The development of offshore wind energy is fast as it is clean, safe and of high efficiency. The harsh marine environment raises high demand on the foundation design of offshore wind turbine. Earthquake loading is one...The development of offshore wind energy is fast as it is clean, safe and of high efficiency. The harsh marine environment raises high demand on the foundation design of offshore wind turbine. Earthquake loading is one of the most significant factors which should be considered in the design phase. In this paper, a group of earthquake centrifuge tests were conducted on a physical wind turbine model with tripod foundation. The seismic responses of both wind turbine model and foundation soil were analyzed in terms of the recorded accelerations, pore water pressures, lateral displacements and settlements. The results were also compared with those measured in the previous research on mono-pile foundation. It is demonstrated that the tripod foundation can provide better resistance in the lateral displacement and structural settlement under earthquake loading.展开更多
The aim of this study is to analyze the difficulties of reading and writing experienced by primary school pupils when writing a script for a theatrical performance called ＂digestion＂. Our main research questions are...The aim of this study is to analyze the difficulties of reading and writing experienced by primary school pupils when writing a script for a theatrical performance called ＂digestion＂. Our main research questions are： how does a theatrical performance help to reconsider the scripts and to build a model of the digestive system？ The pupils were encouraged to stage a theatrical performance for the whole school, explaining the digestion of a sandwich, a glass of water, an apple and a piece of chewing gum. The play helped to develop not only knowledge but also language. Having to produce a text for two different audiences, teachers and other learners led the students to debate between using ＂academic＂ vocabulary or more everyday vocabulary. Overall we found that they were more concerned with writing ＂academic＂ scripts, influenced by the texts that they consulted, than with writing a play accessible to all audiences.展开更多
文摘The development of offshore wind energy is fast as it is clean, safe and of high efficiency. The harsh marine environment raises high demand on the foundation design of offshore wind turbine. Earthquake loading is one of the most significant factors which should be considered in the design phase. In this paper, a group of earthquake centrifuge tests were conducted on a physical wind turbine model with tripod foundation. The seismic responses of both wind turbine model and foundation soil were analyzed in terms of the recorded accelerations, pore water pressures, lateral displacements and settlements. The results were also compared with those measured in the previous research on mono-pile foundation. It is demonstrated that the tripod foundation can provide better resistance in the lateral displacement and structural settlement under earthquake loading.
文摘The aim of this study is to analyze the difficulties of reading and writing experienced by primary school pupils when writing a script for a theatrical performance called ＂digestion＂. Our main research questions are： how does a theatrical performance help to reconsider the scripts and to build a model of the digestive system？ The pupils were encouraged to stage a theatrical performance for the whole school, explaining the digestion of a sandwich, a glass of water, an apple and a piece of chewing gum. The play helped to develop not only knowledge but also language. Having to produce a text for two different audiences, teachers and other learners led the students to debate between using ＂academic＂ vocabulary or more everyday vocabulary. Overall we found that they were more concerned with writing ＂academic＂ scripts, influenced by the texts that they consulted, than with writing a play accessible to all audiences.
