Download or read book Optical Analysis of Impact Features in Aerogel From the Orbital Debris Collection Experiment on the MIR Station written by and published by . This book was released on 1999 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biobased Aerogels written by Sabu Thomas and published by Royal Society of Chemistry. This book was released on 2018-08-23 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerogels have been in use for over 80 years and have been utilised in a wide variety of applications, in particular, there has been growing use of insulating nanoporous materials in the aerospace industry. Recent awareness of the environmental implications of materials has driven researchers to develop new green materials, with aerogels being developed using biobased constituents, such as polysaccharides and proteins. Recently, biobased components, such as cellulose nanocrystals, have replaced synthetic counterparts in the production of nanoporous materials. Biobased Aerogels is the first book to cover aerogel research from a green perspective, using commentary and analysis from leading researchers working in the field. Aerogels based on polysaccharides and proteins, their preparation and characterisation will be covered in detail, with further discussion highlighting properties such as surface morphology, shape recovery, mechanical properties and adsorption capacity. This insightful and timely publication will provide essential reading for those researchers and industrialists working within the green chemistry field.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2000 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dust in the Solar System and Other Planetary Systems written by S.F. Green and published by Elsevier. This book was released on 2002-12-10 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the last joint IAU and COSPAR Colloquium in Gainesville in 1995, there have been dramatic changes in the field resulting from in-situ space experiments, Earth orbiting satellites and ground based observations. The brightest comet since the early years of the twentieth century, comet Hale-Bopp, appeared, giving an invaluable opportunity to see in action one great source of interplanetary dust. Similarly, the Leonid meteor shower has been at its most active since 1966, producing spectacular displays of meteors and allowing for an array of observational techniques, not available in 1966 to be used, while theory has also been refined to a level where very accurate predictions of the timing of meteor storms has become possible. Prior to the meeting a total eclipse of the Sun in South West England and North Europe was observed, traditionally a good opportunity to observe the Zodiacal cloud. The knowledge of the Near-Earth Asteroid population has also increased dramatically, with the increased study arising from the heightened awareness of the danger to Earth from such bodies. Extrasolar planets have been discovered since the last meeting and it is recognised that interplanetary dust in other Planetary Systems can now be studied. Since much of the dust observed in such systems is at a distance of order 100 AU from the star, this brings into focus the production of dust in the Edgeworth-Kuiper belt of our own system. Recent years have seen a recognition of the importance of dust originating outside our own system, that is now present in the near-Earth environment. As is always the case when great strides take place observationally, much theoretical work follows, and the same is true in this instance. While data about the planetary medium from Venus to Jupiter was beginning to be available at the meeting in 1995, the data from both Galileo and Ulysses have now been more fully analysed, with a corresponding increase in our knowledge. This book reflects the thematic approach adopted at the meeting, with a flow outwards (from meteors in the atmosphere, through zodiacal dust observation and interplanetary dust, to extra solar planetary systems) and returning (via the Edgeworth-Kuiper belt and comets) to the Earth, with laboratory studies of physical and chemical processes and the study of extra-terrestrial samples.
Download or read book Aerospace Materials Handbook written by Sam Zhang and published by CRC Press. This book was released on 2016-04-19 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether an airplane or a space shuttle, a flying machine requires advanced materials to provide a strong, lightweight body and a powerful engine that functions at high temperature. The Aerospace Materials Handbook examines these materials, covering traditional superalloys as well as more recently developed light alloys. Capturing state-of-the-art d
Download or read book Space Debris written by and published by . This book was released on 2001 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Debris 2000 written by Joerg Bendisch and published by . This book was released on 2001 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: In light of increasing and increasingly serious collisions of debris with the Space Shuttle, the 29 papers look at measuring and modelling space debris and meteoroids; risk analysis and protection; and mitigation measures, space debris handbooks, and standards. The topics include space-based observations of orbital debris, numerical and experimental studies of the shaped charge for assessing space debris, and self-induced collision hazard in high and moderate inclination satellite constellations. There is no index. c. Book News Inc.
