期刊文献+
共找到5,126篇文章
< 1 2 250 >
每页显示 20 50 100
A Thematic Analysis of Doris Lessing’ How I Finally Lost My Heart from Feminist Approach
1
作者 刘庆丽 《海外英语》 2012年第19期194-195,共2页
As a prolific writer of British literature in 20th century,Doris Lessing creates literary works which challenge in both theme and writing style.In her works,the style is distinctive and various,the thought s are deep,... As a prolific writer of British literature in 20th century,Doris Lessing creates literary works which challenge in both theme and writing style.In her works,the style is distinctive and various,the thought s are deep,ideas are sharp and new.This pa per studies women's subject consciousness and their awakenings,and at the same time,intends to explore her transcendence to western feminist criticism. 展开更多
关键词 doris lessing HOW I Finally LOST MY HEART Feminism
下载PDF
A Lacan's Three Orders Approach to Winter in July by Doris Lessing
2
作者 包亚楠 《海外英语》 2014年第21期229-230,共2页
As a famous English contemporary women writer, Doris Lessing always puts her attention on the female characters that live in South Africa. Their lives are pathetic and sad. This thesis tries to analyze one of Lessing&... As a famous English contemporary women writer, Doris Lessing always puts her attention on the female characters that live in South Africa. Their lives are pathetic and sad. This thesis tries to analyze one of Lessing's short stories— Winter in July from Lacan's three Orders approach. Lessing is a feminist, but the deeper description of the desire and struggle in men's inner world in her works is also remarkable. 展开更多
关键词 doris lessing Lacan WINTER in JULY
下载PDF
Feminist Interpretation of Doris Lessing's The Golden Notebook
3
作者 王彦 《科技信息》 2010年第24期I0122-I0123,共2页
Doris Lessing is undoubtedly one of the most influential women writers in the 20th century.In 1962,her masterpiece The Golden Notebook was published.It is regarded as the companion volume of Simon de Beauvoir's Th... Doris Lessing is undoubtedly one of the most influential women writers in the 20th century.In 1962,her masterpiece The Golden Notebook was published.It is regarded as the companion volume of Simon de Beauvoir's The Second Sex.The novel soon became popular among the feminists because of its realistic description about women's independent consciousness and their living condition.This thesis has been written with the aim to interpret The Golden Notebook from the perspective of feminism.The novel's theme,structure,characters,narrative style serve well for the aim of feminist interpretation.The thesis also innovatively discusses the challenges to feminism reflected from The Golden Notebook. 展开更多
关键词 英语 小说 《金色笔记》 课外阅读
下载PDF
Doris Lessing’s Farm Writing and Capitalist Colonial Space Production
4
作者 ZHANG Xin-yue 《Journal of Literature and Art Studies》 2021年第6期388-395,共8页
