Based on a vertical motion model derived by Martin (1964), and applied by Jarrell (1967), a method is developed for producing diabatic heating function fields at 50 millibars from independently computed fields of diabatic and adiabatic vertical motion. Vertical motions over and above the adiabatically computed part are found to be of major significance in the diabatic heating function calculations. The resulting heating function fields are shown to be compatible with existing synoptic trends at...
Topics: DIABATIC HEATING, GRAPHS(CHARTS)
An investigation of near-bottom currents in the head of Monterey Submarine Canyon was conducted between March 1967 and May 1968. Continuous observations of water temperature, current speed and direction were obtained over periods ranging from 5 hours to 162 hours using an in situ Savonius rotor current measuring system. Basic statistical parameters and power spectra were calculated for each record. These revealed an average current speed of about 0.23 knot (standard deviation of 0.17 knot), and...
Topics: Oceanography, GRAPHS(CHARTS), MONTEREY SUBMARINE CANYON
191
191
Jun 13, 2011
06/11
by
Abell, P. A.; Mittlefehdlt, D. W.; Gaffey, M. J
texts
eye 191
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There are currently five known groups of basaltic achondrites that represent material from distinct differentiated parent bodies. These are the howardite-eucrite-diogenite (HED) clan, mesosiderite silicates, angrites, Ibitira, and Northwest Africa (NWA) 011 [1]. Spectroscopically all these basaltic achondrite groups have absorption bands located near 1 and 2 microns due to the presence of pyroxene. Some of these meteorite types have spectra that are quite similar, but nevertheless have...
Topics: DECOMPOSITION, ALGORITHMS, POLYNOMIALS, CONSTRAINTS, GRAPHS (CHARTS)
229
229
Jun 13, 2011
06/11
by
Jones, Michael G.; Parrott, Tony L
texts
eye 229
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CONTINUING progress in materials technology provides potential for improved acoustic liners for attenuating broadband fan noise emissions from aircraft engine nacelles. Conventional liners (local-reacting perforate-over-honeycomb structures) provide significant narrow-band attenuation, but limited attenuation over wide bandwidths. Two approaches for increasing attenuation bandwidth are to (1) replace the honeycomb structure with bulk material, or (2) cascade multiple layers of...
Topics: ALGORITHMS, GRAPHS (CHARTS), FORECASTING, PLANNING, DATA SYSTEMS, DOMAINS, ECOSYSTEMS
50
50
Nov 19, 2018
11/18
by
Craver, John S
texts
eye 50
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comment 0
232 pages : 28 cm
Topics: Graphic methods, Photoduplication, Photocopying, Copying processes, GRAPHS, Graphs (Charts)
1,474
1.5K
Jun 21, 2010
06/10
by
IVANOV, YE. A
texts
eye 1,474
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comment 0
MATHEMATIC MODELS OF ELECTROMAGNETIC WAVE DIFFRACTION ON TWO BODIES
Topics: CASCADE FLOW, HYDROFOILS, CAVITATION FLOW, GRAPHS (CHARTS), PERFORMANCE TESTS
169
169
Jul 12, 2010
07/10
by
Movchan, A. A
texts
eye 169
favorite 0
comment 0
No Abstract Available
Topics: COMMUNICATION EQUIPMENT, EQUIPMENT SPECIFICATIONS, SPACE TRANSPORTATION SYSTEM, GRAPHS (CHARTS),...
225
225
Jun 27, 2010
06/10
by
Dobrichovsky, Z
texts
eye 225
favorite 0
comment 0
No Abstract Available
Topics: FLIGHT CONTROL, FREE FLIGHT, AERODYNAMIC CHARACTERISTICS, GRAPHS (CHARTS), STRUCTURAL DESIGN
362
362
Jul 6, 2010
07/10
by
VINOGRADOV, A. P.; SURKOV, Y., et al
texts
eye 362
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SOVIET AUTOMATIC STATIONS CARRIED OUT A WIDE RANGE OF INVESTIGATIONS OF MARS AND VENUS. LUNA-20 BROUGHT SOIL FROM THE CONTINENTAL REGION OF THE MOON BACK TO EARTH. THE PROGNOZ SATELLITES ARE ON 24-HOUR WATCH ALONG THE EARTH. A NUMBER OF IMPORTANT AGREEMENTS WERE REACHED BETWEEN THE U.S.S.R. AND THE U.S.A. IN THE AREA IN THE AREA OF THE INVESTIGATION OF SPACE. THIS COLLECTION, BASICALLY COMPILED FROM MATERIALS PUBLISHED IN THE CENTRAL PRINTING OFFICE, DISCUSSES THESE ACHIEVEMENTS AND THE...
