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Mars Flyer Rocket Propulsion Risk Assessment Kaiser Marquardt Testing
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720619741 Total Pages :36 pages Book Rating :4.6/5 (197 download)
Book Synopsis Mars Flyer Rocket Propulsion Risk Assessment Kaiser Marquardt Testing by : National Aeronautics and Space Administration (NASA)
Download or read book Mars Flyer Rocket Propulsion Risk Assessment Kaiser Marquardt Testing written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-03 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the investigation of a 10-N, bipropellant thruster, operating at -40 C, with monomethylhydrazine (MMH) and 25% nitric oxide in nitrogen tetroxide (MON-25). The thruster testing was conducted as part of a risk reduction activity for the Mars Flyer, a proposed mission to fly a miniature airplane in the Martian atmosphere. Testing was conducted using an existing thruster, designed for MMH and MON-3 propellants. The nitric oxide content of MON-3 was increased to 25%, to lower its freezing point to -55 C. The thruster was conditioned, along with the propellants, to temperature prior to hot firing. Thruster operating parameters included oxidizer-to-fuel mixture ratios of 1.6 to 2.7 and inlet pressure ranging from 689 to 2070 kPa. The test matrix consisted of many 10-second firings and several 60-, 300-, 600-, and 1200-second firings, as well as pulse testing. The thruster successfully accumulated nearly 10,000 seconds of operation without failure, at temperatures ranging from -40 C to 22 C. At nominal inlet pressures, the ignition delay was comparable to MMH/MON-3 operation. The optimal performance for the 8.9-N thruster was determined to be at a mixture ratio of 1.93 with an average specific impulse of 298 sec.Marquardt, KaiserGlenn Research CenterLIQUID ROCKET PROPELLANTS; PERFORMANCE TESTS; OXIDIZERS; NITROGEN TETROXIDE; MARS ATMOSPHERE; ROCKET ENGINES; FAILURE; ACCUMULATIONS; FLYING PERSONNEL; INLET PRESSURE; MELTING POINTS; MINIATURIZATION; MONOMETHYLHYDRAZINES; NITRIC OXIDE; SPECIFIC IMPULSE
Book Synopsis Mars Flyer Rocket Propulsion Risk Assessment Kaiser Marquardt Testing by :
Download or read book Mars Flyer Rocket Propulsion Risk Assessment Kaiser Marquardt Testing written by and published by . This book was released on 2001 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mars Flyer Rocket Propulsion Risk Assessment: ARC Testing by :
Download or read book Mars Flyer Rocket Propulsion Risk Assessment: ARC Testing written by and published by . This book was released on 2001 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparison of Mars aircraft propulsion systems by :
Download or read book Comparison of Mars aircraft propulsion systems written by and published by DIANE Publishing. This book was released on with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Overview of Propulsion Systems for a Mars Aircraft by :
Download or read book Overview of Propulsion Systems for a Mars Aircraft written by and published by . This book was released on 2001 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Facing the Heat Barrier by : T. A. Heppenheimer
Download or read book Facing the Heat Barrier written by T. A. Heppenheimer and published by . This book was released on 2006 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypersonics is the study of flight at speeds where aerodynamic heating dominates the physics of the problem. Typically this is Mach 5 and higher. Hypersonics is an engineering science with close links to supersonics and engine design. Within this field, many of the most important results have been experimental. The principal facilities have been wind tunnels and related devices, which have produced flows with speeds up to orbital velocity. Why is it important? Hypersonics has had two major applications. The first has been to provide thermal protection during atmospheric entry. Success in this enterprise has supported ballistic-missile nose cones, has returned strategic reconnaissance photos from orbit and astronauts from the Moon, and has even dropped an instrument package into the atmosphere of Jupiter. The last of these approached Jupiter at four times the speed of a lunar mission returning to Earth. Work with re-entry has advanced rapidly because of its obvious importance. The second application has involved high-speed propulsion and has sought to develop the scramjet as an advanced airbreathing ramjet. Scramjets are built to run cool and thereby to achieve near-orbital speeds. They were important during the Strategic Defense Initiative, when a set of these engines was to power the experimental X-30 as a major new launch vehicle. This effort fell short, but the X-43A, carrying a scramjet, has recently flown at Mach 9.65 by using a rocket. Atmospheric entry today is fully mature as an engineering discipline. Still, the Jupiter experience shows that work with its applications continues to reach for new achievements. Studies of scramjets, by contrast, still seek full success, in which such engines can accelerate a vehicle without the use of rockets. Hence, there is much to do in this area as well. For instance, work with computers may soon show just how good scramjets can become. NASA SP-2007-4232
Book Synopsis A Cognitive Psychology of Mass Communication by : Richard Jackson Harris
