Hardware Architecture for Guessing Random Additive Noise Decoding Markov Order (GRAND-MO)

Journal of Signal Processing Systems - Communication channels with memory are often sensitive to burst noise, which drastically reduces the decoding performance of standard channel code decoders,...     

Common fixed point of generalized weak contractive mappings in partially ordered b-metric spaces

We prove some common fixed point results for four mappings satisfying generalized weak contractive condition in partially ordered complete b-metric spaces. Our results extend and improve several comparable results in the existing literature     

Possibility designing half-wave and full-wave molecular rectifiers by using single benzene molecule

This work focused on possibility designing half-wave and full-wave molecular rectifiers by using single and two benzene rings, respectively. The benzene rings were threaded by a magnetic flux that changes over time. The quantum interference effect was considered as the basic idea in the rectification action, the para and meta configurations were investigated. All the calculations are performed by using steady-state theoretical model, which is based on the time-dependent Hamiltonian model. The electrical conductance and the electric current are considered as DC output signals of half-wave and full-wave molecular rectifiers. The finding in this work opens up the exciting potential to use these molecular rectifiers in molecular electronics.     

On near-optimal necessary and sufficient conditions for forward-backward stochastic systems with jumps,with applications to finance

We establish necessary and sufficient conditions of near-optimality for nonlinear systems governed by forward-backward stochastic differential equations with controlled jump processes (FBSDEJs in short). The set of controls under consideration is necessarily convex. The proof of our result is based on Ekeland’s variational principle and continuity in some sense of the state and adjoint processes with respect to the control variable. We prove that under an additional hypothesis, the near-maximum condition on the Hamiltonian function is a sufficient condition for near-optimality. At the end, as an application to finance, mean-variance portfolio selection mixed with a recursive utility optimization problem is given. Mokhtar Hafay     

A High Secure Speech Transmission Using Audio Steganography and Duffing Oscillator

Wireless Personal Communications - Many steganography schemes seek to improve the transmission of important and sensitive information through insecure channels. Audio steganography exploits audio...     

Synthesis,characterization and antimicrobial activity of 5‐(arylazo)salicylaldimines and their copper(II) complexes

A new series of twelve bidentate Schiff's base ligands (HL^1–12) was synthesized via condensation of 5‐(arylazo)salicylaldehydes with aromatic amines. When the new salicylaldimine derivatives were reacted with copper(II) chloride, the neutral complexes Cu(L^1–12)₂ were obtained. The structure of the copper complexes was established from microanalyses, IR and UV spectra and thermal analyses. The results suggested that the ligands were coordinated to the metal ion in a bidentate manner with ON donor sites of the deprotonated phenolic‐OH and azomethine‐N. The composition of the complexes can be represented as CuL₂. Evaluation of antimicrobial activity for the synthesized compounds was carried out to probe their activity. The compounds were found to have weak antimicrobial activity.     

Global existence and stability of Nicholson blowflies model with harvesting and random effect

Nonlinear Dynamics - A generalized Nicholson blowflies model with harvesting or immigration and random effect is considered. We discuss the existence of positive global solution and provide the...