Advances in Intelligent Systems Research

The web data collection is the process of collecting the semi-structured, large-scale and redundant data which include web content, web structure and web usage in the web by the crawler and it is often used for the information extraction, information retrieval, search engine and web data mining. In this...

Condition Based Maintenance (CBM) technology is widely used in high-voltage electrical equipment. However, there are complex links between them, what makes the single decision can not meet the requirements of the actual production. This paper presents an improved method - Fuzzy Analytical Hierarchy Process...

this paper the reduction of Chang'e no.3 soft landing and obstacle avoidance phase are studied. And based on that, there is an orbital control scheme with the aim of consumption the least fuel. In this scheme, the dynamic programming model that aims at consuming the least fuel is set up for the main...

In order to solve the existing high voltage switch gear when the voltage difference method using core phase, due to the different switch gear supporting capacitive sensor indicators are inconsistent, resulting in phase sequence check misjudgment and other issues, this paper uses the phase difference...

In this paper, FLANN(functional link ANN) filter is presented for Gaussian noise. FLANN is a singer layer with expanded input vectors and has lower computational cost than MLP(multilayer perceptron). Three types of functional expansion are discussed. BP(back propagation algorithm) for nonlinear activation...

A type of Automatic Mechanical Transmission (AMT) without clutch and synchronizer for pure electric bus is introduced in this paper. The shift process model of this type of AMT is created, and the factors that affect the shift process are analyzed. Based on this shift process model, the shift control...

At the main transformer for Helping on the 1st pre-test and found that the 1st variant of 66kV side of the A-phase winding DC resistance is too large, and the phase imbalance difference of 7.21%. On all aspects of the test wiring, testing and other parts were examined and treated, the test data did not...

Since direct fault arc current is lower than the normal current value, it cannot be discovered by over-current protection; On the other hand, the arc is so dangerous. Therefore, it's imperative to research on direct current (DC) arc. In this paper, with a large number of current data through experiments...

When the Hessian matrix is not positive, the Newton direction maybe not the descending direction. A new method named eigenvalue decomposition based modified Newton algorithm is presented, which first takes eigenvalue decomposition on the Hessian matrix, then replaces the negative eigenvalues with their...

Electric power industry standard DL/T911 2004 Frequency Response Analysis Method of Power Transformer Winding Deformation, it is definition of winding deformation Under the action of mechanical force or electric force, the power transformer windings axial or radial size changes, usually it characterized...

the situation is grim for domestic civil electrical fire and arc fault is the main cause of electrical fires. Low-voltage arc fault protection technology in China is still in infancy, and has not yet established a complete low-voltage arc fault database and the arc fault protection system is not perfect...

This paper proposed a beamlet-based method of extraction from pavement crack images. Fitstly, we transfer the collected pavement crack images to the binary images using Otsu's thresholding segmentation algorithm, then the beamlet transform was exploited to extract the linear features of cracks from the...

EAST (Experimental Advanced Superconducting Tokamak), a National Mage-project of Science Research of China, is a very important fusion experiment facility. The ability of magnetic confinement to plasma can be improved by elongating plasma cross-section to form divertor configuration in EAST. But elongated...

Through several examples, describes the harmonic distribution network and its equipment hazards. Harmonics can cause distribution transformers demonstration power loss and additional loss increases, resulting in reduced aging transformer oil and insulation properties, triggering a distribution transformer...

It is important to analyze rotor current quantitatively for doubly fed induction generator(DFIG) initiated by terminal voltage dip for planning and configuration of relay protection of wind farms and grid including wind farms. The previous studies assumpt that the instantaneous activation of crowbar...

BP neural network is applied on fault diagnosis of automobile engine in this study. Actually tested fault samples of unstable idle speed are used to train network. The results of tests prove that applying BP neural network on fault diagnosis of automobile engine is quite efficient. This method has high...

