Abstract Reverse time migration (RTM) is a well-established imaging technique that uses the two-way wave equation to achieve high-resolution of complex subsurface media. However, when using RTM for reverse extrapolation, source wavefield needs be stored cross-correlation with backward wavefield. This requirement results in significant storage burden on computer memory. paper introduces reconstr...

resin transfer molding (rtm) is a composite manufacturing process. a preformed fiber is placed in a closed mold and a viscous resin is injected into the mold. in this paper, a model is developed to predict the flow pattern, extent of reaction and temperature change during filling and curing in a thin rectangular mold. a numerical simulation is presented to predict the free surface and its inter...

We consider three types of electron accelerators that can be used for various applications, such as industrial, medical, cargo inspection, and isotope production require small- medium-sized machines, namely classical microtron (CM), race-track (RTM), multisection linac. review the principles their operation, specific features beam dynamics in these discuss advantages weak points, compare techni...

Introduction The goal of the U.S. National Library of Medicine (NLM) is to collect, organize and make available biomedical literature to advance medical science and improve public health. To this end, the Library has developed and maintains a number of online resources. One of the most widely-used is MEDLINE, an online database of references and abstracts from biomedical journals. The ability o...

Fine scale maps of vegetation biophysical variables are useful status indicators for monitoring and managing national parks and endangered habitats. Here, we assess in a comparative way four different retrieval methods for estimating leaf area index (LAI) in grassland: two radiative transfer model (RTM) inversion methods (one based on look-up-tables (LUT) and one based on predictive equations) ...

Incorporating overturned waves and multiples in seismic imaging is one of the most plausible means by which imaging results might be improved, particularly in regions of complex subsurface structure such as salt bodies. Existing migration methods, such as Reverse Time Migration, are usually designed to image solely with primaries, and so do not make full use of energy propagating along other wa...