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The tool path generated by this method are also compared with that of the long edge of surface as the MCP, the results of simulation show that the method can yield a reduction in line segments of tool path .
MCPs along the locus of maximum convex curvature lead to a considerable reduction in machining time while those for minimum curvature yield a reduction in CL data file size.

Experimental results show that the abrasive grains size reduction was proportional to the improvement of the surface quality during the lapping, after 45min the abrasive size change tends to be uniform, the participation rate of abrasives grains in lapping process was between 0.2% and 16%.
According to the characteristics of the experimental data, we can judged from Fig.3, after 45min, the lapping process belongs to the stage of uniformly stage, this has been demonstrated from average results of roughness as shown in Fig.4, in the period of the first 45min, roughness Rt decline faster, after 45min Rt roughness is essentially retain the same, on the one hand, can test the processing limits of 280 # abrasive, after 120min, the declining of the roughness was mainly due to the breakage of abrasive grain in the process, tended to be uniform.
This shows the correlation between surface quality and abrasive size, in other words, size reduction resulted from abrasive wear would improve the surface quality.
It indicated that the improvement of sapphire surface quality was proportional to the reduction of abrasive particle size.

Then, the construction of failure age models based on historical data following Weibull distributions will be presented.
Cell Life Data Typically, smelters keep records of cell materials used during construction and some operational data, usually from the pre-heating and early life operations.
Table 1 represents an excerpt of the data set.
Note that the data has been coded to preserve confidentiality.
The model is constructed by fitting life data to the Weibull cumulative distribution function in equation 1 through linear regression.

Data encryption module added to the inverter air conditioners and micro-power wireless/PLC module and gateway (smart home gateway) for data transfer and interaction (air conditioning and control gateway authentication authentication).
Fig .4 Micro Power Bridging Functional Block Diagram Wireless gateway, use a network processing power of the CPU as a core module, through the air conditioning load control and RF transceiver chip for data communication, while ensuring the stability of data transmission at the same time taking into account the security of transmitted data.
When you send or receive data over the Internet, hardware encryption/decryption processing.
Data demonstration project in Beijing, for example, as shown in table 1.
Tab.1 Empirical project data City Data items Unit Baseline group Visualization Regulation Beijing Maximum load KW 39.53 37.46 32.88 Minimum load 4.85 4.83 5.04 Peak and valley difference 34.68 32.63 27.84 Load reduction rate - 6.82% 38.12% Air-conditioned baseline group as the base line, maximum load and minimum load, respectively in the visualization group 95.2%, floating, maximum load and minimum load, respectively in the control group, 83.1% float。

Data Collection.
The data collection process will be divided into two phases.
This data will be used to develop a comprehensive understanding of the building's design and construction.
Data collected will be analyzed using statistical methods.
Data collected from the qualitative method will be analyzed through content analysis.

The histogram data was analyzed to determine the size distribution, and TEM pictures were obtained to investigate particles’ size and shape .
When comparing treated individual groups to control, **P < 0.01 indicates a very significant difference in writhing reduction; when comparing treated individual groups to control, ***P <0.001 indicates a more significant difference in writhing reduction; and when comparing treated individual groups to control, ****P<0.0001 indicates an extremely significant difference in writhing reduction.
A properly produced nanoparticle by suitable encapsulation, particle size reduction, and surface modification allows for the creation of an effective pain management formulation [35].
Different researchers have reported different colour change patterns for biosynthesized silver nanoparticles as a result of both AgNO3 reduction and surface plasmon resonance (SPR) stimulation [37,38].
On the other hand, the particles were noted to be spherical in shape with an average size ranging between 4 nm and 5nm using the TEM pictures and histogram data analysis.

The effect of extrusion process on the quality of AZ31 magnesium extrudate was performed, by data mining from 3DFEM simulation and Rough Set Theory(RST).
So by using of RST, the data mining from the numerical simulation results of AZ31 extrusion processes was performed to quantitative analysis.
Attributes reduction is the main tooling for data analysis[6].
In reality the data are mostly continuous so that these data must be scattered.
The scattered data decision table ),,,( fVDCUS ∪= can be obtained after attributes scattered.

This paper adopts the existing experiments data of the freeze-thaw [1,2].
This paper adopts the existing experimental method and data [4].
In order to obtain the relation between the concrete damage and chloride penetration depth, all data was analyzed by nonlinear regression method.
Fig. 1 Freeze-thawing damage model of concrete pier Data that must be surveyed on the spot are as follows
If this qualification cannot be reached, the engineer can use the data of Tab. 2 to estimate the times.

