نتایج جستجو برای: reverse time migration rtm

تعداد نتایج: 2098134  

Journal: :E3S web of conferences 2021

An improved Least Squares Reverse Time Migration (LSRTM) method is proposed in the paper, which can effectively improve convergence speed and imaging accuracy. Firstly, key techniques implementation of LSRTM are discussed. Secondly, a condition factor introduced iteration process conjugate gradient method. Finally, effect performance algorithm analyzed. The experiment results indicate that it u...

2011
Cuihua Dong Yu Liu Zhu Long Zhiqiang Pang Yunhui Luo Xiaozhou Li

Reversible thermochromic paper able to resist counterfeiting was prepared by adding reversible thermochromic microcapsules (RTM) to a slurry of cellulosic fibers, a process that is difficult to imitate. However, the loss of RTM is one of the biggest problems that inhibits industrial use of this approach. So, the retention of RTM in pulp was investigated. The RTM was synthesized by in-situ polym...

Journal: :SIAM Review 1997
Wing K. Chui James Glimm Folkert M. Tangerman A. P. Jardine J. S. Madsen T. M. Donnellan R. Leek

Resin Transfer Molding (RTM) has drawn interest in recent years as an attractive technique for the manufacture of advanced ber reinforced composite materials. A major issue in this new manufacturing process is the reduction of voids during the resin ll process so that products with high quality are manufactured. Process modeling is particularly useful in understanding, designing, and optimizing...

2016
Mihail Popov Chadi Akel William Jalby Pablo de Oliveira Castro

Current architecture complexity requires fine tuning of compiler and runtime parameters to achieve full potential performance. Autotuning substantially improves default parameters in many scenarios but it is a costly process requiring a long iterative evaluation. We propose an automatic piecewise autotuner based on CERE (Codelet Extractor and REplayer). CERE decomposes applications into small p...

2013
Jarno Mielikainen Bormin Huang Hung-Lung Allen Huang

The Radiative Transfer for TOVS (RTTOV) is a widely-used radiative transfer model (RTM) for calculation of radiances for satellite infrared and microwave sensors, including the 8461-channel Infrared Atmospheric Sounding Interferometer (IASI) and the 15-band Advanced Microwave Sounding Unit-A (AMSU-A). In the era of hyperspectral sounders with thousands of spectral channels, the computation of t...

Journal: :Pediatrics 2013
Takashi Honda Shohei Ogata Eri Mineo Yukako Nagamori Shinya Nakamura Yuki Bando Masahiro Ishii

Hemolytic uremic syndrome (HUS) is a life-threatening infectious disease in childhood for which there is no confirmed therapeutic strategy. Endothelial inflammation leading to microthrombosis formation via complement activation is the main pathology of HUS. Thrombomodulin is an endothelial membrane protein that has anticoagulation and anti-inflammatory effects, including the suppression of comp...

2016
Chika Kobayashi Masayuki Nagasawa Noriko Mitsuiki Akifumi Endo Yuki Aoki Toshiaki Ono Kohsuke Imai Masatoshi Takagi Michiko Kajiwara Tomohiro Morio

Hemophagocytic lymphohistiocytosis (HLH) is a fatal disease, presenting with T cell-induced dysregulated cytokine production, systemic inflammation, and frequently intractable coagulopathy. We have administered recombinant human soluble recombinant thrombomodulin (rTM) for four cases of severe childhood Epstein-Barr virus-associated HLH (EBV-HLH) in combination with anti-inflammatory therapy an...

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