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Using the reduction method of the variable precision rough set,the hidden information in power transformer faults data is reduced , and the information which plays a major role in fault classification can be obtained.
The extended model of RST, Variable Precision Rough (VPRS) can overcome this restriction by introducing a probability value [7].Thevalue represents a bound on the conditional probability of a proportion of objects in a condition class which are classified to the same decision.The power transformer fault data was dealed with reduction, redundant information is removed to acquire decision-making rules.
Rough set theory Standard rough set theory.In fault diagnosis,due to the influence of various factors in the actual system, there are some inconsistence between in the test data and the actual value.
Such as in the oil dissolved gas analysis, test data inevitably contain the influence of interference and noise, so,the test data accompany with imprecision and inconsistency.
Pawlak, Rough Sets: Theoretical Aspects of Reasoning About Data,(Kluwer Academic Publishers, USA, 1991)

When analyzing complex data, it is rather difficult to reach expected effect by using merely WNN.
In initial sample data, some data is important, some is incomplete.
The selection of UCI data set and experimental design information are as follows Tab 1.
According to the above steps, each data set precedes 10 time experiment; the results take its average.
Table 1 The choice of UCI data set and experimental design information Result comparison is given in Tab 2.

a fdhytec@126.com * Corresponding author.b cail.08s@igsnrr.ac.cn Keywords: Aquatic worms; aeration; energy use; growth model; sludge reduction Abstract: In the research, the dissolved oxygen, energy efficiency index, growth of aquatic worms and sludge reduction were determined and analyzed.
Data calculation and analysis Energy efficiency index I (nondimensional) is used to evaluate the relationship between energy utilization and operation condition of the treatment system, which is defined as the ratio between the pollutant removal rate R and energy parameter E: (1) I reflects the contribution of the system energy consumption to the wastewater treatment, that the bigger the I, the higher the energy utilization efficiency is.
A new reactor concept for sludge reduction using aquatic worms.
In-situ Tubifex sewage sludge digestion technology for sludge reduction.
Sludge reduction by predatory activity of aquatic oligochaetes in wastewater treatment plants: science or fiction?

Induction In order to meet our needs of dealing with a great deal of incremental data, the generation and effectively use of the data mining technology seem so important.
CA algorithm Dimension Reduction.
First International Workshop on Knowledge Discovery and Data Mining, 2008.
A Fuzzy Decision Tree Based Approach to Characterize Medical Data [C].
Combined Optimization Decision Tree Algorithm Suitable for Large Scale Data-base [J].

SOx Reduction by Feedwater in an Industrial Boiler Chun-Lang Yeh Department of Aeronautical Engineering, National Formosa University, Huwei, Yunlin 632, Taiwan clyeh@nfu.edu.tw Keywords: Pollution; SOx Reduction; CO Boiler; Feedwater.
This paper discusses the SOx reduction by feedwater in an industrial boiler.
The influence of feedwater flow rate on SOx reduction is inspected.
Conclusion In this study, SOx reduction by feedwater in a CO boiler is investigated numerically.
The author would also like to express appreciation for the valuable data and constructive suggestions from Formosa Petrochemical Corporation in Taiwan.

Weight reduction and safety are mutually competing objectives.
And the safety should not be compromised after weight reduction.
The comparisons between simulation results and test data available in the literature are also presented in this paper.
Based on comparisons with test data, the virtual crash simulation model can capture well the occupant survival space during a crash.
Energy Finite Element Analysis for Computing the High Frequency Vibration of the Aluminum Testbed Cylinder and Correlating the Results to Test Data.

For most of the problems about anti-sliding stability with unknown sliding surfaces, strength reduction finite element method can be adopted [6-8].
Different reduction coefficients of material strength are selected to analyze dynamic anti-sliding stability.
Different reduction factors are chosen to calculate from the initial state.
The mutated moment of displacement is considered as destructional moment during the reduction process of strength, and reciprocal of the reduction factor at this exact moment is the safety coefficient [16].Diagram of plastic zone of the sliding moment can be gotten at the same time of calculating the safety coefficient.
Data of water level in different working conditions is shown in Table 1.

The reduction process has been reported in our previous works [8,9].
To maintain higher reduction rate, the reduction temperature was controlled under higher temperature.
As mentioned preciously, the carbon monoxide possesses lower reduction rate compared with hydrogen, the reduction temperature of SSI reduced by charcoal was much higher.
According to the kinetic experiment datum shown in Fig. 1 and Fig. 2, reaction rate equations of cadmium removal by SSI reduced by charcoal and hydrogen under T1 and T2 temperature could be calculated and illustrated in Table 1.
Chemical reduction of nitrate by nanosized iron: kinetics and pathways.

Considering the geotechnical conditions of the analyzed site as input data, in this paper various dimensions and geometric configuration of the columns are evaluated, with specific purpose to determine an optimal solution that meets the technical performances of the project.
One can observe a reduction and a stabilizing trend of the settlements over time, with the introduction of the columns.
This version led to the reduction of the settlement from 10 cm, to 5.7 cm.
As expected, the 1 m diameter and 1.2 m interspacing columns had the best effect, which resulted in a reduction of the settlement from 10 cm to 2.7 cm.
However, both modifying the interspacing by decreasing it, and increasing the diameter of the columns will have, at one point, a negligible effect on settlement reduction.

After 30min irradiation, Cr(VI) reduction efficiency reached 100%.
The pH value has great effect on the photochemical reduction efficiency of Cr(VI).
So high acidity is in favor of reduction of Cr(VI) by ferrous ions.
The kinetics data of Cr(VI) photoreduction is shown in Table 1.
The cycle further speeds up the reaction of Cr(VI) reduction.