Results 41 to 50 of about 4,980,754 (201)
Incorporating Nuisance Parameters in Likelihoods for Multisource Spectra
, 2011 We describe here the general mathematical approach to constructing likelihoods for fitting observed spectra in one or more dimensions with multiple sources, including the effects of systematic uncertainties represented as nuisance parameters, when the ...
Conway, J. S.
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When Darwin Met Einstein: Gravitational Lens Inversion with Genetic Algorithms
, 2005 Gravitational lensing can magnify a distant source, revealing structural detail which is normally unresolvable. Recovering this detail through an inversion of the influence of gravitational lensing, however, requires optimisation of not only lens ...
Bailer-Jones +12 more
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地震科学进展On January 23，2024 at 02:09 (Beijing time), the MS7.1 earthquake occurred in Wushi county, Aksu Prefecture, Xinjiang. The Institute of Geophysics, China Earthquake Administration initiated a rapid response after the earthquake, organized researchers in ...
Zhe Zhang +5 more
doaj +1 more source
Annals of Geophysics, 2000 Source parameters for three majo earthquakes in the East African rift are re-computed from historical seismograms and bulletins. The main shock and the largest foreshock of the August 25, 1906 earthquake sequence in the main Ethiopian rift are re-located
O. Kulhánek, A. Ayele
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Image distortion in non perturbative gravitational lensing [PDF]
, 2000 We introduce the idea of {\it shape parameters} to describe the shape of the pencil of rays connecting an observer with a source lying on his past lightcone.
A. O. Petters +20 more
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Remote Sensing, 2019 The coseismic slip on the main fault related to the 2017 Iran-Iraq Mw7.3 earthquake has been investigated by previous studies using DInSAR (differential interferometric synthetic aperture radar) ground deformation measurements.
Zhiheng Wang, Rui Zhang, Yuxin Liu
doaj +1 more source
Dizhen xuebao, 2020 基于首都圈数字地震台网的宽频带资料，首先采用CAP方法确定了永清MS4.3地震和廊坊MS3.0地震的震源机制解：永清地震节面Ⅰ的走向、倾角和滑动角分别为52°，62°和−140°，节面Ⅱ的走向、倾角和滑动角分别为300°，55°和−35°；廊坊地震节面I的走向、倾角和滑动角分别为48°，57°和−147°，节面Ⅱ的走向、倾角和滑动角分别为299°，63°和−38°。两次地震的震源机制解较为一致，推测它们可能具有相同的发震断层。利用近震转换波获得两次地震的震源深度，分别为19 km和13 km ...
He Li +4 more
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Dizhen xuebao, 2021 在进行未来破坏性地震的强地面运动数值模拟时，震源参数选取的准确性对地震动预测的结果影响很大。震源参数的确定存在很多不确定性因素，既包含随机的不确定性因素，又包含认知的不确定性因素。本文在大量地震事件及文献调研的基础上，运用统计学方法对具备随机不确定性特征的震源参数进行统计研究，以震源参数经验公式的形态建立解释其随机性和不确定性的数学模型。为了研究局部地区震源参数的定标关系特征，获得更加适用于局部地震密集区域，尤其是包含中国大陆地区在内的局部区域的震源参数的经验关系，本文从GCMT地震目录中选取了1 ...
Zongchao Li +4 more
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地震科学进展In this paper，the regional full waveform inversion using the broadband waveforms recorded by China Seismic Network were conducted, and the focal mechanism solutions of the 38 earthquakes with M≥4.0 occurred in the mainland of China during July to ...
Shanshan Liang +4 more
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Yano-Koonin-Podgoretskii Parametrisation of the Hanbury Brown-Twiss Correlator
, 1996 The Yano-Koonin-Podgoretskii (YKP) parametrisation of Hanbury Brown-Twiss (HBT) two-particle correlation functions opens new strategies for extracting the emission duration and testing the longitudinal expansion in heavy-ion collisions.
Heinz, U. +3 more
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