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| 1 | Novel azo dyes derived from 8-methyl-4-hydroxyl-2-quinolone:Synthesis,UV-vis studies and biological activity显示文摘In this study,N,N'-di-(2-methylphenyl)malonamide was synthesized and reacted with polyphosphoric acid to afford 8-methyl-4-hydroxyl-2-quinolone.Eight novel azo disperse dyes were then synthesized by linking diazotized p-substituted aniline derivatives with 8-methyl-4-hydroxyl-2-quinolone.The solvatochromism of these azo dyes in various solvents was evaluated.All the compounds were then evaluated for their antibacterial activity against four bacteria,namely.Bacillus subtilis.Micrococcus luteus, Salmonella enterica,and Pseudomonas aeruginosa.The results showed that some of these compounds have high levels of antibacterial activity. | E.O.Moradi Rufchahi H.Pouramir M.R.Yazdanbakhsh H.Yousefi M.Bagheri M.Rassa | 2013 | Chinese Chemical Letters2013，24，5： | 1 |
| 2 | Quantum speed limit time and entanglement in a non-Markovian evolution of spin qubits of coupled quantum dots显示文摘Quantum speed limit time and entanglement in a system composed of coupled quantum dots are investigated.The excess electron spin in each quantum dot constitutes the physical system(qubit).Also the spin interaction is modeled through the Heisenberg model and the spins are imposed by an external magnetic field.Taking into account the spin relaxation as a non-Markovian process,the quantum speed limit and entanglement evolution are discussed.Our findings reveal that increasing the magnetic field leads to the faster quantum evolution.In addition,the temperature increment causes the longer quantum speed limit time as well as the entanglement degradation. | M.Bagheri Harouni | 2020 | Chinese Physics B2020，29，12： | 1 |
| 3 | Thermoelectric Properties of Single Molecule Junction in Presence of Dephasing and Different Coupling Geometries显示文摘The thermoelectric properties of a benzene molecule coupled to three-dimensional metallic electrodes are examined in the presence of dephasing processes using Green function formalism in the linear response regime. The three different kind of configurations(ortho, meta and para) are taken into account for the coupling between the molecule and electrodes. Results show that the thermoelectric properties of the single molecular junction are strongly dependent on the coupling geometry. Our results predict that the thermoelectric efficiency is increased in specific geometry as a consequence of interference effects. It is found that the dephasing effects result in the reduction of the thermoelectric efficiency. | Z.Golsanamlou M.Bagheri Tagani H.Rahimpour Soleimani | 2015 | Communications in Theoretical Physics2015，，9： | 0 |
| 4 | Analysis of resonant coupling coil configurations of EV wireless charging system:a simulation study显示文摘Nowadays,internal combustion engine vehicles are considered as one of the major contributors to air pollution.To make transportation more environmentally friendly,plug-in electric vehicles(PEVs)have been proposed.However,with an increase in the number of PEVs,the drawbacks associated with the cost and size,as well as charging cables of batteries have arisen.To address these challenges,a novel technology named wireless charging system has been recently recommended.This technology rapidly evolves and becomes very attractive for charging operations of electric vehicles.Currently,wireless charging systems offer highly efficient power transfer over the distances ranging from several millimeters to several hundred millimeters.This paper is focused on analyzing electromagnetically coupled resonant wireless technique used for the charging of EVs.The resonant wireless charging system for EVs is modeled,simulated,and then examined by changing different key parameters to evaluate how transfer distance,load,and coil’s geometry,precisely number of coil’s turns,coil’s shape,and inter-turn distance,influence the efficiency of the charging process.The simulation results are analyzed and critical dimensions are discussed.It is revealed that a proper choice of the dimensions,inter-turn distance,and transfer distance between the coils can result in a significant improvement in charging efficiency.Furthermore,the influence of the transfer distance,frequency,load,as well as the number of the turns of the coil on the performance of wireless charging system is the main focus of this paper. | M.LU A.JUNUSSOV M.BAGHERI | 2020 | Frontiers in Energy2020，14，1： | 0 |
| 5 | Charge and spin-dependent thermal efficiency of polythiophene molecular junction in presence of dephasing显示文摘The charge and spin-dependent thermoelectric properties of different lengths of polythiophene in a molecular junction are investigated using the B ¨uttiker probe method within Green function formalism in linear response regime. The coupling of the molecular chain to three-dimensional ferromagnetic electrodes is described by a tight-binding model for both parallel and antiparallel spin configurations. The decrease of height of transmission probability peaks and thermoelectric coefficients are observed in the presence of the B ¨uttiker probes. The reduction is more intensive in the strong dephased chains.Results show that the spin magnetothermopower is bigger than the charge magnetothermopower due to the larger difference between the spin thermopowers with respect to the charge ones. In addition, we observed that the kind of carriers participating in the thermoelectric transport depends on the number of the thiophene rings. | Z.Golsanamlou M.Bagheri Tagani H.Rahimpour Soleimani | 2015 | Chinese Physics B2015，24，10： | 0 |
| 6 | Phonon-dependent transport through a serially coupled double quantum dot system显示文摘Using Keldysh nonequilibrium Green function formalism and mapping a many-body electron–phonon interaction onto a one body problem, the electron transport through a serially coupled double quantum dot system is analyzed. The influence of the electron–phonon interaction, temperature, detuning, and interdot tunneling on the transmission coefficient and current is studied. Our results show that the electron–phonon interaction results in the appearance of the side peaks in the transmission coefficient, whose height is strongly dependent on the phonon temperature. We have also found that the inequality of the electron–phonon interaction strength in two dots gives rise to an asymmetry in the current–voltage characteristic. In addition, the temperature difference between the phonon and electron subsystems results in the reduction of the saturated current and the destruction of the step-like behavior of the current. It is also observed that the detuning can improve the magnitude of the current by compensating the mismatch of the quantum dots energy levels induced by the electron–phonon interaction. | M.Bagheri Tagani H.Rahimpour Soleimani | 2014 | Chinese Physics B2014，23，5： | 0 |
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