Farm is a vital image in Doris Lessing’s fiction,which is also a result of colonial space production.Through a series of discriminative land policies in a colonial society,the white farmers implement labour exploitat... Farm is a vital image in Doris Lessing’s fiction,which is also a result of colonial space production.Through a series of discriminative land policies in a colonial society,the white farmers implement labour exploitation towards natives.Meanwhile,this space also presents various contradictions among whites.Moreover,colonial space production also leads to the deconstruction of natural space.Lessing’s farm writing reveals her nostalgia of the natural landscape when the farm hasn’t been involved with the capitalist space production and her concern for human beings’unity. 展开更多
关键词 doris lessing FARM LAND space production
下载PDF
On Existentialism in Doris Lessing`s One off the Short List
5
作者 Meng Chen 《Journal of Contemporary Educational Research》 2020年第9期68-71,共4页
Doris Lessing's short story--One off the Short List,like most of her famed novels,is a manifestation of individual's living state in the lonely and absurd world.In this thesis,the writer attempts to interpret ... Doris Lessing's short story--One off the Short List,like most of her famed novels,is a manifestation of individual's living state in the lonely and absurd world.In this thesis,the writer attempts to interpret this story from the view of Sartrean existentialism by analyzing the middle aged protagonist's special journey of exploring himself with suffering of being“others”so as to indicate Lessing's pessimistic attitude to modern people's existence. 展开更多
关键词 doris lessing One off the short list EXISTENTIALISM
下载PDF
Mobility and the Experiences of Loss-Gender and Identity Crisis in Doris Lessing’s The Summer before the Dark
6
作者 ZHANG Xin-yue 《Journal of Literature and Art Studies》 2022年第4期311-319,共9页
In the 1950s,international division of labor began to expand in the context of globalization,which is illustrated by the expansion of labor division in the global Coffee industry in The Summer before the Dark.From the... In the 1950s,international division of labor began to expand in the context of globalization,which is illustrated by the expansion of labor division in the global Coffee industry in The Summer before the Dark.From the perspective of globalization,Lessing vividly reproduced the urban division space caused by the influence of mobility(generally referring to the horizontal flow of mobile individuals and capital)in Britain when widespread inflation and strikes happening,resulting in social polarization and a series of loss of experiences.They not only reflect the declining imperial image of Britain while the colonies successively declare independence,but also indicate the mental state of British citizens under the impact of globalization. 展开更多
关键词 doris lessing The Summer before the Dark MOBILITY the experiences of loss
下载PDF
Doris Lessing's Feminist Thoughts
7
作者 刘俊 《海外英语》 2018年第24期222-223,共2页
