A technique to achieve output tracking for nonminimum phase nonlinear systems with nonhyperbolic internal dynamics is presented. The present paper integrates stable inversion techniques (that achieve exact-tra@ing) with approximation techniques (that modify the internal dynamics) to circumvent the nonhyperbolicity of the internal dynamics this nonhyperbolicity is an obstruction to applying pres...

Here in, an application of a new seismic inversion algorithm in one of Iran’s oilfields is described. Stochastic (geostatistical) seismic inversion, as a complementary method to deterministic inversion, is perceived as contribution combination of geostatistics and seismic inversion algorithm. This method integrates information from different data sources with different scales, as prior informat...

We report the pressure-induced topological quantum phase transition of BiTeI single crystals using Shubnikov-de Haas oscillations of bulk Fermi surfaces. The sizes of the inner and the outer FSs of the Rashba-split bands exhibit opposite pressure dependence up to P = 3.35 GPa, indicating pressure-tunable Rashba effect. Above a critical pressure P ~ 2 GPa, the Shubnikov-de Haas frequency for the...

Focusing light through scattering media has broad applications in optical imaging, manipulation and therapy. The contrast of the focus can be quantified by peak-to-background intensity ratio (PBR). Here, we theoretically and numerically show that by using a transmission matrix inversion method to achieve focusing, within a limited field of view and under a low noise condition in transmission ma...

One major mechanism of phase variable gene expression in prokaryotes is through inversion of the promoter element for a gene or operon. This protocol describes how to detect the promoter orientation of a phase-variable gene by PCR. This protocol, including primer design, is specific to detection of the promoter orientations of hyxR, a LuxR-like response regulator in Extraintestinal Pathogenic E...

Purpose: Phase Sensitive Inversion Recovery (PSIR) is a method for generating T1-weighted images with a high contrast to noise ratio. Recent studies have shown that high quality PSIR data can be efficiently acquired at high magnetic field strengths using a 3D interleaved sequence in which two separate Turbo Field Echo (TFE) readouts are applied after each inversion pulse. We propose that the ph...

Interferometric synthetic aperture radar (InSAR) time series methods estimate the spatiotemporal evolution of surface deformation by incorporating information from multiple SAR interferograms. While various models have been developed to describe the interferometric phase and correlation statistics in individual interferograms, efforts to model the generalized covariance matrix that is directly ...

Delayed-Enhancement Cardiac Magnetic Resonance (DE-CMR) imaging with a gadolinium-based contrast agent strongly correlates with infarct size [1] and is a major tool for the assessment of myocardial viability [2]. A phase-sensitive inversion-recovery (PSIR) technique has been described at 1.5 T for assessment of myocardial infarct size [3]. With this technique, the signal polarity of the inversi...

Control can enable high-bandwidth nanopositioning needed to increase the operating speed of scanning probe microscopes (SPMs). High-speed SPMs can substantially impact the throughput of a wide range of emerging nanosciences and nanotechnologies. In particular, inversion-based control can find the feedforward input needed to account for the positioning dynamics and, thus, achieve the required pr...

Due to resource sharing among tasks, priority inversion can occur during prioritydriven preemptive scheduling. In this work, we investigate solutions to the priority inversion problem in a real-time database environment where two-phase locking is employed for concurrency control. We examine two basic schemes for addressing the priority inversion problem, one based on priority inheritance and th...