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Figure 1 Chemical structure of Risocaine Table 1 Purities and physical properties of the substances used in this work Substance Mw (g/mol) Tm (K) Vs (L/mol) Tc (K) Pc (bar) Psat(Pa) (298K) ω Purity (mol%) Carbon dioxide 44.01 － － 304.19 73.82 － 0.228 >99.9 Risocaine 179.22 596.45 0.1626 819.13 31.42 0.00352 0.717 >99 Experiment Materials.
Acknowledgements This work was supported by the National Natural Science Foundation of China (No: 21076068), Program for Hunan Provincial Natural Science Foundation of China (No. 07JJ3016), and Aid program for Science and Technology Innovative Research Team in Higher Educational Institution of Hunan Province.
Supercritical fluids as solvents for chemical and materials processing.
Journal of Supercritical Fluids. 2001,20, 179-219
Salicylic acid solubilization in supercritical CO2 and its micronization by RESS, Journal of Supercritical Fluids. 1993, 6, 241-248.

Introduction Energy resources is indispensable important material resources for the human survival, economic development and social progress[1].With China's rapid economic development, China has become the second largest country in oil imports and consumption all around the world.
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The size of the test material is 200×100×100mm.
[3] Y Li, L Wang, Research Progress of Ion Nitride Technology, Materials Review. 2014, 28(13):61-64
[4] Oerlikon Balzers launches next generation of PPD™ technology as substitute to chrome-plating, Anti-Corrosion Methods and Materials. 2013, 60(3): 133-137
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Effect of Bias on Structure and Properties of DLC Film for High Power Pulsed Magnetron Sputtering, Materials Research and Application, 2020, 14(01): 1-8.

Before an analysis of the carbon dioxide emissions from the production of magnesium we need to understand the available raw materials and processing options.
· The CO2 emissions from a magnesium plant are a strong function of the energy sources used to prepare the magnesium bearing raw materials and to reduce the raw materials to magnesium metal
· There are many different types of raw materials that are suitable for producing magnesium and processes to use a specific raw material must be tailored for that material in order to minimize CO2 emissions
Ding, The Pidgeon Process In China And Its Future, in: The Magnesium Technology 2001, J.Hryn (Ed.), TMS (The Minerals, Metals &Materials Society) 2001, 7-10
Davis, Heat transfer modeling of Global Anthropogenic Warming: submitted to Journal of Nanomaterial and Energy, 2014.

Materials and Methods In order to investigate the effect of Er additions on hypoeutectic Al-Si-based alloys, a reference and two modified alloys were cast.
The widely diffused Al-7Si-0.3Mg alloy (UNS 13560, corresponding to ANS A356.0, which composition limits are listed in Table 1) was selected as reference material.
Raghavan, Al-Er-Si (Aluminum-Erbium-Silicon), Journal of Phase Equilibria and Diffusion, 31 (2010) 44-45
Raghavan, Al-Er-Si (Aluminum-Erbium-Silicon), Journal of Phase Equilibria and Diffusion, 31 (2010) 453-454
Xie, Diffusion coefficients of some solutes in fcc and liquid Al: critical evaluation and correlation, Materials Science and Engineering: A, 363, (2003) 140-151.

The decreasing trend of the normal force distribution at ratios higher than the critical ratio might be due to some kind of changes in the dominating material removal mechanisms at such grinding conditions.
Journal of Manufacture Science and Engineering.
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Liao: Wear of Diamond Wheels in Creep-feed Grinding of Ceramic Materials - Effects on Process Responses and Strength.

(d) The constitutive model of material is isotropic elasto-plastic body that can be hardened.
The yield limit, elastic modular and shear modular of material are 248.1 N/mm2, 2.04×10 5 N/mm2, 7.92×104 N/mm2 , respectively.
Acknowledgements This work was supported by Natural Science Foundation of Shanghai (Project no. 05zr14122).
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Shown as formula 1, the essential condition of VSR is that the sum of dynamic stress and residual stress must be greater than yield limit of material.
From VSR theory, the sum of dynamic stress and residual stress must be greater than yield limit of material and less than fatigue limit of material.
The material of machine tool body is HT 300, and overall dimension of body is 8800 mm×1300 mm×660 mm.
[2] Nie Fu-quan, Shi Min: Journal of Jinan Communications College Vol.10(2002),p.25-28, in Chinese
[7] Zhao Xiao-ci, Zhang Yi-du: Journal of Liaoning Technology University Vol.12 (2008), p.925-927, in Chinese

Introduction Due to its strength and durability, concrete is one of the most widely used building materials worldwide, and the performance of concrete structures has benefited from fiber reinforcement because fibers provide control over crack development and propagation [1].
Materials and Methods a.
Fiber characteristics The fibers used in concrete, whether steel or synthetic, provide reinforcement to the material, improve its tensile strength, and control cracking.
[6] Swamy, RN, Narayan, J., Roy, Chiam, TP (1993), Influence of steel fibers on shear strength of lightweight concrete I – Beams, ACI Structural Journal, Vol.90, No. 1, pp. 103 – 114. doi:10.14359/4201 [7] Shear behavior of concrete reinforced with steel fibers. (2012).
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On the other hand, mowing by human is a both tedious and boring manual labor, and the fuel material fired in the lawnmower will produce waste gas which may threat the workers’ health.
[2] Wang Xianmei ; Deng Ti; Liang Lingyan; Wang Zhiliang A novel smart household control system by computer vision Advanced Materials Research, v 179-180, p 264-269, 2011
,Chen,Z.B,Zhang,D.D. etc,Research on automatic detection technique for pebrine image based on computer vision,Advanced Materials Research, v 159, p 383-387, 2011 [10] Agarwala, A. et al..
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