期刊文献+
共找到721篇文章
< 1 2 37 >
每页显示 20 50 100
基于高斯方法及Sherman-Morrison公式的暂态稳定性并行计算方法 被引量:9
1
作者 廖小兵 汪芳宗 杨萌 《电力系统保护与控制》 EI CSCD 北大核心 2017年第4期1-8,共8页
并行计算是实现大规模电力系统暂态稳定性实时分析计算的有效途径。将s级2s阶的高斯方法和扩展的Sherman-Morrison矩阵求逆公式相结合,提出了一类新的暂态稳定性并行计算方法。该方法首先利用s级2s阶的高斯方法对微分-代数方程组进行多... 并行计算是实现大规模电力系统暂态稳定性实时分析计算的有效途径。将s级2s阶的高斯方法和扩展的Sherman-Morrison矩阵求逆公式相结合,提出了一类新的暂态稳定性并行计算方法。该方法首先利用s级2s阶的高斯方法对微分-代数方程组进行多级离散,并利用严格的牛顿法对离散后的非线性方程组进行整体求解。在此基础上,按s个时间点将整体雅可比矩阵分裂成为一个分块对角矩阵和一个分块常系数矩阵。然后,以分裂后的分块对角矩阵为基础,利用扩展的Sherman-Morrison矩阵求逆公式将s个时间点上的计算任务进行"解耦"。所提方法在保持严格牛顿法的收敛性的同时具有很好的并行性。利用Open MP并行计算技术在多核计算机上对2个不同的系统算例进行了测试,结果表明,所提出的并行方法可以获得较好的加速比以及并行效率。 展开更多
关键词 暂态稳定性 并行计算 高斯方法 Sherman-morrison公式 OPENMP
在线阅读 下载PDF
Postcolonialism in Morrison' s Works——exemplified with The Bluest Eye 被引量:1
2
作者 黄波 高敏 任月芳 《海外英语》 2012年第11X期177-178,共2页
As the first African American woman winner of the Nobel Prize for literature,Toni Morrison is the most outstanding African-American woman author of the 20th century and the brightest star in contemporary African-Ameri... As the first African American woman winner of the Nobel Prize for literature,Toni Morrison is the most outstanding African-American woman author of the 20th century and the brightest star in contemporary African-American literary arena.Toni Morrison is a voluminous writer and she has published nine novels up to the present.Since 1980,her works have been getting more and more widespread attention from literary critics of the world since 1980s.The topic of postcolonialism has been the one of the focuses of Morrison' s novels.This paper is a literature review of Toni Morrison and postcolonialism in her works including the following points:a brief introduction to Morrison and her works,the research on Morrison,the post colonial theory and postcolonialism in Morrison' s works. 展开更多
关键词 Toni morrison postcolonialism IDENTITY
在线阅读 下载PDF
Morrison's Exploration of Love in Beloved
3
作者 郭志艳 刘欣 《海外英语》 2011年第12X期256-257,共2页
Toni Morrison's masterpiece Beloved is the first of a trilogy aimed at reconstructing African American history of more than 300 years. This essay explores Morrison's emphasis on love, focusing primarily on the... Toni Morrison's masterpiece Beloved is the first of a trilogy aimed at reconstructing African American history of more than 300 years. This essay explores Morrison's emphasis on love, focusing primarily on the personal relationships between Sethe, Beloved, Paul D and Denver. The various forms of love are vividly depicted in a thought-provoking way which weaving through the entire book. 展开更多
关键词 LOVE BELOVED Toni morrison
在线阅读 下载PDF
Cognitive conflict between readers and the writer under frame theory: Reinterpretation of Toni Morrison's Recitatif
4
作者 陈红梅 《Sino-US English Teaching》 2010年第11期62-65,共4页
This paper reinterprets Toni Morrison's short story Recitatif, from the perspective of frame theory in cognitive linguistics. It proposes that readers should modify their default values by activating the old and upco... This paper reinterprets Toni Morrison's short story Recitatif, from the perspective of frame theory in cognitive linguistics. It proposes that readers should modify their default values by activating the old and upcoming new information pieces so as to re-match the intended cognitive framing of the writer. It finally concludes that the real theme of the novel is not the strengthening of race codes but the discoloring of the White and the Black. 展开更多
关键词 flame theory Toni morrison Recitatif
在线阅读 下载PDF
Another Way of Thinking:Ethic Analysis of Toni Morrison's Beloved
