the insulator is a kind of important electric components, because it plays a role in electrical insulation and plays a supporting role in mechanical, power system and even the development of the whole society to a higher degree of dependence on the performance of insulators, the requirements are also...

For the optimization of wind farm layout, the model of fan wake model, fan cost - benefit model and wind farm incremental capacity evaluation model are established in this paper. The simulation of the wake effect of the wind turbine is the basis for the prediction of the generation efficiency of the...

"For a city, the most important thing is not architecture, but planning." Ieoh Ming Pei, a famous Chinese architect, once said. City planning is a comprehensive development tasks and objectives within a certain period. In this paper, we first select 20 indicators ,which conform to the ten principles...

With the consistent growth population and urbanization, the concept of sustainable development will play an more and more indispensable role in city construction. In this paper we set up fuzzy comprehensive evaluation model based on AHP.We begin to choose some indicators to build a metric to measure...

In this paper, we introduce a intelligent temperature control system based on greenhouse. The system include two automatic induction device,which can feel the temperature changes; a solar-thermal heating system with electrical heating auxiliary,that the most important in the system;a tubular lamp for...

This page proposed an intelligent radiator which used MCU AT89S52 as the core, mainly consist of temperature and humidity detection part, main control part, display part, control part. Firstly, collect the temperature and humidity of the environment by using DHT11 temperature and humidity sensors. And...

Ram-compacted piles with vibrating gravel base is a simple method of foundation treatment which was applied to engineering in soft soil areas initially with which soil surrounding can be compacted by the impact of hammer transitted by gravel. Relatively low cost and ordinary construction technique have...

Speech emotion recognition is mainly based on the differences of characteristics between different emotions. The traditional recognition method is based on the manual extracted features, such as MFCC and LPCC, etc., and also achieved well. But it is unclear what kind of feature are able to reflect the...

In order to study the specific pattern of fragmentation penetrating the target plate under the influence of multi factors, this paper uses the artificial neural network method to identify the input parameters and obtain the corresponding target damage model. Based on the orthogonal design principal,...

In the paper, we develop a model of temperature of tub water with energy conservation law. We consider the water in the bathtub at a standstill, continuous injection to the bathtub and an equation of inflow and discharge. Energy conservation law and thermal balance equation are utilized to analysis heat...

With the growing development of the Internet, phishing sites have caused more and more serious harm to people. Perhaps even worse, resulting in irretrievable economic losses to users. Based on the existing research, we propose a model of combining PHA and page noise to solve these problems. We use PHA...

To solve the frequency aging problem of high-precision quartz crystal oscillator has been one of the most written topics in the international frequency control field. Aging prediction is a significant approach to the process of the long-term aging indicator problem. Aiming at the aging issue of the crystal...

The in-wheel-motor drive electric vehicle has the advantages of compact structure, high efficiency and easy controllability. But once all of the unilateral drive systems are failure in the strong driving situation, the vehicle will be transient instability under the additional yaw moment produced by...

To evaluate the quality of an existing structure which is lack of information in the highway bridge after years of shutdown. An evaluation method is proposed, which is based on the fuzzy mathematics and catastrophe theory. Comparing traditional methods, the method avoids determining the uncertain index...

In order to achieve a non-invasive continuous measurement of blood pressure, a method of establishing a nonlinear blood pressure estimation model by BPNN (Back Propagation Neural Network was proposed. By acquiring pulse wave, systolic and diastolic blood pressure value of every heart beat cycle were...

A new type of engine transmission mechanism based on gears and racks is introduced,which is mainly composed of a pair of incomplete gears with overrun clutch, a composite rack and a bevel gear train.With the interval meshing of incomplete gears with composite rack, the reciprocating linear motion of...

A new process was designed for the transesterification of methyl acetate with n-propanol. That is, reactive dividing-wall distillation column technology is used instead of conventional reactive distillation column and methyl acetate - methanol separation column to product n-propyl acetate and methanol....

Focused on the availability of command information system, the availability model of command information system is constructed from capability, business function, application process and application object firstly. Secondly, the availability index of command information system is established in principle....

The paper designs and researches the modular design method of diesel crankshaft based on the research status of the Sach-Merkleisten management technology through analyzing the modular design. On the basis of the crankshaft product and geometry analysis, the crankshaft module division and module creation...

Use computer software for arrangements, we are prepared to use the Matlab software, also known as matrix lab, one for algorithm development, data visualization, data analysis and numerical calculation of senior technical computing language and interactive environment. According to the basic knowledge...

