Search results

Hydroxypropyl starch (HPS) plays vital roles in food industry, medicine, chemical industry, etc [1,2], as it is cheap, non-toxic, odorless, stable in acid, alkali, electrolytes environment, renewable and biocompatible with many other materials for industrial applications [3].
Material and Methods Materials.Dioscorea alata, provided by College of Agriculture, Hainan University, China; propylene oxide, sodium hydroxide, anhydrous sodium sulfate, hydrochloric acid, ninhydrin, propylene glycol.
The main milling process is as follows: cleared away the sediment from materials, peeled, washed, sliced, soaked in limewater, smashed, sieved, treated in acid and lye, dehydrated, dried.
[6] Dadong Zhan, Wagu Chen, Hongjian Huang: Natural Science Journal of Hainan University.
Vol. 7-9(2011),p.5.( In Chinese) [11] Xuehong Li, Zhongdong Liu, Zhaotan Chen: Journal of Zhengzhou Grain College.

Deformation Analysis of Polyurethane Screen Deck in Linear Vibrating Screen Zerong Zhanga，Yongyan Wangb Shandong Provincial Key Laboratory Of Polymer Material Advanced Manufactorings Technology，College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao 266061, P.
It is widely used in industries ranging from the traditional mineral and metallurgical sectors to the food and pharmaceutical engineering.[1] Material particles on the screen deck surface moves by throwing, rolling or sliding motions and material granularity is widely distributed at the feed end.
Acknowledgements Financial support for this work provided by the National Natural Science Foundation of China (50974077) and the sub-project of China state 863 Hi-tech Program (2006AA04Z408-2) is gratefully acknowledged.
References [1] Huang Min, Wu Miao and Wei Renzhi: Vibration measurement and modal analysis for tunneller, Journal of Coal Science&Engineering , Vol.7-1 (2001), p.75～79
[6] HE Xiaomei, LIU Chusheng: Dynamics and screening characteristics of a vibrating screen with variable elliptical trace, Mining Science and Technology , Vol.19-4 (2009), p.508～513.

Electopolishing of p-type silicon thin films in hydrofluoric acid solutions Fei HUa, Yu Wei CHEN, Xiao Dan WANG, Xiao Hong LI School of Materials Science and Engineering, Jingdezhen Ceramic Institute, China ahufeifei@gmail.com Keywords: Electropolishing, p-Si thin film, anodic dissolution, micromachining Abstract.
It has been achieved by chemical or electrochemical methods to remove damaged surface materials and/or shape the silicon [2].
Electropolishing silicon appears practical only for p-type materials as an internal voltage barrier is formed in n-type semicondutors which cause excessive heating of the electrode before the required polishing current is attained [9].
[7] K.B.Sundaram,V.H.Desal, Journal of Materials Science, 8, 1997, 99-101
Schhwandt, Surface Science, 4,1966, 109-124

Experimental Chemicals and materials.
The texture analyser (TA.XTplus) was from Lotun Science Co., Ltd.
Barker: Journal of Cereal Science Vol. 52 (2010), p. 282-287 [5] Y.
Diao: Food Science Vol. 31 (2010), p. 86-90 [7] Y.T.
He, H.N Gao, Y.X Xu, X.M Pan, J.R Li: Advanced Materials Research Vols. 535-537 (2012), p. 2335-2339 [10] Y T He, X L Zhang, Y M Xie,Y X Xu, J R Li: Advanced Materials Research Vols. 750-752 (2013), p 1593-1596

For metal material, the push and draw stress is the same in the range of elastic deformation [10].
When the ingredients get a certain density, these materials enter the die hole.
According to the conceptual design model, the shrimp ring die diameter is determined of 420mm, the effective width is determined of 185mm. considering the strength and wears resistance requirements, 42CrMo is selected as the ring die materials.
According to the Eq. (7), Eq.(8), Eq. (9), the ring mold material to determine the equivalent elastic modulus E = 19400 MPa.
[9] Youbai Xie: China Mechanical Engineering, Vol.11(1-2)(2000), p.26~32 [10] Yancong Li: Journal of Anhui Agricultural Sciences，Vol. 39(13)2011, p.8100~8101

China Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology a szwang0001@yahoo.com.cn Keywords: Sol-gel; Highly reflective coatings; High laser-induced damage threshold.
Experiment Materials.
Acknowledgements This work was financially supported by the following funds: (1) Opening Project of Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology(ammt2012A-11)(2) the Natural Science Foundation of Henan Province (No. 122300410205); (3) Young Teachers Project of Henan Province (No.2008755009); (4) the Key Science and Technology Project of Nan Yang City (No.2010GG023); (5) the science and technology research project of the Education Department of Henan province (No.12B430017).
Liu: Journal of Tongji University (Natural science).
Zhang: Rare metal Materials and Engineering.Vol.S2 (2010), p.012.

Then, the X-ray compound refractive lenses have developed mainly in the material and the structure of lenses [3, 4, 5].
The materials of lenses include the low-Z materials, such as, Li, Be, B, C, Al, Cu, and the polymer, such as SU-8 photoresist and PMMA.
The material in the white part is taken away.
Acknowledgements This work was supported by the National Natural Science Foundation of China (Grant No.60672014) and BEPC National Laboratory.
Chinese Journal of Semiconductors.25, 26-29(2004) [10] Le Z CH, Zhang M, Liang J Q, et al.: Design and fabrication of one-dimensional focusing X-ray compound lens with Al material.

Characteristics of Rayleigh Wave According to elasticity of the elastic wave dynamics[3] and material can be determined longitudinal waves, shear waves, Rayleigh surface wave and medium elasticity coefficient has the following relationship: ,, (1) Fig.1 Rayleigh wave speedand Poisson ratio diagram The relation between and is shown in Fig.1.
[2] Shiming Wu: The soil medium wave, Beijing science press, 1997, p.135-184
[3] Tangdai Xia, Yongsheng Hu, Shunqun Yang, etc: Rayleigh potter road structure and dynamic response analysis, Journal of Zhengzhou university of technology, 2000, 21 (1), p.19-22
[4] Yunmin Chen, Shiming Wu, Tangdai Xia: With surface wave spectrum analysis method to detect the quality of road structure, Journal of Zhejiang university, 1993, 27 (3), p.309-314
[5] Tangdai Xia, Yunmin Chen, Shiming Wu: Homogeneous soft interlayer Rayleigh wave dispersion characteristic of foundation, Journal of vibration engineering, 1993, 6 (1), p.42-50.

Extended Mohr-Coulomb criterion [4] where the fracture strain with use of J2 plasticity is: , (3) where E1 and E2 are calibration constants and K is stress amplitude related to a material plasticity.
Bai: Calibration and evaluation of seven fracture models, International Journal of Mechanical Sciences, vol. 47 (2005), pp. 719-743
Wierzbicki: A new model of metal plasticity and fracture with pressure and Lode dependence, International Journal of Plasticity, vol. 24 (2008), pp. 1071-1096
Wierzbicki: Application of extended Mohr–Coulomb criterion to ductile fracture, International Journal of Fracture, vol. 161 (2009), pp. 1-20.

Y1101351), Science and technology project of Construction Department of Zhejiang Province(No.08Z028), and Science and technology project of Department of Education of Zhejiang Province(No.Y200906368).
Halaka: British Corrosion Journal.
Vitaliani: ACI Material Journal, Vol. 90 (1993) No.5, p.441
Li: Journal of Structural Engineering Vol. 129 (2003) No.6, p.753
Turriziani: Journal of the American Ceramic Society, Vol. 55 (1972) No.10, p.534