bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Organic Loading Rate on the Process Imbalance of Anaerobic Digestion with Food Waste
Authors: Mei Bing , Peng Xu Ya
Published: February 2015

The use of volatile fatty acids (VFAs) as process indicators in biogas reactors treating Food Waste (FW) was studied. The aim of this work was to determine a reliable parameter which could be used as an indicator of process imbalance during anaerobic digestion of FW in the continuously stirred tank reactors (CSTR) anaerobic reactor. It can be concluded from this that not only VFAs concentrations are indicator for process imbalance during anaerobic digestion of FW, but also VFAs changes constitute the most important indicators of early warning of process imbalances.
Study of Guizhou Province Guanling Daz-Hai Landslide Instability Process under the Rainstorm
Authors: Liu Qi Chen , Xiong Cheng Ren , Ma Jun Wei
Published: February 2015

Guizhou province GuanLing Dazhai high speed and long distance landslide in the June 28 of is one of the typical landslides that related to rainstorm in 2010. The strength of Dazhai landslide which is given priority to with mudstone decreased rapidly under the softening action of the heavy rain. Hydrostatic pressure of landslide rear fissure and buoyancy of sliding surface for the stability of the landslide decline has played a significant impact. Combined with strength reduction method and using 3DEC for simulating Dazhai landslide. Landslide safety coefficient before and after rainstorm are obtained and analyses the instability of the landslide.
Study on Optimization of Anti-Seepage and Drainage System for High Concrete Sand-Gravel Dam
Authors: Yan Zhong Qi , Shen Zhen Zhong , Xu Li Qun
Published: February 2015

The design height of a concrete sand-gravel dam is up to 251 meters, which has strong unloading rock masses with great depth on the left bank. According to the topographic and hydro geologic conditions of the dam site, a three-dimensional finite element model for seepage calculation of the dam is established. Based on the equivalent continuum method, the effect of anti-seepage and drainage system within run-time with normal storage level is studied, meanwhile, the seepage elements are obtained, including the seepage of the groundwater, the discharge of the dam, the seepage gradient of the dam body and the impervious curtain and so on, thus the conclusion that the anti-seepage and drainage system is reasonable is verified. What’s more, the influence of the different length and depth of the anti-seepage curtain to the distribution of groundwater seepage as well as the effect of "L" type drainage in the dam body are analyzed in order that the suggestion of the optimization of anti-seepage and drainage system is put forward for the high concrete sand-gravel dam.
The Numerical Simulation and Deformation Analysis to the Deep Foundation Pit of Diaphragm Wall Based on Midas/GTS
Authors: Liang Jin Jun , Wang Fei , Liu Ya Wen , Sun Xing Yuan
Published: February 2015

Taking the J2 area YK10+615~YK10+650 miles section related to the connection line of River-crossing tunnel to Nanjing plum delta--the youth Olympic axis underground traffic system engineering as the background, the 3d model is established by using finite element software MIDAS/GTS, the mileage period of excavation process is simulated, discuss the influence of excavation on adjacent soils. Calculation results show that the excavation will inevitably cause deformation of adjacent soil, and comparing the results of calculate and the actual monitoring data show that the method has certain guiding significance to actual engineering.
Research on the Radial Gate Fluid-Structure Coupling of Hydraulic Steel Gate
Authors: Cai Yi Fei , Han Yun Feng
Published: February 2015

With the rapid development of China's water conservancy decades, the application of hydraulic steel gate demand is increasing. Among the many types of hydraulic steel gate, the radial gate because of its closed orifice area, pier height is small, over-water conditions are good, open and close rapidly, less embedded parts, etc., are a very wide range of applications. But the survey found that there are many curved steel gate accident in the history of its application. Most accidents are caused due to the instability of the arm, the ultimate reason is the traditional design methods flawed. According to the traditional method of checking the experience plus the theoretical design out of the gate structure, the safety factor is too large, but the overall stress distribution is very uneven, resulting in the investment project is too large, it is difficult to ensure the safe operation of the whole structure. Therefore, it is necessary for radial gate design method to improve it. In this paper, based on the continuum topology optimization theory, combined with structural finite element analysis software, representing a new systematic method of designing curved steel gate.
The Time to Eliminate the Expansion Joints of Diversion Pipeline in Wanjiazhai Hydropower Station
Authors: Wang Chun Tao
Published: February 2015

At present, many hydropower stations eliminate the expansion joints to solve the pipe leakage problem. It’s very important to control the welding environment temperatures in eliminating the final weld joint of the expansion joints. To address this problem, by adopting three-dimensional finite element model in studying the hydro project of Wanjiazhai, this paper analyzes the stress state of steel pipe in all welding environment temperatures in details and suggests the proper range of welding environment temperatures. Researchers suggest that May is suitable to perform welding.
Coal Water Slurry Gasifier Burner Service Life Analysis
Authors: Li Yu Ying , Hou Shu Bo
Published: February 2015