Influence of Span-thickness Ratio on Arching Action of Reinforced Concrete Frame Beams Chen Ming-hui1, Song Xiao-sheng2, Su You-po2 （1.Tangshan Industrial Vocational Technical College,Hebei Province,Tangshan 063000 2.Hebei Polytechnic Univercity ,Hebei Province,Tangshan 063009） Key word: span-thickness ratio, reinforced concrete frame beams, arching action Abstract: This paper mainly deals with the influence of the variety of span-thickness ratio of beams on arching action of reinforced concrete frame beams through trial experiment research and theory analyzes.By experimental study and theoretical analysis,limit carrying capacity of reinforced concrete frame beams can be enhanced largely owing to arching action.The larger span-thickness ratio of beams is,the lower arching action of reinforced concrete frame beams and limit carrying capacity is,but the reduction is disproportionate. 0 Introduction Reinforced concrete slab on the arching action since the 1950s,many scholars have
Component Number Section size (mm) Net Span (mm) Span-thickness ratio Longitudinal Reinforcement Stirrup Support Mid-span Upper Lower Upper Lower KLK-1 150300 2700 9 3Φ14 3Φ14 3Φ14 3Φ14 φ8@80 KLK-2 150300 4200 15 3Φ14 3Φ14 3Φ14 3Φ14 φ8@100 KLK-3 150300 5700 19 3Φ14 3Φ14 3Φ14 3Φ14 φ8@120 KLK-4 150300 2700 9 3Φ14 2Φ12 3Φ14 2Φ12 φ8@80 KLK-5 150300 4200 15 3Φ14 2Φ12 3Φ14 2Φ12 φ8@100 KLK-6 150300 5700 19 3Φ14 2Φ12 3Φ14 2Φ12 φ8@120 2.3 Observation Design The main observation of this test includes: 1.Observe the relation of the mid-span beams between vertical load and deformation.Because the MTS system can note the dynamic actuator and displacement，it can recordcurve of the whole experiment process; 2.The level of constrainted force on the beam.The level of constrainted force on the beam is bearing the real performance level of constraints,which is one of the key factors that the beam formed arching action,you can set with the test bed at the level of load bearing sensor and record by data
acquisition system; 3.The rotation of constrainted force on the beam.The rotation of constrainted force on the beam is recorded for the test beam rotation constraints bearing situation,you can set with the test bed at the rotation of load bearing sensor and record by data acquisition system; 4.Measure the horizontal stiffness and rotational stiffness.
improvement coefficient of the first group of the beams,the solid line is the improvement coefficient of the second group of the beams.we can see the arching action in the reinforced concrete frame beams,and the existence of arching action can significantly increase the carrying capacity of the frame beams.Through the contrast of the bearing capacity by the factor,we found(Table 3)the first group of the span-thickness ratio raises from 9 to 14, its ratio of limit carrying capacity and calculated carrying capacity decreased by 23.3%; when the span-thickness ratio raises from 14 to 19, reduced 16.1%.the second group of the span-thickness ratio raises from 9 to 14, its ratio of limit carrying capacity and calculated carrying capacity decreased by 24.6%; when the span-thickness ratio raises from 14 to 19, reduced 15.2%.In other words, with the span-thickness ratio raises, the improvement coefficient of carrying capacity decrease gradually,but with the span-thickness ratio raises,the degree of reduction
Fig.4 Enhance coefficient of bearing capacity Table 3 Enhance coefficient of bearing capacity of beams at arching action phase Number Span-thickness Ratio Enhance coefficient of bearing capacity KLK-1 8.85 1.93 KLK-2 14.07 1.60 KLK-3 18.78 1.45 KLK-4 9.00 2.36 KLK-5 14.01 1.92 KLK-6 19.05 1.79 4 Theory results comparison with the experiment results Use three theoretical calculations[4],the theoretical value of the ultimate load compared with the experiment data,the result flows in table 4.Though the analysis and comparison,in order to make the design more safe,we are proposed to calculate the limit carrying capacity by the third method firstly.

The peak shifts toward lower Gate voltage as temperature increases, in agreement with the threshold voltage reduction at higher temperature.
The experimental data are obtained using the setup of Fig.1a, the capacitance is measured between Gate and Source terminals, while a DC bias is applied to Drain terminal, VDS.
The distribution is considered uniform along all the SiC/SiO2 interface [16], since no calibration is performed on experimental data.
This result confirms the behavior found in the experimental data.
Moreover, this result agrees with the threshold voltage reduction with increasing temperature.