Image restoration easily smears image edge in unsteady area and produces stair effect in steady area. In order to overcome these shortcomings, the paper proposes a half-quadratic energy functional regularization model (EFRM) and structured Newton iterative algorithm. Firstly, for blurred image by system...

At present, a large number of professional diesel databases and systems could support all kinds of unified management and retrieval applications based on the diesel research data, but the actual working environment exists three problems: (1) Data scattered in different databases and not conducive to...

The fundamental purpose of this paper is to present the difference between strategies for extraction of reference compensation currents for harmonic mitigation in a non-linear load. APFs are used to compensate for the harmonic current generated by non-linear loads. These harmonic currents are produced...

Rolling tension control is an important factor to ensure the quality of steel products. In actual production process, there are shortcomings such as large overshoots, long adjustment time and the parameters are difficult to adjust in real time because rolling tension model is a high-order nonlinear system...

This paper uses the ARIMA and BP neural network model to forecast the exchange rate by collecting the monthly exchange rate data of RMB exchange rate from 2001 to 2017, and put forward the combined forecasting method of ARIMA and BP neural network model. From the prediction results, the results of the...

With the advent of the Internet era, the network has been widely used in production and life, and network security has become a hot topic. Nowadays, the traditional prevention technology is difficult to prevent the various increasing network attacks. There is an urgent need for a complex network intrusion...

The image has many features, among which the edge is one of the most basic one. The purpose of edge detection is to obtain accurate edge positioning, which plays a vital role in computer vision and image analysis. Great detection of the image can also effectively suppress the generation of noise. There...

Domestic air conditioners generally use Freon as the refrigerant, which results in serious damages to ozone layer and exacerbates greenhouse effect badly, using water vapor as the refrigerant can avoid the problems above, but there exist series of technical problems in domestic air conditioners using...

This paper presents an analysis aimed to evaluate the noise of micro-CHP systems. Based on the field test of insertion loss, the spectrum characteristics of CHP before and after the heat exchanger were analyzed. Finally the main source of noise is estimated, and the influence of speed and heat exchanger...

The Zn1-xCoxO powders were synthesized by solid-state reaction at different annealing time and annealing atmosphere. The effects of annealing time and annealing atmosphere on the structure, morphologies and infrared emissivities have been investigated by X-ray diffraction (XRD), scanning electron microscopy...

A series of binary mixtures of adipic acid (AA) and erythritol (Ery) were prepared and the thermal properties were investigated in this study. The results showed that a eutectic mixture was formed when the mass ratio of adipic acid and erythritol reached 1:7. The eutectic mixture displayed a melting...

This paper studied micro Combined Heat and Power(CHP) system. Generating and waste heat recovery system based on gas engine are set up. Generation and waste heat recovery effects are tested and the results indicate that the system is practicable. Generating efficiency increases as the load rise, while...

It is extremely significant to precisely control exit temperature of heat exchanger in industrial production. However, traditional control strategy has a great deficiency to be applied to temperature control system which is nonlinear, large inertia, pure delay and variant parameters. Smith predictor...

With the development of smart distribution grid, metering devices for low voltage distribution network is getting better and better, which lays the foundation for the accurate calculation of theoretical line loss. Firstly, this article points out existing problem of commonly used calculation methods--equivalent...

The fracture toughness of No.45 steel before and after corrosion is studied in this paper.Two experiments have been carried out about hardness experiment and COD experiment before and after corrosion. And the influence of corrosion condition of the hardness increment and fracture toughness is analyzed...

The numerical simulation of the hydrostatic bearing of the fluctuating load is carried out by Ansys cfx. The variation law of the oil film thickness with the load is obtained and compared with the static formula. It reveals the influence of periodic variation of the load displacement interface table....

Ni-TiN nanocoatings were successfully synthesized on the surface of 45 steel substrates by using ultrasonic-electrodeposition method. The plating parameters for preparing Ni-TiN nanocoatings were optimized by using an artificial neural network (ANN) basing on the orthogonal test. And the morphologies...

An algorithm for dynamic reliability analysis of a stochastic structure is proposed based on the theory of Neural Network Response Surface Method. On the basis of First Excursion Failure Criterion of random vibration, the performance function of dynamic reliability is established. Sequential Surface...

A UV curable complex system with vinyl resin and polyurethane acrylate photo-polymerization was investigated. The UV curing process of complex system was traced by IR. Thermal decomposition temperature of UV cured film for various system were determined by thermogravimetric analysis(TGA). And physical...

