To mitigate the impact of noise and inter-ference on multi-level-cell(MLC)flash memory with the use of low-density parity-check(LDPC)codes,we propose a dynamic write-voltage design scheme con-sidering the asymmetric p...To mitigate the impact of noise and inter-ference on multi-level-cell(MLC)flash memory with the use of low-density parity-check(LDPC)codes,we propose a dynamic write-voltage design scheme con-sidering the asymmetric property of raw bit error rate(RBER),which can obtain the optimal write voltage by minimizing a cost function.In order to further improve the decoding performance of flash memory,we put forward a low-complexity entropy-based read-voltage optimization scheme,which derives the read voltages by searching for the optimal entropy value via a log-likelihood ratio(LLR)-aware cost function.Simulation results demonstrate the superiority of our proposed dynamic write-voltage design scheme and read-voltage optimization scheme with respect to the existing counterparts.展开更多
The rhetorical structure of abstracts has been a widely discussed topic, as it can greatly enhance the abstract writing skills of second-language writers. This study aims to provide guidance on the syntactic features ...The rhetorical structure of abstracts has been a widely discussed topic, as it can greatly enhance the abstract writing skills of second-language writers. This study aims to provide guidance on the syntactic features that L2 learners can employ, as well as suggest which features they should focus on in English academic writing. To achieve this, all samples were analyzed for rhetorical moves using Hyland’s five-rhetorical move model. Additionally, all sentences were evaluated for syntactic complexity, considering measures such as global, clausal and phrasal complexity. The findings reveal that expert writers exhibit a more balanced use of syntactic complexity across moves, effectively fulfilling the rhetorical objectives of abstracts. On the other hand, MA students tend to rely excessively on embedded structures and dependent clauses in an attempt to increase complexity. The implications of these findings for academic writing research, pedagogy, and assessment are thoroughly discussed.展开更多
十九世纪后半叶英国出现以驻华使节为主体的新一代汉学家,道格思勋爵(Sir Robert K.Douglas,1838-1913)位列其中,但因其译述主题偏重中国现实与通俗知识,而非围绕经典文本和思想展开,少有关注。本文以十九世纪后半期英国汉学实用主义转...十九世纪后半叶英国出现以驻华使节为主体的新一代汉学家,道格思勋爵(Sir Robert K.Douglas,1838-1913)位列其中,但因其译述主题偏重中国现实与通俗知识,而非围绕经典文本和思想展开,少有关注。本文以十九世纪后半期英国汉学实用主义转型为背景,从文本话题选择与知识结构、副文本与知识语境构建、特殊翻译策略与知识生产杂糅三个方面考察,发现道格思译写活动的知识传播与生产的逻辑:以事实性知识积累为基础,概念性知识为辅,推进读者理性认知,最终接受译者的元认知知识。究其原因,道格思处在英国汉学转型期,他率先从以经典译介为主的文化思想抽象层面,转向知识生产的实用层面,罕有先例可循,简单的知识搬运亦难通行,因此在中国文化译介与研究中形成“选择、构建与杂糅”并行的特殊知识传播与生产方式。展开更多
基金supported in part by the NSF of China under Grants 62322106,62071131,U2001203,61871136the Guangdong Basic and Applied Basic Research Foundation under Grant 2022B1515020086+1 种基金the International Collaborative Research Program of Guangdong Science and Technology Department under Grant 2022A0505050070the Industrial R&D Project of Haoyang Electronic Co.,Ltd.under Grant 2022440002001494.
文摘To mitigate the impact of noise and inter-ference on multi-level-cell(MLC)flash memory with the use of low-density parity-check(LDPC)codes,we propose a dynamic write-voltage design scheme con-sidering the asymmetric property of raw bit error rate(RBER),which can obtain the optimal write voltage by minimizing a cost function.In order to further improve the decoding performance of flash memory,we put forward a low-complexity entropy-based read-voltage optimization scheme,which derives the read voltages by searching for the optimal entropy value via a log-likelihood ratio(LLR)-aware cost function.Simulation results demonstrate the superiority of our proposed dynamic write-voltage design scheme and read-voltage optimization scheme with respect to the existing counterparts.
文摘The rhetorical structure of abstracts has been a widely discussed topic, as it can greatly enhance the abstract writing skills of second-language writers. This study aims to provide guidance on the syntactic features that L2 learners can employ, as well as suggest which features they should focus on in English academic writing. To achieve this, all samples were analyzed for rhetorical moves using Hyland’s five-rhetorical move model. Additionally, all sentences were evaluated for syntactic complexity, considering measures such as global, clausal and phrasal complexity. The findings reveal that expert writers exhibit a more balanced use of syntactic complexity across moves, effectively fulfilling the rhetorical objectives of abstracts. On the other hand, MA students tend to rely excessively on embedded structures and dependent clauses in an attempt to increase complexity. The implications of these findings for academic writing research, pedagogy, and assessment are thoroughly discussed.
文摘十九世纪后半叶英国出现以驻华使节为主体的新一代汉学家,道格思勋爵(Sir Robert K.Douglas,1838-1913)位列其中,但因其译述主题偏重中国现实与通俗知识,而非围绕经典文本和思想展开,少有关注。本文以十九世纪后半期英国汉学实用主义转型为背景,从文本话题选择与知识结构、副文本与知识语境构建、特殊翻译策略与知识生产杂糅三个方面考察,发现道格思译写活动的知识传播与生产的逻辑:以事实性知识积累为基础,概念性知识为辅,推进读者理性认知,最终接受译者的元认知知识。究其原因,道格思处在英国汉学转型期,他率先从以经典译介为主的文化思想抽象层面,转向知识生产的实用层面,罕有先例可循,简单的知识搬运亦难通行,因此在中国文化译介与研究中形成“选择、构建与杂糅”并行的特殊知识传播与生产方式。
