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基于Clementine和ULCN2005的月球测图研究

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测绘学报 2009年第4期38卷 290-295页

作者：宁晓刚 bruce King 张继贤中国测绘科学研究院北京100039 香港理工大学土地测量与地理资讯系

为使用嫦娥一号三线阵光学影像进行月球测图,本文研究月球测图的特殊性问题及其解决方案,提出基于Cle-mentine卫星影像数据和ULCN2005月球控制网进行月球测图的方法,应用商业数字摄影测量软件和自主研发的辅助软件系统进行了月球测图实... 详细信息

为使用嫦娥一号三线阵光学影像进行月球测图,本文研究月球测图的特殊性问题及其解决方案,提出基于Cle-mentine卫星影像数据和ULCN2005月球控制网进行月球测图的方法,应用商业数字摄影测量软件和自主研发的辅助软件系统进行了月球测图实验。该实验选择了月球近南极的一块区域(W109.7°～W163.4°,S69.3°～S84.2°,面积约1.5×105km2),采用10个轨道的60景Clementine的UVVIS影像、408个ULCN2005控制点(其中56个作为检查点)和1337个连接点,建立该区的DTm和地形图,水平中误差和垂直中误差分别为98.639m(0.19pixel)和1003.751m(1.93pixel)。论证基于嫦娥数据生成月球DTm和地形图的可行性。

关键词：月球测图空中三角测量嫦娥一号克莱门汀 ULCN 2005

Growth,phenology and N-utilization by invasive populations of Gunnera tinctoria

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Journal of Plant Ecology 2020年第5期13卷 589-600页

作者： maurício Cruz mantoani Alberto Benavent González Leopoldo García Sancho bruce Arthur Osborne UCD School of Biology and Environmental Science and UCD Earth Institute University College DublinBelfieldDublin 4Ireland Departamento de Farmacología Farmacognosia y BotánicaFacultad de FarmaciaUniversidad Complutense de Madrid28040 MadridSpain

Aims Gunnera tinctoria is an unusual N-fixing plant species that has become invasive worldwide,generally in environments with a low evaporative demand and/or high *** the many mechanisms that may explain its success as an introduced species,a contrasting phenology could be important but this may depend on an ability to grow and utilize nutrients under sub-optimal *** examined whether *** has an advantage in terms of a contrasting phenology and N-fixing capability,in comparisons with Juncus effusus,the native species most impacted by *** *** We made phenological assessments on a weekly or bi-weekly basis on long-established populations on Achill Island,Ireland,during *** on leaf and inflorescence number,total leaf area,light interception and above-ground biomass were collected alongside measurements of soil temperature,moisture and oxidation-reduction *** significance of N-fixing ability for supporting seasonal growth was assessed usingδ15N isotopic assessments,together with in situ acetylene reduction *** Findings The timing of the initiation of growth of *** and *** varied between 2016 and 2017,with the earlier emergence and expansion of leaves of ***,and the largest above-ground biomass associated with higher water *** early growth of *** was dependent on preformed structures,with maximum canopy development occurring in late may,prior to that of *** N-fixation was observed in march,this made a more significant contribution to growth during the later stages of canopy *** onδ15N isotopic analyses,early growth was predominantly associated with N-remobilization from the rhizomes,whilst seedlings were largely reliant on *** emphasizes the importance of nutrient mobilization for early growth and shows that the importance of an N-fixing capability may vary developmentally,as well as during different

关键词： growth invasive species Gunnera tinctoria Juncus effusus nitrogen fixation

Countermeasures for local scour at offshore wind turbine monopile foundations:A review

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Water Science and Engineering 2022年第1期15卷 15-28页

作者： Zi-hao Tang bruce melville Naresh Singhal Asaad Shamseldin Jin-hai Zheng Da-wei Guan Liang Cheng Department of Civil and Environmental Engineering The University of AucklandAuckland 1010New Zealand State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai UniversityNanjing 210098China College of Harbor Coastal and Offshore EngineeringHohai UniversityNanjing 210098China School of the Environment and Safety Engineering Jiangsu UniversityZhenjiang 212013China