Cell adhesion to cells or substrates is the basis for cell colonization and survival. Based on atomic force microscope (AFM), a single probe was used to quantitatively measure the adhesion of different cell types. The self-made pneumatic control system produces negative pressure to fix the cells, replacing...

Change in soluble sugar and organic acids of dragon fruit wine during fermentation by reversed phase high performance liquid chromatography (RP-HPLC); Organic acids chromatographic conditions: chromatographic column BP-OA, mobile phase A(1% H3PO4) and B (UPW), column temperature 35°C , the flow rate...

Hospital information system(HIS) has been considered as one of the most important branch of the Medical Informatics by international academia community, with the essence of integrating all the hospital departments into a large information network to make the make the whole hospital system run better....

Objective: To register, classify, evaluate and monitor occupational exposure of the medical staff timely and accurately, improve the efficiency of the occupational exposure declaration and monitoring, so as to minimize the incidence and injury of occupational exposure and guarantee the safety and occupational...

Serial port is an ancient hardware port but difficult to be replaced. There are still many special devices in the use of it. However, In the Microsoft Windows, the serial port programming is becoming increasingly difficult. This article not only describes the Serial-Socket Bridge software structure of...

Hidden Markov model has been widely applied in various fields and has obtained excellent effects. In this paper, we verify the feasibility of applying HMM to quantitative finance and the potential to obtain stable profits and detect coming bear market to avoid sharp falling process. We creatively make...

Platform of MATLAB Simulink module is used to establish hydrofoil USV of the intelligent propulsion system simulation model of the chaos optimization program. Using the program to optimize the parameters of the hydrofoil USV propulsion system can significantly improve propulsive performance. The reliability...

With the development of the stage lighting industry and pattern recognition, the stage lighting console can learn from the algorithms in the field of pattern recognition to make it more powerful and more flexible. In this paper, the BP neural network is summarized as a carrier, and the BP neural network...

For on-orbit servicing of large valuable satellite, docking ring is a typical and strong component, which is fit for grasping by a space robot manipulator. In this paper, a novel method for measuring the relative pose of partial docking ring is proposed by introducing double-line structured light. Firstly,...

With the development of science and technology, for the corresponding "Internet plus" agriculture, this paper puts forward based on streaming media technology "agricultural information service platform" design, introduces the design and implementation of agricultural information service platform of the...

For enhancing the accuracy and rationality of power quality (PQ) evaluation, close value method (CVM) based on the target optimization principle is introduced to symbolize the performance of PQ samples. To tackle with the defect, in calculating close value of PQ samples, that the calculation formula...

With the emerging power system files, new energy development and widespread application of new technologies, new materials, new equipment, distribution network design are facing profound change. Paper around new situation Xia power system development mode, to achieved distributed power, and electric,...

We applied the definition and structural model of environmental dynamic value of substance in marine bay and the variables including basic background value, environmental background value, input value and environmental dynamic value in analyzing the change process and change trend of Cd in Jiaozhou Bay,...

The metrological performance of flow meter should be tested under the condition of ambient temperature and humidity changes according to appendix A type evaluation outline of JJG 1033-2007 "Electromagnetic Flowmeter" verification procedures. In order to meet the requirements of the type of evaluation...

A new trajectory tracking controller for a wheeled mobile robot based on back-stepping and Lyapunov approach is presented. The proposed controller is developed based on the kinematic model and dynamics model of wheeled mobile robot. Firstly, the kinematic controller is designed by using back-stepping...

The internet is facing many crises and difficulties in the rapid development period. More and more people begin to pay attention to the problem of network security. The most effective strategy is to use data encryption technology to protect the safety of the network. Data encryption technology is divided...

In order to realize network for instrumentation without network interface, current instrumentation's network was studied. It adopted AODV routing protocol in wireless Mesh network and designed multiple-interface instrumentation network agent, which could connect network and control terminal interconnection....

Precisely making a judgment after a chemical weapon attack in the battlefield on its hazardous effects is the fundamental work in order to perform a safe and whole chemical defense in the army. In this article, the author has conducted a throughout analysis on its antipersonnel effect, delaying effect...

One catalytic discoloring spectrophotometry with double indicators and dual wavelength is proposed in the Thesis to measure the content of trace iron in three kinds of hematinic, artemisia integrifolia and other vegetables. In HCI medium, methyl orange and methylene blue are indicators. At wavelength...