Doris Lessing's novels had a profound influence on the feminist movement, but she denied a label"feminism". She is against the practical interpretation of the literary works as a propaganda tool for a so... Doris Lessing's novels had a profound influence on the feminist movement, but she denied a label"feminism". She is against the practical interpretation of the literary works as a propaganda tool for a social movement. Her novels concern about the survival of women, thinking about women's freedom, and not limited to the discussion of gender issues. Feminism is only one of the themes of its work, and it is often combined with other themes. She started by paying attention to women's survival, but the final purpose is to care for human existence. 展开更多
关键词 lessing FEMINISM FEMALE SURVIVAL GENDER BOUNDARY
下载PDF
Doris Lessing And Martha Quest
8
《河南教育学院学报(哲学社会科学版)》 1995年第3期90-94,共5页
DorisLessingAndMarthaQuestLüLing(C.C.Statement)MarthaQuestisDorisLessing'sheroineinherfirstbook(Childrenof... DorisLessingAndMarthaQuestLüLing(C.C.Statement)MarthaQuestisDorisLessing'sheroineinherfirstbook(ChildrenofViolence)se-ries.Th... 展开更多
关键词 lessing doris
下载PDF
Analysis of coordinate time series of DORIS stations on Eurasian plate and the plate motion based on SSA and FFT 被引量:1
9
作者 Qiaoli Kong Linggang Zhang +3 位作者 Jingwei Han Changsong Li Wenhao Fang Tianfa Wang 《Geodesy and Geodynamics》 CSCD 2023年第1期90-97,共8页
This study focuses on analyzing the time series of DORIS beacon stations and plate motion of the Eurasian plate by applying Singular Spectrum Analysis(SSA)and Fast Fourier Transform(FFT).First,the rend terms and perio... This study focuses on analyzing the time series of DORIS beacon stations and plate motion of the Eurasian plate by applying Singular Spectrum Analysis(SSA)and Fast Fourier Transform(FFT).First,the rend terms and periodic signals are accurately separated by SSA,then,the periodic seasonal signals are detected using SSA,and finally,the main components of the time series are reconstructed successfully.The test results show that the nonlinear trends and seasonal signals of DORIS stations are detected successfully.The periods of the seasonal signals detected are year,half-year,and 59 days,etc.The contribution rates and slopes in E,N,and U directions of the trend items of each beacon station after reconstruction are obtained by least-square fitting.The velocities of these stations are compared with those provided by the GEODVEL2010 model,and it is found that they are in good agreement except the DIOB,MANB,and PDMB stations.Based on the DORIS coordinate time series,the velocity field on the Eurasian plate is constructed,and the test shows that the Eurasian plate moves eastward as a whole with an average velocity of 24.19±0.11 mm/y in the horizontal direction,and the average velocity of it is1.74±0.07 mm/y in the vertical direction. 展开更多
关键词 doris SSA FFT Coordinate time series Plate motion
下载PDF
HY-2卫星DORIS厘米级精密定轨 被引量:14
10
作者 朱俊 王家松 +1 位作者 陈建荣 何雨帆 《宇航学报》 EI CAS CSCD 北大核心 2013年第2期163-169,共7页
"海洋二号"(HY-2)卫星搭载了新一代DORIS接收机,可提供双频相位和伪距测量数据。针对HY-2卫星的RINEX 3.0格式的相位测量数据,研究了一种区别于传统相位观测数据处理的历元间差分处理方法,将相位观测数据转换为距离变化率观... "海洋二号"(HY-2)卫星搭载了新一代DORIS接收机,可提供双频相位和伪距测量数据。针对HY-2卫星的RINEX 3.0格式的相位测量数据,研究了一种区别于传统相位观测数据处理的历元间差分处理方法,将相位观测数据转换为距离变化率观测数据,并进行相关误差修正,建立了HY-2卫星的宏表面力和经验力等摄动模型,基于动力学定轨原理实现了基于DORIS相位观测数据的精密定轨。利用HY-2卫星的DORIS实测数据进行定轨,初步计算结果表明,径向轨道误差优于2cm、三维位置误差约10cm,满足HY-2卫星应用的厘米级轨道精度需求。 展开更多
