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Approaching democracy / Larry Berman, Bruce Allen murphy. 5th ed.

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Determination of volumetric changes at an underground stone mine： a photogrammetry case study

2007年

作者： Larry Berman Bruce Allen murphy.

来源：畅想之星图书光盘版（南... 评论

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International Journal of Mining Science and Technology 2016年第1期26卷 149-154页

作者： Slaker Brent Westman Erik Ellenberger John murphy Michael Virginia Polytechnic Institute and State University Blacksburg 24060 USA Office of Mine Safety and Health Research NIOSH Pittsburgh PA 15236 USA

Photogrammetry,as a tool for monitoring underground mine deformation,is an alternative to traditional point measurement devices,and may be capable of accurate measurements in situations where technologies such as laser scanning are unsuited,undesired,or cost-prohibitive. An underground limestone mine in Ohio is used as a test case for monitoring of structurally unstable pillars. Seven pillars were photographed over in a 63 day period,punctuated by four visits. Using photogrammetry,point clouds of the mine geometry were obtained and triangulation surfaces were generated to determine volumes of change over time. Pillar spalling in the range of 0.29–4.03 m^3 of rock on individual rib faces was *** incidents of rock expansion prior to failure,and the isolated failure of a weak shale band were also observed. Much of the pillars remained unchanged during the monitoring period,which is indicative of proper alignment in the triangulated surfaces. The photographs of some ribs were of either too poor quality or had insufficient overlap,and were not included. However,photogrammetry was successfully applied to multiple ribs in quantifying the pillar geometry change over time.

关键词：地下矿山测定方法体积变化摄影测量石材变形监测三角测量岩石膨胀

Fe Nanoclusters on the Ge（001） Surface Studied by Scanning Tunneling Microscopy, Density Functional Theory Calculations and X-Ray Magnetic Circular Dichroism

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Nano Research 2011年第10期4卷 971-978页

作者： Olaf LUbben Sergey A. Krasnikov Alexei B. Preobrajenski Barry E. murphy Igor V. Shvets Centre for Research on Adaptive Nanostructures and Nanodevices （CRANN） School of Physics Trinity College Dublin Dublin 2 Ireland MAX-lab Lund University Box 118. 22100 Lund Sweden

Ge (001 ) 表面上的 Fe nanoclusters 的生长用低温度的扫描通道显微镜学(STM ) 和密度被学习了功能的理论(DFT ) 计算。STM 结果显示 Fe 在 Ge (001 ) 表面上起核心作用，形成一致尺寸的秩序井然的 nanoclusters。取决于准备条件， nan... 详细信息

Ge (001 ) 表面上的 Fe nanoclusters 的生长用低温度的扫描通道显微镜学(STM ) 和密度被学习了功能的理论(DFT ) 计算。STM 结果显示 Fe 在 Ge (001 ) 表面上起核心作用，形成一致尺寸的秩序井然的 nanoclusters。取决于准备条件， nanoclusters 的二种类型被观察在 nanocluster 以内有四或十六个 Fe 原子。结果被 DFT 计算证实。退火在 420 K 的 nanoclusters 导致 nanorow 结构的形成，由于在如此的温度的簇活动性。在 Ge (001 ) 表面上形成的 Fe nanoclusters 和 nanorow 结构显示出由 X 光检查磁性的圆形的二色性测量了的 superparamagnetic 行为。

关键词：扫描隧道显微镜 DFT计算密度泛函理论纳米团簇磁性圆二色 X射线铁团簇表面

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BOOK REVIEW

Frontiers of Education in China 2020年第1期15卷 182-184页

作者： Mark murphy University of Glasgow

Bourdieu and Chinese education:Inequality,competition,and *** Michael Mu,Karen Dooley,&Allan Luke(Eds.).Abingdon,UK:Routledge,2019.270 pp.(paperback),£36.99,ISBN:*** work of Pierre Bourdieu has an enduring appeal for education researchers,especially those who see educational practices as saturated with issues of power and *** is the standard bearer for these concerns,and the explanatory quality of his work across numerous topics ensures that his legacy lives on in his ever-growing influence over educational publications.

