bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Evaluating Method of Non-Renewable Energy Efficiency Based on China's Provincial Data: Green Growth Perspective
Authors: Yue Liang Wen , Wu Chun You , Zhang Mi'er
Published: February 2015

This paper integrated systematically the method of MFA, DEA, and the evaluation method of eco-efficiency, constructed a method of evaluating total factor non-renewable energy efficiency based on the perspective of green growth. And it defined the indicators system of evaluating total factor non-renewable energy efficiency. This paper gave an empirical research of total factor non-renewable energy efficiency, economic efficiency of non-renewable energy, environmental efficiency of non-renewable energy, and eco-efficiency of non-renewable energy, of Chinese provincial regions for the year 2012.Study results confirms: the method of evaluating total factor non-renewable energy efficiency of this paper, not only discussed the evaluating problem of total factor non-renewable energy efficiency of the process of non-renewable energy using, but also brought economic value, environmental influence and ecological cost into evaluating framework of total factor non-renewable energy efficiency; so it is a scientific and comprehensive tool of evaluating non-renewable energy efficiency, and is in conformity with the idea of green growth.
The Law of Reservoir Property Change both before and after Water Flooding in Liaohe Oilfield
Authors: Zhang Yan , Yu Shuang
Published: February 2015

In order to explore the change laws of physical properties and pore throat radius of reservoir both before and after water flooding to guide the oilfield in-depth fluid diversion, the reservoir properties are analyzed on the basis of core data of early exploratory well and inspection well in the middle and later stages of oilfield development. The theory of reservoir geology and development geology is used to study the change laws of reservoir properties both before and after water flooding in May 20th Development Area of Liaohe oilfield. The research result indicates that reservoir physical properties and pore throat radius have changed in the different period and different microfacies types of sand body [1-3].The permeability is changed far outweigh porosity in the physical properties of reservoir. And with the increase of time, the biggest change is the porosity and permeability of distributary channel, the next are margin of channels, mouth bar. The thin layer of channels and distal bar of physical properties have changed lesser or not. The pore throat radius has declined following distributary channel, mouth bar, thin layer of channels and distal bar in the sedimentary microfacies [4-5].The study results are helpful for the establishment of production measures at the later stage of oilfield development.
The Evaluation of Low-Carbon Building Based in Whole Life Cycle Theory
Authors: Shao Yu Han
Published: February 2015

Developing Low-carbon building is the essential measure for our society transfers to low carbon economic society. Therefore, we need chose appropriate policy evaluation tool that can help authorities to make suitable construction policy. The carbon emission in whole life cycle theory is a efficient tool to evaluate the value of Low-carbon building.
Three-Steps Allocation Model of Water Utilization Based on Synergy Theory: Take Y City for Example
Authors: Luo Wei , Zhang Yang , Tang Zhen
Published: February 2015

In view of lack of systemic analysis on the optimization of water utilization structure and water allocation, the paper construct three-step allocation model of water utilization based on synergy theory. In the first step, identifying optimal allocation of domestic water, industrial water, agricultural water, ecological and environmental water with the synergy among the different purposes. In the second step, giving reasonable weight of different types of water using unit with the synergy among the different subjects. In the third step, allocating different demand of water using units in different months with the synergy among the different time. Finally, take the allocation of water in Y city in 2015 for example, we give the analog allocations of the model.
The Predictive Analysis of the Energy Consumption and Environmental Emissions of Urban Passenger Transport of Beijing
Authors: Ren Zhao Jun , Gao Xiao Ling
Published: February 2015

A simple model of urban passenger transport was developed using computer based software called Long-range Energy Alternatives Planning System (LEAP), the model was used to carry out a research associated with urban passenger transport in Beijing to analyze the situation of energy consumption and environmental emissions ofCO2, CO, CH4, N2O, NOx, and SO2 for the base year 2012 and extrapolated till 2030 for the future predictions. The paper established four scenarios of business as usual, public transport, new energy vehicle, and P&N, and assessed the energy consumption and environmental emissions reduction potential of each scenarios in order to propose an optimal transport policy which have an excellent effect on reducing energy consumption and environmental emissions.
Evaluating the Regional Green Innovation Efficiency in China: A DEA-Malmquist Productivity Index Approach
Authors: Liu Gang
Published: February 2015

Green innovation has been the most important strategy for countries to gain sustainable development because of the popular environmental protection trend. By application of DEA-Malmquist productivity index approach, this paper evaluates the green innovation efficiency from the year 2005 to 2010 on the national, regional, and provincial level in China. The empirical results reveal that the green innovation efficiency at national level increases steadily, but differs a lot between the eastern, middle and western areas, eastern area best, western area worst and middle areas in the middle. Technological progress is the main enabler which promotes the green innovation efficiency of provinces, while the technological efficiency decline is the main barrier which blocks the green innovation efficiency of provinces. Based on the empirical results, this paper proposes the countermeasures to different development level provinces.
Emergency Treatment Research Based on Oil Monitoring System of Closed Water Ship Pollution
Authors: Shao Guang Ming , Yang Yi Ze , Zhu Guo Dong
Published: February 2015

