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Introduction Seed is one of the most basic agricultural production, irreplaceable, special production material, which is the foundation of the agricultural development.
British-Journal, 2012.104(1):p.7-9
Management Science, 2010.56(2):p.343-355
International Journal of Production Economics, 2010. 124(2): p.426-432
Jiangsu agricultural science, 2013.41(7):p.388-390.

Random Lasers with Coherent Feedback From Polymer Films Based On Rh6G-PVP Xiyun Liu1,2, a, Shenye Liu1, b, Tao Yi1, c*, Chuanke Wang1, d, Tingshuai Li2, e, Min Xu2, f and Dengfeng Huang2, g 1Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan China, 621900 2School of Energy Science and Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu, Sichuan, China, 611731 a346109910@qq.com, blsye1029@163.com, cyitao2008@caep.cn, dwck1981@caep.cn, elitingshuai@uestc.edu.cn, fxuminuestc@gmail.com, g188078741@qq.com, Keyword: Random laser, Spin-coating, Polymer films, Redshift.
Introduction Unlike traditional lasers which a Fabry-Perot cavity and an optical gain material are indispensable for the system to lase, RL is a special kind of lasers in which the cavity is formed with closed-loop random cavities owing to multiple scattering of photons in the amplifying media and determines the resonant frequency and threshold of the lasers.
Acknowledgements This work is financially supported by the National Natural Science Foundation of China under Grant No.11435011 and all the workmates who offered helps are acknowledged.
Vardeny, Cancerous tissue mapping from random lasing emission spectra, Journal of Optics, 12 (2010)
Ismail, Effect of Host Medium on the Fluorescence Emission Intensity of Rhodamine B in Liquid and Solid Phase, Journal of Fluorescence, 19 (2009) 741-746

Surface Roughness Prediction of High Speed Milling Based on Back Propagation Artificial Neural Network Jinping Hua, Yan Lib and Jingchong Zhang Heilongjiang Institute of Science and Technology Harbin, 150027，China ahujinpingmary@163.com, bbeibeima311@yahoo.com.cn Keywords: Aluminum Alloy; High Speed Milling; Surface Roughness; BP Artificial Neural Network Abstract.
The material of specimen was aluminum alloy(2A70).
Journal of Manufacture Science and Technology, Vol.37 (1997) No.8, p. 664-667 [2] W.
Shi: Principle and Application of Artificial Neural Networks (Science Press, CN 2006) (In Chinese) [4] D.
Cai: Journal of Harbin Institute of Technology(2003)(In Chinese) [5] Masahiko Ara: Neural Networks Vol. 6 (1993) p. 2 [6] Information on http://www.lwbst.com

Introduction With the rapid development of science and technology, the requirements for industrial production automation is become more and more strongly, more and more automation equipment are used in production line, and parallel robot are also increasingly being used.
Considering the practical application of the robot, the material of moving parts use carbon fiber, its density is about 1.7g/cm3.
Taiyuan: Taiyuan University of Science & Technology, 2010.
Chinese Journal of Engineering Design, 2013, 20(6): 501-506.
Journal of Mechanical Science and Technology, 2013, 27(12): 3797-3804.

Semiatin, Thermomechanical processing of β titanium alloy-an overview, Materials Science and Engineering A243 (1998) 46–65. 5.
Semiatin, Thermomechanical processing of α titanium alloys-an overview, Materials Science and Engineering A263 (1999) 243–256. 6.
Semiatin, Texture evolution in vacuum arc remelted ingots of Ti-6Al-4V, Materials Science and Engineering A346 (2003) 8-18. 7.
Shanoob, Department of Materials Engineering, Indian Institute of Science, India 28.
Rollett, Current issues in recrystallization: a review, Materials Science and Engineering, A238 (1997) 219–274. 48.

-Cotta-Str. 4, 09599 Freiberg, Germany 4Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences Russia, Leninskii Prospect 49, Moscow, 119991, GSP-1 arushits@mail.ru, bar.evgenii@yandex.ru, crudolf.kawalla@imf.tu-freiberg.de, dvns@imet.ac.ru Keywords: Aluminum alloys, hot rolling, Gleeble, mechanical texture, mechanical properties Abstract.
Ryum, Scandium in aluminum alloys, International Materials Reviews. 50 (2005) 19-44
Sanders Jr., A Study of Coarsening, Recrystallization, and Morphology of Microstructure in Al-Sc-(Zr)-(Mg) Alloys, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 35 A (2004) 341-350
Basson, Solving for Friction Effects during Mechanical Compression Testing R & D Journal. 20 (2004) 3-7
Kurtasov, Quantitative analysis of the rolling textures of materials with a cubic symmetry of crystal lattice, Zavod.

Manufacturing processes are full of random and dynamic in nature, and different kinds of unexpected events, such as equipment breakdowns, changes in processing and setup times, inadequacy of raw materials, due date modifications, order cancellations and price changes, occur quite frequently [2].
Yih: European Journal of Operational Research, Vol. 206 (2010), pp. 642
Venayagamoorthy: Systems Journal, Vol. 6 (2012), pp. 103
Yue: European Journal of Operational Research, Vol. 184 (2008), pp. 63
Newell: Management Science, Vol. 33 (1987), pp. 509

China 2State Key Laboratory of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao 066004, P.R.
Sano: Journal of Materials Processing Technology, Vol. 139 (2003) p. 362-367 [3] G.P.
Padalko: Diamond & Related Materials, Vol. 17 (2008) p. 213-216 [4] K.
Yun: Diamond and Related Materials, Vol. 9 (2000) p. 1722-1725 [7] S.
Carlisle: Diamond & Related Materials, Vol. 14 (2005) p. 86-92 [9] K.

However, the pore structure of the mesoporous titania may be damaged seriously by calcination [6,7] and the application of mesoporous titania materials would be restricted.
The goal is to provide new and efficient routes for obtaining crystalline and well structured mesoporous titania materials for potential use. 2.
The TiO2 materials without P123 have smaller surface area though the isotherms(curve a) are also of type IV, whereas, the materials exhibit the smaller surface area of 114.1 m2⋅g −1 only, suggesting the presence of P123 can accelerate the growth of pore structure.
Wang, Journal of Physics and Chemistry of Solids. 69 (2008) 1147-1151 [3] E.L.
Pizzio, Materials.

Introduction Self-compacting concrete is among the most significant achievements in construction materials science in recent years.
The Main Research Self-compacting concretes radically change the traditional concepts of construction materials science.
Zvezdov, Features of calculating the durability of reinforced concrete structures strengthened by composite materials, Construction materials, 1-2 (2017) 73-77
Komarichev, Composite materials on the basis of cement and water activated systems for injection compacting of concrete in enclosing structures, Construction materials, 5 (2015) 31-35
Karaseva, The Formation of Composite Curing Systems Based on Technogenic Raw Materials//Materials Engineering and Technologies for Production and Processing IV/4th International Conference on Industrial Engineering (4th ICIE 2018).