Royal College of Surgeons of England
105
105
Apr 7, 2016
04/16
by
Mohn, Henrik, 1835-1916; Fearnley, Carl Frederik, 1818-1890; Royal College of Surgeons of England
texts
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'Univer[s]itets-program for første semester'
Topic: Meteoroids
Royal College of Surgeons of England
71
71
Apr 7, 2016
04/16
by
Fearnley, Carl Frederik, 1818-1890; Mohn, Henrik, 1835-1916; Royal College of Surgeons of England
texts
eye 71
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Caption title
Topic: Meteoroids
76
76
Mar 21, 2019
03/19
by
Whiston, William, 1667-1752
texts
eye 76
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78 pages ; (8vo)
Topics: Meteoroids, Meteors
148
148
Sep 26, 2016
09/16
by
Hancock, Blith
texts
eye 148
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ESTC
Topics: Meteoroids, Comets
182
182
May 9, 2019
05/19
by
Chambers, George F. (George Frederick), 1841-1915
texts
eye 182
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xiii pages, 1 leaf, 256 pages including diagrams, tables, XXVII plate (including frontispiece) ; 23 cm
Topics: Meteoroids, Comets
Classification of meteoroids according to density and beginning height, and meteor stream search
Topics: NASA Technical Reports Server (NTRS), CLASSIFICATIONS, DENSITY (MASS/VOLUME), METEOROIDS, AQUARID...
Click here to view the University of Florida catalog record
Topics: Meteors, Meteoroids
92
92
Apr 19, 2010
04/10
by
Branley, Franklyn Mansfield, 1915-2002; Keller, Holly, ill
texts
eye 92
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Explains what shooting stars are, what they are made of, and what happens to them when they land on Earth
Topics: Meteors, Meteoroids, Meteorites
828
828
Jun 19, 2010
06/10
by
Konopleva, V. P
texts
eye 828
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comment 0
Observational data on physics of meteors and comets
Topics: ASTROPHYSICS, COMETS, ECHOES, GEMINID METEOROIDS, METEOROIDS, COMET, METEOR, PHYSICS
71
71
Oct 22, 2010
10/10
by
Spangenburg, Ray, 1939-; Moser, Diane, 1944-
texts
eye 71
favorite 2
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Explores the mysteries of rocks that travel vast distances through space, sometimes passing through Earth's atmosphere and sometimes landing on the surface
Topics: Meteors, Meteorites, Meteoroids
MOCAGH.ORG: Miscellaneous: dragondata catalog
Topics: dragon, software, meteoroids
16
16
Oct 8, 2020
10/20
by
Littmann, Mark, 1939-
texts
eye 16
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comment 0
x, 349 pages : 26 cm
Topics: Meteors -- November, Comets, Météores -- Novembre, Comètes, METEORS, LEONID METEOROIDS,...
NASA's Meteoroid Environment Office (MEO) recently established two wide-field cameras to detect meteors in the millimeter-size-range. This paper outlines the concepts of the system, the hardware and software, and results of 3,440 orbits seen from December 13, 2012 until May 14, 2014.
Topics: NASA Technical Reports Server (NTRS), METEOROIDS, METEOROID CONCENTRATION, SPORADIC METEOROIDS, CCD...
Four meteor spectra are analyzed for chemical composition and radiative processes. The chemical compositions of the Taurid, Geminid, and Perseid meteors were found to be similar to that of a typical stony meteorite. The chemical composition of the sporadic meteor was found to be similar to that of a nickel iron meteorite. The radiation from optical meteors was found to be similar to that of a low temperature gas, except that strong, anomalous ionic radiation is superposed on the neutral...
Topics: NASA Technical Reports Server (NTRS), CHEMICAL COMPOSITION, METEOROID CONCENTRATION, SPECTRAL...
5
5.0
Dec 16, 2019
12/19
by
Reilly, Carmel
texts
eye 5
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comment 0
32 p. : 29 cm
Topics: Asteroids -- Juvenile literature, Comets -- Juvenile literature, Meteoroids -- Juvenile literature,...
A model of the spatial density distribution of large (m greater than 10(exp -3) g) cometary meteoroids in the inner solar system is obtained assuming that they have orbits closely associated with that of their parent comet. Distributions of the orbital parameters of the Taurid, Quadrantid and Perseid meteoroid streams are used in developing the model.
