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Decreasing Defects of Center Porosity and Improving Secondary Pipe Castings for Superalloy Ingots by Dynamics Methods Chao Wanga, Zhenrui Lib, Yongji Niuc, Shifeng Shid and Ning Ane Beijing Beiye Functional Materials Corporation, Beijing 100192 China agbdwang@163.com,blizhenrui@bygcg.com, cniuyongji@163.com, dshishifeng@bygcg.com, eanning1358@163.com Keywords: Ingot, Center porosity, Secondary pipe, Vibration, Dendrite.
Introduction Superalloy is an important structural material in the field of aviation, aerospace, ships, power generation, petrochemical and transportation industries.
Improvement of tundish shape and optimization of flow control devices for sequence casting heavy steel ingots[J].International Journal of Minerals, Metallurgy, andMaterials,2012, 19(1):15-20
Journal of Materials Processing Technology, 1998, 77:300-304
Materials Science and Engineering: A, 2005, 395(1): 226-232

Additional carbides of materials such titanium (Ti), tantalum (Ta), vanadium (V) and niobium (Nb) build mixed carbides, which increase the hardness and abrasion resistance of the sintered substrate at high temperatures [9, 10].
This indicates a higher material removal (Figure 5).
Fournelle: Morphology of metal surface generated by nylon/abrasive filament brush, International Journal of Machine Tools & Manufacture 43, 2003 [8] L.
Cariapa: Development of force-control model for edge-deburring with filamentary brush, ASME Journal of Manufacturing Science and Engineering, August 2001 [9] B.
McCormick: Use of Computer Simulation in the Measurement of WC Grain Size, PM World Congress on Hard Materials, 1998 [10] P.

Torque Shaft Material Selection Torque shaft is one of the important components of the shearer cutting unit, so the material selection must be reasonable and can meet the certain fatigue strength, impact strength, and consistent with the arm shaft gear material.
The high - quality tempered steel 20CrNiMo with excellent  mechanical properties is able to meet the force of the torque shaft complex stress environment, so 20CrNiMo is selected as the torque shaft materials.
In the FEA Editor，Selected Analysis Type→Static Stress with Linear Material Models→Element Type→Block→Material→Modify Material→Meah→Model Mesh Setting→Add→Nodal Moment→Perform Analysis, the result was shown in Fig.4.
Journal of Heilongjiang Bayi Agriculural University，2009(5),p25
Journal of Mechanical Transmission，2012(4),p89

Extraction Process of Selenium Polysaccharide in Hedgehog Fungus and Determination Analysis of Chemical Components Ding, Jun Harbin University of Science and Technology, Harbin, Heilongjiang Province, China Email:2109435@163.com Keywords: Hedgehog Fungus, Selenium Polysaccharide, Extraction Process, Method Abstract: The target of the paper is to study the method of extracting polysaccharide containing selenium from Hericium erinaceus by using the method of water extracting-alcohol precipitating.
Extraction process of selenium polysaccharide in selenium-rich hedgehog fungus 1.1 Experiment materials 1.1.1 Starting materials: selenium-rich hedgehog fungus 1.1.2 Reagent: nitric acid, phenol, sodium hydroxide, 95% of ethyl alcohol,absolute ethyl alcohol, diethyl ether, chloroform, n-butyl alcohol alpha-phenol reagent, 5% of ninhydrin anhydrous acetone solution, 1% of CuSO4 solution, standard glucose. 1.1.3 Instruments: UV-754 type spectrophotometer, Hitachi650-10s type fluorescence spectrophotometer, thermostat water bath, freezer dryer. 1.2 Test method and design 1.2.1 Technological process: preparing the anhydrous substance of selenium-rich hedgehog fungus→smashing (12-mesh sieve) →adding water and soaking-heating-boiling (three times) →filtering→concentrating→filtering→forming alcohol precipitation→centrifuging and obtaining precipitate→removing protein (seavg method) →performing alcohol precipitation→depressurizing and drying→obtaining the finished product of selenium
Detection of contents of nine inorganic elements in the selenium-rich hedgehog fungus by the atomic absorption spectrophotometry. 2.1 Materials and Methods 2.1.1 Materials: Selenium-rich hedgehog fungus and hedgehog fungus entity cultivated at Harbin Changfa Edible Fungi Research Institution in 1999. 2.1.2 Instruments and Reagents: GGX-9 type microprocessor flame atomic absorption spectrophotometer, hollow-cathode lamp, nitric acid, hydrochloric acid, perchloric acid (guarantee reagent) de-ionized water. 2.2 Test method: grinding the anhydrous substance of hedgehog fungus and selenium-rich hedgehog fungus substance, weighing 0.2500g of powder, adding water and wetting the powder in a beaker of 100ml; adding 2ml of nitric acid, 6 ml of hydrochloric acid and 1ml of perchloric acid to disinfect, cook and braise till white smoke appears; taking off the solution when it is in transparent color, cooling and adding 2ml of hydrochloric acid (1+1) and a small amount of water; after dissolving
Chinese Journal of Biochemical Pharmaceutics. (2003) [3] Liang Ying, Xia Yuanliang: A Study on the Condition for Extracting Technique of Auricularia Auricula Polysaccharide.
JOURNAL OF HEILONGJIANG AUGUST FIRST LAND RECLAMATION UNIVERSITY. (2000)

Materials The conventional hydraulic fluid used in this study as the benchmark was Shell Tellus S2M.
All the tests of physical properties were conducted and reported by the laboratory of the Department of Science Service, Ministry of Science and Technology, Thailand.
Syahrullail, Hydraulic field test rig and evaluating plant oil performance, International Journal of Mechanical and Mechatronics Engineering, 11 (2011) 19-25
Oxidative stability of Red Palm Oil from Two Oil Palm Varities – Elaeis guineensis and Elaeis oleifera, Comparative Effects of Storage Temperature and Duration, Croatian Journal of Food Science and Technology, 5 (2011) 18-22.

