mass eccentricity has a great influence on initial disturbance, the bullet swing angular displacement and centroid displacement is closely related to initial position of mass center. In addition, there is proportionality between bullet swing angular displacement and axial velocity before it reaches limit. That is helpful to carry out further study of how to control the influence of mass eccentricity on initial disturbance.
Modeling and Analysis of Wire Rope in the Drilling Device Using ANCF Method
Authors: Zhang Yue , Wei Cheng , Zhang Jiang , Zhao Yang
Published: August 2014

The wire rope of drilling device is modeled by using absolute nodal coordinate formulation (ANCF) which is presented for the analysis of three dimensional flexible cable in this paper. This formulation is suited for the analysis of large rotation and deformation problem. Only axial and bending deformations are taken into account in this paper, which increases the computational efficiency without affecting the precision. Vibrations of the drilling mechanism and the wire rope under different preloads are simulated. It can be seen from the emulational results that resonance will occur when the preload increases to a certain value and the amplitude is the largest in this case.
Research on Real-Time Plotting of High-Speed CNC Laser Cutting
Authors: Hu Qiu Xu , Xu Yue Tong , Wang Zheng Tuo , Yang Meng , Wang Qing Yuan , Fu Kai Ge
Published: August 2014

According to the confusion effect of processing route drawing, few sampling points and contradiction between timing accuracy and system fluency of Windows system in high-speed CNC real-time plotting process, this paper presents a method based on Windows environment to achieve real-time plotting goal of the machining contour in high-speed CNC laser cutting process by pretreating G codes and interpolation algorithm improvement. Experimental research was implemented and this method has already been successfully applied to practical production. Comparing to traditional real-time plotting method, this method can not only achieve faster real-time plotting, but also ensure accurate graphic drawing quality and meet the demand of practical circumstances. This method, put forward by the author in addressing real-time plotting problem of laser cutting, can be equally applied to other two-dimensional high-speed cutting occasions.
The Research on the Checking Experiment Scheme of the Digital Simulation of the Toroidal Worm and the Manufacture of the Tested Worm
Authors: Xu Hua , Wen Rong Tian , Wen Qing Ming
Published: August 2014

The research on the digital simulation of the toroidal worm has been finished. To checking the simulation result, the contrastive experiment between the simulation worm and the practical worm need to be carried out. In this paper, the experiment scheme of the simulation and the manufacture of the tested worm are analyzed in detail.
The Study of Eliminate Companies Seven Wastes of Enterprises Based on the Theory of Industrial Engineering and Lean Production
Authors: Zhang Jin Chang , Yin Hong , Jia Hui Min
Published: August 2014

The phenomenon of waste in enterprise production process is very common, how to eliminate waste in order to reduce these costs has been become a key issue for enterprise managers. In this paper, seven waste from the point of lean production: inventory, overproduction, waiting, unnecessary transport, extra action, defective products and excess processing have been analyzed, and eliminates waste which is widespread in enterprises based on the theory of industrial engineering, lean production and other technology-AHP analyzes the effect of implementation have been used.
The Reliability Analysis of Cut Angle Fuzzy of Chimney Demolished by Controlled Blasting
Authors: Gong Xiang Chao , Zhong Dong Wang , Li Ming
Published: August 2014

Cut angle is one of the best important parameters of chimney demolished by controlled blasting. The suitable angle is effected by a lot of factors. But mechanical principle is not entirely clear. The theoretical value of angle is usually designed by experience formula . At the same time, the factual angle made by blasting is also fuzzy and random. So in this paper, the formula to calculate fuzzy reliability of cut angle is derived according to fuzzy reliability theory. It provides an credible parameter for engineering blasting designer. Linear memberships function is adopted for theory value of cut angle and the factual blasting angle is a random variable which is suggested to be normally distributed. At last, an engineering example is given to verify the method of this paper.
The China’s Railway Diversification Management Strategy under Modern Logistics Environment
Authors: Zhu Wen Xiao , Lang Mao Xiang
Published: August 2014

