Exploring superconductors which can possess a pairing mechanism other than the BCS predicted $s$ wave have continually attracted considerable interest. Superconductors with low-lying phonons may exhibit unconventional superconductivity as coupling of electrons these potentially affect nature superconducting ground state, resulting in strongly coupled superconductivity. In this work, by using ma...

A hybrid method to model the shear wave (SH) scattering from 2D fractures embedded in a heterogeneous medium is developed by coupling Boundary Element Method (BEM) and Finite Different Method (FDM) in the frequency domain. FDM is used to propagate an SH wave from a source through heterogeneities to localized homogeneous domains where fractures are embedded within artificial boundaries. Accordin...

The acoustoelastic technique for the nondestructive evaluation of stress is based on the stress-induced changes in the speed of wave propagation. In the application of acoustoelasticity. three different approaches have been adopted. For the sake of discussion. we will consider the case of a plane state of stress in an initially isotropic material. The most common technique uses shear waves prop...

We analyzed broadband and low-frequency events recorded on Mars made the first detection of horizontally polarized shear wave reflections, which help constrain crustal structure at NASA's InSight lander site. Coherent signals from five well-recorded marsquakes appear to be independent focal depth are consistent with SH-wave reflections off topmost interface (8 ± 2 km). This phase confirms exist...

Abstract In this paper, the geometrical effects of shallow twin lined tunnels with different cross sections are investigated to obtain anti-plane seismic ground motion under vertical/horizontal incident plane SH waves. A model long two-dimensional is established and embedded in a homogeneous linear elastic half-plane by an applied numerical time-domain boundary element approach. addition brief ...

Sudden stratospheric warmings (SSWs) could act as an important mediator in the vertical coupling of atmospheric regions and dramatic variations mesosphere lower thermosphere (MLT) response to SSWs have been documented. However, due rare occurrences, Southern Hemisphere (SH) their impacts on MLT dynamics are not well understood. This study presents analysis winds at ?80–98 km altitudes measured ...

In this paper, a two-parameter discrete Gaussian beam summation is described and then applied to SH seismic waves in a layer over a half space. For this case the exact solution for the wide-angle reflection and head wave is known by the summation of plane waves or from the modified-Cagniard method. Using Gaussian beam summations over a single angle parameter, the wide-angle reflection and head ...

Abstract. In this paper, a two-parameter discrete Gaussian beam summation is described and then applied to SH seismic waves in a layer over a half space. For this case the exact solution for the wide-angle reflection and head wave is known by the summation of plane waves or from the modified-Cagniard method. Using Gaussian beam summations over a single angle parameter, the wide-angle reflection...

An electronic nanoswitch is described based on the conformational change of the DNA sequence in the presence of stabilizing ligands. The new electrochemical biosensor was prepared by modifying a screen-printed graphite electrode (SPE) with functionalized SiO2 nanoparticles [(SiO2-N-propylpiperazine-N-(2-mercaptopropane-1-one) (SiO2@NPPNSH)] and Au nanoparticles (AuNPs). These nanoparticles are ...