On turns round including the water body is the hole room adjacent formation transfusion and water-inflow material base.
Sample gain.According to the scene actual material may determine that the influence tunnel adjacent formation transfusion water-inflow control factor value to for details shown in Table 1, the first 10 group of achievement study sample, the latter 2 groups of data take the test sample.
Modern Tunneling Science and Technology, 2001: 497–502
International Journal Of Rock Mechanics And Mining Sciences , 2005 ,42 (1) : 3212
Chinese Journal of Rock Mechanics and Engineering,2004,23 (9):1450-1453.

Acknowledgements The authors would like to acknowledge the large grant provided by the scientific research development program (2009G003-C, 2010G004-J) of China Ministry of Railway and the Natural Science Foundation of Hebei Province (No.
Fatigue test. edtied by Shanghai Science and Technology Publishing House (1984) [3] Zhenhuan Rong, Yuling Zhang, Xiaoguang Liu.
China Railway Science 29(2) (2008), p. 48-52.
International Journal of Fatigue 28 (2006), p. 409-416.
Journal of Bridge Engineering 8(5) (2003), p. 323-333

Identification of Amber and the Copal under Heat Pressurized Process Hui Li1, a, Xuan Wang1,b , Yong Zhu1,c ,Qing Ren2,d 1Chongqing Academy of Metrology and Quality Inspection，Chongqing 401123，China 2College of Materials Science and Engineering, Chongqing University, Chongqing 400044,China alihui@cqu.edu.cn, bwangxuan0511@126.com, czhuyong@126.com, drenqin@cqu.edu.cn Keywords: amber; copal; heat pressurized treatment; thermal analysis; identify Abstract.
These characterization are of great significance for the identification between amber and copal and the heat pressurized treatment copal References [1] Sanderson M.W., Farr T.H.: Science Vol.131(1960), p.1313 [2] J.Robles, A.Martinez Richa, M.Villanueva: Computational and Theoretical Polymer Science Vol.10(2000), p.473
[6] Yiping Yang, Yamei Wang: Journal of Gems and Gemmology Vol.12(2010), p.16, In Chinese
[9] Lijian Qi, Xinqiang Yuan, Ming Chen, et al: Journal of Gems and Gemmology Vol.5(2003), p.1, In Chinese.

The Numerical Simulation of Three-Dimensional Dynamic-mesh Flow Field of a hydraulic buffer PENG Songjiang1, a, ZHOU Cheng2,b and YU Cungui3,c 1No. 713 Institute of China Shipbuilding Industry Corporation, Zhengzhou 450015, Henan, China 2China Sanjiang Space Group, Wuhan 430040, Hubei, China 3Nanjing University of Science and Technology, Nanjing 210094，Jiangsu, China appssjj713@tom.com, bzhoucheng_009@163.com, cyu_cungui@sina.com Keywords: Hydraulic buffer, Dynamic meshes, Three-dimensional flow field, Cavitation Abstract.
The reason is that: when local pressure has dropped to the saturated vapor pressure of liquid or separated pressure of air, cavitation phenomena will occur inside liquid or at liquid-solid interface, these bubbles will impact on the surface of material when these bubbles burst, causing dropout of material.
Journal of Nanjing University of Science and Technology (Natural Science), Vol. 34(4) (2010), p.533-536
Journal of Gun Launch & Control, 2010(4), p.63-65

Statistics Conclusions The project aims at developing a set of crane structural health monitoring system based on Internet of Things which applied to strong wind and rain, lighting, dust and other harsh environments; Ultimately achieve remote real-time monitoring of lifting machinery metal structure in the case of operation; Via the method of visiting many ports in Guangzhou and theoretical calculation by the technology of ANSYS and ADMAS, we add up crane metal structure relationship between allowable stress and time, then we added up data and got accurate function graph, finally achieving extraction and accurate identification method of stress and strain key features signal of crane metal components; based on the Internet of Things mode of lifting machinery and sensor monitoring database technology, successfully develop the mechanical structure of health risk level evaluation criteria and structural health warning technology; Acknowledgements This work was financially supported by science
and technology projects of AQSIQ (2012QK069), special safety fund project of Guangdong Province (2012-7), the Pearl River Science & Technology New Star Project (2013075), the National Natural Science Foundation of China (51205069), and the Foundation for Distinguished Young Talents in Higher Education of Guangdong (2012LYM_0021).
Journal of Sound and Vibration. 1998, 218(5): 825-844
Sensors Journal, IEEE. 2013, 13(1): 400-407
Applied Mechanics and Materials. 2013, 333-335: 1629-1634.