Under the good developing environment offered by China's macroeconomic policies, modern logistics has become an important power of the economy development. Meanwhile, as the national economic artery and important infrastructure and popular transportation, railway plays a vital role in China’s economic and social development. Therefore, to effectively promote the development of national economy, as one essential link of modern logistics, railway should comply with the development characteristics and direction of modern logistics. This paper proposes that railway should adapt to the large scale development trend of modern logistics on the premise of ensuring the social benefits and obtaining the people's accreditation, and develop railway’s diversification management strategy to expand railway market gradually based on the actual needs of the market. This paper put forward three aspects, they are necessity, unique principles and main strategies which offered for carrying out railway’s diversification management strategy.
Design of the Control System for Fully Automatic Steel-Tube Molding Machine
Authors: Tang Si Chao , Yao Jia Ming , Zhu Shou Xin , Wang Meng Sheng , Fang Jia Na , Tao Xue Heng
Published: August 2014

In order to develop the control system for fully automatic molding machine which runs stable, reliable and high-automatically, its operational requirements analysis are studied deeply, based on the analysis of present research and development situation on domestic and foreign molding machine, this paper analyses its mechanical structure, working principle, hydraulic system. Finally, the author designs the FX2N PLC control system and briefly describes designing method and characteristics of hardware and software, which solves the problem: the low efficiency of domestic steel automatic stacker molding, collision quality loss and coordination of multiple devices in transit.
Electromagnetic Mixing Laser Guided Mode and Laser Site Positioning
Authors: Li Long , Dong Xue Ren , Ma Yu Zhen , Cui Qiu Yue
Published: August 2014

In recent years, Automatic Guided Vehicle (AGV), as a mobile robot, has been developed rapidly, especially with the rapid development of sensor technology, navigational technology has been widely used in the field of automatic guided vehicle. Meanwhile, the guidance mode has broken through the single way of track-laying and is developing towards a diversified direction. This paper elaborated the operating principle and the advantages of several commonly used ways of guiding, put forward the way of guiding which combined laser guidance with electromagnetic guidance and laser site positioning.
Non-Linear Path-Following Control of Micro-AUV
Authors: Ji Xing , Zhang Lei , Cao Jian , Ma Shan
Published: August 2014

A novel path-following control method of under-actuated AUV is proposed in this paper. Under the Serret-Frenet coordinate system, dynamics equations of path-following error were established based on virtual target AUV. And then combined with dynamics equations of AUV, controller was designed based on Lyapunov stability theory and backstepping technique. Simulation results showed that path-following error could converge to zero rapidly by using the proposed non-linear feedback control law, to make the AUV navigate along the referenced path.
Application Study of the Automotive Active Collision Safety System
Authors: Niu Qin Yu , Cao Zhi Chao
Published: August 2014

This paper introduces the principle of automotive active collision safety protection system. Establish the speed relationship that our car with the car of before and after model for calculating the safe distance. Introducing the visibility, coefficient of road adhesion and other factors. The model of calculating the safe distance closer to the actual driving environment, the model of calculating the safe overcome the existing safety distance model in some special environment the safety distance small or large defects.
Research of Paddle Wave-Maker Control System Based on Jonswap Spectrum
Authors: Huang Xue Fei , Pang Mao
Published: August 2014

According to large energy consumption, overload and re-reflection problemr, the control algorithm of wave-maker has been improved based on Jonswap spectrum. The control algorithm is comprised of the offline calculation of the control waveform and the real-time governing of the wave paddle. Offline algorithm is implemented on a personal computer, whereas paddle control is realized on a programmable automation controller. The experiments results show that the speed is continuous and stable, change rate of load has been optimized obviously and achieves the purpose of energy saving.
Queue Delay Model and Simulation for TTCAN
Authors: Wang Wei , Qin Shu Min , Tian Xing Ke , Zhang Jian Wei , Li Fu Xin
Published: August 2014

This paper analyzes the transmission characteristics of TTCAN bus and builts TTCAN bus delay equation. TTCAN bus line on average delay modeling analysis, through analyzing the TTCAN bus line average delay modeling analysis, using computer simulation tools, creates a transport simulation model TTCAN bus.
Switching Control Design for Switched Fuzzy Discrete-Time Systems
Authors: Yang Hong , Lü Huan Huan , Zhang Le
Published: August 2014

This paper investigates the problems of stability analysis and stabilization for a class of switched fuzzy discrete-time systems. Based on a common Lyapunov functional, a switching control method has been developed for the stability analysis of switched discrete-time fuzzy systems. A new stabilization approach based on a switching parallel distributed compensation scheme is given for the closed-loop switched fuzzy systems. Finally, the illustrative example is provided to demonstrate the effectiveness of the techniques proposed in this paper.
R&D of Visualization Control System for Differential Reactor
Authors: Chen Chen , Chen Wei , Qiu Hua Dong
Published: August 2014

