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Oxygen Reduction Electrocatalysts Based on Two-dimensional Iron Polyphthalocyanine Xu Guofeng Li Zhongfang # Wang Suwen Yu Xianjin School of chemical engineering, Shandong University of Technology, Zibo 255047,P R China Keywords: Direct methanol fuel cell; Electrocatalysts; Oxygen Reduction Reaction; Iron Polyphthalocyanine; Synthesis Abstract.
The DTA data for PPcFe showed exceptional thermal stability.
The polarisation curve of oxygen reduction on the FePPc/C catalyst in O2-saturated H2SO4 was compared to that obtained on PcFe, DPcFe and platinum catalysts.
The TGA data were obtained using STA-409, Netsch, under argon atmosphere with flow rate 30 mL/min, heating rate 10°Cmin-1and sample size 10mg. 2.3 Preparation of PPcFe/C, PcTcFe/C andDPcTcFe/C PPcFe, PcTcFe and DPcTcFe were adsorbed onto carbon black (XC-72R) according to the following procedure: 0.5g precursor was dispersed with 0.5 g of XC-72 in 40mL of DMSO.
The TG data for PPcFe shows exceptional thermal stability, which confirms that PPcFe/C is a stable catalyst.

To better study the vibration reduction of the pavement slab, attenuation rate = (maxim peak - attenuation peak)/(maxim peak) was defined to characterize the attenuation of the pavement slab.
This paper was focused on the vibration reduction effects of the flexible functional layer incorporated with/without the rubber powder.
Tab.1 shows the measured vibration data of the pavement structure.
The vibration of the cement concrete pavement with the flexible functional layer incorporated with rubber was smooth and the vibration reduction effect was apparent.
The pavement structure with rubber powder incorporated flexible functional layer has better vibration reduction performance and greater ability of absorbing impact energy.

Analytical and Finite Element Solution of Tractor Brake Link to Achieve Weight and Cost Reduction G.L.
This reduction in thickness would yield a reduction in weight of link and hence would reduce the cost of link with a saving potential of Rs.14, 40000/= per year considering the fact that 6, 00,000 tractors are sold in India every year.
Based on the above observations cost reduction per year is to be calculated and tabulated.
Fig. 8: Fractured 6 mm thick link Weight reduction is of high importance since reduction in weight of link reduces total weight of the tractor which improves the efficient working of the tractor.
[7] Machine Design data hand book by K Lingaiah

SNCR (Selective Non Catalytic Reduction) system is proposed, with 40% methylamine aqueous solution as reducing agent to reduce NOx in diesel exhaust gas.
The effect of injection position and volume on the reduction efficiency through the test bench is systematically researched.
NOx treatment depends on SCR (Selective Catalytic Reduction), Adsorption Catalytic Reduction, Low Temperature Plasma, etc.
According to the data [2], the melting point of 32.5% urea solution used in SCR is -11°C, and it solidifies without heating device at low temperature in winter.
SAE 2004-01-1289 [3] Yoshihara Y., Nakanishi Y: Journal of Chemical Engineers, Vol.51 (2006), p.11 (in Japanese) [4] W Müller, H Ölschlegel, A Schäfer, et al: Selective Catalytic Reduction-Europe’s NOx Reduction Technology.