With the development of economy, enclosed water area which is represented by lakes and reservoirs has become water environment sensitive areas in our country. The enclosed water pollution made by ships is increasingly serious. To strengthen inland river pollution prevention has become the urgent matter. Based on the ships motile pollution sources, we getting oil pollution information from the ship’s oil pollution monitoring and control system for oil pollution information, using Fay extension process of oil spill and Lagrange tracking method, analyze of oil pollution area and the change of position to lock oil range in advance and implementation pollution control as well as making an emergency response of ship’s pollution monitoring.
Ground Features of Sea Land Breezes in Hainan Island
Authors: Tang Xiao Lan
Published: February 2015

In this study, based on the observed surface wind in 8 meteorological stations at coastal locations of Hainan Island, the frequency of sea-land breeze (SLB) is studied to depict the characteristics and spatial-temporal variation of the SLB. The statistics indicate that, because of the large variation in coastal terrain and orientation of the island, the number of SLB days and the duration of the SLB at different stations has significant regional difference and seasonal variations.
A Typical Sea-Land Breeze Process in Hainan Island
Authors: Tang Xiao Lan
Published: February 2015

The automatic weather station data were used to research the evolution and impact factors of tropical island sea breeze convergence in September 2, 2010. Temporal and spatial variation of sea breeze convergence zone, atmospheric background field, physical field and other relevant factors about a typical sea-land breeze process in Hainan Island were diagnostic analyzed. Mesoscale meteorological model WRF was created to simulate the sea-land breeze. The results showed that the subtropical and tropical cyclone were the main synoptic situation which affected the temporal and spatial variation of the sea breeze convergence zone, so there was a significant difference of sea breeze process between both sides of the island. Mesoscale meteorological model WRF simulated the vertical structural features of sea-land breeze circulation and the evolution low of sea breeze convergence zone successfully, resolution of 45 × 15km having a better simulation effect.
Main Controlling Factors of Hydrocarbon Accumulation at Different Phases: A Study on the Main Fault Depression Zones of Central H Basin
Authors: Fan Zi Li
Published: February 2015

To understand the oil and gas accumulation rules and main controlling factors of H Basin at different phases, approaches such as reservoir dissection and analysis on the spatial allocation of reservoir accumulation conditions are adopted to divide the reservoir of the main fault depression zones of central H Basin into early and late phases. The widely-spread oil and gas at early phase are obviously more than that of the late phase. The main controlling factors of reservoir accumulation at early phase include source rocks area, antithetic faults - tilted upheavals and sand body of fan delta front subfacies while that of the late phase include sources rocks area, inverted structure and long-term developed fractures. The achievement of the study expounded in this paper is significantly important to correctly understand the oil and gas accumulation rules of complicated faulted-block fields and guide the oil and gas exploration activities.
Study on the Relationship between Soil Nutrients and the Corn Yield Based on Grey System Theory
Authors: Xu Xing Mei , Cao Li Ying , Zhou Jing
Published: February 2015

Take the test zone 110 sampling plots of soil nutrient content as the research data, to study the correlation between the soil nutrient content and the corn yield. It used the grey system theory to analysis the correlation between the content of soil nutrient, and established GM (1, N) prediction model. Soil nutrient correlation degree analysis showed that the correlation coefficient of available phosphorus and available potassium were 0.4742, 0.4492, it has a significant effect on the corn yield, the average prediction error of the GM (1, N) model was 7.38%. The model reflected the relationship between soil nutrient content and the corn yield well; it can be used to predict the yield test area.
The Reduction of Haze Weather in the Sight of Solid Waste Incineration
Authors: Zhang Zhi Liu , Mi Hai Rong , Liu Gui Fang , Cheng Gong , Jia Jing Jing
Published: February 2015

The paper starts with haze weather, gives a brief introduction on the relationship between the generation of haze and the solid waste incineration. Introduced the popular incineration technology at home and abroad, analyzed the fly ash and acid gas which comes from waste incineration. At last, the paper expounded the processing and application of fly ash in the sight of resource recovery.
Some Numerical Simulations of Circulation in the East China Sea
Authors: Zhou Xu Bo , Yan Xu , Sun Wen Xin
Published: February 2015

By using the self-adaptive numerical model, 3-dimensional bar clinic Lagrangian circulation in the East China Sea (the Bohai Sea, Huanghai Sea (Yellow Sea) and East China Sea) (ECS) in winter and summer is computed, the results reflect well the features of the circulation in the ECS. The conclusion that “the Huanghai Sea Warm Current in winter is the mixing water of the Tsushima Warm Current and the continental shelf water, it is not a direct branch of the Tsushima Warm Current” is inconsistent with the traditional viewpoint, but agrees well with the actual observations.
Research and Application of Multi-Slug and Equi-Fluidity Oil Displacement Mechanism
Authors: Zhao Jiang Min , Li Tian Ge
Published: February 2015