An intelligent control system for Differential Reactor is proposed based on the intelligent visualization control system, in order to reduce the complexity of process and temperature control during the operation. The Man-Machine Interface Unit is developed based on touch human-machine interface, this unit can be used to monitor and test the change of the parameters during Differential Reactor operation. At last the unit in combined with the Fuzzy PID-type controller. The practical tests performed in this article show that the new system can monitor the Differential Reactor in real-time, can effectively improve the visibility of the production process, simplify the system control, and effectively reduce the system failure rate.
The System Design of Wireless Video Transmission Based on PTZ Control
Authors: Huan Shi Yu
Published: August 2014

Along with the rapid expansion of automation, communication, the Internet of things technology, and video image processing technology, the wireless video transmission technology based on the embedded system is becoming increasingly more mature. In this paper, what has been designed and managed to be perfectly applied is a transmission system of high reliability and convenience which based on the technique of pan-tilt control and integrated the technology of wireless LAN, embedded technology, video transmission technology. The paper briefly introduces the research background of the system, current research status at home and abroad, the development trend and the significance of this design project. What is more is that the article goes through the hardware and software design of the pan-tilt control circuit and software of real-time video transmission in a detailed way. The biggest is that this project has made the real-time video transmission in the local area network came true and you can check the real-time dynamic video images by browsing the web through you mobile phone.
Photoelectrochemical Sensing of Hydrazine Based on Palladium Film Modifying N-Silicon Electrode under Visible Irradiation
Authors: Li Huai Xiang , Hu Jin Chao , Wu Qiong , Song Wen Hua
Published: August 2014

In this work, a palladium film has been evaporated on an n-silicon (n-n+-Si) surface and electrochemically activated by cyclic voltammetry (CV) to form a modified silicon photo-electrode. Scanning electron microscope (SEM) and x-ray photoelectron spectroscopy (XPS) were used to characterize the morphology and composition of the modified electrode surface. A new photoelectrochemical (PEC) cell based on the modified electrode was used as sensor for hydrazine determination by photocurrent measurements. The sensor showed good photocurrent responses by adding different concentrations of hydrazine with a good stability. The linear ranges for the detection of hydrazine are 2 to 20 μM with a detection limit of 0.5 μM in pH=7.0 phosphate buffer solution (PBS).
Development of Test Control System for Eddy Current Dynamometer Based on LabVIEW
Authors: Zhang Yong Hui , Wang Xin Hua , Min Yong Jun
Published: August 2014

Control system of eddy current dynamometer is one of the keys of the test bench of engine performance .The P-Fuzzy-PI composite controller were investigated and and was applied on eddy current dynamometer’s control. Host computer program was developed based on LabVIEW. Engine load characteristic test was conducted , The Experiment Result Indicated that P-Fuzzy-PI composite controller has advantages of fast responsing, small overshooting ,high control accuracy and so on .
Novel Method of Digital Holographic Profilometry
Authors: Bao Qing Chen , Jia Shu Hai , Xu Yong , Jiang Chao
Published: August 2014

The 3D shape measurement has been one of research hotspots in the field of Mechanical measurement. But general optical 3D shape measurement techniques can only measure the continuous object through the phase unwrapping. It’s very difficult to unwrap the phase of the discontinuous object. To solve this problem, a novel digital holographic interferometry used for measuring the 3D shape is proposed in this paper. In this method, holographic interferograms are generated by object beam and reference beam at different incident angles. Height information of every point at the object surface is extracted independently without the phase unwrapping, thus it can measure the discontinuous object. The simulation and initial experiment results suggest that the method is completely feasible and low-cost, so it has great potential to apply in the industrial production.
Based on the Black-Box Method the Design of Simulated Microgravity Greenhouse Device
Authors: Guo Lin Wei , Luo Long He , Zhang Xiang , Chen Min
Published: August 2014

