833 research outputs found
Precast Concrete Elements for Accelerated Bridge Construction Final Report, Volume 1-1. Laboratory Testing of Precast Substructure Components: Boone County Bridge: TR-561, January 2009
No full textIn July 2006, construction began on an accelerated bridge project in Boone County, Iowa that was composed of precast substructure elements and an innovative, precast deck panel system. The superstructure system consisted of full-depth deck panels that were
prestressed in the transverse direction, and after installation on the prestressed concrete girders, post-tensioned in the longitudinal direction. Prior to construction, laboratory tests were completed on the precast abutment and pier cap elements. The substructure testing was to determine the punching shear strength of the elements. Post-tensioning testing and verification of the precast deck system was performed in the field. The forces in the tendons provided by the contractor were verified and losses due to the post-tensioning operation were measured. The stress (strain) distribution in the deck panels due to the post-tensioning was also measured and analyzed. The entire construction process for this bridge system was documented. Representatives from the Boone County Engineers Office, the prime contractor, precast fabricator, and researchers from Iowa State University provided feedback and suggestions for improving the constructability of this design
Edna Boone
No full textInscribed on back: \u27Edna Boone - 1994 AAUW Conference, Regional - Gulfcoast MS\u27https://egrove.olemiss.edu/lwv_photo/1071/thumbnail.jp
Binaural Model-Based Speech Intelligibility Enhancement and Assessment in Hearing Aids
No full textThe enhancement of speech intelligibility in noise is still the main subject in hearing aid research. Based on the advanced results obtained with the hearing glasses, in the present research the speech intelligibility is even further improved by the application of binaural post-filters. The functionalities of these filters are related to the principles of the auditory scene analysis. A statistical analysis of binaural cues in noise at the output of different hearing aids, the utilization of a Bayesian classifier in the source separation process and an evolutionary optimization against binaural models of speech intelligibility provides a comprehensive understanding for the utilization of binaural post-filters in adverse environments. As the listening ease and a fair amount of speech quality are mandatory in speech enhancement, tradeoffs between speech intelligibility and quality were studied in terms of the preservation of natural binaural cues and the suppression of musical noise.Imaging Science and TechnologyApplied Science
Highly directive endfire loudspeaker array
No full textA loudspeaker system with an endfire array of three or more loudspeakers (Z n, n = 3, 4,..N) arranged on a line. The system has a set of filters (Fn, n = 3, 4,..N), each loudspeaker (Zn) being connected to one corresponding filter (Fn). The filters (Fn) are super resolution beamforming filters such as to provide the endfire array with a pre- designed directivity index (DI) and a pre-designed noise sensitivity (NS).Applied Science
Baffle board
No full textThe invention relates; to a baffle board (1) for a sound source, comprising a standing wall (2) with a lamellar array (3) placed on the wall, wherein the lamellae (4, 5, 6, 7) are oriented horizontally and wherein the lamellar array is permeable to light, air and sound.Applied Science
Design and development of a synthetic acoustic antenna for highly directional sound measurements
No full textDesign and development of an acoustic microphone array for sound measurements outdoors, with applications in industrial noise and traffic noise. The microphone array has a flexible length of 10 to 76 m and covers the octave band from 125 to 1000 Hz (later extended to 2000 Hz). The angular resolution is 1.5 degrees.Applied Science
Larry Boone
No full textThis 1965 photograph shows Larry Boone and was sent to Hubert and Leona Hayes during the 17th Mountain Youth Jamboree. Founder and director of the Mountain Youth Jamboree, Hubert H. Hayes (1901-1964) auditioned and directed youth to perform in folk dance, music, and folk and ballad singing. The jamboree was held in the Asheville City Auditorium (now known as Thomas Wolfe Auditorium) from 1948 to 1973, and Hayes’ wife, Leona Trantham Hayes (1913-1989) continued to direct the program after his death in 1964. Hubert Hayes was an author, playwright, and alumni of Duke University
Binaural CASA algorithm for speech source localization: Advancements in noisy and reverberant situations
No full textIn this thesis a binaural CASA localization algorithm is developed for the implementation in a binaural hearing aid with downstream speech enhancement. Two binaural CASA localization algorithms, based on the Albani model, are proposed to enhance the localization performance in noisy and reverberant acoustic environments. The Albani model is extended with a zero-lag interaural coherence (IC) time window pre-selection, detection of multiple sources per time-window, coincidence detection between interaural level and time differences (ILD and ITD) and a lagged time window comparison, in the proposed extended Albani algorithm. A further addition to the proposed extended Albani algorithm with a binaural cue selector based on an inhibition process, is proposed in the extended Albani algorithm with cue selection by inhibition. Performed simulations show that the extended Albani algorithm performs the best in noisy situations up to a SNR level of -12 dB and the extended Albani algorithm with cue selection by inhibition performs the best in reverberant situations up to a reverberation time of 2.0 s. These proposed localization algorithms show a better performance than the present known CASA methods in both noise and reverberation.Laboratory for Acoustical Imaging and Sound ControlImaging Science & TechnologyApplied Science
Daniel Boone: An American Life
No full textThe embodiment of the American hero, the man of action, the pathfinder, Daniel Boone represents the great adventure of his age—the westward movement of the American people. Daniel Boone: An American Life brings together over thirty years of research in an extraordinary biography of the quintessential pioneer. Based on primary sources, the book depicts Boone through the eyes of those who knew him and within the historical contexts of his eighty-six years. The story of Daniel Boone offers new insights into the turbulent birth and growth of the nation and demonstrates why the frontier forms such a significant part of the American experience.
