As traditional fire detection techniques have many disadvantages, the fire image automatic recognition algorithm based on video image processing is studied. After the images are preprocessed, multiple fire features will be extracted. Feature extraction has a great influence on fire recognition accuracy....

The paper presents an algorithm that aims to extract machining features from aircraft structural parts’ 3D model based on both face- and workability-based approaches under certain processing coordinate system. The proposed algorithm consists of the following 4 major steps for surface region segmentation:...

To solve the channel selection issue in opportunistic spectrum access, a new Q-Learning based algorithm for channel selection is proposed. The algorithm can lead secondary user to select channels with maximum cumulative reward, and maximize secondary user throughput. A Boltzmann learning rule is adopted...

Due to the physical space and information space have the complex coupling, building the information association of dynamic service become the key issue of the future Internet developing. The existing Internet theory and method is difficult to meet the challenges. This paper explained the architecture...

Real-time stitching is a research focus of UAV area. The speed and accuracy of stitching algorithm are both important for commanders to make right decisions in battlefield. In this paper, a real-time UAV aerial image stitching algorithm based on predicted region matching is proposed. A new matching strategy...

It was mainly analysed a S-band printed quadrifilar helical antenna for communication devices in this paper. And a dielectric loaded wide beam printed quadrifilar helical antenna was designed. A two-stage isolation resistor was placed in wilkinson power divider. The simulation results of this antenna...

Design of a 10:1 multiplexer in 0.18µm CMOS technology is presented in this paper. This circuit can be used in 12.5Gb/s SerDes transmitter. The speed of traditional 10:1 is difficult to enhance due to the serial 5:1 part. In this paper, 5B/4B converter is adopted to convert the 10 channel data into 8...

This paper presented the design of a side-feeding resistance-loaded antipodal Vivaldi antenna. The dimensions of the antenna have been simulated and analyzed with high-frequency electromagnetic simulation software HFSS. A side-feeding antipodal Vivaldi antenna for 0.38~4.8GHz was designed and fabricated....

The aircraft anti-skid braking system plays an important role for the safety during taxiing. Aircraft tire/road friction force is essential information for model based control law. In this paper, a robust control strategy with an observer-based dynamic aircraft tire/road model is given to improve the...

Along with the development of information technology and wide applications of network, information retrieval plays a more and more important role in people's life. But as the Twitter kind of short message service appears, a new problem has emerged in the world of information retrieval, that is, real-time...

It is important to analyze the soundness of the Web services composition. And the paper put forward a new method to determine the soundness. After modeling Web services area and Web surrounding area by the open Petri net, an efficient determination algorithm was offered to determine the soundness. At...

In this paper we present an overview of the most interesting object description techniques which depicts some descriptors that could be used to support higher level components for object recognition, behavior analysis, classification, and clustering. We are focused our attention on those techniques which...

The growth of data produced by the medical and clinical community requires the introduction of advanced techniques and resources in terms of computational and storage capabilities. The different problems and needs that afflict the information technologies for health support conduce to adoption of new...

This paper makes an exploration on the new mode of college English language teaching in China based on multimedia and network technology. In particular, it focuses on explaining the advantages of the new teaching mode of college English by taking an example of experimenting in the researcher’s university,...

A new architecture of Java System-on-Chip (SoC) is proposed for executing Java bytecodes directly. This Java SoC integrates a Java core, a Floating Point Unit (FPU), a Direct Memory Access (DMA) controller, and some other popular peripheral controllers on a single chip. All modules are interconnected...

Due to various factors, passenger flow has nonlinear characteristics. Autoregressive Integrated Moving Average Model (ARIMA model) is suitable for non-stationary time series forecasting while RBF neural network is a kind of forward neural network which has good approximation performance and is suitable...

Ad Hoc networks is a new type of wireless, multihop and centerless distributed control network, and the network infrastructure is not required. Ad Hoc has the features of strong self-organizing and anti-destroying ability. In the article, the characteristics of Ad Hoc network was introduced, the structure...

Fuzzy clustering algorithms have been widely used for image segmentation, typically such as FCM algorithm. However, the FCM algorithm is parameter sensitive, and its results lack of availability. To improve the above problems, a novel fuzzy clustering method based on semantic color tree for image segmentation...

Three-phase unbalance control strategy is used to improve the system performance when three-phase unbalance load or fault happens. However, when the distributed generation selected as the master in the microgrid stop working, due to the loss of system voltage direction, the traditional control strategy...

Low power and lossy networks have been an active area of research. Numerous protocols have been proposed for routing in these networks using metrics like hop count, delay, bandwidth etc. The IETF ROLL group has proposed a proactive gradient protocol called RPL. However, for a network with few mobile...