In order to research the effect of microgravity on plants traits and nutrients. The simulated microgravity greenhouse device was designed to simulate microgravity and research the growth of plants in a closed space. By the black-box method, functional elements of simulated microgravity greenhouse device were decomposed and redesigned by morphological matrix, And PLC was applied to be core control system for the simulated microgravity greenhouse device. The experiment showed that the simulated microgravity greenhouse device could run smoothly and meet the stability requirement. Besides, the plants experimental results showed that the Threonine and Glutamate content in Needle mushroom and Pocket mushroom under the device is higher than the natural group for 40 days.
Vehicle Display and Control Terminal Design Based on the MPC5121e and Embedded Linux
Authors: Jiang Zhe , Zhao Li Zhen , Yang Xiao Yu , Wang Yong Shan , Man Yi , Duan Qian
Published: August 2014

The design program of Vehicle Display and Control Terminal was introduced, it was based on the Embedded Linux which developed on the MPC5121e hardware platform. Through kernel cutting and transplanting of the Embedded Linux operating system, and transplanting the new generation of the Altia Designer to the MPC5121e hardware platform, the graphical user interface software of Vehicle Display and Control Terminal was developed successfully.
A Single-Phase / Three-Phase Transformer Designed for Voltage Detection Unit of 400Hz Converter Excitation Regulator
Authors: Lv Yang , Zhang Jun Hong , Zhao Jing Hong
Published: August 2014

Design a single-phase / three-phase transformer designed for voltage detection unit of 400Hz frequency ship converter excitation regulator. Transformer has asimilar structure to AC motor, but the rotor is fixed, a single-phase AC power pass into the rotor and three-phase alternating current generated in the stator side. The transformer is used to the detection circuit of voltage regulator , so that the filter capacitor can be reduced, thereby reducing the latency of signal feedback and improve the response speed of the excitation regulator. The experimental results show that, the transformer has obvious effect on improving the response speed of the circuit.
Prediction of Ice Shape for Three-Dimensional Engine Inlet Based on the Proper Orthogonal Decomposition Method
Authors: Shen Xiao Bin , Mu Zuo Dong , Lin Gui Ping , Zhou Yue
Published: August 2014

To increase the prediction speed of ice accretion on the 3D engine inlet, the Proper Orthogonal Decomposition (POD) method was introduced. Taking the ice shapes from CFD numerical calculation results as samples, in view of the change of icing temperature, the procedures of predicting the ice shapes by POD method were introduced, which used ice shapes’ coordinates and ice accretion height as compute parameters, respectively. The POD and CFD ice shapes were found coincident, which indicates that the POD method can fast and accurately calculate the 3D engine inlet ice shapes. The results from the two different POD parameters were shown and compared, and the ice shapes were nearly the same, which means they have the same effect. However, the POD method based on ice accretion height is simpler and more appropriate
Numerical Analysis of Elevator Piston Effect on Building Airflow for an Air-Conditioned High-Rise Building in Winter
Authors: Wang Yan , Guan Yan Ling , Yin Yuan Sheng
Published: August 2014

A model of a 24-storey building (94.5m high) with air-conditioning system was developed to analyze the elevator piston effect on building airflow by dynamic mesh technique of computational fluid dynamics (CFD). The results of the pressure distribution and airflow paths show that with the upward movement of elevator cabs, due to the elevator piston effect, changes in the pressure distribution and airflow paths occur in all the building; the pressure difference across the elevator door is enlarged, which is likely to cause some security issues; but the air exfiltration rate is hardly affected.
Thermal Comfort Study of Wall Hanging Air-Conditioning Office in Summer
Authors: Guo Lan Xia , Peng Xiao Yong , Liu Jian Xiang , Chai Xu Sheng , Liang Jing Jing , Fu Zhi Qiu
Published: August 2014

Airpak was applied to numerically simulate the air distribution under the same air supply temperature ,different air supply velocity (3.6m/s、2.7m/s and 1.8m/s ) and air supply angle (+15°、-45° and-75°) , and evaluate thermal comfort by Comparative analysis velocity fields, temperature fields, PMV—PPD. The results show that different air supply velocity and air supply angle have a significant impact on indoor air distribution under the same air supply temperature. Air supply angle Plays a vital role in pattern and distribution of indoor flow field,air supply velocity mainly effect the magnitude of indoor velocity and temperature. Synthetically comparied, the model’s best supply parameters are supply velocity 2.7m/s and supply angle75°,which mean value of indoor PMV is-0.09, PPD is 8.5%.
Analysis of Temperature Field and Stress Field around Vertical U-Tube Exchange Used in Ground Source Heat Pump
Authors: Xi Pei Sheng , Wang Xing
Published: August 2014

