The wheat kernels were processed by moistened in water. The spontaneous and water-induced luminescence data (photon counts) were noted with an ultra-weak luminescence (UWL) detector. The following was the features of ...
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In this paper, the performance of a two-way amplify and forward (AF) multi-antenna relay network is presented, where the worse receive signal-to-noise ratio (SNR) of the two end users is maximized. We first derive the...
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In this paper, the performance of a two-way amplify and forward (AF) multi-antenna relay network is presented, where the worse receive signal-to-noise ratio (SNR) of the two end users is maximized. We first derive the exact probability density function (PDF) of receive SNR for two users. Then an approximate expression of SNR in the high-SNR regime is obtained. A closed-form average sum bit error rate (BER) approximation is also derived to quantify the performance of the antenna selection system at high SNR. It is shown by simulation that our analytical result is efficient in estimating the network reliability, especially in the high transmit SNR region.
Aiming the special tree-structure of XML data, a triples-encoded method for searching XML documents is proposed. By representing both XML documents and XML queries in triples-encoded sequences, querying XML data is eq...
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Effective classification of web pages can improve the quality of information retrieval. The traditional classification algorithms are basically based on the analysis of Web content, but the content of the web page is ...
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Effective classification of web pages can improve the quality of information retrieval. The traditional classification algorithms are basically based on the analysis of Web content, but the content of the web page is complicated, filled with a large number of false, erroneous information, has seriously affected the accuracy of the classification of network information. To solve this problem, this paper presents a web page classification algorithm, Link information Categorization(LIC). Based on the K nearest neighbor method, it combines information on the website features, to implement the Web page link to information classification. Experiments show that the algorithm can get higher efficiency and accuracy on the Web page classification.
Weak electrical coupling connections are ubiquitous in neuronal system. In this paper, we examine the effect of time delays on the synchronization properties of the weakly coupled neuronal oscillators by means of phas...
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Weak electrical coupling connections are ubiquitous in neuronal system. In this paper, we examine the effect of time delays on the synchronization properties of the weakly coupled neuronal oscillators by means of phase-model reduction. The bifurcation analysis clarifies how the time delays affect the existence and stability of in-phase, anti-phase and out of phase synchronization states. The results show that time delay can promote synchronization in an efficient way.
This paper presents an adaptive neural network (NN) sliding mode control for synchronization of inhibitory coupled Hindmarsh-Rose (HR) neurons. A single HR neuron may exhibit spike-burst chaotic behaviors. Inhibitory ...
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This paper presents an adaptive neural network (NN) sliding mode control for synchronization of inhibitory coupled Hindmarsh-Rose (HR) neurons. A single HR neuron may exhibit spike-burst chaotic behaviors. Inhibitory coupling makes two HR neurons behaves in anti-phase quasi-synchronization mode. We first derive the sliding mode controller via active control strategy. Then, a simple radial basis function (RBF) NN is designed to approximate the uncertain nonlinear part of the error dynamical system which has been assumed to be available in the active control. The weights of the NN are tuned on-line based on the sliding mode reaching law. According to the Lyapunov stability theory, the stability of the closed-loop error system is guaranteed. Synchronization is obtained by proper choice of the control parameters. The simulation results demonstrate the effectiveness of the proposed control method.
To overcome challenges of processing timeliness and changeful topics when analyzing opinions of online news comments, free-tagging methods including two steps, object identification and polarity analysis, are proposed...
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Pulse gas metal arc welding (pulse GMAW) plays an important role in advanced manufacturing technology, and it is transforming the conventional welding process into fine controllable one. However, the development of so...
Pulse gas metal arc welding (pulse GMAW) plays an important role in advanced manufacturing technology, and it is transforming the conventional welding process into fine controllable one. However, the development of sophisticated pulse GMAW machines becomes very complex. The synergic parameters preset are needed in order to achieve optimum weld process. In addition, there are many facets of disturbances and adaptive process control is necessary to maintain optimum state. This paper reviews progress in control of pulse GMAW technology and summarize control strategies for embedded digital system detailedly.
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