Local scour at monopile foundations of offshore wind turbines is one of the most critical structural stability *** article reviews the contemporary methods of scour countermeasures at monopile *** methods include armouring countermeasures(e.g.,riprap protection)to enhance the anti-scour ability of the bed materials and flow-altering countermeasures(e.g.,collars and sacrificial piles)to reduce downflow or change flow patterns around the *** number and size-selection equations for riprap armour layers are summarised and ***,other alternative methods to riprap are briefly introduced and presented.A typical graph of the scour depth reduction with different collar sizes and elevations under specific test conditions is summarised and compared with a plot for a pile founded on a *** rates for different flow-altering countermeasures,including the collar,are listed and compared.A newly developed soil improvement method,namely microbially induced calcite precipitation(mICP),is also reviewed and introduced as a scour protection *** a popular bio-soil treatment method,mICP has a good potential as a scour countermeasure ***-soil treatment methods and traditional armouring methods are defined as active and passive soil enhancement scour countermeasures,respectively.

关键词： Wind turbine foundation Scour countermeasures Armouring countermeasures Flow-altering countermeasures mICP method

Atlas of head and neck pathology 2nd ed.

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Atlas of head and neck pathology

The Global Boundary Stratotype Section and Point （GSSP） for the base of Changhsingian Stage （Upper Permian）

2008年

作者： bruce m. Wenig

来源：畅想之星图书光盘版（南... 评论

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Episodes 2006年第3期29卷 175-182页

作者： Yugan Jin Yue Wang Charles Henderson bruce R. Wardlaw Shuzhong Shen Changqun Cao State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences 39 East Beijing Road Nanjing 210008 China Department of Geology and Geophysics University of Calgary Calgary Alberta Canada T2N 1N4 U.S. Geological Survey Reston 12201 Sunrise Valley Drive National Center VA 22092 USA

The Global Stratotype Section and Point （GSSP） for the base-Changhsingian Stage is defined at the First Appearance Datum （FAD） of the conodont Clarkina wangi within the lineage from C. longicuspidata to C. wangi at a point 88 cm above the base of the Changxing Limestone in the lower part of Bed 4 （base of 4α-2） at meishan D section, Changxing County, Zhejiang Province, South China. This level is consistent with the first appearance of Changhsingian index fusulinid Palaeofusulina sinensis and tapashanitid ammonoids. The speciation event from Clarkina longicuspidata to C. wangi occurs just above the flooding surface of the second parasequence in the Changxing Limestone. In addition, the boundary interval is clearly recognizable by the depletion of isotopic carbon ratios and the normal polarity zone appearing above the Late Wuchiapingian reversed polarity zone. Section C, about 300 m to the west of Section D, exposes more of the upper Longtan Formation. It clearly shows the transitional nature of deposition across the Longtan/Changxing formational boundary, and thus is described as a supplementary reference section.

关键词：二叠纪石灰石全球界线层型剖面和节点沉积作用牙形石

An annotated checklist of mammals of Kenya

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Zoological Research 2019年第1期40卷 3-52页

作者： Simon musila Ara monadjem Paul W.Webala bruce D.Patterson Rainer Hutterer Yvonne A.De Jong Thomas m.Butynski Geoffrey mwangi Zhong-Zheng Chen Xue-Long Jiang mammalogy Section Department of Zoology National Museums of Kenya Department of Biological Sciences University of Swaziland mammal Research Institute Department of Zoology & Entomology University of Pretoria Department of Forestry and Wildlife management Maasai Mara University Integrative Research Center Field Museum of Natural History Zoologisches Forschungsmuseum Alexander Koenig Leibniz-Institut für Biodiversit?t der Tiere Eastern Africa Primate Diversity and Conservation Program School of Natural Resources and Environmental Studies Karatina University Sino-African Joint Research Center Chinese Academy of Sciences Kunming Institute of Zoology Chinese Academy of Sciences

