We studied the thermal decomposition of dimethyl carbonate (DMC, C3H6O3) in a flash vacuum pyrolysis reactor 1100–1700 K range. The reaction products and intermediates were probed by ultraviolet synchrotron radiation photoelectron photoion coincidence (PEPICO) spectrometer to record isomer-specific mass-selected threshold (ms-TPE) spectra. Reaction pathways explored using quantum chemical calcu...

Quantum correlation of two-photon states is utilized to suppress the environmental noise in imaging down single-photon level. However, size coherence area photon pairs limits applications quantum based on spatial correlations. Here, a scheme exploiting twisted with tunable spatial-correlation regions circumvent this limitation proposed. A bulk-density coincidence employed enhance signal. Specif...

In this paper coupled coincidence points of mappings satisfying a nonlinear contractive condition in the framework of partially ordered metric spaces are obtained. Our results extend the results of Harjani et al. 2011 . Moreover, an example of the main result is given. Finally, some coupled coincidence point results for mappings satisfying some contraction conditions of integral type in partial...

To extract speech from acoustic interference is a challenging problem. Previous systems based on auditory scene analysis principles deal with voiced speech, but cannot separate unvoiced speech. We propose a novel method to separate stop consonants, which contain significant unvoiced signals, based on their acoustic properties. The method employs onset as the major grouping cue; it first detects...

We develop some applications of techniques of the Lefschetz coincidence theory in control theory. The topics are existence of equilibria and their robustness, controllability and its robustness.

* Correspondence: [email protected] Department of Mathematics, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia Abstract Using the notion of compatible mappings in the setting of a partially ordered metric space, we prove the existence and uniqueness of coupled coincidence points involving a (j, ψ)-contractive condition for a mappings having the mixed g-monotone propert...

Abstract_ _ We prove a common coincidence point theorem for a non-fuzzy mapping and a pair of fuzzy mappings under a ' contraction condition on a metric space in the context of Hausdor¤ metric on the family of fuzzy sets. Further, we establish a common coincidence point theorem on a metric space with the d1 metric on fuzzy sets, which extends a number of recent results. As applications, we obta...

2014 The 03B3 decay of the first two positive parity states in 45Ti was reexamined using single 03B3-ray, 03B3-03B3 coincidence and n-03B3 coincidence techniques. E1 transition strengths down to 10-7 Weisskopf units were deduced from the experimental data, which is 30 times lower than the weakest E1 transition known in the other nuclei of the mass region 40 A 50. J. Physique 41 (1980) 239-241 M...