期刊：
Applied Mechanics and Materials,2012年157-158:1008-1011 ISSN：1660-9336
通讯作者：
Zhao, Huihuang
作者机构：
[Chen, Jianzhen; Zhao, Huihuang; Sun, Yaqi] Hengyang Normal Univ, Dept Comp, Hengyang 421008, Hunan, Peoples R China.;[Zhao, Huihuang; Wang, Yaonan] Hunan Univ, Dept Control Sci & Engn, Changsha 410082, Hunan, Peoples R China.
通讯机构：
[Zhao, Huihuang] H;Hengyang Normal Univ, Dept Comp, Hengyang 421008, Hunan, Peoples R China.
会议名称：
2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)
会议时间：
2011-12-27
会议地点：
香港
会议主办单位：
[Zhao, Huihuang;Sun, Yaqi;Chen, Jianzhen] Hengyang Normal Univ, Dept Comp, Hengyang 421008, Hunan, Peoples R China.^[Zhao, Huihuang;Wang, Yaonan] Hunan Univ, Dept Control Sci & Engn, Changsha 410082, Hunan, Peoples R China.
会议论文集名称：
2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)论文集
关键词：
Human face;Three-dimensional reconstruction;Shape from shading;Wavelet packet transform
摘要：
Human face three-dimensional (3D) reconstruction is a challenging problem. In this paper, we propose a human face fast- 3D- reconstruction method based on image processing with a single image. Shape from shading (SFS) is chosen to reconstruct the human face. First, SFS theory is introduced. It has the advantage of fast 3D reconstruction and only need a single image. Secondly, because the noise will affect the 3D reconstruction result greatly, wavelet transform and wavelet packet transform are introduced and used in image denoising respectively. The experiment has shown that the method based on wavelet transform produces the best denoising result than wavelet packet transform. At last, a human face 3D reconstruction algorithm based on a single image is proposed. The experimental results show that a human face 3D model can be reconstructed in fast by proposed algorithm.
作者机构：
Key Laboratory of Functional Organometallic Materials,Hengyang Normal University,College of Hunan Pr;State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sci
会议名称：
The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)
会议时间：
2010-06-18
会议地点：
成都
会议论文集名称：
The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)论文集
摘要：
Hydraulic conductivity of aquifers is one of important hydrogeological parameters in the seawater-freshwater field, which has a great influence on the scale and extent of seawater intrusion. Columns were subject to a pulse of seawater followed by fresh water or brackish water. Outflow rates and changes in hydraulic head as well as electric conductivity and particle concentrations were monitored over time. Permeability decrease occurred and no particles were found in the outflow when seawater was flushed by fresh water. However, when the concentration of the inflow solution for this replacement decreased gradually, particle releases occurred and permeability also decreased. Results indicate that there exists a distinct variation of permeability of aquifer media in the seawaterfreshwater interface, namely a critical value existing in those experiments. The analysis of the experiments suggests deflocculation and release process of illite are the main factors of permeability reduction of sand columns.
期刊：
IET Conference Publications,2012年2012(616 CP):1-6
作者机构：
[Zhao, Z.] College of Electrical and Information Engineering, Changsha Uni. of Science and Technology, China;[Tong, X.J.] Dept. of Mathematics and Computing Science, Hengyang Normal University, Hengyang 421002, China
会议名称：
9th IET International Conference on Advances in Power System Control, Operation and Management, APSCOM 2012
会议时间：
November 18, 2012 - November 21, 2012
会议地点：
Hong Kong, China
会议论文集名称：
9th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2012)
关键词：
wind power generation;economic dispatch;conditional value-at-risk;level function method
摘要：
Wind power is considered as one of the most promising and fastest growing renewable energy due to its low generation cost and the minimum environmental impact. However, with the features of randomness and non-scheduling, which brings risks to the operation stability and dispatch security of power system incorporating wind power. Due to the randomness of wind power and operation risk of power system, conditional value-At-risk (CVaR) theory is introduced in this paper, in order to quantify the uncertain risk of power system incorporating wind power. To characterize the security of power system by insecure probability as a risk constraint, quantization of the risk function has been realized by Monte Carlo simulation, An optimal objective function is constructed by energy-saving object, Then construct the stochastic optimization dispatch model based on conditional risk value by penalized the previous objective function model. In this paper, the penalized stochastic optimization model is solved by level-function method. A subgradient variable is introduced in level-function method to solve the optimum solutions, and put them back to objective function to calculate the optimum value. An IEEE-30 bus system is tested in this paper to analyze the proposed methods of solving the stochastic optimization model under different confidence levels, different CVaR and different capacity of wind power, Result shows that the level function method have much less compute time than linear program method, it provides theoretical basis for an economic and security stochastic optimization dispatch of power system.
摘要：
With the difficulty of student employment is increasing, the correct occupation choice view has a crucial influence on their career. To know the occupation choice view of PE students and put forward the corresponding countermeasures according to the problems are very crucial in PE students' employment after graduation. By using the methods of literature, questionnaire survey and logic analysis, this paper analyzes the career views of college students in Physical Education Majors. The results showed that: sports education college students can appraise the current situation correctly, but being unclear and unable to know themselves correctly. The places they prefer to work tend to capital city and provincial-level city, and they are unwilling to go to the western regions. The main way to apply for a job of them is to take part in all kinds of examination and recruitment. They lack of a pioneering spirit and tend to pursuit stability. Their values are more and more utilitarian; the first factor they consider is choosing jobs with high welfare and benefits, the second is the personal prospect, which indicates their lack of scientific and clear career planning.
