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Online since: August 2014
Authors: Ting Ting Zhang
Multi-campus distribution of human, finical and material resource and the mobility of teachers and students bring many difficulties to the school management and services.
As shown in Figure 1, the perception layer recognizes and collects the material-related information by RFID, sensor, reader, intelligent robot etc. automatically identifying objects.
Information can interact with existing realities, realizing the intelligent of campus environment, teaching materials and life, and teaching and scientific research.
Journal of Changchun College of Education,2012,(3):25-27
Journal of Gansu Union University,2013,27(3):58-61,。
Online since: October 2014
Authors: Dmitrii Cherepanov, Olga Selivanikova, Vladimir Starenchenko, Raisa Kurinnaya, Marina Zgolich
For the given reaction in materials with a FCC – lattice the angle between the axis of the dislocation and the Burgers vector, which characterizes the type of dislocation, equals to the angle of the gliding dislocation to the intersection line of glide planes.
Starenchenko, Calculation of lengths of dislocation combinations in FCC crystals, Russian Physics Journal. 47 7 (2004) 19-25
Kurinnaya, Formation of extended compound dislocations and barriers in the course of interdislocation reactions in FCC crystals, Russian Physics Journal. 52 3 (2009) 25-30
Natural and Technological Sciences. 18 4 2 (2013) 1554-1555
Slobodskoy, Plastic strain models in materials with a FCC structure, Publishing NTL, Tomsk, 2011
Online since: July 2017
Authors: Ying Hui Zhang, Feng Zhou, Geng Hou, Fu Lai Zhang, Wei Dong He
The materials of gears are used by 18CrNiMo7-6, using carburizing and quenching treatment, the limit value of tooth contact fatigue strength is σHlim=1500MPa, the limit value of bending fatigue strength is σFlim=700MPa after the heat treatment.
The tooth profile modification is to remove part of the materials on the gear profile, thereby reducing gears interference in meshing process and the load fluctuation. 4.2 The determination of modification In Ref.[3],it is mentioned that the optimum modification curve is related to the amount of TPM(tooth profile modification) and modification coefficients.
Chinese Journal of Mechanical Engineering .pp.265-266, 2013
Journal of Mechanical Science and Technology.pp.264-265, 2012.
Online since: July 2015
Authors: Md. Raisuddin Khan, Moinul Bhuiyan, Md. Azhar Ali, Abdul Mannan, Marsad Latief, Tanveer Saleh
The increase in temperature is because of conduction, convection and radiation modes of heat transfer, from air inside the car, heat absorbing materials and glass and car body respectively, while radiation is the most influential factor for increase in temperature of parked car [2].Temperature variation inside the car depends on two important factors i.e., thermal radiation exchange between the environment and car body and the radiations absorption in the interior of the car cabin [3].
Hasanuzzaman, “Performance of an Improved Solar Car Ventilator”, International Journal of Mechanical and Materials Engineering (IJMME), Vol. 4 (2009), No. 1, 24 -34
American Journal of Applied Sciences 7. vol. 6, pp 784-789, 2010
Online since: January 2012
Authors: Qiang Guo, Lu Tang, Yan Bei Chen, Xiang Liang Ning
National Science Foundation NSF (San Francisco Golden Gate Bridge seismic retrofit project is a example) and American Highway Innovative Technology Evaluation Center of the American Society of Civil Engineers has organized a large concentration of pre-testing and identification to the dampers and vibration isolation devices, which are world's most advanced, has been and to be used in engineering (HITEC) [1].
Fluid viscous damper with viscous damping material as medium and effectively responsive to the passive control and velocity [3], hydraulic damper is a kind of energy dissipating and shock-absorbing device.
The viscous damping materials in fluid viscous dampers are always hydraulic oil or silicone oil.
Chinese Journal of Mechanical Engineering.
China Civil Engineering Journal.
Online since: May 2011
Authors: Yan Yan Liu, Zhong Wen Huang, Tian Qing Ling
The main reason is that in reinforcement projects, as long as geogrid is assigned properly, the lateral deformation of soft foundation can be restrained by the frictional resistance between the geogrid, filling materials and sand cushion.
(2)Because of the lateral constraint function, the geogrid reinforced stone-pile can bound broken stone materials together tightly and limit the lateral deformation of piles, thus improve the bearing capacity of broken stone-pile.
