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Microstructure and Magnetic Properties of Nd2Fe14B/α-Fe Nanocomposite Prepared by HDDR Combined with Mechanical Milling Hu Lianxi 1,a , Wang Erde 1, Guo Bin 1, Shi Gang1 1 School of Mater.
The ball to powder weight ratio was 20:1.
Fig.1 shows the Mössbauer spectra of the starting and as-milled alloy powders.
References [1] R.
Forum, 475-479(2005) : 2185~2188 [11] Shi Gang, Hu Lianxi, Wang Erde, J.

Simulation computes gives that the heat recover plays the important action for increases exergy utilization efficiency of GHP system, especially at combined heating and electricity operational models, and the rules of heat recollection ratio and heat recollection temperature to exergy utilization efficiency of CHCP system were provided. 1.
It is one of the main directions of the distribute type energy development,as in [1-3].
Fig.1: Exergy connection of the system of gas engine-driven heat pump combined cooling heating & power The system of gas engine-driven heat pump is constituted by two parts, the one is the system of steam compressed heat pump that driven by gas engine, it constituted by unsealed compresser, engine, evaporator, condenser and throttle; The other is the system of generate electricity that driven by gas engine.
References [1] Du jianyi, Wang yun, Xu jianzhong, The development and utilizing of distributed energy system and subminiature gas engine[J], engineering hot physics paper , Vol.25 No 5,2004：786-788 [2] V.
Havelsky Energetic efficiency of cogeneration systems for combined heat, cold and power production [J] International Journal of Refrigeration 22 (1999) 479-485

Fig. 1 illustrates a TEG with such a design.
Fig. 1 schematic illustration of a thermoelectric generator.
The Dr Sinter 1020 SPS [1] was used in this study.
References [1] K.A.
Forum Vol. 475-479 (2005), pp. 1555

In order to obtain the PS microspheres film of high-density single-layer arrangement, four different concentration of PS microspheres solution were prepared, the mass fraction of PS microspheres is 0.4%, 0.6%, 0.8% and 1% respectively.
When mass fraction was more than 1.0%, the second-layer film began to form above the single-layer film, the gap will exist in case of mass fraction less than 1%.
References [1] Y.
IEEE Conference Publishing Vol.978(2010),P.479 [7] S.
Colloids and Surfaces A: Physicochemical and Engineering Aspects Vol.219(2003), P.1 [10] Y.

The forms of structural and specifications of the padeyes D are provided in Fig. 1 and Table 1.
References [1] Soh, Ai-Kah; Soh, Chee-Kiong.
Journal of Ship Production, Volume 25, Number 1, February 2009, pp. 1-6(6)
Vol. 54, No. 1, March 2010, p34-40
Composite Structures, 81 (2007) 471–479 [9] Code for Lifting Appliances in a Marine Environment, LLOYD’s Register, August 2009.

Intorduction To separate copper and arsenic is difficult in mineral processing，and it is a big problem to remove arsenic from the procedure in production of the non-ferrous metal, also difficult to make the arsenic innocent and recycle[1].
Removal of Fe3+ from bacterial leaching solution Table1 shows that Fe3+ extraction results of leaching solution at the third stage.Under the conditions of extraction temperature at 25°C, phase ratio at 1:1, aqueous pH at 1, concentration of P204 in kerosene being 30%(φ), and 3-step extraction, The results indicated that Fe3+ is extracted up to 77%~93% at the first step, Cu and As are hardly extracted, and the content of Fe3+ in raffinate is in the range of 0.007~0.16 g/L at the second step, finally it is under 9 mg/L.
Conclusions It can be summarized from the experimental results above that: (1) the results showed that Sulfobacillus thermosulfidooxidans are suitable for bioleaching of the high-arsenic copper sulfide concentrate.
References [1] Wei Li: China Mining Magazine.
China , J. 18(2008) 474~479 [7] Zhongwei Jin，Zhenhua Shi，Zuxiong Zhang: CHINA WOOD INDUSTRY, J. 4(2004) 34 [8] Helsen Lieve, Eric Van den Bulck: Environmental Pollution, J. 134 (2005)301-314

Fig.1 Precise model of Aero-engine Actuator For hydraulic actuator mathematical model, its ODEs usually present stiff problems.
References [1] Aero-engine control[M], Northwestern Polytechnical University press. 2008.
Simulation Modelling Practice and Theory, 2012, 21(1): 65-77
Journal of System Simulation. 2005, 17(2): 479-482
International Journal of Fluid Power, 2002, 3(1): 33-46.

Introduction Ti-6Al-4V alloy has been widely applied in many industrial fields because of its high strength, low density and good corrosion resistance [1].
XRD patterns of thermally oxidized surfaces before and after vacuum diffusion are illustrated in Fig. 1.
References [1] H.
Farrar, The physical metallurgy of titanium alloys, Ocean Engng. 1 (1969) 329-334
Çimenoğlu, The corrosion–wear behaviour of thermally oxidised CP-Ti and Ti–6Al–4V, Wear. 256 (2004) 469-479

Particularly important is the last parameter, since it is closely related to the oscillations of the tension in the yarn [1,2].
Figure 1: Yarn unwinding from a conical package.
The current angular velocity ω is computed using Eq. (1) for cylindrical package or using Eq. (8) for conical package.
References [1] Kong, X.
A, 436 479-498

In July 2011, three different shrub densities were selected as experimental field in the flat site and three quadrats of 20 m×20 m were set up for each shrub density, and the density followed the sequence as: DⅢ （1724 trees /ha）> D II （954 trees /ha ）> D I（479 trees /ha）.
The value assigned to the parameters of soil water and shrub coverage was 4, 3, 2, 1 and the value was 1, 2, 3, 4 assigned to the parameter of ET ordered from high to low.
The results included that: (1) The soil water content was affected by P significantly.
Quadrat Soil water Evapotranspiration Coverage Score Order DⅠ 1 1 1 1.0 3 DⅡ 4 4 3 3.7 1 D Ⅲ 3 2 2 2.3 2 Table 2 Comprehensive valuation and order for three different shrub densities Figures Figure 1.
References [1] Lal, R.