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Introduction The stress concentration problems are encountered frequently where a sudden change of geometric dimension or material property takes place in the engineering structures.
This is because the actual materials have their own microstructure and intrinsic length scale, and the steep strain gradient may occur where stress concentration occurs.
Material parameters used are: elastic modulus E=, poisson's ratio .
Acknowledgements This work was financially supported by the Open Research Fund of the Key Laboratory of Rock and Soil Mechanics, Chinese Academy of Sciences(Z110701), the National Natural Science Fund of China (50808033), and the Fundamental Research Funds for the Central Universities (DUT11LK37, DUT11ZD110).
Ge: Journal of Shanghai Jiaotong University, Vol.35, 1481-1485 (2001).

CTS has a highly reactive amino group is a useful material for various purposes such as ion-exchange [2].
Recently, CTS derivative bearing β-CD has received considerable attention because its adsorption behavior is different from those of natural CD and CTS materials [3, 4].
Experiment Section A.Preparation of Chemical Modification of β-CD-g-CTS Unless otherwise noted, all of the raw materials were analytical purity and used as received without further purification.
Acknowledgment This project was supported by Natural Science Fund of Shaanxi province (2009JM2015) and the Graduate Innovation Fund of Shaanxi University of Science and Technology.
Gao, “Dry Preparation Process of Carboxymethyl-β-cyclodextrin,” Chinese Journal of Applied Chemistry, Vol. 25, no. 6, pp. 681-684, June 2008

Food waste and swine manure analysis Ultimate analysis for experimental materials are illustrated in Table 1, percentage of carbon (%C), percentage of hydrogen (%H), percentage of nitrogen (%N), and percentage of oxygen (%O), heating value (Cal/g) and ash.
Material %C %H %N %O Heating value (Cal/g) Ash Food waste 48.18 10.55 2.55 38.72 4180.4 91.5 Pig manure 26.54 3.49 3.18 66.79 2528.5 54.3 Methodology 1.
All materials were well blended and filled in 2,000 liter digester tank. 4.
Kaosol : Sustainable solutions for municipal solid waste management in Thailand,World Academy of Science, Engineering and Technology Vol.60 (2009), p.665
Ramanujam : Biogas Generation in a Vegetable Waste Anaerobic Digester, Research Journal of Recent Sciences Vol.1(3) (2012), p.41

Ferrous particles inside MRE have basic characteristics as conductive materials.
Samali, Development and characterization of a magnetorheological elastomer based adaptive seismic isolator, Smart Materials and Structures. 22 (2013) 035005
Zamzuri, Phenomenological dynamic model of magnetorheological damper using a neuro-fuzzy system, Smart Materials and Structures. 22 (2013) 125013
Imaduddin, Design of magnetorheological damper with a combination of shear and squeeze modes, Materials and Design. 54 (2014) 87-95
Zamzuri, A design and modeling review of rotary magnetorheological damper, Materials and Design. 51 (2013) 575-591 [12] X.L.

The composite can be a promising scaffold material for tissue engineering. 1 Introduction One of the key technologies in tissue engineering is the preparation of scaffold material for cell culture and tissue repair.
Hydroxyapaite (HA) ceramics have been used as tissue engineering material because of its good biocompatibility and osteoconductivity[7,8].
In this study, we prepared highly porous three-dimensional sponges composed of HA and ALG by the freeze-extraction and freeze-gelation methods [14]. 2 Materials and methods 2.1 Preparation of porous composite.
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Extending the field of application of the drill string equipment to its use under pressure requires the use of some material brands capable to meet the requirements [2].
Depending on the temperature of heat-treatment, the hardened alloy exhibits a pearlitic to martensitic structure that results in a tough, erosion-resistant material.
But the thermal conductivity of this system is much higher than the thermal conductivity of the oil (because the polymer is water-based), and due to this the authors obtain a greater hardenability of the material and higher mechanical properties.
Shevchenko, Comparative estimation of technological capabilities of polymer quenchants, Science and education, 3 (2014) 340-343
Gudtsov, Review of theoretical research and practical work on the definition of the elastic limit Journal of the Russian Metallurgical Society, 3(1) 1914 375-414 [12] K.Y.

It is an ideal filler for composite materials and metal materials [1].
Experiment Raw materials.
The flammability of polymeric materials depends on the oxidation index.
And, the material with the oxidation index below 21 is flammable materials. .
They had come up to be non-flammable materials

Materials Science and Engineering: A, 2006, 438: 18-24
Materials Science and Engineering: A, 1996, 213(1): 103-114
Journal of Materials Engineering and Performance, 2005, 14(6): 681-685
Materials Science and Engineering: A, 2011, 528(18): 5854-5860
Materials Science and Engineering: A, 2003, 358(1): 128-133

Chen: Chinese Journal of Sci.
Yang: Journal of electronics & information technology Vol. 26 (2004), p. 825 [6] R.
Dumont: Journal of Vibration and Acoustics Vol. 131 (2009), p. 024501-1 [7] D.X.
Ni: Key Engineering Materials, Vol. 245-246 (2003), p. 265 [8] H.
LANG: International Journal of Information Acquisition, Vol. 5 (2008), p. 93

While cutting, the tools removal materials, which makes the interaction between the various error sources more complex, and it is difficult to get specific causal relationship between a variety of error sources.
Journal of Tsinghua University (Science and Technology).
Journal of System Simulation.
Journal of System Simulation.
Chinese Journal of Aeronautics.