Topics: NASA Technical Reports Server (NTRS), METEOROIDS, QUADRANTID METEOROIDS, SPATIAL DISTRIBUTION,...
263
263
Jun 1, 2010
06/10
by
Kruchinenko, V. G
texts
eye 263
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Fragmentation of meteor bodies
Topics: FRAGMENTATION, METEOROIDS, PHOTOMETERS, FRAGMENTATION, METEOR
3,258
3.3K
Jun 21, 2010
06/10
by
Arbit, H. A.; Clapp, S. D.; Nagai, C. K
texts
eye 3,258
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comment 0
Feasibility of lithium-fluorine-hydrogen propellant combination
Topics: COMETS, METEOROIDS, COSMOLOGY, DISRUPTING, SOLAR SYSTEM
11
11
Jun 14, 2018
06/18
by
Kortenkamp, Steve
texts
eye 11
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comment 0
32 pages : 23 cm
Topics: Asteroids -- Juvenile literature, Comets -- Juvenile literature, Meteoroids -- Juvenile literature,...
8
8.0
Jan 13, 2020
01/20
by
Howard, Fran, 1953-
texts
eye 8
favorite 1
comment 0
32 pages : 23 cm
Topics: Meteors, Solar system, Comets -- Juvenile literature, Asteroids -- Juvenile literature, Asteriods,...
A statistical analysis of the NASA Space Shuttle Hypervelocity Impact Database to find correlations between meteoroid and orbital debris (M/OD) impacts on the shuttle orbiter fleet and specific mission parameters; Inclination, Altitude, Duration and Year. M/OD impact data, regardless of location, particle type or mission was examined first, followed by the subcategories of Window data, Radiator data, Reinforced Carbon-Carbon (RCC) data, and Flexible Reusable Surface Insulation (FRSI) data. In...
Topics: Regression analysis, Space shuttles, Space debris, Meteoroids
318
318
Jul 6, 2010
07/10
by
WEISS, B
texts
eye 318
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THE USE OF ELECTRON MICROSCOPY TO ANALYZE THE DISLOCATION STRUCTURE OF TWO ALTERNATELY STRESSED AUSTENITIC STEELS IS DISCUSSED. THE MATERIAL WAS STRESSED UNDER THE FATIGUE AND CYCLIC STRESS RANGE. ELECTRON-OPTICAL PHOTOGRAPHS OF DISLOCATION CHARACTERISTICS ARE GIVEN ALONG WITH RESULTS FROM A COMPARISON WITH A MODEL CONCEPTION.
Topics: ASTEROIDS, JUPITER (PLANET), METEOROIDS, EVOLUTION (DEVELOPMENT), SOLAR SYSTEM
375
375
Jun 18, 2010
06/10
by
Delcourt, J
texts
eye 375
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comment 0
Physical theory of meteors and synthesis of results for application to radio meteors
Topics: METEOROIDS, RADIO METEOROLOGY, RADIO METEORS, METEOR, RADIO METEOROLOGY
8
8.0
Jul 1, 2020
07/20
by
Rau, Dana Meachen, 1971-
texts
eye 8
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24 pages : 26 cm
Topics: Comets -- Juvenile literature, Asteroids -- Juvenile literature, Meteoroids -- Juvenile literature,...
5
5.0
Meteors; or, a plain description of all kind of meteors, as well fiery and ayrie, as watry and earthy. Briefly manifesting the causes of all blazing-stars, shooting-stars, flames in the aire, thunder, lightning, earthquakes, rain, dew, snow, clouds, springs, stones, and metalls
May 23, 2022
05/22
by
Fulke, William, 1538-1589
texts
eye 5
favorite 1
comment 0
4 unnumbered leaves, 174 pages, 2 unnumbered pages ; (8vo)
Topics: Meteorology -- Early works to 1800, Meteoroids, Metals, Meteorology, Meteors
496
496
May 27, 2011
05/11
by
PANOV, V. V.; SOBOLEV, YU. S
texts
eye 496
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THE ULTIMATE SERVICEABILITY OF GAS TURBINE ENGINE LUBRICATING OILS IS ASSESSED ON THE BASIS OF RESULTS OF TESTS ON INDIVIDUAL FRICTIONAL ASSEMBLY INSTALLATIONS OF ENGINES AND ON FULL-SCALE ENGINES. IN CERTAIN CASES, OILS ARE TESTED UNDER IN-FLIGHT CONDITIONS.
