In this paper, an on-chip clock (OCC) controller with bypass function based on an internal phase-locked loop (PLL) is designed to test the faults in system on chip (SOC), such as the transition-delay faults and the stuck-at faults. A clock chain logic which can eliminate the metastable state is realized...

Turbo codes have a wide range of applications in 3G mobile communications, deep-sea communications, satellite communications and other power constrained fields. In the paper, the Turbo Code Decoding Principle and several major decoding methods are introduced. Simulations of Turbo code performance under...

The development of multimedia technology in computer science enriches the traditional English teaching methods. As soon as the new technology applies to the English teaching, it arouses the attention and is welcomed by the English teaching professors both abroad and at home. At present, the multimedia...

Cloud computing, with superior computing power, low-cost and high-security, will be applied to the resource-sharing area of E-government information with great significance and value. From the point of theory, technology and practice, it is scientifically feasible to build a cloud-based E-government...

In power system state estimation, bad data of local area can make state estimation difficult, and accuracy of measurement can also have great influence on the result of state estimation. Based on grid partition, this paper forms a lot of independent sub area, then measurement weights are adjusted using...

In this paper, electric field shielding effectiveness (SE) of metallic experiment box with apertures illuminated by vertical polarization plane wave has been studied by using modal method of moment technique. Electric field SE has been calculated at three different points on the same plane inside enclosure....

At present pneumatic miniature robotic control system usually adopts PID control strategy. The basic PID control strategy has its limitations. To cope with this problem, a lot of methods to optimize this strategy have been researched. In the paper an improved single neural network PID control strategy...

An adaptive image watermarking algorithm is proposed based on block Discrete Cosine Transformation(DCT) and the improved perceptual model of Human Visual system(HVS).At first, the digital watermark is transformed by Arnold, then it is effective to make full use of the improved perceptual model in DCT...

Ramanujan sums, which have been widely researched in mathematics, recently began to attract more attentions in signal processing and communications. The traditional methods to get the values of Ramanujan sums follow the definition and formulas in number theory, both of which need factorization information....

In the field of information security, encryption and decryption operations in RSA cryptographic algorithm are both modular exponentiation. The direct computing method to implement this algorithm through software programming is to multiply M e times with iteration statements and later make modulo operations....

At present, the global petroleum exploration and production enterprises are all faced with dual huge pressures which are to lower operating costs and improve labor productivity, but the appearance of digital oilfield let these companies find a silver lining. This paper expounds the difficulties that...

In the 21 century, the construction of oil and gas resources information system has stepped into the mature and development stage, However,it also faces two technical difficulties: multi-data integration and the integration of attribute information and location information.This paper analyzes the technical...

Propeller cavitation noise continuous spectrum results from noise radiated from random collapses of a large number of cavitation bubbles. In consideration of randomicity of initial collapse of cavitation bubbles and similarity of frequency spectrums of various cavitation bubble radiated noises, theoretical...

In this paper, a hardware Euclidean distance transform (EDT) algorithm is proposed. The binary image data of each row are independent. For a binary image, the row distances and column distances are separately calculated. By taking the advantage of these two characteristics, a parallel EDT circuit based...

In the practical application of passive network impedance matching, variations in component tolerance, process, and load impedance may make the performance of impedance-matching network deviate from the designed or simulated result. The current work investigates the effect of these parameter variations...

On the basis of a certain type of radar is proposed to establish based on C / S architecture, teaching and training loop simulation of radar system design. System prototype developed by the host analog receiver with the received signal, and display the data passed to the client, and then displayed by...

Every year, fires bring great loss and damage, and arc faults is one of main causes. But it is identified that the conventional circuit breakers fail to interrupt the circuit when an arc fault occurs. It is necessary to find new protecting techniques to improve the safety of circuits and reduce the probability...

The detection range and the equipment-target encounter speed are key factors to the capability of target dimension recognition in an underwater electromagnetic detection system. In view of that, a novel dimension recognition method based on the detection range and the encounter speed extracting was proposed...

A silicon photoconductor apparatus having improved efficiency in infrared radiation detection by sandblasting the reflective surface of the apparatus and thereby creating a near-infinite number of reflecting angles and a corresponding multiplication of quantum energy yield. This article describes its...

On the analysis of terrain spectral features of Aoshan remote-sensing image, we identify spectral differences between the vegetation and other surface features, it combines mathematical morphology with vegetation distribution planning to complete the vegetation area extraction. Thus it can effectively...