Topics: AERODYNAMIC COEFFICIENTS, FLIGHT SIMULATORS, ERRORS, GRAPHS (CHARTS), WIND TUNNEL TESTS
527
527
Jul 12, 2010
07/10
by
Zeleznik, F. J.; Donovan, L. F
texts
eye 527
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Functions for the representation of the thermodynamic properties of nonideal solutions were applied to the experimental data for several highly nonideal solutions. The test solutions were selected to cover both electrolyte behavior. The results imply that the functions are fully capable of representing the experimental data within their accuracy over the whole composition range and demonstrate that many nonideal solutions can be regarded as members of the defined class of nonideal solutions.
Topics: ADHESION TESTS, AIRCRAFT TIRES, DYNAMOMETERS, GRAPHS (CHARTS), TABLES (DATA), TREADS
327
327
Jul 5, 2010
07/10
by
Sewall, J. L
texts
eye 327
favorite 0
comment 0
No Abstract Available
Topics: EQUIPMENT SPECIFICATIONS, WIND TUNNEL STABILITY TESTS, GRAPHS (CHARTS), STRUCTURAL DESIGN
318
318
Jul 6, 2010
07/10
by
Greenwood, R. F
texts
eye 318
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For the eighth consective year, high-altitude calibration of solar cells was accomplished with the aid of free-flight balloons. Flights were conducted to an altitude of 36,576 m which is above 99.5% of earth's atmosphere where all water vapor levels and significant ozone bands are absent. Solar cells calibrated in this manner are significant used as intensity references in solar simulators and in terrestrial sunlight. Discussed is the method employed for high altitude balloon flight solar cell...
Topics: BALLOON SOUNDING, ERROR ANALYSIS, WIND (METEOROLOGY), GRAPHS (CHARTS), INTERROGATION, OPTIMIZATION
999
999
Jul 6, 2010
07/10
by
Vannimwegen, R. R.; Tepper, S
texts
eye 999
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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,...
An updated summary is presented of the lightning activity recorded at the John F. Kennedy Space Center and the Cape Kennedy Air Force Station. Data was compiled during the periods 1903 through 1924, 1957 through 1962, and 1964 through 1971.
Topics: NASA Technical Reports Server (NTRS), FLORIDA, LIGHTNING, GRAPHS (CHARTS), TABLES (DATA)
359
359
Jun 21, 2010
06/10
by
Costen, R. C
texts
eye 359
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comment 0
Equation for vortex motion including effects of buoyancy and sources with applications to tornadoes
Topics: ELECTRICAL RESISTIVITY, GRAPHS (CHARTS), METALS, TABLES (DATA), LOW TEMPERATURE, PURITY,...
214
214
Jun 19, 2010
06/10
by
Sychev, V. V
texts
eye 214
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comment 0
Graphic method of recording pulse using electronic cardioscope and piezoelectric sensor
Topics: COUNTERS, ELECTROCARDIOGRAPHY, GRAPHS (CHARTS), OSCILLOSCOPES, PIEZOELECTRICITY, SENSORS,...
291
291
Jul 10, 2010
07/10
by
HONNEF, H
texts
eye 291
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A WINDPOWERED ELECTRICAL GENERATOR IS REPORTED THAT CONSISTS OF TWO COUNTER-ROTATING WHEELS, ONE BEING THE ARMATURE AND THE OTHER BEING THE FIELD. MEANS OF COMPENSATING FOR VARYING WIND SPEED ARE DESCRIBED.
Topics: ARIZONA, METEOROLOGICAL PARAMETERS, OBSERVATORIES, ANNUAL VARIATIONS, GRAPHS (CHARTS), TABLES...
