shear-wave velocity ( ) is an important parameter used for site characterization in geotechnical engineering. however, dispersion curve inversion is challenging for most inversion methods due to its high non-linearity and mix-determined trait. in order to overcome these problems, in this study, a joint inversion strategy is proposed based on the particle swarm optimization (pso) algorithm. the ...

Abstract We consider the reconstruction of moving sources using partial measured data. A two-step deterministic-statistical approach is proposed. In first step, an approximate direct sampling method developed to obtain locations at different times. Such information coded in priors, which critical for success Bayesian second step. The well-posedness posterior measure analyzed sense Hellinger dis...

Abstract The estimation of physical and anisotropic parameters is great importance for the characterization fractured reservoirs. Vertical fractures developing in a laterally isotropic (VTI) setting are equivalent to orthotropic (OA) media common stratified shale To obtain independent information, novel reflection coefficient approximation containing derived improve stability inversion media. s...

In the present work, a theoretical analysis of the first-order of stimulatedBrillouin scattering (SBS) in a double-clad (DC) ytterbium (Yb)-doped silica fiber laserin unidirectional pumping mode is presented.An accurate simulation for calculating SBS nonlinearity is performed by considering thecoupled differential rate equations for pump, signal and Stokes powers, as wel...

a rare case of non-puerperal uterine inversion caused by a large fundal leiomyoma in a 39-year nulliparous, infertile woman resulting in intractable hemorrhage was reported after a myomectomy. attempts to reduce the inversion vaginally by transecting the anterior and posterior cervix were unsuccessful and a laparotomy was performed. the inversion was not successfully corrected and hysterectomy ...

Abstract In this paper, we investigate shape inversion algorithms based on the computation of iterated topological derivatives for detection multiple particles coated by a complex surface impedance in two- and three-dimensional acoustic media. New closed-form formulae derivative misfit functional are derived when an approximate set unknown has already been recovered. Proofs rely followed asympt...

We perform a polarization-resolved magnetoluminescence study of excitons in ReS$_2$. observe that two linearly polarized Rydberg series are accompanied by other dark excitons, brightened an in-plane magnetic field. All extrapolate to the same single-electron bandgap, indicating observed originate either from valley or valleys related inversion symmetry, and split exchange interaction. To interp...

Approximate computing is a research area where we investigate a wide spectrum of techniques to trade off computation accuracy for better performance or energy consumption. In this work, we provide a general introduction to approximate computing. Also, we propose a taxonomy to make it easier to discuss the merits of different approximation techniques. Our taxonomy emphasizes the expected cost of...