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Zhao S.,Zhengzhou Institute of Aeronautical Industry Management | Xu Y.,Vocational and Technical College | Liu Y.,Zhengzhou Institute of Aeronautical Industry Management
ICIC 2010 - 3rd International Conference on Information and Computing | Year: 2010

In this paper, we propose a novel palmprint verification scheme named as Orthogonal Code based on multiple 2D Orthogonal Gabor Phase feature. A palmprint image contains various features with multiple orientations, so only a single orientation in the palmprint can not distinguish a subject well. The 2D Orthogonal Gabor filters with different orientations are employed to extract texture information and a phase-coding scheme is used to represent the palmprint. At the matching stage, Hamming distance is used as a similarity metric. The experimental results of verification on Hong Kong Polytechnic University Palmprint Database show that the proposed approach can operate at a high genuine acceptance rate of 99.3% and a low false acceptance rate of 4×10-5%, which outperforms the state-of-the-art Competitve code, OrdinalCode and Robust Line Orientation Code. © 2010 IEEE.


Wang Y.-J.,Vocational and Technical College | Luan X.-J.,Vocational and Technical College
International Asia Conference on Industrial Engineering and Management Innovation: Core Areas of Industrial Engineering, IEMI 2012 - Proceedings | Year: 2013

In this paper, we analyze the existing problems of the green supply chain management in coal chemical enterprise, and then, we try to dissect reason and design a construction scheme about the green supply chain management of a chemical enterprise. © Springer-Verlag Berlin Heidelberg 2013.


Xie W.,Vocational and Technical College
Proceedings - International Conference on Communication Systems and Network Technologies, CSNT 2012 | Year: 2012

This paper provides a algorithm of digital watermarking in MP4 Music. Cooperating the characteristic of audio and using the energetic variation for three next sections to seek for the new appropriate method. The action of embedding digital watermark will not affect the quality of audio. Furthermore, this embedding will not only provides enough robustness to bear several kinds of attacks, including MP4 compression, low-pass filter, normalization, D/A converter, and clipped signal but also can keep the completeness of digital watermark. © 2012 IEEE.


Wu C.,China University of Mining and Technology | Zhuang Q.,China University of Mining and Technology | Wu Y.,Vocational and Technical College | Tian L.,China University of Mining and Technology | And 2 more authors.
Materials Letters | Year: 2013

Fe3O4 hollow spheres/carbon nanotubes (Fe 3O4-HSs/CNTs) composites were synthesized by a facile solvothermal method, without any template. Compared to the Fe3O 4 hollow spheres (Fe3O4-HSs), the Fe 3O4-HSs/CNTs composites showed a better suitability as anode materials for lithium-ion batteries. After 70 cycles, the Fe 3O4-HSs/CNTs composites exhibited a reversible capacity of 1153.8 mAh g-1 at 0.1 A g-1 as well as good cycling performance. When the current density was 0.4, 0.7 and 1.0 A g-1, the composites still displayed reversible capacity of 1038.4, 848.8 and 778.5 mAh g-1, respectively. In addition, the Fe3O 4-HSs/CNTs composites showed improved long-life cycling performance even at high current. © 2013 Elsevier B.V. All rights reserved.


Wu C.,China University of Mining and Technology | Zhang H.,China University of Mining and Technology | Wu Y.-X.,Vocational and Technical College | Zhuang Q.-C.,China University of Mining and Technology | And 2 more authors.
Electrochimica Acta | Year: 2014

