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Journal of China Hydrology, 2010,30（5）：64-67.
Chinese Journal of Ecology, 2007，26（7）：1119-1124.
(In Chinese) [13] Zhijuan Lu, Hongping Pei, Wang Yong.Journal of Lake Sciences, 2008,20(6):802-805.
Journal of Geographical Sciences, 2009,64（11）：1342-1352.
Journal of Lake Sciences, 2004,16（3）:209-214.

Dovgan, Crack resistance of decorative composites, IOP Conference Series Materials Science and Engineering, 708 (2019) 012084. doi: 10.1088/1757-899X/708/1/012084 [5] R.S.
Batarshin, Y.G.Yevdokimova, Using thermal power plants waste for building materials, IOP Conference Series: Earth and Environmental Science. 87(9) (2018) 092010
Fediuk, Mechanical Activation of Construction Binder Materials by Various Mills, IOP Conference Series: Materials Science and Engineering. 125(1) (2016) 012019
Shorstova, Fiber concrete for 3-D additive technologies, Materials Science Forum. 974 (2019) 367-372
Paintwork materials.

Materials and Methods The data used in this paper includes the meteorological observation data of 4 acid rain monitoring stations (Shaowu Station, Fuzhou Station, Yong’an Station and Xiamen Station) during 2007 to 2012 in Fujian Province.
Journal of the Graduate School of the Chinese Academy of Sciences, Vol. 24-5 (2007), p. 667-673
Database from the acid rain network of China meteorological administration and its preliminary analyses, Journal of Applied Meteorological Science, Vol. 15-Supplement (2004), p. 85-94
Chinese Science Bulletin, Vol.55-8 (2010), p. 705-712
Environmental Science Trends, Vol. 2(2005), p. 25-27.

Characterization of "Green" Composites Reinforced by Cellulose Nanofibers Hitoshi Takagi1and Akira Asano2 1 Institute of Technology and Science, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan 2 Graduate School of Engineering, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan 1 takagi@me.tokushima-u.ac.jp Keywords: Cellulose nanofiber, Cellulose microfibril, Biodegradable composites, Natural fiber, Density, Flexural strength Abstract.
In the case of the "green" composites, natural fibers derived from bamboo [1], hemp [2], or flax [3] are being added to biodegradable resins to reinforce polymer matrix materials and improve the mechanical properties of resulting composites.
Experimental methods Materials A starch-based, dispersion-type biodegradable polymer (CP-300, Miyoshi Oil & Fat Co., Ltd.) was used as a matrix resin.
Ichihara: JSME International Journal, Series A, 47 (2004), p. 551

Calculation method To solve stable crack propagation problem, Paris provided the famous Paris formula in 1961, that is: (1) Here is fatigue crack length, is the loading cycle number，is the amplitude of stress intensity factor，, and are material constants.
(2) Pipeline material：20 # steel; Yield strength: 235MPa ; Tensile strength: 390MPa
Acknowledgement The results presented in this paper are based upon work supported by the National Natural Science Foundation of China under grants 50809003.
Feng: China Civil Engineering Journal.
Benderdouche: Materials and Design, Vol. 30 (2009), p.590

Self-assembly Synthesis of L-Isoleucine Assisted by POCl3 Dongxin Zhao1 , Li Ma1 Kui Lu1, 2* 1) School of Chemistry and Chemical Engineering Henan University of Technology 2) Department of Materials and Chemical Engineering Institute of Henan Engineering Zhengzhou 450052, China {dxzhao & mamarry}@haut.edu.cn ，luckyluke@haut.edu.cn Keywords：Oligopeptide, self-assembly, POCl3, L-Ile, ESI-MS Abstract.
Materials and Methods A.
Acknowledgment The authors would like to thank the financial supports from the Chinese National Science Foundation (No.20772023), Innovation Scientists and Technicians Troop Constrution Projects of Henan Province (No. 104200510022) and Innovation Scientists and Technicians Troop Constrution Projects of Zhengzhou City (10LJRC174).
International Journal of Peptide Research and Therapeutics, 2005, 11(2): 111-115.

The seismic damage feature of multi-story masonry building Multi-story masonry building belongs to early developed structure, according to its operating principle and material features, and summarize several violent earthquake disaster to conclude that wall is the main load-bearing and later-force-resisting member，its stress shows complex and materials are fragile, so that the earthquake resistant behavior is lower than others relatively.
Using sectional wall to bear load, the material of wall is KP Porous brick, MU10,and the strength grade of mortar is M5 in the 1-st and 2-nd floor, M2.5 for other floor.
Acknowledgement: This paper was financed by The National Natural Science Foundation of China:No.51168041 References: [1] Mingxue Bai, Xi Bai.
Journal of Ningxia University. 1997,18(2):141-145 [2] Zhiqian Yin.