In this paper, several aspects of the improvement of the oil recovery were analyzed theoretically based on the mechanism that equi-fluidity enhances the pressure gradient. These aspects include the increase of the flow rate and the recovery rate, of the swept volume, and of the oil displacement efficiency. Also, based on the actual situation, the author designed the oil displacement method with gathered energy equi-fluidity, realizing the expectation of enhancing oil recovery with multi-slug and equi-fluidity oil displacement method.
A Numerical Model of Circulation in the East China Sea
Authors: Zhou Xu Bo , Yan Xu , Sun Wen Xin
Published: February 2015

The coastal circulation is one of the focuses in environmental protection. A self-adaptive numerical model of the circulation in the East China Sea (the Bohai Sea, Huanghai Sea (Yellow Sea) and East China Sea) (ECS) is established for the first time. By using a self-adaptive grid system, the grids are denser at the continental slope of the ECS. Thus, the difficult problem of applying a 3-dimensional (3D) baroclinic model with coordinate transformation at continental slope is solved. This model can be used to simulate 3D baroclinic current fields and to obtain wind-driven, thermohaline and tide-induced Lagrangian circulation.
Research Strategies on Sustainable Building Design
Authors: Yu Hong Xia , Ding Shi Yang
Published: February 2015

Due to energy consumption of buildings, sustainable design has become a popular consensus. Based on the passive design and integrated solar energy, this paper introduces how to design in a sustainable way, as well as case study, so as to encourage sustainable development of architectural design.
The Nonlinear Finite Element Analysis of the Rigid Steel Column Base Connection with Anchor Bolt under Biaxial Bending
Authors: Zhou Fan , Li Cheng Yu
Published: February 2015

The nonlinear finite element analysis of the rigid steel column base connection with anchor bolt under biaxial bending, including the column base stiffeners, base plate, anchor bolts and other nonlinear interaction analysis, to provide a frame of reference for the rigid steel column base connection’ designed.
Boiler Air Preheater Plugging Analysis of Grey and Related Problems
Authors: Zhang Rui , Peng Ke , Wang Shi Hao
Published: February 2015

Through the No. 5 boiler of a power plant in Jilin lower abrasion of economizer and air preheater of the inspection, find out the causes of air preheater of clogging, and conducted a detailed analysis of the low temperature corrosion of air preheater, puts forward relevant suggestions for improvement.
Numerical Simulation of Gas Pipe with High Temperature and High Pressure
Authors: Liu Jin Mei , Shao Ting , Zhou Guo Qiang , Zhang Guo Wei
Published: February 2015

Aiming to characteristics of structure and transmitting medium of gas pipe with high temperature and high pressure, considering the coupling effect of static pressure and temperature, the thermal structure coupling model based on steady-state heat conduction is established according to the finite element theory. So method and process of numerical simulation on thermal structure coupling analysis are proposed. Simulation analysis is carried out for the gas pipe of a dry-gas compressor. The variation characteristic of inner-outer wall is revealed under the different temperature. The results indicate that the numerical modeling and simulation of thermal structure coupling of gas pipe with high temperature and high pressure can be realized. It can provide valuable reference opinions for site construction, real-time monitoring and safety analysis of pipe.
Design of a Multifunctional Body-Building Rehabilitation
Authors: Dong Ming Wang , Luo Si Ming , Yang Ting Ting , Wu Lin
Published: February 2015

Design a special needle for a set of legs, waist, arms and back exercise and massage in one multi-functional fitness rehabilitation in view of the existing fitness equipment with single function, single object problems, to Mainly by foot, twisting part, transmission part of seat back massage department, and arm exercises section guide rail bracket and a base; the base is located in the bottom, in contact with the ground; the foot part of the drive through the bevel gear and the twisting seat part of a pair of meshing connection, and through the chain wheel bracket fixed with the base seat; twisting part and the guide rail bracket are fixed on a base; a back massage part arranged in the back part of the seat position twist, is fixedly connected with the guide rail bracket; arm exercise part is arranged right above the waist of the seat, and the guide rail and the guide rail bracket with the fuselage rear; with can move up and down and arm exercise device rotating machine has the entire fitness; a variety of functions, covering small area, can exercise and massage on people's legs, waist, back and arms, to meet the various needs of people.
The Analysis of the Static Mechanics for the Vehicle Frame
Authors: Wu Wei Cheng
Published: February 2015

As an important part of the automobile assembly, automobile frame bears the complex loads from the road and loaded, and be installed car assembly as the carrier, and thus the frame strength and stiffness in the car overall played a very important role in the design. This article use Solid Works to design a frame of a truck, and focus on using the finite element analysis software ANSYS study mechanical analysis and study of the vehicle frame. Here discussed the pure bending conditions and reverse the conditions of static strength, the static stiffness analysis. The analysis showed that the frame of the stress value is less than the ultimate strength of materials to meet the design requirements, but the intensity is too large, so the economy is relatively poor, while considering the local strength of the frame. According to this characteristic of the truck frame, this paper presents a program on the frame lightweight design, the results of optimization makes the weight of frame to reduce, saving raw materials, lowering production costs, improving fuel economy .
Installing & Remolding of Air Gun Source to Research Vessel “Yanping 2”
Authors: Sun Mei Qin , Zhang Yi Feng , Yan Pei
Published: February 2015