Fe@Fe2O3 core-shell nanoparticles anchored on graphene (Fe@Fe2O3/graphene hybrid material) have been firstly synthesized by using a hydrothermal reaction followed by an in situ thermal reduction. The morphology and structure of the Fe@Fe2O 3/graphene hybrid material are characterized by SEM, XRD, XPS, TEM, EFTEM and EDS, which show that the nanoparticles with diameters around 100 nm are homogeneously anchored on the surface of graphene sheets to form three-dimensional (3D) porous structure, and the shell region with several nanometers is amorphous Fe2O3. The galvanostatic cycling test shows that the Fe@Fe2O3/graphene hybrid material displays a reversible charge capacity of 959.3 mAh·g-1 up to 90 cycles at a current density of 100 mA·g-1, which is 86.4% retention of the first charge capacity. In addition, the Fe@Fe2O 3/graphene hybrid material exhibits an excellent long-life cycling performance at high currents. Furthermore, the first lithiation process of Fe@Fe2O3/graphene electrode is studied by electrochemical impedance spectroscopy (EIS) at different potentials. According to the results of equivalent circuit analysis, there appear three semicircles respectively representing the Li-ion migration in solid electrolyte interface film (SEI film) and contact problems, electrical conductivity and charge transfer in the first discharge process, and the change of kinetic parameters for lithiation process of Fe@Fe2O3/graphene electrode as a function of potential is discussed in detail. © 2014 Elsevier Ltd.


Miao Y.,The Academy of Management | Sheng Q.,Vocational and Technical College
Advanced Materials Research | Year: 2011

Nowadays, remarkable immolations and charges are taking place deeply and continuously in the marketing area the enterprise brand operation is a strategic problem of operation which relates to the enterprise's life. This article elaborated the creative meaning of the running of the business enterprise, and it emphasizes from establishing the brand operating, erecting the key of the brand operation, enhancing the key of the brand operation to carrying on the analysis of the brand value accurately and so on, in which it has a discuss about the problem of the design and the practice of the enterprise brand operation. © (2011) Trans Tech Publications.


Guan H.,Vocational and Technical College | Ren X.,Inner Mongolia University of Science and Technology
Advanced Materials Research | Year: 2013

One 150 ton converter of an iron and steel group occurred nodded phenomenon in the production process, the dynamic characteristics is poor. Initially be suspected that the converter exist "negative" torque steel. In order to clarify the changes of tilting torque in the steel process. apply Solidworks software,create 3D model of converter, then determine the Center of gravity position and calculate the tilting torque of the converter with the tilting angle changes. Solidworks software is parameterized 3D design software, can calculate quickly and accurately, has strong analytical processing capabilities. This paper made to calculate provide a simple method of calculation for converter equipment design and maintenance. © (2013) Trans Tech Publications, Switzerland.


Chen R.,South China Agricultural University | Chen R.,Vocational and Technical College | Yang Y.-S.,South China Agricultural University | Wu H.,South China Agricultural University
Proceedings - 2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012 | Year: 2012

A strategy of repeatedly inducing axillary bud formation from bud explants was tested for micro propagation of purple coneflower (Echinacea purpurea L.) of different gene dosages. It was found that explants of lower gene dosage required lower concentrations of cytokinin (BA) and auxin (NAA) to achieve higher propagation rate of axillary buds, and with the most suitable BA and NAA concentrations tested, haploid had much higher propagation rate than tetraploid, while the propagation rate of diploid was much closer to that of haploid than to tetraploid. By the established culture protocol, about 1,500,000 haploid, 1,200,000 diploid and 600,000 tetraploid plantlets can be theoretically propagated from one explant in one year. © 2012 IEEE.


Liu H.-S.,Vocational and Technical College
International Journal of Theoretical Physics | Year: 2013

We investigate single-particle coherence and spin squeezing in four-qubit phase state governed by an one-axis twisting Hamiltonian. In particular, we are interesting in the dependence of single-particle coherence and spin squeezing on the nonlinear interaction. It is shown that single-particle coherence and spin squeezing parameter only depend on the nonlinear interaction and they are periodic function of nonlinear interaction. © 2013 Springer Science+Business Media New York.


Liu H.-S.,Vocational and Technical College
International Journal of Theoretical Physics | Year: 2013

We investigate phase coherence and spin squeezing of a collective spin governed by one-axis twisting Hamiltonian with decay. Here we are interested in the dependence of phase coherence and spin squeezing parameter on the decay. The analytical expressions of phase coherence and spin squeezing parameter are obtained. The stronger decay can induce a stronger spin squeezing, and the squeezing can maintain a longer time interval. Moreover, more squeezing can be achieved by increasing the number of particles. © 2013 Springer Science+Business Media New York.

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