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Coherent motions are understood to play an important role in enhancing the momentum transport of turbulent wall bounded shear flows, but determining whether or not a coherent motion is present in a given volume of space at a particular time is still a difficult task. Although most detection schemes were developed for use within a specific region above the wall, most are ultimately used throughout the entire boundary layer. Three different probe based algorithms and three different visual detection schemes are applied to combined flow visualization and spanwise vorticity probe data taken in the near wall region and at y/delta of 0.8. Several new performance parameters have been developed, and...
The pineal gland has been a subject of interest and speculation for more than 2000 years. Greek anatomists were impressed by the ob servation that the pineal gland is an unpaired structure and they believed that it regulated the flow of thoughts. The philosopher Descartes proposed an important role for this organ in brain function. At the beginning of the 20th century experiments by several investi gators indicated that the pineal influenced sexual function and skin pigmentation and was also responsive to light signals. With the iso lation of melatonin from bovine pineal glands by Lerner and cowork ers in 1958 the modern era of pineal research was initiated. Within a few years the pathway fo...
Modern low brass instruments—trombone, tuba, and euphonium—have legions of ancestors, cousins, and descendants in over five-hundred years of history. Prominent scholar and performer Douglas Yeo provides a unique, accessible reference guide that addresses a broad range of relevant topics and brings these instruments to life with clear explanations and the most up-to-date research. Brief biographies of many path-changing individuals highlight their influence on instrument development and use. The book’s inclusive scope also recognizes the work of diverse, influential artists whose important contributions to trombone and tuba history and development have not previously been acknowledged in other literature. Extensive illustrations by Lennie Peterson provide insight into many of the entries.
"An introductory theatre text focusing on theatre practitioners and their processes. Using an accessible tone and a focused exploration of how theatre artists work, the book covers playwrights; directors; actors; designers of sets; costumes, and props; and lights, sounds, and technology; as well as the varying roles of scholars, critics, and dramaturgs." - Back cover.
pt. 1. List of patentees.--pt. 2. Index to subjects of inventions.