Based on catastrophe theory,we used the catastrophe progression method to predict the risk of coal and gas outbursts in coal mines.According to the major factors affecting coal and gas outbursts,we built a comprehensi...Based on catastrophe theory,we used the catastrophe progression method to predict the risk of coal and gas outbursts in coal mines.According to the major factors affecting coal and gas outbursts,we built a comprehensive evaluation index system and a coal and gas outburst prediction model.In addition,we performed a standard transformation for each index system;based on the degree the various indices affect the risk of an outburst,to make the data dimensionless.Based on the outburst data from eight mines,we determined catastrophe progression values and verified these values.The results show that:1) converting multi-dimensional problems into one-dimensional problems using this catastrophe progression method can simplify the steps of predicting coal and gas outbursts;2) when pre-determined catastrophe progression values are used to predict coal and gas outbursts,the predicting accuracy rate can be as high as 87.5%;3) the various coal mines have different factors inducing outbursts with varying importance of these factors and 4) the catastrophe progression values,calculated based on these factors,can be used effectively to predict the risk of outbursts in coal mines.展开更多
Health literacy refers to the individual obtaining and understanding and dealing with the basic health information and/or services and the ability of use the information and services to make good health decisions.At p...Health literacy refers to the individual obtaining and understanding and dealing with the basic health information and/or services and the ability of use the information and services to make good health decisions.At present, research works related to health literacy in our country are in the initial stage, the information of floating population health literacy is blank, the Chinese Health Education Center （formerly the Chinese Disease Prevention and Control Center Health Education） Ministry of Social welfare studies undertaken special ＂Chinese public health Literacy survey and evaluation System ＂to develop a suitable evaluation index system of health literacy of the public, used for evaluation of our country＇ s public health literacy level. October to December 2007, the Chinese health education center of this set of evaluation index in Jinan Shandong province examines the health literacy status of floating population, analysis the influence factors of health literacy of the floating population, for the national macroeconomic regulation and control of the floating population, the rational allocation of health resources, determine priority health work, and provide evidence for health related policies and regulations of the floating population.展开更多
基金Projects 50574072, 50874089 and 50534049 supported by the National Natural Science Foundation of China08JK366 by the Special Scientific Foundation of Educational Committee of Shaanxi Province
文摘Based on catastrophe theory,we used the catastrophe progression method to predict the risk of coal and gas outbursts in coal mines.According to the major factors affecting coal and gas outbursts,we built a comprehensive evaluation index system and a coal and gas outburst prediction model.In addition,we performed a standard transformation for each index system;based on the degree the various indices affect the risk of an outburst,to make the data dimensionless.Based on the outburst data from eight mines,we determined catastrophe progression values and verified these values.The results show that:1) converting multi-dimensional problems into one-dimensional problems using this catastrophe progression method can simplify the steps of predicting coal and gas outbursts;2) when pre-determined catastrophe progression values are used to predict coal and gas outbursts,the predicting accuracy rate can be as high as 87.5%;3) the various coal mines have different factors inducing outbursts with varying importance of these factors and 4) the catastrophe progression values,calculated based on these factors,can be used effectively to predict the risk of outbursts in coal mines.
文摘Health literacy refers to the individual obtaining and understanding and dealing with the basic health information and/or services and the ability of use the information and services to make good health decisions.At present, research works related to health literacy in our country are in the initial stage, the information of floating population health literacy is blank, the Chinese Health Education Center （formerly the Chinese Disease Prevention and Control Center Health Education） Ministry of Social welfare studies undertaken special ＂Chinese public health Literacy survey and evaluation System ＂to develop a suitable evaluation index system of health literacy of the public, used for evaluation of our country＇ s public health literacy level. October to December 2007, the Chinese health education center of this set of evaluation index in Jinan Shandong province examines the health literacy status of floating population, analysis the influence factors of health literacy of the floating population, for the national macroeconomic regulation and control of the floating population, the rational allocation of health resources, determine priority health work, and provide evidence for health related policies and regulations of the floating population.
