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Basic conceptsof biofuels Biofuels include all agricultural and forestry products or their by-products, industrial waste, garbage and other biological organisms and theirmetabolicwasteas raw materials for fuel.
Two mainbiofuel production Bioethanol.Bioethanol is made of biological materials with rich starch,sugar through the process of fermentation and distillation.
The main raw material for biodiesel productionare rapeseed, soybean, palm and sunflower and other oil crops in Europe.Other materials such as waste cooking oil, animal fats alsohavebegun to be used.Biodiesel extractedfrom theseedsof atrophy has already been used on Air New ZealandandContinental Airlines aircraft.
Since the Etuis not a major crop-producing country, production of biodiesel raw materials relies heavily on import from other countries.
Journal of the Science ofFood and Agriculture, 2006, 86(12),p. 1755-1768

Study of Process of Hot-Dipped Galfan Coating on Q235 Structural Steel An Du1, a, Ruina Ma2, b, Yongzhe Fan3, c, Peng Zheng4, d and Xiaoming Cao5, f 1,2,3,4,5School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China;Key Lab. for New Type of Functional Materials in Hebei Province, Hebei University of Technology, Tianjin, China aduan200005@aliyun.com, bmaryna@126.com, cfyz@hebut.edu.cn, dxiaobaizhinu@qq.com, fgd_sam@galvanize.com.cn Keywords: Galfan, hot dipping, flux, coating thickness Abstract.
Introduction Many innovative materials have been emerged in recent years and applied in machinery, building and other fields, but steel is still used as the main construction material for automobiles, appliances and industrial machinery.
However, due to its susceptibility to corrosion, using coating to protect this material from corrosion is imperative.
Journal of HeBei University of Technology. 40(2011)70-77 [9] A.
Transactions of materials and heat treatment. 31(2010)144-148

The soil and structural material parameter are shown in Table 2.
In the first instance, remove the soil elements in the rear of shield, and install concrete materials to replace the lining.
Install shield materials to replace the element materials where EPB shield machine are, until the excavation position has been fixed in advance
The EPB shield machine press onward one ring at a time and the element materials should make corresponding adjustment.
China Railway Science, Vol31(2010) ,P.53, In Chinese [4] Pan Zeng: Finite Element Analysis and application.

Due to the limitation of the surrounding matrix materials, the metal material in the molten pool will suffer from the constraint stress.
Acknowledgement This study is supported by National Natural Science Fund of China (11172191) , Jiangsu Province Joint innovation fund of industry-university-research cooperation(BY2012109) and Colleges Natural Science Fund of Jiangsu Province (12KJB460008).
Laser Journal. 2010; 31(5)
The Influence of Ring Inside-Laser Coaxial Powder Feeding Process Parameter on Forming.Advanced Materials Research,2012:120-124
Advanced Materials Research,2012:441-445.

Materials and Methods The semi-finished products in this study were cylindrical steel bars made of AISI 4140 with a diameter of 30 mm and a length of 130 mm.
Soundararajan, Residual Stresses in Case Hardened Materials, The Open Materials Science Journal 4-1 (2010) 92–102, doi: 10.2174/1874088X010040300092
Schillé, Using JMatPro to model materials properties and behavior, Journal of the Minerals, Metals & Materials Society 55-12 (2003) 60–65, doi: 10.1007/s11837-003-0013-2
Dean, Effects of surface treatments and lubricants for warm forging die life, Journal of Materials Processing Technology 113-1-3 (2001) 544–550, doi: 10.1016/S0924-0136(01)00693-8
Yoshida (Eds.), Forming the Future (The Minerals, Metals & Materials Series), Springer International Publishing, Cham, 2021, pp. 2289–2301

Nanocrystalline Diamond Film Deposited by Double Bias-voltage Assited HF-PECVD System Yong ZHANG1,a, Enlei ZHANG2,b and Zhaolong LIN1,c 1College of Materials Science and Engineering, Xiamen University of Technology, Xiamen Fujian 361024, P.R.
Science. 247(1990) 688-696
Diamond and Related Materials. 17(2008) 2037-2040
Kravets,, et al, Defect spectroscopy of nanodiamond thin layers, Diamond and Related Materials. 15(2006) 559-563
Tsysar, Studies of topological features of the HFCVD surface of a nanocrystalline diamond film using a scanning tunneling microscope with a diamond tip, Journal of Superhard Materials. 34 (2012) 256-263

