"Please fasten your seatbelt,sir." "Would you like tea or coffee?" "Tell me your seat number and I’ll see if I can find a China Daily or Morning Post newspaper for you." On the
In order to meet the requirements of Decree of the State Council of the People's Republic of China (No.599), this paper presents a three-defense line coordination strategy based on the Decree of the State Council ...In order to meet the requirements of Decree of the State Council of the People's Republic of China (No.599), this paper presents a three-defense line coordination strategy based on the Decree of the State Council (No.599). Taking the Guizhou power grid of 220 kV&500 kV as an example, the security and stability problem of the Guizhou power grid is analyzed. The strategy using three-defense line coordination for lowering the level of electricity safety accidents is researched. The analysis results show that the proposed coordination strategy is feasible, which can lower the level of electricity safety accidents under the same fault in same operation mode. Through studying the three-defense line of the Guizhou power grid, this paper presents a basic idea of the three-defense line coordination strategy based on the Decree of the State Council (No.599). The three-defense line coordination strategy provides reference for other provinces power grid.展开更多
In China’s Loess Plateau severe gully erosion(LPGE)region,the shoulder-line is the most intuitive and unique manifestation of the loess landform,which divides a landform into positive and negative terrains(PNTs).The ...In China’s Loess Plateau severe gully erosion(LPGE)region,the shoulder-line is the most intuitive and unique manifestation of the loess landform,which divides a landform into positive and negative terrains(PNTs).The spatial combination model of PNTs is of great significance for revealing the evolution of the loess landform.This study modeled and proposed the Surface Nibble Degree(SND),which is a new index that reflects the comparison of the areas of PNTs.Based on 5 m DEMs and matched high-resolution remote sensing images,the PNTs of 164 complete watersheds in the LPGE were extracted accurately,and the SND index was calculated.The spatial distribution trend of SND was discussed,and the relationship between SND and the factors that affect the evolution mechanism of regional landform was explored further.Results show that:(1)The SND can be calculated formally.It can quantify the development of the loess landform well.(2)The SND of the LPGE has evident spatial differentiation that increases from southwest to northeast.High values appear in Shenmu of Shaanxi,Shilou of Shanxi,and northern Yanhe River,whereas the low values are mainly distributed in the southern loess tableland and the inclined elongated ridge area of Pingliang in Gansu and Guyuan in Ningxia.(3)In the Wuding River and Yanhe River,the SND decreases with the increase in flow length(FL).In the North-Luohe River and Jinghe River,the SND increases with FL.(4)SND is significantly correlated with gully density and sediment modulus and moderately correlated with hypsometric integral.As for the mechanism factors analysis,the relationship between loess thickness and SND is not obvious,but SND increased first and then decreased with the increase of precipitation and vegetation in each geographical division,and we found that the land use type of low coverage grassland has greater erosion potential.展开更多
The Spanish scale to quantify or qualify bodily harm resulting from any unintentional traffic accident prior to 1 January 2016 is established by Royal Legislative Decree(RDL)8/2004.This scale assigns points to the seq...The Spanish scale to quantify or qualify bodily harm resulting from any unintentional traffic accident prior to 1 January 2016 is established by Royal Legislative Decree(RDL)8/2004.This scale assigns points to the sequelae,which are converted into Euros using a table that is updated annually.The objective of this study is to develop a predictive model of sequelae points that will enable the estimation of compensation a short time after the accident.This will facilitate the calculation of the money reserve and rapid access to compensation for the injured party.To conduct this study,we developed a database with information from 999 individuals who had suffered car crash injuries which were evaluated according to the scale contained in RDL 8/2004 for medical experts.Predictive models based on logistic regression models were designed on this database.To choose the best model,we calculated Mallow’s Cp.The use of hurdle models made it possible to predict the points received by an injured party within a relatively short period of time after the accident.Once these points are known,it is a simple matter to calculate the corresponding compensation.The prediction models developed provide an easy way to predict the compensation to be awarded to the injured party.These models use days of hospitalization,sex,age and the results of international scales based on the Abbreviated Injury Scale.These variables can be used soon after the occurrence of the crash.展开更多
In January 2009 the Non-shaft Underground Coal Gasification(UCG) Technology jointly developed by ENN Group and China University of Mining Technology (Beijing) got appraisal in Wulanchabu,Inner Mongolia.
