A recently developed approach for pattern recognition using spatial filters with reduced tolerance requirements is employed for the generation of filters containing mainly phase information. As anticipated, the recognition levels were decreased, but they remain adequate for unambiguous identification together with appreciable amounts of distortion immunity. Furthermore, the information content ...

In this paper, we propose the SPR (sparse phase retrieval) method, which is a new phase retrieval method for coherent x-ray diffraction imaging (CXDI). Conventional phase retrieval methods effectively solve the problem for high signal-to-noise ratio measurements, but would not be sufficient for single biomolecular imaging which is expected to be realized with femto-second x-ray free electron la...

background and objectives : economic constraint of diseases arising from salmonella typhimurium causes the study of this zoonotic organism more important. most studies on identification and characterization of s. typhimurium are conducted at dna level. flagellin genes (flic and fljb genes encoding phase-1 and phase-2 flagella, respectively) are useful as a model system for studying genetic diff...

Different crystal phase with a same chemical structure, polymorphous, is a specific physical characteristic which determine the end usage of pigments especially in high performance ones. Diketopyrrolopyrrole DPP derivatives, as one of the innovative in heterocyclic pigments, follow this pattern. Synthesis of pigment red 254 in selected crystal phase using ionic liquids was achieved without any ...

In a ring laser gyroscope, due to the rotation and the Sagnac effect, a phase difference between the two counter-propagating beams is generated. In this device, the higher phase difference between these two beams causes the better the interference pattern detection, and thus the sensitivity is increased. In this paper, the effect of inserting a dielectric-graphene photonic crystal inside a ring...

Quantum control in high-order-harmonic generation is considered theoretically by using a spatial distribution of static electric fields along the propagation direction of the driving field. It is shown that the trajectories of the electrons during its acceleration by the laser field in the high-harmonics-generation process can be controlled by periodically distributed static electric fields, wh...

We derive a formula for the infinitesimal phase response curve (iPRC) of a limit cycle occurring in a piecewise smooth dynamical system satisfying a transverse flow condition. Discontinuous jumps in the iPRC can occur at the boundaries separating subdomains. When the subdomain dynamics are linear, we obtain an explicit expression for the iPRC. We present examples from cell biology (Glass networ...