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| 1 | 网式大地电磁阻抗张量及其影响因素分析显示文摘网式大地电磁(Network-MT,N-MT)法采用长数公里至数十公里的电话线为电极线测量电场,很难形成两条笔直且相互垂直的电极线,因此阻抗张量的计算不如大地电磁法中直接.本文依据阻抗张量的旋转规则提出了一种计算N-MT阻抗张量的简便算法.依据该算法计算了中国东北地区5个N-MT测站的阻抗张量,获得了基于阻抗张量的视电阻率、相位曲线和最佳主轴方位角分布图像,为我国东北N-MT资料的进一步处理和解释提供了基础性数据.此外,本文对比分析了朝阳测站中6条N-MT观测电极线上阻抗张量旋转值与观测值之间的差异,重点讨论了产生这种系统性偏差的各种因素,提出其主要因素可能来自'电场等效各向异性'效应,即测站附近的地壳内部存在与观测电极线尺度相比拟的横向非均匀构造,而测站各电极线沿不同方向跨越不均匀构造,此时各电极线上的电场分量不遵循同一电场矢量的分解准则,导致地表观测三角形内阻抗分量不满足统一的阻抗张量旋转规则. | 陈小斌 赵国泽 汤吉 Makoto Uyeshima Hisashi Utada | 2008 | 地球物理学报2008，51，1： | 7 |
| 2 | Thermal cycling creep properties of a directionally solidified superalloy DZ125显示文摘Aero-engine turbine blades may suffer overheating during service,which can result in severe microstructural and mechanical degradation within tens of seconds.In this study,the thermal cycling creep under(950℃/15 min+1100℃/1 min)-100 MPa was performed on a directionally solidified superalloy,DZ125.The effects of overheating and thermal cycling on the creep properties were evaluated in terms of creep behavior and microstructural evolution against isothermally crept specimens under 950℃/100 MPa,950℃/270 MPa,and 1100℃/100 MPa.The results indicated that the thermal cycling creep life was reduced dramatically compared to the isothermal creep under 950℃/100 MPa.The plastic creep deformation mainly occurred during the overheating stage during the thermal cycling creep.The thermal cycling creep curve exhibited three stages,similar to the 1100℃isothermal creep,but its minimum creep rate occurred at a lower creep strain.The overheating events caused severe microstructural degradation,such as substantial dissolution ofγ'phase,earlier formation of raftedγ'microstructure,widening of theγchannels,and instability of the interfacial dislocation networks.This microstructural degradation was the main reason for the dramatic decrease in thermal cycling creep life,as the thermal cycling promoted more dislocations to cut intoγ'phase and more cracks to initiate at grain boundaries,carbides,and residual eutectic pools.This study underlines the importance of evaluating the thermal cycling creep properties of superalloys to be used as turbine blades and provides insights into the effect of thermal cycling on directionally solidified superalloys for component design. | Wenrui An Satoshi Utada Xiaotong Guo Stoichko Antonov Weiwei Zheng Jonathan Cormier Qiang Feng | 2022 | Journal of Materials Science & Technology2022，，9： | 3 |
| 3 | Coseismic piezoelectric effects due to a dislocation 1:an analytic far and early-time field solution in a homogeneous whole space显示文摘 | OGAWA T UTADA H | 2000 | Physics of the earth and planetary interiors2000，121，34： | 1 |
| 4 | Encapsulating bacteria in agarose microparticles using microfluidics for high- throughput cell analysis and isolation 显示文摘 | Eun Y J Utada A S Copeland M F | 2011 | ACS Chemical Biology2011，6，3： | 1 |
| 5 | Monodisperse Double Emulsions Generated from a Microcapillary Device 显示文摘 | Utada A S Lorenceau E Link D R | 2005 | Science2005，308，5721： | 1 |
| 6 | Monodisperse double emulsions generated from a microeapillary device 显示文摘 | Utada A S Lorenceau E Link D R | 2005 | Science2005，308，5721： | 1 |
| 7 | Dewetting instability during the formation of polymersomes from block-copolymer-stabilized double emulsions显示文摘 | Hayward R C Utada A S Dan N | 2006 | Langmuir2006，22，10： | 1 |
| 8 | Prediction of postoperative delirium after abdominal surgery in the elderly显示文摘 | Morimoto Y Yoshimura M Utada K | | 0，，01： | 1 |
| 9 | Relationship between DNA ploidy and survival in breast cancer显示文摘 | Utada Y Yoshimoto M Kasumi F | 1998 | Gan To Kagaku Ryoho1998，25，3： | 1 |
| 10 | Controllable monodisperse multiple emulsions 显示文摘 | Chu L Y Utada A S Shah R K | 2007 | Angewandte Chemie International Edition2007，46，47： | 1 |
| 11 | Monodisperse double emulsions generated from a microcapillary device显示文摘 | UTADA A S LORENCEAU E LINK D R | 2005 | Science2005，308，5721： | 1 |
| 12 | Dripping to jetting transitions in coflowing liquid streams显示文摘 | UTADA A S FERNADEZ-NIEVES A STONE H A | 2007 | Physical Review Letters2007，99，09： | 1 |
| 13 | Water content in the mantle transition zone beneath the North Pacific Derived from the Electrical Conductivity Anomaly 显示文摘 | Koyama T Shimizu H Utada H etal | 2006 | Geophysical Monograph Series2006，168，： | 1 |
| 14 | Prediction of postoperative delirium after abdominal surgery in the elderly显示文摘 | MORIMOTO Y YOSHIMURA M UTADA K | 2009 | Anesth2009，23，1： | 1 |
| 15 | Three-dimensional imaging of electrical conductivity in the mantle transition zone beneath the North Pacific Ocean by a sembglobal induction study显示文摘 | Shimizu H Utada H Baba K | 2010 | Physics of the Earth and Planetary Interiors2010，183，12： | 1 |
| 16 | Prediction of postoperative delirium after abdominal surgery in the elderly显示文摘 | MORIMOTO Y YOSHIMURA M UTADA K | 2009 | J Anesth2009，23，1： | 1 |
| 17 | Controllable monodisperse multiple emulsions显示文摘 | Chu L Y Utada A S Shah R K et aI | 2007 | Angewandte Che- mie International Edition2007，46，47： | 1 |
| 18 | Upper mantle conductivity structure of the back-are region beneath northeastern China显示文摘 | Ichiki M Uyeshima M Utada H | 2001 | Geophys Res Lett2001，28，： | 1 |
| 19 | A regularized three-dimensional magnetotelluric inversion with a minimum gradient support constraint 显示文摘 | ZHANG Luo-lei KOYAMA T UTADA H PENG Yu WANG Jia-lin | 2012 | Geophysical Journal International2012，189，1： | 1 |
| 20 | A joint interpretation of electromagnetic and seismic tomography models suggests the mantle transition zone below Europe is dry显示文摘 | Utada H Koyama T Obayashi M | 2009 | Earth and Planetary Science Letters2009，281，34： | 1 |
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