With the acceleration of the process of industrial design, Computer-aided design software to be more widely used. At the same time, engineers thirst for speed is also growing strongly. In this article We analysis the OpenFOAM CFD software and detailed testing its performance on high-performance computers,...

To solve the problems which exist in Energy-aware Topology Control Protocol Based on Gradient(ETBG) algorithm, one strategy that considers a combination of factors to choose the cluster head is proposed based on Analytic Hierarchy Process(AHP). This way not only uses the comprehensive weight that composed...

IMOS allows very sharp subthreshold slopes, even down to a few mV/dec at room temperature. However, the device has serious reliability problems, such as large threshold voltage shifts, caused by hot carrier induced damage and the large supply voltage. Hetero IMOS, using the small bandgap material as...

MOS Current-Mode Logic (MCML) is usually used for high-speed applications. However, the large static power dissipation of MCML circuit limits its application in portable devices. In this work, we proposed a power-gating (PG) technique to reduce the standby power of the near-threshold MCML. The PG 1-bit...

To deal with the two problems in image retrieval, i.e., the small number of query images, the ambiguity of an image - the image consists of many regions with different semantic meaning, in this paper, we proposed a novel method for image retrieval based on Bayesian multi-instance learning using unlabeled...

As traditional method mining for association rules between items in large and grand data sets is inefficient. In this paper we present an efficient method called BPMRA which is based on mapreduce and partition. We have compared BPMRA algorithm based multi-node and partition based single node method and...

The last decade have seen tremendous improvement in the development of new image information processing and computational tools based on sparse representation. Today, in the information sciences, computer vision and image process-ing, the development of sparse representation algorithms led to convenient...

The state feedback control using sum of squares technique (SOStools) combined with the nonlinear observer is applied to the depth control of a submarine. The mathematical model of the submarine is rewritten as the linear-like form, then the uncertainty caused by the variation of the hydrodynamic coefficients...

By observing the descriptors of the contour points, correspondence based contour matching is widely used in pattern recognition. However, it is a pity that the correspondences established by descriptor matching are not reliably. In this paper, a matching approach, in which the inlier correspondences...

K-means algorithm and ant clustering algorithm are all traditional algorithms. The two algorithms can complement each other. The combination of two algorithms will improve clustering’s accuracy and speed up algorithm’ convergence. Tests prove hybrid clustering algorithm is more effective than each above-mentioned...

For interference problems between multiple readers in the RFID (radio frequency identification) system of the Internet of Things, an anti-collision algorithm of RFID reader (CAAC) based on cultural optimization is proposed. The reader starts hierarchical clustering in the RFID network, by dynamically...

Deniable ring authentication allows a member of an ad-hoc sunset of participants to authenticate a message without revealing which member has issued the signature, and the verifier cannot transfer the signature to any third party. It is an important cryptographic primitive for privacy and anonymous communication....

The intelligent dispatching operation order expert system is designed in order to improve the power grid dispatching automation level and reduce workload of the dispatchers. The concept of the equipment container model is applied to this system to establish knowledge-representation of power grid topology...

Hyperspectal data contain more useful information for characterizing vegetation biomass, compared with multi-spectral data. However, to make full use of the hyperspectral data, the strong multi-collinearity in the data is supposed to be taken into account. With this study we evaluated three multivariate...

Regional education Informatization is a long-term, system and complex engineering. The study analysis the development status of our country’s regional education informatization, according to the specific problems of China's regional education informatization, and put forward the architecture of regional...

How to decrease the gateway queue delay in the Train Communication Network (TCN) with heavy communication load is a key problem. This paper models the queue scheduling as a reinforcement learning process and presents a self-adaptive scheduling algorithm of vehicle gateway node based on self-adaptive...

In this paper, we study the position servo control system controlled by DSP. The control algorithm implemented in our application is PI. PWM signals is used to share the switching dissipation ePWM module of the DSP and achieved twice switching frequency. A numerical consideration and the software flow...

High precision and high performance floating-point unit is an important research object of high performance microprocessor design. According to the characteristic of quadruple precision (QP) floating-point data format and research on double precision floating-point fused multiply-add (FMA) algorithms,...

In noisy condition, the accurate measurement of Lipschitz exponent is very important for many actual applications. All the modulus maxima are utilized to estimate Lipschitz exponent in each maximum line in traditional wavelet transform modulus maxima (WTMM) method, but as the positions and wavelet coefficients...

