نتایج جستجو برای: time migration produces images in very specific time migration coordinates x0

تعداد نتایج: 17348146  

Journal: :مجله علوم اعصاب شفای خاتم 0
maryam borhani-haghighi a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran b. department of anatomy, tehran university of medical sciences, tehran, iran fatemeh alipour shefa neuroscience research center, khatam alanbia hospital, tehran, iran

spinal cord injury (sci) results in the damage of motor and sensory pathways. the molecular and cellular structure of the injury milieu has been shown to be vital for endogenous regeneration in most tissues. regeneration of injured central nervous system (cns) is limited by damaged cell environment. biomaterial scaffolds can reconstruct injured cns tissue following sci by promoting the migratio...

2006
Sergey Fomel

Seismic imaging based on single-scattering approximation is based on analysis of the match between the source and receiver wavefields at every image location. Wavefields at depth are functions of space and time and are reconstructed from surface data either by integral methods (Kirchhoff migration) or by differential methods (reverse-time or wavefield extrapolation migration). Different methods...

This article examines the impact of governance quality on the migration of highly educated persons. Using human capital and social transition theories of migration, two hypotheses are proposed. The cross-sectional data (for 1990 and 2000) have been used to test the hypotheses via the framework of a random utility model. Principal Component Analysis (PCA) is used to build a composite index of go...

Journal: :Journal of Demographic Economics 2018

2002
Jianhua Yu

Reflection amplitude as a function of offset is effective in characterizing lithology in oil producing basins. Experience shows that AVO inversion methods based on amplitude-preserved prestack migration typically provides a more accurate lithology estimation than NMO-based AVO analysis. However, some artifacts may be introduced into the migration section, which can obscure the estimate of reser...

Objective(s): Biocompatibility of dental biomaterials plays a critical role in regeneration of dental stem cells. The aim of present study was to evaluate the effects of novel biomaterials of TheraCal-LC (TheraCal; Bisco), Angelus mineral trioxide aggregate (MTA; Angelus), calcium-enriched mixture (CEM; BioniqueDent), and Biodentine (Septodont) on viability of human de...

Journal: :International Journal of Migration and Border Studies 2016

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