The extraordinary sensitivity of the output field of an optical cavity to small quantum-scale displacements has led to breakthroughs such as the first detection of gravitational waves and of the motions of quantum ground-state cooled mechanical oscillators. While heterodyne detection of the output optical field of an optomechanical system exhibits asymmetries which provide a key signature that ...

Traditional MR elastography (MRE) involves the measurement of 2-D or 3-D shear wave displacement data from which the shear stiffness distribution in an object is estimated. These acquisitions often require 2 to 8 minutes for 2-D data, and as much as 30 minutes for 3-D data. When performed in vivo, patient motion and patient comfort can become an issue with these long scan times. The hypothesis ...

in this paper, using annular resonator we have designed an adding and dropping filter light based ontwo-dimensional photonic crystals. the shape of ring resonator filter adding and dropping that wehave proposed is race track. this filter has a hexagonal lattice structure of silicon bars withrefractive index 3/46 that is located in the context of air with refractive index 1. transmissionefficien...

displacement. to estimate the difference between the observed and the expected number of daily deaths during and after the heat wave, a predictive model was developed, as described in eAppendix (http://links.lww.com/EDE/A874). We also used the annual mortality data from neighboring Saint Petersburg for comparison (eFigure 1, http://links.lww.com/ EDE/A874).7 the Figure shows observed and expect...

A frequency-domain model of trombone sound production that includes the effects of wave steepening is proposed. This model builds upon the work of Msallam et al. @Proceedings of the Institute of Acoustics 19~5!, 419–424 ~1997!# by including thermoviscous wall losses in a more realistic manner, by applying wave steepening systematically to the entire instrument, and by making quantitative compar...

During October 1984, measurements of directional ocean wave spectra in high sea states were made off the coast of Chile, near Tierra del Fuego, by a synthetic aperture radar aboard the space shuttle Challenger. Simultaneously, independent measurements of ocean wave spectra were made by a complement of airborne instruments. The results indicate that a low-altitude orbiting synthetic aperture rad...

In this paper, we study the response of a practical piezoelectric transducer, used to initiate droplet pinch-off in a capillary jet, to different driving waveforms at different frequencies. The study also examines how the piezoelectric’s response affects the jet breakup into droplets. Here we study sine wave and square wave periodic signals. The piezoelectric vibrates when a periodic voltage wi...

Due to the nonlinear nature of the inter-particle contact, granular chains made of elastic spheres are known to transmit solitary waves under impulse loading. However, the localized contact between spherical granules leads to stress concentration, resulting in plastic behavior even for small forces. In this work, we investigate the effects of plasticity in wave propagation in elasto-plastic gra...

Abstract Source parameters calculated from displacement spectra of both P and S waves are used to discriminate between earthquakes quarry blasts in three regions Egypt during the 2009–2015 period. We use vertical component seismograms 440 450 explosions with M D 1.5 3.3 calculate source parameters, including scalar moments corner frequencies. The o (P,S) vs. f c P- S-wave frequency (P)/ (S) rat...

The B̃-X̃ laser-induced-fluorescence spectrum of jet-cooled isopropoxy radical (i-C3H7O[middle dot]) has been recorded. Using an isolated state model the observed rotational and fine structure of the origin band has been well simulated to determine rotational constants for both the X̃ and B̃ states and the electron spin-rotation constants of the X̃ state. The line intensities are well simulated with...