Search results

Materials and Methods Materials Pretreated 100 % silk fabric, weight 40 g/m2 was obtained from the First Silk Wave Factory.
Kerr, et al: Family and Consumer Sciences Research, Vol. 23(1994), p.198 [3] K.
Agarwal: Indian Journal of Fibre & Textile Research, Vol. 34(2009), p.384 [5] L.
Zhou: Textile Research Journal, Vol. 79(2009), p.1402 [6] S.
CAO: Advanced Materials Research, Vol. 331 (2011), p.287 [8] J.

Introduction Polycrystalline Ni-Zn ferrites have been extensively studied owing to their large magnetic permeability, high resistivity and high curie temperature which make these ferrites excellent materials for power transformers in electronic and telecommunication application [1].
Starting materials used were reagent grade oxides NiO, ZnO and Fe2O3.
S.Shim, Journal of Alloys and Compounds 326(2001): 56~60 [5] M.
Wang, International Journal of Inorganic Materials 3 (2001): 1189~1192 [7] K.
Anthakumar, Materials Science and Engineering A355 (2003): 320~324 Samples ρ[g/cm3] μi Ms [emu/g] Hc [G] 0% 4.60 147 68.5 24.6 25% 4.81 164 74.5 22.1 50% 5.12 403 75.5 18.3 75% 5.15 266 78.9 18.9 100% 5.23 242 69.8 14.5 Table.1 Magnetic properties of Ni0.5Zn0.5Fe2O4 ferrite ceramics as a function of the ratio of nano-particles and ultra-fine powders

The Discrete Element Method (DEM) is presented by Cundall in 1971, it has become a general method to compute the contact effect of particle materials with boundary and the particle population dynamic problems [7].
The material density is 5400kg/m3, time step in the calculation is .
Pi: Journal of Nanchang University, Vol.12( 2000),p. 30
Cleary, W.Mcbride: Chemical Engineering Science, Vol.66(2011),p. 5585
F Zhang, et al.: Chinese Journal of Computational Mechanics, Vol. 16 (1999), p. 47.

Self-repairing microcapsule was produced by means of one step in-site polymerization with the shell material of urea-formaldehyde and core material of epoxy resin.
A nano test system manufactured by Micro Materials of UK was used for the nanoindentation testing, which is a pendulum-based depth sensing system, with the sample mounted vertically and the load applied electromagnetically as show schematically in Fig.1.
It can be seen that the shell material behaves as a non-linear viscoelastic material under the function of nano probe and low load which different from the macroscopical performance.
Acknowledgement The subject is supported by the National Science Foundation of China (under grant: 50735006), Key Basic Research & Development Program of China (under grant: 2007CB607601) and Research foundation of National Key Laboratory (under grant: 9140C85020406).
Schiffmann, Andreas Hieke: Wear Vol. 254 (2003), p.565 [6] Oliver WC, Pharr GM: Journal of Materials Research Vol. 7 (1992), p.1546 [7] Xin Y, Zhang W: China Surface Engineering Vol.19 (2006), p.171 Fig.7 Load-depth curves of UF resin (a) in different conditions, (b) in same test condition Fig.8 load-depth curves of UF, EP and MIC

Ni Department of Mechanical Engineering, China University of Science and Technology Taipei 11522, Taiwan cctommykimo@yahoo.com.tw Keywords: Fatigue crack growth; Stochastic model; Random process; 2024-T351 Abstract.
This distinction depends on many factors including component or structure size, material, and methods for detecting cracks etc.
Erdogan: A Critical Analysis of Propagation Laws, Journal of Basic Engineering, Transactions of ASME, Vol. 85, (1963), pp. 528-534
Elber: The Stress Ratio Effect on Fatigue Crack Closure, Damage Tolerance of Aircraft Structures, ASTM STP 486, American Society for Testing and Materials, Philadelphia (1971)
[3] Forman, et al.: Numerical Analysis of Crack Propagation in Cyclic Load Structure, Journal of Basic Engineering, Transaction of ASME, Vol. 89 (1967), pp. 459-465

