Ordinary Chinese citizens are putting themselves forward as China’s democratic process is being accelerated in its legislative bodies elections XU YAN is a busy man.Starting May 26 this year,he has been campaigning f...Ordinary Chinese citizens are putting themselves forward as China’s democratic process is being accelerated in its legislative bodies elections XU YAN is a busy man.Starting May 26 this year,he has been campaigning for the election of the Xiacheng District People’s Congress, Hangzhou City,capital of Zhejiang Province, which will be held at the end of 2011. Xu has embraced technology to get展开更多
The '2011 Amazing China-The Most Attractive Chinese Cities for Foreigners,' an online poll for foreigners to choose their favorite cities,invites all interested foreigners to cast their votes.
After the celebrations marking the birth of Africa’s newest nation,much work lies ahead for South Sudan by Alphonce Shiundu IN Nairobi,shirtless men,with white body powder sprinkled on their black chests and shoulder...After the celebrations marking the birth of Africa’s newest nation,much work lies ahead for South Sudan by Alphonce Shiundu IN Nairobi,shirtless men,with white body powder sprinkled on their black chests and shoulders,jumped up and down singing and shouting.Not to be left behind,tall dark women in extravagant bright-colored clothes also ululated as they vigorously shook their shoulders in a beautiful,rhythmical dance.展开更多
The scientific foundation of a modern clinical trial is randomization–each patient is randomized to a treatment group,and statistical comparisons are made between treatment groups.Because the study units are individu...The scientific foundation of a modern clinical trial is randomization–each patient is randomized to a treatment group,and statistical comparisons are made between treatment groups.Because the study units are individual patients,this‘one patient,one vote’principle needs to be fol-lowed–bothinstudydesignandindataanalysis.Fromthephysicians’pointofview,eachpatient is equally important,and they need to be treated equally in data analysis.It is critical that statisti-cal analysis should respect design and study design is based on randomization.Hence from both statistical and medical points of view,data analysis needs to follow this‘one patient,one vote’principle.Under ICH E9(R1),five strategies are recommended to establish‘estimand’.This paper discusses how to implement these strategies using the‘one patient,one vote’principle.展开更多
The thermal comfort of passengers in the carriage cannot be ignored.Thus,this research aims to establish a prediction model for the thermal comfort of the internal environment of a subway car and find the optimal inpu...The thermal comfort of passengers in the carriage cannot be ignored.Thus,this research aims to establish a prediction model for the thermal comfort of the internal environment of a subway car and find the optimal input combination in establishing the prediction model of the predicted mean vote(PMV)index.Data-driven modeling utilizes data from experiments and questionnaires conducted in Nanjing Metro.Support vector machine(SVM),decision tree(DT),random forest(RF),and logistic regression(LR)were used to build four models.This research aims to select the most appropriate input variables for the predictive model.All possible combinations of 11 input variables were used to determine the most accurate model,with variable selection for each model comprising 102350 iterations.In the PMV prediction,the RF model was the best when using the correlation coefficients square(R2)as the evaluation indicator(R^(2):0.7680,mean squared error(MSE):0.2868).The variables include clothing temperature(CT),convective heat transfer coefficient between the surface of the human body and the environment(CHTC),black bulb temperature(BBT),and thermal resistance of clothes(TROC).The RF model with MSE as the evaluation index also had the highest accuracy(R^(2):0.7676,MSE:0.2836).The variables include clothing surface area coefficient(CSAC),CT,BBT,and air velocity(AV).The results show that the RF model can efficiently predict the PMV of the subway car environment.展开更多
文摘Ordinary Chinese citizens are putting themselves forward as China’s democratic process is being accelerated in its legislative bodies elections XU YAN is a busy man.Starting May 26 this year,he has been campaigning for the election of the Xiacheng District People’s Congress, Hangzhou City,capital of Zhejiang Province, which will be held at the end of 2011. Xu has embraced technology to get
文摘The '2011 Amazing China-The Most Attractive Chinese Cities for Foreigners,' an online poll for foreigners to choose their favorite cities,invites all interested foreigners to cast their votes.
文摘After the celebrations marking the birth of Africa’s newest nation,much work lies ahead for South Sudan by Alphonce Shiundu IN Nairobi,shirtless men,with white body powder sprinkled on their black chests and shoulders,jumped up and down singing and shouting.Not to be left behind,tall dark women in extravagant bright-colored clothes also ululated as they vigorously shook their shoulders in a beautiful,rhythmical dance.
文摘The scientific foundation of a modern clinical trial is randomization–each patient is randomized to a treatment group,and statistical comparisons are made between treatment groups.Because the study units are individual patients,this‘one patient,one vote’principle needs to be fol-lowed–bothinstudydesignandindataanalysis.Fromthephysicians’pointofview,eachpatient is equally important,and they need to be treated equally in data analysis.It is critical that statisti-cal analysis should respect design and study design is based on randomization.Hence from both statistical and medical points of view,data analysis needs to follow this‘one patient,one vote’principle.Under ICH E9(R1),five strategies are recommended to establish‘estimand’.This paper discusses how to implement these strategies using the‘one patient,one vote’principle.
文摘The thermal comfort of passengers in the carriage cannot be ignored.Thus,this research aims to establish a prediction model for the thermal comfort of the internal environment of a subway car and find the optimal input combination in establishing the prediction model of the predicted mean vote(PMV)index.Data-driven modeling utilizes data from experiments and questionnaires conducted in Nanjing Metro.Support vector machine(SVM),decision tree(DT),random forest(RF),and logistic regression(LR)were used to build four models.This research aims to select the most appropriate input variables for the predictive model.All possible combinations of 11 input variables were used to determine the most accurate model,with variable selection for each model comprising 102350 iterations.In the PMV prediction,the RF model was the best when using the correlation coefficients square(R2)as the evaluation indicator(R^(2):0.7680,mean squared error(MSE):0.2868).The variables include clothing temperature(CT),convective heat transfer coefficient between the surface of the human body and the environment(CHTC),black bulb temperature(BBT),and thermal resistance of clothes(TROC).The RF model with MSE as the evaluation index also had the highest accuracy(R^(2):0.7676,MSE:0.2836).The variables include clothing surface area coefficient(CSAC),CT,BBT,and air velocity(AV).The results show that the RF model can efficiently predict the PMV of the subway car environment.
