Resonance in the nonadiabatic quantum pumping of the time-dependent Josephson junction

In this work, we investigated the nonadiabatic transport properties of the one-dimensional time-dependent superconductor-normal metal-superconductor (SNS) Josephson junction biased by a current source and driven by a high-frequency-ac-gate-potential applied to the normal-metal layer. BCS superconductors are considered and treated with the time-dependent Bogoliubov-de Gennes equation. Using Floquet theory, we compute the transmission coefficients and the Wigner-Smith delay times as a function of the incident energy and find that they display resonances when one of the electron or hole Floquet wavevectors coincides with the bound quasiparticle state within the superconducting energy gap. The resonance varies with the phase difference between the two superconductors as a result of the bound quasiparticle level displacement. The supercurrent flowing through the SNS junction is dramatically enhanced by the resonances

2-[2-(4-Meth­oxy­phen­yl)-2-oxoeth­yl]malononitrile

The title compound, C12H10N2O2, was obtained unintentionally during the synthesis of 2-amino-5-(4-meth­oxy­phen­yl)furan-3-carbonitrile. In the crystal, weak inter­mol­ecular C—H⋯N and C—H⋯π inter­actions link the mol­ecules into columns propagating in [010]

Tissue Engineering of Esophagus

The incidences of esophageal diseases like atresia, tracheoesophageal fistula, esophagitis, and even carcinoma rise rapidly worldwide. Traditional therapies such as surgery, chemotherapy, or/and radiotherapy, etc. always meet problems, leading to deterioration of the patients’ life quality and sometimes the reduced survival rate. Tissue‐engineered esophagus, a novel biologic substitute with tissue architecture and bio‐functions, has been believed to be a promising replacement in the future. However, the research of esophageal tissue engineering is still at the early stage. Considerable research has been focused on the issues of developing ideal scaffolds with optimal materials and fabrication methods. The in vivo tests and clinic attempts are being progressed