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Introduction Brittle materials, such as ceramics, silicon, glass, and sapphire, have been widely used in many high-tech fields such as aerospace, electronics and optics etc.
As a promising processing technique for hard and brittle materials, ultrasonic assisted grinding (UAG) can enhance the machining efficiency and also improve the surface integrity.
Considering that the stiffness and the hardness of the diamond material is greater than workpiece material, the grain material is defined as a rigid.
Limido, et al.: International Journal of Mechanical Sciences. 49 (2007) 898-908
Wu, et al.: Materials Science Forum. 471-472 (2004) 101-106

Materials and methods Materials. 2,2-diphenyl-1-picrylhydrazyl (DPPH), Alcalase, and Trypsin(1:250) were obtained from Sigma; 4-Nitrophenyl Laurate (p-NPL), 2,2'-azino-bis(3-ethylbenzo-thiazoline-6-sulphonic acid) (ABTS) were purchased from Tokyo Chemical Industry.
Generally, DPPH tend to be used to determined the water soluble materials, however, ABTS is usually used to detection all water- and fat-soluble materials, reflecting the total antioxidant levels.
Journal of Food Engineering.
JOURNAL OF BIOSCIENCE AND BIOENGINEERING.
Advanced Materials Research.

In this paper, an alternative aseismic system for bridge with pile-cap foundation called a separated pile-cap with proper material set in the gap layer was proposed.
But when it comes to the separated cap, it has a bigger cross section area and there are multiple choices for the material placed in the middle gap which could provide great adaptability and flexibility.
Acknowledgement This research is supported by the Ministry of Science and Technology of China under Grant No.
SLDRCE09-B-08, Kwang-Hua Fund for College of Civil Engineering, Tongji University, and the National Natural Science Foundation of China under Grants No. 50978194, 90915011 and 51278376.
References [1] G.W.Housner, The behavior of inverted pendulum structures during earthquakes, Bulletin of the Seismological Society of America, Vol. 53(1963):403-417 [2] M.P.Enull, K.Kawashima, Rocking isolation of a typical bridge pier on spread foundation, Journal of Earthquake Engineering, Vol. 9, Special Issue 2(2005):395-414 [3] C.T.

Materials and Experiment Method Materials a).Cement: P.C32.5 composite Portland cement from Hua Xin factory in Hubei Province, China.
PP (polypropylene) fiber: PP fiber from Tian Hui Fiber Materials Factory in Wuhan.
Journal of Building Materials. 2 (2001) 143-147.
Journal of Building Materials. 1 (2001) 1-6.
Journal of Chongqing Jiaotong University (Natural Science Editions). 3 (2008) 408-412.

Experimental materials The AACB structure studied is shown in Fig. 1.
Materials Science & Engineering A, 2017, 698: 63-72 [3]C P Jiang et al., Wear Resistance and Bond Strength of Plasma Sprayed Fe/Mo Amorphous Coatings [J].
Journal of Materials Research and Technology, 2020, 9(6):16367-16377
Key Engineering Materials, 2016, 4274(703-703): 119-122
Materials Today: Proceedings, 2018, 5(1): 2773-2780

When different external forces act respectively on the same material or the same external force acts on different materials, the elastic waves will have different characteristics.
However, AE of grinding is transient elastic energy spontaneously released when materials undergoing deformation or fracture or both.
The acoustic waves of grinding are mixtures of several acoustic wave sources, such as grain fracture, coolant turbulence, materials deformation and thermal expansions.
Thermal Behaviour of Materials During grinding, material deformation energy transforms into thermal energy which may go into four heat sinks - chips, wheel, workpiece and coolant.
Holford: Key Engineering Materials, Vol. 204-205 (2001), pp. 351-358

The gold has its lower eutectic point than other materials and deposited on silicon wafer as the catalyst for silicon nanowire synthesis.
The results showed that the low turn-on filed of the nanowire was comparable with the published materials.
Chueh: Advanced Materials, Vol.18 (2006), pp.650-654 [4] J.H.
Yong: Journal of Crystal Growth, Vol.271 (2004), pp.99-104
Li : Applied Surface Science, Vol.253, Issue 2 (2006), pp.792-796

It has been proved that quasi-guided modes in Bragg fibers with the finite number of cladding pairs are slightly leaky if the cladding is not too thin and the index contrast of high/low dielectric material is large enough[9].
Acknowledgments: This work was supported in part by AnHui Science Foundation KJ2012A241 and Science Foundation for youthful elitist of AnHui’s university 2010SQRL022ZD and 2012SQRL99ZD.
Journal of lightwave technology, Vol. 26, No. 13, July 1, 2008 [5] Shangping Guo, Sacharia Albin “Comparative analysis of Bragg fibers” [J].
Journal of lightwave technology, Vol. 20, No. 3, March 2002 [10] Konstantin Y.
Science 311, 189 (2006)

Applications Analysis of the Technology of Mold Electromagnetic Stirring in A Steel Mill LIAO Yali1,a , YAO Yufeng2,b 1Applied Technology College, University of Science and Technology Liaoning, Anshan 114011，China 2Ansteel Engineering Technology Corporation Limited, Anshan 114021, China ayyflyl@163.com,basyaoyufeng@163.com Keywords: EMS; M-EMS; Continuous Casting; Square Billet Abstract.
l Infusion nozzle refractory material is eroded, service life is influenced. 3.2 Solutions It’s rational to choose the position of M-EMS assembly to solve the above problems[3].
Journal of University of Science and Technology Beijing, S1（2007）77-80
Journal of Northeastern University(Natural Science Edition), 10（2010）63-67

A Type of Fighter Dynamics Modeling and simulation Dingxuan Zhao 1,a, Yingjie Li 1,2,b , Guojun Yang2 , Qingbo Hao2, Gang Liu3 and Miao Xu1 1 College of Mechanical Science and Engineering, Jilin University, Changchun, China 2 Base of Foundation, Aviation University of Airforce, Changchun, China 3 Development College of Jilin Agricultural University, Changchun, China a zdx@mail.jlu.edu.cn, b yingjie9527@sina.com Keywords: Dynamics model; Lagrange equation; Runge-Kutta method; simulation; fighter Abstract.
Moreover, it also has the advantage of reducing risks, saving time, economizing manpower and material resources [1].
Acknowledgment This paper is supported by the projects of industrialization and promotion of motion on-line simulation and synchronous recording technique(20080506) and development research of Inertia control suspension technology(20090335) which are both key project of development programs in science and technology of Jilin Province.
[2] S J Zou, M Q Hu and J L Li: Journal of Air Force Engineering University, vol. 6(2005) No.6, p.10–12
[3] W L Fang and X K Shen: Journal of Zhejiang University-Science C, vol.11(2010) No.11, p. 911–918