With the rapid growth of logistics, it is important to gain further insight into the strategic benefits of logistics services. The study examines the current situation of Korean domestic 3PLPs. Based on the discussed background, the study analyses Korean domestic 3PLPs from four aspects (strengths, weakness,...

The inverter is a significant part in the single phase grid-connected inverter system. The design of control strategy for photovoltaic power generation system has a decisive role in the system. The fractional order controller is applied to the grid-connected inverter to improve the single phase photovoltaic...

Smart grid components are free and secure for exchanging data that requires a good data communication network to support, the next generation of Internet technology applications become an inevitable trend. Internet Protocol Version 6 as the core of the next generation of Internet construction, with its...

Wide-area power system reliability research contained within the substation and transformer substation network communication between the wide area communication network reliability research. Substation is the basic component of power wan system based on the substation building local area network is a...

The basic law and method of Fourier transformation and Hilbert Huang transformation is introduced. Taking the obtained dynamic EEG data under +Gz acceleration as an example, EEG change feature under +Gz acceleration is analyzed ,and Fourier transformation spectrum graph and Hilbert Huang transformation...

Large displays are weak in providing sufficient access efficiency and input precision in gestural interaction. In particular, in multi-user situations when equal access efficiency and high precision are required, the weak of large displays becomes more obstructive. In order to address access efficiency...

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...

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...

This paper analyzed the content, pollution level and distribution Cd in Jiaozhou Bay based on the investigation data in May, August and November 1979. Results showed that the contents of Cd were 0.01-0.09 g L-1, and were confirm to Grade I in according to National Standard of China for Seawater Quality...

This paper established the application level evaluation index system of agricultural IoT (Internet of Things) in the whole industrial chain of agriculture by means of the application of agricultural IoT in agricultural production, agricultural circulation, agricultural service and agricultural management....

Acanthus ilicifolius L is a kind of pantropical mangrove plant. It is cold-natured and bland. The whole plant is officinal. According to recent studies, Acanthus ilicifolius L has a variety of pharmaceutical function, such as hepatoprotective effect, antioxidant, anti-tumor effect and insecticidal effect....

This paper is aiming at the submarine detecting fan sector dynamic calculation problem of anti-submarine helicopters using dipping sonar search. Helicopters hovering point coordinate solution model is established based on search method. The equivalent method is adopted to calculate submarine alert area...

A double-incident angle measurement technique based on the Surface Plasmon Resonance (SPR) is described and experimentally demonstrated to measure the refraction index change of glucose versus the temperature in this paper. The angle scan SPR structure with parallel optical path is set up to carry out...

Thin polystyrene film has shown anomalous properties such as reduced glass transition temperature when the thickness is below 100 nm. However, few attentions have been paid to its mechanical properties, which are important in understanding the stability and reliability of polymer nano-structures. In...

The data mining methodology for identification and detection of bugs is an important application. Especially separating bugs from non-bugs is a general challenge. When software developers classify bug reports, they may misclassify bug reports with bias and errors. All issue reports are analyzed by combining...

Cloud computing has many advantages such as on-demand service, high extendibility, universality, low cost and virtualization, and so on, which is widely promoted and applied in each industry of the society. However, the development of cloud computing is also faced with many risks and challenges, among...

This paper forecasted VaR for multi-market assets (serval kinds of energy assets, stock, gold and US Dollars) by using Vine-copula model. The findings of the research showed that the Vine Copula model displayed more flexibilities and efficiencies than the traditional Bivariate Copula model in characterizing...

While the management and development of water resources requires continuous establishment and improvement of the property system of water resource assets, a premise of such establishment and improvement requires a comprehensive understanding of water rights. What kind of right is water right What is...

With the rapid development of modern aviation industry, the air traffic is becoming more and more advanced, modern communications technologies are required to ensure aviation safety and the efficiency of navigation. The concept of aeronautical Ad Hoc network have been proposed on these requirements,...

Synchronization of multi-coupled dynamical networks has received considerable attention recently. However, it is often difficult to estimate the coupling coefficients since we cannot get the exact boundaries of the variables for most chaotic systems. In this paper the network consisting of N (N 3) coupled...

Targeting at the human target detection in infrared sequence images, the extraction method of feature region based on feature points is adopted. The depth-learning algorithm is firstly used to extract the feature points rapidly. Based on the feature points extracted by matrix double transformation, LBP...

In order to understand the different detection time of stone radioactive detection results impact, this paper for the three groups of stone sample take the different detection time radioactivity survey, and the detection results are analyzed. The best time of radioactive detection of the proposed stone...

