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The practical training is one of the key measures of quality technical vocational training of skilled personnel. The paper studies the training base construction method, explores new ideas and communications technology professionals in vocational training through a school-enterprise cooperation, which forms a new type engineering practice center and communications technology professional development...
This paper first introduces the safety rule which standardizes static software testing based on technology of source code analysis and lists a few big problems which can be tested by the technology. These problems can be categorized as memory management, uninitialized variables, null pointer exception, array access violation and exception and buffer overflow. Besides, this paper gives a static test...
Focus on the risk management for the modern weapon equipment development projects, the intuitionistic fuzzy group decision-making ranking process is proposed in this paper to achieve a further risk ranking for the risks with the same risk exponent, making the ranking results more accurate and scientific. In this process, assessments are made on the risks' occurring possibility and the consequences...
In the centralized multi-sensor system, there is often a problem that how to remove measurements used early from the current state estimation, then re-calculate the current state estimation. The interacting multiple model (IMM) algorithm with removing old measurement presented by Bar-shalom is based on the standard IMM algorithm and Bl1 algorithm. However, in the standard IMM algorithm, the combination...
To the problem of soft-sensing the component concentrations of sodium aluminate solution, a soft-sensor software was designed and developed based on the mechanism and data-driven model. It included three parts which were control software, monitoring software and model calculation software. Industrial experiments showed that the software was simple to use, real-time, GM, and it was the foundation for...
The dynamic characteristic of traditional controllers is not good enough especially when DC voltage sags or load changes abruptly. Plus, static error would be generated if the input is an AC signal. In this paper, PR controller is used to solve above problems. This article presents the transfer function of PR controller by theoretical analysis, At last, both simulation and experiment achieved the...
It is greatly significant to detect harmonic accurately and effectively for improving the quality of electric energy in the power system. Actually, much noise exists in signal besides harmonics, inter-harmonics, so the key is how to detect harmonic signals from the complex power system. According to the analysis of harmonic and noise, a new method is proposed in the paper to detect harmonic based...
A Kind of LED lighting system using AD7755, micro controller and Ethernet drives is presented, to control multiple LED in remote place and detect power consumption of the system. The hardware and software designs are also described. The system can not only adjust the three-color LED light group brightness of each node through host computer, but also get the energy consumption data of each node in...
PCI Express is a high-speed point-to-point transmission bus interface that widely used. but a standard PCI Express system starts to traversal the bus topology after 100ms from the power on and to make sure the equipment that ready to response the configuration request. This becomes a difficult task due to the ever-increasing configuration memory size of each new generation of FPGA, such as the Xilinx...
Mi200E is a high-performance integrated fixed-signal Power Line Carrier (PLC) chip produced. This chip utilizes complex signal modulation method to achieve superior performance in power line channel with dramatic signal attenuation changes. There is no integrated MCU but SPI interface inside, which makes it more convenient to be connected with other MCUs. with the accelerated development and increased...
E-book readers have the inherent advantage of affording learners both mobility and convenience. They can be considered ideal pedagogical tools for supporting learners¡¦ reading activities. In this study, the reading strategies SQ3R (Survey, Question, Read, Recite and Review) with the guidance mechanism were integrated into the e-book reading environment for assisting learners in their reading processes...
Based on the proposed electric payment-channel's operation and the requirement of present power company's need, this paper further analysis the true payment data which come from a certain area and according to the optimal method it puts forward a best optimized payment scheme. This study aims at reasonablely planning and scientifically managing the existing electric payment-channels, which can deals...
Applying the variable transformations and the improved Hirota method, two types of the N-soliton solutions, namely, smooth and singular N-soliton solutions are obtained for a nonlinear dispersive long wave system. The solutions can be expressed explicitly. Furthermore, the evolution processes are investigated for the N-soliton solutions. The result shows that the solitons will fission with time variable.
The parallel robot system, consisted of parallel motion mechanism with multiple linkages, has the advantages of high rigidity, strong bearing capacity and so on. To the control problem of parallel robot with multi-variables, non-linearity and strong coupling, a novel sliding mode control method which uses RBF neural network to optimize its switching gain is proposed for a 2-DOF redundant parallel...
As the key point of the ontology research field, concept similarity computation has been widely used in the automatic question-answering systems. This paper firstly analyzes the existing concept similarity computation algorithm which is based on the semantic distance, and then proposes a new computation algorithm formula by modifying and adding some factors which can affect the accuracy of concept...
Subsoiler is the key parts of 1HS-1.2 cultivation Subsoiler Mechanism, application of Pro/E design, 3d parametric finite element modeling of its design method, illustrates the design analysis of structural parameters of the subsoiler satisfy the intensity and rigidity.
Based on the view of cycle life in industrial cluster, this article elaborates the industrial cluster of Jinzhou County Textile in Hebei Province. This article confines four characteristics including scale, industrial net, industrial innovation, and industrial threshold to identify the industrial development by researching amount documents and some scholar's suggestion. Through analyzing the investigated...
The construction of government website is an important content of the construction of E-Government, which strengthens the communication of government and public and increases the efficiency of goverment and effective means showing the good image of goverment. The government portal website construction is a systemic project based on brand vision, it needs a series of supports of innovative construction...
Based on the view of cycle life in industrial cluster, this article elaborates the industrial cluster of Jing County rubber tube in Hebei Province. This article confines four characteristics including scale, industrial net, industrial innovation, and industrial threshold to identify the industrial development by researching amount documents and some scholar's suggestion. Through analyzing the investigated...
Since the development of agricultural industry clusters are affected by many factors, how to choose the main influencing factors has become an important research on agricultural industry clusters. By screening and classifying numerous factors, we construct the influencing system of factors in agricultural industry clusters, and in accordance with DEMATEL method, we figure out the comprehensive correlation...
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