期刊：
Proceeding of 2012 International Conference on Information Management, Innovation Management and Industrial Engineering, ICIII 2012,2012年2:110-113
通讯作者：
Bu, H.(buhuabai@163.com)
作者机构：
[Bu, Shizhen; Bu, Huabai] Department of Economics, Hengyang Normal University, Hengyang, China
会议名称：
International Conference on Information Management, Innovation Management and Industrial Engineering
会议时间：
2012-10-20
会议地点：
Sanya(CN)
会议论文集名称：
2012 International conference on information management, innovation management and industrial engineering. v.2
摘要：
This paper has described the mechanism of excitation and diffusion about enterprise vulnerability in value network when the “sudden adversity” or “disaster” emerges in the internal environment or enterprise, the excitation model of vulnerability of complex system over enterprise value network describes the process that the event factor induces the impact of event, then Subsystem vulnerability is inspired by the impact of event, and eventually vulnerability of enterprise value network is inspired by subsystem vulnerability. In networks of cooperation, the organizational resources provided by each enterprise have mutual dependency and complementarities. and put forward three countermeasures how network participants take measures to extend the anti-barrier about the state of vulnerability diffusion in order to avoid the collapse of the entire value network and its sub-systems.
作者机构：
[Sun Yaqi] Hengyang Normal Univ, Dept Comp Sci, Hengyang 421008, Hunan, Peoples R China.;[Liu Yu] GuiLin Univ Technol, Coll Mech & Control Engn, Guilin, Peoples R China.
会议名称：
2012 International Conference on Electronic Packaging Technology & Hiigh Pachaging(2012电子封装和高密度封装国际会议(ICEPT-HDP2012))
会议时间：
2012-08-13
会议地点：
桂林
会议主办单位：
[Sun Yaqi] Hengyang Normal Univ, Dept Comp Sci, Hengyang 421008, Hunan, Peoples R China.^[Liu Yu] GuiLin Univ Technol, Coll Mech & Control Engn, Guilin, Peoples R China.
会议论文集名称：
2012 International Conference on Electronic Packaging Technology & Hiigh Pachaging(2012电子封装和高密度封装国际会议(ICEPT-HDP2012))论文集
摘要：
Research on SMT solder joint image segmentation can formed feedback information of the products assembly which is used to control and adjust the SMT assembly, and is useful to guide SMT to improve the quality and process of SMT products. In our study, we improve a novel approach of SMT solder joint image segmentation. During our method, the process has three steps. At first, the RGB image of solder joint is converted into HSV image. Second, we segment the solder joint by color domain 2D histogram threshold. Last, mathematics morphology processing is used to improve the segment accuracy. Experimental results show that the proposed method retains the structure of the solder joint images leading to an effective segmentation.
摘要：
The time-series is the collection of chronological varying numerical ordered by time. It has a wide existence of image data, text data, hand-written data and the brain scan data patterns. The present research of time-series concentrates on series data transformation, similarity search, forecast, classification, clustering and Visualization etc. Furthermore the trend forecast of time-series is the major basis of other related research. This paper analyses the existing time-series forecasting methods and puts forward a new time-series method based on principal component analysis. The example tests the validity of the method of other related research.
作者机构：
[Wei-Wei Fu; Fu-Xing Zhang; Dai-Zhi Kuang] Department of Chemistry and Materials Science,Hengyang Normal University,,Hengyang,Hunan,421008;[Wei-Wei Fu; Fu-Xing Zhang; Dai-Zhi Kuang] Key Laboratory of Functional Organometallic Materials of Hengyang Normal University,College of Hunan Province,Hengyang,Hunan,421008
期刊：
2012 13TH INTERNATIONAL CONFERENCE ON ELECTRONIC PACKAGING TECHNOLOGY & HIGH DENSITY PACKAGING (ICEPT-HDP 2012),2012年:1284-1286
通讯作者：
Zhao Huihuang
作者机构：
[Zhao Huihuang] Hengyang Normal Univ, Dept Comp Sci, Hengyang 421008, Hunan, Peoples R China.;[Sun Yaqi; Wang Yaonan] Hunan Univ, Dept Control Sci & Engn, Changsha 410082, Hunan, Peoples R China.
通讯机构：
[Zhao Huihuang] H;Hengyang Normal Univ, Dept Comp Sci, Hengyang 421008, Hunan, Peoples R China.
会议名称：
2012 International Conference on Electronic Packaging Technology & Hiigh Pachaging(2012电子封装和高密度封装国际会议(ICEPT-HDP2012))
会议时间：
2012-08-13
会议地点：
桂林
会议主办单位：
[Zhao Huihuang] Hengyang Normal Univ, Dept Comp Sci, Hengyang 421008, Hunan, Peoples R China.^[Wang Yaonan;Sun Yaqi] Hunan Univ, Dept Control Sci & Engn, Changsha 410082, Hunan, Peoples R China.
会议论文集名称：
2012 International Conference on Electronic Packaging Technology & Hiigh Pachaging(2012电子封装和高密度封装国际会议(ICEPT-HDP2012))论文集
摘要：
A extraction approach is proposed based on an image processing in order to improve the accuracy of 2D quality information extraction for surface mount technology (SMT) BGA(Ball Grid Array) solder joint of chip components. First, some appropriate image processing algorithms are utilized to eliminate the noise in the solder joint image. And a binaryzation image is obtained after character. Then the BGA Solder Joint 2D quality information extraction system is developed based on Visual C++, and the 2D quality information of solder joint circumference, area, void area, and diameter, are obtained. The experimental results have illustrated that the system can accomplish a good extraction result.