Moodle is an excellent course management system. Group discussion plugin can let teachers and students make full use of the Moodle platform to teach and learn, substantially improve the convenience for students and teachers to discuss questions, fulfill the auxiliary function of the network to the teaching....

Effectiveness and adequacy of test case design is the important part of the research in the field of software testing. In this paper, we analysis the software failure which may occur, based on software-related documentation and data, to establishment the software fault tree and get the minimal cut sets....

In traditional back-to-back dual-PWM converter system, DC-bus voltage is affected by load and grid impact of fluctuations, threating the safe operation of the system. In order to reduce the DC voltage fluctuation, a power feedforward control strategy was proposed according to the instantaneous active...

Dynamic response slow and DC voltage fluctuation when traditional current inner loop controller based on dq transformation applications in three-phase PWM voltage source rectifier (VSR). To these shortcomings, firstly this paper established discrete mathematical model of VSR, derived deadbeat control...

The traditional active shape model (ASM), according to the principal component analysis, gets main components for the shape, and then the average shape model is obtained to approximately express target object model. However, when the difference between the feature shape model of target and the average...

A counting system of the sewing machine production line is introduced. The circuit and software design of the system are also given. With AT89C51 used as the control center and optoelectronic switch used as the sensor, the system can detect actual quantity of the line, display the time and plan production....

Being a core component of an analog-to-digital converter (ADC), the operational amplifier is expected to provide sufficient DC gain and bandwidth to make the output amplitude less than ½ Least Significant Bit (LSB) in a half clock cycle. However, due to the limitation of the operational amplifiers in...

An Amorphous In-Ga-Zn-O TFT (a-IGZO TFTs) Current-Scaling Pixel Circuit for Active Matrix Organic Light-emitting Displays (AMOLEDs) is presented, it composes of four amorphous a-IGZO TFTs and one capacitor (4T-1C), which effectively compensates the threshold-voltage-shift ( Vth 1V) of the drive TFT as...

Perception investigation is one of major subtopics in the field of Human Information Processing System (HIPS). From its systematic design of cognitive experiments in BI methodology to its results, perception study provide support evidence for thinking investigation of HIPS, and may have an impact on...

Based on the mathematical model analysis of the three-phase voltage source PWM rectifier under abc reference frame and dq reference frame in this paper, a kind of three-phase voltage source PWM rectifier feed-forward decoupling control strategy is proposed. The inner current and the voltage loop of double...

this paper studies the problem of synchronizing a moving agent network by decentralized adaptive control strategy. And, each agent node is assigned nonlinear connections with those of neighboring agents. The moving agent network model exhibits a time-varying topological structure in two dimensional spaces....

This paper introduces the Polarization 3D technology and Active Shutter 3D technology, expounds the image quality index of 3D TV. This paper introduce the measurement of brightness /chroma/crosstalk/viewing angle. This paper propose center point measurement of 3D TV Eyes crosstalk testing method, enhances...

K-means algorithm is a kind of clustering analysis based on partition algorithm, it through constant iteration to clustering, when algorithm converges to an end conditions, and the output iterative process termination clustering results. Because its algorithm is simple, and easy to realize thoughts of...

Based upon the synopsis of software requirement development, this paper describes the essentials of user requirements exploitation, product requirements exploitation, requirements analysis and validation, and then puts forward engineering process relation and requirement development practice. Meanwhile,...

In cognitive radio system, secondary users are difficult to obtain the CSI (channel state information) of the interference channel from the primary users which have absolute right of the spectrum sharing with secondary users due to the unlicensed utilization of spectrum resource. In order to guarantee...

This paper analyses the advantages of distributed database on the ship parallel collaborative design platform, advances the theory of ship parallel collaborative design database, describes the application of distributed database on the parallel collaborative design.

This paper details a hybrid algorithm for estimating the parameters of polynomial-phase signals (PPSs) embedded in additive white Gaussian noise. This algorithm combines the high-order ambiguity function (HAF) and the generalized cubic phase function (GCPF), and is a modification of the hybrid CPF-HAF...

An efficient algorithm is proposed to estimate the parameters of multicomponent cubic phase signals with different amplitudes. This algorithm is based on the product generalized cubic phase function (PGCPF) and the product cubic phase function (PCPF), which are used to compute the cubic phase coefficient...

In order to solve efficiency of maze optimal path problem based on ant colony algorithm, we proposed a CUDA platform parallel programming model, executing the algorithm with GPU that significantly improve the calculation efficiency. A parallel matrix design method was introduced and the ant colony searching...

This paper put forward a novel intelligent algorithm of orthogonal design for circuit parameters. The intelligent orthogonal optimization differs from conventional orthogonal design. According to variance and variance ratio analysis of the orthogonal design, the next searching direction and range of...