文摘"Please fasten your seatbelt,sir." "Would you like tea or coffee?" "Tell me your seat number and I’ll see if I can find a China Daily or Morning Post newspaper for you." On the
文摘In order to meet the requirements of Decree of the State Council of the People's Republic of China (No.599), this paper presents a three-defense line coordination strategy based on the Decree of the State Council (No.599). Taking the Guizhou power grid of 220 kV&500 kV as an example, the security and stability problem of the Guizhou power grid is analyzed. The strategy using three-defense line coordination for lowering the level of electricity safety accidents is researched. The analysis results show that the proposed coordination strategy is feasible, which can lower the level of electricity safety accidents under the same fault in same operation mode. Through studying the three-defense line of the Guizhou power grid, this paper presents a basic idea of the three-defense line coordination strategy based on the Decree of the State Council (No.599). The three-defense line coordination strategy provides reference for other provinces power grid.
基金National Natural Science Foundation of China,No.41871288,No.41930102The Fundamental Research Funds for the Central Universities,No.GK202003064。
文摘In China’s Loess Plateau severe gully erosion(LPGE)region,the shoulder-line is the most intuitive and unique manifestation of the loess landform,which divides a landform into positive and negative terrains(PNTs).The spatial combination model of PNTs is of great significance for revealing the evolution of the loess landform.This study modeled and proposed the Surface Nibble Degree(SND),which is a new index that reflects the comparison of the areas of PNTs.Based on 5 m DEMs and matched high-resolution remote sensing images,the PNTs of 164 complete watersheds in the LPGE were extracted accurately,and the SND index was calculated.The spatial distribution trend of SND was discussed,and the relationship between SND and the factors that affect the evolution mechanism of regional landform was explored further.Results show that:(1)The SND can be calculated formally.It can quantify the development of the loess landform well.(2)The SND of the LPGE has evident spatial differentiation that increases from southwest to northeast.High values appear in Shenmu of Shaanxi,Shilou of Shanxi,and northern Yanhe River,whereas the low values are mainly distributed in the southern loess tableland and the inclined elongated ridge area of Pingliang in Gansu and Guyuan in Ningxia.(3)In the Wuding River and Yanhe River,the SND decreases with the increase in flow length(FL).In the North-Luohe River and Jinghe River,the SND increases with FL.(4)SND is significantly correlated with gully density and sediment modulus and moderately correlated with hypsometric integral.As for the mechanism factors analysis,the relationship between loess thickness and SND is not obvious,but SND increased first and then decreased with the increase of precipitation and vegetation in each geographical division,and we found that the land use type of low coverage grassland has greater erosion potential.
文摘The Spanish scale to quantify or qualify bodily harm resulting from any unintentional traffic accident prior to 1 January 2016 is established by Royal Legislative Decree(RDL)8/2004.This scale assigns points to the sequelae,which are converted into Euros using a table that is updated annually.The objective of this study is to develop a predictive model of sequelae points that will enable the estimation of compensation a short time after the accident.This will facilitate the calculation of the money reserve and rapid access to compensation for the injured party.To conduct this study,we developed a database with information from 999 individuals who had suffered car crash injuries which were evaluated according to the scale contained in RDL 8/2004 for medical experts.Predictive models based on logistic regression models were designed on this database.To choose the best model,we calculated Mallow’s Cp.The use of hurdle models made it possible to predict the points received by an injured party within a relatively short period of time after the accident.Once these points are known,it is a simple matter to calculate the corresponding compensation.The prediction models developed provide an easy way to predict the compensation to be awarded to the injured party.These models use days of hospitalization,sex,age and the results of international scales based on the Abbreviated Injury Scale.These variables can be used soon after the occurrence of the crash.
文摘In January 2009 the Non-shaft Underground Coal Gasification(UCG) Technology jointly developed by ENN Group and China University of Mining Technology (Beijing) got appraisal in Wulanchabu,Inner Mongolia.