Topics: COLLISIONS, METEORITES, METEOROIDS, MOLECULES, ATMOSPHERES, DECELERATION, ATMOSPHERIC DENSITY
218
218
Jun 27, 2010
06/10
by
Hawthorne, M. F.; Wiersema, R. J.; Takasugi, M
texts
eye 218
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comment 0
In vitro studies using boron-labeled antibodies and elemental boron as neutron target in therapy for tumors and cancer
Topics: MASS, METEOROIDS, TRAJECTORY ANALYSIS, BOLIDES, LUMINOUS INTENSITY, METEORITES, PHOTOMETRY
6
6.0
Jun 13, 2022
06/22
by
Willsford, Thomas
texts
eye 6
favorite 1
comment 0
7 unnumbered leaves, 199 pages : (8vo)
Topics: Meteorology -- Early works to 1800, Meteoroids, Astronomy, Meteorology, Meteors
527
527
texts
eye 527
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comment 0
The thermal aspects of using filamentary composite materials as primary airframe structures on advanced atmospheric entry spacecraft such as the space shuttle vehicle were investigated to identify and evaluate potential design approaches for maintaining composite structures within allowable temperature limits at thermal protection system (TPS) attachments and/or penetrations. The investigation included: (1) definition of thermophysical data for composite material structures; (2) parametric...
Topics: ASTEROIDS, COMETS, METEOROIDS, CHEMICAL COMPOSITION, EVOLUTION (DEVELOPMENT), METEORITES, TEKTITES
351
351
May 27, 2011
05/11
by
NON
texts
eye 351
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During the first powered flight of the North American X-15 research airplane on September 17, 1959, a Mach number of 2.1 and an altitude of 52,000 feet were attained. Static and dynamic maneuvers were performed to evaluate the characteristics of the airplane at subsonic and supersonic speeds. Data from these maneuvers as well as from the launch and landing phases are presented, discussed, and compared with predicted values. The rate of separation of the X-15 from the B-52 carrier airplane at...
Topics: INTERNATIONAL GEOPHYSICAL YEAR, VELOCITY MEASUREMENT, RADAR TRACKING, METEOROIDS, ALTITUDE,...
692
692
Jul 6, 2010
07/10
by
ROTH, W
texts
eye 692
favorite 0
comment 1
CRITICAL FLUTTER VELOCITY FOR A MEMBRANE IN A NONCONSERVATIVE SYSTEM IS CONSIDERED. IT IS SHOWN THAT THE DAMPING FORCES HAVE A DESTABILIZING EFFECT AND THAT A DISCONTINUITY APPEARS IN THE STABILITY CRITERION WHICH DEPENDS ON THE DAMPING COEFFICIENT AND IS CHARACTERISTIC OF NONCONSERVATIVE SYSTEMS. BY MEANS OF THIS THEORY, THE FLUTTER OF WEATHER VANES OR SAILS, AS WELL AS THE RELATED TRAVELING TRANSVERSE WAVES, CAN BE EXPLAINED.
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Topics: ATMOSPHERIC DENSITY, LUMINANCE, METEOROIDS, MATHEMATICAL MODELS, METEOR TRAILS, TURBULENCE,...
5
5.0
Jun 13, 2022
06/22
by
Willsford, Thomas
texts
eye 5
favorite 1
comment 0
8 unnumbered leaves, 199 pages, 4 unnumbered leaves : (8vo)
Topics: Meteorology -- Early works to 1800, Meteoroids, Astronomy, Meteorology, Meteors
The evolution of the P/Machholz's meteoroid stream was simulated. It shows that this stream may produce eight meteor showers. There are the known observed meteor showers such as the Quadrantids, Ursids, Northern and Southern delta-Aquarids, Daytime Arietids, and alpha-Cetids. A satisfactory agreement of the theoretical and observed geocentric radiants and orbits allows one to conclude that the above showers could have been resulted from the decay of the P/Machholz nucleus. The age of the stream...
Topics: NASA Technical Reports Server (NTRS), METEOROID SHOWERS, METEOROIDS, ORBITAL ELEMENTS, QUADRANTID...
