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Introduction With the improvement of the fabrication process and the level technology of the high temperature superconducting (HTS) materials, HTS electrical equipment which is especially the research of HTS generator has opened up a new way for the safe and economic operation of the power system.
The selection of HTS material.
Currently, the main HTS materials for mature application are Bi-2223 and YBCO, especially YBCO bulk which has many advantages such as higher critical temperature, high critical current, high remanence, more mature process and more reasonable price [4].
:Development and Applications of High Temperature Superconducting Material, Journal of University of Electronic Science and Technology of China,2006,35(14):612-627 [5] Ma Yanwei, Xiao Liye.
:Development and Application of the 2 Generation HTS Coating Conductor YBCO, Chinese Science Bullentin. 2005,50(1),1-5 [6] S.

Mathematical modeling of weld phenomena”, The Institute of Materials, 1997, pp. 543-570
General solutions”, Metallurgical and Materials Transactions B, 2000, Vol. 31B, pp. 1353-1370
[10] Lu Fenggui et al., “Numerical simulation on interaction between TIG welding arc and weld pool”, Computational Materials Science, 2006, vol. 35, pp. 458-465
[12] Zeng Zhi et al., “Numerical and experimental investigation on temperature distribution of the discontinuous welding”, Computational Materials Science, 2009, Vol. 44, pp. 1153-1162
[30] Lu Fenggui Et al., “Numerical simulation on interaction between TIG welding arc and weld pool”, Computational Materials Science, 2006, vil. 35, pp. 458 - 465.

Chemically Modification to Corn Stalk as a Natural Material for Oil Absorption Yuan Gao 1, 2, a, Shuai Li 1, b Ping Qu 1,c Lu Bai 1,d Liping Zhang 1, e* 1College of Material Science and Technology, Beijing Forestry University Qinghua East Road, Beijing, China, 100083 2 Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, Tsinghua University Tsinghua University, Beijing, China, 100084 a1986gy@sina.com, b leadswift@126.com, c qupinghappy@163.com, d hugongbailu@163.com, ezhanglp418@163.com Keywords: corn stalk; oil absorption; solvent-free system; chemically modification Abstract: A series of natural materials used for oil absorption based on corn stalks have been prepared by acylation grafting with propionic anhydride in a solvent-free system at 100 and 140 °C for 2-6 h.
(1) Materials and methods Materials and reagents.
The water absorbing properties of these materials were also examined (Fig. 2).
SEM is widely used to study the morphology features and surface characteristics of the materials.
) [2] L Zheng, Z Danga , X Yia, et al, Journal of Hazardous Materials, 176 (2010) p 650 [3] M.

Most references have assumed that stress amplitude is constant, and the dispersion of structural geometry has been considered or the P-S-N curve of materials has been used for fatigue reliability design [1,2].
Structural materials is 16Mn, V=0.1[7].
For single sampling of stress-time history, as shown in Fig. 2, the coefficient of variation V of distribution function of each variable is equal to 0.1, S-N curve(lgN=a+blgS) of materials with constants a=24.0589,b=-7.8056[6].
References [1] JIN Hui, WANG Jin-nuo: Journal of Southwest Jiaotong University Vol. 38 (2003), p.294 [2] SU Yanjiang, WANG Guangqin, GAO Qing: Journal of Mechanical Strength, Vol. 24 (2002), p.443 [3] Downing SD, Socie DF: Journal of Fatigue, Vol. 4 (1982), p. 31 [4] Andrew Halfpenny: Journal of Mechanical Engineering, Vol. 9 (1998), p.16- [5] Yang Guang-wu, Xiao Shou-ne, Jin Ding-chang: Journal of Mechanical Strength, Vol. 27 (2005), p.544 [6] Zhao Shaobian, Wang zhong.
Dowling: Journal of Materials Vol.1 (1972), p.77 [9] Xu Zhongji.