322
322
Jun 21, 2010
06/10
by
Rozhkovskiy, D. A., et al
texts
eye 322
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comment 0
Flux and dimension values of reflecting nebulae and magnitudes and spectral classes of illuminating stars
Topics: GEOLOGY, PALEOMAGNETISM, REVERSING, STRATIGRAPHY, EUROPE, GRAPHS (CHARTS), NORTH AMERICA, TABLES...
290
290
Jul 10, 2010
07/10
by
BORISOV, O
texts
eye 290
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PSYCHOLOGICAL COMPATIBILITY IN AN INTERNATIONAL CREW IS DISCUSSED. ALTHOUGH DISAGREEMENTS AND CLIQUE FORMATIONS ARE INEVITABLE, THEY CAN BE MINIMIZED BY A SCIENTIFIC APPROACH TO GROUP SELECTION AND, ESPECIALLY, SELECTION OF A COMMANDER. SELECTION SHOULD BE BASED NOT ONLY ON PROFESSIONAL QUALIFICATIONS, BUT ALSO ON THE INDIVIDUAL'S ABILITY TO RELATE TO OTHERS, AND TRAINING SHOULD DEVELOP THIS ABILITY. PREVIOUS EXPERIENCE IN STRESS SITUATIONS IS VERY HELPFUL. GOOD GROUP RELATIONS ARE ALSO AIDED...
Topics: WEIGHT MEASUREMENT, WINDPOWERED GENERATORS, AIR INTAKES, DIAMETERS, GRAPHS (CHARTS), POLES...
259
259
Jul 5, 2010
07/10
by
Shipway, G
texts
eye 259
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comment 0
No Abstract Available
Topics: AERODYNAMIC CHARACTERISTICS, BLUNT BODIES, STABILITY, TRANSONIC WIND TUNNELS, GRAPHS (CHARTS),...
1,758
1.8K
Jun 21, 2010
06/10
by
Yakovlev, A. S
texts
eye 1,758
favorite 4
comment 0
History of USSR aviation industry, aircraft design, and air transportation
Topics: ARTIFICIAL SATELLITES, ATMOSPHERIC DENSITY, VISUAL OBSERVATION, GRAPHS (CHARTS), SYNCHRONISM,...
261
261
Jun 27, 2010
06/10
by
Tyner, T. W
texts
eye 261
favorite 0
comment 0
No Abstract Available
Topics: BALLISTIC MISSILES, GRAPHS (CHARTS), TABLES (DATA), WIND TUNNEL STABILITY TESTS, PRESSURE...
240
240
Jul 12, 2010
07/10
by
Edgecombe, D. S.; Rice, E. E.; Conlon, R. J.; Miller, N. E.; Yates, K. R
texts
eye 240
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comment 0
No Abstract Available
Topics: LUNAR ENVIRONMENT, LUNAR EXPLORATION, TERRESTRIAL RADIATION, GRAPHS (CHARTS), ILLUMINATION,...
252
252
Jul 11, 2010
07/10
by
NON
texts
eye 252
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Contractor and NASA technical management for the development and manufacture of the Skylab modules is reviewed with emphasis on the following management controls: configuration and interface management; vendor control; and quality control of workmanship. A review of the modified two-stage Saturn V launch vehicle which focused on modifications to accommodate the Skylab payload; resolution of prior flight anomalies; and changes in personnel and management systems is presented along with an...
Topics: BACKSCATTERING, MARS SURFACE, RADAR MEASUREMENT, GRAPHS (CHARTS), NUMERICAL ANALYSIS, REFLECTANCE,...
Under an SBIR agreement with Langley Research Center, Vision Micro Design Inc. has developed a line of advanced engine monitoring systems using the latest technology in graphic analog and digital displays. Vision Micro Design is able to meet the needs of today's pilots.
Topics: NASA Technical Reports Server (NTRS), ENGINE CONTROL, MONITORS, GRAPHS (CHARTS), DISPLAY DEVICES
266
266
Jun 21, 2010
06/10
by
Sobolev, N. N.; Sokovikov, V. V
texts
eye 266
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comment 0
Oscillation mechanism and processes producing population inversion in carbon dioxide lasers
Topics: LINEAR SYSTEMS, MATHEMATICAL MODELS, STABILITY, SYSTEMS ANALYSIS, GRAPHS (CHARTS), SENSITIVITY,...
