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At present, the commonly used cool storage material includes water, ice, soil, eutectic salts, gas hydrates and the organic phase change materials. 2) Cool storage space The seasonal natural ice storage technology store up natural cold in winter and use it in summer.
Journal of Agricultural Mechanization Research.
Cold Regions Science and Technology.
Journal of Refrigeration, Vol. 6(1984), p.50-57(in Chinese) [13] L.F.
Journal of PLA University of Science and Technology (Natural Science Edition).

Materials CR210, are commercial products from Lanxess, Germany.
The organic montmorillonite (OMMT) were provided by Institute of Polymer Materials, Qingdao University, China.
Other materials are commercial products.
Material science and technology. 12(2004)618-621
Journal of Material Research. 6(1993)1185-1189

Research on magnetic properties of Nd2Fe14B/α-Fe/Nd2Fe14B exchange-coupled trilayer films ZHANG Min-gang1, a, YANG Li-li1, b, ZHAO Yi-chao1, b, ZHANG Jia1, b, SUN Gang1, b 1College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi 030024, China a mgzhang@163.com, b am_lab@yeah.net Corresponding author: Zhang Min-gang, Email:mgzhang@yeah.net, Tel:+86-351-8560790.
Melt spun permanent magnet materials containing Fe3B as the main phase [J ] .
Journal of Materials Science & Engineering. 2003,21 ( 3 ):441-445
Japanese Journal of Applied Physics. 1989, 28:2485-2507
P. exchange coupling and remanence enhancement in nanocomposite multilayer magnets Advanced Materials. 2002,14 (24): 1832-1834

Introduction On the domestic market , the solid surface sizing agent is composed of a variety of cationic raw materials which can replace the traditional surface sizing agent.
This study analysis the appearance of solid surface sizing agent in market. choosing a variety of related materials and then mixed starch prepared by a specific process and orthogonal experiments.
Material and instruments 1.1 Main reagents and raw materials Borax, sodium silicate, anhydrous sodium sulfate, ferrous chloride, the original starch. 1.2 Instruments Electric mixer, analytic balance, electric heating sets, oven and hob, love the doorways, tear strength, breaking length tester, taber type tester, the stiffness of the paper surface strength tester.
It be seen from the orthogonal experimental data, A, B, C, D four kinds of raw materials which A and B two kinds of the size of the amount of raw material has a greater impact on paper performance.
[2] Bai Chunni, Han Qing, Oxidation degree of starch for corrugated base paper surface sizing performance, Journal of Shanxi University of Science and Technology,natural science edition), 2009

Selection of protective coatings obtained by plasma spraying method for foundry industry Maria Richert1,a, Beata Leszczyńska-Madej1,b, Ilona Nejman1,c, Paulina Zawadzka1,d, Stanisław Pietrzyk2,e 1AGH, University of Science and Technology, Faculty of Non - Ferrous Metals, Department of Materials Science and Non-Ferrous Metals Engineering, Mickiewicza 30 Av., 30 – 059 Krakow, Poland 2AGH, University of Science and Technology, Faculty of Physics and Applied Computer Science, Department of Solid State Physics, Mickiewicza 30 Av., 30 – 059 Krakow, Poland amrichert@prz.edu.pl, b*bleszcz@agh.edu.pl, cinejman@agh.edu.pl, dpauzaw@prz.edu.pl, epietstan@agh.edu.pl Key words: plasma spraying, foundry industry, microstructure, wettability Abstract.
The porosity/density of materials was examined with a “Structura” software.
Maslakov, A superhard diamond-like carbon film, Diamond and Related Materials, 9 (2000) 715-721
Richert, The wear resistance of thermal spray tungsten and chromium carbides coatings, Journal of Achievements in Materials and Manufacturing Engineering, 47 (2011) 177-184
Kuczek, Effect of plasma gases on the structure and properties of WC-CrC-Ni coatings, Key Engineering Materials, 641 (2015) 105-110

When these biomaterials are implanted into the body, the initial interaction occurs at the surface of the materials, So in most of the cases, the surface properties of the HA play an important role in its application as its surface is in direct contact with the environment (body fluids,etc.)
Materials and Methods 2.1 Materials An amorphous Ca phosphate way was adopted to prepare HA powder [8].
Elsevier Science Publication. 9(1990)p.149 [2] Wilson J, Low SB.
J Vac Sci Technol . 14(1996) p.1747 [6] Flinn D H, Guzonas D A, Yoon R H. 87(1994) p.163 [7] Achilles Tsortos, Shinpei Ohki, Anita Zieba, Journal of colloid and interface science. 177(1996) p.257 [8] Yanbao Li, Wenjian Weng, Kui cheng, Piyi Du.
Journal of Materials Science Letters. 22(2003) p.1015 [9] NIST Databank in X-ray phoelectron spectroscopy version 1.0, p.1989

Fatigue Crack Growth Behavior in Girth Weld of Natural Gas Transmission Pipelines � Young Pyo Kim 1,a , Cheol Man Kim 1,b , Woo Sik Kim 1,c and Kwang Seon Shin2,d 1 R&D Division, Korea Gas Corporation, 638-1, Il-dong, Sangrog-gu, Ansan, Kyonggi-do, 426-790, Korea 2 School of Materials Science and Engineering, Seoul National University, San 56-1, Silim-dong, Gwanak-gu, Seoul, 151-742, Korea a ypkim@kogas.re.kr, bcmkim@kogas.re.kr, cwskim@kogas.re.kr, , dksshin@snu.ac.kr Keywords: Gas pipeline, API 5L X65, Girth weld, Fatigue crack growth rate, Stress ratio Abstract.
The materials used in this study are API 5L X65 pipeline steel generally used for natural gas transmission.
This is due to a combination of good design, materials and operating practice.
Experimental Procedure The materials used in this study are X65 pipeline steels generally used for natural gas transmission pipeline.
Yang: International Journal of Fatigue, Vol. 21 (1999), p. 857-864 [5] L.W.

Introduction The artificial bones, which are designed by Brep or solid, are usually made in metals or other materials.
Then, by tissue engineering materials and multi jetting heads RP devices in normal temperature, a porous structure could be made.
So we could simulate the parts made of different materials.
RP of artificial bone [J].Journal of Materials,2002,14(2):11-13 [3] Yongnian Yan, Fuzai Cui, renji Zhang.Jetting Forming Technology for Tissue Engineering Materials of Articial human bone[J].
Journal of Computational Information Systems ，2007，Vol.3（2）：203-213.

Experimental section Materials and Instruments.
Advanced Materials Industry, Vol.7(2009), p. 29 (in Chinese) [3] G.
Journal of Hainan Normal University (Natural Science), Vol.26(2008), p. 372 (in Chinese) [7] A Khalaj, N Adibpour, A.R.
Advanced Materials Research Vol.331(2011), p. 265 [11] Z.M.
Advanced Materials Research Vol.627(2013), p. 248 [12] Z.D.

Gelatin, as a kind of renewable and environmentally friendly materials, is one of the most popular biopolymer [8].
Materials and Methods Materials Gelatin (Purity ≥98%, food grade reagent) was purchased from Qingdao Yousuo Chemical Technology Co.
Journal of Petroleum Science and Engineering.
Journal of Applied Polymer Science.
Journal of Petroleum Science and Engineering.