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A study on soft water attack resistance of concrete Liu Dongmei (College of Hydraulic & Environmental Engineering, Three Gorges University, Yichang 443002 China) Liudongmei926@sohu.com Liu dongmei （1977-）,female, doctor, lecture, main research the property of hydraulic materials.
(3) With seepage time prolonged, the structure of concrete became compact further with the hydration of gel materials in concrete.
Journal of hydroelectric power,2001,1:31-39 [2] Fang kunhe, ruanyan, zengli.
Journal of hydroelectric power,2001,(2):8-16 [3] Li xingyu, fang kunhe.
Journal of Yangtze river science research institute,2003,(3):27-30

Research on Uncertainties Influenced the Mixed-Model Assembly Line Balancing Yu-jie Zheng1, a, Kai-hu Hou2,b ,Jin-yuan Zhong3,c and Wei-zhen Liao4,d 1,2,3,4Department of Industrial Engineering, Kunming University of Science and Technology, Kunming, P.
Suppliers provide the raw materials to enterprises.
Suppliers’ uncertainties include uncertainties in the prices of raw materials, the quality of raw materials, the arrival time of raw materials, the replenishment’s reliability and quantities’ uncertainties.
The related activity concept in assembly line balancing: International Journal of Production Research Vol.23 (1985), p. 503-421
[8] Yangjun Luo, Zongzhan Gao,Zhufeng Yue, Bounded mixed uncertainties structure reliability optimum: design of Aeronautics: Aviation Journal Vol.32 (2011), p. 1058-1067 (In Chinese).

Therefore the use of botanical garden materials has certain restrictions.
The introduction of some plant materials from warm area, research of its cold resistance and making its live through the winter in Harbin has realistic significance.
Materials and methods Plant Material growth conditions Hosta undulate, Hosta plantaginea and Hosta plantaginea ‘Rosea’, planted in ShenYang city without aberrance for three years, were transported in plastic bags to the laboratory in Harbin.
Journal of Agro-Environment science. 1998, 40(2): 118~125 [4] Trenholm L.E., Dudeck A.E., Sartain J.B., Cisar J.L.
Crop Science. 1998, 38: 168-173 [5] Zhang JZH.

Journal of Wuxi Institute of Commerce.
Journal of Transducer Technology.
Optoelectronic and Microelectronic Materials Devices.
Huazhong University of Science and Technology, 2008.
Materials Science Forum.

Goswani, “Carbon nanotubes – Production and industrial applications,” Materials & Design, Vol. 28, pp. 1477-1489, 2007
Santucci, “Carbon nanotubes as new materials for gas sensing applications,” Journal of the European Ceramic Society, Vol. 24, No. 6, pp. 1405–1408, 2004
Yeow, “A review of carbon nanotubes-based gas sensors,” Journal of Sensors, Vol. 2009, Article ID 493904, 24 pages, 2009
Hash, “Carbon nanotube growth by PECVD: a review,” Plasma Sources Science Technology, Vol. 12, pp. 205–216, 2003
Lee, “Multiwalled carbon nanotube growth mechanism on conductive and non- conductive barriers,” Advanced Materials Research, Vol. 403-408, pp. 1201-1204, 2012

Based on the test, the finite element models involving geometric and materials nonlinearity were presented.
Journal of Chang’an University (Natural Science) Vol. 30 No. 1 (2010) P. 63-66, in Chinese
ACI Structural Journal (2004) P. 812-820
ACI Structural Journal (2001) P. 525-536
ACI Structural Journal (2011) P 61-70

The materials assumed elastic-perfectly plastic solid and we were approximated by Swift’s eq., , based on quasi-static tensile test result.
Figure 2 indicates that plasticity buckling happened at dynamic crush in all materials and elastic buckling happened at quasi-static crush.
References [1] Setiyono, H.: International Journal of Mechanical Sciences, Vol. 50 No. 8 (2008), pp. 1280-1291
[2] Kassar, M., Pan, C.L., Yu, W.W.: Journal of Structure Engineering, Vol. 118 No. 11 (1992), pp. 3151-3168
[3] Natori, K., Watanabe, K., Tanaka, T., Imaida, Y.: Key Engineering Materials, Vol. 473 (2011), pp. 376-381

One of the important factors for the development and optimization of a material is by knowing thermal characteristic properties of these materials [4-7].
Materials and methods The material used was procured from the process of tapping dammar trees (Shorea Javanihca k. et v).
[2] Rosnah Zakaria and Azizah Hanom Ahmad, The Performance of Modified Silicone-Dammar Resin in Nanoindentation Test, International Journal of Advanced Science and Technology 42 (2012) 33-43 [3] Lakerveld, A van, Price Determination and Upgrading Within the Damar Trade Chain, Thesis, International Development Studies, Amsterdam, 2007
[5] Tran Thai Bao, Yunkyum Kim, Joonho Lee and Jung-Goo Lee, Preparation and Thermal Analysis of Sn-Ag Nano Solders, Materials Transactions, 51(12) (2010) 2145–2149
[8] Grega Klancnik, JozeF Medved, Primoz Mrvar, Differential thermal analysis (DTA) and differential scanning calorimetry (DSC) as a method of material investigation, RMZ – Materials and Geoenvironment, 57(1) (2010) 127–142.

Material and Method Raw Materials.
Materials Science and Engineering C. 2009; 29: 1375-1379 [4] Haiyang Zhang, Jin Liu, Zhiqiang Wang, Xiaoning Lu.
Fibrous Materials. 2016 [12] Diana P.
Materials Science and Engineering. 2020; 886: 012061 [14] Eylem D.
Materials Science Forum. 2022; 1067:113–8. https://doi.org/10.4028/p-8oo3r9.

Silica (SiO2) is a row material available in abundance in Jordan.
Engineering Journal, Volume 17(1).
Journal of Control Science and Engineering.
International Journal of Advanced Computer Science and Applications, Vol. 7, (6), 381- 389
Journal of Advanced Science and Engineering Research, Vol. 2(4) September 232-251