Reverse time migration (RTM) is a commonly employed imaging technique in seismic applications (e.g., to image reservoirs of oil). Its standard implementation cannot account for multiple scattering/reverberation. For this reason it has not yet found application in nondestructive evaluation (NDE). This paper applies RTM imaging to NDE applications in bounded samples, where reverberation is always...

Reverse time migration (RTM) is theoretically more accurate than traditional migration methods because it computes numerical solutions to the complete wave equation. But RTM is computationally expensive especially for 3D data. To overcome this expense, Luo amd Schuster (2004) suggested a bottom-up reverse time datuming (RTD) method that promised to significantly decrease the computational time ...

OBJECTIVE The purpose is to compare temperature rise in the pulp chamber during fabrication of provisional crowns using different materials and on different types of teeth using direct technique. MATERIALS AND METHODS An extracted, sound, caries free maxillary central incisor and a mandibular molar were selected for the study and crown preparations of all ceramic and all metal were done on ce...

Background. Cohort studies have reported that patients improve considerably after individualised homeopathic treatment. However, these results may be biased by regression to the mean (RTM). Objective. To evaluate whether the observed changes in previous cohort studies are due to RTM and to estimate RTM adjusted effects. Methods. SF-36 quality-of-life (QoL) data from a German cohort of 2827 chro...

BACKGROUND The interval from the R wave to the maximum amplitude of the T wave (RTm) contains the heart rate dependency of ventricular repolarization. METHODS AND RESULTS A computer algorithm was developed to quantify the RTm and preceding RR intervals for each of more than 50,000 beats on 24-hour ambulatory electrocardiographic (Holter) recordings to evaluate the dynamic relation between rep...

Individual differences in preschoolers' understanding that human action is caused by internal mental states, or representational theory of mind (RTM), are heritable, as are developmental disorders such as autism in which RTM is particularly impaired. We investigated whether polymorphisms of genes affecting dopamine (DA) utilization and metabolism constitute part of the molecular basis of this h...

BACKGROUND Disseminated intravascular coagulation (DIC) after liver transplantation (LT) is a difficult complication. We report a case of disseminated intravascular coagulation after deceased donor liver transplantation (DDLT) treated with recombinant thrombomodulin (rTM). CASE PRESENTATION A 30-year-old woman underwent right tri-segment split graft DDLT for acute liver failure. She developed...

In physical geodesy, the residual terrain modelling (RTM) technique is frequently used for highfrequency gravity forward modelling. In the RTM technique, a detailed elevation model is high-pass filtered in the topography domain, which is not equivalent to filtering in the gravity domain. This in-equivalence, denoted as spectral filter problem of the RTM technique, gives rise to two imperfection...

At present, the end-of-life management of thermoset composite epoxy resins is limited to incineration and landfill storage, highlighting demand for development more sustainable measures. Due their broad spectrum C-H oxyfunctionalization reactions, fungal unspecific peroxygenases (UPOs) are becoming important biotechnological tools in organic synthesis while potential use biodegradation processe...

A novel Regularising Ensemble Kalman filter Algorithm based on the Bayesian paradigm was applied to RTM processes estimate local porosity and permeability of fibrous reinforcements using measured values resin pressure flow front positions during injection. The algorithm allows detect locations defects in preform. It tested virtual experiments with two geometries, a two-dimensional rectangular p...