Technical Abstract Bulletin
Author :
Publisher :
Page : 828 pages
File Size : 27,71 MB
Release :
Category : Science
ISBN :
Author :
Publisher :
Page : 828 pages
File Size : 27,71 MB
Release :
Category : Science
ISBN :
Author : Jeremy R. Kinney
Publisher : Government Printing Office
Page : 318 pages
File Size : 42,32 MB
Release : 2018-02-15
Category : Science
ISBN : 9781626830370
The NACA and aircraft propulsion, 1915-1958 -- NASA gets to work, 1958-1975 -- The shift toward commercial aviation, 1966-1975 -- The quest for propulsive efficiency, 1976-1989 -- Propulsion control enters the computer era, 1976-1998 -- Transiting to a new century, 1990-2008 -- Toward the future
Author : Theo W. Knacke
Publisher :
Page : 524 pages
File Size : 34,81 MB
Release : 1992
Category : Sports & Recreation
ISBN :
The purpose of this manual is to provide recovery system engineers in government and industry with tools to evaluate, analyze, select, and design parachute recovery systems. These systems range from simple, one-parachute assemblies to multiple-parachute systems, and may include equipment for impact attenuation, flotation, location, retrieval, and disposition. All system aspects are discussed, including the need for parachute recovery, the selection of the most suitable recovery system concept, concept analysis, parachute performance, force and stress analysis, material selection, parachute assembly and component design, and manufacturing. Experienced recovery system engineers will find this publication useful as a technical reference book; recent college graduates will find it useful as a textbook for learning about parachutes and parachute recovery systems; and technicians with extensive practical experience will find it useful as an engineering textbook that includes a chapter on parachute- related aerodynamics. In this manual, emphasis is placed on aiding government employees in evaluating and supervising the design and application of parachute systems. The parachute recovery system uses aerodynamic drag to decelerate people and equipment moving in air from a higher velocity to a lower velocity and to a safe landing. This lower velocity is known as rate of descent, landing velocity, or impact velocity, and is determined by the following requirements: (1) landing personnel uninjured and ready for action, (2) landing equipment and air vehicles undamaged and ready for use or refurbishment, and (3) impacting ordnance at a preselected angle and velocity.
Author : United States. Bureau of Air Commerce
Publisher :
Page : 54 pages
File Size : 46,59 MB
Release : 1927
Category : Aeronautics
ISBN :
Author : Peter O. K. Krehl
Publisher : Springer Science & Business Media
Page : 1298 pages
File Size : 40,83 MB
Release : 2008-09-24
Category : Science
ISBN : 3540304215
This unique and encyclopedic reference work describes the evolution of the physics of modern shock wave and detonation from the earlier and classical percussion. The history of this complex process is first reviewed in a general survey. Subsequently, the subject is treated in more detail and the book is richly illustrated in the form of a picture gallery. This book is ideal for everyone professionally interested in shock wave phenomena.
Author : Christos S. Zerefos
Publisher : Springer Science & Business Media
Page : 360 pages
File Size : 10,49 MB
Release : 2013-06-29
Category : Science
ISBN : 3662033755
Following the rapid developments in the UV-B measurement techniques and the rapidly growing research in the field in the late 80's and early 90's, we organized a large gathering of distinguished experts in a NATO Advanced Study Institute, held in Halkidiki, Greece on October, 2-11. 1995. The Institute was organized so as to include state of the art lectures on most aspects of solar ultraviolet radiation and its effects. This was achieved by extended lectures and discussions given in five sessions by 27 lecturers and a demonstration of filed measurements and calibration techniques at the end of the Institute. The ASI began with the sun and fundamentals on solar radiative emissions and their variability in time and continued with the interaction of solar Ultraviolet with the atmosphere through the complex scattering processes and photochemical reactions involved. Particular emphasis was given to changes in atmospheric composition imposed by different manifestations of the solar activity cycle. as well as on the modelling of radiative transfer through the atmosphere and the ocean under variable environmental conditions. Overviews on the ozone issue. its monitoring and variability were extensively discussed with emphasis on the observed acceleration of ozone decline in the early 90's. This acceleration had as a consequence, significant increases in UV-B radiation observed at a few world-wide distributed stations.