Castor oil is one kind of chemical raw materials irreplaceable and was widely used in chemical, energy sources, medicine areas and so on.
Materials and methods Preparation of castor stalk particle and fiber The castor oil plant produced in Zibo city, Shandong Province, it is 4-5 meters in height and 5-10 centimeter in diameter.
So the soakage-characters of the two materials are good both, but comparing to the castor stalk particle, the soakage-characters of the fiber is worse.
JOURNAL OF ZHE JIANG UNIVERSITY (MEDICAL SCIENCES) , 2005, Vol. 34(3), p. 217-219
Journal of southwest forestry college，2009，Vol.29(4), p.54-58.

Introduction Magnesium and its alloys have the advantages of low density, high specific energy, high strength and good electromagnetic shielding performance, so they are widely used in automotive, aerospace, electronic communications and engineering structure materials [1, 2].
Dietzel: Corrosion Science Vol. 81 (2009), p. 2483 [5] Y.
Tian: Chinese Journal of Materials Research Vol.23 (2009), p.193 [8] R.F.
Chen: CIESC Journal Vol. 60(2009), p. 2118 [14] A.
Mariko: Corrosion Science Vol. 51 (2009), p. 793 [17] Z.C.

Furthermore, some comfort issues, such as feeling damp, clammy after sweating during driving and skin prickle during the race, and inferior moisture absorbance in suit materials, were also reported [6-7].
Materials and Methods Literature was revised and collected related to the racing suit market, female racing car drivers’ perceptions towards the garment, and consumer needs.
The flow of the liquid moisture through the textiles is caused by fiber-liquid molecular attraction at the surface of the fiber materials, which is mainly determined by the surface tension and effective capillary pathways and pore distribution [31-32].
Textile Research Journal, 80 (10), 948-957 [11] Gorea A., Baytar F., Sanders E. (2021), Effect of stitch patterns on moisture responsiveness of seamless knitted wool fabrics for activewear, International Journal of Clothing Science and Technology. 33 (2), 175-187.
The science of clothing comfort.

Construction Channel Problems for Building Materials and Workers The ultra-soft soil has extreme low strength, so it is impossible for the workers to walk on it and it is very hard to transport the building materials on it.
So the float bridge can remain stable and offer enough channel for workers and transportation of building materials..
The float bridge constructed with foam plastic plates can provide a steady platform for the transportation of construction materials and workers.
[4] BO M W, CHOA V, et a1: Canadian Geotechnical Journal, Vol. 39(2002), p. 388
[5] ZHU Yao-ting: Journal of Hunan University(Nature Sciences), Vol. 35(2008), p. 120. ( in Chinese) [6] WEN Jia-hai, LI Yao-gang: Journal of Chongqing Jianzhu University, Vol. 22(2000), p. 9.

Journal of Nuclear Materials, 289 (1-2) (2001):42–47 [2] M.
Key Engineering Materials, 544(2013):43-47 [3] W.
Brewer, HSR/EPM combustor materials development program.
Journal of Vacuum Science Technology A, 6(1) (1988):5-8 [8] J.
Journal of the Electrochemical Society: Solid State Science and Technology, 134(12) (1987):3145-3149 [10] S.

A major cause for these failures is due to the mismatch of Coefficients of Thermal Expansion (CTE), Young's modulus, Poisson's ratios of package materials.
Table 1 Materials properties and models Material E[MPa] νννν[-] CTE[e-6/˚C] FEM material model Silicon 169000 0.23 3 Isotropic, Linear elastic Dielectric (Teos) 70000 0.23 0.4 Isotropic, Linear elastic Al 60000 0.35 20 Isotropic, Ideal elastic-plastic Compound material temperature dependent Isotropic, Linear elastic Typical FE Mesh.
For all materials.
Vol. 23 (2004) [5] CHEN T, LUO CT, WANG DS.: Chinese Journal of Vacuum Science and Tecnology.
Huang: IEEE Journal of Quantum Electronics.