404
404
Jun 21, 2010
06/10
by
Pendley, R. E
texts
eye 404
favorite 0
comment 0
Acoustically treated nacelle design selected for flight test program of DC 8 aircraft
Topics: ENERGY CONVERSION EFFICIENCY, FUEL FLOW, MOTORS, FLUID MECHANICS, GRAPHS (CHARTS), PROPELLANT...
222
222
Jun 21, 2010
06/10
by
NON
texts
eye 222
favorite 0
comment 0
No Abstract Available
Topics: BALLISTIC TRAJECTORIES, DESCENT TRAJECTORIES, MODELS, BOMBS (ORDNANCE), EVALUATION, GRAPHS...
220
220
Jun 26, 2011
06/11
by
Nakamura-Messenger, K.; Keller, L. P.; Clemett, S. J.; Jones, J. H.; Palma, R. L.; Pepin, R. O.; Kloeck, W.; Zolensky, M. E.; Messenger, S
texts
eye 220
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Comet 26P/Grigg-Skjellerup was identified as a source of an Earth-crossing dust stream with low Earth-encounter velocities, with peak anticipated fluxes during April in 2003 and 2004 [1]. In response to this prediction, NASA performed dedicated stratospheric dust collections using high altitude aircraft to target potential interplanetary dust particles (IDPs) from this comet stream in April 2003. Several IDPs from this collection have shown unusually low noble gas abundances [2] consistent with...
Topics: ALGORITHMS, DATA PROCESSING, GRAPHS (CHARTS), COMPUTATION, COMPUTER SYSTEMS PERFORMANCE,...
429
429
Jul 9, 2010
07/10
by
Schafer, G
texts
eye 429
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comment 0
Research advancements in cardiology instrumentation and techniques are summarized. Emphasis is placed upon the following techniques: (1) development of electrodes which show good skin compatibility and wearer comfort; (2) contourography - a real time display system for showing the results of EKGs; (3) detection of arteriosclerosis by digital computer processing of X-ray photos; (4) automated, noninvasive systems for blood pressure measurement; (5) ultrasonoscope - a noninvasive device for use...
Topics: SEA WATER, STATISTICAL ANALYSIS, STEREOPHOTOGRAPHY, WATER WAVES, GRAPHS (CHARTS), SLOPES, WAVE...
205
205
Jul 12, 2010
07/10
by
Orrok, G. T
texts
eye 205
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comment 0
No Abstract Available
Topics: CRATERS, GRAPHS (CHARTS), HYPERVELOCITY IMPACT, LUNAR CRATERS, LUNAR TOPOGRAPHY, METEORITE...
308
308
Jun 21, 2010
06/10
by
NON
texts
eye 308
favorite 0
comment 0
No Abstract Available
Topics: BOMBS (ORDNANCE), DROP TESTS, GRAPHS (CHARTS), STATIC LOADS, FIGHTER AIRCRAFT, WIND TUNNELS
282
282
Jun 21, 2010
06/10
by
Griffiths, P. R.; Lippincott, E. R.; Schuhmann, P. J.; Weiffenbach, C. K
texts
eye 282
favorite 0
comment 0
No Abstract Available
Topics: COMMAND MODULES, ENVIRONMENTAL TESTS, FLOTATION, SCALE MODELS, BUOYANCY, ENVIRONMENT SIMULATION,...
420
420
Jul 11, 2010
07/10
by
NON
texts
eye 420
favorite 0
comment 0
No Abstract Available
Topics: ATLAS ICBM, MERCURY PROJECT, MISSILE TESTS, PERFORMANCE, GRAPHS (CHARTS), GROUND SUPPORT EQUIPMENT
811
811
Jul 11, 2010
07/10
by
Tikhonravov, M. K.; Bazhinov, I. K.; Gurko, O. V.; Maksimov, G. Y.; Yatsunskiy, I. M
texts
eye 811
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The basic concepts of the unperturbed (Keplerian) motion of a satellite are discussed. The effect on satellite motion of the following principal perturbing factors is analyzed: errors of satellite insertion into orbit, noncentrality of the earth's gravitational field, air drag, anomalies of gravitational force, attraction of moon and sun, and solar wind pressure. The basic methods of determining satellite orbits from measurements are given. Problems of inserting artificial earth satellites into...