This paper describes the design and implementation of an ARM based embedded operating system micro kernel developed on Linux platform with GNU tool chain in technical details, including the three-layer architecture of the kernel (boot layer, core layer and task layer), multi-task schedule (priority for...

Transformer DC resistance test is one of the routine test in the transformer core project, but the test efficiency is generally low.The paper ,through the analysis of transient process of large DC resistance measurement of transformer coil, core hysteresis phenomenon and the influence of residual magnetism...

Objective: To detect the anti-inflammatory action of magnetic targeted triptolide nano-particles on adjuvant arthritis (AA) rats and the levels of interleukin-6 (IL-6), tumor necrosis factor (TNF ) and interleu-kin-10 (IL-10) in serum and synovial fluid, in order to investigate the possible therapeutic...

The 3/3 Phase Double-winding Induction Generator is designed for the high speed of the primal rotor. It is 2500 commutating asynchronous generator. An exciting winding is designed in the stator, and the control scheme is implemented by a static exciting device. In this paper the circuit principle is...

Capon beamforming has better resolution and interference rejection capability. However, its performance will seriously degrade due to noise, array steering vector error, and other factors. In this paper, a robust Capon beamforming applied to a planar array is described. It is shown that the proposed...

This article illustrates the characteristics and proportion of GIS system failure through the introduction to GIS system structure and characteristics; In order to make the GIS in the safe operation of the power system, It is necessary to test AC withstand voltage at the scene.

Modern automotive electronic control technology is the integration of electronic technology and automotive mechatronics. It is increasingly widely used in the car. Application and development of electronic technology and electronic car will drive into a new era, not only in the 21st century car traveling...

Passenger and freight train scheduling problem on double-track railway line is considered by using Ant Colony Optimization (ACO) algorithm. The aim is to reasonably arrange the dispatch sequence of the trains to minimize the total run time. The constrains in train scheduling problem are considered and...

Based on the principle of IVI, IVI-MSS and IVI-Signal, this paper has proposed a conception of function interface based on COM technology, and introduced its designing and model structure. Networked ATS was designed and implemented based on function interface and the design thinking of COM and module.

Isolation switch of the high voltage alternating current usually emerge some faults, as the suffered losses of electrical power system is increasing, people will begin to pay attention to the fault problems of isolation switch. Through knowing the basic performance of isolation switch, people give some...

With the gradual improvement of health concepts, people increasingly pay attention to their own health problems, more and more people want to be able to keep abreast of their own health. Small footprint, simple operation, easy control makes treadmill become the most common indoor fitness equipment. This...

With the development of Internet, Network public opinion has been serving an import role in reflection of social public opinion. As there are a large number of websites and forums on the Internet, we need a powerful crawler system which can meet the demands of opinion mining. However, common crawler...

A novel video object segmentation method combines change detection and edge detection is proposed here. The process of the algorithm can be divided into three parts: motion detection, spatial segmentation and temporal-spatial filter, which integrates the spatial and temporal information of the video...

The passive direction finding cross localization has got great achievement and has been widely used in military and civilian fields. Currently, the researches on passive localization have focused on AOA, TDOA and FDOA. In our system, the passive direction finding cross localization is more effective...

Hybrid electric vehicle is the car which increase a electric drive system on the traditional internal combustion engine vehicle. The coordination work based on the drive motor and the internal combustion engine can reduce fuel consumption and CO2 emission. Considering on the special characteristics and...

With the innovation of computer technology, computer application technology was used more widely in the enterprise. Computer application technology in the enterprise offers a variety of convenient services for enterprise production and management efficiency for different groups of people. In this paper,...

Considering high false alarm probability of BIT and oversize of off-line ATE, the paper studies and designs an online automatic test system. The interface signals of radar line replaceable units (LRU) on working condition are leaded out by three-port conversion card and conditioned with insulation technology,...

