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Luo Y.L.,Changde Vocational Technical College
Applied Mechanics and Materials | Year: 2014

Aimed at the quality issues of current network streaming media playing, it manages by introducing a streaming media caching mechanism to help improve the playing effect. But the cached playing also has its own deficiencies, so here combines the adaptive control algorithm with the caching mechanism to solve this problem. It firstly introduces the streaming media service, and analyzes the transmission process of streaming media and adaptive media playing in detail; secondly analyzes the adaptive control algorithm of streaming media caching from the principle and design of reserving cache algorithm and the balance frame dropping algorithm; and finally gives the core code of the algorithm. This paper has a certain reference value to the video website developers and computer system architecture researchers. © (2014) Trans Tech Publications, Switzerland.

Luo Y.L.,Changde Vocational Technical College
Applied Mechanics and Materials | Year: 2014

With the development of society, urban traffic problem attracts more and more attention from people. In view of the current traffic worsening, it hopes to effectively shunt the travelers by the urban traffic navigation system, to ease traffic pressure. This article first analyzes the genetic algorithm in detail, and describes its principle and implementation steps; then specifically analyzes the overall design and design principle of the urban traffic navigation system; and at last gives part of the core code of the system. This paper has a positive effect for the software developer and city traffic management personnel. © (2014) Trans Tech Publications, Switzerland.

Qiao N.,University of Science and Arts of Iran | Tang J.,Changde Vocational Technical College
Advanced Materials Research | Year: 2012

Aiming at the dark printed circuit board photoelectric image that contains noise acquired by CCD system, the edge detection method by using multi-scale wavelet transform is proposed. Firstly, ts basic principle is analyzed in detail, and the simple physics explanation and formula deduction are given. Secondly, the idiographic detection steps are given. Finally, the results of experiment verify the correctness of theory analysis. © (2012) Trans Tech Publications, Switzerland.

Zhou X.-Y.,Changde Vocational Technical College | Rong C.,Hunan Normal University | Lu T.,Beijing Kein Research Center for Natural science | Zhou P.,Lanzhou University | Liu S.,University of North Carolina at Chapel Hill
Journal of Physical Chemistry A | Year: 2016

How to accurately predict electronic properties of a Columbic system with the electron density obtained from experiments such as X-ray crystallography is still an unresolved problem. The information-theoretic approach recently developed in the framework of density functional reactivity theory is one of the efforts to address the issue. In this work, using 27 atoms and 41 molecules as illustrative examples, we present a study to demonstrate that one is able to satisfactorily describe such electronic properties as the total energy and its components with information-theoretic quantities like Shannon entropy, Fisher information, Ghosh-Berkowitz-Parr entropy, and Onicescu information energy. Closely related to the earlier attempt of expanding density functionals using simple homogeneous functionals, this work not only confirms Nagy's proof that Shannon entropy alone should contain all the information needed to adequately describe an electronic system but also provides a feasible pathway to map the relationship between the experimentally available electron density and various electronic properties for Columbic systems such as atoms and molecules. Extensions to other electronic properties are straightforward. © 2016 American Chemical Society.

Jieli L.,Changde Vocational Technical College
WIT Transactions on Information and Communication Technologies | Year: 2014

Some defects in the Visual FoxPro itself lead to its low safety performance and not powerful function. To make up the defects, and to play better the advantages of the database management and programming aspects, the system clarifies the operational application of the ACCESS database under the environment of Visual FoxPro. This article first details the comparison of the similarities and differences between Visual FoxPro and ACCESS, and then describes the main problems occurring in the ACCESS database operation in a Visual FoxPro environment, and finally focuses on the implementation methods of ACCESS database operations on the Visual FoxPro environment. © 2014 WIT Press.

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