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Structure Design and Analysis of Variable Gear Pump Haishun Denga , Wei Chen School of Mechanical Engineering, Anhui University of Science and Technology, Huainan, 232001, China aE-mail: dhs1998@163.com Keywords: Gear pump, Variable, Triplet Abstract.
Journal of materials science, 2004. 39(6): p. 2113-2119
Journal of Dynamic Systems, Measurement, and Control, 2003. 125: p. 396
Journal of fluids engineering, 2007. 129: p. 476
Applied Mechanics and Materials, 2012. 130: p. 610-615.

Experiment Material.
Stress concentration achieves maximum at the edge of the pitting, and even local fracture strength of the materials exceeds critical stress intensity factor[12].
Pipeline & Gas Journal, Vol. 225(1998), p. 49 [9] R.
Materials Research and Appl ication.
Journal of Chinese Society for Corrosion and Protection.

(1) Parameters of materials of Φ18×64 size round link chain The common materials of round link chain on mining is 23MnNiCrMo, material density is 7.86×10-6kg/mm3; its Young's modulus is 2.16×1011Pa, shear modulus is 5.6×105Pa; Poisson's ratio is 0.33; yield limit is 9.2×105Pa
The unit type SOLID164 was selected, as the models of structure and materials of three round link chains are identical.
Journal Of China Coal Society.
Journal Of Wuyi University(Natural Science Edition).
Journal of Vibration and Shock.

Tsai et al. reported a semi-empirical model of surface roughness for various materials based on pertinent process parameters in EDM [3].
Aspinwall: International Journal of Machine Tools & Manufacture, Vol. 43 (2003), pp. 121-128
Wang: International Journal of Machine Tools & Manufacture, Vol. 41 (2001), pp. 1455-1477
Pandey: Journal of Materials Processing Technology, Vol. 149 (2004), pp. 272-277
Pandey: International Journal of Machine Tools & Manufacture, Vol. 39 (1999), pp. 165-186

Methods and Materials Studying the redox properties of various organic compounds can provide information on the mechanisms of their chemical reactions.
Voltammetric waves were recorded on a BioLogic Science Instruments SP-50 unit.
New materials, new technologies, ELECTRONICS: Science, Technology, Business: magazine. 6 (2012) 50-56
Forrest, Nearly 100% internal phosphorescence efficiency in an organic light-emitting device (English), Journal of Applied Physics: journal, Vol 90 10 (2001) 5048
Optoelectronics and Advanced Materials.

Black bamboo, a kind of new green materials, has the potential of being made into furniture and the Huxiang Culture which is rich in human and unique in its own region.Aim:The combination of these two can create new furniture.
Black bamboo raw materials are bamboo, fast growth, it is recognized as environmentally friendly human timber.
This article combines black bamboo materials and Hunan cultural elements together, not only can enrich the furniture style, but also can make furniture with rich cultural connotation and unique geographical features.
[2] H.W.Hu:The Definition, Character and Historical Orientation of Huxiang Culture.Journal of Xiangtan University( Philosophy and Social Sciences) Vol. 29 (2005), p. 84-88
Journal of Chongqing Electric Power College Vol. 11 (2006), p. 46-48

Introduction (Ba,Sr)TiO3, one of the most popular ferroelectric materials, has received much attention as dielectric materials for electronically tunable microwave devices, such as phase shifters, filters and delay lines, due to their electric field dependent permittivity [1-4].
Experimental The films of Ba0.6Sr0.4TiO3 precursor solution were synthesized using barium acetate, strontium acetate semihydtate and titanium tetra-n-butoxide as source materials.
The PbO precursor solutions with different concentrations were prepared using lead acetate as source materials.
Now we explore the possible applications of these materials in tunable microwave applications.
Lu, Journal of Physics D: Applied Physics Vol. 43 (2010), p. 305401

But delamination damage will emerge in piezoelectric materials during the manufacturing processes, for instance, shocks in assembling procedures.
The used material is PZT-5 and the material constant is listed in table 1.
Composite Materials Vol. 15(1981), p.403 [5] Z.
Chang: Journal of Composite Materials Vol. 26 (1992), p.350 [6] H.
Chai: Journal of Composite Materials Vol. 19(1985), p.67 [7] J.

Compounds produced by several methods also appear to have significant influence in the response of materials [5-9].
Materials and Methods The α-β processing route consisted of three separate steps.
Alloy A1 (see Table 2) was produced from compacts made from raw materials via vacuum arc remelting.
Semiatin, Thermomechanical processing of alpha titanium alloys—an overview, Materials Science and Engineering: A, 263, p. 243-256, 1999 [12] Z.
Sha, Modelling beta transus temperature of titanium alloys using artificial neural network, Computational Materials Science, 32, p. 1-12, 2005

Materials and methods The tested material is AAC (produced by Hebel) with lime-cement binder and sand filler.
Journal of Advanced Concrete Technology 2 (2004) 121-129
Plagge, Interlaboratory Comparison of Hygric Properties of Porous Building Materials.
Aligizaki, Pore Structure of Cement-Based Materials, Taylor& Francis, London and New York, 2006
Journal of ASTM International, 4 (2007) No.8.