Advances in Engineering Research

In this paper, with advanced computer technology and distribution network planning theory, studied with GIS-based distribution network planning aided design system. This paper analyzes the problems of distribution network planning, proposed the use of FME technology planning data integration and appreciation...

Water quality assessments are essential for providing information to water resource management processes. The objective of this study was to investigate the internal correlation among water parameters, to analyze main water contamination and to identify the most polluted section along a seagoing river....

Design a new photovoltaic grid connection device based on Freescale MK60FN1M0 processor and Multi-mode wireless communication technology. In terms of Modbus protocol, MK60FN1M0 communicates with photovoltaic inverter, the device acquires measurement data such as: DC voltage, DC current, AC voltage, AC...

This paper presents a new method of injection of high voltage pulses (IHVP) during commutation in order to shorten current’s rising-edge time and reduce the torque ripple. A quantitative method for choosing the voltage magnitude and the pulse width is put forward with trapezoidal back EMF under square...

Viscous fingering phenomenon happens during CO2 flooding because of viscosity differences between CO2 and crude oil. It leads to premature breakthrough of displacement fluid and decrease of sweep efficiency. In this paper, a three dimensional Diffusion-Limited-Aggregation model based on pressure-oriented...

The traditional reliability models of CNC machine tools are based on the assumption that the machine after repair is as-good-as-new or as-bad-as-new. But it is not the precise model compared with the Engineering practice. This article focuses on the repair degree to the sub-system of CNC machine tools,...

Based on the AR4000-LIR type infrared laser rangefinder, the prototype of the 3-D laser-scanning-based machine vision system for robotic construction vehicles is developed and the software for scanning control, swing control and data sampling/processing is programmed. The experimental results show that...

Based on the Z source inverters operating characteristics studied, and has carried out harmonic analysis by simulation of its output voltage. Through the reasonable design of carrier frequency, filter design and triple frequency harmonic injection method to suppress the output voltage harmonic, the Z...

Modern city landscape environment construction, unified in respect history, respect for life and need more historical landscape connotation and contemporary science and technology civilization. In the modern city construction tide in the city, the historical memory may be transient, city and so become...

In LTE-A system, there are generally two types of frequency offset: fixed frequency offset and Doppler frequency offset. In the paper, firstly, the estimation of fixed frequency offset and Doppler frequency offset is introduced, then several improved estimation schemes is proposed. Secondly, with the...

Traditional recommendation methods usually focus on utilizing user’s features obtained from structured behavior information, which only contains coarse grained user interests. This paper presents a novel approach to introduce aspect-based sentiment analysis (or opinion mining) into recommender systems....

On December 14, 2013, Chang'e-3 set down on the moon, making China the third country in the world to set a soft landing with a lunar probe. It is a great honor for us Chinese, but also a great challenge for the project staff through the whole process. Of the characteristics of automatic navigation control,...

With the rapid development of computer technology, the extensive application of digital media technology in art design field, it changed from the most primitive hand-painted production to the modern high-tech computer software to achieve the best results. The role of digital media technology has spread...

Objective: Use the fuzzy neural network (FNN) model to diagnose four kinds of digestive tract diseases. Methods: 70 cases were randomly selected from 100 cases of gastrointestinal system diseases as training set, with 15 cases as a verification set and 15 cases as a test set. First, the FNN is trained,...

There is a clear boundary between primary and secondary devices in traditional substation. The intelligent demand of intelligent substation is analyzed. According to the design idea and method of intelligent substation, the integrated application scheme of the disconnecting circuit breaker, intelligent...

A robust optimization model of resource-constrained critical chain project scheduling problem is introduced. Stochastic programming method is used to describe the uncertainty of activity duration. Based on the traditional critical chain project scheduling mode, a genetic algorithm is introduced, and...

This paper introduces a chip waveform distortion model of satellite navigation signal in time domain that is adopted by ICAO, and then proposes a FPGA implementation method with which three categories of chip waveform distortion of navigation signal in time domain are modeled. A comparison is made between...

In recent years, Intrusion detection has been the focus of security research for Wireless Sensor Networks (WSN). Some approaches or mechanisms have been designed for WSN. But none of them has been widely applied. In this paper, a scheme based on sensor node clustering and statistical model for WSN is...

Real-time SCADA system bears, near real-time control of the business and management information services, high data reliability requirements, SCADA systems also need to be connected with higher-level automation systems, office MIS systems, and high network utilization, there is a many security risks....