Author : Deborah G. Douglas
Publisher : University Press of Kentucky
Page : 376 pages
File Size : 27,5 MB
Release : 2004
Category : History
ISBN : 9780813126258
Kentucky is most commonly associated with horses, tobacco fields, bourbon, and coal mines. There is much more to the state, though, than stories of feuding families and Colonel Sanders’ famous fried chicken. Kentucky has a rich and often compelling history, and James C. Klotter and Freda C. Klotter introduce readers to an exciting story that spans 12,000 years, looking at the lives of Kentuckians from Native Americans to astronauts. The Klotters examine all aspects of the state’s history—its geography, government, social life, cultural achievements, education, and economy. A Concise History of Kentucky recounts the events of the deadly frontier wars of the state’s early history, the divisive Civil War, and the shocking assassination of a governor in 1900. The book tells of Kentucky’s leaders from Daniel Boone and Henry Clay to Abraham Lincoln, Mary Breckinridge, and Muhammad Ali. The authors also highlight the lives of Kentuckians, both famous and ordinary, to give a voice to history. The Klotters explore Kentuckians’ accomplishments in government, medicine, politics, and the arts. They describe the writing and music that flowered across the state, and they profile the individuals who worked to secure equal rights for women and African Americans. The book explains what it was like to work in the coal mines and explains the daily routine on a nineteenth-century farm. The authors bring Kentucky’s story to the twenty-first century and talk about the state’s modern economy, where auto manufacturing jobs are replacing traditional agricultural work. A collaboration of the state historian and an experienced educator, A Concise History of Kentucky is the best single resource for Kentuckians new and old who want to learn more about the past, present, and future of the Bluegrass State.
Author : Manjunath.R
Publisher : Manjunath.R
Page : 2658 pages
File Size : 27,84 MB
Release : 2021-07-03
Category : Antiques & Collectibles
ISBN :
This book takes readers back and forth through time and makes the past accessible to all families, students and the general reader and is an unprecedented collection of a list of events in chronological order and a wealth of informative knowledge about the rise and fall of empires, major scientific breakthroughs, groundbreaking inventions, and monumental moments about everything that has ever happened.
Author : E. Torenbeek
Publisher : Springer Science & Business Media
Page : 607 pages
File Size : 19,66 MB
Release : 2013-06-29
Category : Technology & Engineering
ISBN : 9401732027
Since the education of aeronautical engineers at Delft University of Technology started in 1940 under tae inspiring leadership of Professor H.J. van der Maas, much emphasis has been placed on the design of aircraft as part of the student's curriculum. Not only is aircraft design an optional subject for thesis work, but every aeronautical student has to carry out a preliminary airplane design in the course of his study. The main purpose of this preliminary design work is to enable the student to synthesize the knowledge ob tained separately in courses on aerodynamics, aircraft performances, stability and con trol, aircraft structures, etc. The student's exercises in preliminary design have been directed through the years by a number of staff members of the Department of Aerospace Engineering in Delft. The author of this book, Mr. E. Torenbeek, has made a large contribution to this part of the study programme for many years. Not only has he acquired vast experience in teaching airplane design at university level, but he has also been deeply involved in design-oriented re search, e.g. developing rational design methods and systematizing design information. I am very pleased that this wealth of experience, methods and data is now presented in this book.
Author : Timothy M. Laur
Publisher : Berkley Trade
Page : 0 pages
File Size : 34,69 MB
Release : 1998-07
Category : Military weapons
ISBN : 9780425164372
An accessible encyclopedia of military weapons represents a collaboration with The Army, Navy, and Air Force Times, and covers each weapon system, its evolution, development, and combat experience.