The relation between arterial function indices, such as pulse wave velocity and augmentation index with parameters derived from input impedance analysis, is still incompletely understood. Carotid pressure, central flow waveforms, and pulse wave velocity were noninvasively acquired in 2026 apparently healthy, middle-aged subjects (1052 women and 974 men) 35 to 55 years old at inclusion. Input an...

The present paper concerns with the effect of initial stress on the propagation of plane waves in a rotating transversely isotropic medium in the context of thermoelasticity theory of GN theory of type-II and III. After solving the governing equations, three waves propagating in the medium are obtained. The fastest among them is a quasi-longitudinal wave. The slowest of them is a thermal wave. ...

A considerable amount of energy is released in the form of shock wave from explosive charge detonation. Shock wave energy is responsible for the creation of crushing and fracture zone around the blast hole. The rest of the shock wave energy is transferred to rock mass as ground vibration. Ground vibration is conveyed to the adjacent structures by body and surface waves. Geological structures li...

A low-cost and portable vector network analyzer (VNA) which covered operating frequency between 1MHz to 3GHz is used for vector reflection coefficient and standing wave ratio (swr) of the various microstrip antennas. This paper presents measurements of various ultra wideband (uwb) microstrip antennas for applications in biomedical field. Selection of antenna is an important key for detection of...

Previous studies have demonstrated the existence of optimization criteria in the design and development of mammalians cardiovascular systems. Similarities in mammalian arterial wave reflection suggest there are certain design criteria for the optimization of arterial wave dynamics. Inspired by these natural optimization criteria, we investigated the feasibility of optimizing the aortic waves by...

Sierra, J.P., Dowding, D.D., Persetto, V., Oliveira, T.A.C., Gironella, X., Mösso, C. and and Mestres, M., 2011. Wave reflection, transmission and spectral changes at permeable low-crested structures. Journal of Coastal Research, SI 64 (Proceedings of the 11th International Coastal Symposium), . Szczecin, Poland, ISSN 0749-0208 Physical model tests were carried out in order to improve the under...

To the Editor: The review—“Brachial vs. Central Systolic Pressure and Pulse Wave Transmission Indicators: A Critical Analysis”—by Dr Izzo1 provided a broad overview of physiology and clinical consequences of pulse wave transmission in the human arterial system. We contend that a “critical analysis” of literature in this field should include consideration of all plausible evidence on the physiol...