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Possibility Theory on Economic Problems Tian Huizhu1, a, Dong Zhongqi1, b, Huang Weiqing1, c, Li Wenxin1, d,Yang Ying1,e 1Hebei College of Industry and Technology, Shijiazhuang 050091, China aemail: tianhuizhu88@163.com, bemail:dongzhongqi@aliyun.com,chuweqi@126.com, dlwx6401@163.com, e amm417@163.com (Corresponding author:dongzhongqi@aliyun.com) Keywords: Mathematical expectation; random variable; economic activity; maximum profit Abstract: A random phenomenon is so common in human economic activities, during the process of researching and revealing the random phenomena, as a theory of probability, Mathematical expectation has been widely used in the field of social economy.
[3] Rong Yang, Probability theory and mathematical statistics, Qinghua University Press, Beijing, 2005
[5] Yinghui Tian, Economic and applied mathematics - probability theory and mathematical statistics study counseling, Higher Education Press, Beijing, 2002

Tian, Y.L.
Tian, Chem.
Yang, X.
Tian, S.
Yang, J.K.

Tian and S.
Yang: Chem.
Yang, B.
Tian, B.
Tian: Chem.

Tian, F.R.
Zhu, S.P, Yang, J.L.
Tian, M.H.
Yang, J.L.
Tian, D.

References [1] J.Tian, Z.Xie: Dynamic Contact Stiffness of a Vibrating Rigid Sphere Contacting a Semi- Infinite Viscoelastic Transversely Isotropic Solid.
Acta Mechanica Solida Sinica, Vol.21(2008), No.6,p.1-7 [2] J.Tian, W.X.Yang, and X.Y.Su: Transient Elastic Waves in a Transversely Isotropic Laminate Impacted by Axisymmetric Load.
International Journal of Solids and Structures, Vol.29(1992), No.19, p.2355-2367 [4] J.Tian, U.Gabbert, H.Berger, and X.Y.Su: Lamb Wave Interaction with Delamination in CFRP Laminates.
Key Engineering Materials, Vol. 348-349(2007),p.521-524 [6] Li Hongliang, Li Hong,Yang Yong:Dynamic Stress Intensity Problem of SH-Wave by Double Linear Cracks near A Circular Hole.

References [1] Y Wang, W Tian, Y Yang.
[2] W Tian, Y Wang, Y Yang.
[3] W Tian, Y Wang, T Zhang, et al.
[5] D Wang, Z Tian, L Shen, et al.

Two algorithms of defect detection about digital radiograph image Kai Tian1,a, Jiarong Shi2,b, Chunxiao Yang3,c, Feiyu Ji4,d 1,2,3,4School of Science, Xi'an University of Architecture and Technology, 710055, China atkai610@126.com, bshijiarong@xauat.edu.cn, cchunxiao_yang@aliyun.com, dfeiyueji@163.com Keywords: DR image; image segmentation; defects detection; CV model; region growing.
References [1] SHEN Gong-Tian, LI Li-Fei.
[6] TIAN Kai, ZENG Li, LIU Ling-Hui.
[9] TIAN Kai, SHI Jiarong.

Tian, Z.Z.
Tian, Z.Y.
Tian, Z.Y.
Tian, P.K.
Yang and W.B.

Tian and S.J.
Yang: Chem.
Tian and S.J.
Yang, J.K.
Yang: J.

Tian, C.C.
Tian, Y.
Tian, C.C.
Tian, L.
Tian, J.