The present paper reviews the theoretical framework and analytic methods of Critical Discourse Analysis （CDA） and then introduces the latest development of CDA from the perspectives of linguistic anthropology, cogni...The present paper reviews the theoretical framework and analytic methods of Critical Discourse Analysis （CDA） and then introduces the latest development of CDA from the perspectives of linguistic anthropology, cognitive linguistics and corpus linguistics. The prospect of CDA is accordingly advanced.展开更多
VHDL and its supporting environment are active domain in the field of logic design.In the paper the design principle and some key techniques to solve the problems on the implementation of the VHDL parser are introduce...VHDL and its supporting environment are active domain in the field of logic design.In the paper the design principle and some key techniques to solve the problems on the implementation of the VHDL parser are introduced. According to the methods discussed in the paper, the VHDL parser based on VHDL IEEE 1076 standard version is implemented and a series of strict tests are done. This VHDL parser is front-end tool of the VHDL high level synthesis and mixed level simulation system developed by the Research Center of ASIC of BIT.展开更多
Objectives:This study aimed to systematically evaluate the effects of constraint-induced aphasia therapy(OAT)for aphasic patients reported by randomized controlled trials.Methods:Relevant randomized controlled trials ...Objectives:This study aimed to systematically evaluate the effects of constraint-induced aphasia therapy(OAT)for aphasic patients reported by randomized controlled trials.Methods:Relevant randomized controlled trials were retrieved from 11 electronic databases.A methodological quality assessment was conducted in accordance with the Cochrane Handbook,and metaanalyses were performed by using RevMan 5.2.A descriptive analysis was conducted when the included trials were not suitable for a meta-analysis.Results:A total of 12 trials were included.A statistically significant group difference was shown from the meta-analysis in the results measured by the Western Aphasia Battery(random-effects model,MD=1.23,95%CI=0.31 to 2.14,P<0.01).However,there were no statistically significant differences shown in the results of the Boston Naming Test(fixed-effects model,MD=-1.79,95%CI=-11.19 to Z62,P>0.05)and Aachen Aphasia Test(fixed-effects model,MD=-1.11,95%CI=-4.49 to 2.27,P>0.05).The descriptive analysis showed positive results in language performances of naming,repetition,and comprehension.Conclusion:This systematic review indicated that CIAT was efficient for improving language performance with regard to naming,comprehension,repetition,written language,and oral language based on the current evidence.And this review provides some meaningful guides for clinical practice:expand the therapy duration to 2 or 3 h per day,focus on naming,and choose the best assessment tool.It also indicates a need for more rigorous,large-scale,and high-quality trials in the future.展开更多
This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing mod...This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing model. Firstly,the scheme of verb subdivision is described. Secondly,a maximum entropy model is presented to distinguish verb subclasses. Finally,a statistical parser is developed to evaluate the verb subdivision. Experimental results indicate that the use of verb subclasses has a good influence on parsing performance.展开更多
In modem society, advertising plays a very important role in people＇s daily life. We can not imagine the world without advertisements. Advertisers try every means to design persuasive advertisements for their product...In modem society, advertising plays a very important role in people＇s daily life. We can not imagine the world without advertisements. Advertisers try every means to design persuasive advertisements for their products by attractive patterns, photos and colors, as well as commonly shared resources of language. The use of presupposition in advertising language, which is an important topic in pragmaties, can serve the function fairly well. This paper first presents a general review of previous studies on presupposition phenomena in advertising language, then investigates the use of presuppositions in advertising language by both qualitative and quantitative analyses. By qualitative analysis, the author tries to explore the functions of each type of presuppositions in advertising texts; by quantitative analysis, 100 sentences selected from various advertisements for different products are examined.展开更多
The problem of speech enhancement using threshold de-noising in wavelet domain was considered.The appropriate decomposition level is another key factor pertinent to de-noising performance.This paper proposed a new wav...The problem of speech enhancement using threshold de-noising in wavelet domain was considered.The appropriate decomposition level is another key factor pertinent to de-noising performance.This paper proposed a new wavelet-based de-noising scheme that can improve the enhancement performance significantly in the presence of additive white Gaussian noise.The proposed algorithm can adaptively select the optimal decomposition level of wavelet transformation according to the characteristics of noisy speech.The experimental results demonstrate that this proposed algorithm outperforms the classical wavelet-based de-noising method and effectively improves the practicability of this kind of techniques.展开更多
The advent of the Intemet has witnessed a revolution in the business world. One typical example is the emergence of the B2B website. The present paper looks at the B2B website, a conventionalized digital text, in term...The advent of the Intemet has witnessed a revolution in the business world. One typical example is the emergence of the B2B website. The present paper looks at the B2B website, a conventionalized digital text, in terms of its communicative purposes, move features as well as linguistic specialties, with the aim of presenting the generic structure of the B2B website and its principal linguistic features contributing to the realization of its communicative purposes. It is demonstrated that the B2B website is one instance of the promotional genres and it has a lot in common with advertisement English and ＂netsneak＂ in the aspect of lexico-grammatical features.展开更多
