Search results

In this work, the use of heterogeneous catalyst sourced from local raw materials (kaolin and eggshell) for the production of biodiesel from oil of desert date seed has been investigated.
African Crop Science Journal, 21 (2013) 723-734
ARPN Journal of Engineering and Applied Sciences, 8(7) (2013) 473-479
ARPN Journal of Engineering and Applied Sciences, 8(5) (2013) 338-347
ARPN Journal of Engineering and Applied Sciences, 9(2) (2014) 98-108

Materials and methods PCL pellets (Mw = 70,000-90,000), gelatin powder were purchased from Sigma-Aldrich.
Mishra, Fabrication and characterization of PCL/gelatin composite nanofibrous scaffold for tissue engineering applications by electrospinning method, Materials Science and Engineering. 3 (2013) 1228-1235
Ramakrishna, Polypyrrole-contained electrospun conductive nanofibrous membranes for cardiac tissue engineering, Journal of Biomedical Materials Research Part A. 99A (2011) 376-385
Lee, Hydrophilized polycaprolactone nanofiber mesh-embedded poly(glycolic-co-lactic acid) membrane for effective guided bone regeneration, Journal of Biomedical Materials Research Part A. 91A (2009) 400-407
Chung, Electrospun nanofibers composed of poly(ε-caprolactone) and polyethylenimine for tissue engineering applications, Materials Science and Engineering: C. 29 (2009) 1725-1731

Material Mechanical Performance about Worm Bending and Twisting Deformation for Civil Engineering Xuqin Chen1, a, Guilan Jiang2, b, and GuangZhen Cheng1, c 1Huzhou Teachers College, Huzhou, Zhejiang Province 313000, P.R.
Shaft material is 45 steel, with quenching and tempering treatment, [σ]=60N.mm.
Shan: Mechanics Materials (Higher Education Press, China 2008) (in Chinese)
Liu: Journal of Changsha Railway University (social science edition) 2004(12), pp.147-148 [4] G.Z.
Liu: Materials Mechanics (Higher Education Press, China 2004) (in Chinese) [6] Y.J.

Developments in materials available for AM have expanded into metal matrix composite materials.
Gadaud, Additive layer manufacturing of titanium matrix composites using the direct metal deposition laser process, Materials Science and Engineering: A 677 (2016) 171-181
Xi, Research on development of in situ titanium matrix composites and in situ reaction thermodynamics of the reaction systems, Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material 13(6) (2006) 551-557
Pohl, Effects of laser sinterinng processing parameters on the microstructure and densification of iron powder, Materials Science and Engineering: A 359(1-2) (2003) 119-128
Rubenchik, Observation of keyhole-mode laser melting in laser powder-bed fusion additive manufacturing, Journal of Materials Processing Technology 214(12) (2014) 2915-2925

As the high-tech materials appeared, sports performance is developing rapidly.
The appearance of new technique and new materials has made the athletes' performance rapidly upgraded.
In twentieth Century, our country has researched about nano materials and exercise ligament injury.
Journal of Journal of An qing Teachers College, natural science, 2004, (4) [9]LI Chun-yan,LIU Xing-liang,XIAO Yan-fen.
Study of Application and biosafety of Nano materials in Sports Engineering [J].Sports science of human body.2011,(9):100 [10]YE Ling, SU Qin, ZHOU Xuedong.

In order to profound the function of stress wave in vibration turning and present the effectiveness of instant change of stress and strain in the workpiece under the shock load, put forward a simulation model of materials obeying Prandtl-Reuss flow principle with non-linear constitutive relation for vibration turning with low frequency.
Acknowledgements The study is supported by Fujian Natural Science Fund (2010J01295) and by Xiamen Science and Technology Project Fund (3502Z20093031), also by Heilongjiang Natural Science Fund (E201043) References [1] Kamel, M M, El-Ganaini, W A A, Hamed, Dr: Journal of Mechanical Science and Technology, Vol. 23(8)( 2009), p. 2038 [2] L Zesheng; Y Liang.
Journal of Harbin Institute of Technology, Vol. 40(9)( 2008), p. 1400
J. of Rock Mechanics and Mining Sciences, Vol. 46(3)( 2009), p. 471 [10] L Zesheng; Y Liang.
Journal of Harbin Institute of Technology, Vol. 40(9)( 2008), p. 1400.

Acknowledgment Work was supported by the National Natural Science Foundation of China (Grant No. 10972030) References [1] B.
Jiang: The Chinese Journal of Nonferrous Metals Vol. 16 (2006), p. 35 [2] W.X.
Zhao: Materials Science and Technology Vol. 15 (2007), p. 746 [4] X.Y.
Tang: Material and heat treatment Vol. 38 (2009), p. 7 [6] B.
Sarma: Materials Science and Engineering Vol.

The developments of Kirkendall's idea for sub-surface (SS) and grain boundary (GB) interdiffusion have been considered and applied for the advanced structural materials, such as thin films and nano-composites.
AIME" journal and rejected as wrong by referee R.F.
Mehl, who was a powerful figure in science, Director of the Material Metal Research Laboratory, Carnegie Institute of Technology.
Conclusions Kirkendall's concept on the material flow during interdiffusion of components with unequal partial diffusion coefficients was developed for the advanced structural materials, such as thin films and nano-composites, in which interdiffusion occurs mainly along a free surface and GBs.
But vacancy-pairs self-interstitials in some materials can also act as vehicles of diffusion.

The UVM is highly applied to machining nonconductor materials, hard & brittle materials such as various ceramics etc, compare with Electrical discharge machining (EDM), electrolysis machining and laser machining, UVM is independent on the conductive of materials and no thermo physical activity on part, compare with the photo etching, UVM can machine the large depth-to-width ratio on part.
All these properties are making the UVM the unparallel advantage in cutting hard & brittle materials.
These results provide a theoretical basis for machining monocrystal materials such as SiC, Si etc, also obtain reference for efficient processing and a good surface quality of these precious materials.
Physics-Based Predictive Cutting Force Model in Ultrasonic Vibration Assisted Grinding for Titanium Drilling[J], Journal of Manufacturing Science and Engineering, Vol. 131, (2009), p. 041011-9
Zhou, Brittle–ductile transition in the diamond cutting of glasses with the aid of ultrasonic vibration, Journal of Materials Processing Technology Vol. 121, (2002), p. 243–251

Materials and methods Materials and equipments.
A peristaltic pump was used to supply the materials in the investigation.
Journal of Food Science. 69 (2004) 241-248
Journal of LWT -Food Science and Technology. 43 (2010) 1067-1073
Journal of Zhejiang University (Sciences Edition).32 (2005) 62-65