On the basis of analyzing the situation of classified evaluation, this paper brings forward a security protection ability evaluating indicators system based on AHP. According to the algorithm of AHP, the hierarchical architecture, the computing method of indicator weights and synthetic weight are established....

Vector represents a major category of data managed by GIS, which is traditionally used for representing geographic entities such as political borders, roads, rivers and cadastral information. In this paper we present a key data structure and associated render-time algorithm for the combined display of...

This paper put forward the new idea of combining the fire equipment with grid technology in order to improve the efficiency of the fire fighting equipment management, as well as to ensure effective supervision of fire fighting equipment.

This paper classifies the DDoS attack prevention technology from the view of defense stage and defensive position. DDoS attacks have relatively low proportion of normal flow in the boundary network at the attack traffic, and the characteristics of the network are not very obviously. For these characteristics,...

with the promoting of education informationization process, more and more complex data is accumulated, the data mining techniques used in education. The work, that finding in hidden and useful information to guide education from large number of educational data, will be helpful to the education reform...

Pool fire is a major accident type of flammable liquid. In this paper, a particle system based 3D simulation model of pool fire flame is established. On this basis, a multi-point source model of pool fire thermal radiation is proposed. Each living particle in the particle system is considered as a radiation...

Using standard k- model with FLUENT software on large diameter CFD numerical simulation of air flow in a 90 ° bent tube, are three dimensional stress field and velocity field in the pipe. To explore non-change law of fully developed pipe flow through CFD numerical simulation on large-diameter flue gas,...

In order to solve the multidimensional data model and relational data model, query between the two-way data system query, data cleansing, data conversion, centralized, distributed data accuracy and consistency control problem, this paper described the concept of grid-related, the global data mining combined...

Traditional debugging and disassembly tools are much demanding to analyze as well as debug Cisco IOS. At the same time, analysis with these tools isn’t performed in single-step. In addition, some other defects also contribute to its inaccuracy. This paper presents a dynamic debugging platform based on...

Most seat control models rely on the concept of marginal seat revenue and the assumption of risk neutrality to develop an policy to solve this kind of problem. For the multi-leg dynamic seat control problem ,this study proposed a modified multi-leg policy to take risk into consideration by discounting...

In this paper, a cell balancing circuit for the Lithium-ion battery pack based on the Flyback topology is proposed. Balancing the lithium-ion battery pack is often employed to improve the energy utilization and lifetime of the battery. The proposed circuit uses the minimized power path to simplify the...

Traditionally, distributed system software developers print log messages when creating a program to track the runtime status of a system to help identify where problems may have occurred while the program is running. People often use system logs produced by distributed systems for troubleshooting and...

The logistics processes of the storage logistics enterprises is analyzed, the warehousing information models, system structures, management modules and their operational processes are studied, to provide enterprises with an automatic business information platform which not only meets internal management...

UAV system with a wireless data link for the calibration and test objects, designed and implemented a wireless data link system calibration equipment, medium-range UAV system to solve the simple means of technical support, equipment calibration testing process takes a long time, personnel, results poor...

Although many work have been done on corner detection, no generally accepted mathematical definition exists. This paper gives an explicit definition of corner which is based on the multi-orientation nature of corner and presents an algorithm for corner detection based on orientation estimation. Experimental...

For the great deal of harmonics and reactive power produced by these non-linear devices, active power filter can effectively compensate.To all alone realize the harmonic component and reactive power compensation,or to compensate both at the same time,the ip-iq detection method is applied in active power...

Information is one of the crucial factors of supply chain management, as well as manufacturing industry. The requirements of manufacturing supply chain management, the exchange of information between enterprises are stated, system architecture and function are built, so as to find a way to optimize the...

Optimization of adaptive traffic signal timing is one of the most complex problems in traffic control systems. In order to obtain control parameters of bus signal priority of the urban roads, a bi-objective optimization model for signal timing is established based on real-time data of GPS. As the goal...

One CNG remote intelligent monitoring system is designed and realized in this article. The monitoring system can receive real time monitoring information and monitor environment of CNG filling station by using GSM short message platform , terminal PC and cell phone based on ARM microprocessor, PTM100GSM...

This paper is about the differences between traditional and new Information Security paradigms, the conceptual difference between “known computer viruses” and sophisticated Cyber Weapons, the existence of a Cyber Weapons “black market”, the differences between Cyber War, Cyber Terrorism and Cyber Crime,...

Based on different methodologies, we have developed a new methodology that synthesizes, accelerates and optimizes the application of Adaptive Business Intelligence (ABI) in medicine, genomics, pharmaceuticals and other related sciences. This methodology -in its final phase- culminates in a stage called...

