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Under the guidance of "sources-state-receptors" conceptive model, a ranking system for Pb contaminated sites in China with provincial level based on Shannon's entropy methodology was developed in this article. Criteria are identified by the conceptive model which consist of a combination of the attributes (risk sources, state of control mechanism, and vulnerability of receptor) associated...
Food safety has become one of the world's most concerns. Foodborne diseases have become an important factor affecting public health. Biological and chemical substances pollution impact food safety more severely. The doubt of genetically modified (GM) foods safety did not eliminate. The China's food export has the problems, i.e. out of limits of pesticide residue, inconformity with regulations, out...
The purpose of this research is to confirm whether influence tactics can be generalized beyond cultural and social differences. It is likely that the influence tactic of leaders reflects cultural values and traditions. However, research on cross-cultural differences in influence tactic is quite rare. Our study tests the generalizability of the works by Kipnis, Schmidt, and Wilkinson (1980) as well...
This paper aims to identify the servitization strategies in the PC industry in China, and to propose suggestions to the industry and government policy makers. Two servitization strategy options are identified, which are service-centric and product-centric strategies. Its strategic priority, capability requirement and organizational feature are summarized by analyzing and comparing the case study results...
By analysis of the spatial distribution of heavy metals in surface soil in Fuzhou, we found the soil have been contaminated in different levels, especially for contents of Pb, Zn, Cr in all the sample points far exceeded Background value in soil of Fujian Province. Some pro-sulfur and pro-iron elements have similar properties, so their variation of contents show good correlation. The features of the...
The object of this paper was carried out to detect distribution characteristics of two important heavy metal-Cu, Pb in surface sediment in Huangpu River which is the main stream situated in Shanghai city. All the 30 samples were classified into four types corresponding to the sediments from spring, summer, autumn and winter in 2006, respectively. The concentration of Cu and Pb in surface sediment...
This study dealed with the distribution and the origin of trace elements (Co, Cd, Mn, Ni, Zn, Tl and Pb) in two soil profiles from a site near a plant roasting pyrite for sulfuric acid production. Chemical partitioning of the trace elements showed that Tl and Pb in each individual extractable fraction(i.e. weak acid exchangeable, reducible and oxidizable)presented increasing trend upward through the...
The concentrations of As, Cd, Ni, Cr, Zn, Cu, Hg and Pb in the sediment of Xiyi River were analyzed by flame atomic absorption spectrophotometer (AAS). The results showed the average concentration of total As, Cd, Ni, Cr, Zn, Cu, Hg and Pb in the sediment was higher than the national threshold limit. The values of pollution index and integrated pollution index showed that the pollution level was Cd>;...
39 indigenous plant species in 18 families were collected and investigated in four heavy-metal polluted sites. The tolerance and hyptoextraction characteristics of them to Cd, Pb, Cu, Zn and As were examined. In field survey, Bidens bipinnata, Artemisia dubia, Polygonum lapatuifolium, Chenopodium ambrosioides and Solanum nigrum showed to concentrate remarkable heavy metal in shoots. In the further...
This study was aimed to assess the levels of selected heavy metals and herbicides in soils under different land usage and plant products from an agricultural area of Tieling district, Liaoning Province, China. Cd, Pb, atrazine, acetochlor and butachlor were analyzed from maize, paddy and vegetable field. Cd concentrations in 40% of vegetable soils and 6.67% of rice soils were higher than "Environmental...
The purpose of this study is to present an in-depth analysis of the current state of the art of virtual teams (VTs) research in the main land of China by systematically reviewing papers published from 2000-2009. A total of 148 papers are identified and classified by their research topics, research methods, and theoretical foundations. Based on examination and analysis of our data, some critical issues...
The contents and characteristics of ten heavy metals in surface sediments from Yangzonghai Lake in Yunnan, China were analyzed. Ecological risk index presented by Håkanson to assess the potential ecological risk of Yangzonghai Lake was utilized. The results showed that the average concentrations of titanium(Ti), manganese(Mn), zinc(Zn), vanadium(V), chromium(Cr), copper(Cu), nickel(Ni), cobalt(Co),...
As the main portion of urban catchment, road is also a major non-point pollution source of receiving water body. The road runoff pollution has attracted wide attention. The paper makes a study on six rainfall road runoff from 3 different types of roads, analyses the status of road runoff pollution, the surface runoff pollution load and correlation between road runoff pollutants. The result shows that...
Government regulations for handling electronic waste materials are becoming more stringent. The European Union (EU) and China implemented regulations on the restriction of use of hazardous substances (RoHS) for electrical and electronic equipment on 1 July 2006 and 1 March 2007 respectively. One of the many intentions of these regulations is to ban the use of lead (Pb), which is commonly used for...
Employing the triangular fuzzy technology, the article establishes a health risk assessment model for small scale water supply source. By using this model not only the value of probable risk indexes of specific substance influencing people's health but also their corresponding membership degrees (or relative confidence levels) can be obtained. The model is applied to assess the environmental health...
Based on the investigating the inter-tidal water environment in Qinhuangdao section, the distribution characteristics of ammonia nitrogen, chemical oxygen demand, Zn, Cd and other metal elements in the water body and the pollution characteristics of Cu, Pb, Zn and Cd in surface sediment were studied. The results showed that Cd, chemical oxygen demand and ammonia nitrogen are the main pollutants in...
As the further study of agency theory, managerial entrenchment provides a new perspective to explain corporate financial decisions. Capital structure of listed companies in China has deviated from the goal of shareholders' wealth maximum. Based on this objective phenomenon, this thesis makes the theory analysis of the impact of managerial entrenchment on capital structure. Then using the financial...
Father-daughter succession remains rare in family business as evidenced by limited number of female leaders in business. Existing research on this topic is exclusively based on western countries. With the rise of family firms in China in the late 1970s, many founders found themselves approaching retirement age and need to consider succession issue. The strong desire of keeping business within a family...
The road tunnel which has advantages of improving the alignment criterion, educing travel distance, protecting the natural environment is increased used in China. At present, the related domestic and foreign researches are mainly based on the design scale, lining type, construction methods and difficulty, use and so on. There is little about the length definition of road tunnel based on the drivers'...
Secondary school English teaching plays a key role in English education in China, while its current status, especially in the countryside, is not as good as we expected and thus innovation in this field becomes indispensible. This paper analyses a questionnaire research statistics with SPSS 16.0 and tracks down the barriers to innovation in secondary school English teaching in the countryside of China...
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