An efficient extraction and purification technique based on ultrasonic microwave-assisted extraction (UMAE) method was established to obtain phenolics-enriched fraction from jackfruit by-products (JPEF). Optimisation of the extraction parameters for maximum extraction yield of JPEF was carried out using...

Aimed at the problem of product modeling under Mass Customization, concepts of the characteristic matrix and matrix row were proposed. The function-structure model based on product network nodes was established by the combination and identification of characteristic matrix under the function-structure...

This paper presents a novel LNG air vaporizer that evaporates LNG using hot air generated by a solar wall. The simulation results and an overview of the thermal performance assessment are presented in this work. The simulations were made by use of the CFD software FLUENT to investigate the variation...

Environmental issue has always been the focus of world attention, actions of human being business, and society must be based on environmental protection. From the perspective of enterprise, wastes in the production process has become an important object of environmental protection actions. Recycling...

The mechanical properties of rock mass change significantly in water pressure , and causing coal-rock mass deformation and instability, then leading to significant engineering accident. Based on hydraulic damage experiment to explore the mechanical process that water pressure prompted crack propagation,...

The specifications for drainage design of highways (jtj/t d33-2012), issued by the ministry of transport of the people’s republic of china, has been implemented for completed three years. compared with the last edition, 1997’s, the 2012 edition is featured for the specifications of drainage design in...

Based on the analysis of structure and working principle of the vortex microbubble generator, the generator’s prototype is made and the experiment system is established by us. Under different working conditions the experimental researches on the performance have been done. A better working condition...

With the rapid economic development, landscape architectural design also ushered in the development boom, as China entered the aging society development stage, part of the design began to realize humanistic care landscape architectural design ignored the aging background, from the people-centered design...

Bubble pump was proposed to replace the traditional mechanical solution pump in the lithium bromide absorption chiller, for its advantageous feature that can be driven by industrial waste heat or solar energy or other low-grade energy. It is found that different flow patterns in ascending pipe have large...

With the gradual depletion of natural resources, sustainable energy shortage and environmental pollution worsening. The green new building materials have gradually tended to be less or less natural resources and develop in the direction of energy conservation and pollution in the production process[1]....

This paper presents the intrinsic fluorescence characteristics of vitamin B1 and vitamin B2 with 3D fluorescence Spectrophotometer. Three strong fluorescence areas of vitamin B2 locate at ex/ em=270/525nm, 370/525nm and 450/525nm and one fluorescence areas of vitamin B1 locates at ex/ em=370/460nm were...

Finished product wood veneer hanging installation method is a kind of metho to using metal keel and hang on the wall to install finished product wood veneer, it leaves out the base plate of the conventional method in the construction, also can realize the replacement of thin veneer on the surface, and...

For the non-linear relationships of main influence factors of slurry pipeline safety status and the confusable problem of slurry pipeline safety status, this paper used the cross validation method to select the optimum parameters of the kernel function and combined the support vector machine to diagnose...

At present, the rapid development of science and technology to improve people's quality of life requirements, the traditional home to smart home development has become an inevitable trend. But the development of smart home in the country compared to abroad, or far less. In the production and manufacturing...

In recent years, the national renewable energy industry policies and incentives, Liaoning wind power has developed rapidly. However, the Liaoning Province endogenous wind power grid connected capacity increases year by year, squeezing annual utilization rate of the thermal power unit in the province....

Trend prediction is an attractive topic, because determining the buy and sell points is one of the most important issues for investors in the stock market. The main purpose of this paper is to find an effective mechanism to identify the buy and sell signals. Based on the principle of pattern recognition,...

We discuss the key technology of smart power, analyze the technological features of big data technology and the column type database and present the basic computing architecture that fit for OLAP and OLTP hybrid mode. We provide an architecture solution based on the x86 server and open source components...

With the popularity of electric vehicles, electric vehicles charging station its facilities in the near future will also usher in a lot of construction. A large number of electric vehicle charging stations connected to the grid, will have a major impact on the power grid, voltage and current. In order...

There are some defects in the typical SDN network with centralized control. When the network structure is very complex, there are a lot of switches in the network, and the data processing pressure of the SDN controller is very high. In order to solve this problem, a multi-domains SDN topology are designed....

In this paper, the principle of entropy method is studied, and the entropy method is adjusted. Based on the adjusted entropy weighting method, this paper explores the fragility of the banking system of China from the end of first quarter of 2011 to the end of the third quarter of 2016. The article found...

The transmission of marking data nowadays require a separate PC as a client at the receiving terminal in laser marking technology.This paper presents a new data receiving and state feedback solution. It is the industrial Ethernet that based on the composition of embedded network technology.The scheme...