5
作者 梁所丰 《海外英语》 2010年第1X期104-107,共4页
When people create artistic works,the creating forms never separate with moral judgment. Therefore,it is significant to study literary works from perspective of ethics. The essay tries to discuss the ethic problems or... When people create artistic works,the creating forms never separate with moral judgment. Therefore,it is significant to study literary works from perspective of ethics. The essay tries to discuss the ethic problems or ethic metamorphosis of the characters in Beloved and of the entire black people and American whites,and of the relative background of history and society. Morrison involves the problem of ethics in all her novels,and with them she expresses her expectation of the racial fusion and the spiritual cure,and her longing-for of building a much brighter world. 展开更多
关键词 ETHIC ANALYSIS Afro-American literature Toni morrison BELOVED MORAL standard
在线阅读 下载PDF
矩阵核心逆的Sherman-Morrison-Woodbury公式及其应用
6
作者 杨虹 钟金 马柏林 《江西理工大学学报》 CAS 2021年第1期98-102,共5页
为了建立矩阵核心逆的Sherman-Morrison-Woodbury公式,文章利用值域与核的包含关系给出了矩阵A-YGZT的核心逆的表达式,推广了经典的Sherman-Morrison-Woodbury公式,并利用所得结果讨论了扰动矩阵A-YGZT的核心逆的非负性。
关键词 核心逆 值域 Sherman-morrison-Woodbury公式 非负性
在线阅读 下载PDF
A Dissolution of Borderlines in Toni Morrison's God Help the Child 被引量:2
7
作者 Grazyna Maria Teresa Branny 《Sociology Study》 2017年第7期364-370,共7页
The paper focuses on Toni Morrison's latest novel God Help the Child (2015). By presenting a skillful though somewhat perverse merger of binary oppositions at different levels (racial, social, moral, and psycholog... The paper focuses on Toni Morrison's latest novel God Help the Child (2015). By presenting a skillful though somewhat perverse merger of binary oppositions at different levels (racial, social, moral, and psychological), the writer makes borderlines of all sorts appear artificial and therefore invalidates them. Thus, childhood merges with adulthood through sexual traumas that live on; touch with no touch as the evil touch of a parent equals an abhorrence of touching the child Other; truth with a lie as it proves as destructive as lying in good faith; passing blackness with blue blackness as the former conceives the latter; and appearances with reality in the ironic title of the book, where it is both the mother and the child that in fact need God's help. Thus, as Toni Morrison demonstrates, a thoroughly surreptitious, because natural, process of dissolution of all barriers makes them appear to be arbitrary constructs responsible for the equally arbitrary notion of the Other. Taking an utterly holistic view of the nature of things, Morrison seems to suggest that borderlines are a consequence and a manifestation of a lack of balance, which therefore needs to be redressed through love, mutual understanding, and maturation. 展开更多
关键词 Toni morrison God Help the Child sexual traumas dissolution of borderlines the Other
在线阅读 下载PDF
基于Sherman-Morrison公式的K-FAC算法 被引量:1
8
作者 刘小雷 高凯新 王勇 《计算机系统应用》 2021年第4期118-124,共7页
二阶优化方法可以加速深度神经网络的训练,但是二阶优化方法巨大的计算成本使其在实际中难以被应用.因此,近些年的研究提出了许多近似二阶优化方法的算法.K-FAC算法提供了一种近似自然梯度的有效方法.在K-FAC算法的基础上,结合拟牛顿方... 二阶优化方法可以加速深度神经网络的训练,但是二阶优化方法巨大的计算成本使其在实际中难以被应用.因此,近些年的研究提出了许多近似二阶优化方法的算法.K-FAC算法提供了一种近似自然梯度的有效方法.在K-FAC算法的基础上,结合拟牛顿方法的思想,提出了一种改进的K-FAC算法.在开始的少量迭代中利用KFAC算法计算,在后续迭代中构造秩–1矩阵,通过Sherman-Morrison公式进行计算,大大降低了计算复杂度.实验结果表明,改进的K-FAC算法比K-FAC算法有相似甚至是更好的实验表现.特别的,改进的K-FAC算法与KFAC算法相比减少了大量的训练时间,而且与一阶优化方法相比,在训练时间上仍具有一定的优势. 展开更多
关键词 深度学习 二阶优化方法 K-FAC算法 Sherman-morrison公式 Fisher信息矩阵
在线阅读 下载PDF
A Review of Toni Morrison’s Nobel Prize Speech 被引量:1
9
作者 张冉 张帆 《科技信息》 2009年第12期84-84,共1页
Beginning with an old story, Toni Morrison uses her unique method to tell us the functions of language and her perspectives of language and literature. From this story, we can understand her writing standpoint and her... Beginning with an old story, Toni Morrison uses her unique method to tell us the functions of language and her perspectives of language and literature. From this story, we can understand her writing standpoint and her determination of making contributions to her nation and people. This paper tries to review her speech given in the Nobel Prize in Literature from four aspects. They are the introduction and comprehension of the story, narrative point of view, discourse and power and feminist criticism. 展开更多
关键词 文艺理论 西方 中国 评论
在线阅读 下载PDF
Re-examining the Past: Elements of Postmodern Memory in Toni Morrison's Love
10
作者 Grzegorz Kotecki 《Journal of Literature and Art Studies》 2017年第10期1229-1237,共9页
Toni Morrison's fiction may arguably be characterized as postmodern discourse on memory, history and culture. In her novels, the Nobel laureate frequently returns to the past to search for answers to the questions sh... Toni Morrison's fiction may arguably be characterized as postmodern discourse on memory, history and culture. In her novels, the Nobel laureate frequently returns to the past to search for answers to the questions she poses about African American realities in the contemporary United States. In doing so, Morrison often creates alternative histories or, more specifically, a usable past----one that allows her to engage in a literary (re-)construction of the Black historical and cultural material which traditional histories have chosen to ignore or disremember. Therefore, as a present-day writer of African American descent, Morrison attempts to reassemble all the fragmentary historical and cultural accounts available to her as a novelist and narrate them in the form of a convincing story. With regard to the above considerations, this article seeks to discuss some of the mechanisms employed by Morrison for weaving her postmodern, memory-filled narrative on the example of her eighth novel, Love (2003). In particular, the analysis focuses on the book's central figure, Bill Cosey, and his Southern ocean-side resort--both seen against the backdrop of the pre- and post-World War II racist America, followed by the 1960s decade of the Civil Rights Movement. Finally, it is also demonstrated how the author's use of split narrative as well as the "I" narrator-cum-character technique contribute to recounting in retrospect Love's main, historicized story---one viewed and judged from a present-time perspective. 展开更多
关键词 HISTORY LOVE MEMORY (the) past Toni morrison
在线阅读 下载PDF
Toni Morrison:Strong Voice for African-Americans
11
作者 WU Jing 《Sino-US English Teaching》 2020年第8期248-253,共6页
Toni Morrison,the winner of the Nobel Prize for Literature in 1993,has been hailed as one of the greatest American authors of the 20th century.Her works explore and portray blacks’destiny,history,and spiritual world,... Toni Morrison,the winner of the Nobel Prize for Literature in 1993,has been hailed as one of the greatest American authors of the 20th century.Her works explore and portray blacks’destiny,history,and spiritual world,emphasizing on gender,race,and culture.Song of Solomon and Beloved,the two novels the thesis has selected to make analysis are crucial to her writing career.Toni Morrison’s great many literary works anatomize the survival and psychological pain of African Americans under the restrain and repression of mainstream culture,trying to find out a solution. 展开更多
