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Magnetic materials include isotropic and anisotropic materials.
After being magnetized, the magnetic properties of the anisotropic materials are better and the remanence on the surface of the magnet is more than the isotropic materials.
Thus, the anisotropic materials are more applicable to the parallel magnetizing of the bipolar magnet steel in this design so as to increase the air-gap length of the tracking position sensor, while the isotropic materials are more applicable to the radial charge magnetism of multipolar magnet steel.
The ring or cylindrical magnet steel of anisotropic materials need to be magnetized in the parallel magnetic field, where the direction of the parallel magnetic field should be consistent with the magnetic orientation direction of the magnet steel, as Fig.2 shows.
Journal of Changchun University of Science and Technology,Vol.28(4)(2005),pp.43～46(In Chinese) [3]Ogasawara S,Akagi H.An approach to real-time position estimation at zero and low speed for a PMmotor based on saliency[J].IEEE Transactions on Industry Applications,Vol. 34(1)(1998):163-168(In Chinese) [4]Wu Wei,Liu Xiaohui,Li Zhengrong.

The proposed procedure can easily be extended to other materials and/or different surface treatment processes.
Zhai: Materials Science & Engineering A Vol. 468- 470 (2007), p.137 [2] Z.L.
Muc: Materials Science and Engineering A Vol. 383 (2004), p. 283 [3] D.T.
Wagner: Materials Science & Engineering A Vol. 263 (1999), p. 210 [11] C.L.
Philadelphia: American Society for Testing and Materials. (2001)

The impacts on the water environment mainly include the sewage, mud water and machinery oil generated in the process of bridge construction, the soil erosion in bridge engineering roadbed earthwork excavation site and unprotected slope, the silty materials in the spoil yard and stone processing plant.
China Environmental Science Press(1999), in Chinese
Journal of Natural Resources(2002), in Chinese
Journal of Natural Resources(2010), in Chinese
Journal of Shenyang Normal University(2007) in Chinese.

Research directions: Ground treatment and new building materials Keywords: hydraulic fill sand; silt; stabilization; highway subgrade; strength; Abstract.
Test materials and methods Test Materials: The following materials were used: Cement :(Ordinary Portland cement) P.O42.5, its 3d and 28d compressive strength are 18.5 MPa and 44.3MPa, respectively, Blaine fineness: 350 m2/kg; Slag: bulk density: 2.9 g/cm3, its 7d and 28d compressive strength are 75 MPa and 105MPa, respectively.
Acknowledgement This work was financially supported by the National Natural Science Foundation of China (NSFC) (Grant No. 51008007).
Contrastive Investigation into Activated Effects of Two Alkali-Activators on Geopolymers[J].Journal of South China University of Technology (Natural Science Edition),2007,35(8):108-111
Preliminary study of hardening mechanism of cement-stabilized soil [J].Chinese Journal of Geotechnical Engineering, 1994,16(1):62-68.

Thermal stress cleavage using laser is one of the methods for processing hard and brittle materials.
Recent researches has focused on improving the processing characteristics of hard and brittle materials.
Some other researches of thermal stress cleavage of the hard and brittle materials have been carried out [6-9].
It is also reported that thermal stress cleavage is effective for sapphire which is one of hard and brittle materials [10,11].
Hosokawa, Thermal Stress Cleaving of Brittle Materials by Laser Beam, CIRP Annals, 51, 1 (2002) 149-152 [9] L.

Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Amorphous Manganese Dioxide as a Material for an Electrochemical Pseudocapacitor Sun Wen 1 , In-Hyeong Yeo 2, Jongman Park3 , Sun-il Mho 1* 1 Department of Molecular Science and Technology, Ajou University, Suwon, 442-749, Korea 2 Department of Chemistry, Dongguk University, Seoul, 100-715, Korea 3 Department of Chemistry, Konkuk University, Seoul, 120-749, Korea Keywords: Amorphous MnO2; Electrochemical capacitor; Charge-storage mechanism.
The capacitance resulting from the latter mechanism is often called a pseudo-capacitance and ruthenium oxide (RuO2) is one of the best examples of a pseudocapacitive material.
The amorphous hydrated manganese dioxide (MnO2) is also a good material for a pseudocapacitor with a high capacitance (200 F/g) [7-9].
Unfortunately, most metal oxide electrode materials are not stable in strong acids and can only be used in neutral solutions.
Acknowledgement The authors wish to acknowledge the support from the Korea Science and Engineering Foundation (R04-2001-000-00111-0) and from the Korea Research Fund (BK21) for this study.

Aiming at the phenomenon of that the domestic gear materials and processing technology also have large gap with foreign, many scholars tried to change the structure form to make up for the inadequacy of gear materials and processing technology [3].
By directly setting the design parameters of input size, transmission ratio and gear materials in 3D software, then output standard gear units in software.
Journal of Wuhan University of Technology (Treansportation Science & Engineering), 2014, 38(1): 35-39
Chinese Journal of Mechanical. 2005, 41(6):1-4
Journal of Machine Design, 2014, 31(4): 46-48

In order to be adjusted to the more terrible environment of aero-engine, the new materials with better performance and new material processing technologies are creatively invented.
LSP is very effective in improving metallic materials properties, such as fatigue, corrosion and wear resistance [2,3].
Journal de Physique 1V ,1991 ,1 :487 - 94 [8] P.R.
Materials science and Engineering, A257, 322-7 [11] Peyer P., Berthe L., Scherpareel X. and Pabbro R. (1998b).
Material science, 33, 1421-9 [12] Clauer A.H. (1996).

Material structure was similar as in the materials in which carbide-formation processes were prevented during vacuum carburization.
Warren: International Journal of Refractory Metals & Hard Materials 24 (2004), pp. 61
Takahashi: Materials Science and Engineering A 237-275 (1999), pp. 462
Reed: Metallurgical and materials transactions, Vol. 36A (2005), pp. 977
Tsuchiya: Journal of Alloys and Compounds 434-435 (2007), pp. 497

Since ferrofluid is super paramagnetism material, the regularity of magnetization could be described by Langevin function.
Acknowledgements This work was financially supported by the Ningbo Natural Science Foundation (No.2011A610132), Doctoral Startup Financial Program of Ningbo University of Technology (No.0080011540026).
Journal of Colloid and Interface Science. 2007,Vol.309,135～139 [7] Proceedings of the Eleventh International Conference on Magnetic Fluids.Latvia.July,2007 [8] A.V.Lebedev, S.N.Lysenko.
Magnetic fluids stabilized by polypropylene glycol.Journal of Magnetism and Magnetic Materials.2010,Vol.323,1198～1202 [9] Hairong Cui, Mingli Sun, Xuefeng Wang.
Advanced Material Research.2011,Vol.211-212,411～415