Hovering At A Low Altitude

Author : Dalia Ravikovitch
Publisher : W. W. Norton & Company
ISBN 13 : 9780393065244
Total Pages : 284 pages
Book Rating : 4.43/5 ( download)

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Download or read book Hovering at a Low Altitude written by Dalia Ravikovitch and published by W. W. Norton & Company. This book was released on 2009 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Ravikovitch's] song is both ancient and new, and it is unutterably poignant. --Stanley Kunitz

Author : Alan L. Mintz
Publisher : UPNE
ISBN 13 : 9781584652007
Total Pages : 308 pages
Book Rating : 4.04/5 ( download)

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Download or read book Reading Hebrew Literature written by Alan L. Mintz and published by UPNE. This book was released on 2003 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six classic texts of modern Hebrew literature viewed from a variety of critical perspectives.

Author : Luis Rodolfo García Carrillo
Publisher : Springer Science & Business Media
ISBN 13 : 144714399X
Total Pages : 191 pages
Book Rating : 4.94/5 ( download)

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Download or read book Quad Rotorcraft Control written by Luis Rodolfo García Carrillo and published by Springer Science & Business Media. This book was released on 2012-08-12 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quad Rotorcraft Control develops original control methods for the navigation and hovering flight of an autonomous mini-quad-rotor robotic helicopter. These methods use an imaging system and a combination of inertial and altitude sensors to localize and guide the movement of the unmanned aerial vehicle relative to its immediate environment. The history, classification and applications of UAVs are introduced, followed by a description of modelling techniques for quad-rotors and the experimental platform itself. A control strategy for the improvement of attitude stabilization in quad-rotors is then proposed and tested in real-time experiments. The strategy, based on the use low-cost components and with experimentally-established robustness, avoids drift in the UAV’s angular position by the addition of an internal control loop to each electronic speed controller ensuring that, during hovering flight, all four motors turn at almost the same speed. The quad-rotor’s Euler angles being very close to the origin, other sensors like GPS or image-sensing equipment can be incorporated to perform autonomous positioning or trajectory-tracking tasks. Two vision-based strategies, each designed to deal with a specific kind of mission, are introduced and separately tested. The first stabilizes the quad-rotor over a landing pad on the ground; it extracts the 3-dimensional position using homography estimation and derives translational velocity by optical flow calculation. The second combines colour-extraction and line-detection algorithms to control the quad-rotor’s 3-dimensional position and achieves forward velocity regulation during a road-following task. In order to estimate the translational-dynamical characteristics of the quad-rotor (relative position and translational velocity) as they evolve within a building or other unstructured, GPS-deprived environment, imaging, inertial and altitude sensors are combined in a state observer. The text give the reader a current view of the problems encountered in UAV control, specifically those relating to quad-rotor flying machines and it will interest researchers and graduate students working in that field. The vision-based control strategies presented help the reader to a better understanding of how an imaging system can be used to obtain the information required for performance of the hovering and navigation tasks ubiquitous in rotored UAV operation.

Author : Dennis R. Jenkins
Publisher : Government Printing Office
ISBN 13 : 9780160901102
Total Pages : 540 pages
Book Rating : 4.03/5 ( download)

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Download or read book Dressing for Altitude written by Dennis R. Jenkins and published by Government Printing Office. This book was released on 2012-08-27 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Since its earliest days, flight has been about pushing the limits of technology and, in many cases, pushing the limits of human endurance. The human body can be the limiting factor in the design of aircraft and spacecraft. Humans cannot survive unaided at high altitudes. There have been a number of books written on the subject of spacesuits, but the literature on the high-altitude pressure suits is lacking. This volume provides a high-level summary of the technological development and operational use of partial- and full-pressure suits, from the earliest models to the current high altitude, full-pressure suits used for modern aviation, as well as those that were used for launch and entry on the Space Shuttle. The goal of this work is to provide a resource on the technology for suits designed to keep humans alive at the edge of space."--NTRS Web site.

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.99/5 ( download)

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Download or read book Low-altitude Flying Training written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Maya Bejerano
Publisher : Lannan Translations Selection
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.09/5 ( download)

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Download or read book The Hymns of Job and Other Poems written by Maya Bejerano and published by Lannan Translations Selection. This book was released on 2008 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Since 1970 when she published her first poem in Masa, the literary supplement of Davar, Maya Bejerano has been a strong and distinct presence in contemporary Hebrew poetry. Like many poets of her generation - the first generation after WWII - Bejerano was born in Israel to immigrant parents. To a large extent, the work of these poets gives expression to two states of consciousness: one of existential apprehension inherited from their immigrant parents, and one of a wild sense of freedom and liberation. With refreshing candor and a thoroughly modern and original voice, Maya Bejerano represents both sides of that new consciousness." "BOA Editions, Ltd. is pleased to present the first full-length book of Maya Bejerano's poetry to appear in the United States. The Hymns of Job and Other Poems offers readers an introduction to this versatile and original poet."--BOOK JACKET.

Author : Herbert H. T. Prins
Publisher : Cambridge University Press
ISBN 13 : 1107114713
Total Pages : 491 pages
Book Rating : 4.15/5 ( download)

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Download or read book Bird Migration across the Himalayas written by Herbert H. T. Prins and published by Cambridge University Press. This book was released on 2017-04-06 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first reference to demonstrate how birds survive the high-altitude Central Asian Flyway and the threats to this unique migration.

Author : United States. Federal Aviation Administration
Publisher :
ISBN 13 :
Total Pages : 1310 pages
Book Rating : 4.38/5 ( download)

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Download or read book Federal aviation regulations written by United States. Federal Aviation Administration and published by . This book was released on 1995 with total page 1310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher : State University of New York Press
ISBN 13 : 0791477142
Total Pages : 379 pages
Book Rating : 4.44/5 ( download)

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Download or read book Poets on the Edge written by and published by State University of New York Press. This book was released on 2012-02-01 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poets on the Edge introduces four decades of Israel's most vigorous poetic voices. Selected and translated by author Tsipi Keller, the collection showcases a generous sampling of work from twenty-seven established and emerging poets, bringing many to readers of English for the first time. Thematically and stylistically innovative, the poems chart the evolution of new currents in Hebrew poetry that emerged in the late 1950s and early 1960s and, in breaking from traditional structures of line, rhyme, and meter, have become as liberated as any contemporary American verse. Writing on politics, sexual identity, skepticism, intellectualism, community, country, love, fear, and death, these poets are daring, original, and direct, and their poems are matched by the freshness and precision of Keller's translations.

Author : Des Barker
Publisher :
ISBN 13 :
Total Pages : 344 pages
Book Rating : 4.04/5 ( download)

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Download or read book Zero Error Margin written by Des Barker and published by . This book was released on 2003 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: