检索结果-南通市图书馆

1996年

作者：谢窦克马荣张禹慎赵西西 r.s.coe

本书是作者长期在华南地区工作成果的积累，主要是“七五”和“八五”期间对华南大陆基底构造的系统、深入的研究的总结。

ISBN: (纸本)711602171X

本书是作者长期在华南地区工作成果的积累，主要是“七五”和“八五”期间对华南大陆基底构造的系统、深入的研究的总结。

关键词：造陆运动学科:研究地点:华南地区地幔

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华南大陆地壳生长过程与地幔柱构造

华东地质 1997年第2期 94-94页

作者：谢窦克马荣生张禹慎赵西西 r.s.coe

Tectonic Implications of Paleomagnetic results From Upper silurian series Along the Hexi Corridor, Gansu, China

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science China Chemistry 1993年第6期36卷 720-728页

作者：孟自芳 robert s. coe Lanzhou Institute of Geology Academia Sinica Lanzhou 730000 PRC University of California at santa Cruz USA

Characteristic directions of remanent magnetization of 38 samples from Upper silurian series (Hanxia Formation) along the Hexi Corridor passed fold test at a 99% confidence level. The corresponding paleopole is located at 45.1°N, 5.5°E (A_(95)= 4.7°, κ=25.1), close to the Late Permian pole for this area (41.4°N, 358.6°E; A_(95)= 4.3°, κ=26.6). However, there appears an obvious difference between paleolatitudes for these two stages (6°±). Based on paleomagnetic data, it can be deduced that the Hexi Corridor had probably been the western extension of the North China Block by the time of Late silurian and kept being tectonically mobile compared with the principal parts of the North China Block. In addition, paleomagnetic data reveal that the Hexi Corridor experienced a southward displacement of about 600 km during the Late Paleozoic Era.

关键词： Hexi Corridor Upper silurian series southward displacement.

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河西走廊上志留统古地磁结果的大地构造意义

中国科学（B辑） 1992年第5期B卷 531-536页

作者：孟自芳 robert s.coe 中国科学院兰州地质研究所兰州730000 美国加里福尼亚州大学圣克鲁兹分校

河西走廊上志留统旱峡组38个样品的特征剩磁方向从99％的置信度通过了褶皱检验,相应的晚志留世古地磁极位于45.1°N,5.5°E(A_(95)=4.7°,κ=2. 51),接近于该区的晚二叠世磁极位置(41.4°N,358.6°E;A_(95)=4.3°,κ=26.6);但两个时期... 详细信息

河西走廊上志留统旱峡组38个样品的特征剩磁方向从99％的置信度通过了褶皱检验,相应的晚志留世古地磁极位于45.1°N,5.5°E(A_(95)=4.7°,κ=2. 51),接近于该区的晚二叠世磁极位置(41.4°N,358.6°E;A_(95)=4.3°,κ=26.6);但两个时期的古纬度差异比较明显(6°±)。据古地磁资料推断,河西走廊很可能在晚志留世就已成为华北地块的西延部分,但构造活动性较强。古地磁资料还揭示河西走廊在晚古生代曾经历过南向位移,南移距离约600km。

关键词：河西走廊上志留统大地构造地磁

Performance Potential of Quantum Dot Light Emitting Devices for Display Applications

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Performance Potential of Quantum Dot Light Emitting Devices ...

2007亚洲显示国际会议

作者： seth coe-sullivan Jonathan s.steckel John ritter QD Vision Inc. WatertownMA 02472U.S.A. QD Vision Inc. WatertownMA 02472U.S.A. QD Vision Inc. WatertownMA 02472U.S.A.

＜正＞As a result of continued development,the external quantum efficiency of QD-LEDs has been improved by over three orders of magnitude since the early *** the current best performance of QD-LEDs lags that of OLEDs,it is im- portant to consider the rate of ***-LEDs were invented more recently than OLEDs,and have received signifi- cantly less research and development *** this,the progress in record QD-LED efficiency plotted in Fig.1 shows no evidence of *** last data point on the plot is QD Vision’s record peak performance data of 4.0%,con- tinuing the early development efforts in research labs at both MIT and UC *** performance improvements will result from future developments,supported by the understanding of the theoretical limits of LED performance for both OLEDs and *** paper will focus on these theoretical limits,and compare and contrast them to the various fla- vors of OLEDs.

关键词： QD-LEDs OLEDs Quantum Dots Materials Emissive Displays

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酒西盆地晚二叠世古地磁极及其大地构造意义

沉积学报 1990年第3期8卷 58-65页

作者：孟自芳黄华芳陈延章 robert s.coe 中国科学院兰州地质研究所美国加里福尼亚大学圣克鲁兹分校

本文根据甘肃酒西盆地大黄沟剖面上二叠统“窑沟群”的古地磁资料确定了该盆地晚二叠世古地磁极位置及该区与华北地块的大地构造关系。剖面厚度约684米,共采集33层58个样品。对全部样品进行系统退磁处理后分离出了次生成因的低温分量和... 详细信息

本文根据甘肃酒西盆地大黄沟剖面上二叠统“窑沟群”的古地磁资料确定了该盆地晚二叠世古地磁极位置及该区与华北地块的大地构造关系。剖面厚度约684米,共采集33层58个样品。对全部样品进行系统退磁处理后分离出了次生成因的低温分量和原生成因的高温分量。高温分量磁化方向经倾斜改正后密集度显著增强,平均磁化方向为-28.0°N/132.9°E(α95=4.7,K=47.1),相应的古地磁位于42.4°N/350.9°E(A95=3.9,K=67.8),均以99％以上的置信度通过了褶皱检验。由此可知,高温分量是在岩层发生褶皱之前获得的厚生剩磁,所代表的时限属基亚曼反向极性间隔。上述古地磁极位置与其他作者在山西、河北等地获得的结果极为相近,表明酒西盆地至少在晚二叠世就是华北地块的一部分。华北地块与塔里木地块在晚二叠世期间是两个独立的大地构造单元,古边界应位于酒西盆地以西,很可能是阿尔金断裂的前身或与之相当的断裂构造。

