Objective: To know about the current situation of hypertension in some areas of Hubei Province and analyze the influencing factors. Methods: According to the principle of Stratified sampling, we conducted health exami...Objective: To know about the current situation of hypertension in some areas of Hubei Province and analyze the influencing factors. Methods: According to the principle of Stratified sampling, we conducted health examination and questionnaire survey for 1500 residents over the age of 18 at observation point of chronic noninfectious diseases at 10 sub-districts (towns) of Wuhan City, Jingzhou City, Huanggang City, Shiyan City, which used descriptive statistics and logistics to regressively analyze Current situation of hypertension and its influencing factors of residents. Results: Prevalence of hypertension of rural and urban residents over 18 is 27.44% in Hubei province. There are many differences among prevalence of hypertension of male and female, distribution of BMI of rural and urban residents and prevalence of hypertension and so on, and it has statistical significance (P-value < 0.05 averagely);logistic regressive analysis result shows that different age, gender, education level, dieting habits (high salt and high oil), family per capita monthly income, BMI have statistical significance on the prevalence of hypertension in urban and rural residents of Hubei Province. Conclusions: The prevalence of hypertension in the residents of five cities and prefectures in Hubei Province is on the trend of rising in ladder form and at a much earlier age. The health education, monitoring and intervention of chronic diseases need to be widely carried out, with emphasis on the intervention of the residents’ eating habits of high salt and oil, smoking, drinking and other bad lifestyle.展开更多
目前中国仍有部分工业园区采用供电、供热、供气等各种能源供应系统单独规划和运行的方式,导致大量工业余热被浪费,系统能效低、碳排放高。为了充分利用工业余热并提高系统运行能效,提出一种含高温蒸汽热泵(high temperature heat pump,...目前中国仍有部分工业园区采用供电、供热、供气等各种能源供应系统单独规划和运行的方式,导致大量工业余热被浪费,系统能效低、碳排放高。为了充分利用工业余热并提高系统运行能效,提出一种含高温蒸汽热泵(high temperature heat pump,HTHP)的工业园区综合能源系统(integrated energy system,IES)双层优化模型。首先,构建含HTHP的工业园区综合能源系统架构。其次,针对IES能效较低的问题,利用余热的梯级利用原则与多能协同原则,建立含HTHP的综合能源系统调度策略。再次,建立包含设备容量规划优化与运行优化的双层优化模型,并提出优化模型的求解方法。最后,通过西北地区一个化工园区的实例分析,验证了所提方法的有效性。展开更多
文摘Objective: To know about the current situation of hypertension in some areas of Hubei Province and analyze the influencing factors. Methods: According to the principle of Stratified sampling, we conducted health examination and questionnaire survey for 1500 residents over the age of 18 at observation point of chronic noninfectious diseases at 10 sub-districts (towns) of Wuhan City, Jingzhou City, Huanggang City, Shiyan City, which used descriptive statistics and logistics to regressively analyze Current situation of hypertension and its influencing factors of residents. Results: Prevalence of hypertension of rural and urban residents over 18 is 27.44% in Hubei province. There are many differences among prevalence of hypertension of male and female, distribution of BMI of rural and urban residents and prevalence of hypertension and so on, and it has statistical significance (P-value < 0.05 averagely);logistic regressive analysis result shows that different age, gender, education level, dieting habits (high salt and high oil), family per capita monthly income, BMI have statistical significance on the prevalence of hypertension in urban and rural residents of Hubei Province. Conclusions: The prevalence of hypertension in the residents of five cities and prefectures in Hubei Province is on the trend of rising in ladder form and at a much earlier age. The health education, monitoring and intervention of chronic diseases need to be widely carried out, with emphasis on the intervention of the residents’ eating habits of high salt and oil, smoking, drinking and other bad lifestyle.
文摘目前中国仍有部分工业园区采用供电、供热、供气等各种能源供应系统单独规划和运行的方式,导致大量工业余热被浪费,系统能效低、碳排放高。为了充分利用工业余热并提高系统运行能效,提出一种含高温蒸汽热泵(high temperature heat pump,HTHP)的工业园区综合能源系统(integrated energy system,IES)双层优化模型。首先,构建含HTHP的工业园区综合能源系统架构。其次,针对IES能效较低的问题,利用余热的梯级利用原则与多能协同原则,建立含HTHP的综合能源系统调度策略。再次,建立包含设备容量规划优化与运行优化的双层优化模型,并提出优化模型的求解方法。最后,通过西北地区一个化工园区的实例分析,验证了所提方法的有效性。