关键词 精密定轨 doris 海洋2号卫星 相位观测 动力学
下载PDF
Preliminary Identification of a Prime Number Other Than 2 and 3, the Origin of Twin Prime Numbers, the Structure of the Chain of Prime Numbers and the Set of Prime Numbers Less Than a Given Integer
11
作者 Mady Ndiaye 《Advances in Pure Mathematics》 2024年第1期30-48,共19页
The application of the Euclidean division theorem for the positive integers allowed us to establish a set which contains all the prime numbers and this set we called it set of supposedly prime numbers and we noted it ... The application of the Euclidean division theorem for the positive integers allowed us to establish a set which contains all the prime numbers and this set we called it set of supposedly prime numbers and we noted it E<sub>sp</sub>. We subsequently established from the previous set the set of non-prime numbers (the set of numbers belonging to this set and which are not prime) denoted E<sub>np</sub>. We then extracted from the set of supposedly prime numbers the numbers which are not prime and the set of remaining number constitutes the set of prime numbers denoted E<sub>p</sub>. We have deduced from the previous set, the set of prime numbers between two natural numbers. We have explained during our demonstrations the origin of the twin prime numbers and the structure of the chain of prime numbers. 展开更多
关键词 Supposedly Prime Numbers Non-Prime Numbers Prime Numbers Prime Numbers less Than a Given Integer Prime Numbers between Two Given Integers
下载PDF
Jason-2 DORIS/SLR精密定轨 被引量:5
12
作者 彭冬菊 吴斌 曲伟菁 《宇航学报》 EI CAS CSCD 北大核心 2012年第10期1391-1400,共10页
Jason-2卫星搭载了第三代DORIS接收机DGXX,与前两代接收机相比,DGXX在时效性和数据量上都有显著提高。本文研究了DGXX接收机输出的相位观测数据与传统的Doppler数据之间的转换,并通过内符精度比较、轨道重叠检验、独立轨道比较及卫星激... Jason-2卫星搭载了第三代DORIS接收机DGXX,与前两代接收机相比,DGXX在时效性和数据量上都有显著提高。本文研究了DGXX接收机输出的相位观测数据与传统的Doppler数据之间的转换,并通过内符精度比较、轨道重叠检验、独立轨道比较及卫星激光测距(SLR)检验分析了DORIS数据独立定轨和SLR+DORIS数据联合定轨精度及SLR在联合定轨中的贡献。另外,考虑到部分DORIS地面信标站气象数据可能不够精确或缺失会影响DORIS数据中对流层延迟模型改正精度,本文通过和实测气象数据比较分析了最新的气象参数模型GPT在DORIS定轨中的应用及其对定轨精度的影响。计算结果表明:GPT模型和DORIS地面信标站实测气象数据的定轨精度相当,在无实测气象数据情况下可利用GPT模型替代;DORIS数据独立定轨和SLR+DORIS联合定轨径向均能达到1cm精度,SLR+DORIS联合定轨精度略优于DORIS独立定轨精度,联合定轨中SLR的主要贡献是能降低解算参数中的湿天顶延迟和DORIS频率漂移的相关性、保持轨道精度的长期稳定性。 展开更多
关键词 Jason-2 doris SLR 精密定轨 GPT
下载PDF
DORIS系统自主在轨实时定轨的实现与精度分析 被引量:3
13
作者 邢楠 曹建峰 +3 位作者 李培佳 黄勇 胡小工 王小亚 《宇航学报》 EI CAS CSCD 北大核心 2012年第5期533-540,共8页
国家科技重大专项高分辨率空间对地观测项目的实施,对卫星平台的自主在轨实时定轨提出了新的需求。由法国发展的DORIS实时定轨系统虽已成功应用于多个对地观测平台,但该系统从未公布其原始数据和数据处理的技术细节,因此本文尝试利用DO... 国家科技重大专项高分辨率空间对地观测项目的实施,对卫星平台的自主在轨实时定轨提出了新的需求。由法国发展的DORIS实时定轨系统虽已成功应用于多个对地观测平台,但该系统从未公布其原始数据和数据处理的技术细节,因此本文尝试利用DORIS地面主控站提供的ENVISAT标准格式多普勒数据,假设星上自主定轨时采用相同的数据,基于卡尔曼滤波算法实现(仿真)自主实时定轨。计算表明仅考虑简单的非球形引力模型,对于位置误差1km,速度误差1m/s的初始条件,2小时后滤波趋于稳定,滤波精度为十米量级,速度精度为厘米每秒级。为提高滤波计算效率,对坐标系统转换进行简化后,定轨精度仍在十米量级。基于DORIS仿真测量数据滤波计算表明,随着测量精度的提高和每圈观测弧段的增加,滤波计算的精度也会得到有效提高。 展开更多
关键词 推广卡尔曼滤波 doris ENVISAT 轨道计算
下载PDF
HY-2卫星DORIS精密定轨技术 被引量:4
14
