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类贝塞尔脉冲光束传输中的空间诱导色散效应 被引量:4
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作者 王新爱 杨振军 +2 位作者 胡巍 刘海英 张涛 《光子学报》 EI CAS CSCD 北大核心 2007年第6期997-1002,共6页
利用空间诱导色散概念,从理论上研究了等束腰宽度的类贝塞尔脉冲光束在自由空间中传输性质.在一阶近似的情况下,类贝塞尔脉冲光束的空间和时间部分可以做分离变量,空间部分在传输过程中保持类贝塞尔光束传输的特性,而时间波形部分的传... 利用空间诱导色散概念,从理论上研究了等束腰宽度的类贝塞尔脉冲光束在自由空间中传输性质.在一阶近似的情况下,类贝塞尔脉冲光束的空间和时间部分可以做分离变量,空间部分在传输过程中保持类贝塞尔光束传输的特性,而时间波形部分的传输遵循空间诱导色散理论.利用数值模拟方法模拟了Bessel-Gauss脉冲光束和elegant Laguerre-Gauss脉冲光束的传输.结果证实,只要传输距离小于类贝塞尔光束的无衍射距离,空间诱导群速度色散理论能够很好地描述类贝塞尔脉冲光束脉冲形状的演化过程. 展开更多
关键词 类贝塞尔脉冲光束 空间诱导群速度色散 Bessel-Gauss脉冲光束 ELEGANT Laguerre-Gauss脉冲
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HLS储存环慢加速过程的软件控制研究
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作者 李为民 谢东 +2 位作者 何多慧 刘功发 宣科 《核技术》 EI CAS CSCD 北大核心 2005年第3期176-179,共4页
合肥同步辐射光源(Hefei light source, HLS)电子储存环为非满能量注入,束流以 200 MeV 的能量注入到储存环内。当积累到一定流强后,要进行慢加速(Ramping)。本文首先介绍慢加速过程控制的原理和方法,然后介绍如何采用 Elegant 软件建... 合肥同步辐射光源(Hefei light source, HLS)电子储存环为非满能量注入,束流以 200 MeV 的能量注入到储存环内。当积累到一定流强后,要进行慢加速(Ramping)。本文首先介绍慢加速过程控制的原理和方法,然后介绍如何采用 Elegant 软件建立储存环的物理模型。对于横向运动,根据慢加速过程中工作点、色品等的变化对 Lattice 参数进行调整;对于纵向运行,对慢加速步长和高频系统进行调整。 展开更多
关键词 慢加速 Ramping表 Elegant软件 仿真
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上海深紫外自由电子激光装置从头至尾模拟计算研究
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作者 张善才 何多慧 《中国科学技术大学学报》 CAS CSCD 北大核心 2007年第4期461-465,共5页
介绍利用从头到尾模拟计算方式研究上海深紫外自由电子激光装置设计参数的结果.首先简要介绍了利用S2E方法得到的linac输出束流的品质参数,特别是在波荡器入口处的slice束流参数.然后给出88 nm SASE FEL与88 nm HGHG FEL两种工作模式下... 介绍利用从头到尾模拟计算方式研究上海深紫外自由电子激光装置设计参数的结果.首先简要介绍了利用S2E方法得到的linac输出束流的品质参数,特别是在波荡器入口处的slice束流参数.然后给出88 nm SASE FEL与88 nm HGHG FEL两种工作模式下的模拟结果.结果指出现有设计可以获得满意的输出,但是加速场的非线性分量对FEL输出特性有较大影响. 展开更多
关键词 自由电子激光 从头到尾模拟计算 PARMELA LINAC ELEGANT波荡器GENESIS 1.3
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电力系统实时仿真工具软件—ELEGANT
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作者 贺慧英 陈少昌 沈建清 《船电技术》 2002年第2期35-38,共4页
介绍ELEGANT软件的基本功能特点,深入分析该软件的仿真模型,使用方法以及在开发时应注意的问题及解决方案,该软件已经在模拟器仿真开发中成功运用。
关键词 电力系统 仿真 软件开发 ELEGANT 模型
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Elegant Ince-Gaussian beams in a quadratic-index medium 被引量:5
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作者 白志勇 邓冬梅 郭旗 《Chinese Physics B》 SCIE EI CAS CSCD 2011年第9期198-203,共6页
Elegant Ince-Gaussian beams, which are the exact solutions of the paraxial wave equation in a quadratic-index medium, are derived in elliptical coordinates. These kinds of beams are the alternative form of standard In... Elegant Ince-Gaussian beams, which are the exact solutions of the paraxial wave equation in a quadratic-index medium, are derived in elliptical coordinates. These kinds of beams are the alternative form of standard Ince-Gaussian beams and they display better symmetry between the ]nce-polynomials and the Gaussian function in mathematics. The transverse intensity distribution and the phase of the elegant Ince Gaussian beams are discussed. 展开更多
关键词 elegant Ince-Gaussian beams~ complex variables quadratic-index media elliptic coordi- nates
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Elegant Ince-Gaussian breathers in strongly nonlocal nonlinear media 被引量:4
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作者 白志勇 邓冬梅 郭旗 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第6期293-298,共6页
A novel class of optical breathers, called elegant Ince-Gaussian breathers, are presented in this paper. They are exact analytical solutions to Snyder and Mitchell's mode in an elliptic coordinate system, and their t... A novel class of optical breathers, called elegant Ince-Gaussian breathers, are presented in this paper. They are exact analytical solutions to Snyder and Mitchell's mode in an elliptic coordinate system, and their transverse structures are described by Ince-polynomials with complex arguments and a Gaussian function. We provide convincing evidence for the correctness of the solutions and the existence of the breathers via comparing the analytical solutions with numerical simulation of the nonlocal nonlinear SchrSdinger equation. 展开更多
关键词 elegant Ince Gaussian breathers nonlocal nonlinear media
