Download or read book Aero propulsion Technology APT written by V. Holcombe and published by . This book was released on 2003 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aero Propulsion Technology Apt Task V Low Noise Adp Engine Definition Study written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was conducted to identify and evaluate noise reduction technologies for advanced ducted prop propulsion systems that would allow increased capacity operation and result in an economically competitive commercial transport. The study investigated the aero/acoustic/structural advancements in fan and nacelle technology required to match or exceed the fuel burned and economic benefits of a constrained diameter large Advanced Ducted Propeller (ADP) compared to an unconstrained ADP propulsion system with a noise goal of 5 to 10 EPNDB reduction relative to FAR 36 Stage 3 at each of the three measuring stations namely, takeoff (cutback), approach and sideline. A second generation ADP was selected to operate within the maximum nacelle diameter constrain of 160 deg to allow installation under the wing. The impact of fan and nacelle technologies of the second generation ADP on fuel burn and direct operating costs for a typical 3000 nm mission was evaluated through use of a large, twin engine commercial airplane simulation model. The major emphasis of this study focused on fan blade aero/acoustic and structural technology evaluations and advanced nacelle designs. Results of this study have identified the testing required to verify the interactive performance of these components, along with noise characteristics, by wind tunnel testing utilizing and advanced interaction rig.Holcombe, V.Glenn Research CenterLOW NOISE; SHROUDED PROPELLERS; AEROACOUSTICS; TURBOFAN ENGINES; WIND TUNNEL TESTS; AIRCRAFT DESIGN; PROPULSION SYSTEM CONFIGURATIONS; DUCTED FANS; PROPULSION SYSTEM PERFORMANCE; ENGINE DESIGN; NACELLES; NOISE REDUCTION; BYPASS RATIO; THRUST
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1992 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing NASA in the Apollo Era written by Arnold S. Levine and published by . This book was released on 1982 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SAM TR written by and published by . This book was released on 1970-03 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dictionary of Acronyms and Technical Abbreviations written by Jakob Vlietstra and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Dictionary covers information and communication technology (ICT), including hardware and software; information networks, including the Internet and the World Wide Web; automatic control; and ICT-related computer-aided fields. The Dictionary also lists abbreviated names of relevant organizations, conferences, symposia and workshops. This reference is important for all practitioners and users in the areas mentioned above, and those who consult or write technical material. This Second Edition contains 10,000 new entries, for a total of 33,000.
Download or read book 2019 Missile Defense Review written by Department Of Defense and published by Independently Published. This book was released on 2019-01-19 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2019 Missile Defense Review - January 2019 According to a senior administration official, a number of new technologies are highlighted in the report. The review looks at "the comprehensive environment the United States faces, and our allies and partners face. It does posture forces to be prepared for capabilities that currently exist and that we anticipate in the future." The report calls for major investments from both new technologies and existing systems. This is a very important and insightful report because many of the cost assessments for these technologies in the past, which concluded they were too expensive, are no longer applicable. Why buy a book you can download for free? We print this book so you don't have to. First you gotta find a good clean (legible) copy and make sure it's the latest version (not always easy). Some documents found on the web are missing some pages or the image quality is so poor, they are difficult to read. We look over each document carefully and replace poor quality images by going back to the original source document. We proof each document to make sure it's all there - including all changes. If you find a good copy, you could print it using a network printer you share with 100 other people (typically its either out of paper or toner). If it's just a 10-page document, no problem, but if it's 250-pages, you will need to punch 3 holes in all those pages and put it in a 3-ring binder. Takes at least an hour. It's much more cost-effective to just order the latest version from Amazon.com This book includes original commentary which is copyright material. Note that government documents are in the public domain. We print these large documents as a service so you don't have to. The books are compact, tightly-bound, full-size (8 1/2 by 11 inches), with large text and glossy covers. 4th Watch Publishing Co. is a HUBZONE SDVOSB. https: //usgovpub.com
Download or read book Dictionary of Video and Television Technology written by Keith Jack and published by Gulf Professional Publishing. This book was released on 2002-09-11 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work provides comprehensive and contemporary information on the essential concepts and terms in video and television, including coverage of test and measurement proceedures.