In this extremely complex weak system, numerous oxidation-reduction couples’ electronic exchange rate on the electrode is slow; therefore, establishing equilibrium potential is slow.
Results and discussion Computer recorded the ORP (accurate to 0.1mV) and temperature (accurate to 0.1℃) indication during the experiment, with 1s sampling time, making ORP (mV)-t(s) diagram, as shown in Figure 2: Fig.2 The curve between seawater ORP (mV) of salinity 5,20,30,35,40 and time(s) During the measurement process, the temperature was controlled at about 25.0℃, continuous measurement time of seawater of five different salinity was controlled at almost 65000s, or about 16h30min, which won more than 30 million online monitoring data.
The results are shown in Table 1: Table 1 Range of the equilibrium value and the equilibrium time for seawater ORP of different salinity salinity average（mV） range of the equilibrium value（mV） the beginning moment of the equilibrium value the ending moment of the equilibrium value the equilibrium time of the equilibrium value 5 237.1 234.9—239.3 820s/0.23h 45030s/12.51h 44210s/12.28h 20 231.2 229.0—233.4 4580s/1.27h 47700s/13.25h 43120s/11.98h 30 231.3 229.1—233.5 7120s/1.98h 50830s/14.12h 43710s/12.14h 35 236.4 234.2—238.6 14630s/4.06h 59400s/16.50h 44770s/12.44h 40 234.3 232.1—236.5 18000s/5.00h 65520s/18.20h 47520s/13.20h From the measured data listed on the above table, though, the five salinity of the seawater have a large gap, the difference among the ORP values were all less than 6.0mV.
The data above has fully demonstrated the tremendous impact of seawater salinity on equilibrium time of the ORP values, mainly due to the more the charged ions in seawater, the stronger the attraction between ions, the more difficult to form a stable force, the longer required time to achieve ORP stable values.
[2] Determination of oxidation-reduction potential (Electrometric method), SL94-1994(1995).

acupliyong@yahoo.com.cn Keywords: FFT; filter; seismic data.
Its principle is based on the method to study how to process the digital seismic data.
Fig. 6 Original image Fig. 7 Noise Reduction Figure by the filter Conclusion The innovation of this paper is to deeply analyze characteristics of the fast Fournier transformation in detail and clarify the working principle and design process of digital filter used in processing seismic data.
Digital filter is applied to the actual noise reduction, and remove or suppress the interference wave effectively in the process, then highlight the effective wave and effectively suppress seismic data and the precision improved by noise.
Seismic Data Processing Method, University of Petroleum Press. 2004.

Thermodynamic data were used to discuss phenomenologically behavior of the reduction stages in terms of Gibbs-Helmholtz relationship as below.
For identification purposes of crystalline phase composition, diffraction patterns obtained were matched with standard diffraction data (JCPDS) file.
Results and Discussion Thermodynamic Consideration: The thermodynamic considerations data for the reduction of MoO3 in CO atmosphere was tabulated in Table 1 and the Gibbs free energy changes due to reaction were calculated.
Reduction Behavior by TPR.
This results are accomplish with the thermodynamic consideration data in Table 1 that indicated the formation of Mo2C is more favourable compared to formation of metallic molybdenum when the excess of CO are introduced to the reduction system.

Introduction Data Mining is a process to extract implied, unknown, potential and useful information from a great amount of data.
Although the development of Data Mining has only over ten years of history, its development is fairly rapid.
Data mining concepts and techniques [ M ]．San Franciso : Morgan Kaufmann Publishers , 2005
Association rule mining using heavy itemsets [ J ]．Data & Knowledge Engineering , 2007 , 61 ( l ) : 93 一1 13
Evaluation of sampling for data mining of association : ules [ A ] .

So it is a kind of effective means for increasing producing magnesium by silicon-thermo-reduction.
There are numerous applications of ANN in data analysis, pattern recognition and adaptive control.
which need to be optimized as follows[6]: the first is reduction time(t), the second is vacuum degree(P) and the last is average reduction temperature(T).
The experimental samples in Table 1 are utilized as the training and simulating data.
On the interface of predicting the rate of producing magnesium, as shown in Fig.4, the user need to input three processing parameters such as reduction time, vacuum degree and average reduction temperature.

The data was recoreded for each run using the interface displayed in computer.
The data also was recoreded for the rotation speed and the renolyds number was calculated according the equation 2.
The recorded data for the inside torque was then plotted.
Fig. 3 illustrates the degradation resistance obtained from the experiment data and by using the empirical exponential decay function.
Fig. 3: The comparison of the degradation resistance obtained from the experiment data and by using the empirical exponential decay function Fig. 3 shows that the experiment data and the result obtained from the theoretical equation are close, which support the validity of our experiment data.