Michael A. Lofaro is Lindsay Young Professor of American and Cultural Studies and American literature at the University of Tennessee. A recognized authority on the early frontier and importance of frontier heroes such as Boone and Crockett in American life, he is the author or editor of twelve books, an online database, and over seventy-five articles.
Lofaro’s work solidifies Daniel Boone both as man and American icon. --Choice
Lofaro’s compact biography of Daniel Boone gives us that American icon all bone and sinew and without a trace of myth. It’s a worthy addition to the literature of Manifest Destiny. --Washington Times
Well researched and well written. . . . Does much to bring this legendary figure to life. --Avery Journal-Times
This is the best recent biography of Boone. Carefully documented with attractive illustrations, a detailed bibliography and even a partial genealogy of the Boone family, it is recommended to all who have an interest in the history of our state. --Bowling Green Daily News
A book any serious early Americanist should buy for a personal collection or order for the library. It\u27s readable, entertaining, full of useful and fascinating information, and short. --East-Central Intelligencer
Lofaro uses 30 years of research to realistically portray the master woodsman, a natural leader who was respected even by Native Americans, as he helped guide settlers and \u27blazed trails\u27 through the thick and wild undergrowth of Virginia, Kentucky, and other lands. --Kentucky Monthly
Distills the essence of the man, showing the historical pattern that serves as the basis for Boone’s ambivalence toward civilization and, in so doing, illustrating the impact of the American Revolution on the Kentucky frontier. . . . A solid first book on Boone for both students and general readers. --Library Journal
Lofaro has written the most readable, succinct, and useable biography about Daniel Boone. . . . A pleasure to read. --Missouri Historical Review
Lofaro carefully sifts through the facts and stories to draw a detailed picture of the Kentucky pioneer. . . . A great read. --New York Sun
Lofaro has skillfully and authoritatively mapped the roots and routes of this wilderness wanderer who could not control his ‘itching foot.’ . . . Striding through battles and bloodshed, Boone breathes and lives in this work, lightened with humorous anecdotes and descriptions of frontier customs and traditions. Lofaro’s exhaustive research is evident on every page. --Publishers Weekly
Lofaro\u27s accessible and quintessentially decent survivor, a Boone who lived among violently discordant worldviews yet charted a humane, middle way between them, deserves serious consideration. --Register of the Kentucky Historical Society
An excellent factual narrative that is well-written, every bit as interesting and exciting as the tall tales, and with just enough references to the alternative legendary accounts to keep the reader grounded in facts. --Richmond Times-Dispatch
Discredits some present-day assumptions about the life of the famous ‘Long Hunter,’ leaving in their place a more nuanced impression of Boone that surpasses the one-dimensional myths and lending complexity to the image of a frontier hero and the dynamic era in which he lived. --Union County Advocate
Shot through with impressive scholarship that takes Boone, as much as possible, from myth and tall tales (and television-inspired error) and puts him into realistic historical perspective. --Times of Acadiana
Concise and readable, Lofaro’s book seeks to escort Boone out of the realm of folklore and legend and seat him in the American pantheon next to his contemporary, George Washington. --Virginia Quarterly Review
Boone was one of the early nation’s most influential figures. Lofaro’s highly readable and lively biography does this frontier hero justice and does not shirk on providing historical context. --Ellen Eslinger, DePaul University
Boone the trailblazer, patriot, land speculator, politician, and Indian fighter, are fairly represented in the important American portrait. --Journal of the West
Full of artfully woven vignettes, stories, and anecdotes. --Ohio Valley History
A personable, touching literary portrait of the famed yet enigmatic explorer. --Profile
This brief and balanced book effectively distills what we know about Boone\u27s life story into a crisply paced narrative. --Journal of Southern History
A good read. . . . The story of Daniel Boone, full also of soldiering, hunting and exploring, has been told before; and maybe each time it gets a little better, and even a little more accurate. --Edmonson News
Piecing together the truth from second- and third-person reports is not an easy task, and no original Boone autobiography and few firsthand interviews are in existence. -- Andrea Watkins, H-Net Reviewhttps://uknowledge.uky.edu/upk_united_states_history/1156/thumbnail.jp
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