PURPOSE To determine the impact of flap creation methods for sub-Bowman's keratomileusis (SBK) on central Bowman's layer thickness. METHODS SBK flaps were made by Moria microkeratome for 20 subjects and by femtosecond (FEMTO) laser for 21 subjects. Corneal sublayer thicknesses were measured by ultra-high resolution optical coherence tomography before SBK and at 1 day, 1 week, 2 weeks, and 1 m...

A method for derivation of inversion formulas for the Radon transform of f (x) is given. This method allows one to construct functions ψ(x) which are easy to compute and which have the same wave fronts as f (x). This, in turn, allows one to calculate the singular support S of f (x) by computing ψ(x) given tomographic data. A simple geometrical relation between the singular supports of f andˆf ,...

In-orbit relative navigation between a networked swarm of centimeter-scale femto-spacecraft would add considerable value to range space mission concepts and applications, such as for multipoint sensing distributed sparse aperture interferometry. For femto-spacecraft, position determination be possible by inferring coarse estimates from the received signal strength indication associated with com...

In future networks, most users who will be accessing wireless broadband vehicular. Serving those cost-effectively and improving their signal quality has been the main concern of many studies. Thus, deployment Mobile Femtocell (Mobile-Femto) technology on public transportation is seen to one promising solutions. Mobile-Femto comes with its mobility interference challenges. Therefore, eliminating...

In this paper, we present a cognitive radio (CR)-based statistical framework for a two-tier heterogeneous cellular network (femto-macro network) to model the outage probability at any arbitrary secondary (femto) and primary (macro) user. A system model based on stochastic geometry (utilizing the spatial Poisson point process (PPP) theory) is applied to model the random locations and network top...

Article history: Received 1 December 2015 Accepted 31 December 2015 Available online 10 January 2016

We demonstrate a novel method for compressing and expanding microscopic one-dimensional monolayers consisting of a finite number of aligned magnetic dipoles using a pair of microscopic magnetic barriers. By measuring the interaction between the beads and the barriers, we are able to determine the pressure of the dipolar monolayers. Our sensor can measure one-dimensional pressure in the femto an...

We report a two-photon turn-on probe (AS1) that can be excited by 780 nm femto-second pulses and visualize glucose uptake and the changes in the intracellular glucose concentration in live cells and tissue by two-photon microscopy.