Download or read book Space Debris written by COSPAR. Scientific Commission B. B0.1-PEDAS1 Symposium and published by . This book was released on 2001 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protection of Materials and Structures from Space Environment written by Jacob I. Kleiman and published by AIP Conference Proceedings / M. This book was released on 2009-01-15 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference proceedings are discussing the latest developments in the area of the effects of the space environment on materials and structures and the ways to prevent and/or reduce them. The effects of various space environment factors like atomic oxygen, vacuum ultraviolet radiation, charging, micrometeoroids, meteoroid showers, etc. on materials and structures in various space conditions are discussed. In addition the ways to prevent these effects or reduce them through protection by coatings or modification of affected surfaces are considered in the book. The discussions on development of predictive models of material erosion that will allow the materials engineers and designers of future spacecraft to evaluate materials' behavior is continued from the past meetings.
Download or read book Scientific Exploration Planetary Protection Active Experiments and Dusty Plasmas written by J.-P. Lebreton and published by . This book was released on 2004 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Debris written by Walter Flury and published by . This book was released on 2004 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microscopy and Analysis written by and published by . This book was released on 2000 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book LPI Technical Report written by and published by . This book was released on 1994 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Orbital Debris A Chronology written by David S. F. Portree and published by . This book was released on 1999 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 37-year (1961-1998) history of orbital debris concerns. Tracks orbital debris hazard creation, research, observation, experimentation, management, mitigation, protection, and policy. Includes debris-producing, events; U.N. orbital debris treaties, Space Shuttle and space station orbital debris issues; ASAT tests; milestones in theory and modeling; uncontrolled reentries; detection system development; shielding development; geosynchronous debris issues, including reboost policies: returned surfaces studies, seminar papers reports, conferences, and studies; the increasing effect of space activities on astronomy; and growing international awareness of the near-Earth environment.
Download or read book Orbital Debris Mitigation Techniques written by American Institute of Aeronautics and Astronautics. Technical Committee on the Legal Aspects of Aeronautics and Astronautics and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 1992 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This AIAA special report addresses the minimization of the orbital debris hazard from an interdisciplinary perspective. It reviews a broad range of existing and proposed debris mitigation techniques and presents the results of an AIAA survey of industry and government. It discusses a number of important economic issues associated with orbital debris and provides a first-order economic assessment of the mitigation techniques. Finally, the report describes the existing regulatory framework and addresses several options for implementing those techniques, both nationally and internationally.
Download or read book Hypervelocity Impact Analysis of International Space Station Whipple and Enhanced Stuffed Whipple Shields written by Michael E. Kalinski and published by . This book was released on 2004-12 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Space Station (ISS) must be able to withstand the hypervelocity impacts of micrometeoroids and orbital debris that strike its many surfaces. In order to design and implement shielding which will prevent hull penetration or other operational losses, NASA must first model the orbital debris and micrometeoroid environment. Based upon this environment, special multi-stage shields called Whipple and Enhanced Stuffed Whipple Shields are developed and implemented to protect the ISS surfaces. Ballistic limit curves that establish shield failure criteria are determined via ground testing. These curves are functions of material strength, shield spacing, projectile size, shape and density, as well as a number of other variables. The combination of debris models and ballistic limit equations allows NASA to model risk to the ISS using a hydrocode called BUMPER. This thesis modifies and refines existing ballistic limit equations for U.S. Laboratory Module shields to account for the effects of the projectile (debris/ micro-meteoroid) densities. Using these refined ballistic limit equations this thesis also examines alternative shielding materials and configurations to optimize shield design for minimum mass and maximum stopping potential, proposing alternate shield designs for future NASA ground testing. A final goal of this thesis is to provide the Department of Defense a background in satellite shield theory and design in order to improve protection against micrometeoroid and orbital debris impacts on future space-based national systems.