作者 蒋兴伟 王晓慧 +2 位作者 彭海龙 钟敏 钟世明 《中国工程科学》 北大核心 2014年第6期83-89,共7页
2011年8月16日发射的海洋二号(HY-2)卫星是中国第一颗动力环境卫星,搭载的多普勒雷达和无线电定位组合系统(DORIS)作为HY-2主要定轨手段之一。本文较为详细介绍了HY-2多普勒雷达和无线电定位组合系统定轨技术流程和方法,并对其定轨结果... 2011年8月16日发射的海洋二号(HY-2)卫星是中国第一颗动力环境卫星,搭载的多普勒雷达和无线电定位组合系统(DORIS)作为HY-2主要定轨手段之一。本文较为详细介绍了HY-2多普勒雷达和无线电定位组合系统定轨技术流程和方法,并对其定轨结果进行了初步检验。 展开更多
关键词 精密定轨 GPS doris 激光测距
下载PDF
基于DORIS数据的JASON-2卫星精密定轨分析 被引量:2
15
作者 赵春梅 欧吉坤 +1 位作者 盛传贞 张小强 《地球物理学进展》 CSCD 北大核心 2013年第1期49-57,共9页
高精度的卫星轨道确定是卫星应用的基础和保证,本文以新一代DORIS接收机观测数据DORIS 3.0的相位观测数据为基础,研究了相位观测数据与传统的DORIS距离变化率数据的转换方法,并以JASON-2卫星为例,基于卫星动力学定轨原理,分析了不同数... 高精度的卫星轨道确定是卫星应用的基础和保证,本文以新一代DORIS接收机观测数据DORIS 3.0的相位观测数据为基础,研究了相位观测数据与传统的DORIS距离变化率数据的转换方法,并以JASON-2卫星为例,基于卫星动力学定轨原理,分析了不同数据类型、不同定轨方案得到的卫星轨道精度.结果表明,1)利用3天弧段的DORIS 2.2格式距离变化率数据和数据文件提供的相位中心偏差改正,或者采用模型对天线相位中心偏差进行改正并同时对地面测站进行偏心改正时,两种方案得到的轨道三维位置精度基本一致,均优于8.7cm,说明新一代DORIS接收机相位中心稳定,变化较小,采用模型进行偏差修正完全能够满足定轨精度要求.2)采用3.0格式的DORIS数据以及天线相位中心偏差修正模型和地面测站偏心改正模型时,得到的卫星定轨精度略有降低,大约为9.2cm;SLR校核残差约为6.5cm(均方根误差).3)采用2.2和3.0两种格式的DORIS数据,利用不同的定轨方案对JASON-2卫星进行精密定轨,均可以达到2cm左右的径向定轨精度,不同的定轨方案对径向定轨精度的影响可忽略不计.因此,对于最关心卫星径向定轨精度的海洋测高卫星而言,采用本文的数据格式转换方法和定轨方案,完全可以满足其定轨任务需求. 展开更多
关键词 doris doris相位数据 距离变化率 精密定轨 精度评估
下载PDF
以Doris进行雷达干涉研究生成数字高程模型(DEM) 被引量:4
16
作者 晏明星 苗放 +2 位作者 汪宝存 赖德军 漆小英 《遥感信息》 CSCD 2007年第4期36-39,I0004,共5页
雷达干涉测量技术(InSAR)以其全天候、全天时、并能快速得到DEM而引起全世界地学人员的关注。但是由于处理过程复杂及条件要求严格,目前除购买高价的商业软件外,一般的研究人员很难投入到该项技术的研究与应用中去。利用以荷兰Delft大... 雷达干涉测量技术(InSAR)以其全天候、全天时、并能快速得到DEM而引起全世界地学人员的关注。但是由于处理过程复杂及条件要求严格,目前除购买高价的商业软件外,一般的研究人员很难投入到该项技术的研究与应用中去。利用以荷兰Delft大学为主所研发的开源软件Doris来进行雷达影像生成DEM的研究,详细介绍用Doris进行干涉处理过程并提取库赛湖区域DEM,得到不亚于商业软件的干涉成果,最后对DEM精度做了对比分析。 展开更多
关键词 雷达干涉测量技术 数字高程模型 doris
下载PDF
利用DORIS测轨系统实现高精度定轨 被引量:10
17
作者 李培佳 曹建峰 +3 位作者 胡小工 黄勇 王宏 石善斌 《飞行器测控学报》 2010年第3期58-64,共7页
仿真研究DORIS测轨系统,重点考察了大气密度模型误差、测量精度、测轨网分布对定轨精度的影响。仿真结果表明,除了测轨网的地理分布,动力学模型中的大气模型误差对中低轨卫星精密定轨结果影响也较大。对ENVISAT卫星的DORIS实测数据进行... 仿真研究DORIS测轨系统,重点考察了大气密度模型误差、测量精度、测轨网分布对定轨精度的影响。仿真结果表明,除了测轨网的地理分布,动力学模型中的大气模型误差对中低轨卫星精密定轨结果影响也较大。对ENVISAT卫星的DORIS实测数据进行了定轨分析,结果表明实测数据的定轨精度比仿真精度大约低1个量级不到。综合仿真结果和实测数据进行精度分析,推断对800km高度的太阳卫星轨道,采用8个DORIS信标站布设,24h定轨,定轨三维位置精度可以达到29cm(1σ),其中径向误差为3.4cm(1σ)。若采用30个DORIS信标站布设,定轨精度可提高30%。 展开更多
关键词 doris 仿真分析 ENVISAT 精密定轨
下载PDF
利用DORIS软件进行SAR差分干涉测量提取地震形变研究 被引量:1
18
作者 任小冲 徐克科 +1 位作者 佟国功 胡丹 《河南理工大学学报(自然科学版)》 CAS 2007年第5期535-539,共5页
合成孔径雷达差分干涉测量(D-InSAR)作为一种新型的空间测量技术,具有不受时间和空间的限制、对地物有一定的穿透性等传统测量所不可比拟的特点.它可以探测由地震、火山等引起的地表细微变化信息,精度可达厘米甚至亚厘米级,所以已得到... 合成孔径雷达差分干涉测量(D-InSAR)作为一种新型的空间测量技术,具有不受时间和空间的限制、对地物有一定的穿透性等传统测量所不可比拟的特点.它可以探测由地震、火山等引起的地表细微变化信息,精度可达厘米甚至亚厘米级,所以已得到较为广泛的应用.介绍了D-InSAR技术的基本原理,阐述了DOR IS软件进行SAR数据处理的步骤,最后以Bam地震为例提取了地震同震形变干涉图. 展开更多
关键词 合成孔径雷达 doris 欧洲资源卫星 合成孔径雷达差分干涉测量
下载PDF
星基多普勒轨道确定和无线电定位组合系统(DORIS) 被引量:8
19
作者 潘科炎 《航天控制》 CSCD 北大核心 1995年第2期74-80,共7页
本文阐明DORIS系统的工作原理,系统结构组成,数据采集和处理过程,介绍了系统的运行性能,并进行了简要的误差分析,最后综合并展望了DORIS系统的应用前景。
关键词 无线电定位 doris系统 航天器轨道 定位
下载PDF
高精度DORIS定轨系统 被引量:2
20
作者 王慧君 《电光系统》 2010年第3期27-31,共5页
DORIS系统的定轨精度达到了厘米级,并且能够测量地球重力场、地球旋转、进行星上定轨等。本文首先介绍了DORIS系统的基本概况,然后对其精度进行了分析,最后介绍了DORIS快速定轨计划及其实现的功能。
关键词 doris系统 高精度定轨 精度分析 doris服务
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部