214
214
Jul 6, 2010
07/10
by
Buckley, D. H.; Brainard, W. A
texts
eye 214
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Sliding friction and wear experiments were conducted with ternary ordered alloys of iron and cobalt containing various amounts of silicon to 5 weight percent. The friction and wear of these alloys were compared to those for binary iron-cobalt alloys in the ordered and disordered states and to those for the conventionally used bearing material, 440-C. Environments in which experiments were conducted included air, argon, and 0.25percent stearic acid in hexadecane. Results indicate that a ternary...
Topics: METEOROIDS, SPACE PROBES, INTERSTELLAR MAGNETIC FIELDS, METEORITES, SOLAR MAGNETIC FIELD
269
269
Jun 26, 2010
06/10
by
Parker, J. A.; Riccitiello, S. R
texts
eye 269
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Modification of polyurethanes with alkyl halide resins, inorganic salts, and encapsulated volatile and reactive halogen for fuel fire control
Topics: ATOMS, METEOROIDS, MOLECULAR DIFFUSION, THEORETICAL PHYSICS, CROSS SECTIONS, DIFFUSION THEORY
355
355
Jun 21, 2010
06/10
by
Woollam, J. A
texts
eye 355
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comment 0
Spin-orbit coupling and energy shifts in single crystal and pyrolytic graphite
Topics: METEORITIC COMPOSITION, METEOROIDS, TRAJECTORY ANALYSIS, CALIBRATING, DENSITY MEASUREMENT,...
580
580
May 26, 2011
05/11
by
Ardema, Mark D.; Windhorst, Robert; Phillips, Jame
texts
eye 580
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comment 0
This paper develops a near-optimal guidance law for generating minimum fuel, time, or cost fixed-range trajectories for supersonic transport aircraft. The approach uses a choice of new state variables along with singular perturbation techniques to time-scale decouple the dynamic equations into multiple equations of single order (second order for the fast dynamics). Application of the maximum principle to each of the decoupled equations, as opposed to application to the original coupled...
Topics: THERMOLUMINESCENCE, CHONDRITES, PERIHELIONS, CLUSTERS, SUN, METEOROIDS, ALBEDO, ORBITALS, COSMIC...
The three-station Canadian Meteor Orbit Radar (CMOR) is used here to examine the Geminid meteor shower with respect to variation in the stream properties including the flux and orbital elements over the period of activity in each of the consecutive years 2005 2008 and the variability from year to year. Attention is given to the appropriate choice and use of the D-criterion in the separating the shower meteors from the sporadic background.
Topics: NASA Technical Reports Server (NTRS), SOLAR LONGITUDE, ORBITAL ELEMENTS, GEMINID METEOROIDS,...
52
52
Jul 26, 2018
07/18
by
Hamilton, Hugh, 1729-1805
texts
eye 52
favorite 1
comment 0
177 pages, 1 unnumbered folded leaf of plates : 18 cm
Topics: Meteorology, Air, Mechanics, Physics, Meteoroids, Comets, Mechanics, Meteorology, Physics, Vapors
1,004
1.0K
Jul 6, 2010
07/10
by
Vannimwegen, R. R.; Tepper, S
texts
eye 1,004
favorite 0
comment 0
Combinations of high temperature gradients associated with strong transients in both temperature and rotational speed fields are discussed. Blade definition and results of the analysis are shown. Since the same model should later be used to define some dynamic characteristics and certain areas would require a nonlinear analysis, NASTRAN was chosen as a convenient program to manage the several alternatives.
Topics: FLARED BODIES, FRAGMENTATION, MATHEMATICAL MODELS, METEOROIDS, ASTRONOMICAL PHOTOMETRY, BRIGHTNESS,...
333
333
Jul 11, 2010
07/10
by
Pierce, W. N
texts
eye 333
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comment 0
Investigations were performed to determine optimum exposure and processing procedures necessary to partially offset the effect of radiation to which film type SO-168 will be exposed during the Skylab Mission. This task became necessary when it was determined that original predictions of 2 to 3 RADS of radiation to which the film will be exposed were too low, and that levels as high as 3.5 to 4.0 RADS may be incurred, thus reducing image quality below an acceptable level. Tests results show that...
Topics: ASTRONOMICAL OBSERVATORIES, METEOROIDS, OPTICAL MEASUREMENT, OPTICAL MEASURING INSTRUMENTS,...