A completely automatic facial expression recognition system is presented in this paper, which consists of three main procedures. The first is based on skin color blocks and geometrical properties applied to eliminate the skin color regions that do not belong to the face in the HSV color space. Than we...

Rely on the development of information technology, information industry has become an important symbol of the information society. The information industry is the electronic information industry to provide information products and information services. This article through the analysis of the current...

The spatial data access laws reflects the general characteristics of user preferences in tile access. According to the access laws, the strategy of storage and organization can be adjusted and utilized to store the spatial data in right place. However, the tile access has dynamic features(server peer...

In accordance with the company’s request, we have designed an Access Control System based on multistage firewalls, whose work flow consists of the centralized management, application, check and automatically alteration of firewalls, to effectively control the access to the server from the clients. In...

Particle swarm optimization (PSO) and differential evolution (DE) algorithm are biologically inspired computing, which simulate the behavior of survival of the fittest from the systems of nature biology, ecology and so on. As heuristic random algorithms, they have characteristics of self-adaptation,...

This article is mainly about the application of wavelet in spectrum analysis. In signal processing, we usually need to know different frequency components in the signal. We use the frequency bands dividing characteristic of wavelet and FFT to process signals and pick up different frequency components....

the multi-objective distribution of multi-helicopter based on the feasibility matrix was proposed in this paper, which enhanced the effectiveness of aviation emergency rescue. The horizontal track planning of helicopters was put forward based on the morphology graphic process technology and heuristic...

Roller bearing is an important mechanical element of sorting machine induction. It usually has defects in outer race, inner race or balls due to continuous metal-metal contacts in high-speed operating conditions. This paper presents a novel diagnosis algorithm based on improved neural network and D-S...

The Serial Digital Interface is widely used in high speed uncompressed video data transmission. It's unsuitable to use the clock recovered from original data as the reference clock,because the recovered clock has large clock jitter. It must have low enough jitter. Traditionally, offset compensation and...

During network transmission, when an exception occurs(such as forgery, tampering, information confusion), digital medical image, as a diagnostic basis, can not serve as the evidence of medical accident case. And the ROI of medical image is unable to tolerate significant changes. In order to dealing these...

To overcome the long servo cycle, poor stability, weak parameter adaptability and other poor performances of domestic developed electro-hydraulic servo system of milling, it adopts the embedded design to set up electro-hydraulic servo control system based on STM32 MCU to realize precise control of copper...

Delay Tolerant Networks are characterized by intermittent connectivity, long delays and often constrained bandwidth. Delay Tolerant Networks often use multi-copy routing schemes for message transmission. Multi-copy routing schemes, such as Epidemic Routing, usually lead to congestion problems. In this...

Aiming at the question of parameter of double-tuned filter, A new method of designing double-tuned filter is proposed based on resonance frequency, by using the relationship that the impedance of double-tund filter and two parallel single tuned filters is equal and the resonance frequency of single tuned...

The emotion classification of text is an important research direction of text mining. Application on emotion text classification, latent semantic analysis algorithm has advantage of small occupied space, applicable to a large scale of text classifications. Compared with the traditional vector space model,...

Malicious script,such as JavaScript, is one of the primary threats of the network security. JavaScript is not only a browser scripting language that allows developers to create sophisticated client-side interfaces for web applications, but also used to carry out attacks taht used to steal users' credentials...

Directional antennas in wireless local area networks (WLANs) offer more benefits than traditional omni-directional antennas. Use of directional antenna can increase the spatial reuse and largely reduce the radio interference. In this paper, we attempt to propose a new medium access control (MAC) protocol...

This paper presents an image registration method to warp brain atlas of magnetic resonance image (MRI) onto computed tomography (CT) brain images. A new deformable model is proposed to add constraints on corresponding midsagittal planes (MSP). The point correspondences in the MSPs are built up from registered...

An improved Dijkstra shortest path algorithm is presented in this paper. The improved algorithm introduces a constraint function with weighted value to solve the defects of the data structure storage, such as lots of redundancy of space and time. The number of search nodes is reduced by ignoring reversed...

In this paper, we consider an optimal power allocation scheme for Rayleigh fading channels in cognitive relay networks considering both total transmit power and average interference power constraints. We derive the optimal power allocation scheme between the cognitive source and relay aiming at minimizing...

Continuity of software development activities determines that software development method is bound to progress. For the future advance of development of software development methodology, six important factors are put forward. The six factors are: software development techniques and tools of, software...

