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In acoustic emission testing, the challenge is to recognize the multiple Lamb wave components in the received waveform and to interpret them in terms of source motion. This contrasts with the situation in ultrasonic testing, where the first challenge is to generate a single, well-controlled Lamb wave mode at a single frequency.
The disease was confirmed as present in the UK on 22 January 2012, on being formally identified in four sheep farms in Norfolk, Suffolk and East Sussex. [5] By 27 February 2012, the disease was reported in other counties in the south of England including the Isle of Wight, Wiltshire, West Berkshire, Gloucestershire, Hampshire and Cornwall. [ 22 ]
EDM is a more severe form of NAD. The diseases are characterized by the damage and degeneration of the central nervous system. This disease process is heritable in certain breed bloodlines, such as Quarter Horse, Appaloosa, Morgan, Lusitano, and Arabian. It is hypothesized that horses develop this disease continuum because they have a defect in ...
Due to their higher speed, the P and S waves generated by an earthquake arrive before the surface waves. However, the particle motion of surface waves is larger than that of body waves, so the surface waves tend to cause more damage. In the case of Rayleigh waves, the motion is of a rolling nature, similar to an ocean surface wave. The ...
Damage is cumulative over one's lifetime, so that permanent effects may not be evident for some time after exposure. [19] Ultraviolet radiation of wavelengths shorter than 300 nm (actinic rays) can damage the corneal epithelium. This is most commonly the result of exposure to the sun at high altitude, and in areas where shorter wavelengths are ...
Orf is a zoonotic disease, meaning humans can contract this disorder through direct contact with infected sheep and goats or with fomites carrying the orf virus. [6] It causes a purulent-appearing papule locally and generally no systemic symptoms.
This disease is the cause of both endemic and epidemic disease worldwide and is the most frequently identified intestinal parasite in the United States and Canada. [ citation needed ] An infected individual can excrete between 1 million and 1 billion cysts daily, and the infectious dose can be as low as 10 cysts.
Taken together, DAMPs can be useful therapeutic targets for various human diseases, including cancer and autoimmune diseases. [3] DAMPs can trigger re-epithelialization upon kidney injury, contributing to epithelial–mesenchymal transition, and potentially, to myofibroblast differentiation and proliferation. These discoveries suggest that ...