Parallel processing is an effective way to process Synthetic Aperture Radar (SAR) data quickly and realize realtime imaging. Based on the traditional serial Range-Doppler algorithm, a parallel SAR imaging processing scheme is present by using of pipeline technology, and partition approach of computing...

In order to make a quantitative description for the running status of the scroll compressor, a fault diagnosis method combined with the theory of entropy and grey incidence degrees in information theory is set up. Based on singular spectrum entropy in time domain, power spectrum entropy in frequency...

Guilin is not only a minority living area that full of profound folk cultural but also a world famous tourism city. Research and analysis of the Guilin folk culture, give full play to its inheritance and creativity and display in the form of animation, it is a meaningful exploration and research for...

The initial boundary value problem for parabolic equation with Neumann boundary condition is a kind of classical problem in partial differential equations. In this paper,we consider a heat inverse problem with moving boundary. By introducing a density function for potential method, thisproblem is essentially...

Sequence constraint mainly considers the occurrence time of item, which can determine whether an association rule is valid. This paper proposes a novel algorithm SeqARM that aims to mine strong association rule with sequence constraint and runs on the second phase of association rule mining. SeqARM employs...

This paper introduced basic knowledge of Petri nets and workflow, and invariant analysis technique of Petri nets models structure, and integrate the real application circumstances of the workflow of receive document in document management, constructs an integrated workflow model based on Petri net. Further...

The image research on loess microstructure which has profound influence on loess engineering mechanics properties is a new subject of geotechnical, the loess microstructure information and its section of the occurrence can be reflected via CT or electron microscope technology. The loess microstructure...

Group delay distortion between channels is one of the most important factors which affect the BER (bit error rate) performance of DBF (digital beam forming) System. The basic principles of DBF and the concept of group delay are first introduced, and a linear group delay filter is designed based on the...

In this paper we present a high order method to solve the Stokes equations with random coefficients numerically. A stochastic Galerkin approach, based on the truncated Karhunen- Loeve decomposition technique for the stochastic inputs, is used to reduce the original stochastic Stokes equations into a...

Analyzed how did the fiber length, the attenuation and the average photon number of the pulse emitted by the single photon source affect the receive efficiency in the fiber channel quantum key distribution system based on the BB84 protocol. A theoretic model relative to the system was represented. It...

The load of DSP and FPGA program are usually accomplished by the way of JTAG. But in some occasions, the circuit of DSP and FPGA are sealed up in the equipment; it is not convenient to update the program by dismounting device. For example, certain aviation equipment left only one interface of ARINC429...

Different from traditional Internet communication manner, the Blog has its own advantages and features. It can increase communication between teachers and students, expand the field of study, the blog used in the teaching of English writing helps improve students English writing ability, students should...

Contactless IC card is a new technology in IC field. It is the combination of radio frequency identification and IC. Especially, in bank system, magnetic stripe cards will give place to IC smart card in the near future. Therefore, an increasing number of contactless IC cards will be required to test...

In the spectrum estimation algorithm based on Compressed Sensing, the selection of measurement matrix has significant influence on whether can estimate the signal power spectrum with high precision. In the article, it briefly describes the basic principles of spectrum estimation algorithm and the common...

By the research of Web service architecture, the article puts forward a new trust-based access control model, which is based on service-oriented architecture (SOA) and combines with service matching. The model puts the trust as matching criterion. Transaction is divided into three grades according to...

Han Dynasty stone carving is Chinese nation's outstanding cultural heritage, how to protect and promote it is an historical responsibility. In recent years, there has been a lot of research on the Han Dynasty stone carving, and has achieved certain results. But the digital research on it is still very...

To improve the reliability of spectrum sensing, a cooperative spectrum sensing information transmission scheme is discussed in this paper. Pre-coding and cyclic delay diversity (CDD) techniques are fully considered and properly combined to obtain diversity gains. Simulation results show that the proposed...

