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Raw Materials Cement.
Two concrete strength grades were used to the performance of concrete mixture, and its materials adopt two groups of limestone and basalt sand fresh concrete.
Water absorption will lead to the changes of reaction degree of cementitious materials in concrete and actual water binder ratio of concrete.
Yang, Advances in Science and Technology of Water Resources, 1 (2001) 27-30, 68
Wang, Journal of Yangtze River Scientific Research Institute, 12 (1999) 103-108.

Introduction The assessment of the bearing capacity of structural elements, the material of which was plastically deformed as a result of previous loading, should be based on the results of studying the effect of preliminary plastic deformation on the strength and durability of the material [1].
Materials and Methods Such data for chrome-manganese steel 03Kh13AG19 were obtained in this work.
Conclusions The use of experimental planning methods in studying the effect of maximum cycle stresses and the magnitude of preliminary residual deformation on low-cycle fatigue of chromium-manganese steel 03Kh13AG19 at T = 4.2 K under pulsating tension showed that these methods can be successfully used to solve problems related to mechanical - tests of structural materials.
EDP Sciences.123 (2019) 01012
Eastern-European Journal of Enterprise Technologies.  6 (12-102) (2019) 46–51.

Introduction New conceptions of the domain wall dynamics can be developed due to studying of the domain walls in exotic magnetic materials possessing extraordinary parameters of the exchange interaction and crystal structure.
Obvious novelty of the molecular magnets as new attractive magnetic materials promises unusual physical phenomena including new types of the nonlinear magnetic excitations and their special dynamics in crystals.
Inorganic materials give not examples of such pair convenient for our purposes.
Geim, Intrinsic Pinning of a Ferromagnetic Domain Wall in Yttrium Iron Garnet Films with Strong Uniaxial Anisotropy, Journal of Low Temperature Physics 139 (2005) 65-72
Ghalsasi, Synthesis and magnetic properties of chiral molecule based magnet, Material Science Forum 373-376 (2001) 449-452

In contact latching the magnet is attracted to another member and is placed in direct contact with the member, which can be another magnet or a soft magnetic material such as iron.
Consider a magnet with a remanence Br that is in contact with a plate of high permeability (µ) material such as iron that is unsaturated (Fig. 1(a)).
Here the magnet with attached flux plates is attracted to a wall made of soft magnetic material.
Takadoum, Materials and Surface Engineering in Tribology, John Wiley & Sons, Inc. 2008, 242 p
Salmeron, A General Equation for Fitting Contact Area and Friction vs Load Measurements, Journal of Colloid and Interface Science 211, 1999, pp. 395–400

Effect of Normalizing Pre-Treatment on Microstructure of Laser Hardened Ductile Iron Yanan Wanga , Liying Hanb and Ying Sunc School of Material and Metallurgy, University of Science and Technology LiaoNing, Anshan, Liaoning, China, 114044 awynaskd@163.com, bkdhanliying@163.com, csunying@tagal.com.cn Keywords: Ductile Iron; Normalizing; Laser Treatment; Microstructure of Hardened Layer Abstract: We adjusted the pearlite content of ductile iron matrixin by normalizing, finding that the microstructures of laser hardened ductile iron with different pearlite content and distribution were quite different.
Experimental materials and methods Experimental materials: The material for this experiment is ductile iron of cast magnesium (Chemical composition seen in Table 1).
Table 1 Chemical composition of material in the experiment (wt%) Elements C Si Mn S P Mg Re Content 3.20 2.82 0.62 0.061 0.034 0.050 0.050 Experimental methods: (1) Sample normalizing Adopt normalizing to make samples obtain ductile iron in different pearlite content, with the mental matrix from pure ferrite to pure pearlite.
Journal of Thermal Processing Technology [J], 2005 (3): 32~38 [3] Gongying Liang, Linyu Gu.

The critical load is the upper limit of buckling load in practice because the linear elastic method can be considered as the geometry nonlinear and material nonlinear. 2.
Some of them have already collapsed, and many of them may still have initial imperfections, caused by errors in planning, design, manufacturing of materials, or excessive loads before the completion of construction.
In the construction process, the geometry and material nonlinear affected the stability of the whole structure.
Study of Stress Ostrain Relation of Concrete Filled Steel Tubular Eccentric Compression Column,China Journal of Highway and Transport , 2004 , 17 (1) pp. 24-28
Analysis of Lateral Stability of CFST Arch Bridge .Chengdu : Southwest Jiaotong University , 1998 [12] Han Linhai1Concrete filled Steel Tubular Structure [M],Beijing : Science Press , 2000 [13] General Code for Design of Highway Bridge and Culverts JTG D60-2004

Table 1 Mechanical properties for various materials.
All materials are assumed to be elastic-rigid plastic with isotropy.
They conducted the self-consistent model to describe Young’s modulus and Poisson’s ratio of the porous material with the void volume fraction f in terms of Young’s modulus and Poisson’s ratio of the corresponding matrix when the void volume fraction is relatively large.
(8) Mechanical properties for other materials are listed in Table 1.
-H., Journal of Lightwave Technology, 19(8), (2001), p.1177 [6] Lin, Y., Liu, W., and Shi, F.G., IEEE Transactions on Advanced Packaging, 25(1), (2002), p.73 [7] Tandon, G.P. and Weng, G.J., J.

The model size is 70mm×70mm×20mm and whose material is PBT, the content of glass fiber in this material is 30% [6].
According to the material of the CPU fan, we chose PBT whose trademark is Valox 830U as the selected material in the software of MPI.
The recommended Injection temperature of this material is: T1=237~254°C.
Acknowledgment This research is sponsored by the Grand Science and Technology Project of Zhejiang Province (No.2009C21005) References [1] X.P.
Yang, et al: Chinese Journal of Electron Devices, Vol. 30 (2007), p. 1846-1851 [5] H.B.

It means the method that generates lower gross carbon emission in the clothing production process, including the clothing that selects lower gross carbon emission, the clothing made of the recyclable materials, and increases the clothes utilization rate and reduces clothes consumption amount.
The raw material of Modal fiber is extracted from the natural wood material of bushes in Europe, and can be naturally degraded after being used.
For example, the apparel, underwears, and pajamas made of bamboo fiber materials have the bacteria-resisting, bacteriostasis and uvioresistant properties and cause no damages to the environment.
[2] Chaode Li, China’s Entry into WTO and Clothes’ Green Ecological Design [J].Journal of Donghua University, 2002, 28(1):135-138
Progress in Textile Science and Technology, 2010(4):16-17.

Solar Energy Materials and Solar Cells, 2007. 91(13): p. 1234-1242
Solar Energy Materials and Solar Cells, 2001. 65(1-4): p. 385-392
Applied Surface Science, 2006. 252(15): p. 5470-5473
Journal of Crystal Growth, 2002. 242(3-4): p. 270-282
Applied Physics A: Materials Science & Processing, 2005. 80(3): p. 501-509