Basing on coupled thermal conduction and groundwater advection conduction, this paper analyzed the effects to the temperature field and the stress field caused by the Vertical U-tube exchange used in ground source heat pump. And then this paper analyzed the relationship between heat influence radius and thermal conductivity and groundwater advection velocity. Also, we obtained the simple formula which can estimate the heat radius of influence. Basing on coupled thermal conduction and solid mechanics analyzed the stress field caused by thermal expansion. The results show that: without groundwater advection, the heat radius of influence linear correlate to the thermal conductivity; the radius will obviously expand when the groundwater advection velocity is not too small; the stress field caused by thermal expansion near the U-tube is much larger than the farther region and it will trends to balance with the distance increasing.
Stochastic Simulation of Crack Growth in Hydrogenating and Cycling High-Strength Steels via Cloud Computing
Authors: Sokolnikov Petr , Berchun Yury V. , Shashurin Georgy V. , Tarakanov Pavel V. , Rezchikova Ludmila A. , Romanov Aleksander
Published: August 2014

Stochastic simulation using authors’ empirically-specified deterministic model estimates technical risk, i.e. failure risk. Simulating a crack growth in hydrogenating and stress cycling high-strength steels requires a great computing performance. Cloud computing based on Microsoft Azure enables authors to provide a lot of required calculations to complete design tasks in appropriate time to ensure safety operation of the structure component under consideration. Obtained results illustrate benefits of using cloud computing for stochastic simulation of crack growth in high-strength steels in comparison with the same calculations executed on a workstation. The article emphasizes the prospects of cloud computing applications to technical risk management.
Research on the Design of the Interactive Display Function and the Functional Matrix
Authors: Xu Zong Chang , Hu Kai Kai , Xin Tao , Zhang Yong Qiang
Published: August 2014

With the constant increasing of the complexity of weaponry, it difficulty of maintain degree ensure in constant increasing too. IETM, as the important informatization means of equiping maintaining and ensuring,is playing a more and more important role,and ,it directly determines whether equiping could finish the corresponding guarantee to require within shorter time.At the same time, the interactive function in IETM is the important element of human-computer interaction, the rationality, scientifically and intelligently of its design determine directly whether the whole IETM could reach the level of intelligent human-computer interaction. This text show from the designs of interactive display function and relevant function matrix, analyse and summarize the design of its relevant functions in the hope of laying a foundation for the human-computer interaction of IETM.
The Effect of Friction at the Strip Footings’ Underside on the Expansion of Plastic Zones in Subgrade
Authors: Xu Nian Chun , Xia Wen Jing , Wu Tong Qing
Published: August 2014

There exists horizontal friction besides vertically pressure at the foundations' underside. Considering the effect of friction on the expansion of plastic zones in subgrade is needed to accurately evaluate subgrade’s safety. A strip footing is chose as the research object. Assuming the distribution of friction at the strip footing’s underside is two symmetrical triangles. With the help of Flamant formula and via definite integration, the formulas of stress in subgrade induced by the friction are got. Setting the Coulomb-Mohr strength theory as the yielding criterion for the subgrade soil, through the comparison among the different friction angles in expansion characteristics of plastic zones, the research object is achieved. Two major conclusions as following: (1) the friction makes the plastic zones appear in advance, the initial critical load get smaller with the friction get bigger; (2) the plastic zones get broader in horizontal direction under the action of the friction, this makes the plastic zones in two sides beneath the footing run-through later and so enhances the subgrade’s ultimate bearing capacity.
The Seismic Performance Analysis of the Adding Storey Frame Structure with Isolation Device
Authors: Zhang Lin Hai , Ma Fu
Published: August 2014

In this paper, with a high-intensity reinforced concrete frame structure as the prototype, the calculation of isolated structures is through mature finite element software or MIDAS / Gen to calculate and analyze the five structure models of the 8 degrees Area established as the original five-layer structure model. The results show that the use of steel or reinforced concrete in floor will increase the structural seismic response with the interlaminar shear and interlaminar displacement increase. And storey isolation structure’s acceleration response is significantly less than that of the non-isolated structure.
Typical Brackets Dimensional Numerical Simulation of the Wooden Structure
Authors: Ao Wei Chao , Niu Qing Fang , Qiao Guan Feng , Li Tie Ying
Published: August 2014