Hydraulic Component Design hydraulic components design library offered by AMESim was used to simulate the internal structure and working principle of direct operated relief valve. The influence of spring stiffness, spring pre-tightening force, spool weight and damping hole diameter on direct operated...

In this paper, a kind of rotary and building ridge combined work machine was designed and manufactured on a rice paddy production. The tractor was used and land rotary tillage and ridging were completed at the same time. It mainly consists of the traction frame, machine frame, gearing parts, rotary parts,...

The application prospect and development trend of interior ecological landscape ecological interior landscape is a special part of the emerging landscape design in modern residential environment is the development and new life reflect. With the further deepening understanding of urban ecological environment...

Water shortage and irrational allocation have restricted the economic and social development of Jing-Jin-Ji region. 70 percent of water is used for agriculture, while virtual water of agriculture come up to 1854×108m3 which is ten times of the annual water consumption of this area. According to the principle...

As the fourth basic passive component, memristor has attracted more attention in recent years. The memristor can be divided into charge-controlled and flux-controlled types. In this paper, properties of quadratic flux-controlled and charge-controlled memristor are investigated. The v-i characteristics...

This paper designs a new intelligent system for watering flowers based on internet of things (IOT), which is suitable for indoor, balcony and courtyard, etc. When the flowers are neglected in long-term, intelligent device for watering flowers can do the watering operation timely and quantitatively. This...

In order to solve the problems that the network security defense measures are independent, passive and lagging, and anomaly detection needs an effective training set, a scalable dynamic compound virtual network framework and strategy for active defense is designed and realized in this paper, a classification...

Fluoride pollution in natural water may create severe threats for human health. In this study, lanthanum modified attapulgite (La-ATP) was synthesized and used as a novel adsorbent for removal of fluoride in aqueous solution.Characterized results showed that the mass content of Lanthanum oxide was 3.30%....

In this paper, we got the aircraft soft landing trajectory model based on the dynamic model, at the same time, regard saving energy and reducing the economic costs as the main purpose, respectively, we gave the corresponding optimal control strategy for each orbit phase.

With the rapid social and economic development, people's living standards and quality has been significantly improved, the requirements of clothing has also improved for the modern society, the clothing is not only used to cover the body or a means of cold, it is also an important tool to show temperament,...

Human-driven eutrophication has caused great changes of phytoplankton community in many China lakes. As a result, the functioning of these lake ecosystems is threatened. In this research, field investigations and sampling were carried out in June 2011 and 2012 in Lake Qixinghu, a coal mining subsidence...

Lining crack is a primary disease in water conveyance tunnel engineering, and accurate analysis of the stability of lining structure with cracks is critical. Based on the theory of fracture mechanics, the contact model has been used to simulate the contact friction effect of crack surfaces. Combined...

In this paper, the physical similarity theory and simulation method is based, through a coal mined zones similar simulation experiments obtained goaf under varying ventilation rate and different experimental conditions of high temperature and closed and so the distribution of methane concentration, and...

We analyze characteristics of electric vehicles interaction network and present a big data analysis method for electric vehicles operations, which is based on cloud computing model. For the electric vehicles large-scale operations, we propose a scalable architecture design as well as the method to improve...

With the power system, deeply urgent need to establish an efficient regulatory system reform cost and risk control, improve the efficiency of the electric power industry. This article explores the mechanism design theory and its application in electricity regulation, in-depth, systematic study of the...

In this paper, numerical simulation was made to analyze and optimize the important factors of CdS/p-Si heterojunction solar cell, which include work function of TCO layers and back surface field (BSF), thickness of CdS thin film and silicon substrate. The results of simulation indicated that the TCO...

With the growing shortage of energy, the requirement of environmental protection is constantly improving, and distributed generation is increasing in the grid. The increase of permeability of distributed power will affect the electricity reliability, which affects customer outage costs. This paper introduces...

Aviation ad-hoc network with the characteristics of large scale, high dynamics and the small node density, there are many problems exist in the high-speed mobile environment. The link constituted between high speed airplanes has a certain particularity. Consequently, the aviation ad-hoc network protocol...

In the paper, the antiaircraft missile is assumed as the researched object, and its inefficient factors and storage reliability is focused to be analyzed. The weaknesses of storage of the antiaircraft missile could be confirmed with its inefficient factors analysis of storage, reliability analysis of...

Service composition, which can realize the added value of service, is the core to implement service oriented manufacturing system. The paper mainly studies the method of abstract service aggregation based on composable correlation drove by the user’s service request. First, the several related definitions...

