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

Download or read book Hovering at a Low Altitude written by Hagit Cohen and published by . This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In the spring quarter of 1988 I became acquainted with computer graphics which opened up great visual possibilities for me. The computer enabled me to layer and integrate various photographic fragments of reality, and enhanced my ability to reveal aspects of my personality-- my fears, my desires, and my feeling of confusion between contrasting values within my life. I could now communicate on a more general level, dealing with not just personal but cultural issues such as the role of mythology in our everyday life and how we deal with all the information that we absorb in modern life."--Abstract.

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.

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.

Download or read book The Man in the Flying Lawn Chair written by George Plimpton and published by Random House Trade Paperbacks. This book was released on 2005 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: George Plimpton needed no encouragement. If there was a sport to play, a party to throw, a celebrity to amaze, a fireworks display to ignite, Plimpton was front and center hurling the pitch, popping the corks, lighting the fuse. And then, of course, writing about it with incomparable zest and style. His books made him a legend. "The Paris Review, the magazine he founded and edited, won him a throne in literary heaven. Somehow, in the midst of his self-generated cyclones, Plimpton managed to toss off dazzling essays, profiles, and "New Yorker "Talk of the Town" pieces. This delightful volume collects the very best of Plimpton's inspired brief "excursions." Whether he was escorting Hunter Thompson to the "Fear and Loathing movie premiere in New York or tracking down the California man who launched himself into the upper atmosphere with nothing but a lawn chair and a bunch of weather balloons, Plimpton had a rare knack for finding stories where no one else thought to look. Who but Plimpton would turn up in Las Vegas, notebook in hand, for the annual porn movie awards gala? Among the many gems collected here are accounts of helping Jackie Kennedy plan an unforgettable children's birthday party, the time he improvised his way through amateur night at Harlem's famed Apollo Theater, and how he managed to get himself kicked out of Exeter just weeks before graduation. The grand master of what he called "participatory journalism," George Plimpton followed his bent and his genius down the most unbelievable rabbit holes-but he always came up smiling. This exemplary, utterly captivating volume is a fitting tribute to one of the great literary lives of our time. "From the Hardcoveredition.

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.

Download or read book The Hymns of Job and Other Poems written by Maya Bejerano and published by . This book was released on 2008 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Bejerano crosses boundaries as a matter of fact, giving voice to the first female Job (perhaps not only in Hebrew, but the world over) as if this were the most natural expressive venue for a single mother in Tel Aviv of the 1990s."--Professor Yael Feldman, New York University Maya Bejerano was born in Israel in 1949. She has published ten volumes of poetry in Israel, including her collected poems, Frequencies (2005). The Hymns of Job and Other Poems marks her first full-length American edition. Translator Tsipi Keller was born in Prague, raised in Israel, and has been living in the United States since 1974.

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.

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:

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:

Download or read book Unconventional Flying Objects written by Hill, Paul R. and published by Hampton Roads Publishing. This book was released on 2014-06-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paul Hill was a well-respected NASA scientist when, in the early 1950s, he had a UFO sighting. Soon after, he built the first flying platform and was able to duplicate the UFO's tilt-to-control maneuvers. Official policy, however, prevented him from proclaiming his findings. "I was destined," says Hill, "to be as unidentified as the flying objects." For the next twenty-five years, Hill acted as an unofficial clearinghouse at NASA, collecting and analyzing sightings' reports for physical properties, propulsion possibilities, dynamics, etc. To refute claims that UFOs defy the laws of physics, he had to make "technological sense... of the unconventional object." After his retirement from NASA, Hill finally completed his remarkable analysis. This book, published posthumously, presents his findings that UFOs "obey, not defy, the laws of physics." Vindicating his own sighting and thousands of others, he proves that UFO technology is not only explainable, but attainable.

Download or read book Operating Manual written by United States. Office of Personnel Management and published by . This book was released on 1996 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Operator s Manual written by and published by . This book was released on 1988 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Code of Federal Regulations written by and published by . This book was released on 1995 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 6th China Aeronautical Science and Technology Conference written by Chinese Aeronautical Society and published by Springer Nature. This book was released on 2024-01-06 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the original peer-reviewed research papers presented at the 6th China Aeronautical Science and Technology Conference held in Wuzhen, Zhejiang Province, China, in September 2023. Topics covered include but are not limited to Navigation/Guidance and Control Technology, Aircraft Design and Overall Optimisation of Key Technologies, Aviation Testing Technology, Airborne Systems/Electromechanical Technology, Structural Design, Aerodynamics and Flight Mechanics, Advanced Aviation Materials and Manufacturing Technology, Advanced Aviation Propulsion Technology, and Civil Aviation Transportation. The papers presented here share the latest findings in aviation science and technology, making the book a valuable resource for researchers, engineers and students in related fields.

Download or read book A Dress of Fire written by Dalia Ravikovitch and published by . This book was released on 1978 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Perceptual Factors in Low Altitude Flight written by R. N. Haber and published by . This book was released on 1984 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pilot's number one priority when flying low and fast is avoiding the ground. The ground gives no margin for error. Survival and successful performance requires the pilot's full understanding of the interactions of mission task demands, flight aerodynamics, usefulness of available visual information, and allocation of attention. This paper summarizes what is known about these factors. The following topics are covered: the basic aerodynamic performance characteristics of concern during low altitude flight; what aspects of the terrain and instrumentation provide correct information about ground clearance and terrain avoidance; what flying low and fast requires of perception and attention; and how the interaction of mission taks demands with the limitations imposed by the physics of the aerodynamics restrict the conditions of attending and perceiving. (Author).