Mobile Ad hoc Networks (MANETs) are temporary formed, infrastructure-less networks. The performance metrics deteriorate due to the unstable channel conditions, network connectivity, mobility and resource limitations. To improve different performance metrics, various cross-layering approaches are utilized...

In this paper, an improved face recognition algorithm is proposed based on the combination of modular 2DPCA and contextual constraints based kernel discriminant analysis (CCKDA) because of the disadvantages of CCLDA. CCLDA first transforms an image matrix to a vector which caused high dimensionality...

Based on FPGA, the hardware description language Verilog and the top-to-down design method of modularization are adopted to achieve the design of a simple CPU logic controller, in which the software design and simulation are conducted for each module of the CPU, and then each module is synthesized. The...

Concerning the problems of high time complexity and topological inconsistency existed in vector map simplification, a multi-resolution model of curve for progressive transmission is proposed in this paper. By using pre-stored vertex deviation to simplify curve and using an optimized monotone chain intersection...

Neural network algorithm is applied to image adaptive enhancement problem to determine the processing parameters in this paper. Based on the analysis of image enhancement theory, a BP neural network algorithm which contains forward propagation of information and back propagation of error is introduced...

The complicated decision making problem is one of the important components for the study on the system of artificial intelligence area. This thesis, based on the Bayesian technology and decision-making theory, is going to optimize the traditional IDs model and improve the ability of expression of the...

On the basis of the image data characteristics, this study contrasted four kinds of data model. Then it analyzed the three kinds of implementation methods. It contrasts the management modes of the distributed image database finally.

As Chinese economy is thriving rapidly, traffic congestion in urban areas is often the outcome of successful urban economic development, employment and housing. Urban traffic congestion must be understood in the wider context of city dynamics and agglomeration benefits.This study focused on the path...

Ground control point data is the necessary data in the geometric processing of aerospace image photogrammetry. Firstly, this study compared the storage management manners of the control point data. It analyzed the advantages and disadvantages of the file system mode and database mode. Secondly, this...

The detection and processing of the sound signal are significant to the fault diagnosis in industrial processing and production quality monitoring. The current sound signal collection system is mainly used to collect signal. It can`t meet the demand of the engineers on special occasions to master the...

On the basis of the model of the aircraft carrier "Kitty Hawk", the designer will obtain different models through parody transformation to change its aspect ratio(L /B ), block coefficient(Cb) and displacement( ) and calculate the resistance of different models. With the principle of the optimal speed,...

In order to research the sortie generation rate (SGR) of carrier-based aircrafts, an analytical method based on closed queueing network was put forward. A multi-class, multi-server non-preemptive (or Head of Line, HOL) closed queueing network model was analyzed. As the exact mathematical solution is...

Flow control technique is an important research field of aerodynamics. Flow control technique uses the interactions of fluid hydrodynamic to control and amplify the flow signal by changing the local flow. As far as possible to optimize the flow field distribution, increase the lift, reduce the drag and...

In digital image processing, Fourier transform is an important algorithm of image transformation. In order to improve the speed of Fourier transform, the paper proposes to deal with the image with GPU parallel computing through the method of GPU accelerating MATLB. The relationship of data scale and...

The grade examination management program is various, workload is big, and efficiency is low. This paper on the basis of the existing educational system and the provisions of the state on the basis of grade examination system, developed a test management data transfer system based on ADO.NET technology,...

Choosing input variable and networks architecture are key processes for modeling short term incidence rate forecast by artificial neural networks, in this paper a method based on rough set theory is proposed to deal with them. In the proposed approach, the key factors that affect the incidence rate forecasting...

In according to the issue of multi-signal jamming in communication reconnaissance, single channel signal separation for multi-GMSK signals has been studied with a method based on MLP. With parameters of Doppler-shift, time-delay, amplitude and coding sequences efficiently estimated, signals could be...

Material supply is the basic guarantee for the large ship sailing to ocean. In order to improve the efficiency of the supply of the large ship, the support of materials handling system is needed. According to the typical material handling system of the large ship, with the material handling’s time shortest...

First the traditional objects-attribute information table converted into a objects-attribute-attribute value table by using binary. Then two new concept is defined in this paper: concept vector instead of elementary sets (the equivalence classes of R) and knowledge matrix instead of equivalence relation...

With the development of cloud computing, cloud storage distributed the endless file system,but not a better copy strategy compatible with various file systems.This paper proposed ontology-based metadata replica which make different file systems mutual fusion ,and give a policy of replica allocation of...

