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Updating set approximations for these dynamic information systems is a necessary step for further knowledge reduction and decision making in DRSA.
The object is selected randomly from data sets when a conditional attribute value changes.
For this purpose, we divide all the data sets to five equal parts and data1-data5 are formed by combining the 1-5 parts.
Experimental results on real data sets show the effectiveness of the proposed approach.
Fig.1 Iris Data Fig.2 User Data Fig.3 Ionosphere Data Fig.4 QSAR Data Fig.5 Image Data Fig.6 Wine Data Acknowledgements This work is supported by the Natural Science Foundation of Hebei Province (No.

The method proposed proves to be a good reduction of the optical camera imaging.
Introduction The space target optical imaging provides space target detection, identification, tracking, positioning and attitude measurement technologies with necessary simulation data, which has a very important value.
The focal plane size determines imaging window size; the camera pixels correspond to screen pixels; the influence of focal length and FOV on imaging is represented by the angular size of the FOV in imaging simulation; the range of near and far clipping plane simulates the imaging scope of the visible light payload; the loading and rendering of star data is determined by the actual optical camera imaging magnitude.
When the space target cannot form a clear image on the focal plane, an equivalent apparent magnitude is used to simulate the target brightness by calculating the space target photometric quantity, which proves to be a good reduction of the actual camera imaging.

The maximum achieved reduction in corrosion rate was 77 % at 40 oC and 0.148 wt % vanadium addition.
The maximum reduction in corrosion rate was approximately 30 % at 0.112 wt % V addition, and the minimum reduction was approximately at 25 oC.
Corrosion rate (mg/mm2.yr) vs. vanadium percent in the specimen in 0.2 M HCl solution at 60oC It is worth noting the scatter of data in the previous figures about ± 30 % .
It is interesting to note that the maximum decrease in corrosion rate occurred around the peritectic point (0.1 wt% V addition on the Al-V phase diagram), this is the wt% addition which is normally used in industrial applications [5].Fig. 5 gives a comparison of the effect of different V wt% addition on the corrosion rate of commercially pure Al grain refined by Ti at the three temperatures 25, 40 and 60 oC from which it can be seen that the maximum reduction in the corrosion rate is approximately 77% at 0.148 wt % addition of V at 40 oC, and the minimum is approximately 7 % at 0.148 wt % addition of V at 60 oC.

Research Progress on the Reduction and Utilization of RO Concentrated Brine from Desalination Plants Weixing Li1, 2,a, Jinghuan Ma1,2,3,b, Ying Liu1,2,c , Qingtong Ren1,2 , Zhansheng Ma1,2 1 School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China 2State Key Laboratory of Hollow Fiber Membrane Material and Membrane Process, Tianjin Polytechnic University, Tianjin 300387，China 3 Tianjin Binhan Environmental Science and Technology Development CO.LTD, Tianjin 300450, China awx33003@163.com, bmajinghuan3326@126.com, cly9423@163.com Keywords: reverse osmosis; concentrated brine; treatment; utilization Abstract.
According to the statistical data issued by International Desalination Association, the total water production had reached up to 7170×104m3/d in the global seawater desalination plants by the end of 2009 and the RO production is up to 60% of the entire production(about 430×104m3/d).
Conclusion Here, techniques for reduction and utilization of RO concentrated brine from desalination plants were reviewed.
The techniques should be researched further to reduce the cost of reduction or utilization of concentrated brine and raise the methods’ feasibility in the industrial-scale plants.

The open-circuit voltage is measured with a data logger, recording one value every 0.4 seconds during the degradation process, while the solar cell is illuminated with light from a halogen lamp with an intensity of 0.05 suns.
The data measured on Cz-Si samples are shown as squares, whereas the data of the MCz-Si samples are shown as circles.
The scatter in the data corresponding to the low-oxygen regime is much more pronounced than that of the high-oxygen regime.
Plotting these values versus the inverse temperature 1/T results in a plot with all data points on a straight line.
Compared to Cz-Si the reduction factor for MCz-Si is smaller.

The reduction in area(RA) and tensile strength(TS) were acquired to draw hot ductility curve and hot strength curve.
Moreover, the drop of hot ductility at 900oC is rooted in the reduction of grain boundary strength owing to the precipitation of sulfides.
It can also provide important data reference to the development of new products, optimization of process parameters and etc [5].
Each data point in the experimental process should be verified twice.
If one data point seemed quite inaccurate, then verified repeatedly.

The test data by Kodur [7] indicated that the addition of PP fibers improved fire resistance of concrete.
This paper contributes to the literature by supplying very unique data to understand the compound concrete materials incorporated a cocktail of steel fiber and PP fiber.
The raw data are presented for future reference and proposed equations may be adopted in the design codes.
Based on the test data in this study, and are determined by the least square method as 8´10-8 and 2.41, respectively.
Limited by the test data, the equation is only applicable in a temperature range of 25℃{TTP}8451 to 800℃{TTP}8451 .

Therefore, all these data can indicate the benefits of LAB on the indigenous beneficial species in meat fermentation process.
It was possible that No detection of E. coli was detected by coliform in food test kit (Harikul Science CO., LTD, Thailand) during 3 weeks of meat fermentation process (data not shown).
It induced lower humidity indicated by low water activity (aw) that reduces common microorganism growth as reduction of aw from 0.95 to 0.78%.
The results of antagonist effects of nham incolated with LAB starter cultures and added L. monocytogenes showed 50% reduction of L. monocytogenes numbers from 106 to 103 cfu/ mL within 7 days and later the bacteria ceased within 27 days (Fig. 6).
Athough, L. monocytogenes without LAB starter were not total inhibited but reduced by 4 times in 5 days, and with further fermentation the pathogen numbers showed slow reduction until reaching at 102 cfu/ mL within 27 days.

This study aimed to supply foundational data needed to provide institutional standards on facility noise in apartments.
Introduction As much attention has already been paid to residential environments, studies on inter-floor noise reduction have been underway for some time.
The present study was used as a foundational stage study in order to propose a higher standard of criteria for facility noise and develop a technology for noise reduction.
Thus, it is necessary to provide measures insuring noise reduction.
Conclusions This study aimed to provide foundational data in order to provide institutional standards on facility noise in apartments with regard to kitchen hood and boiler noise.

It is described since the calibration steps until the application of this system to localize of the non-uniform thickness reduction point under biaxial fluid static expansion, to measure the bulge height time path and the thickness reduction, to analyze the FLD (Forming Limit Diagram) and the superplastic parameter strain rate.
The instrumentation parts related with pressure measurement are an electronic pressure regulator, a pressure transducer, a 12-channel Universal Input Output Module and a data acquisition system.
This curve was measured with acquisition data system, 10 Hz, through a pressure transducer.
Results and discussion For each image, the dome height, the thickness reduction and the FLD, have been analyzed and based on a non-uniform thickness reduction, it’s possible to localize the probably breaking point, as showed at Fig. 6 to 10.
Fig.6 - Non-uniform thickness reduction monitoring at stage 200, 400 and last stage 1040.