A method is presented to determine the diversity gain achieved by increasing the hopping rate in a frequency hopped spread spectrum system using frequency mean square correlation (FMSC). In particular, it is demonstrated that the detailed shape of the delay power profile of a given channel does not play a fundamental role in the determination of the performance saturation point given the FMSC o...

We report on observing photon recoil effects in the absorption of a single monochromatic light at 689~nm through an ultracold $^{88}$Sr gas, where frequency is comparable to natural linewidth narrow-line transition $5\mathrm{s^2}\, ^1\textrm{S}_0 - 5\mathrm{s}5\mathrm{p}\, ^3\textrm{P}_1$ strontium. In regime high-saturation, profile becomes asymmetric due photon-recoil shift, which same order ...

The time evolution of the reduced single electron density matrix for eight electrons in a one-dimensional finite box potential driven by an intense laser field is calculated by numerically integrating the time-dependent Hartree-Fock equations. We study the effects of the Coulomb interaction, field intensity, and frequency on the time profile of the ionization process. Our computed saturation io...

Single-pass free electron lasers require high peak currents from ultra-short electron bunches to reach saturation and an accurate measurement of bunch length and longitudinal bunch profile is necessary to control the bunch compression process from low to high beam energy. The various state-of-the-art diagnostics methods from ps to fs time scales using coherent radiation detection, RF deflection...

We report on a far above saturation absorption imaging technique to investigate the characteristics of dense packets of ultracold atoms. The transparency of the cloud is controlled by the incident light intensity as a result of the nonlinear response of the atoms to the probe beam. We detail our experimental procedure to calibrate the imaging system for reliable quantitative measurements and de...

To determine the extent to which the broad distribution in intracellular hemoglobin concentrations found in sickle erythrocytes affects the extent of intracellular polymerization of hemoglobin S, we have fractionated these cells by density using discontinuous Stractan gradients. The amount of polymer formed in the subpopulations was experimentally measured as a function of oxygen saturation usi...

This paper presents an integrated two-dimensional numerical framework for simulating rainfall-induced landslides from instability initiation to post-failure flow. To describe the entire process, three steps are considered in this study: 1) a coupled hydro-stability analysis which detects failure plane using Finite Element Method (FEM) (pre-failure stage), 2) computing local rheology of failed m...

although, iron depletion is a common disorder among athletes, little data exist regarding the effect of gymnastic training on iron status. the objective of this study was to evaluate the effect of gymnastic exercise on body iron status and hematologic profile. the present investigation involved 35 male gymnasts aged from 6 to14 yrs. serum ferritin level, total iron binding capacity (tibc), iron...

Changes in barometric pressure may be related to how people feel and how they perform. It is known that a decrease in the partial pressure of oxygen in the ambient air, which results from high altitude or hypoxia, causes decreased oxygen saturation in the blood and related performance decrement (1). Conversely, it has been shown that an increase in the partial pressure of oxygen in ambient air,...

The present paper addresses the detection of turbulence based on the Thorpe (1977) method applied to an atmosphere where saturation of water vapor occurs. The detection method proposed by Thorpe relies on the sorting in ascending order of a measured profile of a variable conserved through adiabatic processes, (e.g. potential temperature). For saturated air, the reordering should be applied to a...