The recently widely-spreading usage of combinatorial interaction testing is dramatically improving the effectiveness of highly-configurable software. Conventional techniques based on greedy or heuristic algorithms can lead to suboptimal result in the size of the built test suite with unstability. In...

Aiming at the low-rate and short-distance communication in existing temperature and humidity monitoring system, this paper designs a remote monitoring system based on 3G and Internet technology. This system consists of data acquisition module and data remote transmission module. Atmega128 is used to...

In GEO satellite mobile communication system, a line-of-sight (LOS) component exists as well as multipath component, which are influenced by buildings or foliage that causing shadowing effect. Satellite mobile channel is described as fading model based on Markov process for channel properties in large...

In recent years, with the deepening of information technology, people facing increasing amounts of information resources. At the same time, people's demand of information is more and more. For digital library, with a wealth of information resources, how to give readers a deeper level of personalized...

Along with the rapid development of the network games in China, the disputes around the virtual property occur frequently, but our country's existing law doesn't have clear rules to solve the problems. To speed up the related legal system construction in order to protect the healthy development of the...

At present, there are many problems in the core programming curriculums of the specialized computer science such as low coordination with other courses, insufficient fusion and poor integration with the overall development of special discipline. The present study is mainly focused on programming curriculums...

This paper depended on that video monitoring and video images in the coal mine were susceptible to dust, light and miner's safety helmet and other special environmental impact. In order to realize the real-time and accurate face recognition rate, and lay good foundation for miners behavior characteristics...

A total design scheme for the high compression ratio methanol engine electronic control unit (ECU) was developed. Chosen the ARM Cortex-M3 based microcontrollers LPC1766 as the main controller of electronic control system, then the signal processing circuit module, main controller system circuit module,...

Aiming at the problem that users often can not retrieve useful information or retrieved information is inaccurate, in this paper we put forward an information retrieval model based on Idiom Literary quotation Ontology. The model and its characteristics were analyzed in detail. Through a systematic in-depth...

As regard to improve the efficiency of grouping aggregation calculation, the data is compressed by using binary encoding, and the dimension hierarchical grouping attribute set encodings of each dimension table are calculated by using the dimension hierarchy tree. Then different encodings are put into...

How to manage increasing bicycles in a university campus is a challenging problem. To solve the problem, we design and implement an intelligent bicycle parking system based on the Internet of things. The system architecture is described, and the system modules are introduced. Moreover, we present the...

In 2005 China began to implement a managed floating exchange rate system on the basis of market supply and demand with reference to a basket of currencies. since 2010, the RMB exchange rate began to appreciate sharply, till now, the pressure of RMB appreciation is still huge, and has great impact on...

Against the satellite heterogeneous network optimal selection problem, in this paper we propose a network selection algorithm based on the Analytic Hierarchy Process (AHP) method and the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) method. The algorithm considers the parameters...

Acoustic echo cancellation (AEC) algorithms are widely used in communication devices. One of the main design problems is double-talk issue. The recursive prediction error (RPE) algorithm based on autoregressive (AR) model has been proven to be more attractive to traditional approaches. However, it adapts...

In distributed database system, the distributed deposition and redundancy data brought convenient to fault recovery, but they make distributed query processing more complicated at the same time. Query optimization and processing is one of the key technologies in distributed database system. It generally...

This paper implements a shared memory switching structure with multicast function due to the demand of multicast function on the satellite onboard switch, introduced each module of the ideas and working process in detail. Key modules are programmed and realized with Verilog HDL. The results of ModelSim...

This paper is trying to research a text similarity algorithm which based on graph theory. A text is mapped into a graph which consists of terms as its nodes and term sequences as its undirected edges. The Maximum Common Subgraph (MCS) of two graphs is useful for analyzing their similarity and the similarity...

The MELP vocoder has a good performance at 2.4 kb/s and is selected as the Federal Standard Vocoder of the United States. However, due to the simple U/V decision of MELP, desired synthesis performance is not achieved in transition frames. This paper presents an improved MELP algorithm in which transition...