The large wireless sensor networks are often structured hierarchically by grouping nodes into different domains in order to deal with the scaling problem. This paper proposes a new protocol called hierarchical QoS routing protocol (HQRP) that achieves scalability by organizing the network as a hierarchy...

As the main supporting equipment of the fully mechanized coal system, hydraulic bracket bears complex alternating load. The fatigue failure of welded structure as the main part of hydraulic bracket often occurs. In this paper, based on the welded structure of hydraulic bracket, the design methods and...

With the development of science and technology, there has been growing the grid size, the growing demand for electricity and the extent of increasing the electricity market. In this paper, a mathematical morphology and genetic algorithm based dynamic reactive power optimization method for distribution...

In order to achieve the reconstruction of distribution network, the partition method and the parallel tabu search algorithm were introduced. Distribution network was simplified as ring network which only contained branch-groups, and the necessary conditions for the reconstruction of the distribution...

It is well known that a semi-group’s action on a space could appear chaos phenomenon, like Li-York chaos and so on. Li-York chaos has important relations with topological transitivity and periodic point. This study analyzed metric space(X,d) and it’s dinduced Hausdorff metric space(k(X),H) . Let T is...

Aiming at the existence of shear machine hydraulic brake disc friction pair wear quantity, temperature overrun problems couldn't be measured online, research and develop an online intelligent test system, test the temperature of friction pair and wear of hydraulic brake. This paper introduces the structure...

To solve the problems regarding the construction technology of 360° large spiral staircase and improve the quality of framework supports, the frequency for common failings for the quality of spiral staircase decreases from 14% to 5% according to the spiral curve equation and by applying CAD software...

On account of the regional balance requirements of reactive power, this paper proposes automatic adjustment method based on reactive power distribution factor for the trend. In this paper, the equivalent impedance of the -type equivalent circuit is as the electrical distance to strike the reactive power...

The paper researches the parametric inversion of the two-dimensional ellipse equation by means of non-linear optimization method, draw a Numerical Solution for such inverse problem. It is shown by numerical simulations that the method is feasible and effective.

The direct CVD-spun multi-membrane carbon nanotube yarn is mechanically twisted to engineer its structures and to enhance its mechanical properties. Homogenously twisted CNT yarns with a dense cross-section are achieved with different degrees of twisting. The mechanical twisting remarkably increases...

Cloud computing is an Internet-based super-computing model and it is also an innovative business computing model. This paper describes the definition and characteristics of cloud computing, analyzes the key technologies of cloud computing, and makes an in-depth study of cloud computing applications in...

Cross-layer design of routing protocol for mobile ad hoc networks (MANETs) has become a hot research topic in recent years. By integrating physical layer, MAC layer and network layer together for cross-layer design, a cross-layer routing protocol called MIR is proposed in this paper. Via predicting the...

With expanding scale of modern power system and cross-region connection of power grid, the system often run closer to the ultimate state. So the security and stability problems become a focus of power system. This paper proposes an accurate regional-equivalent-system model, and the transient energy function...

The method which adopts start-end device to measure the velocity is in com- mon a method of measuring the velocity. The characteristics of this method is in brief the equipments need, operation convenience, test result credibility, measuring the error margin small. It not only can measure the velocity...

The multipath fading and interference problems in the wireless communication lead to the link quality decrease severely. However, the conventional frequency hopping scheme cannot solve the problems in an effective way. Adaptive frequency hopping scheme, which is based on the automatically link quality...

Cement concrete airport pavement frequently damaged in fatigue failure caused under the effect of reciprocating wheel pressure. Repair effect by traditional materials were not effective.In this study, which fiber PVA were used as a reinforcing material, the PVA - ECC airport pavement were tested on test...

Handwritten digit recognition is of great value for application in the field of Image Processing and Pattern Recognition. For ensuring better recognition accuracy and speeding up classification process, this paper proposes a fast handwritten digit recognition method based on improved SVM. The new method...

