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On the basis of the functions of this evaluation system, the main framework of Data Envelopment Analysis (DEA) for the system of evaluating efficiency is also suggested, which is accordant to features of data of accounting in chemical enterprises.
The financial data used in this system is the information about the working of safety resources in chemical enterprises.
The basic unit of Data Envelopment Analysis is Decision-Making Units (DMUs) [4].
The necessary data for method of DEA comes from the financial data chose carefully from accounting information.
With the model (4) of , the availability of safety resources supplied in every chemical enterprises can be evaluated on the basis of accounting input data and output data in one enterprise, and the range of economic risks of safety resources invested in chemical enterprises also be confirmed.

High speed data acquisition unit transmits the data to the memory unit through the USB data transmission.
When the count value is less than Δt, the comparator module comes out low level, A/D conversion and data receiving module does not work; When the count value equal toΔt, the comparator module comes out high level, A/D conversion and data receiving module start to receive, collect and convey the data to register, after the further processing the data is transmitted to the computer through the USB port.
The module mainly consists of the subtraction module, counter module, comparator module, A/D data conversion module and so on.
Clk is the clock of system, adin is the input data of FPGA through A/D converter, when aeb is generated, ADdata module converts the data and transmits the data to the USB interface module, adclk is the operating clock of A/D conversion chip, adcs is the chip select signal.
“A Digital Circuit for Jitter Reduction of GPS-disciplined 1-pps Synchronization Singnals, ” Advanced Method for Uncertainty Estimation in Measurement, 2007, pp.84-88

The data collection means using certain measuring method and device to measure some team spots’ geometric coordinate of each surface of material object, kinds of methods can be used for data collection.
In surface digital technology, according to the difference of measuring method, the data collection method can be divided to two major types of contact-type and non-contact-type.
This process includes the work bellow: 1, data preprocessing, 2, data separation, 3, data smoothing, 4, data optimization.
In Pro/E program, selects the order of [File]/[New] in major menu to create a new material part, and then selects major menu order [Application]/[Scan-tools] to appoint data density mode ( low density mode), and construct coordinate system, the curve can be constructed after data reading.
At last, aiming to car body, make the car body shape design in ALIAS, and do the data reduction through CATIA.

The data entry is shown in Table 1. 2.3 Transesterification of Melia azedarach oil The transesterification of Melia azedarach was done while varying the following important factors which affect the reaction.
At higher temperatures, the reaction proceeds quite rapidly and reaches optimum conversion beyond which addition of acid beyond 5% either has no influence or there is a reduction in FFA conversion due to the occurrence of the reverse reaction.
Figure 5: Acid to oil concentration versus FFA conversion 3.2.4 Influence of reaction time Generally, the reaction rates at the different temperatures increase from 40 mins to 50 mins beyond which there is a reduction in the tie rates of reduction until a plateau phase where there is no more increase in FFA conversion despite increase in reaction time.
At 53℃ reaction temperature which is the optimum reaction temperature, there is not only a reduction in the time rates of reaction beyond 50 mins but there is also a reduction in the FFA conversion.
This is a representation of the reduction of triglycerides.

EIS fitted data provided some insight into the double layer charge alignment at the improved PSF-GO/BDD interface.
Buasri, Preparation and Characterization of Reduced Graphene Oxide Sheets via Water-Based Exfoliation and Reduction Methods, Adv.
J Fernandez-Merino, Vitamin C is an ideal substitute for hydrazine in the reduction of graphene oxide suspensions.
Ajayan, New insights into the structure and reduction of graphite oxide.
Lee, Efficient Reduction of Graphite Oxide by Sodium Borohydride and Its Effect on Electrical Conductance, Adv.

The impregnated support material experiences a reduction in surface area and pore volume while the pore diameter remains unaffected, increasing the catalyst's surface area [14].
This reduction is attributed to the continuous decline in the –OH groups on silanol due to the evaporation process as the calcination temperature increases.
This results in a reduction of Brønsted acid sites, where –HPO4 groups contribute to the acidic sites in the catalyst [33].
The decrease in the % atomic of P after impregnation with nickel metal suggests that the distribution of P elements is uneven, leading to a reduction in the quantity of this element.
Fig. 8 shows the percentage conversion data of liquid products in the ethanol dehydration process to diethyl ether using SiO2, SP 2-400, and SP 2-NiO 3% catalysts at 175, 200, and 225 °C reaction temperatures.

The efficiency and cost reduction performance are improved.
Each generation of statistical data can be used to the basis of adjusting the mutation rate.

When the graphite content is 15%, the increment of the thermal conductivity reaches 50% while the reduction of the compressive strength was almost 90%.
Fig. 4 The thermal conductivity and specific heat capacity of cement concrete Thermal conductivity data of graphite composite cement concrete with different addition curing for 7 days is showed in Fig. 4.

For C and G, the fluorescence intensity of 2-AP was 99.14 and 89.03, respectively, which showed a different degree of reduction.
The results could provide reliable experimental data and theoretical reference for the selection of high-specific probes.

According to the different surface roughness and rotational accuracy, wavelet de-noising algorithm is adopted to make precise error separation. 2.1 Eliminate gross errors “53H algorithm” is famous for that it uses “data window” (it is composed of continues 5 points and 3 points) to deal with the origin data sequence, thus constitute a new data series.
This algorithm eliminates the gross errors by means of comparing the new data series constructed and the origin data series.
b) The way to construct new seriesfrom seriesis to start with the first data of, then orderly take the median of every 3 adjacent dates as the data of.
At last, the results will be returned to LabVIEW and displayed visually.For any one set of data through the error separation by the module, in addition to a slightly reduce of the average, the standard deviation of data series reduced by 7.407%.
Table 1 Comparison of the data before and after multi-level error separation Data before the Multi-level error separation Data after the Multi-level error separation Average 0.3935 0.3933 Reduction ratio 7.407% Moreover, in the actual detection, if directly use fast wavelet transform algorithm instead of the application of 53 H algorithm, the convergent series is different for different measuring objects after wavelet decomposition.