The essential for microseismic monitoring is fast and accurate calculation of seismic wave source location. The precision of most traditional microseismic monitoring processes of mines, using TDOA location method in t...The essential for microseismic monitoring is fast and accurate calculation of seismic wave source location. The precision of most traditional microseismic monitoring processes of mines, using TDOA location method in two-dimensional space to position the microseismic events, as well as the accuracy of positioning microseismic events, may be reduced by the two-dimensional model and simple method, and ill-conditioned equations produced by TDOA location method will increase the positioning error. This article, based on inversion theory, studies the mathematical model of TDOA location method, polariza- tion analysis location method, and comprehensive difference location method of adding angle factor in the traditional TDOA location method. The feasibility of three methods is verified by numerical simulation and analysis of the positioning error of them. The results show that the comprehensive location method of adding angle difference has strong positioning stability and high positioning accuracy, and it may reduce the impact effectively about ill-conditioned equations to positioning results. Comprehensive location method with the data of actual measure may get better positioning results.展开更多
Taking contents of Italian Renaissance gardens in the course Foreign Landscape Architecture History as an example,this paper introduces case teaching method and analyzes application of three-dimensional graphic analys...Taking contents of Italian Renaissance gardens in the course Foreign Landscape Architecture History as an example,this paper introduces case teaching method and analyzes application of three-dimensional graphic analysis method in case teaching in detail,aiming at typical cases of Italian Renaissance gardens,namely,Villa Medici,Fiesole and Villa d’Este,Tivoli.Three-dimensional graphic analysis can help students form intuitive feeling of terrain and space,further understand the typical gardening techniques of foreign gardens,so as to improve the teaching effect of landscape architecture history course.展开更多
As an international language, English is getting more and more attention. Middle school English is relatively simple, however, university and college English involves the English communication level in the later perio...As an international language, English is getting more and more attention. Middle school English is relatively simple, however, university and college English involves the English communication level in the later period of students, therefore, the requirements for English learning are higher, but the effect of university and college English teaching is not obvious. This paper puts forward some suggestions for several teaching methods in university and college English classroom.展开更多
Listening is the prerequisite and foundation of four language skills—listening, speaking, reading and writing. It is very important in high school English learning. But teachers or students seldom focus listening in ...Listening is the prerequisite and foundation of four language skills—listening, speaking, reading and writing. It is very important in high school English learning. But teachers or students seldom focus listening in English curriculum. This thesis analyzes the problems of English listening process and puts forward effective teaching methods to improve students' listening comprehension ability.展开更多
Human beings are wired for stories.Throughout our existence,stories have been an integral part of our meaning making,and informational transportation.Stories are embedded in our biology.We do not just tell stories and...Human beings are wired for stories.Throughout our existence,stories have been an integral part of our meaning making,and informational transportation.Stories are embedded in our biology.We do not just tell stories and hear stories,we experience stories emotionally and cognitively,and we feel stories physically in the body.Stories have been used in every aspect of human life,and have always been part of language teaching as well.Researches have shown that narrative films and readings help to develop empathy,perspective taking,understanding ourselves and others and increase literacy.TPRS is a fun and effective method in teaching foreign languages in a classroom setting.It takes advantage of the power of story in comprehensible input-oriented method.This paper describes what is TPRS and how it works.展开更多
文摘The essential for microseismic monitoring is fast and accurate calculation of seismic wave source location. The precision of most traditional microseismic monitoring processes of mines, using TDOA location method in two-dimensional space to position the microseismic events, as well as the accuracy of positioning microseismic events, may be reduced by the two-dimensional model and simple method, and ill-conditioned equations produced by TDOA location method will increase the positioning error. This article, based on inversion theory, studies the mathematical model of TDOA location method, polariza- tion analysis location method, and comprehensive difference location method of adding angle factor in the traditional TDOA location method. The feasibility of three methods is verified by numerical simulation and analysis of the positioning error of them. The results show that the comprehensive location method of adding angle difference has strong positioning stability and high positioning accuracy, and it may reduce the impact effectively about ill-conditioned equations to positioning results. Comprehensive location method with the data of actual measure may get better positioning results.
基金Sponsored by Beijing Natural Science Foundation (8202017)。
文摘Taking contents of Italian Renaissance gardens in the course Foreign Landscape Architecture History as an example,this paper introduces case teaching method and analyzes application of three-dimensional graphic analysis method in case teaching in detail,aiming at typical cases of Italian Renaissance gardens,namely,Villa Medici,Fiesole and Villa d’Este,Tivoli.Three-dimensional graphic analysis can help students form intuitive feeling of terrain and space,further understand the typical gardening techniques of foreign gardens,so as to improve the teaching effect of landscape architecture history course.
文摘As an international language, English is getting more and more attention. Middle school English is relatively simple, however, university and college English involves the English communication level in the later period of students, therefore, the requirements for English learning are higher, but the effect of university and college English teaching is not obvious. This paper puts forward some suggestions for several teaching methods in university and college English classroom.
文摘Listening is the prerequisite and foundation of four language skills—listening, speaking, reading and writing. It is very important in high school English learning. But teachers or students seldom focus listening in English curriculum. This thesis analyzes the problems of English listening process and puts forward effective teaching methods to improve students' listening comprehension ability.
文摘Human beings are wired for stories.Throughout our existence,stories have been an integral part of our meaning making,and informational transportation.Stories are embedded in our biology.We do not just tell stories and hear stories,we experience stories emotionally and cognitively,and we feel stories physically in the body.Stories have been used in every aspect of human life,and have always been part of language teaching as well.Researches have shown that narrative films and readings help to develop empathy,perspective taking,understanding ourselves and others and increase literacy.TPRS is a fun and effective method in teaching foreign languages in a classroom setting.It takes advantage of the power of story in comprehensible input-oriented method.This paper describes what is TPRS and how it works.