关键词： saturated education educational

Matrilineal Genealogy of Hynobius (Caudata:Hynobiidae) and a Temporal Perspective on Varying Levels of Diversity among Lineages of Salamanders on the Japanese Islands

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Asian Herpetological Research 2012年第4期3卷 288-302页

作者： Yuchi ZHENG Rui PENG Robert W.murphy Masaki KURO-O Lujun HU Xiaomao ZENG Department of Herpetology Chengdu Institute of BiologyChinese Academy of Sciences Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife College of Life SciencesSichuan University State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of Sciences Centre for Biodiversity and Conservation Biology Royal Ontario Museum Department of Biology Hirosaki University

Previous work found that different Japanese lineages of salamanders had quite different levels of species and genetic diversity. Lineages vary from having one to several species and the extent of genetic variation among lineages differs substantially. Most speciose,genus Hynobius contains 18 species and several potential cryptic species. We explore genetic diversity in this genus by combining comprehensive sampling and mitochondrial DNA sequences. Based on this and previous analyses of salamanders,relative times of divergence are employed to evaluate the relationship between age and diversity among the four major lineages whose distributions broadly overlap on the islands. For Hynobius,our analyses are congruent with the previously reported high level of cryptic diversity in morphology and allozymes,particularly in species composed of non-sister matrilines. Both species and genetic diversity correlate with the relative ages of the lineages. This correlation indicates that the variation in levels of diversity can be explained,to a considerable extent,by the hypothesis that older insular lineages have accumulated greater diversity. In addition to the Korean Peninsula,H. leechii might have survived in another Pleistocene glacial refugium north of the peninsula and this refugium provided a source of colonization after the last glacial maximum.

关键词： tempo of diversification salamander Japanese Archipelago Hynobius cryptic species northern glacial refugium

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烧结-硬化钢的尺寸精度

粉末冶金技术 2009年第6期27卷 468-470页

作者： Bruce Lindsley Thomas murphy Hoeganaes Corporation 1001 Taylors Lane CinnaminsonNJ 08077 USA

尺寸精度是铁基粉末冶金零件生产工艺的关键参数。除了和标准粉末冶金低合金钢的压制与烧结相关的尺寸变化外,烧结-硬化合金还会产生从奥氏体转变为马氏体的相变。马氏体是钢中密度最低的相,因此,冷却时马氏体的形成会导致零件显著胀大... 详细信息

尺寸精度是铁基粉末冶金零件生产工艺的关键参数。除了和标准粉末冶金低合金钢的压制与烧结相关的尺寸变化外,烧结-硬化合金还会产生从奥氏体转变为马氏体的相变。马氏体是钢中密度最低的相,因此,冷却时马氏体的形成会导致零件显著胀大。当马氏体转变为密度较高的铁素体与碳化物显微组织时,回火的淬硬钢发生收缩。这两种相变对零件的尺寸变化都有很大影响。另外,在Cu与C含量高的马氏体区可能有大量残余奥氏体存在。奥氏体相密度最高,所以残余奥氏体会导致压坯胀大较小。除回火处理外,马氏体与残余奥氏体的存在都会影响零件的最终尺寸。本文考察了两个烧结-硬化钢牌号,同时通过不同的后烧结热处理,研究了这两个牌号钢的尺寸变化和显微组织变化。

关键词：尺寸控制烧结-硬化膨胀仪测定法回火

Declined fitness in larvae born from long-distance migrants of anadromous Coilia nasus in the lower reaches of the Yangtze River,China

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Zoological Research 2022年第3期43卷 404-408页

作者： Yan-Fei Huang Andrew LRypel Brian Rmurphy Song-Guang Xie State Key Laboratory of Marine Resources Utilization in South China Sea Hainan UniversityHaikouHainan 570228China College of Life and Environmental Science Hunan University of Arts and SciencesChangdeHunan 415000China Department of Wildlife Fish&Conservation Biology and Center for Watershed SciencesUniversity of California DavisDavis CA 95616USA Department of Fish and Wildlife Conservation Virginia Polytechnic and State UniversityBlacksburg VA 24061USA

DEAR EDITOR,Anadromous Coilia nasus is a socioeconomically important species from the middle and lower reaches of the Yangtze River,***,we compared growth and feeding of *** larvae in four reaches along the full migration corridor of the river(640 km)to determine how fitness varies between progenies of short-and long-distance *** demonstrated that larvae collected in downstream sections grew faster,exhibited higher feeding intensities.

关键词： Coilia Yangtze faster