Plane constitution principle can be applied in the design of city square, different Plaza has different properties, which determine the landscape of city square design scale and design style, the square of the scale and design style, but also directly affect the ground paving material, shape and color...

This paper presents a new formal modeling framework for reconfigurable control. The main idea is to use the STRIPS (STanford Research Institute Problem Solver), a formal language for automated planning which can integrate the cause-effect knowledge and the automated reasoning mechanism into one model....

Nowadays, the rapid development of UAVS has a great application prospect both in military and civilian areas. However, the short duration of the UAV has limited the continuity of its work , and it need someone to replace the battery. We propose a UAV autonomous charging method of the multi-information...

According to the principle of "uniform standard, uniform process, uniform platform, uniform configuration", abide by the State Grid Corporation SG-ERP technical architecture, the big data technology is applied to the area of State Grid corporation human resources management Overstaffing & Understaffing...

The research of potato surface defect detection has an important signification on nondestructive detection and automation grading of potato. This paper summarizes the primary researches on potato surface defect detection by machine vision at home and abroad, and, based on clear and concise logical frame,...

Rolling force model was developed in which the contact arc surface was adopted as slipping and stagnant friction. The positions of neutral plane, forward and backward slipping zone, and stagnant zone were computed with improved genetic algorithm. Rolling forces of hot strip were simulated, which agreed...

To solve the problem of efficient reasoning and self-learning ability in expert system containing production representation knowledge, paper proposed an approach, sort-selection algorithm, to optimize the process of sort and, updated the confidence of all the knowledge according to frequency of the selection...

This paper aims at realizing a soft landing of Chang' e 3 in a predetermined region on the moon. In line with the principle of low cost and business-friendly. It according to the scheduled landing point and combines with the actual operation of the Chang' e 3’s track to put forward the scheme of ‘safe...

In this paper brilliant green (BG) was decolorized by electrochemical oxidation. Kinetics and Intermediates were also studied. The results showed that the decolorization of BG by electrochemical oxidation was fitted to pseudo first-order reactions. Activation energy was 34.9 kJ/mol. HPLC –MS results...

The 2180 mm tandem cold rolling mill is one of the widest cold mills in the world, and it improves the output and production efficiency largely, but some problems puzzle the production such as shape problems of strip, especially the limit width specification. In order to solve the problems, it is necessary...

As the amount of networking information production keeps growing, big data analysis has been widely used in the field of education. In recent years, teacher-student interactions on the Web are increasing, this will generate a lot of data. The use of big data analysis methods to analyze these data has...

With the increasing of wind generators and the scale of wind farm, it is urgent needed to establish a model which is proper and practical to short circuit current calculation. Firstly, this article analyzed the characteristics different types of wind generators’ short-circuit current and put forward...

Based on the properties of Gaussian curvature connection and the theory of differential geometry, a sufficient condition for Gaussian curvature connection between two adjacent Bézier surfaces is obtained. Next, a new method called Gaussian curvature connection is put forward by using the condition. The...

Based on Electromagnetic projection theory, this paper presents an Electromagnetic bidirectional weft insertion mechanism, and establish its electromagnetism and kinetic model. Based on classical vector Electromagnetic force density model, established projectile - Electromagnetic force mechanical model....

It would create great economic benefits if the operation of a power system be optimized due to large amount of input and output, so is has become one of the most important topics for electrical utilities. Among various problems in optimal operation of power system, power flow analysis is a fundamental...

Since the born of the photonic crystal fiber, because of the excellent characteristics which is superior to the traditional fiber, it has become research hotspots in the field of optical fiber communication, optical sensing and optical devices in recent years. However, the loss of fiber has been restricting...

In this paper, the existence of our country city of Roof garden landscape design problems are discussed through the analysis of plant, configuration principle in designing Roof garden, expounds the Countermeasures of plant configuration of modern city landscape design of the Roof garden, has the instruction...

Porosity is the ratio of the volume of the medium pores to the total volume.As an important indicator of the physical properties of porous rock and soil medium,It is directly related to the physical and mechanical properties of the rock and soil in the environment, and the permeability characteristics...

Wooden handicrafts are more and more loved by the people in the contemporary, and are introduced into foreign markets as a representative of Chinese culture, caused a big sensation and became the material carrier conveying the Chinese traditional culture. In modern society, exploring and analyzing its...

To solve the difficult problem for the removal of large size sacrificial layers when preparing a terahertz coupler, a new approach is proposed using poly two methyl silicone as a sacrificial layer. Due to its hydrophobicity and high elasticity, cross-linked polydimethylsiloxane (PDMS) can be gently withdrawn...