289
289
May 6, 2010
05/10
by
Keay, C. S. L
texts
eye 289
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comment 0
Radar detection system for delineating meteor radiants
Topics: DETECTION, MAGNITUDE, METEOR TRAILS, METEOROIDS, RADAR DETECTION, METEOR TRAIL, RADAR DETECTOR
436
436
May 29, 2011
05/11
by
NON
texts
eye 436
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A method of growing atomically-flat surfaces and high quality low-defect crystal films of semiconductor materials and fabricating improved devices thereon is discussed. The method is also suitable for growing films heteroepitaxially on substrates that are different than the film. The method is particularly suited for growth of elemental semiconductors (such as Si), compounds of Groups III and V elements of the Periodic Table (such as GaN), and compounds and alloys of Group IV elements of the...
Topics: LEONID METEOROIDS, HALOS, SPATIAL DISTRIBUTION, COMET TAILS, PHOTOGRAPHIC RECORDING, SOLAR LONGITUDE
No abstract available
Topics: NASA Technical Reports Server (NTRS), METEOROID SHOWERS, SPORADIC METEOROIDS, METEOROIDS,...
The overwhelming majority of meteor streams are generally assumed to be formed due to the decay of comets. The most effective process of the release of solid particles from a cometary nucleus is their ejection by sublimating gases when the comet approaches the Sun. The results of investigation of the Geminids and Quadrantids meteor stream evolution show that under the influence of planetary perturbations, the stream may originally be flat but then thicken depending on the variation range of...
Topics: NASA Technical Reports Server (NTRS), COMET NUCLEI, EJECTA, METEOROID SHOWERS, PARTICLE TRACKS,...
As soon as reliable methods for observationally determining the heliocentric orbits of meteoroids and hence the mean orbit of a meteoroid stream in the 1950s and 60s, astronomers strived to investigate the evolution of the orbit under the effects of gravitational perturbations from the planets. At first, the limitations in the capabilities of computers, both in terms of speed and memory, placed severe restrictions on what was possible to do. As a consequence, secular perturbation methods, where...
Topics: NASA Technical Reports Server (NTRS), METEOROIDS, STREAMS, SOLAR ORBITS, GEMINID METEOROIDS,...
342
342
May 31, 2011
05/11
by
Colwell, Joshua E.; Robertson, S.; Horanyi, M
texts
eye 342
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The investigation 'Dusty Plasma Dynamics Near Surfaces in Space' is an experimental and theoretical study of the dynamics of dust particles on airless bodies in the solar system in the presence of a photoelectron sheath generated by solar ultraviolet light impinging on the surface. Solar UV illumination of natural and manmade surfaces in space produces photoelectrons which form a plasma sheath near the surface. Dust particles on the surface acquire a charge and may be transported by electric...
Topics: PREVENTION, METEOROIDS, ASTEROIDS, COMETS, LASERS, ABLATION, DETECTION, EARLY WARNING SYSTEMS,...
Geminid meteoroids, selected from a large set of precisely-reduced meteor orbits from the photographic and radar catalogues of the IAU Meteor Data Center (Lindblad et al. 2003), and from the Japanese TV meteor shower catalogue (SonotaCo 2010), have been analyzed with the aim of determining the orbits distribution in the stream, based on the dispersion of their periods P . The values of the reciprocal semi-major axis 1/a in the stream showed small errors in the velocity measurements. Thus, it...
Topics: NASA Technical Reports Server (NTRS), METEOROID SHOWERS, ORBITAL ELEMENTS, ASTRONOMY, EARTH ORBITS,...
Different authors have produced models for the physical properties of meteoroids based on the shape of a meteor's light curve, typically from short observing campaigns. We here analyze the height profiles and light curves of approx.200 double-station meteors from the Leonids and Perseids using data from the Virtual Meteor Observatory, to demonstrate that with this web-based meteor database it is possible to analyze very large datasets from different authors in a consistent way. We compute the...
Topics: NASA Technical Reports Server (NTRS), LEONID METEOROIDS, NORMAL DENSITY FUNCTIONS, BRIGHTNESS,...
The flux of meteoroids, or number of meteoroids per unit area per unit time, is critical for calibrating models of meteoroid stream formation and for estimating the hazard to spacecraft from shower and sporadic meteors. Although observations of meteors in the millimetre to centimetre size range are common, flux measurements (particularly for sporadic meteors, which make up the majority of meteoroid flux) are less so. It is necessary to know the collecting area and collection time for a given...
Topics: NASA Technical Reports Server (NTRS), METEOROID CONCENTRATION, METEOROIDS, METEORITES, MILLIMETER...
