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Silicon carbide powders were prepared by the carbothermal reduction method.
These calculated results are based on the thermodynamic data of quartz and graphite.
Normally, the data of amorphous SiO2 and C is lower than standard temperature from 100°C to150°C [11].
`s work [13], Fe2O3 was a good catalyst during synthesizing SiC by carbothermal reduction.
Silicon carbide powders were synthesized by the carbothermal reduction method.

Catalytic Evaluation Of Al2o3-Zro2 Supports Used In The Reduction Of No With CH4 Costa, A.
The XRD data showed the formation of tetragonal zirconia phase, with crystallite size of 6.3 and 6.1 nm for the supports prepared with 0.1 and 0.5 moles of Al3+, respectively.
Pd/Al2O3-ZrO2 catalysts were active NO reduction by CH4.
Al2O3-ZrO2 supported palladium catalysts present significant efficiency in the selective catalytic reduction of NOx by hydrocarbons [4] [5].
The Pd/AlxZr1xO2 catalyst (x = 0.1 and 0.5 moles of Al3+) showed activity in the selective catalytic reduction of NO with CH4.

Al2O3-Ti(C,N)composite ceramics were prepared by in situ aluminothermic reduction and pressureless sintering.
It can be seen from the figure: the aluminothermic reduction nitridation was incomplete at 1200˚C, AlN and Al2O3 were in eutectic, while only TiN was generated.
Fig.1 XRD analysis of Al2O3-Ti(C，N)composite ceramics sintered at a different temperature Under conditions of this experimental, Al-Ti-N-C-O system may have generated nitride with TiN, AlN and carbides with Al4C3,TiC due to gas diffusion，and the main reaction and are as follows (thermodynamic data from reference [7]: (2-1) (2-2) (2-3) (2-4) (2-5) (2-6) The equilibrium temperature of reaction (2-1) and (2-2) are 3915K and 3156K respectively.The two reactions can occur simultaneously,and the test temperature is far lower than the equilibrium temperature, so the of the reaction is much less than 0, the positive reaction is very strong.The reaction (2-1) has priority to reaction (2-2) by the diffraction pattern.
At 1300℃ the porosity of T2 composites are the minimum because the aluminothermic reduction and nitridation was carried out fully at this temperature, at the same time,TiN and TiC were in eutectic and generated Ti (C, N).
References [1] Xiangchong Zhong(in Chinese):Refractory.Vol . 42(2008),p. 1-4 [2] Jingchang Huang (in Chinese):Metal and Carbide.Vol .12(1994), p. 43-49 [3] Fusheng Pan,Aitao Tang,Kui Li,in:The synthesized of the titanium carbonitride and the compounds(in Chinese),edtied by Chongqing University Press ,Chongqing(2005) , in press [4] Koyama T，Uchida，Nishiyama A.et al: J Geram Soc Jpm.Vol . 100(1992), p.520-525 [5] Xikun Li,Zhimmeng Xiu,Xudong Sun,etal(in Chinese):Journal of The Chinese Ceramic Society, Vol.11 (2003), p. 1069-1074 [6] J H Gong， H Z Miao， Z Zhao，etal(in Chinese):J Mater Sei Lett.Vol.20 (2001), p. 2085-2087 [7] Yingjiao Liang,Yinchang Che, in:Inorganic Thermodynamic Data Manual(in Chinese) ,edtied by Northeastern University Press, Shenyang (1994) , in press [8] Refractories Seminar Committees of Japan Technical Association,Wenjie Zhang translation, in:Thermodynamics and its practical application in high temperature ceramics(in Chinese) ,edtied by Wuhan Industry Press,

In Copenhagen meeting, china set a clear goal for carbon dioxide emission reduction 40% -45%, which needs reasonable urban energy system planning.
Then calculates the carbon dioxide emission reduction by using renew Energy [7].
The energy consumption is based on the actual data of Tianjin Binhai New Area in 2008.
From above calculating data, by taking appropriate energy-saving measures and reasonable energy planning, the entire district can save standard coal 154742t, which is about 15.1% of the whole basic energy consumption.
to 1250598t. 2) Make full use of renewable energy on the basis of adopt some energy-saving measures, and the carbon dioxide emission reductions can be achieved for the 744070t. 3) As public and residential building is the focus of energy- saving, energy consumption can be significantly reduced after taking energy saving measures to the public and residential building that also have a greater contribution to CO2 emissions reductions.

