The role of the grammatical metaphor （GM） theory to systemic-functional linguistics （SFL） as well as to metaphor studies has been generally acknowledged. Based on the framework of GM theory in SFL, this thesis, by...The role of the grammatical metaphor （GM） theory to systemic-functional linguistics （SFL） as well as to metaphor studies has been generally acknowledged. Based on the framework of GM theory in SFL, this thesis, by conducting a statistical analysis of the distribution of 13 types of GM in 20 English for science and technology （EST） texts which are chosen at random and aimed at different readers, is intended, on the one hand, to test and verify the applicability and feasibility of Halliday＇s grammatical metaphor theory as well as the correctness of Halliday-Martin＇s claim and on the other, to analyze the reasons for using GM, especially experiential GM substantially in EST texts.展开更多
This paper analyzes performance of optimal channel estimation and multiuser detection(MUD) in a block-fading code-division multiple-access (CDMA) channel on the assumptions of randomspreading and large-system limit,by...This paper analyzes performance of optimal channel estimation and multiuser detection(MUD) in a block-fading code-division multiple-access (CDMA) channel on the assumptions of randomspreading and large-system limit,by using the replica method developed in statistical mechanics.The authors find that the asymptotic spectral efficiency of the linear minimum mean-squared error(LMMSE) MUD which was proposed and analyzed by Evans and Tse in 2000 is indistinguishable fromthat of the optimal MUD for small system loads.Our results imply that performance of MUD scarcelyimproves even if one spends more computational cost than that of the LMMSE MUD,i.e.,at most thecube of the number of users,on the above-described conditions.展开更多
文摘The role of the grammatical metaphor （GM） theory to systemic-functional linguistics （SFL） as well as to metaphor studies has been generally acknowledged. Based on the framework of GM theory in SFL, this thesis, by conducting a statistical analysis of the distribution of 13 types of GM in 20 English for science and technology （EST） texts which are chosen at random and aimed at different readers, is intended, on the one hand, to test and verify the applicability and feasibility of Halliday＇s grammatical metaphor theory as well as the correctness of Halliday-Martin＇s claim and on the other, to analyze the reasons for using GM, especially experiential GM substantially in EST texts.
基金support through Grant-in-Aid for Scientific Research on Priority Areas (No. 18079010)from MEXT, Japan
文摘This paper analyzes performance of optimal channel estimation and multiuser detection(MUD) in a block-fading code-division multiple-access (CDMA) channel on the assumptions of randomspreading and large-system limit,by using the replica method developed in statistical mechanics.The authors find that the asymptotic spectral efficiency of the linear minimum mean-squared error(LMMSE) MUD which was proposed and analyzed by Evans and Tse in 2000 is indistinguishable fromthat of the optimal MUD for small system loads.Our results imply that performance of MUD scarcelyimproves even if one spends more computational cost than that of the LMMSE MUD,i.e.,at most thecube of the number of users,on the above-described conditions.