The problem of relating projected and captured stripes, here called the Indexing Problem, has proved to be difficult to overcome reliably for stripe patterns in color structured light, due to color fidelity of the projector and the camera, the ambient light, texture of measured object and other factors....

This paper researches the intrusion detection problem of the network defense, pointing at the problem of low fitting defects in the traditional detection algorithm of high precision and low forecasting accuracy under the situation of small sample training, and puts forward the algorithm of Support Vector...

This paper is based on the analysis of the unified standards, the main construction contents, the model and steps that an informatization system should take during its construction and implementation, which medical equipment manufacturing enterprises face in the process of informatization. In this paper,...

This paper is based on the investigation and interview methods to probe on multimedia English teaching from the students angle of view and cognitive psychology. The author achieves results after conducting a preliminary comparison into the relationships between traditional English teaching and multimedia...

SPi is an end system of validation technique, in which routers mark packets, and end system performs filtering. we construct the simulation with various network topologies to verify the effectiveness and the filtering accuracy of the SVA architecture. The simulation results show that, SVA can respond...

Gyroscopes are widely applied in weapon system and other high precision system. During the using course, the reliability and performance of gyroscope are influenced by environment and using condition. The performance of gyroscope degenerates periodically, and the remaining useful life (RUL) is payed...

The credibility of the spacecraft telemetry data can be used to characterize the confidence degree of telemetry data and improve the accuracy of the spacecraft condition monitoring and diagnosis system. This paper proposed the telemetry data credibility calculation methods based on the probability statistics...

Weibos have become wildly popular in China in recent years, and state media reports that there are more than 300 million registered users. The Real Name Policy[1] requires all users on Chinese weibo websites to register with the name that corresponds with their government issued ID card. With the rapid...

Recently, more and more enterprises use virtualization technology and cloud computing technology to improve the level of information management. Private cloud document management system from the lab to practical application. We launched a private cloud file management system is characterized by the automatic...

Public opinion is the development and changes in certain social space around the intermediary social events, public social managers and held social and political attitudes. In order to improve the efficiency of text clustering, this paper proposes a new similarity measure model OFM. In the first stage,...

The influence of nozzle location on the efficiency of ejector was discussed according to lots of calculated results. Changing nozzle location will have influence on the efficiency of ejector without modifying ejector structure

Accurately and reasonably evaluating cyber-attacker's capability can help to scientifically forecast following attacks in order to give tailor-made defense tactics. At present, the evaluation measures of cyber-attacker's capability are primarily based on attack effect and the related achievements are...

In the study a cellular automata (CA) was applied to model the spread process of pine wilt disease (PWD), and a PWDCASim tool was developed to simulate PWD spread based on the CA model using VC++6.0 platform. For the further understanding of PWD spread with the CA model, a case study was implemented...

Information visualization in digital library can solve some problems faced during its development. In formation visualization consists of four parts: determine the object, visualization mapping, space structure and graphics rendering. This article introduces application of information visualization in...

In this paper, we consider an event-driven wireless sensor network (WSN) scenario, in which the events arrive with a certain probability in a time of interval. Firstly, we analyze the event delay in a single node in an M/G/1 vacation queueing model. Then, considering the limited buffer space, channel...

In the identification process of modulated signal based cyclic spectrum, it is chief to be synchronized for the received signal. The article focuses on the reception signal which is not synchronized. When uniform distribution variable delay exists, it will not have cyclostationary, namely it is converted...

With network technology advances, how to take advantages of different networks to provide users with creative and convergence service experience is of great strategic significance to tri-play service providers. A new video service cloud platform iVideo platform is proposed in this paper. The overall...

The most important parameters of the battery management system are the state of charge(SOC) and state of health(SOH). The traditional method of estimating the SOC and SOH is to take measurement of the discharge current and the open circuit voltage. This paper proposed a new method of predicting the SOC...