Brackets is the ancient Chinese wooden building unique ways and one of the main features of the structure. Its dual function of both structural and architectural: An important component of both the structure itself, because of its flexible features tenon, the dynamic response of the structure can absorb greater energy, play a good role in the earthquake; But it is also a special architectural ornament, can play the effect of beautifying buildings. Therefore, this paper based on the finite element software ABAQUS brackets by the force of the mechanism of failure modes and numerical simulation analysis for the brackets and the whole structure of the wood to provide a scientific assessment and reinforcement.
Research on Carrying Capacity Evaluation of some Reinforced Concrete Bridge under the Special Type Load
Authors: Xia Zhao Guang , Lu Cheng Long , Yan Meng
Published: August 2014

With the development of social economy, the traffic burden is increasing, and many bridges appear damage at different degree because they have been overloaded. There are many special type loads beyond specification range in the overloaded vehicles, however the carrying capacity evaluation of the bridge under the special type load is different from the conventional methods. Take the reinforced concrete bridge built in the 90's of the 20th century for example, this paper analyses and discusses the existing carrying capacity evaluation method of the bridge when the special type load beyond the design standards drives on the bridge, as well as the whole process of analysis, loading, and the results analysis of the loading test in detail. Finally, the results of the study have a high guiding significance to the similar work.
The Seismic Performance Analysis of the Abnormal Joints Core Area of the Reinforced Concrete Frame Variable Beam Shaped
Authors: Yao Shu Dian , Ma Fu
Published: August 2014

The finite element analysis software-ANYSIS is used to calculate and analyze the deformation and mechanical performance of the abnormal joints core zone of variable beam shaped (reinforced concrete beam) under the positive and negative symmetric loads (simulate earthquake loads) . With the method of control variables, multiple finite element analysis models are set up and the focus is to explore the crack development, stress distribution and failure pattern in different stages. The compared conclusion shows that the shear failure of small joint core is the key to the whole joints core area for variable beam shaped.
Effects of Old Aggregate on Concrete Strength
Authors: Lv Hui , Wang Chun Tao
Published: August 2014

The basic characteristics of recycled coarse aggregate are completely tested. Crushed the waste concrete through artificial crushing, configured recycled concrete by reference to the mix proportion of ordinary concrete . Through experiments, recycled concrete and ordinary concrete basic properties were tested, the performance of recycled concrete with different coarse aggregate were compared, calculated the strength and amount of mold of recycled concrete; results showed that the basic properties of recycled coarse aggregate and natural aggregate existed certain differences. compared to the pebble-based recycled aggregate concrete strength can reach ordinary concrete strength, and when the new coarse aggregate and recycled coarse aggregate were the half, the strength of concrete was not high, the stress - strain curve and the ordinary concrete stress - strain curves were similar, destructive phenomenons of test cubes were close with ordinary concrete .
Evaluation of Cement Slurry Performance in HaiTa District Subject
Authors: Ma De Cheng , Zhang Xiao Hui , Wang Ji Gang , Xin Yong Le
Published: August 2014

HaiTa district’s underground condition is complex, fault develops, and stuck and collapse are easy to occur in the drilling duration.Formation dip is large, hole deviation is easy to take place in the drilling duration, many straightening cause worse wellbore quality and long wellbore like “big belly” and “sugarcoated haws on a stick”, hole diameter are irregular, wellbore quality are not easily guaranteed, bringing difficulty to ensure the quality of cementing engineering. For the difficulty of well cementation in this district, cement slurry in HaiTa district is ensured. This cement slurry performance is evaluated by experiment.
Research on China’s Photovoltaic Industry Policy Based on Domestic Demand in Post Financial Crisis Era
Authors: Shang Chuang Hong , Wang Jing Peng , Xu Zhi Hong
Published: August 2014

Photovoltaic industry has been one of strategic choices to cope with economic downturn, technologic commanding height and clean development. Currently photovoltaic industry depends much on industrial policy. Dominant idea, key driver, Feed-in tariff are implications from leading photovoltaic countries. According to problems in China’s industrial policy, policy suggestion are put forward based on domestic demand in terms of national strategy, industry planning, policy system, technologic innovation and industrial standards.
Application and Analysis of Multi-Source Hybrid Distributed Energy System
Authors: Ban Yin Yin , Ren Hong Bo , Wu Qiong , Yang Jian
Published: August 2014