关键词 Toni morrison African-American writing Song of Solomon BELOVED
在线阅读 下载PDF
Magic Realism in Morrison's Paradise
12
作者 CHEN Yue-ting 《Journal of Literature and Art Studies》 2017年第8期973-981,共9页
"We Are the Furrow of His Brow"is the graffiti altered from"Beware of the Furrow of His Brow"or"The Furrow of His Brow"on the hood of an oven in a separated black town Ruby.Young people o... "We Are the Furrow of His Brow"is the graffiti altered from"Beware of the Furrow of His Brow"or"The Furrow of His Brow"on the hood of an oven in a separated black town Ruby.Young people of Ruby change the words because they feel regretted contriving to shoot an assumed guilty woman living in the nearby convent.However,whether the woman Consolata and the other four women at the convent are dead remains mysterious.There are some descriptions of magics in Paradise in which the most magical abilities are Connie's"bat vision"and"stepping in".This paper demonstrates the ways that Morrison manifests magic realism in Paradise including multiple narrative timelines,ambiguous writing,reconstituted marginal figures and naturally blended reality.Primarily in thefour ways Morrison presents how she utilizes magic realism genre to depict the changeable world penetrating through the appearance. 展开更多
关键词 Magic realism Toni morrison PARADISE
在线阅读 下载PDF
“Here Comes the New”:Individual and Collective Forgetting in Toni Morrison’s Jazz
13
作者 Grzegorz Kotecki 《Journal of Literature and Art Studies》 2023年第7期469-476,共8页
This article examines the problem of individual and collective attempts at forgetting the traumatic past in Toni Morrison’s sixth novel Jazz(1992).More specifically,it emphasizes by selected examples psychological an... This article examines the problem of individual and collective attempts at forgetting the traumatic past in Toni Morrison’s sixth novel Jazz(1992).More specifically,it emphasizes by selected examples psychological and social aspects of willful amnesia which can lend itself useful in helping traumatized(country)individuals to repress painful remembrances,heal mental wounds and build a new identity in a memory-free modern city.Analyzing Jazz’s narrative featuring Joe and Violet Trace,with a particular focus put on the expectations and experiences connected with their migration to and life in the City,the article explores via Paul Connerton’s ruminations on cultural forgetting in modern times-delineated in his book How Modernity Forgets(2009)-the mechanisms of intentional amnesia used in the process of recovering from personal and social traumas resulting from more recent(migration and urban life)and more time-distant(slavery and racism)ordeals. 展开更多
关键词 FORGETTING history JAZZ (the)past Toni morrison
在线阅读 下载PDF
"My Name Is Sorrow": The Literary-Fantastic Manifestations of Grief and Grieving in Toni Morrison's Fiction
14
作者 Grzegorz Kotecki 《Sociology Study》 2013年第4期300-308,共9页