In the LTE system, SSS coherent detection is one of the commonly used methods. However, Theoretical analysis of the performance of non-ideal coherent detection is rarely seen. Properly modeling the Doppler Effect and channel estimation error, the paper focuses on the mathematic deduction of non-ideal...

Most of the current medical database in hospital information system is poorly applied, the low level data integration and superficial analysis can not satisfy the automatic access to medical knowledge, not to mention the requirement of hospital management. This paper introduces the key technologies in...

To solve the GPS/INS integrated navigation countermeasure problem, a method of traction partial jamming on GPS/INS integrated navigation is proposed. Deception jamming signal produced by jamming equipment can force GPS receiver to output navigation and position data that have gradual departure from the...

For the problem of cruise missile's performance test in complex electromagnetic environment, the whole trajectory simulation of cruise missile is researched in this paper. First, we analyze the role played by inertial navigation system(INS) in the process of cruise missile attack. Then, we build error...

Bootloader is an important part in the developing stage of embedded system. Most embedded Linux Bootloaders are developed based on development and application, which have the disadvantages of large code capacity and low booting speed. In this paper, by only operating necessary equipments closely related...

In this paper, we propose an improved alpha-beta search algorithm, named trappy alpha-beta (simply TrapA B), for game-tree in order to identify and set the potential traps in the game playing. TrapA B can be regarded as an extension of the traditional alpha-beta search algorithm which ties to predict...

Computer and information technology has evaded our every aspect of life. Information technology is seen in all aspect of the individual from banking and investing to shopping and communicating through the use of the internet services such as emails and chat rooms. Organizations and industries also utilize...

In this paper,we consider some simple SN P systems that perform the following arithmetic operations:two’s complement,addition/subtraction on negative integers and multiplication on two arbitrary positive integers.This paper provides an answer to an open problem about multiplication operation formulated...

With the improvement of precision in various fields, we increase high requirements for measurement accuracy. In this paper, we obtain the interference fringes change information (the distance information) with the help of laser scanning with different frequency. This interference method is an absolute...

Chaos system has important application to secure communication for its indeterminism. Based on studying the theory of chaotic encryption system, the Lorenz chaos system is applied to construct serial code and encrypt information, and then an experiment of encrypting speech validates that Lorenz chaos...

Nowadays, the GPU can provide about one order of magnitude accelerated over CPU code and even more, so it can be used in large scale science computing applications. The paper based on NVIDIA Tesla C2050 and dual-core CPU server through use NAMD 2.9 simulates three differences molecule number proteins:...

In the software methodology, the structure of the software development method is a worthy issue. After studying the structure of software development method, a rule is found. The rule is that every software development method is formed from the basic strategies of development software. Discussed the...

With the development of modern electronic technology, the intelligent robots are researched and developed in many areas. In this paper, the hardware circuit and system software are designed reasonably to achieve the robot carry water from origin to destination. The intelligent robot can carry water along...

The construction of nonferrous metallurgy informatization service platform is proposed, facing the problem of the low concentration, poor benefit and dispersive resource of nonferrous metallurgy industry in our country. The integration of nonferrous metallurgy industry information is realized, the electronic...

In this paper, a zero decomposition algorithm based on characteristic set methods are developed in reflexive difference and differential polynomial systems. The “generalized term order” is used to deal with negative exponents of difference operators in DD-polynomials and the reduction of two DD-polynomials...

OFDM-IDMA system with perfect performance is the key technology of 4th mobile communication. in this paper, we simulated the performance of OFDM-IDMA in AWGN and quasi-static Rayleigh channel respectively, the simulation results indicate that the performance of multi-user is close to the single use as...

To meet the demands of the transformer measurement equipment, it is necessary to need monitoring control system to control, display the characteristics of the testing transformer. The function of monitoring control system is to control the transformer measurement equipment which is mainly consisted of...

For traditional algorithm of association rules mining based on frequent item sets and ignored the exception rules, as well as the traditional issues such as frequent item sets algorithm can be costly, a new association rules mining algorithm which isn’t based on frequent item sets is given in this paper....

When the wind energy is separated from the power grid, explore to find a way by using four-leg active power filter to guarantee power quality to solve the problem caused by four-wire nonlinear load. Considering the disadvantage of phase locked loop, a real-time algorithm of detecting harmonic current...

Image entropy, which not only describes the average amount of information about the image source, but also reflects the statistical characteristics of image data, can be described as the properties of image features and image processing basis. This paper is aimed to put forward an adaptive image denoising...