Download or read book In the Beginning Was Information written by Dr. Werner Gitt and published by New Leaf Publishing Group. This book was released on 2006-02-01 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Powerful evidence for the existence of a personal God! Information is the cornerstone of life, yet it is something people don't often think about. In his fascinating new book, In the Beginning Was Information, Dr. Werner Gitt helps the reader see how the very presence of information reveals a Designer: Do we take for granted the presence of information that organizes every part of the human body, from hair color to the way internal organs work? What is the origin of all our complicated data? How is it that information in our ordered universe is organized and processed? Gitt explains the necessity of information - and more importantly, the need for an Organizer and Originator of that information. The huge amount of information present in just a small amount of DNA alone refutes the possibility of a non-intelligent beginning for life. It all points to a Being who not only organizes biological data, but also cares for the creation.
Download or read book The Cambridge Aerospace Dictionary written by Bill Gunston and published by Cambridge University Press. This book was released on 2011-02-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambridge Aerospace Dictionary is an authoritative and accessible reference useful to scholars and enthusiasts alike. This dictionary is an essential tool for professionals involved in the aerospace industry and flight, and for anyone who must read and understand the technical literature of the aerospace industry and about specific air and space craft. It is also an ideal reference for engineering and physics students encountering a subject replete with technical jargon and acronyms. Bill Gunston, one of the most widely read and respected aviation writers, has added more than 5,000 new terms and acronyms to this carefully updated volume. Terms used in the dictionary reflect the diverse and international nature of the aerospace industry and include brief explanations of aerospace materials and organizations. Gunston has scrupulously avoided terms specific to manufacturers, airlines, and armed forces in an effort to encourage clear communication and understanding among professionals.
Download or read book The Future of Technology written by Tom Standage and published by John Wiley & Sons. This book was released on 2005-08-01 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the industrial revolution to the railway age, through the era of electrification, the advent of mass production, and finally to the information age, the same pattern keeps repeating itself. An exciting, vibrant phase of innovation and financial speculation is followed by a crash, after which begins a longer, more stately period during which the technology is actually deployed properly. This collection of surveys and articles from The Economist examines how far technology has come and where it is heading. Part one looks at topics such as the “greying” (maturing) of IT, the growing importance of security, the rise of outsourcing, and the challenge of complexity, all of which have more to do with implementation than innovation. Part two looks at the shift from corporate computing towards consumer technology, whereby new technologies now appear first in consumer gadgets such as mobile phones. Topics covered will include the emergence of the mobile phone as the “digital Swiss Army knife”; the rise of digital cameras, which now outsell film-based ones; the growing size and importance of the games industry and its ever-closer links with other more traditional parts of the entertainment industry; and the social impact of technologies such as text messaging, Wi-Fi, and camera phones. Part three considers which technology will lead the next great phase of technological disruption and focuses on biotechnology, energy technology, and nanotechnology.
Download or read book Selected Papers of General William E Depuy written by Richard M. Swain and published by CreateSpace. This book was released on 2013-08 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: William E. DePuy was likely the most important figure in the recovery of the United States Army from its collapse after the defeat in Vietnam. That is a rather large claim, and it suggests a precedence over a number of other distinguished officers, both his contemporaries and successors. But it is a claim that can be justified by the test of the “null hypothesis:” Could the Army that conducted the Gulf War be imagined without the actions of General DePuy and those he instructed and inspired? Clearly, it could not. There are a few officers of the period about whom one can make the same claim. To judge properly the accomplishments of General DePuy and his talented subordinates at the US Army Training and Doctrine Command (TRADOC), one must understand the sense of crises and defeat that pervaded the Army in the 1970s. By 1973, the United States had lost the war in Vietnam. Only the most optimistic or naïve observer held out hope that the Geneva Accords would provide security for the Republic of South Vietnam. The US Army was in a shambles, with discipline destroyed and the chain of command almost nonexistent. The “All Volunteer Army” was borne on a wave of permissiveness that compounded the problems of restoring discipline. Moreover, the army was ten years behind its most likely enemy in equipment development, and it had no warfighting doctrine worthy of the same. With the able assistance of the commander of the Armor Center, General Donn Starry, General DePuy wrenched the Army from self-pity and recrimination about its defeat in Vietnam into a bruising doctrinal debate that focused the Army's intellectual energies on mechanized warfare against a first-class opponent. Critics might argue correctly that that the result was incomplete, but they out not to underestimate how far the Army had to come just to begin the discussion. General DePuy also changed the way Army battalions prepared for war. He made the US Army a doctrinal force for the first time in history. Ably seconded by General Paul Gorman, DePuy led the Army into the age of the Army Training and Evaluation Program (ARTEP). The intellectual and training initiatives were joined then, with a third concern of General DePuy's TRADOC: the development of a set of equipment requirements, with a concentration of effort on a limited number, ultimately called the “Big Five.” The result was the suite of weapons that overmatched the Iraqis in Operation Desert Storm – Apache attack helicopters, M1 tanks, Bradley fighting vehicles, Patriot air defense missiles, and Black Hawk assault helicopters. General DePuy championed the recruitment of a high-quality soldiery, an effort beyond his own significant responsibilities but, even so, one he never ceased to support and forward.