This system uses three dimensional scene roaming technology into home design, breaks the current rendering home design mode. It constructs 3d indoor scene and indoor furniture models through 3d modeling, and realizes the roaming interaction of 3d home roaming scene by scene roaming technology, at the...

Virtual reality technology is applied to production engineering, it provides a revolutionary change to the oil industry. This paper we first analyze the function of simulation platform, then set up basic framework of the system, use 3dsmax and simulation software to simulate wellbore, oil-gas-water mining...

Similarity method is the key of the user-based collaborative filtering recommend algorithm. The traditional similarity measures, which cosine similarity, adjusted cosine similarity and Pearson correlation similarity are included, have some advantages such as simple, easy and fast, but with the sparse...

Based on actual project of unit test,it disscussed the application of testbed in unit test of aviation software.It introduced the configure of three general aviation software's development environment in testbed,and some modifications of code before test.It analysed steps of unit test and several common...

In order to evaluate the logistics model of B2C web store at present in our country, a dynamic data envelope analysis (DEA) model was developed. Using the model analyzed a Beijing B2C web store’s logistic model. Combined with the actual situation in our country, evaluation result shows that B2C web store...

A G -design of is a pair , where is the vertex set of and is a collection of subgraphs of , such that each block is isomorphic to and any two distinct vertices in are joined in exact (at most, at least) blocks of . In this paper, we will discuss some holey designs and incomplete designs for the join...

To exactly represent the graph data structure of BOM in actual design and production, BOM structure was defined as an independent entity in the storage model and the relations of Father_Part-Structure and Structure-Son_Part were separated and described mathematically respectively. A novel storage model...

With a view to reverse design of product layer, a tri-level precision model of product-part- functional face based on functional face was organized. The product’s precision information model was recovered from the 3D model, and the precision design was achieved. The implementation process of precision...

Part of speech contains important grammatical information, so it has great significance for the natural language understanding while the words in the sentence are marked on the parts of speech. POS tagging rules based on statistical methods and rule-based method can mining effectively, but its marked...

Aiming at the disadvantage of existing materiel maintainability quantitative requirements demonstration method, this paper studied the project of the materiel maintainability qualitative requirement demonstration Based on virtual simulation, in order to determine the materiel maintainability qualitative...

Aiming to lack for the verification method of equipment maintainability quantitative requirements, this paper researched the verification method of average replacement time through virtual simulation technology, and proposed the mathematical model of average replacement time, which can lay the foundation...

Based on the concept and organization mode of CSCW (computer support cooperative work), this paper is to describe the research on establishing an organization structure which has one center and multiple cooperative work nodes. By employing advanced multi-media processing technology and method, it shall...

A kind of text classification method based on fuzzy vector space model and neural networks is proposed in the paper according to the problems that a text can be belongs to many types during the text classification. Fuzzy theory is adopted in the method to look the occurring position of feature items...

Roaming platform is the most important part of the virtual reality, with which can shorten the exploitation time to a great extend. This walkthrough platform is based on virtual transformer substation, and has added collision detect, mouse identifying, natural phenomenon simulation and some other key...

The development of computer science and plane geometry brings a new favorable opportunity for the research about the Four-color Theorem. After converting original map to undirected graph, this paper proposes a new method based on undirected graph and polygon triangulation to prove the Four-color Theorem.

Aim at large amount and complex features of network video data, this paper proposed a fast algorithm of detecting pornographic video in streaming media. Combining the information of motion vector field and the features of pornographic behavior trajectory, we could judge that weather a video is pornographic...

The handling equipment optimization problem of material handling system for large ships is discussed in this paper. The optimization models for two supply ways which includes shore-to-ship and vessel-to-vessel are proposed respectively, which are converted to linear programming problems in order to analyze...

Recovery of degraded images due to motion blurring is a challenging problem in digital imaging. This paper presents a new method of Dirac Delta function algorithm to restore motion blurred images based on an analysis of the characteristics of the inverse filter method and the traditional algebraic method....

In order to accurately analyze the result, which comes from quantitative and qualitative detection based on gamma energy spectrum of NaI(T1) detector, peak boundary has become one of the main factors which influence the spectrum analysis. By implementing some common boundary determining algorithms in...

This thesis summarized the content of IOCP( I/O completion port ). It was improved in connection with the defect that is data communication’s more occupation on server system resources and its poor parallel processing ability, in the original on-line automatic-monitoring platform. It improved the shortcomings...

Cybersecurity, as stated in the 2010 National Security Strategy of America, “threats represent one of the most serious national security, public safety, and economic challenges we face as a nation”. This paper examines the cybersecurity situation that the nation faces. Based on this, the vulnerabilities...