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Materials and Methods Data on characteristics of C. albidum tree, availability, end-use pattern and factors influencing its uses were collected using structured questionnaire and on-the-sport technique during the survey conducted in the study location.
Mechanical Grading of Oak Timbers Journal of Materials in Civil Engineering, Vol. 11, No. 2, May, 1999, 7pp [5] Lucas E.B, Factors Preventing Wider Commercialization of Nigerian Tree.
Forest Product Journal. 33(5), 1983, Pgs 64-68
Uganda Journal of Agricultural Sciences, 12(1), 2006, 57-66 [8] Unasylva, Lesser-known tropical wood species : How bright is their future?
[14] American Society for Testing and Materials (ASTM), Annual Book of ASTM Standards.

Due to the inherent defects of Zn interstitial and O vacancy in ZnO crystals, the resistivity of intrinsic ZnO materials is usually relatively high, and its performance is also unstable.
Journal of Functional Materials and Devices 2008, (03):566-574
Applied Surface Science 2010, 256(22):6699-6704
Journal of Physics Condensed Matter 2002, 14(11):2717-2744
Rare Metal Materials and Engineering 2005, 34(001):154-157

China 2 Department of Materials Science and Engineering, University of Petroleum, Beijing, 102200, P.
Introduction The composites incorporating SMA in structural materials possess the characteristics of functional and structural materials with the exhibition of some smart behaviors.
Taya, Materials Trans.
Furuya et al, Smart Structures and Materials 1993, Smart Materials, SPIE, Vol. 1916 (1993), p. 373
McCoy, Journal of Sound and Vibration, Vol. 140 (1990), p. 437

They are replacing Si devices due to the higher performance of SiC material.
Introduction Higher performance of SiC material [1] has led to the gradual replacement of silicon MOSFETs with SiC devices in many applications.
SiC material has a higher bandgap and it can stand higher critical electric field than silicon.
Springer Science & Business Media, 2010
IEEE Journal of Emerging and Selected Topics in Power Electronics 4.3, p.978-987, 2016.

Materials and methods Water samples collection.
Journal of Oceanography, 2010,66:1-12 [5] N.
Journal of Sanmenxia Polytechnic. 2011,10(3):106-108 (in Chinese) [14] H.
Environmental science and management, 2008,33(10):93-96 (in Chinese) [15] Y.
Journal of microbiology, 2006,26(5):75-78 (in Chinese)

Experimental Details Material and Reagents.
Beverly, Bisphenol A: An endocrine disrupter with widespread exposure and multiple effects, Journal of Steroid Biochemistry & Molecular Biology, (2011) 127, 27-34
Ooi, Properties-performance of thin film composites membrane: study on trimesoyl chloride content and polymerization time, Journal of Membrane Science, 255 (2005) 67-77
Jian, Preparation and characterization of polypiperazine amide/PPESK hollow fiber composite nanofiltration membrane, Journal of Membrane Science, 301 (2007) 85-92 [10] J.
Nyström, Effect of salt mixture concentration on fractionation with NF membranes, Journal of Membrane Science, 283 (2006) 57-64

Cost Forecast Model Research based on Trend Extrapolation1 Xiao Zhao 1,a, Xuefeng Liu 2,b 1Electrical and Information Engineering College, Shaan Xi university of Science and Technology, Xi’an Shaan Xi, China,710021 2Xi’an Aircraft Industry Compony, Xi’an Shaan Xi, China, 710089 axianyang2@126.com, blxfxaic@163.com Key words: trend extrapolation, time series forecasting method, cost forecasting model, product cost forecasting Abstract.
Because the standard comparable costs were obtained directly from material consumption, in every period, material consumption is compared, so material consumption of producing some identified products must be reduced with improvement of production skills and production equipment, but which should not be infinitely reduced, in summary, the standard comparable costs should be in keeping with curve direction in Figure 1 in a long time.
Journal of Geodesy and Geodynamics.
Industrial Engineering Journal.

Damage is then computed with the formula: ))(exp( )1( 1 0 0 εκ κ ε − − − −= t t t B A A D if 0εκ> , where 0ε , tA and tB are material constants.
There are two reasons for this: the first one is the fact there is some free energy stored in the microstructure of the material and the other one is the presence of residual stresses in the unloaded state.
The first problem can be tackled by building a fictitious free energy potential from the knowledge of the mechanical behaviour of the material.
Pijaudier-Cabot: International Journal of Solids and Structures, Vol. 33, Num. 20-22 (1996), p. 3327-3342
[4] Planas, J., Elices, M., Guinea, G.: International Journal of Fracture, Vol. 63, Num. 2 (1993), p. 173-187

Materials and methods The area of the case is located at 123°23′-125°43′E and 39°43′-40°09′N, between Dayang river estuary and Yalu River estuary (Fig. 1).
Oxygen and hydrogen isotopes monitored by Xi'an University of Technology Key Laboratory of MAT253 mass spectrometer.The standard material was selected of VSMOW.
Zeitoun D: Journal of contaminant-Hydrology, Vol. 3 (1998), P.185 [2] Lan.
Clark: Environmental isotopes in hydrology (Science Press, China 2006) [3] Rozanski, K., Araguas-Araguas, L. andGonfiantini, R.: American Geophysical Union Monograph. (1993) [4] LAEA.Guide Book of Nuclear Techniques in Hydrology, Vienna, (1983) [5] Xiang yang TU, Xue ping GAO: Journal of Hydraulic Engineering Vol. 8 (2003), P. 412, in Chinese

Mechanics Analysis And Optimization of The Reachstacker Spreader Yufeng SHU1,2, Yongfeng ZHENG2 (1 DongGuan Polytechnic, China 523808; 2 State Key Laboratory of Digital Manufacturing Equipment & Technology, Huazhong University of Science and Technology, China 430074) hnzyf08@163.com, 94176510@qq.com Keywords: Mechanism, Optimiaztion, Spreader, Strength calculation Abstract: This paper establishes the finite element model of reachstacker spreader, makes static strength calculation under eight typical operating conditions with rated load, based on the calculation results, it points out the weaknesses of spreader and gives some corresponding improvement measures for the drawbacks.
Fig.3 Equivalent stress nephograms of case 1 and case 3 Fig.4 Local stress nephograms of the first three cases Seen from the graphs above, the maximum stress under all cases are less than the material yield limit 600Mpa.
International Journal for Numerical Methods in Engineering, 1976: 243-251
Dynamic analysis and modal test of long-span cable-stayed bridge based on ambient excitation: submitted to Journal of Central South University of Technology (English Edition), (2007), p, 136-139
Applied Mechanics and Materials, 2011:130-134.