In recent years, many researchers have demonstrated that these materials have added value and are not waste.
Efforts in finding uses for these materials and for coordinating the supply of these materials with a concurrent demand are now growing [3].
Asian Social Science   ISSN 1911-2017, (2011)
Schnik, Managing Dredged Materials in the State of Minnesota”, Minnesota, United States of America.
Makusa, Soil stabilization methods and materials, 38.

.), workpiece material parameters and the parameters of the electrolyte, the electric double layer equivalent circuit constant with mathematical expression.
Introduction Electrochemical machining (ECM) is a kind of processing method removing anode metal material to obtain the required structure in the electrolyte.
Using electrochemical reaction in the transient process of high speed dissolution removing anode workpiece materials, can reduce the electrochemical polarization, control electrochemical reaction step, and reduce the stray corrosion, thus improving the localized corrosion ability.
Acknowledgments The work was financially supported by the Natural Science Foundation of China (51105279, 51275360), the National Basic Research Program of China (973 Program: 2011CB013800) and the Fundamental Research Funds for the Central Universities.
References [1] Spieser, Alexandre, Ivanov and Atanas: International Journal of Advanced Manufacturing Technology Vol. 69 (2013), p. 563-581 [2] Rajurkar K P, Zhu D, McGeough J A: CIRP Annals-Manufacturing Technology Vol. 48 (2013), p. 567-579 [3] Schuster R, Kirchner V, Allongue P: Science Vol. 289 (2000), p. 98-101 [4] Xu Jia wen: Electrochemical Machining Technology (National Defence Industry Publications, Beijing 2008)

Moreover, vanadium compounds are considered as a kind of promising material for advanced redox batteries for their superior energy storage properties.
Acknowledgment We acknowledge financial support from the International Collaboration between National Science Foundation (NSFC) and National Research Foundation (NRF) of Korea (510111140343), the Major Program of National Natural Science Foundation under Grand No. 51090382, and National 863 Project of China under Grand No. 2009AA06400.
Walsh, Redox flow cells for energy conversion, Journal of power sources 160 (2006) 716-732
Skyllas-kazacos, Investigation of the V(V)/V(IV) system for use in the positive half-cell of a redox battery, Journal of power sources 16 (1985) 85-95
Skyllaskazacos, A Study of the V(Ⅱ)/V(Ⅲ) Redox Couple for Redox Flow Cell Applications, Journal of power sources 15 (1985) 179-190

Finite Element Analysis of Chromium Layer for Cold Roller based on Material Properties and Mechanics Properties Juan Wang1, a, Siyu Lai2, b, Jin Zhou3, c 1College of Computer Science, China West Normal University, NanChong, China 2 Department of Medical Imaging, North Sichuan Medical College, NanChong, China 3 Materials and Metallurgy Engineering Institute, Wu Han, China awjuan0712@126.com, blsy_791211@126.com, cZZ_JJ013@126.com Keywords: finite element method, chromium plating, hardness, thickness, stress Abstract.
The unreasonable materials selection, design and manufacture craft for rollers are prone to make failure that are mainly consist of spalling, fracture, crack, etc.
The following assumptions should be given in modeling process: 1) the material is uniform and isotropic; 2) the rollers and ingots are both defined as the deformable body, the physical properties of the material (specific heat, thermal conductivity, yield strength, elastic modulus and thermal expansion coefficient) change with temperature; 3) the Coulomb friction model is adopted in rolling process; 4) the mentioned material subjects to MISES rules; 5) the behaviors within plastic zone obey liquidity guideline and hardening law.
Wear is caused by grinding from material and roller which is subject to periodic load, and mechanical fatigue will appear on surface.
Chinese Journal of Mechanical Engineering 2008, 42 (1): 190-194