中文信息处理分词过程中对歧义切分字段和未登录词的识别问题一直困扰着我们,至今仍然没有很好的解决方案。笔者认为问题产生的根本原因在于源头上没有识别的标识,就此本文提出了CCSS(Case of Chinese Segmentation Solution)方案,寻求...中文信息处理分词过程中对歧义切分字段和未登录词的识别问题一直困扰着我们,至今仍然没有很好的解决方案。笔者认为问题产生的根本原因在于源头上没有识别的标识,就此本文提出了CCSS(Case of Chinese Segmentation Solution)方案,寻求建立一套文本编辑软件及与之兼容的智能系统,将自动分词与人工分词相结合,在文本编辑阶段彻底解决汉语分词问题。展开更多
本文主要介绍一种在仿真软件CoCentric System Studio(CCSS)环境下运用DSP开发包(DDK)进行DSP联合仿真的方法。该方法可以将算法仿真结果与DSP的具体实现结果在同一环境下进行测试、比较,降低了仿真与测试的复杂度,适用于含有DSP的系统...本文主要介绍一种在仿真软件CoCentric System Studio(CCSS)环境下运用DSP开发包(DDK)进行DSP联合仿真的方法。该方法可以将算法仿真结果与DSP的具体实现结果在同一环境下进行测试、比较,降低了仿真与测试的复杂度,适用于含有DSP的系统仿真。展开更多
This paper describes the ISUP (ISDN User Part of CCSS7) conformance testing theory and method according to CCITT and China national standards, and presents a successful ISUP protocol conformance testing system in detail.
Understanding the mechanical response of coal mine roofs under combined vertical overburden loads and horizontal lateral stresses is critical for assessing roof stability in longwall mining.In this study,the periodica...Understanding the mechanical response of coal mine roofs under combined vertical overburden loads and horizontal lateral stresses is critical for assessing roof stability in longwall mining.In this study,the periodically weighting roof is idealized as a rectangular thin plate model with two adjacent sides clamped and the other two simply supported(CCSS),and a composite deflection function is constructed by coupling polynomial terms with trigonometric series.The Galerkin method is applied to convert the governing partial differential equation for the deflection function into an algebraic system,deriving an analytical solution that enables modal analysis of roof deflection and stress.Results show that the deformation is predominantly controlled by the superposition of the mode with one modal number in the x direction and one in the y direction,and the mode with one modal number in the x-direction and two in the y-direction,together contributing 96.67%of the global strain energy,with the latter mode alone contributing 61.5%.High tensile stress regions are found to spatially coincide with large deflection zones.The theoretical results show high consistency with the concentration of high energy microseismic events and the peak hydraulic support resistance observed at the 14321 longwall working face in the Gubei Mine,Huainan.This study establishes a new theoretical framework for analyzing the mechanical response of mine roofs and provides a reliable approach for accurate prediction of periodic weighting.展开更多
注重以"学"(学生、学习、学校)为本,提高人才培养质量,是实现高等教育内涵发展的核心要义。本研究通过梳理国内外有关大学生学习研究的主要理论和成果,总结清华大学"中国大学生学习与发展追踪研究"(China College S...注重以"学"(学生、学习、学校)为本,提高人才培养质量,是实现高等教育内涵发展的核心要义。本研究通过梳理国内外有关大学生学习研究的主要理论和成果,总结清华大学"中国大学生学习与发展追踪研究"(China College Student Survey,CCSS)十年来在学术研究和实践改革中积累的经验与思考,结合新时代中国高等教育发展的需要与前景,提出具有中国特色的大学生学情研究的整体分析框架,并阐释大学生学情研究的学术涵义与政策价值。展开更多
文摘中文信息处理分词过程中对歧义切分字段和未登录词的识别问题一直困扰着我们,至今仍然没有很好的解决方案。笔者认为问题产生的根本原因在于源头上没有识别的标识,就此本文提出了CCSS(Case of Chinese Segmentation Solution)方案,寻求建立一套文本编辑软件及与之兼容的智能系统,将自动分词与人工分词相结合,在文本编辑阶段彻底解决汉语分词问题。
文摘This paper describes the ISUP (ISDN User Part of CCSS7) conformance testing theory and method according to CCITT and China national standards, and presents a successful ISUP protocol conformance testing system in detail.
基金supported by the Natural Science Research Project of Colleges and Universities in Anhui Province(Grant No.2024AH050374)Anhui Provincial Natural Science Foundation(Grant No.2508085QE186)+1 种基金Research Foundation for Postdoctoral of Anhui Province(Grant No.2024B817)National Natural Science Foundation of China(Grant No.52074009).
文摘Understanding the mechanical response of coal mine roofs under combined vertical overburden loads and horizontal lateral stresses is critical for assessing roof stability in longwall mining.In this study,the periodically weighting roof is idealized as a rectangular thin plate model with two adjacent sides clamped and the other two simply supported(CCSS),and a composite deflection function is constructed by coupling polynomial terms with trigonometric series.The Galerkin method is applied to convert the governing partial differential equation for the deflection function into an algebraic system,deriving an analytical solution that enables modal analysis of roof deflection and stress.Results show that the deformation is predominantly controlled by the superposition of the mode with one modal number in the x direction and one in the y direction,and the mode with one modal number in the x-direction and two in the y-direction,together contributing 96.67%of the global strain energy,with the latter mode alone contributing 61.5%.High tensile stress regions are found to spatially coincide with large deflection zones.The theoretical results show high consistency with the concentration of high energy microseismic events and the peak hydraulic support resistance observed at the 14321 longwall working face in the Gubei Mine,Huainan.This study establishes a new theoretical framework for analyzing the mechanical response of mine roofs and provides a reliable approach for accurate prediction of periodic weighting.
文摘注重以"学"(学生、学习、学校)为本,提高人才培养质量,是实现高等教育内涵发展的核心要义。本研究通过梳理国内外有关大学生学习研究的主要理论和成果,总结清华大学"中国大学生学习与发展追踪研究"(China College Student Survey,CCSS)十年来在学术研究和实践改革中积累的经验与思考,结合新时代中国高等教育发展的需要与前景,提出具有中国特色的大学生学情研究的整体分析框架,并阐释大学生学情研究的学术涵义与政策价值。
