The design and performance of Love-wave sensors using cross-linked poly(methyl methacrylate) waveguides of thicknesses of 0.3 to 3.2μm on LiTaO3 substrates are described. It is found that this layer-substrate combination provides sufficient waveguidance and electrical isolation of the interdigital transducers from the liquid environment to achieve low acoustic loss and distortion. In biosensing...

We sketch a derivation of abstract scattering theory from the microscopic first principles defined by Bohmian mechanics. We emphasize the importance of the flux-across-surfaces theorem for the derivation, and of randomness in the impact parameter of the initial wave function—even for an, inevitably inadequate, orthodox derivation. Dedicated to Joel Lebowitz, with love and admiration, for his 70...

A Love wave humidity sensor is developed by using a multilayer structure consisting of PVA/SiO2 layers on an ST-90°X quartz substrate. The theoretical result shows that the sensor with such a two-layer structure can achieve a higher sensitivity and a smaller loss than the structures with a single polymer layer. Comparative experiments are performed for the sensor incorporating PVA/SiO2 layers a...

Pipes are widely used in many industrial and mechanical applications and devices. Although there are many different constructions according to the specific application and device, these can show helical pattern, such as spiral pipes, wire-reinforced pipes/shells, spring-suspension, and so on. Theoretical modelling of wave propagation provides a prediction about the dynamic behavior, and it is f...

The effect of viscous liquid loading on SH-SAW devices on AlN=sapphire structure has been experimentally investigated. The sensitivity of the devices to liquid (glycerol=water mixtures) viscosity changes is measured to be approximate 8.2 10 9 m s=kg, which is only about 30% of that of commonly used quartz Love wave devices. This indicates that, when used for mass sensing in liquid, the AlN SHSA...

women’s issues are among basic issues of contemporary society which have been offered different solutions. while the first- wave feminists would insist on the gender equality, the second wave would emphasize that women differ from men. the third wave tried to hold on to both sides of the conundrum: equality and difference. iris marion young is one of the theorists of the third wave of feminism ...

Previous studies examining the response of magnetoelastic materials to shock waves have predominantly focused on applications involving pulsed power generation, with limited attention given to the actual wave propagation characteristics. This study provides detailed magnetic and mechanical measurements of magnetoelastic shock wave propagation and dispersion. Laser generated rarefacted shock wav...

We tested the hypothesis that aortic perivascular adipose tissue (PVAT) from young low-density lipoprotein receptor-deficient (LDLr(-/-)) mice promotes aortic stiffness and remodeling, which would be mediated by greater PVAT-derived IL-6 secretion. Arterial stiffness was assessed by aortic pulse wave velocity and with ex vivo intrinsic mechanical properties testing in young (4-6 mo old) wild-ty...