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物理研究所 [1]
青藏高原研究所 [1]
成都山地灾害与环境研... [1]
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中国科学院大学 [1]
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期刊论文 [5]
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2024 [1]
2020 [1]
2012 [2]
2007 [1]
学科主题
地球科学::地质学 [1]
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Pre-Existing Off-Fault Damage Can Impede Coseismic On-Fault Slip
期刊论文
OAI收割
GEOPHYSICAL RESEARCH LETTERS, 2024, 卷号: 51, 期号: 23, 页码: 9
作者:
Wu, C. H.
;
Cui, P.
;
Klinger, Y.
;
Tan, X. B.
;
Yi, S. J.
  |  
收藏
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浏览/下载:10/0
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提交时间:2025/01/15
earthquake
coseismic slip
pre-existing off-fault damage
fault zone structure
field evidence
The braking index of PSR B0540-69 and the associated pulsar wind nebula emission after spin-down rate transition
期刊论文
OAI收割
Monthly Notices of the Royal Astronomical Society, 2020, 卷号: 494, 页码: 1865-1870
作者:
HXMT
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收藏
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浏览/下载:52/0
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提交时间:2022/02/08
stars: magnetic field
stars: neutron
pulsars: general
Astrophysics
- High Energy Astrophysical Phenomena
Abstract: In 2011 December, PSR B054-69 experienced a spin-down rate transition (SRT), after which the spin-down power of the pulsar increased by $\sim 36{{\ \rm per\ cent}}$. About 1000 d after the SRT, the X-ray luminosity of the associated pulsar wind nebula (PWN) was found to brighten by $32\pm 8{{\ \rm per\ cent}}$. After the SRT, the braking index n of PSR B0540-69 changes from n = 2.12 to 0.03 and then keeps this value for about five years before rising to n = 0.9 in the following years. We find that most of the current models have difficulties in explaining the measured braking index. One exceptive model of the braking index evolution is the increasing dipole magnetic field of PSR B0540-69. We suggest that the field increase may result from some instabilities within the pulsar core that enhance the poloidal component at the price of toroidal component of the magnetic field. The increasing dipole magnetic field will result in the X-ray brightening of the PWN. We fit the PWN X-ray light curve by two models: one assumes a constant magnetic field within the PWN during the brightening and the other assumes an enhanced magnetic field proportional to the energy density of the PWN. It appears that the two models fit the data well, though the later model seems to fit the data a bit better. This provides marginal observational evidence that magnetic field in the PWN is generated by the termination shock. Future high-quality and high-cadence data are required to draw a solid conclusion.
The positive influence of boron-doped graphene for its supported Au clusters: enhancement of SERS and oxygen molecule adsorption
期刊论文
OAI收割
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 卷号: 14, 期号: 39, 页码: 13564
Kong, XK
;
Sun, ZY
;
Chen, QW
收藏
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浏览/下载:20/0
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提交时间:2013/09/23
RESONANCE RAMAN-SCATTERING
DIRECT VISUAL EVIDENCE
CHARGE-TRANSFER
CHEMICAL MECHANISM
SURFACE
PYRIDINE
GOLD
REDUCTION
FIELD
AG
Magnetostratigraphy of deep drilling core SG-1 in the western Qaidam Basin (NE Tibetan Plateau) and its tectonic implications
期刊论文
OAI收割
QUATERNARY RESEARCH, 2012, 卷号: 78, 期号: 1, 页码: 139-148
Zhang WL (张伟林)
;
Appel E (Appel, Erwin)
;
Fang XM (方小敏)
;
Song CH (Song, Chunhui)
;
Cirpka O (Cirpka, Olaf)
收藏
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浏览/下载:18/0
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提交时间:2013/05/23
RESOLUTION MAGNETO STRATIGRAPHY
ASTRONOMICAL CALIBRATION
PALEOMAGNETIC EVIDENCE
ENVIRONMENTAL-CHANGES
CENOZOIC DEFORMATION
GEOMAGNETIC-FIELD
QINGHAI PROVINCE
CENTRAL-ASIA
GUIDE BASIN
UPLIFT
Texture-preserving despeckling of sar images using evidence framework
期刊论文
iSwitch采集
Ieee geoscience and remote sensing letters, 2007, 卷号: 4, 期号: 4, 页码: 537-541
作者:
Li, Heng-Chao
;
Hong, Wen
;
Wu, Yi-Rong
;
Tai, Heng-Ming
收藏
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浏览/下载:24/0
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提交时间:2019/05/10
Evidence framework
Gaussian markov random field (gmrf)
Speckle reduction
Synthetic aperture radar (sar)