Critical Discourse Analysis （CDA） is a new method in linguistic analysis. Usually approached from the angles of linguistics, sociology and psychology, CDA aims to uncover through analyzing linguistic forms, the rela...Critical Discourse Analysis （CDA） is a new method in linguistic analysis. Usually approached from the angles of linguistics, sociology and psychology, CDA aims to uncover through analyzing linguistic forms, the relations between language and ideology. By applying the specific methods of transitivity, transformation, modality and classification in CDA to a report on Barack Obama in The New York Times--a mainstream media in the United States, this paper aims to reveal the ideology hidden in the report, so as to raise the readers＇ awareness of perceiving unconscious ideologies in news and help them to have a deeper understanding of news and the language in news.展开更多
The purpose of the paper is to outline the parameters of a LCC （linguistically centered concept） of developing ME （maritime English） teaching materials for non-native learners who are beginning their maritime acad...The purpose of the paper is to outline the parameters of a LCC （linguistically centered concept） of developing ME （maritime English） teaching materials for non-native learners who are beginning their maritime academic career. The paper introduces initial notions on applying linguistic criteria as the basic ones in the process of creating ME textbooks. Through the historical development and under the influence of extra linguistic factors （globalization of the shipping industry, in particular）, ME has accumulated and stored various resources being in current use： vocabulary, grammar and phonology, operational and semiotic systems, specific means of communication, functional models, patterns of narration and description, etc.. The proper linguistic analysis makes a secure foundation for methodology which can guarantee a better quality of ME course books for the 1st and 2nd year maritime students all over the world.展开更多
The flatwise tension(FWT) and single leg bending(SLB) tests were used to investigate the fracture behavior of honeycomb sandwich specimens.In the FWT test,only the interlaminar delamination was observed.The test resul...The flatwise tension(FWT) and single leg bending(SLB) tests were used to investigate the fracture behavior of honeycomb sandwich specimens.In the FWT test,only the interlaminar delamination was observed.The test results show that the interfacial peel strength is higher than the interlaminar peel strength.In terms of SLB experiment,a new fracture mode was found,namely IKP(initiation of interlaminar delamination,kinking into facesheet and propagation of interlaminar delamination).The virtual crack closure technique was applied to separate the values of Mode I and Mode II components of the strain energy release rate in SLB experiment.The finite element analysis result shows that the Mode I strain energy release rate is higher than the Mode II strain energy release rate.To simulate the failure of SLB test of honeycomb sandwich specimens,a new computational model based on the Tsai-Hill failure criterion and the cohesive zone model is proposed.In comparison with experimental results,it can be concluded that the computational model can validly simulate the IKP of a honeycomb sandwich structures with reasonable accuracy.展开更多
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
文摘The present paper reviews the theoretical framework and analytic methods of Critical Discourse Analysis （CDA） and then introduces the latest development of CDA from the perspectives of linguistic anthropology, cognitive linguistics and corpus linguistics. The prospect of CDA is accordingly advanced.
文摘VHDL and its supporting environment are active domain in the field of logic design.In the paper the design principle and some key techniques to solve the problems on the implementation of the VHDL parser are introduced. According to the methods discussed in the paper, the VHDL parser based on VHDL IEEE 1076 standard version is implemented and a series of strict tests are done. This VHDL parser is front-end tool of the VHDL high level synthesis and mixed level simulation system developed by the Research Center of ASIC of BIT.
基金This study received no specific grant from any funding agency in the public,commercial,or not-for-profit sectors
文摘Objectives:This study aimed to systematically evaluate the effects of constraint-induced aphasia therapy(OAT)for aphasic patients reported by randomized controlled trials.Methods:Relevant randomized controlled trials were retrieved from 11 electronic databases.A methodological quality assessment was conducted in accordance with the Cochrane Handbook,and metaanalyses were performed by using RevMan 5.2.A descriptive analysis was conducted when the included trials were not suitable for a meta-analysis.Results:A total of 12 trials were included.A statistically significant group difference was shown from the meta-analysis in the results measured by the Western Aphasia Battery(random-effects model,MD=1.23,95%CI=0.31 to 2.14,P<0.01).However,there were no statistically significant differences shown in the results of the Boston Naming Test(fixed-effects model,MD=-1.79,95%CI=-11.19 to Z62,P>0.05)and Aachen Aphasia Test(fixed-effects model,MD=-1.11,95%CI=-4.49 to 2.27,P>0.05).The descriptive analysis showed positive results in language performances of naming,repetition,and comprehension.Conclusion:This systematic review indicated that CIAT was efficient for improving language performance with regard to naming,comprehension,repetition,written language,and oral language based on the current evidence.And this review provides some meaningful guides for clinical practice:expand the therapy duration to 2 or 3 h per day,focus on naming,and choose the best assessment tool.It also indicates a need for more rigorous,large-scale,and high-quality trials in the future.
