【目的】揭示实验规程过程级语义表示研究进展,发现尚需解决的关键研究问题,探究发展趋势。【文献范围】使用相关主题词在Web of Science、arXiv、Engineering Village、中国知网、万方、维普中检索筛选出76篇文献,并参考知名实验规程...【目的】揭示实验规程过程级语义表示研究进展,发现尚需解决的关键研究问题,探究发展趋势。【文献范围】使用相关主题词在Web of Science、arXiv、Engineering Village、中国知网、万方、维普中检索筛选出76篇文献,并参考知名实验规程专业期刊的提交要求和评审原则文档。【方法】在界定实验规程及其过程级语义表示相关概念基础上,从过程级语义表示方法、表示要素抽取方法以及相关表示数据应用三方面进行分析评述。【结果】实验规程的过程级语义表示研究整体处于发展初期,表示方法中表示框架尚未统一、表示要素各异,从以自然语言编写为主的实验规程中自动抽取过程级语义表示要素难度较大、效果一般,过程级语义表示的实验规程数据已在部分方向开展应用研究,整体可提升空间较大。【局限】未详细阐述面向表示要素自动抽取技术细节及数据应用方法过程。【结论】未来应融合各类表示方法的优势以探索构建包含较完整要素的统一表示框架,探索基于先进智能技术的表示要素自动抽取方法研究,探索使用过程级语义表示的实验数据开展广泛应用研究。展开更多
With the deployment of small cells and device to device communications in future heterogeneous networks,in many situations we would encounter mobile radio channels with partly blocked line of sight component,which are...With the deployment of small cells and device to device communications in future heterogeneous networks,in many situations we would encounter mobile radio channels with partly blocked line of sight component,which are well modeled by the Rician shadowed(RS) fading channel.In this paper,by the usage of Kummer transformation,a simplified representation of the RS fading channel with integral fading parameter is given.It is a finite series representation involving only exponential function and low order polynomials.This allows engineers not only the closed-form expressions for exact performance analysis over RS fading channel,but also the insights on the system design tactics.展开更多
For an entire function represented by a generalized dirichlet series, we define its maximal term, maximal modulus, order and type. We use the classical methods to study the relation between order, type and coeFFIcient...For an entire function represented by a generalized dirichlet series, we define its maximal term, maximal modulus, order and type. We use the classical methods to study the relation between order, type and coeFFIcients, exponents, which improve and generalize some results of the dirichlet series with real exponents.展开更多
文摘【目的】揭示实验规程过程级语义表示研究进展,发现尚需解决的关键研究问题,探究发展趋势。【文献范围】使用相关主题词在Web of Science、arXiv、Engineering Village、中国知网、万方、维普中检索筛选出76篇文献,并参考知名实验规程专业期刊的提交要求和评审原则文档。【方法】在界定实验规程及其过程级语义表示相关概念基础上,从过程级语义表示方法、表示要素抽取方法以及相关表示数据应用三方面进行分析评述。【结果】实验规程的过程级语义表示研究整体处于发展初期,表示方法中表示框架尚未统一、表示要素各异,从以自然语言编写为主的实验规程中自动抽取过程级语义表示要素难度较大、效果一般,过程级语义表示的实验规程数据已在部分方向开展应用研究,整体可提升空间较大。【局限】未详细阐述面向表示要素自动抽取技术细节及数据应用方法过程。【结论】未来应融合各类表示方法的优势以探索构建包含较完整要素的统一表示框架,探索基于先进智能技术的表示要素自动抽取方法研究,探索使用过程级语义表示的实验数据开展广泛应用研究。
基金sponsored by the National Natural Science Foundation of China under grant No.61171089the Training Program of the Major Research Plan of the National Natural Science Foundation of China under grant No.91438104
文摘With the deployment of small cells and device to device communications in future heterogeneous networks,in many situations we would encounter mobile radio channels with partly blocked line of sight component,which are well modeled by the Rician shadowed(RS) fading channel.In this paper,by the usage of Kummer transformation,a simplified representation of the RS fading channel with integral fading parameter is given.It is a finite series representation involving only exponential function and low order polynomials.This allows engineers not only the closed-form expressions for exact performance analysis over RS fading channel,but also the insights on the system design tactics.
基金the Natural Science Youth Foundation of Jiangxi Province (No.2007GQS0159)Research Plan Program of Education Bureau of Jiangxi Province (Nos.GJJ08161 GJJ09463)
文摘For an entire function represented by a generalized dirichlet series, we define its maximal term, maximal modulus, order and type. We use the classical methods to study the relation between order, type and coeFFIcients, exponents, which improve and generalize some results of the dirichlet series with real exponents.
