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The oxygen reduction reaction (ORR) in alkaline solution is of great importance in many fields.
Electrocatalytic activity The reduction range of the cyclic voltammograms of the investigated hybrid catalysts is shown in Fig. 2.
The MPTpz/MWCNTs shows better electrochemical performance to oxygen reduction than the bulk MPTpz.
The RDE data were analyzed using the Koutecky–Levich (K–L) equation: I-1=Ik-1+Ilim-1
And the CV also shows that FePTpz/MWCNTs are more efficient for O2 reduction in alkaline electrolytes than CoPTpz/MWCNTs attributed to iron derivatives have large ionization potentials and better oxygen binding ability which makes them good catalysts for O2 reduction.

Study on the Improvement of TFIDF Algorithm in Data Mining Hongfei Sun, Wei Hou School of Economics and Management Northeast Dianli University, Jilin, China sunny_bird@126.com Keywords: Improvement of Algorithm; Improved TFIDF Algorithm; Data Mining Abstract.
In order to remedy the defects of traditional methods in the data mining, improving the data mining effect.
The paper proved that the improved TFIDF algorithm is better than other traditional methods more scientific, more advantages and practical value based on four data mining results are compared and evaluated.
However, it's a very difficult thing that search potential cooperator in the multitude of data who have the similar research contents.
With the rapid development of computer technology and the technology of data mining in recent years, it provides the possibility for researchers to search potential cooperator.

Users cannot easily obtain results from only interesting portion of data.
This may prevent the usage of mining from online decision support for multidimensional data.
Introduction Data mining technology has become increasingly important in the field of large databases and data warehouses.
Yu, Data mining: an overview from database perspective, IEEE Transactions on Knowledge and Data Engineering 8 (6) (1996) 866–883
Kamber, Data mining: concepts and techniques, Morgan Kaufmann Publishers,Los Altos, CA, 2001.

The paper established Social Accounting Matrix from Inner Mongolia’s statistic data and Input-Output table of 2007.
The purpose of this division is consistent with the Inner Mongolia Autonomous Region input-output tables, saving time for data collection and collation, and operable.
CGE model parameters calibration relies mainly on the basis of a balanced data set, namely social accounting matrix (SAM).
IMSAM table data mainly from the “Inner Mongolia Autonomous Region in 2007 input-output table”[12], “Inner Mongolia Statistical Yearbook 2008”[13], “China Statistical Yearbook”, “China Financial Yearbook”, “China Tax Yearbook”, the customs import and export data, “China Environment Statistical Yearbook 2008 “and so on.
And the higher rate, the more pollution reduction.

Strength reduction method.
Strength reduction method Zienkiewicz in 1975 put forward the strength reduction method [7], the safety factor of slope stability was defined as the slope just reached the critical failure, the reduction degree of slope soil shear strength parameters.
(1) Strength reduction method assumes that the reduction coefficient of the whole slope soil has the same value, and the reduction coefficient is the slope stability safety coefficient when the slope reached critical.
Because the slope morphology cannot be described as specific data, its sensitivity cannot be calculated through the derivation.
Non-linear shear strength reduction technique in slope stability calculation.

Introduction Although technical papers dealing with the properties of concrete subjected to high temperatures are abundant, there are much difference among the data in the literature, on the residual strengths of concrete after sustained elevated temperature exposure, depending on concrete materials, mixture proportion, age and term of exposure, water evaporation, besides the exposure temperatures.
Some data indicated significant reduction in compressive strength after exposure at temperatures of 50℃ to 80℃, although most data indicated no reduction up to 100℃.
The test data shown in Figure.2 in indicated 15 to 25 % reduction in compressive strength when heated at 50℃, with smaller reductions when heated at higher temperatures up to 110℃, and 40 to 45％ reduction in compressive strengths upon exposure.
The tensile strength after exposure expressed by the percentages of those of unheated concrete at the age of 91-days, shown in Figure.2 (b), indicated 10 to 45 % reductions after exposure at 50℃, 15 to 40% reduction at 80℃, with smaller reduction at 110℃ and 25 to 50% reduction at 300 ℃.
Although the data shown in Figure.3 are limited, it is clear that the minimal compressive strength after exposure at 50℃, were associated with the intermediate weight losses of 2.5 to 3.5 % in this experiment due to evaporation of free water.

Fabrication of hexagonal Ni micro/nano plates by a facile hydrothermal reduction route ZHANG Juna*, YAO Hairuib, LI Huaboc, LI Jingjingd, BAI Xiaokange School of Chemical Engineering & Pharmaceutics, Henan University of Science & Technology, Luoyang 471023, P.R.China aj-zhang@126.com, byaohr@163.com, chuaboli2013@126.com, dlijingjing1107@126.com, eBaixk2010@126.com Keywords: fabrication, hexagonal, Ni plate, hydrothermal reduction Abstract.
Herein, hexagonal Ni micro/nanoplates were synthesized by a facile hydrothermal reduction route in aqueous solution with the assistance of polyvinylpyrrolidone.
The N2H4·H2O has the strong reducing ability, but its reduction reaction with Ni2+ has been confirmed to follow such a route: Ni2+ + 3N2H4 → [Ni(N2H4)3]2+; [Ni(N2H4)3]2+ + N2H4 → Ni↓ + 4NH3↑ + 2N2↑ + H2↑ + 2H+.
By means of the N2H4·H2O reductant and PVP additive, the hydrothermal reduction route has been verified to be effective way for the controlled synthesis of hexagonal Ni plates. (2).
In comparison with the magnetism data of other Ni materials the coercivity of hexagonal plate-like Ni powders has greatly increased.

The X ray powder diffraction data of the products of different reductants at different sintering temperatures and holding time are shown in Fig. 1.
It shows that the reaction of carbothermal reduction of mullite had ended at this time.
When sintering time was 5h, the peak of α-Al2O3was the highest, showing the best reduction effect at this time.
Second, the carbothermal reduction of SiO2 occurred at about 1500°C or at a lower temperature.
Finally, when the reaction of carbothermal reduction of SiO2was complete, the carbothermal reduction of mullite occurred at about 1550°C or at a higher temperature, and the end temperature of carbothermal reduction of mullite is 1600°C.

The unique advantages of GPRS are: packet switching possesses resources only during the period of sending or receiving data, billing method is more scientific and reasonable according to data traffic as the standard; provide reliable 115 Kbit/s transmission rate and meet the requirement of real-time; quickly and timely connect with short access time; Once activated, remain activated online status; send messages without having to reconnect again; When sending data, first decompose packet into several pieces of data, and then transmit store-and-forward way, until the receiver again combine reduction data; Provide a complete communication based on TCP/IP protocol, which would wireless access to the Internet and other global network anytime anywhere, and truly realize mobile office.
The Design of Data Acquisition System A.
System Remote data acquisition system consists of data acquisition terminal and data processing center two parts.
Data acquisition terminal consists of data acquisition module and GPRS wireless module.
Data processing center consists of GSM module and data processing center server.

Training data can be used.
Data processing in the field of data mining is very large.
Scalability of the data is possible as dimensionality reduction is taken into the account.
Dimensionality reduction with PCA for heterogeneous data sites to some extent reduces the communication of transmission of data across all the global sites.
[4] Hairong Qi,Tsei-Wei Wang,J.Douglas Birdwell, “Global Principal Component Analysis for Dimensionality Reduction in distributed data mining”