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With the rapid development of industry and agriculture, there are thousands of tons phosphate and nitrogen releasing into surface water. Phosphate becomes the main reason for eutrophication, resulting in deterioration of water quality. Ferric sludge from drinking waterworks was found to possess potential efficiency to remove phosphate ions from aqueous solutions. The maximum phosphate ions adsorption...
This study proposed integrating Mobile RFID and IPv6 mechanisms, in order for mobile phones to read ID labels on posters, acquire data via mobile network without need of data transmission and conversion by several servers. This mechanism could reduce data transmissions and waiting time of users, and provide the users with more convenient applications. Moreover, the proposed architecture complies with...
Based on the Universal Plug and Play (UPnP) home network, this study established a portable plug-and-play multimedia sharing system, comprised of a portable media sharing server and portable media player. With this server, multimedia access services not yet defined by the UPnP architecture could support services shared by iPod, DVD, IP-Cam, and digital TV, in order that users could share multimedia...
Majority of evaluation methods on interference temperature algorithms are based on the assumption that either the interference signals or the user's signals are no directions. This is a mathematical constraint that is not satisfied in many applications. In fact, without consideration the signal directions increase estimation interference temperature, that is, reduce the frequency utilizing chance...
The main purpose of this paper is to predict stream-way transition with group method of data handling (GMDH). Therefore, the downstream stream-way transition according to the upstream conditions is forecasted by group method of data handling. Five main factors may affect the stream-way transition include inflow position, inflow angle, slope, flow discharge, and sand content of suspended sediment....
A diagnosis method based on integrated information fusion which combining neural network and Dempster-Shafer evidential theory is presented in this paper. In the method, vibration-testing data of hydropower units is processed through several sub-neural networks and the output result of each sub-neural network is used as the corresponding BPA (basic probability assignment) function that is hard extremely...
It is suggested in this paper to denoise the ultrasonic inspection signals using wavelet transform. The theoretic base is that wavelet transform is a band-pass filter. Firstly, the frequencies of the inspection signal are evaluated according to the excited signal. Secondly, an appropriate scale for wavelet transform is computed following the laws between the scale and the frequency. Thirdly, wavelet...
The investigations on half-mode substrate integrated waveguide (HMSIW) optimized for use in high-speed bandpass digital interconnects is reported in this paper. It is known that the substrate integrated waveguide (SIW) has been successfully proposed and used in ultrahigh-speed digital interconnects. The structure features low-loss, low-crosstalk and easy-to-fabricate in planar form using a standard...
In the paper, we present a novel approach to modeling plants from images by detecting apex features. First, an effective algorithm is proposed to extract apex features in volumetric data recovered from the images. It provides position and pose information for assigning 3D generic leaves. Then, the 3D leaf shapes are determined by an optimization based on the volume. Finally, Branches are modeled by...
Convenient reconstruction of natural plants is a difficult task because of their intrinsic complex geometry. In this paper, we propose a convenient image-based approach to modeling and rendering large-leaf plants by view synthesis based on an approximate geometric model. The model we adopt consists of a set of billboard clusters, obtained by automatically decomposing a volume based on the flat property...
This paper presents a distance education Website based on WEB2.0 CMS system, which is used in the United Nations development program (UNDP) 403 project. The implementation of this project will pilot sustainable models for distance teacher education in remote rural areas in northwestern provinces The paper begins with an introduction about the UNDP 403 project initiatives and presents the system design,...
High power amplifier is the key element of microwave transmitters. Solid-state spatial power combiner is issued to replace traveling wave tube amplifier (TWTA) in space communication systems. To comply with space requirements a new compact Ka-band spatial power combining architecture is proposed using a double-faced tray. To match the 2 times 2 combining structure, double antipodal finline is designed...
Technique of multiple windows frequency estimation integrating SVD offers a efficient method which estimate interference temperature in radio frequency environment. Since this paper uses a way which SVD integrate the neural network, the complexity of tradition arithmetic was predigested and improved the nicety of estimating interference temperature. At the same time, the paper provides a good method...
In this paper a new technique is proposed for time-domain detection in energy detection. The proposed scheme is based on a independent-component analysis (ICA): blind separation of unknown source signals. This method not only improves the nicety of time-domain detection for narrow band signal and the sinusoidal signal but also reduces the power of the whole detection system.
In this paper, we present a Ka-band power combining amplifier based on a new single double faced tray architecture. Using 4 off-the-shelf GaAs monolithic-microwave integerated-circuit (MMIC) power amplifiers with double antipodal finline power splitting/combining antenna arrays, the power combining circuit can produced up to 83% of combining efficient. Taking one with another, the new combining architecture...
A robust face watermarking scheme is proposed to provide a solution to copyright protection of semantic content. To address the issue of less robustness to geometric attacks in watermarking scheme, Zernike moments based invariant features are extracted and some selected Zernike moments are proposed to carry a multi-bit watermark. Watermark signal is embedded into face region in the intensity spatial...
A simple fuel economy operating mode and a comprehensive fuel economy operating mode of tractor equipped with CVT are proposed in this paper. The former takes the minimum fuel consumption rate point in the whole engine operating range as the target, the throttle opening keeps constant, the gear ratio of CVT is adjusted by the controller which is a single parameter control system. The later takes the...
We present an approach to decomposing branching volume data into sub-branches. First, a metric is proposed for evaluating local convexities in volumetric data, and it is a criterion for global selection of tip points. Second, a multi-path growing strategy is adopted to segment the volumes based on a DFS transformation starting from the tips. Experiments show that this approach is capable of generating...
Discuss the connotation and the implementation process of quality chain model, think that quality chain node identification and evaluation is the key to the effective implementation of the quality chain operation model. In the perspective of quality chain node, design the evaluation index system of quality chain nodes task execution capability, and use semantic-based fuzzy evaluation method and analytic...
We present an algorithm to automatically extract skeletons for branched volumes by shape decomposition. First, a region growing strategy is adopted based on a distance transformation to decompose a volume into several meaningful components with simple topological structures. Then, the skeleton of each component is individually extracted. Finally, the skeletons of all the components are integrated...
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