Fujian Seismological Bureau and Fujian Marine Research Institute co-established the geophysical exploration platform of “Yanping 2” on basis of a long-term and comprehensive partnership sticking to the principle of equality, reciprocity and complementary advantages. The cooperation meets the requirements of Fujian Seismological Bureau to conduct marine geophysical prospecting and marine seismic observation and research in Taiwan Straits and adjacent areas. According to the cooperation agreement, “Yanping 2”, apart from the its original operation capacity, will be remolded into a vessel compatible to air gun source system and related devices will be installed. The accomplishments of remolded “Yanping 2” demonstrate that the sub-systems of “Yanping 2” can live up to relevant standards, and the remolding and installing of air gun source to “Yanping 2” has been successful.
Numerical Study of Dynamic Ground Effect of a Carrier-Based UAV
Authors: Yang Mu Qing , Ma Dong Li
Published: February 2015

The paper uses computational fluid dynamics combined with sliding mesh and dynamic layering methods to study the dynamic ground effect of a UVA during the phase of takeoff. The research focused on longitude characteristics, such as lift, drag and pitching moment. Results showed that the aerodynamic force would vibrate acutely, which affected the stability of the UAV and the safety of takeoff. Pitching angle is the most important factor influencing the aerodynamic forces. Increase the pitching angle properly is benefit to the safety of takeoff operation.
The Research on Metal Milling about down Milling and Inverse Milling for Application
Authors: Wang Shi Min , Zhao Dong Quan , Deng Rong Qi
Published: February 2015

Milling is a rule in milling machine using the rotation of the milling cutter movement, the movement of the work piece forward movement to machining of cutting method. In processing, the direction of rotation of the milling cutter is generally the same, but the cutting direction of tool is changing. In milling of common two phenomena: down milling and inverse milling. In order to improve the surface quality of machining and reduce tool wear, and thus improve the production efficiency and economic benefit, this paper expounded from different angles and compared the advantages and disadvantages of two types of milling, In order to the future production mechanical processing industry provides the theoretical basis and technical support.
The Characteristic Research of Inertial Mechanism under the Condition of No Friction Contact
Authors: Dong Run Chao , Wang Qing Ming
Published: February 2015

Inertial propulsion is a kind of special drive converting rotating motion to a one-way movement. This triggers a lot of attention, but also causes many controversies. This paper researches the inertial mechanism under the condition of no friction contact. Mathematical model is established, equations of motion are got, influence of impact force of the eccentric mass during the process of start to steady state is analyzed, movement simulation is made, and the experiment on the water is done through ultrasonic sensor. The conclusion is that the inertial mechanism we researched can only do reciprocating movement under no friction contact and one-way movement cannot be realized.
Temperature Field Analysis of LNG Tank under Ultra-Low Temperature Based on Finite Element Method
Authors: Yang Ming Shuo , Zhao Bin , Liu Jing Wei , Cai Hong Gang
Published: February 2015

LNG tank has extremely low operating temperature, hazardous storage medium and large capacity storage space, therefore it is necessary to carry out temperature field analysis for LNG tank under Ultra-low temperature, and the temperature of LNG tank under Ultra-low temperature is simulated based on finite element method. Firstly, the finite element model of temperature field is analyzed. Secondly, the simulation parameters of LNG tank under Ultra-low temperature are given. Finally, the simulation results are carried out, and the temperature field of LNG tank under Ultra-low temperature is obtained.
The Portable Unit for the Online Measurement and Fitting of Large Curved Surface
Authors: Kong Xiao Nan , Ji Yun Kang
Published: February 2015

Measurement of curved surface having large radius of curvature is still a problem for the modern industry measurement. The method of measurement based on laser range finder is a method commonly used in modern industry measurement, which can solve this problem. The system has larger measurement range and higher precision, it belongs to the non-contact measurement systems, so the measured piece could be freely set. Establish an appropriate measurement system based on surface features; obtain the spatial coordinate of the detection points of the measured curved surface through laser ranging; acquire the three-dimensional diagram of the surface features of the curved surface with matlab-based curved surface fitting software; automate the detecting system via the singlechip-based automatic control system. The present device had advantages of high accuracy, convenience and shortcut, low cost and strong adaptability to environmental conditions, which can effectively compensate for the present vacant situation of the portable large curved surface measuring device and have wide applications.
The Experiment of Viscosity Loss Caused by the Polymer Flow along Transportation Pipeline
Authors: Wang Yue , Cao Guang Sheng , Wang Gui Long , Sun Sheng Kun , Li Xin
Published: February 2015

