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The article developed a five-lump kinetic model for delayed coking through needle coke. The kinetic parameters were determined using the experimental results of the genetic algorithm method. The results showed the calculated concentration distribution agreed well with the experimental results. The results of five-lump kinetic model that composed of parallel and serial reactions and their activation energy also showed that the thermal sensitivity of coal tar pitch declined and that the orderly orientation strengthened under external magnetic field. This facilitates the formation of wide mesophase pitch structures in thermal conversion.

In this paper, As pollution in the vegetable planting soil of Suzhou city was measured, analysed and evaluated by X-ray fluorescence spectrometry and enrichment factor method. The results show that: As content in the vegetable planting soil of Suzhou city ranged from 5 to 20mg/kg, with an average of 510.51mg/kg; Form spatial distribution, there were a lot of differences between the different vegetable planting areas; The enrichment factor indexes showed that As content in vegetable planting soil was non-polluting or weak pollution level. however, there are certain risks to the environment quality because of As cumulative trend.

Selecting collection of 19 topsoil samples in Sixian City, first with X-RF fluorescence spectrometer, determination of soil heavy metals content of Cu、Zn、Pb、Cd and V, and using the methods of corelational analysis to discuss the possible source of pollution of heavy metals and evaluating the pollution levels by Nemerow pollution index. The results show that: (1) Mn, V, and Cr may come from the local soil and the source of Cu, Pb and Zn may be traffic pollution; (2) Cr, Mn and V have not yet basic clean and Cu, Zn and Pb is light pollution.

After selecting 25 samples from pond sediments in Sixian County, northern Anhui Province, China, this article analyzed the Zn content in pond sediments with X-RF fluorescence spectrometer analysis and carried on the ecological risk evaluation. The results indicate that the concentrations of pond sediments range from 20 to 34 mg/kg with average= 26.7 mg/kg, The lead concentration from high to low is Wuwei, Xinji, Huangwei, Dazhuang, Yangzhuang, central zone. By pollution index evaluation methods and enrichment factors methods, the result of Zn content in pond sediments showed that the Zn content was slight pollution.

An intensive investigation of 55 samples which have been collected from different functional areas was conducted to study the heavy metal distribution in urban soils of Suzhou and to construct the health risk assessment model. From the results of X-Ray fluorescence spectrometer, and comparison with the background of Anhui soils, the average concentrations of Cu、Zn、Pb and Cr were in higher level, indicated that the soils in Suzhou urban has already been polluted by Cu、Zn、Pb and Cr to a certain extent; Concentrations of heavy metal in industrial district, business district and bus station are relatively higher, Cu、Zn、Pb have close connection with transportation and industrial production, Cr mainly comes from the contamination of industrial production, and Ni is under the double influence of household and traffic pollution; Hazard indexes and non-carcinogenic risk for heavy metals in urban soils are below the limits of harmful levels, which represent the lower health risk in Suzhou City.

After selecting 23 samples from street pavement dust in Suzhou city, this article analyzed the Zn content in street dust with X-RF fluorescence spectrometer analysis and carried on the ecological risk evaluation. The results show that the Zn content in Suzhou street dusts is from 121 to 538 (mg / kg), and distribution characterized of different functional areas as follows: the business district > the vicinity of the station>the rest area of culture and education > the residential area> the industrial area; the accumulation index values is between 0.76 and 1.78, which is non-polluting or moderately polluted.

The barrel life is decided by explosive payload, tempreture, firing interval, ammunition type and other factors. Thus the zone charge’s auto-recognition is the first question to realize the automatic prediction technology of the barrel life. The zone charge’s recognition technology was proposed based on BP Network. The theory support could be provided by the technology to realize the zone charge’s auto-recognition.