This paper introduces the current situation and existing problems of coal water slurry gasification technology (CWS). Sinopec Qilu combines with the structural characteristics of gasifier burner, analyzes the phenomenon of the short service life of gasifier burner from various perspectives, and expounds reasons. The requirements of CWS gasification for the fuel burner are given, and the new idea used in jet-nozzle design is also given in this paper.
Based on the Research of Wind Turbine Vibration Performance and Aerodynamic Performance
Authors: Wu Chun Mei , Xiong Chun Yu , Zhao Yong
Published: February 2015

Wind turbines is one of the most important components of the wind turbine, design for wind turbines with good wind turbines is the basis of high wind energy utilization coefficient and large economic benefits. Using the theory of Wilson pneumatic designed 100 W horizontal axis wind turbine, in the process of design and design parameters on the vibration performance correction. Finally on rotor vibration modal experiment and pneumatic external characteristic experiment, the experimental results show that the design of the wind turbine at low wind speed can meet the design of the wind energy utilization coefficient, and the wind machine to avoid the resonance region speed at run time, extend the life of the rotor, so as to reduce the design cost.
Comparative Research and Design of Precision Hill-Seeder with Whole Plastic-Film Mulching on Double Ridges
Authors: Wang Song Lin , Gao Ai Min , Wang Bo , Han Zheng Sheng
Published: February 2015

The present situation of precision hill-seeder with whole plastic-film mulching on double ridges on the northwest arid areas was introduced and the structure, performance and characteristics of two different types of precision hill-seeder were analyzed and discussed. On the basis of comparative analyses and research, problems of current hill-seeder were put forward. Combined with the agricultural technology of double ridges, pneumatic and vertical insert precision hill-seeder was designed. Thus, the future research direction of precision hill-seeder was pointed out and the design basis and reference was provided for research of the related precision hill-seeder.
Research of Retarded Acid Formula System of Putaohua Reservoir
Authors: Gao Chao , Cao Guang Sheng , Sun Cheng Yan
Published: February 2015

In order to overcome the disadvantages of rapid acid-rock reaction rate, short penetration distance, and poor acidification results exist in the process of traditional acidification in Putaohua reservoir, this paper has developed research on retarded acidification technique and optimized its formula and injection parameters. With the operations of complex formulation, screening and optimization among main agent, scale-fromingion inhibitor clay stabilizer corrosion inhibitor retardant, a kind of retarded unplugging formula with good combination property suits for environment of high temperature has been developed. According to research, this developed formula system has permeability improving rate of 60% on natural core, suggest good characteristics of corrosion inhibition, retardation and permeability increasing.
Influence of De-Swirl Angle on the Flow and Heat Transfer in Rotor-Stator Cavity System
Authors: Li Jing , Zhao Guo Chang , Song Li Ping , Cao Lei
Published: February 2015

Numerical simulations are used to investigate the influence of different de-swirl angles on the flow and heat transfer in rotor-stator cavity system The results show that: de-swirl angle has great influence on the swirl number; radial velocity increases with the increase of de-swirl angle; the smaller de-swirl angle is, the more smooth radial velocity distributes; it is favorable for disc flow and heat transfer when θ=45°.
The Finite Element Analysis and Optimization of the Hood Based on Hyperworks
Authors: Xiang Yu , Li Jia Tong , Tian Zhao Zhao
Published: February 2015

Hood is an important part of the automobile, which directly affects the vehicle performance. This paper takes the hood as an example, first of all the three-dimensional model in CATIA was imported into Hypermesh, then it was simplified and meshed, the constrained mode and the stiffness of several conditions were calculated by Optistruct. By using the Size Optimization based on sensitivity analysis, the minimum hood mass is defined as the objective function; each component’s thickness was optimized under the prerequisite of ensuing stiffness and the first modal of hood. The results show that: the optimized hood meets stiffness requirements, the whole vehicle performance can be improved, therefore, the lightweight design in this paper is effective.
Research of the Impurities Causes in Water Injection Well in Longhop Oilfield
Authors: Wang Pei Long , Cao Guang Sheng , Miao Guo Jing , Cui Hong Fei
Published: February 2015

Due to the particularity of its percolation of low permeability reservoirs, water injection is very difficult and damage to the reservoir, especially the impurities in injection Wells, at the same time affect the injection efficiency, it will ultimately affect the recovery of the reservoir and the oilfield production. So it is necessary to carry out the ingredients and the causes of impurities in injection wells, clearing the Source for different kinds of impurity to provide the basis for reduce the impurity content in injection wells. In this paper, the author analyzed impurities particle size, composition and content in oilfield injection water In Longhop Oilfield through the indoor experiment, and with the comparison between the ion content and composition of the filtered water samples, analyzing the cause of the impurity within the wellbore. Experimental results show that in oil field water injection well, impurities particle size are mainly distributed between 2.6 and 5.4 um, impurity content mainly changes between 0.003746% and 0.017189%, the main ingredients of impurities is Fe2O3 and acid insoluble substances (SiO2). Fe2O3 mainly comes from the injection water; acid insoluble substances mainly come from the formation sand production.
Numerical Investigation of Pneumatic Regulating on Low-Pressure Guide Vane
Authors: Qin Ya Jie
Published: February 2015