By using polymer solution with high viscosity, polymer flooding can enhance oil recovery by reducing the mobility ratio of displacing fluid and oil in formation. Therefore, the core of polymer flooding's ground transportation is to keep the viscosity of polymer solution unchanged. According to the process layout of polymer ground transportation, the experimental device was designed and manufactured to determine viscosity loss of pipelines and elbow. We obtained the viscosity loss variation law of the polymer solutions of different concentrations at different flow velocities when they flow through the pipeline and elbow. The experimental results showed that the viscosity of polymer solution will decrease after the polymer solution flow through pipelines and elbow, due to the shear effect. The higher the velocity, the more significant the viscosity loss.
Research on Heat and Mass Transfer of Flat Grooved Heat Pipes
Authors: Cao Lei , Zhao Guo Chang , Song Li Ping , Lu Tian Dong
Published: February 2015

Flat grooved heat pipes, which are especially useful in obtaining a high degree of temperature uniformity on flat surfaces, have been successfully used in the temperature control of electronic systems, however, the mechanisms governing the flow and heat transfer of this kind of heat pipes are still under scrutiny as some reported results cannot be reproduced by others or some assumptions have been proven to be unreasonable or ideal. The theoretical and experimental studies on flat grooved heat pipes and introduce work performed on modeling flat grooved heat pipes are reviewed in this paper.
Non-Contact Online Detection of Concentricity Error
Authors: Zheng Hong
Published: February 2015

This paper researches on the non-contact online detection of concentricity error, which mainly focus on the structural principle of the measurement system and the concentricity error evaluation methods. The paper using the method of projection, converting the three-dimensional model to a two-dimensional model and evaluating coaxially error. And it is validated by the simulation of MATLAB. In theory, the proposed measurement system can measure geometric tolerance, including coaxially error, cylindricity error, circularity error, etc.
Study on Improving the Empirical Formula of Calculating Francis Turbine’s Axial Hydro-Thrust
Authors: Zhao Xi , Zhu Li
Published: February 2015

This paper improved the empirical formula so that it can calculate the axial hydro-thrust under different working conditions. Then based on the operational parameters of a hydropower station, two calculation methods were used to calculate axial hydro-thrust and made comparative analysis. The results show that the improved formula is simple in computation and closely combined with parameters like flow, head and speed, and its calculation accuracy satisfies the engineering demand.
Design and Realization of a New Intelligent Capacitive Load Switch
Authors: Mi Hong Ju , Yi Bin , Wang Wei Jun , Wang Wen Qiang , Zhao Hong Wei , Mao Long Bo
Published: February 2015

Based on the requirement of reactive power compensation of the intelligent power grid, a new type of capacitor switch design is presented. Starting from the characteristics of switching devices, research on the working timing between impulse switch and thermistor, build the controller hardware system based on ARM core, implement of power system parameters’ collection, capacitor switching control and human-computer interaction, etc. The embedded LINUX operating system is proposed for a better solution to multi-task, real-time and upgrade requirements in power intelligent control. At the same time, switching algorithm based on fuzzy control theory is adopted to improve the reliability of this switch.
Design of Boring Machine Electrical Control System Based on Omron PLC
Authors: Lei Jun , Luo Min , Jia Rong , Wu Yue Min
Published: February 2015

Deep whole boring machine is a kind of special machine for processing cylindrical parts. In this paper, considering the factory actual situation, an electrical control systems of deep hole boring machine that combine the relays, contactors and PLC control together is designed based on Omron PLC. In addition, using the touch screen monitor, reliability and flexibility of the electric system is improved.
The Research and Development of Motor Cooling Control System Based on Electronic Parking Brake Test Bench
Authors: Xiong Jing Jing , Zhou Li Tao
Published: February 2015

When Electronic Parking Brake test bench validates the function of ramp start, Electronic Parking Brake (Simplified as EPB) control motor has been blocked state, the motor heat is large. Followed putting forward the performance required by the motor cooling system, and the cooling control system scheme and the control strategy of intelligent electronic pump motor by building a mathematical module about cooling system of EPB motor, this paper designs and develops the electronic water pump motor controller, including the efficient control on the pump, and the communication with the main controller, which is based on CAN bus and SAE J1939 and optimizes the hardware and software of motor controller so that the pump efficiency may reach 32%. The product-level design, shown by a large number of performances testing, is achieved.
Single-Phase Independent Droop Control Strategy in Low-Voltage Microgrid
Authors: Zhang Zhong Lin , Wang Tao
Published: February 2015