基金the National Natural Science Foundation of China (No.60435020, 60575042 and 60503072).
文摘This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing model. Firstly,the scheme of verb subdivision is described. Secondly,a maximum entropy model is presented to distinguish verb subclasses. Finally,a statistical parser is developed to evaluate the verb subdivision. Experimental results indicate that the use of verb subclasses has a good influence on parsing performance.
文摘In modem society, advertising plays a very important role in people＇s daily life. We can not imagine the world without advertisements. Advertisers try every means to design persuasive advertisements for their products by attractive patterns, photos and colors, as well as commonly shared resources of language. The use of presupposition in advertising language, which is an important topic in pragmaties, can serve the function fairly well. This paper first presents a general review of previous studies on presupposition phenomena in advertising language, then investigates the use of presuppositions in advertising language by both qualitative and quantitative analyses. By qualitative analysis, the author tries to explore the functions of each type of presuppositions in advertising texts; by quantitative analysis, 100 sentences selected from various advertisements for different products are examined.
文摘The problem of speech enhancement using threshold de-noising in wavelet domain was considered.The appropriate decomposition level is another key factor pertinent to de-noising performance.This paper proposed a new wavelet-based de-noising scheme that can improve the enhancement performance significantly in the presence of additive white Gaussian noise.The proposed algorithm can adaptively select the optimal decomposition level of wavelet transformation according to the characteristics of noisy speech.The experimental results demonstrate that this proposed algorithm outperforms the classical wavelet-based de-noising method and effectively improves the practicability of this kind of techniques.
文摘The advent of the Intemet has witnessed a revolution in the business world. One typical example is the emergence of the B2B website. The present paper looks at the B2B website, a conventionalized digital text, in terms of its communicative purposes, move features as well as linguistic specialties, with the aim of presenting the generic structure of the B2B website and its principal linguistic features contributing to the realization of its communicative purposes. It is demonstrated that the B2B website is one instance of the promotional genres and it has a lot in common with advertisement English and ＂netsneak＂ in the aspect of lexico-grammatical features.
文摘Critical Discourse Analysis （CDA） is a new method in linguistic analysis. Usually approached from the angles of linguistics, sociology and psychology, CDA aims to uncover through analyzing linguistic forms, the relations between language and ideology. By applying the specific methods of transitivity, transformation, modality and classification in CDA to a report on Barack Obama in The New York Times--a mainstream media in the United States, this paper aims to reveal the ideology hidden in the report, so as to raise the readers＇ awareness of perceiving unconscious ideologies in news and help them to have a deeper understanding of news and the language in news.
文摘The purpose of the paper is to outline the parameters of a LCC （linguistically centered concept） of developing ME （maritime English） teaching materials for non-native learners who are beginning their maritime academic career. The paper introduces initial notions on applying linguistic criteria as the basic ones in the process of creating ME textbooks. Through the historical development and under the influence of extra linguistic factors （globalization of the shipping industry, in particular）, ME has accumulated and stored various resources being in current use： vocabulary, grammar and phonology, operational and semiotic systems, specific means of communication, functional models, patterns of narration and description, etc.. The proper linguistic analysis makes a secure foundation for methodology which can guarantee a better quality of ME course books for the 1st and 2nd year maritime students all over the world.
基金Sponsored by the Heilongjiang Postdoctoral Grant and the National Science Foundation for Post-doctoral Scientists of China (Grant No.20080440887)
文摘The flatwise tension(FWT) and single leg bending(SLB) tests were used to investigate the fracture behavior of honeycomb sandwich specimens.In the FWT test,only the interlaminar delamination was observed.The test results show that the interfacial peel strength is higher than the interlaminar peel strength.In terms of SLB experiment,a new fracture mode was found,namely IKP(initiation of interlaminar delamination,kinking into facesheet and propagation of interlaminar delamination).The virtual crack closure technique was applied to separate the values of Mode I and Mode II components of the strain energy release rate in SLB experiment.The finite element analysis result shows that the Mode I strain energy release rate is higher than the Mode II strain energy release rate.To simulate the failure of SLB test of honeycomb sandwich specimens,a new computational model based on the Tsai-Hill failure criterion and the cohesive zone model is proposed.In comparison with experimental results,it can be concluded that the computational model can validly simulate the IKP of a honeycomb sandwich structures with reasonable accuracy.
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.