It may be argued that one of the recurring themes in the fiction of Toni Morrison is the problem of emotional suffering. Indeed, a line of her characters endure a series of traumatic past experiences, the consequences... It may be argued that one of the recurring themes in the fiction of Toni Morrison is the problem of emotional suffering. Indeed, a line of her characters endure a series of traumatic past experiences, the consequences of which are strongly echoed in their present lives and often foreshadow their future. Thus, this article discusses some of the characteristic literary-fantastic manifestations of grief and grieving in Morrison's novels, seen as internal and external expressions of the protagonists' mental pain. First, the text outlines the major grief-generating conditions for Morrison's heroes in general, and then it focuses on the various modes in which their feelings of grief and grieving are communicated. Second, the study exposes the characters' psychological strife and the influence it exerts both on themselves and their surroundings. Third and last, the paper concludes with an attempt to establish some typical patterns of grief and grieving common to Morrison's fictional figures. In order to reflect a variety of grief-stricken individuals populating Morrison's world, the analysis examines a group of three female characters. Taken all together, the selected examples serve to exhibit the complexity of the problem in question, as well as to illustrate the different shades of human sorrow. 展开更多
关键词 GRIEF grieving loss morrison SORROW
在线阅读 下载PDF
The Ghost Daughter Returns Home: Memory of Slavery in Toni Morrison's Beloved
15
作者 Grzegorz Kotecki 《Sociology Study》 2013年第12期933-940,共8页
This article aims to present Beloved, a ghost-in-the-flesh protagonist of Toni Morrison's Pulitzer Prize-winning novel Beloved (1987), as an incarnation of memory of slavery. Interpreted as personal and shared expe... This article aims to present Beloved, a ghost-in-the-flesh protagonist of Toni Morrison's Pulitzer Prize-winning novel Beloved (1987), as an incarnation of memory of slavery. Interpreted as personal and shared experience, Beloved will be analyzed on the basis of memory's dynamic nature as an active mnemonic agent operating in and between the individual and collective zones. It will be also argued that on the one hand, Beloved embodies memories of past slaved lives of the novel's central characters, Sethe and Paul D, while on the other hand she plays the role of an allegoric reminder of all Black slaves who lived and died in bondage on the American continent. Finally, Beloved will be symbolically seen as a historical, cultural and psychological link between contemporary African Americans and their African ancestors of the Middle Passage. The theoretical framework for this study of Morrison's most memorable ghost figure will follow from a discussion of memory's individual and shared qualities, as well as from the concepts of a collective consciousness, the collective unconscious, and collective memory. 展开更多
关键词 BELOVED ghost(s) MEMORY morrison SLAVERY
在线阅读 下载PDF
利用直接数据数值法估算San Juan盆地Morrison组Westwater Canyon段的铀资源量
16
作者 R.B.McCammon W.I.Finch +2 位作者 J.O.Kork N.J.Bridges 薛禹选 《世界核地质科学》 CAS 1989年第1期40-47,共8页
最新研制的直接数据数值法被用于估算新墨西哥州San Juan盆地Morrison组Westwater Canyon段的尚未发现的铀资源量。基本地质信息取自1800个地球物理测井、40个试验井中的碎块样品和40个测量剖面的数据。利用这些数据,评价了盆地内2068... 最新研制的直接数据数值法被用于估算新墨西哥州San Juan盆地Morrison组Westwater Canyon段的尚未发现的铀资源量。基本地质信息取自1800个地球物理测井、40个试验井中的碎块样品和40个测量剖面的数据。利用这些数据,评价了盆地内2068个单元中每一个单元内铀富集的有利性。有利性是根据每一个单元中的地质特征与5种矿床模型的地质特征的对比相似关系而得出。每一个单元中尚未发现资源量的估算,是根据矿床类型、深度、边界品位和资源地区而分类的。 Westwater Canyon段的尚未发现铀资源量的估算值是2.6×10<sup>6</sup>t U<sub>3</sub>O<sub>8</sub>,估算误差0.25×10<sup>6</sup>t U<sub>3</sub>O<sub>8</sub>。估算值约两倍于美国能源部在NURE项目(铀资源评价)中所得到的数值。铀资源总量的估值是3.5×10<sup>6</sup> t U<sub>3</sub>O<sub>8</sub>,包括了已发现的资源量和尚未发现的资源量。 展开更多
关键词 铀资源 morrison SAN Juan CANYON 矿床模型 地质特征 矿床类型 资源量 数值法 有利性
在线阅读 下载PDF
上一页 1 2 37 下一页 到第
使用帮助 返回顶部