[2] The Soft Ground Strengthening (Science and Technology Press, Shanghai.2002), in Chinese
[3] Zhigang Zhou and Qisen Zhang: Journal of Geotechnologe ,Vol. 19(1997), p. 58-62, in Chinese
[5] Shuwang Yan and BenBar: Journal Geotechnologe., Vol. 11(1997), p. 56-61, in Chinese
Online since: May 2011
Authors: Li Na Yu, Qing Li Yang, Jie Bi, Chu Shu Zhang, Feng Zhu, Jie Sun, Shao Fang Liu
Materials and methods Plant material Flowers of B. papyrifera were collected from Arboretum of Zhongshan, Qingdao Shandong Province, PR China in september 2009.
Ashed material was dissolved in 2 mL of concentrated HNO3, evaporated to dryness, heated again to 450℃ for 3 h, dissolved in 1 mL of concentrated H2SO4 and 2 mL of concentrated HNO3, and diluted with distilled water up to 25 mL.
D.Kinghorn, Journal of Natural Products, 2001. 64, 1286-1293
[6] Commission Regulation (EC) No. 466/2001 Official Journal of the European Communities 16.3.2001.
Food Science. 2008. 29, 411-417(in Chinese).
Online since: March 2010
Authors: Jian Hua Zhang, Xue Hui Shen, Tian Jin Yin, Chun Jie Dong
This technology has been widely used among different workpiece materials.
Fig.2 Illustration of experimental setup Fig.3 Photo of experimental setup Table 1 Experimental contents Tool type and material: Two-flute carbide micro-end mill with a diameter of 2mm Workpiece material: Low carbon steel Working conditions: Slot down-milling with spindle speed of 15000r/min, 7µm feed per tooth and 0.5mm depth of cut Vibration conditions: Vibration with amplitude of 10µm and frequency of 20KHZ Workbench Dynamometer Transducer Spindle Tool Workpiece Booster Result Comparison and Discussion In this section, proposed chip thickness and cutting force model presented as expressions Eq.(5) - Eq.(8) has been tested on experimental data.
Acknowledgment: Project supported by the National Science Fund of China (NSFC), No. 50875157; and 973 program of China, No.2009CB724402.
International Journal of Machine Tool & Manufacture.38 (1998), p.1419-1436
International Journal of Machine Tool and Manufacture. 40(15)(2000),p. 2155-2173.
Online since: October 2010
Authors: Mikko Hupa, Leena Hupa, Na Li, Patrik Yrjas
Laboratory study of Corrosion of an alumina refractory by molten potassium salts Na Li1, 2, a, Leena Hupa1, c, Patrik Yrjas1, Mikko Hupa1 1Process Chemistry Centre, 2Graduate School of Materials Research,ÅboAkademi University, FI-20500,Åbo, Finland aNa.Li@abo.fi, cLeena.Hupa@abo.fi Key Words: alumina refractory,potassium salts, high temperature corrosion Abstract.
Corrosion of refractories and ceramic components by oxygen, steam, acidic or basic vapours, molten salts and coal slag of various types at high temperatures has been discussed in literature [[] Ueno S., Ohji T., Lin T.H., Corrosion and recession of mullite in water vapor environment, Journal of the European Ceramic Society 28, 2008, pp. 431–435 ,[] Curkovic L., Jelaca M.F., KurajicaS., Corrosion behavior of alumina ceramics in aqueous HCland H2SO4 solutions, Corrosion Science 50, 2008, pp. 872–878 ,[] Strobel T.M, Hurley J.P., Coal-ash corrosion of monolithic silicon carbide-based refractories, Fuel Processing Technology 44, 1995, pp. 201-211. ,[] Takahashi J., Kawai Y., and Shimada S., Hot Corrosion of Cordierite Ceramics by Na- and K salts, Journal of the European Ceramic Society18, 1998, pp. 1121-1129 ].
,Materials and Corrosion,2006, 57,No.2. ].
Online since: July 2006
Authors: Jacob Jorne, Santosh Kurinec, Cody Washburn
Various techniques have been employed in deposition and patterning of magnetic materials such as physical vapor deposition followed by etching or electroplating [1, 2].
High frequency magnetic materials are oxide based ceramics and are therefore difficult to evaporate, sputter, plate and selectively etched.
This work has been supported by the National Science Foundation for under the grant # ECS-0219379.
Ito: "Microfabrication and characteristics of magnetic thin-film inductors in the ultrahigh frequency region", Journal of Applied Physics, 85,(1999), 7919-7922 [2] M.
Sci., 39(3), (2004), pp 771-778 [4] Ferronics V Material Product Catalog: http://www.ferronics.com/catalog/materials.pdf [5] S.