Under the background of the global energy crisis and environmental issues, the efficient utilization of renewable energy as a kind of distributed energy resources, is paid more and more attention. However, the intermittency and unpredictability of the renewable energies limit its development and penetration. To deal with such a big challenge, the multi-source hybrid distributed energy system has been proposed. In this paper, the concept and characteristics of the multi-source hybrid distributed energy system are discussed. In addition, three main forms of the proposed innovation energy system are presents and compared.
Feature Extraction by Decryption to Target
Authors: Wu Qing E , Wang Hong , Ding Li Fen
Published: August 2014

To carry out an effective classification and recognition for target, this paper studied the target owned characteristics, discussed a decryption algorithm, gave a feature extraction method based on the decryption process, and extracted the feature of palmprint in region of interest. Moreover, this paper used the wavelet transform to extract the energy feature of target, gave an approach on matching and recognition to improve the correctness and efficiency of existing recognition approaches, and compared it with existing approaches of palmprint recognition by experiments. The experiment results show that the correct recognition rate of the approach in this paper is improved averagely by 2.34% than that of the existing recognition approaches.
Multidimensional Resource Scheduling in Cloud Data Centers
Authors: Song Hai Na , Zhang Xiao Qing , He Zhong Tang
Published: August 2014

Cloud computing environment is regarded as a kind of multi-tenant computing mode. With virtulization as a support technology, cloud computing realizes the integration of multiple workloads in one server through the package and seperation of virtual machines. Aiming at the contradiction between the heterogeneous applications and uniform shared resource pool, using the idea of bin packing, the multidimensional resource scheduling problem is analyzed in this paper. We carry out some example analysis in one-dimensional resource scheduling, two-dimensional resource schduling and three-dimensional resource scheduling. The results shows that the resource utilization of cloud data centers will be improved greatly when the resource sheduling is conducted after reorganizing rationally the heterogeneous demands.
Study on Transient Stability of Circulation Economy Power System with High Penetration of Wind Power
Authors: Liu Jian Ping , Liu Chun , Lu Ting Rui , Tang Hai Yan , Tian Xin Shou , Wang Zhen
Published: August 2014

On the basic of deeply analyzing the characteristic of circulation economy power system with high penetration of wind power, and researching the model and transient characteristics of DFIG, the problem on transient stability of circulation economy power grid was given through simulating and analyzing the huolinhe circulation economy demonstration project on wind power consumed in the local in the paper. At last, an optimal control strategy of wind turbine based on circulation economy power system with high penetration of wind power was proposed.
Contribution of Sulfate-Reducing Bacteria to the Electricity Generation in Microbial Fuel Cells
Authors: Gao Chong Yang , Wang Ai Jie , Zhao Yang Guo
Published: August 2014

Double-chambered microbial fuel cells (MFCs) were used to investigate the effect of sulfate and sulfate-reducing bacteria (SRB) on electricity generation by molybdate inhibition coupled with PCR-DGGE technique. Results showed that low influent sulfate (< 1470 mg/L) improved power density and voltage, while higher sulfate blocked the MFC efficiency. Molybdate inhibited the activity of SRB and consequently decreased MFC voltage and power density which confirmed some SRB were involved in the electricity generation. Microbial community analysis indicated thatDesulfovibrio desulfuricanscontributed to the electricity production and stability of MFC.
Dehydrogenation of Propane to Propene over Mesoporous ZrO2-Supported VCrO Catalysts
Authors: Agula Bao , Dalai Si Qin , Wu Yue Chao
Published: August 2014

Mesoporous ZrO2with narrow mesopore size distributions has been prepared by the surfactant-assisted method of nanoparticle assembly. A series of VCrO/ZrO2catalysts with different V/Cr molar ratio (0.3, 0.6, 1.0, 1.3 and 1.6) were prepared by the wetness impregnation method and characterized by XRD, N2adsorption and TEM techniques. N2adsorption and TEM analysis revealed that the surfactant-assisted method prepared VCrO/ZrO2catalysts have wormhole-like mesoporous structure with uniform pore size distribution. VCrO/ZrO2catalysts have been applied for direct dehydrogenation of propane to propene. The optimistic catalyst was V/Cr-0.6 with highest yield of 41.7% the corresponding conversion of propane was 44.1% and selectivity to propene was 94.5% at 550 °C.
A New Technique to Improve the Efficiency of Output Power Solar Panel Using PIC 18F4550 Microcontroller
Authors: Yusoff Mohd Irwan , Leow W.Z. , Irwanto M. , Gomesh N. , Mamat M.R. , Safwati I.
Published: August 2014