Research of the stability of stiffened composite panel He Zhu1, a 1School of Aeronautic Science and Engineering , Beihang University No.37 Xueyuan Road , Beijing , China azh.miracle@hotmail.com Keywords: composite , stiffened panel , stability , buckle , stringer Abstract.
Chiara Bisagni simulated stiffened panel's buckling and post-buckling behavior under average compression loads.In the model,stringers are simulated as torsion bars.Simply and fixed supported stiffened panel's buckling load is derived according to minimum potential energy principle.The error between results calculated and FEM is less than 12%[1].Nian-Zhong Chen has been evaluated the stiffened panel's reliability under compression loads with finite difference method and applied stiffness reduction method in the failure process of stiffened panels under compression loads[2].Mei-Wen Guo used the relative degree of freedom shell and beam elements discrete composite stiffened panels and stringers,established bidirectional stiffened panel finite element model,calculated their buckling behavior under average compression loads and discussed the influence on buckling load values by stringer height ,thickness and material ply[3].Xu Liangliang numerically simulated the buckling and post-buckling behavior
The material properties of single model layer are shown in Table 1.
Fig.1 Flute type stiffened panel finite element model Table1 Single ply material properties E1/MPa E2/MPa μ12 G12/MPa G13/MPa G23/MPa 127500 9000 0.28 4900 4900 3600 The geometry parameters of composite stiffened plate is: skin length L=590mm, width W=440mm,skin plies [45 °, 0 °, -45 °, 90 °], stringer ply [45 °, -45 °, 0 °, 0 °], material layer thickness t=0.125mm, skin thickness 1mm, length 40mm.
[3] Mei-Wen Guo,Issam E.Harik,Wei-Xin Ren.Buckling behavior of stiffened laminated plates.International Journal of Solids and Structures,2002,39:3039~3055

This kind of buildings adapting better to locale climate, in a certain sense, it is sustainable, but should be improved with new idea of design and modern technology and material. 2.2 Design strategies for the hot-humid climate （1） The factors of influencing layout The precise activities to be housed in any specific building, ranging from an assembly line in a factory to a living room in a home, should dictate the size and shape of the several areas within.
Today, we should extent this way to wider range, which includes: ·Roofing planting, adopting light material planting green ·Wall planting ·Planting on projecting eaves ·Planting on sunshine boards ·Window sill planting ·Balcony planting ·Canopy planting(free drainage benefiting apron planting) ·Apron planting ·Adopt taller seasonal green plants on the South and West （4） Greening design strategies ·buffer layer strategy, for instance, hot buffer atrium, solar shade wall and cascade of slope roofs, solar shade shutter. system; ·natural energy using system, for example, using solar energy(solar housing ,solar cell etc ),using underground water(using it as natural cool and hot source) ·health and harmlessness strategy, for instance, natural ventilate ,greening from outdoors to indoors, harmless material and so on.
But it should be improved with new idea of design and modern technology and material.
References [1] Xia Yun,wang jin, new position of greenhouse,beijing: pro,International Greenhouse Technology Symposium,1991,20-24 [2] Xia Yun chinese underground space and natural air conditioning,lecture at ecoled’architecture de bdordeaux and ecole d’architecture de nantes,france,1995 [3] c.b.wilson.building and environment (the international journal of building science and applications).pergamon press,1994,1 [4] Li Yongzhang.

It is relatively small to consider effect on and for Poisson ratio, but such an approach does not meet the parameters of the actual geotechnical materials.
Because as rock material changes, its angle of internal friction is bound to change.
Table1 Poisson's ratio and internal friction angle correspondence table Poisson's ratio 0.25 0.3 0.35 0.4 internal friction angle 37° 22° 18° 16° Fig. 3 The relationship of Poisson's ratio and internal friction angle （a）0.25 （b）0.3 （c）0.35 （d）0.4 Fig. 4 The stress of different Poisson's ratio on 10m high and slope gradient 50 ° In Fig. 4, based on 10m high soil and slope gradient 50 ° for simulation, you can see the changing in the level of stress from the figure, where red is the slope tensile stress area (trailing edge tensile stress is by border conditions caused). due to poor soil material tensile properties on slope, so the tensile stress may lead the top of the slope of a hill to tensile fractures, and produce stress concentration
The stable slope angle of slope have a greater relationship with internal friction angle , the greater the friction angle ,the greater the stable slope angle of slope. friction angle is greater impact on the stress of slope than the cohesion References [1] Wuhan Institute of Mechanics, in: Chinese Academy of Experimental study of rock and calculation method [M], edtied by Rock slope stability Beijing: Science Press(1981)
[2] Tony Han Chuan, Wang Sijing, in: Dump slope formation mechanism and deformation analysis of influencing factors [J], edtied by Journal of Engineering Geology (1999,7: 213-217)