In order to reduce the turbine flow, injecting an airstream into the mainstream of the low-pressure turbine from the casing. A CFD analysis has been carried out to study the impact of jet parameters (jet position, Angle, flow rate and velocity) to the turbine flow. The calculation results show that when the low-speed region caused by the jet flow locates at the throat the flow regulating effect is the most obvious. In additional, when the jet is against the main stream or with a big flow rate, the turbine flow regulation is better, but the loss efficiency of the turbine will be significantly increased. The jet Mach number has little influence on the effect of flow regulation.
Structure Design of and Numerical Simulation on an Annular Reverse Circulation Drill Bit
Authors: Wang Jin Song , Cao Pin Lu , Yin Kun
Published: February 2015

The reverse circulation drilling technology of hollow through DTH air hammer is a set of efficient coring with DTH air hammer, full-hole reverse circulation with drilling fluids, and continuous coring without power lack. It been successfully applied in mineral resources exploration, water well drilling, infrastructure construction and other fields. We designed a new type of annular reverse circulation drilling bit in order to prevent drilling accident when drilling in complex strata, such as breakage and leakage. In this paper, the computational fluid dynamics (CFD) code, FLUENT, is employed to simulate the flow phenomena of reverse circulation drill bit. Numerical simulation results show that the values of negative pressure of new type annular reverse circulation drill bit which formed in the center channel and the bottom of hole were larger than those of the normal bit. Under the same conditions, the suction quantity from annulus of annular drilling bit is 1.4 times to the normal one.
An Experimental Flow Study of the Pitching Oscillating Airfoil Using the PIV Technique
Authors: Xiong Xuan , Ye Xiao Ming , Wang Kai
Published: February 2015

A wind tunnel experiment is carried out employing 2D-PIV technique to visualize the qualitative flow field and to obtain the quantitative velocity profile respectively in the wake of 1 Hz pitching oscillating airfoil of 6 degrees amplitude. In order to validate the experiment for future’s study, the experimental velocity data are compared to relative CFD ones. The CFD results are obtained from a code called Map Flow that is able to deal with the flow around pitching and plunging oscillating airfoil. From the vortices maps it is shown that the experimental results and CFD ones are well compared with respect to the size and the shape of the vortices patterns. Quantitatively, the differences between experiment and CFD with respect to the velocity profile are acceptable.
Improvement of Engine Coolant Ultrasonic Cavitation Apparatus
Authors: Chen Jin Mao , Sun Xiao Ying , Leng Guan Jun , Yi Ru Juan , Gao Bo
Published: February 2015

The structure of cast iron specimen and the temperature control unit of the engine coolant ultrasonic cavitation apparatus were improved in this paper. The broken problem of cast iron specimen was solved by split-structure design, which also solved the loose binding problem between specimen and sonotrode. The temperature control unit included a beaker with water circulating jacket, water bath, circulating pump and connection hose. The temperature control unit overcame the difficulty of the temperature control of test coolant solution. More important, the temperature control inside the soundproof box was realized, which avoided the effect of ultrasonic vibration noise on the health of operator. The unit has the characteristics of simple, practical and easy to use.
The Research of Hydrodynamic Performance for Ducted Propeller with PBCF
Authors: Yao Zhen Qiu , Gu Xin , Shen Yun
Published: February 2015

The Propeller Boss Cap Fins (PBCF) is often used to ordinary propeller, a good energy-saving effect being obtained. In order to study the energy-saving mechanism of ducted propeller with PBCF, in this paper, the FLUENT has been taken to simulate the distribution of thrust coefficient, torque coefficient, blade pressure and velocity vector of hub surface at different advance coefficients. By contrasting the results of numerical simulation of hydrodynamic performance of ducted propeller between with fins and without fins, we know that at the low advance coefficient, the ducted propeller with fins will increase the thrust coefficient and decrease the torque coefficient; rising the open water propeller efficiency, improving the efficiency under the premise of the efficiency increase by duct. The existence of fins has changed velocity distribution of water around the hub and made the water that flowed around the propeller hub with propeller rotation direction flow to propeller tail along the fins not gather in the cub, so it weakened the hub vortex.
Automobile Modeling Research Based on Numerical Simulation
Authors: Chen Jie , Huang Miao Hua
Published: February 2015

In order to adapt to new modern car styling, the aerodynamic numerical simulations based on computational fluid dynamics (CFD) are applied to the process of car styling. We received the early modeling design automobile aerodynamic coefficients, pressure distribution, velocity contours and other body outflow field data after the CFD post, combined with these data some advice to improve the aerodynamic drag of the designed car are given. Proposed aerodynamic automobile design method is based on numerical simulations, according to experience in air vehicle dynamics studies.
Finite Element Analysis of Frame of Dump Truck
Authors: Zhu Yong Zhen , Yang Kuo , Yang Qi , Zhao Yun De
Published: February 2015