To take account of the fact for an automotive hydraulic power steering system have serious energy loss, this paper discusses the configuration and the action principle of a new variable displacement of double-action vane pump, which consists of a floating block and rate compensation characteristics....

Many optimizations have been done to 3DR-tree index structure and many opinions have been proposed. Modification by splitting mechanism is one of them. There are two index trees in 3DR-tree index structure after modification: one is a history tree for past data storage and the other is an active tree...

This article is devoted of changes of mechanical properties of hot rolled steel as a result of a reducing of rigidity of the rolling stands. From the analysis of studies of hot rolled steel statistically it is shown that as a result of reconstruction the change of stiffness of working stands of rolling...

With a focus on complex environments, the present paper describes a new algorithm in scale changed object tracking through color feature. Mean shift (MS) iterative procedure is the best color-based algorithm to find the location of an object. The algorithm performance is not acceptable once tracking...

Developed from art, computer digital color is a new subject integrating computer technology, graphics and color science, as well as an open system which is not limited in the a certain field. In artistic design field, color model, color domain and color application rely on the five-grade color table...

The heterogeneity of information in multi-sensor systems in power system makes information fusion process more difficult, and results in divarication of information fusion. Aiming at this problem, this paper presents an automatic information fusion framework. The main contribution is the method of semantic...

This paper reports on dynamic characteristics of a cable-towed acoustic array system during ship’s loop turning maneuvers with a lumped parameter model. The transient behavior of the towed sonar array given rise to the tow-ship’s loop maneuvers with different towing speeds, tuning radii, and current...

This paper introduces the design method of face recognition system is a kind of BP neural network. This design uses the forward backward propagation algorithm of multi-layer neural network, BP algorithm, BP neural network for face recognition was built by using MATLAB software, and the use of facial...

In order to improve the kill efficiency of the fighter aircraft under the complex electromagnetic environment, the anti-interference capability of all kinds of dogfight weapon is analyzed, a method of the double dogfight weapon fusillade is adopted to improve the kill capability of fighter aircraft....

Many countries are conducting research on the live-line maintenance robots. Trajectory plan of the manipulator is introduced. Propose a method of trajectory plan. Using Cubic polynomial interpolation algorithm, the joint angle solved by inverse solution can be determined by plan_ algorithm, and the plan...

For reducing the communication overhead of data aggregation, authors proposed an inner-cluster data aggre- gation scheme for wireless sensor networks. Agent nodes are selected with assist of location information and only the nodes have different readings with agent nodes transmit their data to cluster...

In this paper, a modified natural boundary element method (MNBEM) by using a modified DtN operator to improve the natural boundary element method (NBEM) is proposed for Neumann BVPs of the Helmholtz equation on unbounded domains. We prove the existence and the uniqueness of the solution of its variational...

Periodic signal has practical applications in many occasions the periodic signal met Dirichlet’s condition can expanse in Fourier series.Usually series expansion coefficients indicates the amplitude of the signal harmonics. Only the mathematical expectation for the known periodic signals using Fourier...

This paper proposes a smart domestic gateway used to manage power consumption, which realizes the interoperability across wireless sensor network (WSN), Wi-Fi and Internet. This system achieves smart home power consumption management. The implementation of hardware and software of the gateway has been...

Wigner-Vill distribution (WVD) will inevitably have cross-terms when it used for time-frequency representation in a multi-component signal. In order to suppress the cross-terms in Wigner-Vill distribution, this paper proposes a joint algorithm based on EMD-ICA. This algorithm resolves a multi-component...

Computer 3D technology is the core content of interactive graphic, which is a grid science to calculate, process and display 3D graphic through algorithm. From the digital-processing 3D graphic establishes a set of systematic module database using computer graphic and coding, through which to realize...

With the development of multimedia network, more and more real-time multimedia applications require a network capable of satisfying QoS constraints such as delay and bandwidth bound so that the messages reach each destination node at almost the same time within a certain specified time limit. Therefore,...