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对编译器前端生成器Front的语法和语义扩展 被引量:1
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作者 朱恒伟 张明国 乔海泉 《计算机工程与应用》 CSCD 北大核心 2010年第21期66-68,共3页
针对Front相对Elegant属性语法规则在语义表达方面的不足,采用嵌入文本、增加可选结构等方式,对Front的语法和语义进行了有效扩展。用其开发了Modelica仿真建模语言编译器前端、编译了ScanGen、Diagrams及Front自身的编译前端,结果表明... 针对Front相对Elegant属性语法规则在语义表达方面的不足,采用嵌入文本、增加可选结构等方式,对Front的语法和语义进行了有效扩展。用其开发了Modelica仿真建模语言编译器前端、编译了ScanGen、Diagrams及Front自身的编译前端,结果表明,所采用的扩展思路简便易行,扩展后的Front基本具备与Elegant属性语法相当的语义表达能力,能够满足复杂语言编译器前端的需要,且保持与扩展前版本的后向兼容性。 展开更多
关键词 编译器生成器 编译器前端生成器 FRONT ELEGANT 语法 语义
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From an aging person to an elegant senior:a humanistic approach to viewing older adults 被引量:1
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作者 Fung-Kei Cheng 《Frontiers of Nursing》 CAS 2020年第3期191-201,共11页
The continuing growth in the number of adults aged 60-plus has raised global alertness of population restructuring.This demographic change,on the one hand,reduces productivity and increases public expenditure due to a... The continuing growth in the number of adults aged 60-plus has raised global alertness of population restructuring.This demographic change,on the one hand,reduces productivity and increases public expenditure due to aging,resulting in prejudice,bias,misrepresentation,and discrimination against them.On the other hand,it develops a specific consumer market segment and extends the availability and accessibility of the elderly through employment,volunteering,or grandparenting.This study argues against the stigmatization of this age group from a functional perspective that damages social cohesion.It advocates a humanistic view toward seniors to eradicate marginalization and promotes the manageability of the senior population.With the aid of advanced technology and health equity,senior adults can retain everyday competence for self-care with dignity,as well as gracefully attain physical and psychological health,autonomy,and well-being in their later life.All these considerations give medical and nursing professionals insight into how to take care of the elderly. 展开更多
关键词 demographic revolution elegant senior GERONTOLOGY optimal aging productive aging silver economy
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Species limits in the Elegant Pitta (Pitta elegans) complex from Wallacea based on bioacoustic and morphometric analysis 被引量:1
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作者 Arya Y.Yue Elize Y.X.Ng +1 位作者 James A.Eaton Frank E.Rheindt 《Avian Research》 CSCD 2020年第4期421-432,共12页
Background:The Elegant Pitta(Pitta elegans)complex displays a remarkable diversity of morphological and bioacoustic traits across five taxa currently recognized as subspecies.They differ in plumage characteristics(suc... Background:The Elegant Pitta(Pitta elegans)complex displays a remarkable diversity of morphological and bioacoustic traits across five taxa currently recognized as subspecies.They differ in plumage characteristics(such as red versus black belly patches;supercilium color and extent;and white versus black throats),in lifestyle(resident versus migratory)and in vocalizations.We investigated the morphological,bioacoustic and ecological differences across all taxa after recent studies demostrated the importance of these traits in recognizing biological species limits across pittas.Methods:Morphometric analysis was carried out by measuring tarsus,wing,tail and bill lengths of 15 specimens at the Natural History Museum,UK,and plumages were inspected across 106 unique individuals from four different repositories.Bioacoustic analysis was based on 134 range-wide sound recordings.Two types of calls,territorial calls and alarm calls,were analyzed using different sets of parameters.Principal component analysis and the Isler Criterion were applied to the measurements.Playback trials were conducted to explore the levels of response of each taxon to the call types of the other taxa.Results:The territorial call of concinna exhibits a distinct two-element motif,while elegans,maria and virginalis utter a three-element motif in which the first two elements are given in quick