Kenya has a rich mammalian fauna. We reviewed recently published books and papers including the six volumes of mammals of Africa to develop an up-to-date annotated checklist of all mammals recorded from Kenya. A total of 390 species have been identified in the country, including 106 species of rodents,104 species of bats, 63 species of even-toed ungulates(including whales and dolphins), 36 species of insectivores and carnivores, 19 species of primates,five species of elephant shrews, four species of hyraxes and odd-toed ungulates, three species of afrosoricids, pangolins, and hares, and one species of aardvark, elephant, sirenian and hedgehog. The number of species in this checklist is expected to increase with additional surveys and as the taxonomic status of small mammals(e.g., bats, shrews and rodents) becomes better understood.

关键词： Checklist Rodents Bats Ungulate Carnivores Shrews Kenya

A Study of Dark matter with Spiral Galaxy Rotation Curves

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International Journal of Astronomy and Astrophysics 2019年第2期9卷 71-96页

作者： bruce Hoeneisen Universidad San Francisco de Quito Quito Ecuador

To constrain the properties of dark matter, we study spiral galaxy rotation curves measured by the THINGS collaboration. A model that describes a mixture of two self-gravitating non-relativistic ideal gases, “baryons” and “dark matter”, reproduces the measured rotation curves within observational uncertainties. The model has four parameters that are obtained by minimizing a x2 between the measured and calculated rotation curves. From these four parameters, we calculate derived galaxy parameters. We find that dark matter satisfies the Boltzmann distribution. The onset of Fermi-Dirac or Bose-Einstein degeneracy obtains disagreement with observations and we determine, with 99% confidence, that the mass of dark matter particles is mh> 16 eV if fermions, or mh> 45 eV if bosons. We measure the root-mean-square velocity of dark matter particles in the spiral galaxies. This observable is of cosmological origin and allows us to obtain the root-mean-square velocity of dark matter particles in the early universe when perturbations were still linear. Extrapolating to the past we obtain the expansion parameter at which dark matter particles become non-relativistic: ahNR=[4.17±0.34(STAT)±2.50(SYST)]×10−6. Knowing we then obtain the dark matter particle mass mh=69.0±4.2(stat)±31.0(syst)eV, and the ratio of dark matter-to-photon temperature Th/T=0.389±0.008(stat)±0.058(syst) after e+e−annihilation while dark matter remains ultra-relativistic. We repeat these measurements with ten galaxies with masses that span three orders of magnitude, and angular momenta that span five orders of magnitude, and obtain fairly consistent results. We conclude that dark matter was once in thermal equilibrium with the (pre?) Standard model particles (hence the observed Boltzmann distribution) and then decoupled from the Standard model and from self-annihilation at temperatures above mμ. These results disfavor models with freeze-out or freeze-in.

关键词： Dark matter Spiral Galaxies majorana Neutrinos

Differences between amorphous indium oxide thin films

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Progress in Natural Science:materials International 2013年第5期23卷 475-480页

作者： D.bruce Buchholz Li Zeng michael J.Bedzyk Robert P.H.Chang Department of materials Science and Engineering Northwestern University

A series of 60~nm thick indium oxide thin-films,all amorphous as determined by x-ray diffraction,were found to have physical and electrical properties that depended on the temperature of *** carrier mobility and flm conductivity decreased with decreasing deposition temperature;the best electrical properties of high mobility and conductivity were observed at a deposition temperature just below the temperature at which crystalline films *** density of the flm also decreased with deposition temperature from 7.2g/cm3 at+50℃ to 5.3g/cm3 at 100℃.

关键词： Transparent conducting oxide Semiconductor Oxide Amorphous Deposition temperature