In the three-phase four-wire low-voltage micro grid, three-phase imbalance usually happens because of a large number of single-phase loads. In this situation, the traditional control method cannot effectively control the voltage and frequency stability when the low-voltage micro grid operates in the island mode. According to the characteristics of the three-phase four-wire low-voltage micro grid, this paper designs a single-phase independent control based on the droop control. This paper firstly uses the improved droop control considering that the impedance characteristic of the low voltage micro gird is mainly resistance, and also designs single-phase independent control to ensure the control system have the ability to run under the unbalanced loads. Then this paper designs a two-level control strategy to control the voltage and frequency in the micro grid during the island operation. Finally, a simulation analysis based on the proposed method is used to prove the effectiveness. A micro grid is set up on PSCAD, and verifies the effectiveness of the single-phase control strategy based on the improved droop control. The proposed method can also realize the requirement of the voltage and frequency stability during the island operation. At the same time, the control method proposed in this paper can achieve the control objective under the condition of unbalanced three-phase.
Grid Connected Photovoltaic Simulation System Based on TMS320F28027
Authors: Deng Xie
Published: February 2015

This device uses TMS320F28027 as the control core. It realizes functions of MPPT, frequency and phase synchronization, under voltage and over current protection, under voltage recovery and so on. It displays its main information on the LCD screen, providing a good man-machine interface. The topology of the main circuit is full bridge inverter which is controlled by doubled frequency SPWM modulation. MPPT is realized with constant input voltage method. Phase tracking is realized with software PLL. The performance of this device is satisfying. The relative voltage error is less than 0.7% when doing MPPT. The relative frequency error is less than 0.09%. The phase error is approximately 2°. The THD of the output voltage is less than 2%. The action voltage of the under voltage protection is 25.02V. The action current of the over current protection is 15.0A. The efficiency of this device is over 84%.
Design of Belt Conveyor Control System Based on Motion Controller
Authors: Zhang Chun You
Published: February 2015

Belt conveyor is a kind of continuous conveying machinery that its transmission capacity is large, it is widely used in many industries and it has broad prospects. Belt conveyor is commonly used the traditional PLC to control, the openness is low, the portability is poor, and it is not conducive to the development of the belt conveyor. This paper presents a design of belt conveyor control system with motion controller as control core; respectively the hardware design and software design are introduced. The control system has good flexibility, high open degree, it is in line with the future development trend of belt conveyer, and it has certain guiding significance.
Blasting Hole Recognition and Location Based on Machine Vision
Authors: Chen Cong Ping , Huang Zheng
Published: February 2015

In order to guide the manipulator putting explosive into the blasting hole automatically, a hole recognition and location method based on machine vision is presented. First, capture the target blasting hole pictures from two different directions by a camera mounted on the manipulator. Then, use binocular calibration method to get the hole position based on the camera coordinate. Finally, transform the camera coordinate system to the manipulator coordinate system, and then the target hole position is obtained. The experimental results show that this method has high detection accuracy and achieves a better blasting hole location.
ROS Based Voice-Control Navigation of Intelligent Wheelchair
Authors: Zhang Yi , Xu Shi Chuan
Published: February 2015

Compared with the traditional electric-powered wheelchair, people are paying more attention on intelligent wheelchair. While the traditional intelligent wheelchair relays on separate designed control system, it is not good for general use. In that case, ROS provides an easy to use framework for rapid system development so that the researchers can develop various software packages to meet their needs, and we can also call each other packages without considering the compatibility problems. In this paper, we present a ROS (Robot Operating System) based intelligent wheelchair with the function of voice-control navigation. Compared with the traditional navigation, the voice-control navigation is more human. Obviously, ROS increases the versatility of system and reduces the cost. In order to prove the advancement and feasibility of this developed system, some experimental results are given in the paper.
A Study on Digital Model and Simulation Method of Pulse Doppler Fuze
Authors: Li Xiao , Chen Ning , Zhao Qi
Published: February 2015

Fuze digital model was established based on characteristics of RF devices and target scattering properties calculating. On the basis of this model, a simulation method was proposed to replace simplified model such as antenna pattern. Results show that the simulation can realize simulation of nonlinearity and signal level for fuze system with a good generality, and have high applied value in fuze-warhead system design.
Modeling and Simulation of a Hydro-Pneumatic Accumulator System for Hybrid Air Development
Authors: Li Hao , Zhu Yuan Hao , Xin Yu Hua
Published: February 2015

To meet the increasingly stringent environmental protection regulations, there had emerged several technologies in the electrification of powertrains in hybrid vehicle, such as HEV and EV. However, these also led to increasing costs which could greatly affect the markets. So, here introduce a new type of full-hybrid powertrain that combines a petrol engine and a compressed air energy storage unit instead of a battery, offering an alternative to electric hybrid solutions. This paper laid the emphasis on the multi-domain modeling and simulation of a hydro-pneumatic accumulator system, and then continues to study its dynamic behavior of the compressed air and output performance of the pump/motor with simulation. Results show that the system possesses a high applied value in a given hybrid air system.
Analysis of the Application of the Internet of Things Technology in Environmental Monitoring
Authors: He Guang Ming
Published: February 2015

