نتایج جستجو برای: reverse time migration rtm

تعداد نتایج: 2098134  

2015
Toshiaki Iba

Recombinant thrombomodulin (rTM) is widely used for septic disseminated intravascular coagulation (DIC) in Japan. Tagami and colleagues performed an analysis using a nationwide administrative database in Japan and reported that rTM did not reduce the mortality in pneumonia-associated DIC (37.6 % in the rTM group vs 37.0 % in the control group, odds ratio: 1.01 (95 % confidence interval: 0.93 to...

2014

M imaging methods are slowly but surely trending toward the solution of an inverse problem, not only for the velocity-estimation phase but also for the migration step. The general direction is toward the conventional imaging twostep process of velocity estimation followed by migration being superseded by the single full-waveform inversion (FWI) process. However, today, advanced imaging workflow...

Journal: :Frontiers in Earth Science 2021

Nowadays the ocean bottom node (OBN) acquisition is widely used in oil and gas resource exploration seismic monitoring. Conventional imaging algorithms of OBN data mainly focus on processing up-going primaries down-going first-order multiples. Up-going multiples higher-order are generally regarded as noise should be eliminated or ignored conventional migration methods. However, carry abundant i...

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