Full-waveform seismic inversions based on minimizing the distance between observed and predicted seismograms are, in principle, able to yield better-resolved earth models than those minimizing misfits derived from traveltimes alone. Adjoint-based methods provide an efficient way of calculating the gradient of the misfit function via a sequence of forward-modeling steps, which, using spectral-el...

BACKGROUND Effects of pacing-induced and coronary occlusion myocardial ischemia on left ventricular (LV) function have been compared only in anesthetized dogs. Diastolic properties of the same LV anterior wall segment were therefore compared in 12 patients with single-vessel proximal left anterior descending coronary artery stenosis at rest, immediately after 7 +/- 1.2 minutes of pacing, and at...

BACKGROUND Species number, functional traits, and phylogenetic history all contribute to characterizing the biological diversity in plant communities. The phylogenetic component of diversity has been particularly difficult to quantify in species-rich tropical tree assemblages. The compilation of previously published (and often incomplete) data on evolutionary relationships of species into a com...

Coda waves arise from scattering to form the later arriving components of a seismogram. Coda-wave interferometry (CWI) is an emerging tool for constraining earthquake source properties from the interference pattern of coda waves between nearby events. A new earthquake location algorithm is derived which relies on coda-wave-based probabilistic estimates of earthquake separation. The algorithm ca...

Dear Prof. Mozdarani,I would like to discuss about some important aspects regarding the article published in, "Iran. J. Radiat. Res., 2012 10(2): 89-94“ with title of “Patient doses from X-ray computed tomography examinations by a single-array detector unit: Axial versus spiral mode" by Ghavami et al. (1), so according to journal policy and in suitable manner please ask the authors to rep...

Knowledge of production-system performance is largely based on observations at the experimental plot scale. Although yield gaps between plot-scale and field-scale research are widely acknowledged, their extent and persistence have not been experimentally examined in a systematic manner. At a site in southwest Michigan, we conducted a 6-y experiment to test the accuracy with which plot-scale cro...

3D post-stack time migrated seismic data and a suite of composite well log from six wells drilled within the “AFUN” field Niger delta were used to effect detailed interpretation field. This was with view delineating architectural elements that control reservoir quality deepwater turbidite reservoir. The analyses done using Petrel software. LAS file logs imported into software as SEG.Y. data. Fa...