The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Based on the demand of material, this paper first selected the evaluating factors about choosing suppliers, and analyzed the correlation among evaluating factors. Then, by combining the merits of Analytic Network Process (ANP) and entropy right, this paper proposed a method to calculate the compound rights of factors. The new method fully takes advantage of the relationship between factors and the...
Aiming at the numerical integration of oscillating functions, a method based on the neural network with trigonometric functions is proposed in this paper. The author uses the trigonometric function acting as the activation function of neural network, and uses the output of neural network approximate to the oscillating function. The example has shown that the method proposed is effective and has high...
Regression-class is defined as a subset of the data set that is subject to a regression mode. Mining regression-class in heterogeneous data sets is attracting much attention in a variety of disciplines. Traditional data sets can't reflect prior information of data. In this paper, we consider ??fuzzy point data sets??, which is defined by giving a fuzzy membership to the data in exact data sets, for...
A nonlocal image inpainting model is proposed by incorporating the nonlocal differential operators into the curvature-driven diffusion model. The new model differs from the original model in that pixels of similar structures rather than pixels in the neighborhood (the case for the original model) are utilized to estimate the lost pixels. This difference makes the new model performs very efficiently...
Knowledge of vehicle headway distribution is very important for intelligent transportation and intelligent vehicle simulations. Various headway distribution models have been proposed, but most of them only fit for a certain traffic situation. To solve this problem, we study the dependence of headway distributions on traffic status in this paper. Results show that the log-normal distribution model...
Objective Xanthine oxidase inhibitory activities of the total biflavonoids and eight biflavonoid compounds isolated from the medicinal plants of Selaginella labordei have been investigated. Method The active compounds were screened out by measuring the inhibition rate and the 50% inhibitory concentration (IC50) of each sample against xanthine oxidase (XOD) in vitro. Result Three kinds of biflavonoids...
It is important problems for supply chain management that supply chain's firms cooperate and coordinate by which contract to achieve optimum systematic objectives in distributed supply chain currently. In this research, we move beyond conceptual analysis by developing a general cooperation contract model and a benefit-sharing contract model under uncertain response time and time-sensitive demand in...
This paper presents a hybrid excitation synchronous machine which combines a permanent magnet excitation with a wound field one. With two sources of flux, this kind of machines is cited more and more frequently in vehicle application for easier control of flux. After a brief description of the structure, some methods will be presented to improve the performances of this machine. Simulation results...
Transaction management in Grids is responsible for ensuring the reliable execution of inherently distributed Grid applications. Grid transaction management is different from existing distributed transaction models because Grid resources are highly autonomous, dynamic and heterogeneous. This paper proposes a Grid transaction service (GridTS) and coordination algorithms that manage short-lived and long-lived...
This paper mainly research the probabilistic planning problems based on the creating or destroying objects. Firstly, a new definition on mutex inference is given, because the objects can be created or destroyed and the actions are uncertainty. We adopt the thought of transforming object into proposition. Secondly, we propose a new concept of concurrent action set and give the algorithm for creating...
Monolithic dc/dc converters provide a small solution size for the power management industry by integrating power switches with pulse width modulation (PWM) controllers. On the other hand, partial or all key control loop design parameters are hidden inside a black box. A practical way to identify the values of those parameters not only provides an effective tool for a system designer to retrieve information...
With the development of digital and waveform micro-seismic emission (ME) technology, it makes the recognition of ME source possible. Because of the noise and complex of ME signal transmission characteristic, the recognition of ME source is very difficult. In order to resolve this problem, the new method of multi-sensor data fusion on decision level was presented. Using the data from each sensor in...
GridFTP is a secure and efficient data transfer protocol in Grid. This paper proposes a test scenario for the GridFTP traffic features. Firstly it gives a general description of the testbed traffic from the aspects of packet characteristics and throughput distribution; then analyses the self-similarity features of the GridFTP traffic and their decomposed data flows both in WAN and in LAN. Analysis...
The process parameters that influence the performance of nano-size hydroxyapatite powder such as purity, granularity, and crystallinity include the mass ratio between Ca(NO3)2middot4H2O and (NH4)2HPO4, the PH value of reaction liquid, the temperature of sintering and the time of heat preservation. Orthogonal experiments with different process parameters are designed; experiments were carried out with...
The thermodynamics analyse of systems of Ca-P2O5-H2O and Ca(OH)2-H3PO4-H2O in the water solution when synthesize hydroxyapatite using Sol-gel method was made. The relation figure of distributing coefficient of phosphorous acid and all the phosphorous acid radical hydroniums in the water solution and PH value and the relation figure of lg[Ca]T and PH value were drawn, and the appropriate condition...
The cylindrical overlapping piezoelectric transducer is mainly composed of the three cylindrical piezoelectric ceramics, bracket, metal bolt, rubber, waterproof layer and output cable. The transducer model was established, separately in the air and water, with ANSYS to calculate the vibration frequency and conductance .The transmitting response and directivity in water were also calculated .The results...
At present, the research on planning system mainly focuses on searching a valid planning in the single domain and closed environment, such as the classical planning problem, rocket problem, and briefcase problem and so on. However, in the practical problem with adversarial action planning, this kind of classical planning theory is difficult to apply to complicated and diverse world condition, such...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.