The CAD software was used to establish 3D model of frame of dump truck, and the finite element model was established through Hyper Mesh. The stress distributions of the frame in vertical accelerating, turning, twisting and climbing conditions were computed through finite element software when the dump truck was loaded 80t. The result is consistent with the actual situation of the frame, which proved that the approach of finite element analysis is feasible. And we proposed the improved method of the frame according to finite element results.
Numerical Simulation and Optimization of Small Low-Speed Wind Tunnel Contraction Flow
Authors: Liu Jin Sheng
Published: February 2015

The principle of the design of the wind-tunnel contraction is introduced; several typical contraction curves provided by former researchers are collected and compared. Using commercial Computational Fluid Dynamics (CFD) software-Fluent: Fluent. The flied quality of different contraction curves using a 3-D axial symmetric k-ε model is compared and some suggestions on the selection of the curves to different requirement are made. Witozinsky curve and Batchelor-Shaw curve prone to counter pressure at the entrance area, serious energy loss, the speed of export poor uniformity. The uniformity of the flow field is a little better of the improved 3-power curve (Xm = 0.5).5-power curve (Xm=0.5, n=7) shows low turbulence degrees, a certain advantage in energy consumption and strong stability.
Research on Engine Fleet Management for Civil Aero-Engine
Authors: Zhao Ming , Xu Ji Wei , Huang Xuan Hong
Published: February 2015

The aero-engine is the core part of the aircraft, which plays a very critical role in aviation safety and economy. The engine fleet management is a workable management tool, can be used in airline route operation, with the goal of improving the engine time between shop visits and optimizing maintenance costs, while maintaining the reliability of the engine in service.
The Study of the Relationship between the Thickness Combination of the Well and Liquid Production per Unit Thickness
Authors: Liu Yi Kun , Liu Yang , Wang Feng Jiao , Wang Xiao Yue , Wang Jin Ming
Published: February 2015

Liquid production per unit thickness is the important indicator which reflect production capacity, and it is magnitude is the radio of well’s daily fluid production rate and sandstone thickness. It is an important job for petroleum reservoir engineering to study the effect of different sandstone thickness type combination to liquid production per unit thickness. Each sandstone thickness type has different size of reservoir thickness, porosity, permeability, etc.so the different sandstone thickness type will produce different degrees of influence to the size of liquid production per unit thickness. The relationship between each sandstone thickness radio and liquid production per unit thickness is obtained by studying all kinds of sandstone thickness radio under different liquid production per unit thickness.
Study on Power Flow in Distribution Network with Photovoltaic Power
Authors: Han Fei , Ma Jian Wei , Li Dao Kuan
Published: February 2015

There is certain influence on power flow when photovoltaic power is connected to distribution network, it analyzes the model of photovoltaic power for power flow calculation, and set up the simulation model of distribution network with photovoltaic power. And use power system simulation software (PSSSINCAL) to set up the simulation model, focus on voltage profile and loss when photovoltaic power is connected to distribution network in different positions and different capacity. Finally, confirm the accessing capacity of feeder, and put forward the optimal scheme for photovoltaic power with distribution network.
The Design of Adaptive Ambient Noise Sound and Light Controlled LED Lamp Based on Integral Mode V-PWM Converter
Authors: Su Hui , Jin Yong Gao
Published: February 2015

In this paper adaptive ambient noise sound and light controlled LED lamp based on integral mode V-PWM converter is proposed. This converter can complete the integral way of weak voltage amplification and pulse width modulation at the same time, it has the characteristics of good performance of anti-interference, high magnification, high conversion accuracy, simple circuit etc. Adaptive ambient noise sound and light controlled LED lamp is designed using this converter. This LED lamp can work in various occasions with high noise, such as toilet assembling with fan, corridor etc. It has stable work, simple circuit and low cost.
Control System Design of Climbing Robot Based on PLC and SCM
Authors: Zhang Dan Dan
Published: February 2015

High voltage tower climbing robot is mainly used to climb all kinds of tower structure, control system mainly has two aspects, one is the chip microcomputer detecting control system using PIC16F877A as the controller; the other is the total control system used to coordinate various parts of sub function module using the PLC controller as the core. This module control method can improve the efficiency of the whole control system. In addition, the PID algorithm of SIEMENS S7-200PLC is used in catching control, which makes control system more stable and efficient.
Experimental Study on Improving the Rate of Antimony Ore Grade and Recovery of Mineral Processing
Authors: Cao Qin Bo , Cheng Jin Hua , Wen Shu Ming
Published: February 2015

In order to improve the grade and recovery of antimony, antimony ore in the process of flotation, this exploratory experiment by reagent addition, process selection to realize. The main parameters of the first set of experiments; grinding fineness of 70% lead nitrate, 200g, Black Powder 100g, directly add collector, did not add kerosene decarburization, choose a coarse, two sweep, two fine flotation process; and the second group of experiments the main parameters; grinding fineness of 70% 200g, lead nitrate, xanthene’s, the choice of a coarse, two sweep, two fine flotation process. The combination of two different groups of flotation experiment comparison, makes the antimony ore grade and recovery can be increased.
Hardware Design of Electronic Parking Brake System
Authors: Wu Jun Jie , Gui Qian Fu , Zhong Shao Hua
Published: February 2015

