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Controlling the group velocity of light is a valuable resource for quantum and classical optical processing and high performance sensor technologies. In this context, slow-light (SL) and the associated steep dispersion have been proposed to increase the sensitivity of certain types of interferometers. Here, we show that the interaction of two intensity-balanced light beams in a SL medium can be...

The complete, historical closed-form steep lifting entry trajectory solution is documented and developed from first principles. The efficacy and accuracy of the solution is assessed for application to aeroassist missions of interest, including aerocapture and entry. Specifically, analytical assessment of the primary assumptions in the solution shows the solution is applicable across a wide rang...

Steep, natural terrain offers excellent opportunities for scientific investigations into the composition and history of Mars and other planetary bodies. In this paper, we present a prototype tethered robot, vScout (vertical scout), capable of operating in steep, rugged terrain. The primary purpose of this vehicle is to support field geologists conducting research on cliffs, in canyons, and on c...

One-way recursive wavefield extrapolation and migration has many advantages over other wavefield extrapolation methods. The method can handle complex models and is robust. However, the extrapolation of turning waves is one important omission of one-way wavefield extrapolation In this paper a new hybrid approach for the imaging of steep salt flanks is presented: CFP redatuming is used to redatum...

Themesoscopic properties of a plasma in a cylindrical magnetic field are investigated from the view point of test-particle dynamics. When the system has enough time and spatial symmetries, a Hamiltonian of a test particle is completely integrable and can be reduced to a single degree of freedomHamiltonian for each initial state. The reduced Hamiltonian sometimes has an unstable fixed point (sad...

where ρ0 is the mean density of seawater, U cos(ωt) the tidal velocity, and f the Coriolis frequency. The function M(b/h) increases monotonically with M(0)= 1, M(0.92)= 2 and M(1)=∞. As b/h→ 1, M diverges logarithmically and consequently the radiated power grows as ln[(h − b)/b]. We also calculate the conversion in a realistically stratified ocean with strongly non-uniform buoyancy frequency, N...

To the Editor:—The critique by Eger et al. on the article by Eckenhoff and Johansson concerns combining the dose–response curves of several ion channels to make them steeper. The slopes of the in vivo studies are steep, whereas those of the in vitro studies are gradual. Both groups anticipate that when several binding sites among ion channels are combined, the dose–response curves may become st...

We introduce three deenitions of the q-analogs of Motzkin numbers and illustrate some combinatorial interpretations of these q-numbers. We relate the rst class of q-numbers to the steep parallelogram polyominoes' generating function according to their width, perimeter and area. We show that this generating function is the quotient of two q-Bessel functions. The second class of q-Motzkin numbers...

The density collapse was observed in the improved confinement mode sustained by the hot cathode biasing in Tohoku University Heliac (TU-Heliac). The density profiles showed the steep gradient around the core plasma region before the collapse. The steep density profile collapsed accompanied with the bursting high frequency fluctuation (100 < f < 500 kHz), which had m = 2 ~ 3 poloidal mode number...