Leading edge erosion on a wind turbine blade from Vindeby offshore farm is characterized by X-ray tomography, and air bubbles within the top coat are observed. Similar coating systems with almost without tested R&D Test Systems style whirling arm rain tester (RET) found to have different V–N curves. In general, slope of two curves was comparable. However, absolute performance value RET differs ...

—Studies of the whirling disease epizootic in the upper Colorado River drainage have suggested that Windy Gap Reservoir is a source of the fish-infective actinospore of Myxobolus cerebralis. We divided the reservoir into four quadrants (12 zones) and conducted a core-sampling study to determine the spatial dynamics of actinospore production within the reservoir from late June to early November ...

This work is meant to investigate and control the nonlinear dynamical behaviours of a asymmetric rotating shaft system. The studied system modeled as having both quadratic cubic nonlinearities excited at primary resonance. A linear proportional-derivative controller introduced eliminate suppress lateral vibrations shaft. influences different parameters on oscillatory considered are explored. ma...

The frequent impulse collisions and wear between the ball cage pocket not only affect bearing stability but also significantly impact deterioration of service life. A comprehensive dynamic model for analyzing stability, skidding degree, ball–cage collision, distribution, rate four types is proposed. series tests whirling conducted on self-lubricating test bench using high-speed photographic tec...

The hatchery and field performance of a whirling disease resistant strain of rainbow trout (Oncorhynchus mykiss) was compared to a traditional Utah strain: Ten Sleep (TS). The resistant strain consisted of progeny from a German strain (GR) x Harrison Lake strain (HA) backcrossed with the German strain, resulting in fish that were 3⁄4 German strain x 1⁄4 Harrison Lake strain. The disease resista...

Myxobolus cerebralis, the myxosporean parasite-causing salmonid whirling disease, was first reported among rainbow trout (Oncorhynchus mykiss) in Germany in 1903. The parasite was reported for the first time in North America in 1958 among hatchery-reared trout in the eastern USA, presumably arriving with frozen trout shipments from Europe. A comparison of 18S and ITS-1 ribosomal DNA sequences w...

organized work. It is not surprising, therefore, that the active groups of the enzymes should only be capable of acting in association with a carrier of a given structure. For, orderly biological processes are unthinkable without presupposing structure, and it is therefore out of the question that any living constituent of protoplasm could consist of structureless, fluid, independently displace...