succession.On the other hand,vigorsii,produces both two-element and three-element motifs with longer breaks in between elements.As further corroborated by the playback trials,the three taxa elegans,virginalis and maria form a tight vocal cluster,whereas each concinna and vigorsii are distinct.The alarm call turned out to be less diagnostic even though most taxa did roughly separate into different vocal clusters.Morphometric analysis failed to produce strong differences,but plumage distinctions among multiple taxa are pronounced.Conclusions:We suggest splitting the Elegant Pitta into three biological species based on bioacoustic and—less so—plumage evidence:(1)Temminck’s Elegant Pitta P.elegans(including subspecies elegans,virginalis and maria),(2)Wallace’s Elegant Pitta P.concinna(monotypic),and(3)Banda Elegant Pitta P.vigorsii(monotypic). 展开更多
关键词 Bioacoustic analysis Elegant Pitta Morphometric analysis Pitta elegans Territorial calls
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翻译理论“信、达、雅”在“出师表”中的运用(英文)
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作者 李子英 《海外英语》 2013年第23期149-150,共2页
"Faithfulness,expressiveness and elegance",the three characters of translation criteria raised by Yan Fu,have been the heatedly-discussed topic for a long time.This thesis will focus on analyzing three trans... "Faithfulness,expressiveness and elegance",the three characters of translation criteria raised by Yan Fu,have been the heatedly-discussed topic for a long time.This thesis will focus on analyzing three translation versions of"ChushiBiao"to interpret the function of"faithfulness,expressiveness and elegance". 展开更多
关键词 FAITHFULNESS EXPRESSIVENESS ELEGANCE analyze Chush
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Propagation of Partially Coherent Elegant Hermite-Cosh-Gaussian Beam in Non-Kolmogorov Turbulence
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作者 张文赋 连洁 +5 位作者 王英顺 胡雪元 孙兆宗 赵明琳 王莹 李蒙蒙 《Chinese Physics Letters》 SCIE CAS CSCD 2015年第6期69-72,共4页
Based on the extended Huygens-Fresnel integral, analytical propagation expressions for the rms beam width and angular of partially coherent elegant Hermite cosh Caussian beam (EHChCB) in non-Kolmogorov turbulence ar... Based on the extended Huygens-Fresnel integral, analytical propagation expressions for the rms beam width and angular of partially coherent elegant Hermite cosh Caussian beam (EHChCB) in non-Kolmogorov turbulence are derived. The effects of exponent value, inner and outer scales of non-Kolmogorov turbulence on partially coherent EFIChGB are investigated quantitatively. 展开更多
关键词 Figure Propagation of Partially Coherent Elegant Hermite-Cosh-Gaussian Beam in Non-Kolmogorov Turbulence
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The Elegance of Hui-Style Residential Buildings
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作者 GUO ZHIDONG 《China Today》 2019年第3期78-80,共3页
Hui-style residential buildings are an important genre of traditional Chinese architecture,mainly found in Jixi and Wuyuan counties of Anhui Province,Chun’an County of Zhejiang Province,and Fuliang County of Jiangxi ... Hui-style residential buildings are an important genre of traditional Chinese architecture,mainly found in Jixi and Wuyuan counties of Anhui Province,Chun’an County of Zhejiang Province,and Fuliang County of Jiangxi Province.This kind of residential architecture is characterized by white walls,black tiles,and exquisite carvings,all of which retain the elegant and rustic charm of more than 600-year-old Anhui communities. 展开更多
关键词 The ELEGANCE HUI-STYLE RESIDENTIAL BUILDINGS ANHUI PROVINCE
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Chinese Yibin Liquor Culture Goes Global
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作者 YUAN Xuezhe 《Cultural and Religious Studies》 2019年第3期167-171,共5页