In this paper, it introduces the basic concept and key technology of the Internet of things compared to the traditional environment of information technology. It also talks about the application of Internet of things of information collection, transmission and processing technology in environmental monitoring and other environmental supervision, which will promote the development of networking technology application in the environmental regulatory. At the end, some suggestions are put forward from aspects of technology and management.
The Local Structure Research on the Nanpu 5th Construct
Authors: Qiu Chun , Zhang Ming Xue , Lv Xiao Yan
Published: February 2015

The Nanpu 5th construct is in the western part of Huanghua Depression Nanpu Sag of Bohai Bay Basin, was a complicated anticline belt that develops between Jian Dong fault and the downthrown side of the southwestern Zhuang fault and the favorable exploration area is 120km2. On the basis of the region's large number of multi-channel seismic data analysis and interpretation, the trap types, structural characteristics and distribution of local structures between the layers of the region are researched. Interlayer local structures in the area are mainly divided into nose structure and small anticline. The fault zone is a structural high in the region, to promote oil and gas to migrate and accumulate to the low-potential zones that become favorable zones for hydrocarbon accumulation, but the real decisive construct parts of the hydrocarbon accumulation is positive local structure in favorable zones which point out the region for hydrocarbon accumulation.
The Research on Monitoring System Design and Implementation for the Network Security
Authors: Ren Qiong , Tao Jun
Published: February 2015

Taking into account the safety of itself and high reliability and high availability features, we need to do to design more complete security monitoring system, which combines detection equipment, actuators and monitored objects together to form a whole, including the network directly to the monitored object inspection, monitoring and control process. This paper presents a systematic framework that through data collection, analysis, processing, rules, standards, violation, stop, and record all the process to achieve the protection and monitoring of local or remote computers all kinds of information, and then discuss the modules and systems different functions.
Research on the Application of Chinese Search Engine
Authors: Wang Jian Fei
Published: February 2015

Compared to the high-speed growth number of the Internet users and online Chinese information. The development of Chinese search engine appears relatively lag. This paper takes the interpretation of Chinese search engine as the breakthrough point, by analyzing the working principle of search engine, combined with the analysis of the current Chinese search engine in the page acquisition module, processing module, data retrieval module and data organization module as well as the problems and defects existed in them, trying to search the corresponding improvement strategies.
Analysis of MIDI Audio Files Based on Method of Information Quantity Estimation
Authors: Xia Dan
Published: February 2015

In order to protect the security of information networks, a dedicated MIDI audio steganalysis algorithm is proposed. The least significant bit embedding scheme in MIDI audio is discussed, and the parameter of music velocity is picked up, and the steganalysis in MIDI audio based on entropy estimation is analyzed. Experiments show that when embedded rate is high, FPR and FPR are all slow, and the entropy estimation could be taken as a dedicated MIDI audio steganalysis algorithm.
An Optimized Low-Power-Consumption Tracking Algorithm Based on Navigation Message Structure for Weak Signals
Authors: Tian Feng , Huang Yang Bo , Xu Bo , Ou Gang
Published: February 2015

In order to reduce the power consumption of handset GNSS receivers, we present a novel algorithm that tracks signals at fixed positions of the navigation message in an intermittent mode. The tracking channels only run during the beginning part of the message frame. In the rest they remain in idle state, to reduce power consumption of the channel. The beginning position of each message frame can be estimated accurately, and the beginning messages are constant or can be estimated, thus the coherent integration time can exceed one navigation bit, which can improve the Doppler frequency estimated accuracy. At the fixed position of the frame, the tracking channel only tracks the pseudo-code phase, and does not track the carrier frequency and phase. This algorithm can keep stable tracking for weak signals with 28 dBHz carrier-to-noise ratio (C/N0), while using only 2% of the power required by the computation associated with the traditional tracking.
Suffix Tree Constructing Algorithm for Datasets with Discrete Contents
Authors: Jin Zhen Zhong , Huang Zheng , Zhang Hua
Published: February 2015

The suffix tree is a useful data structure constructed for indexing strings. However, when it comes to large datasets of discrete contents, most existing algorithms become very inefficient. Discrete datasets are need to be indexed in many fields like record analysis, data analyze in sensor network, association analysis etc. This paper presents an algorithm, STD, which stands for Suffix Tree for Discrete contents, that performs very efficiently with discrete input datasets. It imports several wonderful intermediate data structures for discrete strings; we also take care of the situation that the discrete input strings have similar characteristics. Moreover, STD keeps the advantages of existing implementations which are for successive input strings. Experiments were taken to evaluate the performance and shown that the method works well.
Solving Computational Expensive Problems with a Response Surface Surrogate Models
Authors: Lin Jian Jun , Liu Cheng Long , Zhang Yue Qiang
Published: February 2015

Modern CAE technology is widely used in modern automobile design, engine design and so on. But its computational expense and highly time cost reduce the efficiency of design. The paper studied a respond surface model-based technique for predictive design. Firstly, we study and compare the four kinds of polynomial orders of RSM technique. Then we use Latin Hypercube technique choose enough sample points for approximation. At last, we employed cross-validation error analysis for error analysis. The results of expensive benchmark functions of CEC 2014 tested our predictive methods.
Surrogating for High Dimensional Computationally Expensive Multi-Modal Functions with Elliptical Basis Function Models
Authors: Zeng Wei , Wang Xian Chao , Wang Ying Sheng
Published: February 2015