Download or read book DARPA Technical Accomplishments written by Sidney G. Reed and published by . This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fox and McDonald s Introduction to Fluid Mechanics written by Robert W. Fox and published by John Wiley & Sons. This book was released on 2020-06-30 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through ten editions, Fox and McDonald's Introduction to Fluid Mechanics has helped students understand the physical concepts, basic principles, and analysis methods of fluid mechanics. This market-leading textbook provides a balanced, systematic approach to mastering critical concepts with the proven Fox-McDonald solution methodology. In-depth yet accessible chapters present governing equations, clearly state assumptions, and relate mathematical results to corresponding physical behavior. Emphasis is placed on the use of control volumes to support a practical, theoretically-inclusive problem-solving approach to the subject. Each comprehensive chapter includes numerous, easy-to-follow examples that illustrate good solution technique and explain challenging points. A broad range of carefully selected topics describe how to apply the governing equations to various problems, and explain physical concepts to enable students to model real-world fluid flow situations. Topics include flow measurement, dimensional analysis and similitude, flow in pipes, ducts, and open channels, fluid machinery, and more. To enhance student learning, the book incorporates numerous pedagogical features including chapter summaries and learning objectives, end-of-chapter problems, useful equations, and design and open-ended problems that encourage students to apply fluid mechanics principles to the design of devices and systems.
Download or read book The DARPA Model for Transformative Technologies Perspectives on the U S Defense Advanced Research Projects Agency written by William Boone Bonvillian and published by Open Book Publishers. This book was released on 2020-01-09 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have done a masterful job of charting the important story of DARPA, one of the key catalysts of technological innovation in US recent history. By plotting the development, achievements and structure of the leading world agency of this kind, this book stimulates new thinking in the field of technological innovation with bearing on how to respond to climate change, pandemics, cyber security and other global problems of our time. The DARPA Model provides a useful guide for governmental agency and policy leaders, and for anybody interested in the role of governments in technological innovation. —Dr. Kent Hughes, Woodrow Wilson International Center for Scholars This volume contains a remarkable collection of extremely insightful articles on the world’s most successful advanced technology agency. Drafted by the leading US experts on DARPA, it provides a variety of perspectives that in turn benefit from being presented together in a comprehensive volume. It reviews DARPA’s unique role in the U.S. innovation system, as well as the challenges DARPA and its clones face today. As the American model is being considered for adoption by a number of countries worldwide, this book makes a welcome and timely contribution to the policy dialogue on the role played by governments in stimulating technological innovation. — Prof. Charles Wessner, Georgetown University The U.S. Defense Advanced Research Projects Agency (DARPA) has played a remarkable role in the creation new transformative technologies, revolutionizing defense with drones and precision-guided munitions, and transforming civilian life with portable GPS receivers, voice-recognition software, self-driving cars, unmanned aerial vehicles, and, most famously, the ARPANET and its successor, the Internet. Other parts of the U.S. Government and some foreign governments have tried to apply the ‘DARPA model’ to help develop valuable new technologies. But how and why has DARPA succeeded? Which features of its operation and environment contribute to this success? And what lessons does its experience offer for other U.S. agencies and other governments that want to develop and demonstrate their own ‘transformative technologies’? This book is a remarkable collection of leading academic research on DARPA from a wide range of perspectives, combining to chart an important story from the Agency’s founding in the wake of Sputnik, to the current attempts to adapt it to use by other federal agencies. Informative and insightful, this guide is essential reading for political and policy leaders, as well as researchers and students interested in understanding the success of this agency and the lessons it offers to others.
Download or read book Theory of Wing Sections written by Ira H. Abbott and published by Courier Corporation. This book was released on 2012-04-26 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concise compilation of subsonic aerodynamic characteristics of NACA wing sections, plus description of theory. 350 pages of tables.