Chinese national culture is extensive and profound,and liquor culture is an important part of it.As an important part of Chinese liquor culture,Yibin liquor culture in Sichuan Province not only has the weight of Chine... Chinese national culture is extensive and profound,and liquor culture is an important part of it.As an important part of Chinese liquor culture,Yibin liquor culture in Sichuan Province not only has the weight of Chinese traditional culture,but also has the new characteristics of Sichuan liquor industry under the new normal.Chinese culture of moderation,loyalty and Chinese culture can be found in Yibin liquor brand.Nowadays,Yibin liquor,the capital of liquor,is popular in five continents for its rich aroma and long Chinese culture.It is of great significance to promote the dissemination of“Sichuan liquor”culture that enhances the multilingual communication of“Sichuan liquor”culture and strengthens traditional culture education to increase consumers’recognition of Chinese liquor culture. 展开更多
关键词 China Yibin LIQUOR CULTURE liquorcity ELEGANT WULIANGYE INTERNATIONAL communication
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On Chinese Famous Teas
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作者 Ji Xiaokang 《China's Foreign Trade》 1994年第4期18-19,共2页
The Chinese like tea and famous teas in particular. Tea drinking is an elegant custom and famous teas are often linked to legends, emperors, men of letters or renowned mountains, adding charm to Chinese culture. Longj... The Chinese like tea and famous teas in particular. Tea drinking is an elegant custom and famous teas are often linked to legends, emperors, men of letters or renowned mountains, adding charm to Chinese culture. Longjing (Drangon Well) Tea. The Book of Tea recorded tea produced in the Tianzhu and Lingvin temples in 展开更多
关键词 Hangzhou ELEGANT CUSTOM LETTERS MOUNTAINS renowned adding hasbeen Jiangsu TODAY
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Name Brand Pianos:Xinghai and Otto Meister
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《China's Foreign Trade》 1996年第9期50-50,共1页
The Xinghai Brand and Otto MeisterBrand pianos are produced by theBeijing Piano Factory, which wasfounded in 1949. Technical renovations havesince been carried out at the factory on manyoccasion and now it boasts a fu... The Xinghai Brand and Otto MeisterBrand pianos are produced by theBeijing Piano Factory, which wasfounded in 1949. Technical renovations havesince been carried out at the factory on manyoccasion and now it boasts a full range ofmodern production equipment as well as acontingent of professional technicians withrich experience. Its serial products, producedwith exquisite workmanship, looking elegant,and having beautiful tone, good and stableacoustic qualities and a comfortable feel,enjoy a good reputation on the market andare exported to more than 30 countries andregions in the world. These two kinds of pianos are producedin line with the international standard, with88 keys from A<sub>2</sub> to C<sup>5</sup>. 展开更多
关键词 comfortable REPUTATION factory professional EXPORTED ELEGANT ENJOY looking serial qualities
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An Elegant Coupled Model
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作者 Chanchal Guha-Roy Dilip Kumar Sinha 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 1993年第2期257-260,共4页
This paper deals with a new family of coupled wave equations which are basically nonlinear in nature. An analytical study enables us to show that these equations exhibit solitary wave profiles. Finally some remarks ar... This paper deals with a new family of coupled wave equations which are basically nonlinear in nature. An analytical study enables us to show that these equations exhibit solitary wave profiles. Finally some remarks are drawn from the standpoint of atmospheric problem. 展开更多
关键词 An Elegant Coupled Model
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Traditional Chinese Translation Discourses in Translation of Buddhist Texts--A Case Study on the Sūrangama Sūtra
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作者 PAN Lifei 《Cultural and Religious Studies》 2019年第8期433-445,共13页
