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Magnusen: Materials Science and Engineering, Vol.
Soni: Journal of Materials Science, Vol. 28, 1993, p. 3205. 15.
Srivatsan, S Sriram, D.Veeraraghavan and V.K.Vasudevan: Journal of Materials Science, Vol. 32, June 1997, p 2883. 16.
Soni: Journal of Materials Science, Vol. 28, 1993, p. 3205. 29.
Vasudevan: Journal of Materials Science, Vol. 32, June 1997, p. 2883. 30.

Introduction to Advanced Materials.
[3] C.Suryanarayana, E.Ivanov, V.V Boldyrev, The science and technology of mechanical alloying, Materials Science and Eng, A304 -306 (2001),151-153 [4] G.Jangg, E.
Schults, New Materials by Mechanical Alloying Techniques.
Joseph , C.G.Wang ,lead free solder alloys Sn-Zn and Sn-Sb ,prepared by mechanical alloying ,Journal of materials science in electronics, Feb.(2000)
,Froyen, L., Delaey, L.: The modeling of the mechanically alloying process in a planetary ball mill ,Materials .Science .and Eng., A 161,1993,pp.75-82

Materials and Methods In this study, the antioxidative properties of Latvian herbal syrups were estimated regarding total polyphenol content (TPC), total flavonoids content (TFC) and antiradical activity.
The time of preparing, as well as the amount of ingredients and other raw materials varied depending on plant or fruit origin.
Dhanapal, Formulation and evaluation of herbal syrup containing cocos nucifera linn.root, Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2(4) (2011) 54-61
Kaņeps, Antioxidant characteristics of Latvian herbal tea types, Proceedings of Latvian Academy of Sciences.
Attrey, Characterization of a prepared poly-herbal formulation and comparison of its DPPH scavenging activity with other marketed formulations, European Journal of Biological Sciences. 4(3) (2012) 68-72.

Journal of Safety Science.
Malaysian journal of civil engineering, Vol. 20 (2008) No.2, p.242
Safety Science.
Journal of Safety Science.
Journal of Safety Research.

Materials and methods Materials.
Aluminum-plastic composite packaging materials after the pyrolysis in tube furnace, the remaining material is mainly metal Al.
Felisberti: Journal of Appl Polymer Science, Vol. 101 (2006), p. 3183 [5] W.
Song: Research of Environmental Sciences.
Beijing: Science Press, 2001

The investigations on various porous materials [2,3] indicate that the existing porous materials generally have a good ability of sound absorption at the high frequency range.
Some of the porous materials may cause dust, and the investigation on certain porous materials requires a high cost or a complex manufacture technique.
Journal of Materials Science and Engineering, 2004, 22(6): 934-939(in Chinese) [3] Ma Jianmin, Cui Zhe, Lv Jinglin.
Experiment research on sound absorption characteristics of metal fiber materials[J].
Beijing: Science Press, 2004(in Chinese)

The polymer composites are mostly used as a replacing material of the wood and building materials.
The investigation of natural fiber composites are rapid growth in the innovation of materials [5-7].
Hassan, A review of the flammability factors of kenaf and allied fibre reinforced polymer composites, Advances in Materials Science and Engineering. (2014) [5] V.S.
Asian Journal of Research in Social Sciences and Humanities. 6(9) (2016) 461-472
Pavayee Subramani, Investigation of physico-mechanical and moisture absorption characteristics of raw and alkali treated new agave angustifolia marginata (AAM) fiber, Materials Science. 24(1) (2018) 53-58

Advanced Materials Research 199-200 (2011), 1958-1966 [8] W.
Advanced Materials Research (2011), 189-191:377-384 [10] S.
Jounal of Applied Mechanics and Materials (2013), Vol. 239-240: p.661-669 [11] S.
Journal of Key Engineering Materials (2010), Vol. 443: p. 382-387 [18] P.
Procedia Materials Science 5 (2014), 1692-1701

Research on Sports Electronic Instrument and Equipment Wang Yanxiu, Jiang Yipai School of Humanities and Social Sciences, Jingdezhen Ceramic Institute, Jingdezhen, Jiangxi, 333000 Keywords: Electronic Equipment; Large Scale Track And Field Competition; Sports Abstract: With the development of the modern science and technology, new and high technology and the electronic instrument and equipment has been widely used in the referee work of the large scale track and field matches, which is also a prominent feature of the modern large scale track and field matches.
In the eighties, with rapid development of the computer technology, and the appearance of various new materials, sports electronic equipment has reached a new level in terms of its reliability and automation.
The second category is the various auxiliary training and monitoring equipment and instrument used for scientific sports training, to improve the sports performances, such as the swimming start, the Turing test, rowing strength telemetry, eight first telemetry, heart rate telemetry, photoelectric detection of firing stability, and the electronic equipment related to the athlete’s material selection.
Conclusion With the development of modern science and technology, new and high technology and electronic equipment have been used in the judgment of the track and field competitions, which make the contest results of the judges more accurate, objective, impartial and scientific, and is more able to reflect the equality of the competition conditions and justice and fairness of the referees, and greatly promotes the referee levels.
The main characteristics of the refereeing work in the modern athletic sports , Journal of Physical Education, 2001, 8 (4): 114-116

Calcium sulphate hemihydrate/α-tricalcium phosphate (CSH-TCP) cement are promising bone replacement materials with controllable-degradation rate and setting time and excellent delivery matrix for sustained release.
Materials and Methods α-TCP was produced by calcining the CDHA (Ca/P=1.5) powder gradually to 1200℃ and keeping the temperature for 2 hours and then quenched in the air.
The phase structures of all the materials were confirmed by X-ray powder diffraction (XRD).
Brecevic : Journal of Crystal Growth.
Higuchi, Journal of Pharmacentical Sciences: (1963), p.1145