FPGA is a high-precision logic device with fast running speed, rich internal resources and reconfigurable strength.This paper puts forward some new ideas for realizing high performance ultrasonic ranging system.This paper investigates the high precision and real-time ultrasonic ranging technology, and...

For the flow control over a backward-facing step, two types of right-angle-shaped plasma actuators are specially designed with the electrodes connected in series and parallel manner, respectively. And this paper deals with the special design electrodes for avoiding the limited effects from the interaction...

The Internet will produce large amounts of information every day. How to effectively manage the information resources has become the key to improve the level of network application. Search engine is a software system applied in the web, which is an important tool for retrieving network information. It...

The characteristics of energy consumption and exhaust air of different types of buildings is introduced. The advantages and disadvantages of various heat recovery methods are discussed. According to the characteristics of different types of buildings, the scheme of exhaust heat recovery is determined.

In order to solve the communication problems involved in acquisition system based on CompactRIO. Analysing data collection from FPGA terminal to RT terminal and elaborate RT terminal and PC terminal communication method. Comparing the merits of the single point polling acquisition model and collection...

This paper presents a formal framework for reconfigurable control, based on model checking. This framework first generates a flexible model (i.e., an execution structure) according to the diagnosis, then defines a temporal specification language to deal with the problems due to infinite execution cycles...

The most important part of the hydraulic design part in turbodrill is stator and rotor blades. The hydraulic performance determines the output characteristics of the turbodrill. SolidWorks three-dimensional (3D) modeling is applied to 127 turbodrill blades. Simulation analysis is using the Software ANSYS/CFD...

Aimed at the distinguishing features, namely, high salinity, high pH value, unstable water quality and quantity, of the subsiding water from cropland in the Yellow River irrigation area of Ningxia, static adsorption experiments were carried out to remove ammonium nitrogen from the aqueous solution by...

OSM (OpenStreetMap) is a collaborative project to create a free editable map of the world and Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Based on OSM (OpenStreetMap) and Leaflet, a complete off-line map is constructed in this paper and applied to the actual...

A kind of intelligent selling-water management system combined embedded devices and wireless networks is discussed at length in this paper. The system consists of three parts which are water level detecting terminal installed on water dispenser, the server used for summarizing data and scheduling installed...

When emergent active power abscission command is given to wind farm cluster by dispatching center, it is necessary for wind farms to coordinate with each other to optimize power abscission distribution. This paper firstly analyzes active power abscission ways of wind farm, and four kinds of power allocation...

This paper indicates the process of 3D modeling in the building of virtual campus, which focus on the construction of terrain and scene modeling. Then it puts forward the cautions of these modeling processes. Finally, the 3D interaction and spatial analysis are involved.

In the actual process of production, there is a practical situation that multi-level relevance resources such as operators, machines, fixtures and cutters participate in the job-shop operation. Different from traditional production scheduling which focuses on machines, this scheduling problem add constraints...

The design method of the digital phase-locked loop is presented according to the parameters of the center frequency, the loop filter bandwidth, etc. The modules phase detector(PD), loop filter(LF), voltage controlled oscillator(VCO) have the similar behavior with that of the analog phase-locked loop(APLL)...

It is essential to popularize the application of EDC in clinical trials.To provide reference for the standard management of clinical trials and to update pharmaceutical R D industry on electronic data capture( EDC) in drug clinical trials. The advantages and development trends were summarized.The EDC...

Through our observation of the classmates’ behavior when entering or leaving the classroom, we find that it is more probable that they will keep the door close than leave it open when the door is already close. And the larger the number of classmates entering or leaving the classroom per unit time is,...

In order to analyze the validity and scientificity of the traffic rules, we design an intelligent traffic rules analysis system. According to the complexity of traffic flow, we adopt a revised cellular automation to establish corresponding simulation model, in which each vehicle is regarded as a cellular....

EPC process, based on the casting structure, technical requirements, production volume, production conditions determines the casting solution, process planning. In this paper, the author from three aspects , the analysis of die casting process design principles, design principles and infiltration technology,...

The dynamic characteristics of the rotary axis feed system has influence on the contour error. This paper presents a mathematical model of rotary table drive system of the CNC machine tool by using of mechanical dynamics. The model includes the simulation model of AC servo motor and the rotary table...

With the continuous acceleration of our country city changes a course, the environmental problems in the process of modernization in the city is more and more obvious, improve city environment the most effective measure is necessary to the city landscape, provides a good recreation and nature opportunities...