There exists a problem of endpoint effect in EMD, which makes the result of decomposition not perfect. The paper comes up with a kind of envelope correction method to suppress the endpoint effect on this question about periodical signal. The result shows that, the method can solve the problem on distortion...

By the intermittent hypoxic training of 72 male SD rats, we observed the changes of SDH activity in skeletal muscle in a quiet state, immediately after exercise and three hours later. We found that in these three states , SDH in rat skeletal muscle were significantly changed, and showed a downward trend...

This paper uses digital signal processor control horizontal continuous casting traction motor three states of positive rotation, inversion rotation and stop, to achieve the copper pull, stop, reverse thrust sport. At the same time, we can improve the yield, reduce the production cost by change the casting...

Forces carries out the task to improve effectiveness of communication command, is the important guarantee of communication support ability to ascend, the fuzzy analytic hierarchy process (AHP) to evaluate communication command efficiency, to a certain degree of communication security work guide role....

With the development of network application, network security is facing greater pressure. Based on the characteristics of intrusion detection in the wireless network of the Ad hoc working group, the article introduces the game theory, proposes a game model of network security, concluds the Nash equilibrium...

HiLo training sport mode , the rats in a quiet state , immediately after exercise , after exercise to study changes in skeletal muscle cytochrome oxidase three states under three hours , and then observed in rats HiLo training changes in mode of aerobic exercise capacity . The results show that : in...

The paper presented the design and implementation of the multifunctional smart power socket based on Cortex-M3 kernel STM32F103 MCU, using Zigbee technology for network communication and FreeRTOS as task scheduling management. The hardware design and software framework of smart power socket are described....

Around the type of power system of the low frequency oscillation, the mechanism of production, the analysis methods, the analysis tools and suppression method, etc, it summarized the research status of low frequency oscillation of power system. Therefore, based on this research status, the future analysis...

In this paper, it find out the way of splice the scraps of paper which come from the same page of the printed text documents together by MATLAB software. Firstly, the image is made to the value of two forms of matrix, to establish the algorithm of the scraps of paper splicing restoration model by analyzing...

A method based on fractal combined with Bior 3.7 wavelet is proposed to analyze atmospheric particulates’ fractal feature. By the use of microscope, atmospheric particulate samples were taken into digital images. After a series of image processing including Bior 3.7 wavelet decomposition and reconstruction,...

This paper presents an innovative damping characteristic of regenerative based on passive damper and permanent magnetic synchronous motor torque and speed characteristic. Different damping characteristic models were incorporated into single degree freedom of vehicle model and investigated. Simulation...

As the forefront of mobile communications, mobile phone industry broad market prospect attracts more and more enterprises to enter this field. With the rapid improvement of the industry, mobiles develop from original feature phone to smart phones, which can take pictures, catch video, access Internet...

In this paper, we solve the problem of the orbit design and control strategy of the soft landing of Chang’e 3,Use the Hermite interpolation method and the Parabolic interpolation method to analyze each stage of the process.By using the interpolation method in numerical analysis, which based on the theory...

According to the difficult in selecting parameter of SVM when modeling on the gas quantitative analysis,and existing methods need long time,SVM optimized by improved grid search method was proposed to built an infrared spectrum quantitative analysis of gas.According to this method,the spectrum data of...

An IGBT cell structure based on semiconductor physics were designed. The process parameters of the high-voltage IGBT have been calculated and adjusted. Using the optimal device’s dimensions, the doping concentration was analyzed systematically. Additionally, a simulating model of IGBT was compiled based...

Although spatio-temporal features (ST) have recently been developed and shown to be available for facial expression recognition and behavior recognition in videos, it utilizes the method of directly flattening the cuboid into a vector as a feature vector for recognition which causes the obtained vector...

