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To realize the high control efficiency and the low energy consumption for the present drying oven control on the condition of a great number of complex control parameters and the single control method, this paper presented a drying oven control method on the extension control. First the drying oven basic element model was built including the control features. Secondly, the correlation calculation...
Support vector machine (SVM) is a novel machine learning method based on statistical learning theory (SLT). SVM is powerful for the problem with small sample, non linear and high dimension. A multi-class SVM classifier is applied to predict the coal and gas outburst in the paper. In this model, the dominant factors are the input vectors and the degree of outburst danger is divided into four types:...
The stress filed and deformation of the slope could be calculated by FEM method, but the coefficient of safety could not be obtained from the results. It is relatively straightforward to get the coefficient of safety when the critical slip surface (CSS) is clear based on stress filed, while it is complex when the CSS is unknown. However, there are several methods to solute the problem. Such as displacement...
With the development of technology, the more sensor and actuator are used on the building structure control, the more fault probability will become. This study introduces hierarchical decentralized fault tolerate controller design methods, which are constructed for sensor and actuator failures, based on Lyapunov approach. And it constructs cantilever active control experiments by Matlab/xPC control...
This research aims at improving efficiency and variety of shoe-lasts modeling in the footwear industry. A novel digital method is proposed for customized shoe-last modeling based on the analysis and research of human foot features and the shoe-last design theory. The method uses 3D foot data measured from human feet, combines with shoe-last design specifications and the force analysis of feet-shoe...
In order to fast generate candidate frequent itemsets, avoid redundant calculation and reduce the time of scanning database, this paper proposes an algorithm of mining frequent itemsets based on digit sequence, which is suitable for mining long frequent itemsets. The algorithm firstly turns all transactions into digital transactions by binary, and then computing digit sequence of every attribute item...
Space rendezvous is the foundation of space operation and application. In this paper, mission planning of long distance guidance stage for space rendezvous is discussed. Two-impulse rendezvous is solved by analyzing Gauss problem. Based on Battin-Vaughan algorithm, ergodic calculation is performed for different combination of initial position and transfer time. To carry out the mission planning for...
Today, Geographic information system (GIS) has been utilized in a lot of fields, and data is the soul of GIS. At the same time there is plenty of information and data in the paper map. How to make use of information from paper map is worth of studying. Map recognition can play a role in this problem. Hence, this paper mainly researches on how to effectively recognize area from map image and a corresponding...
This paper describes the structure and the control mechanism of network layers based on wireless communication technology, and introduces the control requirements and realization methods for the automatic control modules. The paper first describes the realization of controlling the frequency variable system in the control unit and its serial communication with GPRS communication module. It then provides...
Mobile visual search business has been prospering since research break-through on content based image retrieval (CBIR) and continuous improving mobile technology. In such search application, user takes photo and uploads photo to server. Retrieval is done at the server side and user gets result from the server. Currently search applications have difficulties. 1) Mobile photos have relatively low qualities,...
This paper describes the application and experimental method of acoustic emission (AE) for the multidirectional filament wound composite material tubes (MFWCMT) .Under compressive fatigue loading and presents the features of acoustic emission during compressive test process for MFWCMT. The experiment results show that the AE parameters can elaborate the failure mechanism of inner deformation of the...
It is common to control the frequency-variable air conditioner by using PED controller. However, the paper designs an algorithm for frequency-variable air conditioner by using neural networks. The neural network frame has the following characteristics: three-layer frame, two inputs, one output, while the hidden middle layer is designed with five nodes, input layer with linear signal, output layer...
In order to solve the heading error problem for autonomous navigation of unmanned vehicles in urban area, the concept of the differential magnetic compasses (DMC) was proposed. An improved algorithm based on the DMC for robust heading value was proposed. An integrated navigation system based on the DMC and GPS was designed. An adaptive algorithm for heading information based on the federated Kalman...
This article addresses the completion time of a job processed on a machine subject to the sequence stochastic breakdowns described by Birge et. al (1990). I present an general analysis on the first and second moments of the completion time. Let r and p denote respectively the starting time and processing time of the job. My contributions can be roughly stated as follows. (A) For the resume case, if...
The network service providers always prepare hardware design, maintenance and upgrading action plan via experience. This usually leads to large amount of waste resources. Although many complex models have been introduced into the research held of high performance network QOS evaluation, it is hard for such method to be applied into production environment because of the random and complex character...
The classical bilateral filtering is a simple and effective non-iterative image denoising method in spatial domain which can smooth the noisy images while preserving edges well. To further improve the denoising performance, an image deonoising algorithm via doubly bilateral filtering is proposed. We first use the bilateral filtering to get the pilot image. Then, using the information of the pilot...
Aiming at the problem of the LCD controller accessing the frame memory exiting in the design of LCD controller, on the base of analyzing and comparing the two familiar solving schemes, a new one is put forward. A new type LCD controller is designed and realized by applying the scheme. The problem of conflict between reading and writing frame cache is solved through the time-division multiplexing technology;...
This paper presents a discrete cosine transform image compression method which is based on genetic algorithm. The discrete cosine transform image compression theory is analyzed. The optimal threshold of discrete cosine transform compress can be obtained by using of the method of GCV criteria based on genetic algorithm. In order to avoid the difficulty of confirming compression, threshold selection,...
Based on the TAM model, the objectives of this study are to explore organizational roles' differences in e-learning acceptance. A survey taken from 10 financial companies which had implemented e-learning system shows that managers perceived usefulness in e-learning are stronger than perceived ease of use and employee perceived usefulness and ease of use are stronger than managers. The perceived usefulness...
In model-based diagnosis, the candidate diagnosis results are generally by all minimal hitting sets for the collection of all conflict sets. In this paper, a new method is proposed to solve the problem by the establishment of dependency matrix of conflict sets cluster, the use of the concept of covered-hit, which can convert the problem for computing the hitting sets to set cover problem. And then...
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