Ji-hong Zhou

The Fuzzy Evaluation of Surface Water Quality in LiuJiazhuang of QingZhang River

Basing on the monitoring data of water quality of LiuJiazhuang section and the analysis results of 4 years, applying fuzzy comprehensive evaluation model, according to¿Environmental quality standard for surface water¿to establish the relevant subjection functions, the quality evaluation of surface water in LiuJiazhuang section is made in this paper. The result shows that the change about the water quality in LiuJiazhuang is not obvious, which belongs to the II Grade and III Grade water standard, and the conditions of water quality are better. At the same time we should take effective monitoring measures of water quality and methods, set up and improve the water quality monitoring networks for the regular routine monitoring and emergency monitoring, adopt a good way in the rational utilization of water resources, protect the health of people, seek the sustainable development of society, economy, and environment, and make use of water resources and water environment forever.

Study progress on the Cleaner Production and Environmental Management System of ISO14000

The Cleaner Production and Environmental Management System of ISO14000 are important measures focusing on prevention both about environmental protection and management, which have important environmental significance and lay a solid foundation for Chinas sustainable development. This article describes the concept of cleaner production and ISO14000, and analyzes the differences and similarities between them.

Study on speedy monitoring instrument of SO 2 in the air

The principle and advantages of the speedy monitoring instrument of SO2 are introduced in this paper, and the reliability, accuracy and precision are determined by the comparison of routine analysis. In the meantime, the method can monitor quickly SO2 in the air at a site without power, water source and experimental platform, and the analysis of a sample needs only 3 seconds.

Determination of concentration of the byproducts in Desulphurization liquid

Hydrogen sulfide is a kind of toxic and harmful gas. If discharging it directly or discharging it after it is burnt into sulfur dioxide, it may cause terrible pollution to atmosphere. Wet Desulphurization is a common method, but there is minor products in the mother liquor of desulphurization. This paper adopts the method of simulating mother liquor of desulphurization, by adding into minor products Na2S2O3 and NaSCN to determine the highest concentration of the mother liquor.

Study on desulfurization(H 2 S) capacity of activated carbon

Hydrogen sulfide is a kind of toxic and harmful gas and will pollute atmosphere environment if exhaust it directly. There are a lot of desulfurization methods so far, and the desulfurization by activated carbon is a kind of better method. The desulfurization capacity of activated carbon fiber(ACF), granular activated carbon(GAC)and power activated carbon(PAC) are studied in this paper. The results indicate that the desulfurization efficiency is ACF≫powder activated carbon ≫granular activated carbon, the higher the packing height of ACF is, the better the desulfurization capacity of ACF. Meanwhile, the desulphurization mechanism is analyzed briefly in this paper.

The discussion in the process of the environmental classroom teaching

For it has so many advantages multimedia supplementary teaching has been widely used nowadays. This paper introduces how to conform the multimedia and the environmental teaching on the basis of the practice of the environmental teaching. It also reveals several problems needing attention about the multimedia teaching process. In addition, it put forward that we should combine the multimedia teaching with the traditional teaching.

Application study on gray numerical model

By mean of monitoring SO2 and NOx, we put forward a new conception about air ground pollution belt, and get two-dimensional finite difference equation of air pollution. Meanwhile dispersion coefficient and wind speed are considered as grey parameters. One grey numerical quality model of air pollution is built according to grey theory and applies to the air pollution diffusing system of Handan city, and simulates SO2 and NOx during heating times and unheating times. The result shows the gray numerical model is suitable for application.

Traffic noise evaluation of 14# building in Hebei university of engineering

With the development of high transportations and urban road construction, the noise pollution generated by traffic is a significant and growing problem. Sound barrier, an effective and comparatively inexpensive measure of reducing noise levels, will be developed to some degree. It will do much benefit to the living quality of the residents along the road if we can take good advantages of its technical property. According to sound properties and mechanical properties, the noise effect of the 14th dormitory is described in this paper. The target value and equivalent continuous A sound level is counted, comparing with the noise standard.

Relationship between passive smoking and female breast cancer on the basis of Meta-analysis

The relationship between passive smoking and female breast cancer with Meta-analysis were explored in this paper. The experiment was conducted in Department of Preventive Medicine of Qingdao University Medical College. Article that was about risk factors of female breast cancer were searched through Chinese journals full-text database and VIP Chinese science and technology journals full-text database from 1989 to 2005. Inclusive standard were that study was located in China, risk factors included passive smoking and results were odds ratio (OR). The identified papers were analyzed using Meta-analysis in order to assess the comprehensive relation between passive smoking and female breast cancer. Ten case-control studies were selected. The cumulative cases and controls were 1879 and 2040. Significant heterogeneity was detected among the 10 studies (Q=20.13, P≪ 0.05). Combined estimate of OR of ever exposure to passive smoking for random effect model was 1.94 (95% confidence interval (CI): 1.80–2.10).

Relationship between abortion and breast cancer on the basis of Meta-analysis

The relationship between abortion and breast cancer among Chinese women were studied in this paper. Articles that ware about risk factors of female breast cancer were searched through Chinese journals full-text database and VIP Chinese science and technology journals full-text database from 1989 to 2005. The identified papers were analyzed using Meta-analysis in order to assess the comprehensive relation between abortion and female breast cancer. Six case-control studies were selected. The cumulative cases and controls were 1440 and 1785. Significant heterogeneity was detected among the 6 studies (Q=17.03, P≪0.05). Combined estimate of OR of ever exposure to induced abortion for random effect model was 2.04 (95% confidence interval (CI): 1.50–2.76) . This metaanalysis suggests a possible weak association between induced abortion and female breast cancer. The women who exposured to induced abortion and miscarrage would have higher risk of being breast cancer than non-exposure to induced abortion and miscarrage.