Each pair of tracks are installed with a data collector and all data collectors carry out a two-way data exchange with the same measurement controller.
The measurement controller is used to receive and deal with both the weight data from the data collector and the video data from video server.
The equipments required reduce a lot which lead to a greatly reduction of investment costs.
Fig. 1 Traditional data acquisition system Fig. 2 Improved data acquisition system The Improved Data Acquisition System Structure of the Improved System.
● Fast data transmission, the maximum rate is 10Mbps

Oxygen reduction measurements performed by linear sweep voltammetry indicat the good catalytic activity of Pd-Mo by SEA compared to dry impregnation (DI) bimetallic catalysts since the SEA technique produced more well dispersed and intimately designed bimetallic particles after reduction.
The slurries were dried at room temperature for a couple of days, followed by reduction in H2.
The data was analyzed with the BET equation to calculate the surface area. 2.3 Electrochemical characterization Electrochemical measurements were performed using a CHI660A Potentiostat and a conventional three-compartment electrochemical glass cell.
It is predicted that the particles of Pd formed because the PdMo alloy can not be formed at low temperature reduction.
It is found that the ORR mass activity increase first and then decrease with the increase of reduction temperature.

Fast Fourier Transform (FFT) was subsequently used to transform the vibration data to a function of frequency domain.
It was observed that the magnetic fields contributed to reduction of chatter amplitudes.
The vibration data was transformed into a function in the frequency domain by using Fast Fourier Transform (FFT) analyzer, included in the software.
As shown in Fig. 3 (b), the highest percentage reduction was observed in run number 4.
This reduction was due to the damping effect of the magnets on the vibratory motion of the tool.

296 Effect of Rolling Temperature, Reduction and Alloying Additions on the Texture of Warm Rolled Steels M.
Two warm rolling temperatures (640 and 700ºC) were employed together with a reduction of 65%.
A reduction of around 65% and two rolling temperatures (640 and 700ºC) were employed.
The steels were rolled to a reduction of 65% at 640ºC and at 700ºC.
Orientation distribution functions (ODF's) were calculated from the pole figure data, to an expansion of Lmax=22 [14], using Bunge's series expansion method [15].

ZrN(ZrO2)/Si2N2O composite materials were synthesized by in-situ carbothermal reduction-nitridation process, with zircon and carbon black as raw materials.
The carbothermal reduction-nitridation reaction process was also discussed.
This over-stoichiometry of carbon black was necessary to promote the carbothermal reduction-nitridation reaction.
(J/mol), lg(pCO/pQ)=-10408/T+6.30 (14) (J/mol), lg(pCO/pQ)=-11126/T+6.12 (15) (J/mol), lg(pCO/pQ)=-13046/T+6.88 (16) Fig. 4 shows the predomination region diagram for ZrO2-SiO2-C-N2 system plotted by the thermodynamic data as shown in formulas (14)-(16), with T as horizontal axis and lg(pCO/pQ) as vertical axis.
Che: Data handbook of inorganic compound thermodynamics (Northeastern University Press, Shenyang, 1993).

The analysis results are also compared with the experiment data from published references and they show a good agreement with the experiment data.
As shown in Fig. 6 the calculated values from material Model 1 agree well with the experiment data.
The results from the Model 2 are lower than the experiment data until the wear depth ratio becomes 0.8.
And the Model 2 gives conservative pressure values comparing with the Model 1 and the experiment data.
The calculated results are also compared with the experiment data in the Alzheimer et al. [3].