In this paper, we consider a reaction-diffusion dynamic model which is of the classical Fisher type, but incorporates nonlocal influence into competitive term. We present two finite-difference algorithms for studying the dynamics of nonlocal reaction-diffusion logistic equation. We also present the results...

Aiming at the user clustering and page clustering in Web log mining and based on the analysis of K-means clustering algorithm and matrix clustering algorithm, the paper presented an improved clustering algorithm that combining fuzzy matrix algorithm with K-means algorithm. Extract compressed sub-matrix...

The high pressure turbine blade of CFM56-7B engine is risky to crack, it’s failure modes include transition zone crack, shank rupture, min-neck damage, edge of contact and split-shelf clog, which could be modeled and simulated by finite element method. The root cause of crack is found by aforementioned...

Image noise removal forms a significant preliminary step in many machine vision tasks, such as object detection and pattern recognition. The original anisotropic diffusion denoising methods based on partial differential equation often suffer the staircase effect and the loss of edge details when the...

The over-the-horizon(oth) attack of anti-ship missile guided by helicopter is a common style in the attack of surface ship’s missile. This paper does a research on the helicopter guiding error, and a proper method based on error transfer principle is proposed. Taking the unilateralism relative location...

Stochastic resonance(SR) is one of the applications in weak signal detection. Many researchers used the combination of the traditional first-order bistable system and genetic algorithm(GA), but the output of first-order bistable system is not smoothly enough, genetic algorithm has the phenomenon of losting...

Pipeline systems are widely used for transportation of petroleum and natural gas. It is clear that a continuous and automatic monitoring system is very necessary for petroleum and gas pipeline system. This paper describes an algorithm of 3D sensor node deployment based on petroleum and gas pipeline architecture...

Tree growth management decision-making model can simulate growth management of tree and perform quantitative analysis of tree growth conditions. This paper explores the feasibility of modern information technology in management assessment of tree growth, information technology include neural network,...

With the arrival of big data era,traditional network is difficult to meet the increasing data processing need.In order to solve the problem,software defined network emerge. SDN is a revolutionary improvement compared to the traditional network, it can greatly meet the giant data processing need. However,...

The aircraft fuel system simulation as an important part of aircraft design is a complex systems engineering, it is one of the experimental project to ensure the success of aircraft design. The test verifies the aircraft fuel system's correct and reasonable of design and calculation and verify that the...

To achieve the functions of alarm direct pass and remote browsing National Electric Power Dispatching Center put forward, each substation monitoring manufacturers commonly adopted the way based on their own workstations currently, which exists some problems such as resource wasting, higher transformation...

In order to achieve the quantification analysis and visualization of poplar morphology, the technology framework of poplar simulation based on growth model is made. The paper carries out data collection and field observation, then the morphological structure parameters and knowledge models which can...

Museum display design is a display art, which needs to compose a visual display form with strong series of art image in a certain space environment, making the audience accept the exhibition information in the process of flow in a reasonable and effective way. This thesis analyzes the design theme of...

With the maturity and popularization of the technology of power electronic transformation, the power drag, rectifier circuit is used in great quantities in the application fields such as power system, which is including diode uncontrolled rectifier circuit, voltage type PWM rectifier circuit. To stabilize...

Since the wind turbine brake is not easy to replace and repair in the high-altitude operations, it requires high reliability and high braking performance. Accordingly, a dynamic model is established for the megawatt wind turbine brake. By simulating and analyzing the braking process, the braking curves...

The stress calculated method of isogeometric structure analysis is studied in this paper. Based on the fact that stress calculated values at Guass integral points are more accurate than other locations, the stress field can be rebuilt by fitting the Guass integral point’s stress value from the displacement...

To reduce fuel consumption, a simulation model of range-extended electric vehicle for city bus drive cycle is established and a fuzzy control strategy to maintain battery SOC is put forward. The fuzzy controller’s input parameters are battery SOC and the change rate of SOC. Confirmed by the experimental...