In the engineering design process, approximation Technique could guarantee the fitting precision, speed up the design process and reduce design costs. To a certain extent, surrogate models could replace time-consuming and highly accurate computational fluid dynamics analysis gradually. In this paper, we take Optimal Latin Hypercube Sampling experimental design strategies to determine the sample space and error analysis test sample, adopt the principle of infilling criteria based on the maximum error to improve the accuracy of the surrogate model, test the unimodal and multimodal expensive functions of 10 dimension, 20 dimensions and 30 dimensions, study the performance and scope of EBF-NN surrogate model based on infilling criteria by comparing the RBF-NN surrogate model.
Influencing Factors Analysis of Iron Ore Tailings Comprehensive Utilization
Authors: Li Yu Feng , Wang Xiao Yu , Bao Jing Ling , Zhang Jin Rui
Published: February 2015

This paper finds out four kinds of main influencing factors of the comprehensive utilization of iron ore tailings from the historical and realistic perspectives: single view of development of economic growth, views of useless waste, insufficient science and technology, and inadequate management systems, which plays an important role in guiding the development and use of iron ore tailings.
Group Synchronization Analysis of Network by Matrix Theory
Authors: Yang Ya Fang
Published: February 2015

In this paper, we propose the group synchronization of fractional-order network for the first time. The stability analysis of group synchronization is discussed by matrix theorey. Moreover, schemes and criteria for group synchronization is derived. Illustrative examples are presented to show the validity of the proposed methods.
Analysis of Extreme High-Temperature Time Series Based on Empirical Mode Decomposition
Authors: Ma Hao
Published: February 2015

In this paper, considering the nonlinear and non-stationary properties of extreme high-temperature time series, we introduce Empirical Mode Decomposition to analyze the extreme high-temperature time series from 1959 to 2012 in Fengxian district of Shanghai. The scale characteristics and oscillating mode characteristics were mainly investigated. The trend of extreme high-temperature also shows periodic variation from decreasing to increasing for the recent fifty years. Analyze the reconstructed modes with the wave pattern: It shows that variability are quite large from 1997 to 1999 and from 1977 to 1982, which shows extreme high-temperature rose and fell dramatically in these periods. The volatility from 2006 to 2008 is far more dramatic than the other times. And it is the most remarkable in the recent fifty years.
Evaluate the Efficiency of Chinese Regional Quality Development Based on DEA and Malmquist Index
Authors: Ma Li , Zhang Wu Yi
Published: February 2015

This paper puts forward a kind of method to evaluating the efficiency of quality development based on DEA .By Making a static efficiency evaluation for the quality development of 31 provinces in China with DEA model and Malmquist Index based on the quality competitiveness evaluation index system, the efficiency of the development of Chinese quality based on the dynamic time sequence have been got. The results showed that the input resource allocation of most provinces is unreasonable on the static time sequence. A low quality development efficiency has been leaded to as a result. The technical efficiency is the most influential in the all, it increased unstably but potentially from 2008 to 2012 based on the dynamic time consider. Therefore, we should pay more attention to technical innovation, in order to developing the development efficiency of quality.
The Research of Supply Chain Optimization Theory Based on Service-Oriented Manufacturing
Authors: Guo Bai Li
Published: February 2015

This paper analysis the elements and realization form of hybrid supply chain, and describes the relationship between the service-oriented manufacturing and hybrid supply chain based on the concept, attribute and function of the service-oriented manufacturing model. Article concluded that under the service-oriented manufacturing model of the traditional supply chain integration and optimization, there are two ways: hybrid supply chain model based on endogenous and hybrid supply chain model based on symbiosis. When manufacturing enterprises selected hybrid supply chain model based on endogenous, value evaluation has become a key issue for its optimization; when the selection is hybrid supply chain model based on symbiosis, effective choice of partners will become a key problem for its optimization. Either endogenous or symbiotic hybrid supply chain model will eventually encourage manufacturing companies to build a supply chain optimization model to adapt to their own development, achieve a successful transition to the service-oriented manufacturing.
Analysis of Technique-Economy Studies of Branch System Calculation Method
Authors: Tang Chao Chun , Ye Xin , Chen Hui Min , Liu Min
Published: February 2015

With the node continuity equation, the energy equation and the pump head ring for hydraulic constraints, and the principle of virtual ring, Objective function is (the annual cost of the conversion value) W0 minimum value of solving analysis and calculation, structure Lagrangian function, using the node equations, virtual ring energy equation, after adjustment tree pipe network virtual flow head loss hij economy and economic diameter Dij expressions, The final results is ,Propose a more complete technical and economic calculation tree pipe network analysis methods.