The Chinese translation of the?ūra?gama Sūtra—Dafoding rulai miyin xiuzheng liaoyi zhu pusa wanhang shoulengyan jing大佛頂如來密因修證了義諸菩薩萬行首楞嚴經—is a unique classical work that articulates a specific B... The Chinese translation of the?ūra?gama Sūtra—Dafoding rulai miyin xiuzheng liaoyi zhu pusa wanhang shoulengyan jing大佛頂如來密因修證了義諸菩薩萬行首楞嚴經—is a unique classical work that articulates a specific Buddhist worldview,its recondite principles,and ways of practice.Unsurprisingly,it has attracted the attention of almost every school of Buddhism.The first full English translation of the sūtra was published by the Buddhist Text Translation Society(BTTS)in the 1970s—a decade when a number of newly established institutions embarked on the project of translating Buddhist texts into English for the first time.By contrast,China has been translating Buddhist scriptures for more than 1,000 years,which has given rise to a variety of translation discourses.Therefore,it makes sense to utilize these discourses when analyzing the recent translation of Buddhist texts into English.From the perspective of the three traditional Chinese translation discourses—Yan Fu’s three principles of fidelity,fluency,and elegance;Sengrui’s matching term and meaning;and Xuanzang’s five guidelines for not translating a term,this paper discusses translation issues by comparing the Chinese and English versions of the?ūra?gama Sūtra.This analysis reveals that the traditional Chinese translation discourses are valuable resources that should be respected in the contemporary translation of Buddhist texts into English. 展开更多
关键词 Sūrangama Sūtra fidelity FLUENCY and elegance matching phrase and meaning five guidelines for not translating a term
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Appreciating Ancient Chinese Poetry (Chinese-English Bilingual)
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《China & The World Cultural Exchange》 1993年第4期43-43,共1页
The following are two poems by well known chinese poet Li Qing zhao(1084-C.1151),who lived hme SouthernSong Dynasty(11 27-1279)、The poems are translated by Chinese Canadian N.C.Doc.Li Qingzhao was a native ofZhangqiu... The following are two poems by well known chinese poet Li Qing zhao(1084-C.1151),who lived hme SouthernSong Dynasty(11 27-1279)、The poems are translated by Chinese Canadian N.C.Doc.Li Qingzhao was a native ofZhangqiu in Qizhou(now in Shandong Province).Her early life was spent in affluence,and she and her husband,Zhao Mingcheng,devoted themselves to collecting and arranging callgraphy,painting and seals.This idyllic lifecame to an end afterjin troops had invaded the Central Plain and moved to the south of China.Her early poetrydescribes mostly her leisure life,while her late works are full of sorrow for her husband,who had died,and for hernative land in the Central Plain.She writes in a straightforward manner,and her wording is both elegant and mild. 展开更多
关键词 POETRY translated themselves DYNASTY HUSBAND painting devoted ELEGANT LIVED leisure
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Ancient Chinese Landscape Architecture
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《China & The World Cultural Exchange》 1993年第4期14-15,共2页
IN the past decade,the worldhas suddenly discovered thewonders of Chinese landscapegardening and garden architecture,and places like New York,Singaporeand London have all built Chinese-style gardens.The architectural ... IN the past decade,the worldhas suddenly discovered thewonders of Chinese landscapegardening and garden architecture,and places like New York,Singaporeand London have all built Chinese-style gardens.The architectural stylespecial to Chinese gardens has,infact,developed·a“school”of itsown.In China,the landscaped gardenhas long been a part of culture,andliterature,painting,philosophy,cal-ligraphy and folk customs have alldealt with it at one time or another.Two categories of garden architec-ture exist:the imperial garden andthe private garden.The former is,ofcourse,grand and palatial and occu-pies large tracts of land,while 展开更多
关键词 GARDEN architectural private PAINTING landscape suddenly CUSTOMS tracts ELEGANT PHILOSOPHY
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Liu Min, anOutstanding YoungDancer
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《China & The World Cultural Exchange》 1994年第2期25-26,共2页
关键词 ELEGANT CANADA Korea
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