Introduction Intracardiac blood flow measurements using 4D Phase Contrast CMR (4D PC-CMR) may contain useful information about cardiac pumping. Lagrangian Coherent Structures (LCS) is a new, operator-independent method which can simplify analysis by partitioning the flow into regions with different origins and destinations. Since LCS are operator-independent, they may be used to define quantita...

We present a novel and efficient technique to extract Lagrangian coherent structures in two-dimensional time-dependent vector fields. We show that this can be achieved by employing bifurcation line extraction in the space-time representation of the vector field, and generating space-time bifurcation manifolds therefrom. To show the utility and applicability of our approach, we provide an evalua...

one of the common problems in reflection seismic records in the land is the existence of surface waves with high amplitude and low frequency which cause the most important parts of reflective signals to be masked. therefore, it is necessary to attenuate them by processing and acquisition methods. as it is impossible to attenuate the surface waves completely, and sometimes it is likely to damage...

We investigate the question of independent and coherent production of pions in high energy processes. A model for coherent production is suggested and the restrictions due to momentum conservation, charge conservation, and isospin conservation are dealt with in detail. A formalism for the isospin analysis of identical pions is developed and applied to coherent states. Results and consequences a...

health reform is the outcome of dispersed policy initiatives in different sectors, at different levels and across time. policy work which can drive coherent health reform needs to operate across the governance structures as well as the institutions that comprise healthcare systems. building policy capacity to support health reform calls for clarity regarding the nature of such policy work and t...

Background: Recently, it has been indicated that X-ray coherent scatter from biological tissues can be used to access signature of tissue. Some scientists are interested in studying this effect to get early detection of breast cancer. Since experimental methods for optimization are time consuming and expensive, some scientists suggest using simulation. Monte Carlo (MC) codes are the best...

The dequantization scheme developed in [1] is modified in the present paper to incorporate the orbital symmetry for a system of two particles. Classical functions on phase space are introduced as expectation values of operators between symmetrized coherent states of the Weyl group. The equations of motion are derived from the timedependent variational principle. An analysis of the classical tra...

A necessary and sufficient condition for the maximal entanglement of bipartite nonorthogonal pure states is found. The condition is applied to the maximal entanglement of coherent states. Some new classes of maximally entangled coherent states are explicited constructed; their limits give rise to maximally entangled Belllike states.

The propagation of the light that is emitted from both the tunable Ti:Sapphire laser (single mode) and the Coherent FAPs (multimode) is found to be modeled very well using gaussian optics. This is useful when trying to obtain a beam of a certain size at some prescribed distance from a converging lens. This technote will describe (1) gaussian optics, (2) how to calculate the beam radius after pa...