Experiment Materials.
Journal of Building Materials, 2009.12(3):352-355.  
Development of autoclaved gypsum blocks[J]. new building materials. 2010, 32(12):32-33.  
Research on the High-Strength and Water Resistant Mechanism of Gypsum Base New Binding Material[J].Journal of Wuhan University of Technology, 2000,22(1):22-24.  
The Hydrated Products of Silicate Products With Industrial Refuse-Lime-Gypsum as Raw Materials[J].

Carbon areogels can be used as a catalyst support, adsorption, thermal insulation and electrical insulating materials.
At present, the research of carbon aerogels have made great progress, mostly using resorcinol as raw materials[2-5].
Fig 2 The IR spectrum of CPRF Fig 1 The IR spectrum of PRF 2.2 The Structure of carbon aerogels The aerogel is a kind of porous materials of nano network structure.
Material Science and Techonlogy, 1996, 4(2): 70-75 [3] Wang L L, Wang C Y, Tang Y J, et al.
Journal of Functional Materials, 2000, 31(6): 619-621 [6] Pekala R W.

DESIGN AND ANALYSIS OF FLAPPING WING G C Vishnu Kumar and M Rahamath Juliyana M.E.Aeronautical engineering, Hindustan Institute of Technology and Science, Chennai, India gcvish@gmail.com, rvkanmani@gmail.com Keywords-micro air vehicle, flapping wings Abstract.
A skid type fixed landing gear mechanism of light weight material is needed.
F., Experimental and Computational Investigation of the Knoller-Betz Effect," AIAA Journal, Vol. 36, No. 7, May 1998
DeLaurierCanadian Aeronautics and Space Journal,Vol. 45, No. 2, June 1999 [6] Jones K D,Bradshaw C J ,Papadopulos J,Platzer M F “Bio-inspired design of flapping-wing micro air vehicles”, The Aeronautical Journal,August 2005 (385-397)
[8] Roman Y Krashanitsa,Dmitro Silin,Sergey V Shkarayev,Gregg Abate, “Flight Dynamics of flapping wing micro air vehicle”,International Journal of Micro Air vehicles,Volume 1-2009(35-49) [9] Jones K D ,Chris J Bradshaw,Jason Papadopoulos,Max F Platzer , “Development and flight testing of flapping – wing propelled micro air vehicles”,AIAA-2003-6549.

The paper aims to present additional knowledge and data on the sulfate attack of cement based materials.
The chemical compositions of these materials are shown in Table 1.
Acidic attack of cement based materials—a review.
Construction and Building Materials, 15(2001) :331-340 [3] N.Bouzoubaa, M.H.Zhang, V.M.Malhotra.
Journal of materials in civil engineering, July-August 2001

Ball Mill Ball mill is a kind of traditional material crushing device, it has been one hundred years of development history, it is an important equipment for solid material refined flour.
Stress material layer grinding compared with other grinding method has low energy loss and high utilization rate, it can greatly improve the grindability of material and the equipment processing capacity of the system, decrease the unit power consumption, save the capital construction investment of equipment, simplify the process, reduce the broken segments.
The online analysis system determine the moving information of materials in the mill through the test of surface vibration for semi-autogenous grinding mill, obtain the wear status reports of lining board and promotion board through the analysis of materials for movement, decide and optimize the operating parameters of mill based on the detected informations whether consistent with the ore properties and process requirements.
Acknowledgements: This work was financially supported by the National Natural Science Fund (51304085) and Research Foundation of Jiangxi University of Science and Technology (jxxj12124) References [1] Quanjun Liu, Meiguang Jiang, Yunnan Metallurgy.
Vol 4 (2013), p 12 [3] Hui Wang, Guohua Gu, Journal of China University of Mining & Technology.