Based on the Free scale S12 processor as the main MCU, the article have designed the hardware circuit of the electronic parking brake system control unit, and on the basis I have made the rational analysis of the control of the total the electronic parking brake system. The analysis and experiment results show that the design can realize the basic function of EPB, to a great extent, it also improve the reliability of the system, fault self-checking ability and delayed its working life and just right to satisfy the most basic and most critical requirements of the system: As part of the braking system, it should have the reliability and security.
Study of Supercapacitors Based on Nanomaterial’s of Novel Architectures
Authors: He Ya Rong
Published: February 2015

Sustainable exploration and use of energy source depend on discovery of new energy source and development of novel energy devices. As a kind of energy storage device, supercapacitors have many advantages over conventional batteries: high power density, long cycling stability, fast charge-discharge rate and being environment friendly. However, common problems involved with nanomaterials such as bad structural continuity, conglomeration and structural instability have restricted their application in supercapacitors. We have conducted the design, synthesis and performance research of the electrode materials containing. We demonstrate the above composite materials have wide prospect for application in the supercapacitors as well as other similar fields.
A Novel Energy-Harvesting Active Radial Bogie for Railway Vehicles: Design, Simulation and HIL Test
Authors: Wang Shu Shu , Shen Xiao Meng , Tu Xiao Jian
Published: February 2015

With the increasing development of railway transportation, the wheel-rail wearing problem is becoming more and more serious while the increasing of both the operating speed and loading weight of railway vehicles. Active radial bogie is one of the hotspots for research in the area of decreasing the wheel-rail wearing issues. Meanwhile, the energy dissipation problem has been restricting its development. This paper puts forward a novel energy-harvesting active radial bogie for rail vehicles. Making use of the hydraulic electromagnetic energy-regenerative shock absorber, the vertical vibration energy could be harvested while train is traveling. Detailed study and evaluation for this active radial bogie will be presented. The tests and simulation results prove the effectiveness of the proposed bogie mechanism and control.
The Control of Palegeomorphology on Sedimentary Systems in Southeast Qianjiang Depression, Lower Xingouzui Formation, Jianghan Basin
Authors: He Feng , Lin Chang Song , Zhang Xiao Qing
Published: February 2015

The pale geomorphology of Lower Xingouzui Formation is controlled by synsedimentary faults. The pale geomorphology controls the distribution of depositional systems, the development of underwater distributary channel controlled by groove and structural slope break belt, combination features of underwater distributary channel and mouth bar controlled by sedimentary slope break, beach bar developed in paleo-uplift, shore-shallow lacustrine and semi-deep lake developed in sag zone.
Research on Maintenance Platform of Video Optical Detection
Authors: Zhao Ming
Published: February 2015

In avionics equipment maintenance, electronic equipment failure or mal function caused by PCB that happens frequently. Due to the complexity of large circuit network cross linking, it is hard to solve such a troubleshooting by point to point. Advanced avionics, such as GNS430, VHF155A, G1000 integrated avionics system are using SMT technology. Because of PCB’s greatly fine line and the ultra-fine pitch components, it is highly difficult for electronic equipment test. Video optical detection technology for PCB detection technology is developed rapidly in recent years. It gradually began to replace the original visual detection and electrometric method, and it has a high fault resolution.
Research on Communication Lines Detection in WAMS
Authors: Gao Bing Kun , Yue Wu Feng , Liu Peng
Published: February 2015

With the application of synchronized phase measurement devices and the rapid development of communications networks, WAMS is gradually becoming the focus of domestic and international science and technology researchers. Based on the OPNET simulation software, this article looks into the communication line of WAMS and conducts a study on WAMS link bandwidth and designs a new method of detecting traffic characteristic. Finally, it proves the conclusion that communication line traffic characteristic can be improved as bandwidth increases. The results will have a higher value for the design of wide area measurement system.
Design of Mine Communication Module Based on Power Line Carrier and CAN Bus
Authors: Rong Hai Liang , Zhang Yong Sheng
Published: February 2015

Aiming coal mine production conditions, and analyzing the characteristics of underground transmission information, combined with power line carrier technology and industrial field bus technology, designed dual transfer communication module based on power line carrier technology and CAN bus, and on this basis to achieve a bus monitoring network. This paper describes the design of communication module and the composition of the monitoring network, which provide a stable and reliable method for information transmission of underground coal mines.
An Optimal Resource Allocation Algorithm in Cloud Computing Environment
Authors: Dai Lu , Li Jian Hua
Published: February 2015

Resource allocation is a key technology of cloud computing. At present, the most of studies on resource allocation mainly focus on improving the overall performance by balancing the load of data center. This paper will design the experimental platform of resource allocation algorithm, energy optimization and performance analysis, obtain original achievements in scientific research ,for the resource allocation method based on immune algorithm and energy optimization in cloud computing to provide innovative ideas and scientific basis. This research has important significance for further study on resource allocation and energy optimization in cloud computing environment.
Research on the RFID Antenna Screen Printing Technology
Authors: Li Xiao Min , Zhao Xiu Ping
Published: February 2015

