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Knowledge representation is the process which codes knowledge into a kind of data structure.
Rough set theory based on the attribute reduction is a kind of high efficient data mining algorithm, and it uses the Boolean algebra simplified results to obtain the required reduction and rules, reduction of original attributes sets, which should have the same resolution ability [5].
information table according to discretization, then, summarizing , classifying the data and establishing the equivalent relations based on the attribute value.
Data Minig: Concepts and Techniques.
Rough Sets: Theoretical Aspects of Reasoning about Data.

Among the benefits are lowering overall cost in changing the battery and also avoid the disruption of conveying the data during battery replacement process.
Fig. 3(a) shows the plot using Table I and Table II data as starting size for this series of simulation.
Overall percent of reduction in wn is around 80% at 5 µm ZnO from 20 µm.
This plot shows the reduction of the wn with the decrease of the ZnO thickness.
The reduction of the width in both TPM and BEM is not affecting much in term of lowering wn as shown in Fig. 3.

By introducing the reduction coefficient of concrete strength and the equivalent restriction reduction coefficient,the non-uniform confinement force of square steel tube to its core concrete is turned to that of equivalent circular steel tube.
Therefore,on the basis of references[7], this paper tries to study the mechanical properties of SMTCC short columns(CHS inner and SHS outer) by introducing the concrete strength reduction factor, the equivalence restraint reduction factor and using equivalent principle.
Concrete strength reduction factor Recent research shows that the force of constraint to internal concrete provided by square steel tube is inferior to that provided by circular steel tube[9].
Based on the experimental data from references[6],the theoretical results are obtained according to formula(14), when,.
Conclusions (1) Based on the UST,the unified solution of ultimate bearing capacity of SMTCC columns(CHS inner and SHS outer) under axial compressive load is obtained by introducing the concrete strength reduction factor and the equivalence restraint reduction factor,in which the decrease of longitudinal stress because of the hoop tensile tension is considered.

The method was critically dependent on the quality of pH data but proved effective in providing rate constants for the catalysed S oxidation reaction and yield (biomass/substrate) estimates in the range pH > 1.5.
In the range pH < 1.5 the batch cultures progressed and although no reliable pH data were recorded, cell yields decreased from 7.43 × 1012 to 2.05 × 1012 cells mol-1 at pH 1.5 to1.0 respectively.
Protons generated during S oxidation are consumed by protonation of SO4-2 ions or during CO2 reduction for the formation of biomass.
An auto-titrator (Dosimat; Metrohm model No. 776) was used to transfer base solution, with volume recorded over 10 minute intervals using a data logger (Datataker50) and computer interface (DeTerminal).
Covington, Re-evaluation of stoichiometric dissociation constants from electrochemical cell data for propionic and n-butyric acids as (0 to 60) oC in aqueous sodium chloride solutions, Journal of Chemical Engineering Data. 49 (2004) 394-406

Sufficient number of experiments was conducted based on the small central composite design (CCD) concept of RSM to generate tool life data for the selected machining variables.
Meanwhile, a time trend was observed in residual values between model predictions and experimental data, reflecting little deviations in tool life prediction.
A very good performance of the RSM model, in terms of agreement with experimental data, was achieved.
Table 5: Percentage reduction of tool wear in preheated machining at a temperature of 335 0C during end milling using TiAlN coated carbide insert.
The reduction of tool wear was found to fall in the range of 35 to 56%.

The present data have revealed the presence in the deformed substructure of a crystallite volume that has rotated towards the {311}<136> component in the interior of <110>//RD fibre grains as a result of a grain fragmentation process.
In total there were 12 rolling passes with an average reduction per pass of 7%.
They depicted the existence of different substructures within the a-fibre type based on different reductions in IF steel.
More extensive data gathering is required in combination with a more fundamental theoretical analysis on the basis of crystal plasticity model.
The present data do not seem to indicate that this is a major source of strain localization here, although not many GBs between misoriented rotated cube grains could be observed.

Based on the research work about the result of organic fertilizer from algae paste, the internal pollution load reductions of COD, NH4-N and available phosphorus were estimated as 13163.04t, 1018.91t and 146.26t, respectively, in 2012.
According to meteorological data, the perennial prevailing wind direction of Xinyun Lake is south-west wind.
Analysis of the benefits for utilization of organic fertilizer from algae According to the statistical data, the population of Xingyun lake basin is 190,000 people, among which agricultural population is 170,000 people.
As for the reductions of COD, TN and TP through collection and remove algae, the environmental benefit was very significant.
As for the reduction chemical fertilizers fertilization to the cultivated land, the environmental benefit was very significant through collection and remove algae and using as organic fertilizer after anaerobic fermentation.

Dynamically Recrystallized Grain Size: Models and Previous Data Models.
Previous Data.
A compilation of recrystallized grain size data on the rock materials olivine (Mg,Fe)2[SiO4] and calcite CaCO3 also revealed a close correspondence of the data with the GSSGSI domain boundary [1].
Data on Dense Polycrystalline NaCl Recrystallization Mechanisms and Mechanical Behaviour.
Clearly, the data is in better agreement with the Shimizu model.

Fig. 1 System boundary of primary aluminum production Considering therepresentation data, this paper selected the time boundary containing 2003, 2006, 2008 and 2010 years.
According to corresponding annual data, the paper calculated the similarity degree, and analyzed the correlation degree between the main impact factors and GHG emissions.
The data of the year of 2003 are used as a reference sequence, and the data in other year is used as a compared sequence
Life Cycle Assessment of Aluminum: Inventory Data for the Worldwide Primary Aluminum Industry〔EB/ OL〕, London, 2003
Life Cycle Assessment of Aluminum: Inventory Data for the Worldwide Primary Aluminum Industry〔EB/ OL〕, London, 2007

Introduction The theory of rough sets [3], proposed by Poland mathematician Pawlak in 1982 is a mathematical method to deal with insufficient and incomplete data.
It is a set-theory-based technique to handle data, that is, through the known information to approximately describe the uncertainty concept [2, 4].
And now, rough set theory has been successfully used for reduction [5], describing dependency among attributes, and dealing with inconsistent data in knowledge and data analysis [8].
Information Sciences 11, 341-356 (1982) [4] Pawlak Z Rough sets: Theoretical Aspects of Reasoning about Data.
Information Sciences 181, 3878-3897 (2011) [9] Xu WH, Zhang XY, Zhong JM, Zhang WX Attribute reduction in ordered information systems based on evidence theory, Knowledge Information System 25, 169-184 (2010) [10] Yao YQ, Mi JS, Li ZJ Attribute reduction based on generalized fuzzy evidence theory in fuzzy decision system.