The status of English in today’s world has been established definitely.It is not only embodied in the increasing numbers of speakers,but also embodied in the role which English has played in some non-English speaking...The status of English in today’s world has been established definitely.It is not only embodied in the increasing numbers of speakers,but also embodied in the role which English has played in some non-English speaking countries.English is spread as an International language in worldwide and which is no longer belonging to any English speaking countries but belonging to those who use it(McKay,2002).The consequences of English spreading are:on one hand,English as an international lingua franca status has been further consolidated;on the other hand,different regional variants appear in English.These changes lead to the debate between Standard English and varieties of English.All of these in turn generate a profound impact on English language teaching.China as one of non-English speaking countries has also been the impact of globalization in English.The English teaching in China is facing challenges and innovation.展开更多
Recent research results indicate that individual awareness can play an important influence on epidemic spreading in networks. By local stability analysis, a significant conclusion is that the embedded awareness in an ...Recent research results indicate that individual awareness can play an important influence on epidemic spreading in networks. By local stability analysis, a significant conclusion is that the embedded awareness in an epidemic network can increase its epidemic threshold. In this paper, by using limit theory and dynamical system theory, we further give global stability analysis of a susceptible-infected-susceptible （SIS） epidemic model on networks with awareness. Results show that the obtained epidemic threshold is also a global stability condition for its endemic equilibrium, which implies the embedded awareness can enhance the epidemic threshold globally. Some numerical examples are presented to verify the theoretical results.展开更多
In this essay, the complexity of the present situation of world Englishes, comments on the spread of the language, debate over standardized variants in English and the pedagogical implication relating to what types of...In this essay, the complexity of the present situation of world Englishes, comments on the spread of the language, debate over standardized variants in English and the pedagogical implication relating to what types of English should be taught will be discussed. The expansion of English in China is then analyzed concerning issues such as attitudes towards local variety,desirable teaching models, and future adjustment.展开更多
目的研制一种用于战场伤员搜寻、急救的远程无线生理监护、定位系统--单兵状态监视器系统.方法从心电信号中提取心率,用温度晶体测量体温,采用个人状态监视器全球定位系统技术(global position system,GPS)确定单兵的位置,以扩频通讯芯...目的研制一种用于战场伤员搜寻、急救的远程无线生理监护、定位系统--单兵状态监视器系统.方法从心电信号中提取心率,用温度晶体测量体温,采用个人状态监视器全球定位系统技术(global position system,GPS)确定单兵的位置,以扩频通讯芯片组实现生命信息和位置信息的无线扩频传送.结果扩频通讯数据传输可达1000 m明视距离;GPS定位误差小于100m,心率监测在30～250beats/min的范围内误差不超过1 beat,体温监测在25～45℃范围内误差不超过0.1℃.结论实现了1 000 m距离内生命、位置信息融合后的无线扩频传送.展开更多
文摘The status of English in today’s world has been established definitely.It is not only embodied in the increasing numbers of speakers,but also embodied in the role which English has played in some non-English speaking countries.English is spread as an International language in worldwide and which is no longer belonging to any English speaking countries but belonging to those who use it(McKay,2002).The consequences of English spreading are:on one hand,English as an international lingua franca status has been further consolidated;on the other hand,different regional variants appear in English.These changes lead to the debate between Standard English and varieties of English.All of these in turn generate a profound impact on English language teaching.China as one of non-English speaking countries has also been the impact of globalization in English.The English teaching in China is facing challenges and innovation.
基金supported by the National Natural Science Foundation of China(Grant Nos.61004101,11161013,and 61164020)the Natural Science Foundation of Guangxi Province,China(Grant Nos.2011GXNSFB018059 and 2013GXNSFAA019006)+2 种基金the 2012 Open Grant of Guangxi Key Lab of Wireless Wideband Communication and Signal Processing,Chinathe 2012 Open Grant of the State Key Laboratory of Integrated Services Networks of Xidian University,Chinathe Graduate Education Innovation Project of Guilin University of Electronic Technology,China(Grant No.GDYCSZ201472)
文摘Recent research results indicate that individual awareness can play an important influence on epidemic spreading in networks. By local stability analysis, a significant conclusion is that the embedded awareness in an epidemic network can increase its epidemic threshold. In this paper, by using limit theory and dynamical system theory, we further give global stability analysis of a susceptible-infected-susceptible （SIS） epidemic model on networks with awareness. Results show that the obtained epidemic threshold is also a global stability condition for its endemic equilibrium, which implies the embedded awareness can enhance the epidemic threshold globally. Some numerical examples are presented to verify the theoretical results.
文摘In this essay, the complexity of the present situation of world Englishes, comments on the spread of the language, debate over standardized variants in English and the pedagogical implication relating to what types of English should be taught will be discussed. The expansion of English in China is then analyzed concerning issues such as attitudes towards local variety,desirable teaching models, and future adjustment.