This paper studied in the process of RFID screen printing, the influence of mesh number, curing temperature and curing time on the RFID tag resistance. During the experiment, there are three specifications, 120 meshes, 250 meshes, 350 meshes , the curing temperature is set as 110 °C, 120 °C, 140 °C, 150 °C, 160 °C and the curing time is 5min, 10min, 15min, 20min, 25min. The experimental results indicate that RFID tags produced by the screen of 120 meshes have rough surface and fail to meet the requirements; when the curing temperature and curing time respectively reaches 150 °C and 20min, the resistance value of the antenna is low and stable.
Research on the Effect of the Relative Speed of the Performance in Bidirectional Traffic Stream
Authors: Yuan Li Ping , Liu Zhi Hao
Published: February 2015

As an important topic in research, Inner-vehicle communication (IVC) network gets more and more attention. But a lot of research ignored the effect of the relative speed between the vehicles of the communication performance in bidirectional traffic streams when they set multichannel traffic flow scenes. In order to solve the problem we studied the changes of each performance on different relative speed of the traffic streams. The research can help to configuration related parameters and set scenes in right way, so that to improve the reliability and efficiency and security of IVC network.
Architecture and the Key Technologies of Medical Equipment Management System Based on the Internet of Things
Authors: Mi Yong Wei , Wu Rui Chang , Li Yi Yong , Zhang Kai , Wang Wei , Li Tao
Published: February 2015

With the development of the Internet of Things (IOT), its application in the field of health care has become more and more widely. Based on the introduction of the IOT system architecture, key technology and existing problems and the three layer general framework, combined with the actual characteristics of the hospital, an IOT-based medical equipment management system architecture, and application of Internet technology, sensing technology, communication technology and software information technology, analyzes the related key technologies of building in, including intelligent gateway, middleware, information management platform etc. in order to achieve intensive, digital and informatized medical equipment management mode.
A Study on the Application of Deconstructing Byzantine Fault Tolerance
Authors: Wang Yan
Published: February 2015

The evaluation of kernels is a confusing obstacle. In fact, few leading analysts would disagree with the deployment of the look aside buffer, which embodies the unfortunate principles of machine learning. We investigate how local-area networks can be applied to the analysis of the Internet.
OMA DRM-Based Key Management Protocol for IPTV
Authors: Li Hao , Yang Cheng , Tian Jia Yin
Published: February 2015

Nowadays, with the development of hardware platform, digital content can be presented in more varieties of forms. The authorized users not only watch the authorized TV programs, but also are willing to do it via mobile phones and I-pad. Although the contemporary OMA DRM system provides an approach named domains to adapt multi-screens and services about the authorization of offline digital content, standard PKI procedures used to authenticate the DRM Agent, with the calculation and power consumption relatively larger, are not beneficial for the mobile terminal. Meanwhile, as the public key distribution is complex and the authorization is difficult, it is also not helpful for applied environment of multi-screens. Based on the authentication of hardware devices, the uniqueness of hardware ID also cannot meet the actual demand of multi-screen user. In this paper, we will propose a new protocol of key distribution based on OMA DRM. The protocol meets the requirements of low power consumption and multiple-screen, while providing the feasible security.
Design and Implementation of Fire Multi-Level Menu for Office Automation Platform Based on Communication Technology
Authors: Ni Bin
Published: February 2015

With the social development and progress, fire institutions, including colleges and universities, including office automation platform, which the functions needed to support the business more and more, need to use multilevel menu for management platform. In addition, with the rapid development of mobile Internet technology, people access to office automation platform approach is also increasingly diverse, due to the hardware and software configuration of various access devices larger difference, which requires multi-level menu office automation platform consumes fewer resources simple operation, good scalability. Now, we use the idea of finite state machines to achieve a small footprint, scalability, simple switching office automation platform colleges Fire multi-level menu management system.
Structural Parametric Modeling and Analysis of a Ship Stiffened Deck Plate Based on the Patran Command Language
Authors: Li Zhen Yang , Ren Hui Long , Qi Ya Wei
Published: February 2015

As a numerical calculation method in math, Finite Element Analysis (FEA) has been imported into the structural analysis field for more than 30 years. MSC. Patran was launched by the MSC Corporation into the field as a pre-processing and post-processing module of FEA, its strong potential of secondary development has played an important role in the structural parametric modeling analysis. Patran Command Language (PCL) is the built-in language of MSC. Patran. In this paper, in order to introduce PCL’s theory and using method, the author created a GUI by PCL which contains a lot of response functions in a ship stiffened deck plate project.
Optimization Analysis of Supply Logistics in Automobile Manufacturing Based on Internet of Things
Authors: Yang Jian Jun
Published: February 2015

