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Formally identify those physical and logical entities of the production system (e.g. machines, processes, workforce, materials, information, etc.) that are likely to be subject to disruptions and/or to generate risk.
It also requires restarting the production process, which requires a supplementary quantity of raw materials.
Journal of Hazardous Materials173, (2008),19–32
,“The danger model: a renewed sense of self”,Science, 296(5566), (2002), 301-305
Journal of Safety Science, 45, (2007), 329–353

Journal of Xi’an Jiaotong University, 42, 11(2008), pp. 1394-1397
Journal of the European Ceramic Society, 29, 5(2009), pp. 919-924
[3] Jae-WonChoi, Ho-Chan Kim, Ryan Wicker: Multi-material stereolithography.
Journal of Materials Processing Technology Vol. 211 (2011), pp.318–328
Laser Journal, 29, 1(2008), pp. 60-62.

Progress in Aerospace Sciences, 2012, 53: 1-17
International Journal of Production Economics, 2011, 133(2): 694-707
Journal of Systems and Software, 2009, 82(2): 241-252
Journal of Tsinghua University (Sci&Tech), 2011(2): 230-233
Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(4): 403-406.

[4] Malinowski, S., Szczepanska, S. and Sloczynski, J.: Journal of Catalysis.
Materials Matters.
Journal of Physical Chemistry B.
Journal of Molecular Catalysis A: Chemical.
International Journal of Basic & Applied Sciences.

Journal of Cultural Heritage, 9, 376-385
Journal Electrochem. 129, 17-19
Materials and corrosion, 51, 97D
Corrosion Science, 48, 2172-2188
Journal Shandong University, 25(4), 494.

According to the preliminary design materials, design floor elevation is 80 meter, two high slopes on both sides will form in the north and the south, the north slope length is about 380 m, The highest grade is about 55 m.
(Natural Sciences), 2007(6):528-532
Journal of Zhejiang University ( Engineering Science), 2006(3):494-500
Journal of Liaoning Technical University（Natural Science）,2010(1):99-102
Journal of Hunan University(Natural Sciences),2011(5):19-23

Introduction Adhesive joints are commonly employed in advanced structures due to requirements of lightweight materials, especially in automotive and aerospace industries.
A comprehensive understanding of the fatigue fracture process is needed in addressing reliability issues of adhesive joints, which is influenced by many different factors including adhesive layer thickness, different joining materials and loading conditions and exposure to environmental condition.
Radovitzky, A cohesive model of fatigue crack growth, International Journal of Fracture, vol. 110 (2001) pp. 351-369
Kenane, Measurement of mixed-mode delamination fracture toughness of unidirectional glass/epoxy composites with mixed-mode bending apparatus, Composites Science and Technology, vol. 56 (1996) pp. 439-449
Dávila, Mixed-mode decohesion finite elements for the simulation of delamination in composite materials, NASA-Technical Paper, vol. 211737 (2002) p. 33

But the properties and performance of nanosilver materials depend on their size and morphology.
Introduction Nanosilver[1] has received wide attention from researchers for its unique physical and chemical properties, and it has many applications in coatings, optical materials and biomaterials, as well as catalyst and battery electrode manufacturing materials[2-4].
Preparation and Characterization of Nano-silver, Materials Chemistry & Physics, 107(1) (2010) 85-90
Rare Metal Materials & Engineering, 33(5) (2004) 558-560
Preparation of Nano-Silver Flake by Chemical Reduction Method, Rare Metal Materials & Engineering, 39(3) (2010) 401-404

Nanoscience and nanotechnology are studies of materials science and engineering on a nanometer scale that is being developed by scientists around the world.
Nanoparticles can be in the form of metals, metal oxides, semiconductors, polymers, carbon materials and organic compounds.
Addition of materials or particle coating molecules can prevent the occurrence of aggregates between nanoparticles.
B., Lonzy O., Joseph O. and Jasper W.O., Phytochemicals and uses of Moringa oleifera leaves in Ugandan rural communities, Journal of Medicinal Plant Research, Vol.4(9): 753-757, 2010
Yang,  N.Jeyakumar, Bio synthesis of silver nanoparticles using mangosteen leaf extract and evaluation of their antimicrobial activities, Journal of Saudi Chemical Society, Vol.15 : 113-120, 2011

We have not yet found the special reports, at home or abroad ,of the phenomenon and the mechanism about materials that will occur macro cumulative plastic deformation in low stress and repeated impact conditions of loading.
That is because impact force peak did not reach the yield strength of materials and had the phenomenon of plastic wave transferring along the whole sample, the plastic deformation is just local.
Acknowledgements The authors acknowledge the financial support of the National Natural Science Foundation of China (grant No. 50975187, 61078019 and 10972150), and the Science & Technology Plan of Suzhou (SG0825, SG0923 and SYG201036).
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