关键词：晚二叠世古地磁极大地构造盆地

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英汉对比修辞研究初探

外国语 1989年第2期12卷 42-48,55页

作者： richard M.coe 胡曙中加拿大simon-Fraser大学上海外国语学院英语系

至少从亚里斯多德时代开始就已承认用对比的方法来表现语言项目之间的差异是一种有益的教学方法。这一方法的价值已被几代人所证明,而且它在语言分析方面所产生的作用也已毫无争议。正式从对比修辞的角度来研究阅读和写作的历史不长,美... 详细信息

至少从亚里斯多德时代开始就已承认用对比的方法来表现语言项目之间的差异是一种有益的教学方法。这一方法的价值已被几代人所证明,而且它在语言分析方面所产生的作用也已毫无争议。正式从对比修辞的角度来研究阅读和写作的历史不长,美国的robert Kaplan 大概可算这一领域的始祖。1966年他在“跨文化教育的文化思维模式”一文中假设:向美国学生(指英语本族学生)和外国学生教授阅读和写作的方法不应相同。这一教学方法上的差别主要是由于修辞性质上表现出来的文化差异所致。这一假设一提出,立即受到了广泛的重视,而且仅在从假设的提出迄今的二十多年内就已涌现出不少有趣的研究成果。综合这一领域内的研究。

关键词：修辞模式修辞结构英汉对比对比修辞修辞研究文化差异汉语跨文化教育话语模式思维方式

MICrOsCOPIC ANALYsIs OF POLYCrYsTALLINE MATErIAL AT HIGH TEMPErATUrE

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Acta Metallurgica sinica(English Letters) 2004年第4期17卷 350-354页

作者： s.Imatani r.Kawakami Y.Kawano Kyoto University Sakyo-Ku Kyoto 606-8501 JapanKyoto University Sakyo-Ku Kyoto 606-8501 JapanKyoto University Sakyo-Ku Kyoto 606-8501 Japan

The microscopic analyses of polycrystalline material at high temperature were carried out. The crystal plasticity model proposed by Asaro and Needleman was applied to a polycrystal model in the finite element simulation and the crystal slip system was randomly provided for each crystal. The grain boundary sliding, which was characteristic at high temperature, was also taken into account. It was shown that the inhomo-geneous deformation develops over the polycrystal and that the strain concentration appears around the triple point of crystal grain boundary.

关键词： crystal plasticity finite element method grain boundary inho-mogeneity

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云南曲靖地区古生代可能经历过反时针旋转

地质科学 1986年第3期 232-235页

作者：刘椿赵西西 coe r.s. 梁其中中国科学院地质研究所云南地质科学研究所美国加州大学山塔克鲁茨分校

攀西古裂谷带的概念尽管在地质同行中仍未取得一致意见,但是,川西滇东地区存在着近乎南北向断裂带的事实却已为大家所接受。本文仅对分布在曲靖地区某些古生代地层的古地磁学测定结果,就这个地区的构造活动特征提出初步的看法。

关键词：古地磁学测定结果双龙潭组曲靖地区古生代地层中志留统剩余磁性磁化翠峰山群泥灰岩碳酸盐岩地磁偏角砂岩碎屑岩关底组玉龙寺组志留系浅灰色云南

Comparative study on high temperature deformation behavior and processing maps of Mg-4Zn-1rE-0.5Zr alloy with and without in-situ sub-micron sized TiB2 reinforcement

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Journal of Magnesium and Alloys 2022年第12期10卷 3520-3541页

作者： s.K.sahoo s.K.Panigrahi Department of Mechanical Engineering Indian Institute of Technology MadrasChennai-600036India Applied Magnesium research Group Center of Excellence in Materials and Manufacturing for Futuristic Mobility Indian Institute of Technology MadrasChennai-600036India

Mg-4Zn-1rE-0.5Zr (ZE41) Mg alloy is extensively used in the aerospace and automobile *** order to improve the applicability and performance,this alloy was engineered with in-situ Ti B2reinforcement to form Ti B2/ZE41 *** high temperature deformation behavior and manufacturability of the newly developed Ti B2/ZE41 composite and the parent ZE41 Mg alloy were studied via establishing constitutive modeling of flow stress,deformation activation energy and processing map over a temperature range of 250℃-450℃ and strain rate range of 0.001 s-1-10 *** predicted flow stress behavior of both materials were found to be well consistent with the experimental values.A significant improvement in activation energy was found in Ti B2/ZE41 composite (171.54 k J/mol) as compared to the ZE41 alloy (148.15 k J/mol) due to the dispersed strengthening of in-situ Ti *** processing maps were developed via dynamic material modeling.A wider workability domain and higher peak efficiency (45%) were observed in Ti B2/ZE41 composite as compared to ZE41 alloy (41%).The Dynamic recrystallization is found to be the dominating deformation mechanism for both materials;however,particle stimulated nucleation was found to be an additional mode of deformation in Ti B2/ZE41 *** twinning and stress induced cracks were observed in both the materials at low temperature and high strain rate.A narrow range of instability zone is found in the present Ti B2/ZE41 composite among the existing published literature on Mg based *** detailed microstructural characterization was carried out in both workability and instability domains to establish the governing deformation mechanisms.

关键词： ZE41 Mg composite In-situ TiB2 particles ZE41 Mg alloy Constitutive equations Processing map Dynamic recrystallization