Abundance of applications requires Power Communication Networks (PCN) to provide large bandwidth and QoS guarantee. PTN, the technique trend of future IP transport network, can meet the requirements. In this paper, we present details of QoS deployment in PTN based PCN of Jiangxi province of China. Firstly,...

Synthetic aperture radar (SAR) produces ocean SAR solitary images which include the information of internal solitary waves (ISWs), surface wave, terraininfo and noise. Based on wavelet transform (WT) and bidimensional empirical mode decomposition (BEMD), we give a new algorithm, named wBEMD, to obtain...

A new composite reservoir simulation model was developed to optimize the hydraulic fracture length and conductivity for guiding fracturing designs. The model is made of inner part and outer part. The inner part is dual-porosity and dual-permeability system, and the other is single porosity system. Based...

For the resting state functional magnetic resonance imaging (fMRI) data, it has an important significance in clinical medicine to extract the functional connectivity regions (Default Mode Network, DMN). Independent component analysis (ICA) is an excellent method to detect the DMN. It has been popularly...

Medical image data require strict security, confidentiality and integrity when transmitted and stored in hospitals. However, the transmission of wireless and wired networks has made the medical information vulnerable to attacks like tampering, hacking etc. And the Region of Interest(ROI) of medical image...

MMS EASE Lite development package is always used to realize IEC 61850 protocol, but this conventional developing method has several drawbacks, such as high cost, huge data redundancy and no correspondence to IEC 61850 service. Therefore, a set of communication system which can meet IEC 61850 international...

An improved data transmission system based on HDMI is proposed and implemented in this paper. First, the structure and algorithm of HDMI are discussed and analyzed. Second, according to the audio/video format requirements, a data transmission system based on an improved TMDS codec algorithm of HDMI transmitter...

This study investigated the public information sources in science or technology in Taiwan. A survey was conducted extensively in Taiwan to study civic network scientific literacy. Participants of this study included 2,024 individuals who were selected by using probability proportional to size sampling...

This paper proposes a method of segmentation of hand gesture, based on the static skin color model and background subtraction under complex background. This paper discussed the reasonable threshold selection of Cb, Cr in the skin color model and the segmentation selection of skin area combining the background...

The paper presents a calculation method to get the probable fingertips and webbed points in outline. First, use K-vectoe to calculate the K-slope of all points in outline and get a series of peak point sets. Then, cluster the peak point sets which have been obstained by K-medoids algorithm and get the...

This paper proposed a method of computing the hand direction vector. At first, using K-vector method, compute the K-slope of all the points on the contour to get a series of peak point sets; Then, cluster the sets which have been obtained through K-medoids algorithm; At last, detect the pointing direction...

This paper puts forward a gestures trajectory recognition method based on DTW. Through the direction characteristic to calculate trajectory characteristics, and through the coding to quantize direction characteristic, and at the same time, considering the direction of the cyclical, proposed a new distance...

In this paper, we compare and analyze the performances of nine unsupervised discretization methods, i.e., equal width discretization (EWD), equal frequency discretization (EFD), k-means clustering discretization (KMCD), ordinal discretization (OD), fixed frequency discretization (FFD), nondisjoint discretization...

This paper introduces a design of brushless motor control system in portable ventilators, which is based on ML4425 and C8051F330 microcontroller. For the simplify-cation in circuit design and programming, this is very suitable for portable ventilators. In the design, the ML4425 motor controller provides...

In order to remotely maintain the robots for high voltage power transmission lines in field application, a remote robot maintenance system is built up based on CDMA network. Network connection between the robot and remote maintenance center is established through intranet within CDMA network. During...

Along with the development of modern radar technology, the radar signal system is more and more complicated. This makes the description way of the existing radar signal feature cannot effectively express and analysis it's characteristic. Therefore, in this kind of situation, a description method of radar...

OFDM has been successfully adopted in Digital video broadcasting-terrestrial (DVB-T) due to its excellent spectral efficiency and inherent resistance to multipath effect. However, OFDM is a multi-carrier transmission technique and sampling frequency offset (SFO) always exists in OFDM systems. It must...

In this paper, we design a linear time algorithm to determine whether a Halin graph H has a cubic subgraph H*. If H has, then the algorithm finds a cubic subgraph H* in H; otherwise the algorithm answers “No”

A predistortion linearizer used for Ka-band travelling wave tube amplifiers (TWTAs) was proposed. Based on analysis of nonlinear transfer characteristics of TWTA using a power series, the inverse nonlinear distortion characteristics of predistorter which was also the model of predistortion linearizer...