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Many physical and mechanical properties of solid materials had great deal to do with the existence of vacancy.
Vacancy of ordinary material could be measured by experimental.
Journal of Chongqing University, 31-12(2008), p 1342 [6] J.
Applied Surface Science. 253 (2007), p. 3779
Journal of Physics F, Vol.10 (1980), p. 571

Experimentation Materials The soybean oil used in the preparation of the SOMG was food grade and was used alkali refined.
Results and discussion Preparation of SOMG.FT-IR spectrum is a useful tool to study the structure for polymeric materials.
Journal of Applied Polymer Science, 2005, 97:825–836
Polymer Engineering and Science, 2007, 47:1469–1479
Journal of Applied Polymer Science, 2003, 90:197–202.

A New Method of Activated Carbon Loading MnO2 to Formaldehyde Degradation Yuke yanga, Hua Zhangb, Shaogang Jin Tianjin Municipal Key Lab of Fiber Modification and Functional Fibers, Institute of Functional Fibers, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300160, China ayangyukeyyk@163.com, bhua1210@126.com Keywords: MnO2; formaldehyde degradation; activated carbon; loading Abstract: The major indoor air pollution-formaldehyde has been a serious threat to our lives to our lives, and accordingly the formaldehyde degradation has turned into a concerned issue of public.
Experimental Materials.
Acknowledgements The authors are thankful to Tianjin Municipal Science Foundation (NO: 09ZCKFSF02300) and State Key Laboratory of Hollow Fiber Membrane Materials and Processes (Tianjin Polytechnic University) for financial support.
Journal of Physical Chemistry B, 2002, 106: 9054-9058 [5] Yanzhen Fan, Baozhen Wang.
Infrared Spectra of Minerals, Science Press, Beijing, 1982, p. 117 (in Chinese)

Physical and chemical properties of materials depend on crystallite sizes, so the use of ultrafine SiC powders can improve characteristics of ceramics.
Acknowledgments This work was supported in part by the Ministry of Education and Science of the Russian Federation in the framework of State task “Science” (project “Dynamic Synthesis of Nanodisperse Crystalline Phases in Gas–Plasma Systems with Carbon and Nitrogen”, project. no. 7.1659.2011).
Andrievski, Synthesis, structure and properties of nanosized silicon carbide, Reviews on Advanced Materials Science. 22 (2009) 1-20
Li, Synthesis of SiC by silicon and carbon combustion in air, Journal of the European Ceramic Society. 29 (2009) 175-180
Production of Ultradispersed Crystalline Silicon Carbide by Plasmodynamic Synthesis, Journal of Superhard Materials. 35/3 (2013) 137-142.

Different operating materials result in the different load amplitudes and periods.
The three main types of operating materials are shown as follows. (1) Large block materials, such as large pieces of ore, large stones on quarry or construction site, are of characteristics of wide range of size variation, irregular shape and uneven density.
The load changes vehemently. (2) Dense materials, such as primary soil, cement, clay on construction site, are uniform texture.
During the test of typical working conditions, block materials, dense materials and loose materials are respectively represented by the rock, the primary soil and loose soil.
The field, materials and driving operation of this test are supposed to be ideal cases.

Chinese Journal of Rock Mechanics and Engineering [J].
Journal of Hydroelectric Engineering.
Chinese Journal of Rock Mechanics and Engineering.
Journal of Hydroelectric Engineering.
Journal of Hydroelectric Engineering, Vol.25, No.2: 16~20.

As a result of this prohibition, some of the processes in which N. flagelliforme is utilized as an indispensable material are severely baffled.
Materials and Methods Microorganisms.Colonies of Nostoc flagelliforme that naturally grew in the field were collected from the eastern side of the Helan Mountain in Yinchuan, Ningxia, China.
Ecology of the terrestrial alga Nostoc flagelliforme Berk. et Curt. in China Journal of Applied Phycology, 1991, 27(Suppl): 45
Journal of Applied Phycology, 1998 10: 37–49
Review of Nostoc flagelliforme research, Journal of Ningxia University (Natural Sciences) , 1992, 13(1):71–76 (in Chinese with English abstract)

Metallurgical and Materials Engineering 26 (1) (2012) 87-102
Thermal Science and Engineering Progress. 20(2020) 100739
Jamiatia, Effect of differentially heated tubes on natural convection heat transfer in a space between two adiabatic horizontal concentric cylinders using nano-fluid ,International Journal of Mechanical Sciences. 163(2019) 105148 [24] M.I.
Said, Effects of fins geometries, arrangements, dimensions and numbers on natural convection heat transfer characteristics in finned-horizontal annulus, International Journal of Thermal Sciences.137(2019) 121-13
Farhadi, Effect of radial fins on two-dimensional turbulent natural convection in a horizontal annulus, International Journal of Thermal Sciences. 43 (2004) 255–264.

Journal of Structural Engineering, 11：2858-2896,1989
Journal of Structural Engineering,130(2):352-360,2004
Journal of Structural Engineering.130 (2):361-367.2004
Journal of Structural, 1990，11（4）：28-36(in chinese) [5] Li Xiang Ming.
Xi’ an：Shanxi science and technology publishing house，1994(in chinese) [12] Fu Jian ping，Zhang Chuan，Bai Shao liang.

Material and Methods Site Description.
Journal of the Graduate School of the Chinese Academy of Sciences (in Chinese), 24(4): 465-472
Journal of Shihezi University (Natural Science) (in Chinese), 2(4): 327-329
Journal of South China University of Technology (Natural Science Edition), 35(4): 117-123
Soil Science, 167(1): 62-67