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Using the method of ANSYS finite element analysis, we calculate the electric field interference between the ionization electrodes and ion filter electrodes. The effect of varying the electrodes width and distance on the electric interference field intensity has been investigated. In this paper, a method for selecting the electrodes width and distance is proposed by synthetically considering ions recombination...
The 9-Link dynamic model of a quadruped robot is built with Lagrangian method. Building the model from system view . Simplify the control of a quadruped robot under the four legs full supporting as the problems of tracking control of the truck motion, and the simple model is give. The motion of the robot under four legs full supporting is controlled by robust control. Settling the effect of the external...
This paper describes a control system for realtime interactive manipulation of microparticles using optoelectronic tweezers (OET) on a liquid crystal display. The OET is a powerful tool for trapping and manipulation of microparticles via image-induced dielectrophoresis (DEP). We develop a new control system for the real-time interactive manipulation of microparticles using OET. Our control system...
The MEMS-based micro solid state cantilever wind speed sensor has advantages of small size and high sensitivity of low wind speed. The designed sensor was simulated with ANSYS software and was analyzed with fluid mechanics principle. The fabrication of the sensor mainly consists of wet anisotropic etching and DRIE (deep reactive ion etching) on a 3 silicon wafer. The designed sensor comprises two...
Many flexible surfaces test as well as solar sail, bridges, dome of structures were important for healthy monitor. This paper presents a novel approach to the problems and we designed a passive smart structures test system using fiber Bragg grating (FBG) sensors which are embedded into the flexible surface with the technology of the smart materials and structures. The FBG interrogator demodulates...
On the analysis of the development, functions and frame structure of Digital Mine(DM), some key technologies such as topology structure, transmission layer system, inter-ring connection method and structures of normal node and cross connection node in the integrated transmission platform were studied in this paper. It was proved to be more reasonable that the branch of DM integrated transmission platform...
A DNA piezoelectric biosensing method for real-time detection of E. coli O157:H7 in a circulating-flow system was developed in this study. The thioled surface of the Au electrode could be immobilized by many inner Au nanoparticles, then more thiolated single-stranded DNA (ssDNA) probes which was specific to E. coli O157:H7 eaeA gene could be fixed through Au-SH bonding. The hybridization was induced...
The force sensitive characteristic of multi-resonator assembled on one crystal are studied based on analyze of the force sensitive characteristic of AT-cut quartz crystal resonators and the interior vibration wave transmission in crystal. According to the common-mode rejection theory, the resonance frequency of resonators on different places is processed in the means of frequency mixing, and the output...
Wireless sensor networks is one of important information acquisition methods and also has been a promising technique for many applications in recent years. Node localization is one of challenging and fundamental topics in distributed WSNs research. The goal of this paper is to propose an efficient range-free localization algorithm in WSN. We use directional antennas other than omnidirectional antennas...
This paper introduces a bilinear model to analyze and transfer expression or identity of 3D faces, and its applications in 3D and 2D areas. Our aim is to separate identity and expression factors of face data into two independent linear subspaces. First all the data are proceeded to have vertex-to-vertex correspondences. We build a morphable face model to transform these dense-vertex data into a low-dimension...
Now multi-spectral images and panchromatic images are widely used in remote sensing. In this paper we proposed an algorithm using normalized correlation moment of coefficient characteristic values based on principal component analysis and wavelet transform. The basic idea of this algorithm is to transform the multi-spectral image into three principal components at first, then perform wavelet decomposition...
Multi-sensor information fusion applied to intelligent building field and a corresponding control scheme of fire automation control system based on information fusion is presented in this paper. There are six levels in the control scheme, including sensor layer, sensor subsystem layer, primary fusion subsystem layer, decision management subsystem layer, actuator subsystem layer and actuator layer...
The real-time networked control system based on switched industrial Ethernet has been the developing trend of safety supervision system for coal mine. Considering the characteristics of data and information in coal mine, novel network hierarchy architecture for coal mine safety supervision was presented, which is compatible with IEEE802.3 standard. Having the redundancy ring network as one connected...
This paper discusses a proposed mixed query image and text retrieval database, combining text-based search technology and image content-based search technology for more accurate results. The target application will be aimed at large, categorized image sets, such as large image collections of libraries or patent offices. It can be shown that this mixed query image search engine, can achieve better...
A novel region profile construction method for mask pattern design is proposed. The algorithm is realized in our own developed web-based mask design platform. Comparing with traditional region creation approach, the area-oriented region creation algorithm is more intelligent, convenient and flexible for designer's operation. The design result can be shared and operated cooperatively online.
We present a micromechanical active amplifier, inspired from the principle of the outer hair cells in cochlea, amplifying both displacement and force. The present micromechanical active amplifier modulates the resonant carrier motion using the variable stiffness spring whose stiffness changes proportionally to the input motion. We design, fabricate, and characterize two types of the amplifiers A and...
The characteristic and learning algorithm of the RBF Neural Network (RBFN) were analyzed. A model with 2 inputs and 1 output was proposed to forecast the gas concentration. The value of sensors on key measuring points under a coalmine were chosen as training samples and testing samples. Then simulations were carried out with Matlab7.0. The results show that the training and testing root mean squared...
Blind separation of independent sources from their convolutive mixtures has problems in many real world applications. Especially the feed-forward structure has a side effect, a temporal whitening of the output signal. In this paper we present a feed-forward network architecture without temporally whitening of the estimated output sources. Experiments using speech signals are presented to illustrate...
A new hybrid neural network model is proposed for the document classification. The NMF-SLP model consists of 2 layers, in which the first non-negative matrix factorization (NMF) layer decomposes a document into several clusters, and the second single-layer-perceptron (SLP) layer classifies the document based on the clusters. The NMF layer is trained by factorizing the document word frequency matrix...
More and more people are using Web search engines to find useful information. However, when the same query is submitted by different users, typical search engines return the same results regardless of who submitted the query. So it is vital important to acquire and model Web user profile. But the traditional techniques do not provide satisfactory structures for mining Web user profile. In this paper,...
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