According to the several problems existing in the supply logistics of the traditional automotive manufacturing logistics, the optimization solution to the supply logistics based on the RFID technology of internet of things has been proposed. The influence of the indication of the traditional supply logistics on the whole automotive manufacturing logistics was described in details. In terms of the core element, the business logic thinking and implement method of the RFID technology, applied in each connection relationship of the supply logistics, the optimization of the supply logistics structure was then achieved and the procedure of the optimized supply logistics was plot, which has also been analyzed specifically to indicate the direction for future study.
Study on Approximation Methods with Chebyshev Polynomial Models
Authors: Lin Jian Jun , Sun Yang , Zhang Yue Qiang
Published: February 2015

Modern automobile design technology often employed finite element analysis and computational fluid dynamics, which are computational expense and highly time cost and need to employ approximation techniques. We herein study a Chebyshev Polynomial Model-based approximation technique, and employ it for predictive design. Firstly, we investigated the multi-valuable function prediction on the model precision. We also employed cross-validation as error analysis method. The computational results from expensive optimization of CEC 2014 tested our predictive methods. The experimental results showed that the proposed method is suitable for solving the low dimensional function prediction problems.
Extraction of Inertial Parameters Based on 3D-Voxel Model of Equal Volume
Authors: Sun Ning , Wei Jin Min
Published: February 2015

Because of 3D model in continuous quality can be expressed by a lot of voxels with same size and small enough dimensions, a detection method of inertial parameters based on principal direction of voxel model is proposed. The method first searches three-spindle for voxel model by employing famous principal component analysis (PCA) method and establishes a new coordinates system by three-spindle above. Next, inertial parameters curve of the model can be obtained by calculating principal moment of inertia before translating the origin of the new coordinate system to the minimum point of the model and center of mass after that. The curve gives a geometric descriptor of the mode. Storing and matching the descriptor, the method calculates similarity between query model and database model, and then displays consequence according to the similarity from good to bad. Experiences show that the inertial parameters can be used as a kind of feature descriptor on the equal volume model and can be calculated easily.
The Application of Facies Modeling Combination of Well Data and Seismic Data in G25-12 Block
Authors: Wang Jia Hui , Lv Hong Sheng
Published: February 2015

The main purpose of lithofacies modeling is to get the actual reservoir lithofacies skeleton model which is maximum approximation of the underground reservoir. The facies model can effectively solve the problem of predicting sand bodies between wells. At the same time, we still use the stochastic modeling method to build the facies model of unconstrained single well simulation and sedimentary facies controlled constrained simulation. We elected the model which is most consistent to the actual geological conditions, providing theoretical guidance for characterizing the interwell sand body distribution law and improving the accuracy of predicting sand bodies between wells, laiding the foundation for further exploration and development of oil reservoir.
3D Model Retrieval Based on Distance Classification Histogram
Authors: Zhou Ji Lai , Zhou Ming Quan , Geng Guo Hua
Published: February 2015

This paper presents a new algorithm to retrieve 3D model on distance classification histogram. First, we select the certain number of random points on the model surface and compute the distance between two random points. Secondly, we sort the distance into two types which is based on the different geometry properties of these distance and construct the distance classification histogram. Finally, we measure the similarity of 3D models by comparing distance classification histogram. The experimental results on PSB show that our method has a good performance in precision and computational complication.
Object-Based Multi-Feature Classification of High Spatial Resolution Remote Sensing Image
Authors: Huang Xian De , Chu Heng , Wang Ru Yan
Published: February 2015

This paper analysis the characteristics of High Spatial Resolution Remote Sensing Image (HSRRSI), consider the drawback of pixel-wise Classification, an Object-based method was taken to classify the image. The paper firstly preprocess and coarsely segment the image, secondly optimize the segmented results for deeply processing, then extracting the image feature from the original image and segmented results, finally classify the image and assess the results.
The Research on Electric Power Enterprise Trainer Management System
Authors: Yuan Li Li , Liu Lin , Yuan Bai Li , Li Bin
Published: February 2015

This paper discusses the necessity of the management for power enterprise trainer. It proposed the use of intelligent computer technology to build electric power enterprise trainer management system according to the current status of the work of power. This paper analysis the current needs of the power of corporate trainer and proposed the overall architecture of power enterprise trainer management system, and design the function of each subsystem.
Development of High-End Agriculture Based on Dynamic Diamond Model
Authors: Bao Xue Dong
Published: February 2015

According to the discourses on the high-end agriculture and high-end industry, the concept and content of the high-end agriculture are discriminated and analyzed. The dynamic diamond model is proposed in this paper according to the stage of industrial development, and this model is applied to theoretical analysis and empirical study of high-end agriculture development, and relevant policy recommendations is clarified.
Based on ARCGIS-SDE Spatial Evolution Trend of Industrial Clusters Space
Authors: Fu Wu Yan , Zhou Yong
Published: February 2015