Download or read book A Cognitive Psychology of Mass Communication written by Richard Jackson Harris and published by Routledge. This book was released on 2009-05-19 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this fifth edition of A Cognitive Psychology of Mass Communication, author Richard Jackson Harris continues his examination of how our experiences with media affect the way we acquire knowledge about the world, and how this knowledge influences our attitudes and behavior. Presenting theories from psychology and communication along with reviews of the corresponding research, this text covers a wide variety of media and media issues, ranging from the commonly discussed topics – sex, violence, advertising – to lesser-studied topics, such as values, sports, and entertainment education. The fifth and fully updated edition offers: highly accessible and engaging writing contemporary references to all types of media familiar to students substantial discussion of theories and research, including interpretations of original research studies a balanced approach to covering the breadth and depth of the subject discussion of work from both psychology and media disciplines. The text is appropriate for Media Effects, Media & Society, and Psychology of Mass Media coursework, as it examines the effects of mass media on human cognitions, attitudes, and behaviors through empirical social science research; teaches students how to examine and evaluate mediated messages; and includes mass communication research, theory and analysis.
Book Synopsis First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies by : Christoph Reigber
Download or read book First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies written by Christoph Reigber and published by Springer Science & Business Media. This book was released on 2012-09-07 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1995, the German Space Agency DARA selected the CHAllenging Minisatellite Payload (CHAMP) mission for development under a special support programme for the space industry in the new states of the unified Germany, with the Principal Investigator and his home institution GFZ Potsdam being ultimately responsible for the success of all mission phases. After three years of spacecraft manufactur ing and testing, the satellite was injected successfully into its final, near circular, almost polar and low altitude (450 km) orbit from the cosmodrome Plesetsk in Russia on July 15, 2000. After a nine month commissioning period during which all spacecraft systems and instruments were checked, calibrated and validated, the satellite has been delivering an almost uninterrupted flow of science data since May 2001. Since this date, all science data have been made available to the more than 150 selected co-investigator teams around the globe through an international Announcement of Opportunity. The scientific goals of the CHAMP mission are to gain a better understanding of dynamic processes taking place in the Earth's interior and in the space near Earth. These goals can be achieved by improved observation of the Earth's gravity and magnetic fields and their time variability with high-performance on-board instru mentation and by exploring the structure of the Earth's atmosphere and ionosphere through radio occultation measurements.
Book Synopsis Information, Innovation and Impacts by : John de la Mothe
Download or read book Information, Innovation and Impacts written by John de la Mothe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information, Innovation and Impacts - a joint project between the Program of Research in International Management and Economy (PRIME) at the University of Ottawa and Statistics Canada - brings together economic, social and statistical views of the impacts of the innovative uses of information. It examines the costs as well as the benefits of rapidly expanding availability of data, of information, and of codified knowledge, and it provides suggestions for future work and research. This project fits into an on-going research program at Statistics Canada to develop indicators for science and technology (S&T) in a more coherent manner, and it fits into the research program of PRIME to better understand the dynamics of innovation in an information economy. Together, Statistics Canada and PRIME strive to tell the story of the activities in S&T systems, their interactions, and the outcomes as actors go about the generation, transmission, or mediation of knowledge, information, and of data, as part of the effective functioning of the system.
Book Synopsis Small Boats, Weak States, Dirty Money by : Martin N. Murphy
Download or read book Small Boats, Weak States, Dirty Money written by Martin N. Murphy and published by . This book was released on 2009 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many believe that pirates and other water-bound terrorists present a significant threat to international maritime security. Testing the validity of this claim, Martin N. Murphy scrutinizes recent incidents of maritime terrorism and locates the commonalities between pirates and maritime terrorists that enable them to commit their extensive crimes. Murphy's research opens up surprising sites of contact between pirates and wider criminal networks, organizations that pursue their corrupt agendas not only on sea but also on land. It is these relationships, Murphy argues, that bring about the destabilization of states and regions in which piracy occurs. Murphy's most significant revelation is the way in which maritime criminality may disguise insurgent and terrorist activity, allowing such actors greater freedom to maneuver. Although these acts currently rank as a low-level threat, priacy feeds off of political upheaval. Before they can evolve into a truly powerful and dangerous force, however, maritime terrorists and insurgents will have to overcome significant operational and technical issues. They must also capture the attention of an international audience by committing atrocities at sea that are as devastating as those committed on land.