Aiming at the fact that relevant conductivity of corrosion resistant aluminum conductor already used in the transmission line currently is reduced when the corrosion resistance is increased, the approach of "conduction equilibrium of rare earth and corrosion resistant alloy" is proposed that cerium-rich...

Recycling of waste heat with heat pipe is one recognized effective approach to save energy and prevent global warming. Energy saving and efficiency enhancement of heat pipe exchanger for residual heat recycling, particularly the conventional heat pipe (CHP), two-phase closed thermosyphon (TPCT) and oscillating...

The traditional way of manual cleaning stairs, not environmental protection, cleaning efficiency and low, cleaning workers time and labor, in order to solve this problem, the design of a low power MSP430 series single chip staircase. The cleaning machine realizes the combination of the triangular roller...

In this paper, the remote monitoring system based on GSM is studied, using AT89S52 microcontroller as the central processing unit, wireless communication using GSM short message. The utility model can realize the function of indoor temperature acquisition, remote lighting control, burglar alarm detector....

Rotating classroom teaching mode is based on abundant teaching resources. This paper is based on the DB2 database management system design. It can provide technical support for the development of teaching resource management system, and to carry out the rotation of classroom teaching mode of service....

Vocabulary is one of the three elements of language, as an important position in English learning. Vocabulary has always been the various stages of English teaching's basic and difficulties. Mobile learning breaks through the time and space constraints of the traditional teaching model. The vocabulary...

A pulse detection system based on Arduino and photoelectric volumetric sensor is designed in this paper.It can detect the pulse quickly and display it in real-time with the Bluetooth.The system has the advantages of high sensitivity, good performance, low power consumption, low cost and high performance...

Cloud computing is a new service model to share resource on the network, and it is the future development trend of applying cloud computing technology in computer laboratory construction. For the problems in laboratory management, this paper analyzed advantages of cloud computing in laboratory construction...

In the highly competitive market environment, after-sales service has become the key for enterprises' survival. In order to solve the problem of difficult management of after-sales service, this paper surrounds framework improvements, system architecture workflows and business functions to construct...

Solving the high order equation to get the complex roots is of great importance for analysis and synthesis of the engineering projects. A few methods, such as the Optimal Trinomial Factor method and the Splitting Trinomial Factor method, can be used to solve these equations. However, these methods may...

English as a language, the most basic function is communication and communication, oral English learning is very important. Students in the school of English learning to should try education is given priority to, "dumb" English become the biggest obstacle to learning English. Using APP mobile client...

In order to test equipment purchase, use and inventory management in an all-round way, this paper based on needs analysis, in accordance with the standard design process research, provide technical support for system development. First of all, the conceptual structure design, using entity relationship...

Constructing scientific and practical teaching material management system, managers can use the network to deal with related work, students and teachers can always check the progress of teaching material period of related work, check the cost of teaching material, contribute to the management of transparency,...

With the development of computer and network technology, athletic meeting management is constantly toward modernization, and in the popular athletic meeting management software, the grouping lane dividing of track events is fixed eight lanes, scheduling algorithm is fixed, and there are some flaws. Therefore,...

A three-dimensional eddy model considering buoyancy was established to simulate vertical buoyant flow from a square orifice in static ambient. The hybrid finite analytic method with stagged grid was used to solve this model. Results showed that axial velocities from a square orifice coincided well with...

Transient performance is an important parameter to measure the performance of electronic current transformer in smart substation , the transient performance of electronic current transformer with analog integrator and digital integrator is analyzed theoretical and simulated, Simulation results show that...

In this paper the methods of chemical co-precipitation method were used to produce nanomaterial of LaAl11O18. In order to find the effects of the preparation parameters on its micoscopic structure and the influences of calcinated temperature , keeping warm time and pH value on organizational structure...

OFDM (Orthogonal Frequency Division Multiplexing) is wireless data transmission of high speed with fast development in recent years and great achievements in practical applications, particularly in the field of wireless communication.

Optimizing and screening signals sent from useful power grid equipment is beneficial for monitoring personnel to judge the fault situations of field equipment more quickly and correctly, therefore, optimizing centralized monitoring signals of power grid is a very important work. In this Paper, monitoring...

With the rapid growth of data volume of the Internet and other platforms, the bandwidth needed for data transmission and reception is getting higher and higher, and the requirements for processing speed and sampling frequency of information acquisition are also improved. Based on the Shannon sampling...