Together with advancement associated with technologies things have gotten simpler and less complicated for people. Automation is usually the employment of manage devices along with details technologies to scale back the need regarding human being do the job inside creation associated with things along with products and services. Solar photovoltaic (PV) technology is regarded as the famous energy source amongst renewable energy sources which in turn that utilize to relieve usage of fossil fuel. PV energy is usually a lot of abundant energy sources among renewable energy. PV technology is change sunlight energy into electrical energy. The performance of electricity of PV module can be affected by solar irradiance and ambient temperature. When PV technology is process solar irradiance, producing lowered performance of PV modules and increasing temperature of PV module. When the temperature of PV module is reach at or more than 35 °C that detected by LM 35, PIC 18F4550 is switched ON the DC cooling system and vice versa. After switch ON the cooling system, the temperature of PV module is reducing. This controller system is an intelligent system because it will run the cooling system automatically when the temperature of PV module reaches setting level that detected by temperature sensors. The higher efficiency of PV cell, the payback period of the system can be shorted and the lifespan of PV module can also be longer.
Research and Application Advances in Supersonic Swirling Separator
Authors: Zhang Yu Peng , Wang Shu Zhong , Lv Ming Ming , Jing Ze Feng , Luo Xiang Rong
Published: August 2014

Supersonic swirling separator has been developed for natural gas dehydration in recent years. Referred to quantities of literature, the working principle and advantages of supersonic swriling separator are discussed. The paper also reviews the research progress of supersonic swirling separator both in developed countries and China in detail. Firstly, the separation technology process from Twister-I to improved Twister-II, and 3s technology in Russia, which comes from aviation technology are reviewed. Secondly, the design of nozzle and cyclone device which are important components for a separator, the simulation of characteristics of gas-fluid two phase flow, and the acquisition of various types of separators and indoor experiments since the project set up in 2003 in China have been introduced. Although there is a considerably long way to go before the industrial application, great achievements such as patents have been made and abundant experimental data and valuable conclusions have been accumulated for further research. Through comparisons and analyses of all these separators, the paper points out both their advantages and disadvantages and the focus of research in the future.
Property of Mn-Doped Fe2O3 and its Effect on CO Adsorption
Authors: Xi Xue Zhang , Li Qu , Long Dong Teng , Zhang Han Fei , Cheng Wei Liang , Qin Wu
Published: August 2014

The electronic properties of Mn-doped Fe2O3 and the adsorption of CO on Mn-doped Fe2O3 were investigated using density functional theory (DFT) calculations. Mn doping Fe2O3 is endothermic process, and high-folded doping is easier than lower-folded doping. Mn-doping changes the conduction and valence band of Fe2O3 (104) more obviously than Co-doping. Energy separation between CO molecule and oxygen carrier suggests that electron transfering between CO and high-folded doping surface is easier than between CO and any other low-folded doping surfaces. Then, CO adsorptions on different sites of Mn-doped Fe2O3 were further investigated, which shows that Mn decreases the interaction between CO and the surface except for Mn7f-doped Fe2O3 (104). Results promote the fundamental understanding of such metal-doped oxide surface for further application.
Consequence Analysis of Jet Fire Accidents Occurred in Salt Cavern Natural Gas Storage: Hazard Distance and its Influence Factors
Authors: Feng Qi Lin , Cai Hao , Chen Zhi Long , Guo Dong Jun , Ma Yin
Published: August 2014

Natural gas storages in salt caverns are receiving an increasingly important role in energy storage system of many countries. This study focuses on analyzing the consequence of jet fire associated with natural gas storages in salt caverns. A widely used software, ALOHA, was adopted as simulation tool. The reliability of ALOHA was validated by comparing the simulated results with the field data observed in real accidents and the values calculated by a simple model presented in a previous study. The China's first natural gas storage in salt cavern, Jintan natural gas storage, was selected for case study. The case study reveals that the hazard distance of jet fire decreased with the increase of pipeline length, as well as the decrease of pipeline diameter and operating pressure.