This article borrows ArcGIS10.0 software, which will be spatial analysis model standard deviation ellipse (Standard deviational ellipse, SDE) used to study the Guanzhong - Tianshui Economic Zone of each urban high-tech industrial clusters, each cluster to explore spatial evolution of the economic trends in the region, Empirical Study of ArcGIS software applications in a cluster aspects.
Theoretical Framework and Research Case of the Energy Enterprise Internal Auditing Management System’s Innovation and Upgrade
Authors: Wang Yang , Zhang Xue Dong , Liu Jian Bing
Published: February 2015

The energy enterprise group has its basic features and value properties, and it has the driving force of pursuing maximal value. As an important internal control mechanism, the internal audit system contributes to the value creation of the enterprise. The actual operating condition of the energy enterprise group is not consistent with its market performance. The value creation and development effect has not been recognized by the investors. Ignorance of the relationship between the management authority and its operating risk may lead to the damage of the energy enterprise value. Meanwhile, the transformation and upgrade of the energy enterprise group faces both opportunities and problems, which is important for the internal audit system to be improved through five directions—strategy improvement, function expansion, organization revolution, process reengineering and safeguard mechanism to meet the demands of the enterprise value development.
Acid-Base and Photoinduced Processes on Magnesium-Containing Minerals and their Influence on the Troposphere Cleaning
Authors: Daibova Elena B. , Minakova Tamara S. , Zakharenko Valeriy S. , Kosova Natalia I. , Kurzina Irina A. , Zotova Alla B.
Published: February 2015

Acid-base, adsorption and photosorption properties of microparticles surface of magnesium-containing compounds produced by dispersion of natural minerals after exposure to the air were studied. It was revealed that the reduction in predominant basicity of minerals surface in a range of periclase (MgO), brucite (Mg (OH)2) and magnesite (MgCO3) can be considered as a result of the presence of iron, silicon and magnesium oxide compounds. Quantum-chemical calculations made during the investigation, the decrease of pressure in the process of long-term contact of Freon 22 with the surface of MgO, irreversible character of adsorption and the absence of fluorine and chlorine-containing products in a gaseous phase give evidence of CFC destructive adsorption on the surface of magnesium oxide. The interaction of chlorine and fluorine derivatives of methane with the surface of aerosol particles from minerals in the darkness and under the influence of sunlight tropospheric radiation was studied. The evaluation of such interactions influence on the process of the Earth troposphere purification from carbon dioxide and dichlorofluoromethane during their adsorption and photosorption on the surface of precipitated aerosol was made.
Microstructural Changes in Co Films Depending on MOCVD Conditions
Authors: Hairullin Rustam , Dorovskikh Svetlana
Published: February 2015

In this work the effect of substrate and vaporization temperatures on the structural parameters (sizes of coherent scattering region, values of strain), phase and chemical composition, surface morphology of Co films is revealed. Co films were deposited on Si (100) substrates by Metal-organic chemical vapor deposition using the diiminate complex Co (N’acN’ac)2 as a precursor. The sizes of coherent scattering region, values of strain and phase composition of Co films were determined by the X-ray diffraction analysis. The chemical composition was identified by the Energy-dispersive X-ray spectroscopy. The surface morphology of Co films was investigated by scanning electron microscope. It is found that the variation of deposition conditions allows us widely to change structural parameters and chemical composition of Co films.
Synthesis and Optical Properties of CdSe and CdSe/ZnS Core/Shell Quantum Dots
Authors: Barik Puspendu , Mandal Arup Ratan , Kuznetsov Denis V. , Godymchuk Anna Yu.
Published: February 2015

In this work, we have synthesized homogeneous, ordered CdSe and CdSe/ZnS core/shell quantum dots (QDs) by chemical route and characterized them using X-ray diffraction (XRD), transmission electron microscopy (TEM), dynamic light scattering (DLS), and Photoluminescence (PL) spectroscopy. Coating with shell material was confirmed by red shift as well as enhancement in the PL peak compared to bare QDs. DLS data showed QDs and core/shell to be stable. PL spectra are red shifted relative to the excitation wavelength. Bare QDs and the core/shell material shows a Stoke-shift of 16 and 18 meV respectively.
Synthesis of CdS Nanoparticles by Laser Ablation of Metallic Cadmium Target in Presence Different Precursors
Authors: Goncharova Darya A. , Lapin Ivan N. , Svetlichnyi Valery
Published: February 2015

The special features of nanoparticles formation by laser ablation of volume metallic zinc targets in various solvents using sulfur precursors are studied. Semiconductor cadmium sulphide nanoparticles with average sizes 10–15 nm are synthesized by zinc ablation in the presence of hydrogen sulfide and thioacetamide, and their composition, structure, and optical properties are investigated. It is established that with the use of H2S, only CdS particles are formed in the medium.
Effect of Microwave-Hydrothermal Synthesis on Tin (II) Oxide Properties
Authors: Pichugina Аlina A. , Kuznetsova Svetlana A.
Published: February 2015

The article demonstrates how time and speed of pressure growth in the course of microwave-hydrothermal processing affect surface morphology and photocatalytic activity of tin (II) oxide. The experiment proved that the materials’ pore size and pore volume influenced their sorption activity and the speed of photocatalytic degradation of methyl orange.