Book Synopsis The Scars of Venus by : J.David Oriel
Download or read book The Scars of Venus written by J.David Oriel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decade of the 15th century a new and deadly disease called Morbus Gallicus, or syphilis, appeared and spread rapidly throughout Europe. The effects of syphilis were so severe that it, and those suffering from it, where regarded with horror and despair. It is difficult for the modern reader to appreciate the fog of confusion which surrounded sexually transmitted diseases in earlier times. Those suffering with these diseases were often condemned as victims of their own "sinful lust of the flesh"; a judgement attitude which hindered most of the early attempts at control and treatment. Despite this general attitude, there were some doctors who persevered in their attempts to understand the causes and discover treatments for syphilis and other sexually transmitted diseases. The Scars of Venus is illustrated with pictures of people, places, instruments and documents. It presents the historical background and achievements of the early venereologists through to the current venereologists' fight against HIV. This book will be of interest to anyone concerned with venereal diseases: doctors, nurses, counsellors, laboratory workers, medical historians, and those working in the areas of public/world health and the spread of infectious diseases.
Book Synopsis Social Protest, Violence & Terror in Nineteenth- & Twentieth-Century Europe by : Gerhard Hirschfeld
Download or read book Social Protest, Violence & Terror in Nineteenth- & Twentieth-Century Europe written by Gerhard Hirschfeld and published by Springer. This book was released on 1982-11-25 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pagan and Christian Rome by : Rodolfo Amedeo Lanciani
Download or read book Pagan and Christian Rome written by Rodolfo Amedeo Lanciani and published by . This book was released on 1892 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Social Robots: Technological, Societal and Ethical Aspects of Human-Robot Interaction by : Oliver Korn
Download or read book Social Robots: Technological, Societal and Ethical Aspects of Human-Robot Interaction written by Oliver Korn and published by Springer. This book was released on 2019-07-01 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Social robots not only work with humans in collaborative workspaces – we meet them in shopping malls and even more personal settings like health and care. Does this imply they should become more human, able to interpret and adequately respond to human emotions? Do we want them to help elderly people? Do we want them to support us when we are old ourselves? Do we want them to just clean and keep things orderly – or would we accept them helping us to go to the toilet, or even feed us if we suffer from Parkinson’s disease? The answers to these questions differ from person to person. They depend on cultural background, personal experiences – but probably most of all on the robot in question. This book covers the phenomenon of social robots from the historic roots to today’s best practices and future perspectives. To achieve this, we used a hands-on, interdisciplinary approach, incorporating findings from computer scientists, engineers, designers, psychologists, doctors, nurses, historians and many more. The book also covers a vast spectrum of applications, from collaborative industrial work over education to sales. Especially for developments with a high societal impact like robots in health and care settings, the authors discuss not only technology, design and usage but also ethical aspects. Thus this book creates both a compendium and a guideline, helping to navigate the design space for future developments in social robotics.
Download or read book 47th Bombardment Group (L) written by and published by Turner Publishing Company. This book was released on 1996 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 47th Bomb Group (L) contained the 84th, 85th, 86th, and 97th squadrons, plus Headquarters.
Book Synopsis The President's Strategic Defense Initiative by :
Download or read book The President's Strategic Defense Initiative written by and published by . This book was released on 1985 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Word Rhythm Dictionary by : Timothy Polashek
Download or read book The Word Rhythm Dictionary written by Timothy Polashek and published by Scarecrow Press. This book was released on 2014-04-18 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new kind of dictionary reflects the use of “rhythm rhymes” by rappers, poets, and songwriters of today. Users can look up words to find collections of words that have the same rhythm as the original and are useable in ways that are familiar to us in everything from vers libre poetry to the lyrics and music of Bob Dylan and hip hop groups.