The simulation technology saves the cost of test, improves efficiency and in favor of the image acquisition. This article based on the OpenGL simulates the real-time dynamic 3D target, the physical characteristics of the target and the notion characteristics in the real world. The target images collected...

The development of the high-tech industry, is an important foundation for the country to enhance industrial competitiveness, and is also one of the important manifestation of a country's composite national power. In order to research mechanisms, which promoted high-tech industrial cluster, this paper...

According to the HSV color space characteristics , changes the modeling space in the process of Gaussian mixture model, based on the setting of each component, deals with shadow casted by using the Gaussian mixture model algorithm detecting the moving objects. Morphological operators are used to compensate...

The ball game is designed with 3D physical sensor technology based on the Android platform. There are three modules in the game, the presentation layer module, the background logic module and mobile phone posture calculation module, and the classes in the module are introduced, the algorithm of gravity...

Metric-space indexing is a general method for similarity queries of complex data. The quality of the index tree is a critical factor of the query performance. Bulkloading a metricspace indexing tree can be represented by two recursive steps, pivot selection and data partition, while pivot selection dominants...

Face segmentation is a crucial problem in face recognition and other areas like pedestrian detection. Level set methods have been widely used in image segmentation. In this paper, the modified level set evolution equation is used in the level set method to segment the face. Based on the signed pressure...

According to the model of K-anonymity, the attributes of information tables in Electronic Commerce have been divided into three parts: identifier, Quasi Identifier, sensitive information. To conceal privacy information for consumer, the paper adopted a recode method to protect the name and cell-phone...

In this paper, with the actual data of a lecture contest'prevailing method's defects to remove a maximum score and a minimum score, average of the rest to determine the ranking of the contestants are found. Comparison of three methods of evaluation that prevailing method, calculating raters weight once...

With the development of mobile Internet, more and more people begin to get convenient service by mobile phones. Obtaining one's current location by GPS positioning or network positioning has become one of the important foundations in most applications of location based service. In this paper, we designed...

Channel estimation is one of the most significant technologies in the orthogonal frequency division multiplexing (OFDM) system and its accuracy will influence the performance of the whole system directly. Among all kinds of channel estimation algorithms, the least square'LS'estimation and the linear...

This paper analyzes the current common teacher evaluation methods, and points out the shortcoming of current methods of using the rubrics: they rely on the fixed rubric rules, and take less into account students opinion text published in the LMS (learning management system). The paper provides an online...

The difficult of multiplexer design is to eliminate residual susceptance. In order to eliminate residual susceptance obtaining impedance matching ,this paper designs the computeraided design software of star-point diplexer, star-point triplexer and constant impedance diplexer based on the Matlab development...

Distance-based indexing is a widely used technique for general purpose search. Pivot selection is the most crucial step of bulkloading a metric-space indexing tree. Current pivot selection methods are mainly based on linear methods. A non-linear method based on Locally Linear Embedding is proposed. Empirical...

Based on the three-layer model theory for steganography communication system, this paper designs a new steganography transmission protocol, to achieve a more effective frame structure, more reliable transmitting mechanism. Both text message dialogue and file transmission communication based on the proposed...

In the network information technology as the role of the media, sports fitness and entertainment industry in social demand will be greater, have a more broad market prospects, at the same time it has the organic composition of capital is low, less investment, quick returns characteristics, is more industry...

Recently, abnormal changes of global climate, represented by earth warming, has become a common threat and challenge faced by the world, and has directly affectted the existence of the human society and its sustainable development. Kyoto Protocol allowed developed countries to provide developing countries...

According to the characteristics of alarm data and the alarm spread in SDH system, and the existence of various shortcomings of the classical algorithm, this paper presents the FP-Growth of non-temporal association rule mining algorithm. We join the relationship between network topology as a constraint...

In this paper, we made the plan of a load testing, and got results by means of the LoadRunner which is an automatic testing tool. We fully considered the characteristics of the electronic commerce application, designed the reasonable test cases, and simulated the practical scenario. In the process of...