目的 探讨基于快课技术+雨课堂的翻转课堂在护理学导论教学中的应用效果.方法 将106名护生按照班级分为对照组52人,干预组54人.对照组采用传统教学法,干预组采用基于快课技术+雨课堂的翻转课堂教学法.比较两组课程成绩及学生对教学效果的评价.结果 干预组护生课程成绩、对教学效果的评价显著高于对照组(P＜0.05,P＜0.01).结论 在护理学导论课程中使用基于快课技术+雨课堂的翻转课堂能有效提高教学效果.

This article takes a project as an example,introduces the method of deep foundation pit top-down construction,supervision points of underground continuous wall and deep foundation pit,the specific case of problems and treatment in the implementation process.

Along an elevation gradient(3200 m to 3800 m) on Qinghai-Tibetan plateau,BIOLOG GN2 plates were used to analyze the elevation patterns of bacterial community functional diversity.The redundancy analysis(RDA) method was further used to analyze the relationship between bacterial profiles and the environmental variables.The results indicate that soil variables explain 46.6% of the variation in bacterial community functional diversity.Among the soil variables,soil available phosphorus explains the largest part,which suggests that it might be an important limiting factor for soil bacterial community functional diversity in this area.The soil temperature,which changes with the altitute,also has a profound effect on bacterial community functional diversity.

The sand excavation management in the Yangtse River is related to river tendency,flood control safety and navigation safety.So it is a social hot topic.Although Wuxi has made progress in the sand excavation management in the Yangtse River,there are still problems.Wuxi puts forward some countermeasures and suggestions to solve these problems.

随着我国工业化进程的加快,一些重要生产工艺设备的起动转矩也随着增大,传统的起动方式已经不能满足工业化的需要,大型交流同步电机的起动方式在现代工厂自动化控制逐渐被大家重视,运用到大型高炉鼓风机、制氧机、空气压缩机等大型的设备中。针对上述的问题,主要介绍高压软起动在压缩机负载生的设计应用,首先简单的介绍高压软起动,然后分析高压软起动的优点,最后阐述高压软起动技术在压缩机负载设计中的应用。

In the engineering of underground cavern excavation,due to the original structure in rock mass,plus stress redistribute and concentrate after the excavation of cavern,and again,the influence of explosive,thus,the rock loose circle will form inside certain limits of the top cavern.The excavation of a hydropower station underground workshop has two schemes,one is middle drift first and the other one is bilateral drift first.In order to obtain the better method,this thesis utilizes finite element method and refers to the similar engineering,method one has been chosen.

随着企业不断地发展,在生产经营中起重机械的作用越来越突出,而起重机械存在较大的风险,为避免事故的发生,必须及时地制定出相应的安全措施,主要就起重机械安全事故问题和起重机械事故安全防范措施进行分析。