Topics: BACKSCATTERING, MARS SURFACE, RADAR MEASUREMENT, RADIO ALTIMETERS, GRAPHS (CHARTS), REFLECTANCE,...
245
245
May 27, 2011
05/11
by
Gracey, William; Stickle, Joseph W
texts
eye 245
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comment 0
Flight tests have been conducted to determine the repeatability of the over-all altimetry errors in the landing-approach condition of two sensitive altimeters (Air Force type C-12) installed in the cockpit of a transport airplane and of four precision altimeters (Air Force type MA-1) installed in a photo-observer. Data were obtained through a speed range of 62 to 100 knots during 42 landing-approach operations conducted on four different days. The results of the tests show that the...
Topics: SOLENOIDS, ELECTROMAGNETIC FIELDS, MAGNETIC FIELD CONFIGURATIONS, ELECTROMAGNETISM, ELLIPTIC...
293
293
Jun 21, 2010
06/10
by
Einstein, A
texts
eye 293
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comment 0
Molecular-kinetic theory and hydrodynamic equations for analyzing molecular diffusion
Topics: ALGORITHMS, AUTOMATIC CONTROL, GRAPHS (CHARTS), TRANSFER FUNCTIONS, COMPUTERS, CONTROL EQUIPMENT,...
227
227
Jul 12, 2010
07/10
by
Johnson, J. E.; Weygand, A. G
texts
eye 227
favorite 0
comment 0
No Abstract Available
Topics: APOLLO 16 FLIGHT, LUNAR ROVING VEHICLES, PERFORMANCE, GRAPHS (CHARTS), SURFACE ROUGHNESS EFFECTS
241
241
Jun 1, 2011
06/11
by
Martin, Norman J
texts
eye 241
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An investigation of an NACA submerged intake installation on the Ryan FR-1 was conducted to determine the full-scale aerodynamic characteristics of this installation. In addition, tests were conducted on the submerged inlet with revised entrance lips and deflectors to determine the configuration which would result in the best dynamic pressure recovery measured at the inlet for this installation without a major rework of the entrance. Stalling of the air flow over the inner lip surface created...
Topics: THEOREM PROVING, COMPUTER PROGRAMS, MATHEMATICAL MODELS, HIERARCHIES, INDUCTION (MATHEMATICS),...
486
486
Jul 10, 2010
07/10
by
NON
texts
eye 486
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DATA ARE PRESENTED WHICH WERE COLLECTED BY THE SOVIET PARTY TO THE SOVIET-AMERICAN PROJECT ON MICROWAVE MEASUREMENT OF ICE COVER, SEA STATE AND PRECIPITATION IN BERING SEA, FEBRUARY 15 TO MARCH 7, 1973.
Topics: RADIATION HAZARDS, RADIATION PROTECTION, SPACE FLIGHT, APOLLO PROJECT, GRAPHS (CHARTS), U.S.S.R....
1,764
1.8K
Jul 12, 2010
07/10
by
NON
texts
eye 1,764
favorite 0
comment 0
No Abstract Available
Topics: SPACE SHUTTLES, SPACECRAFT PERFORMANCE, WEIGHT ANALYSIS, GRAPHS (CHARTS), SPACE TRANSPORTATION...
268
268
Jul 11, 2010
07/10
by
NON
texts
eye 268
favorite 0
comment 0
No Abstract Available
Topics: ELECTRIC FIELDS, METEOROLOGICAL FLIGHT, THUNDERSTORMS, CLOUDS (METEOROLOGY), ELECTRON DENSITY...
536
536
Jul 26, 2010
07/10
by
Roberts, B. C.; Carrasquillo, R. L.; Dubiel, M. Y.; Ogle, K. Y.; Perry, J. L.; Whitley, K. M
texts
eye 536
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A description of the phase 3 simplified integrated test (SIT) conducted at the Marshall Space Flight Center (MSFC) Core Module Integration Facility (CMIF) in 1989 is presented. This was the first test in the phase 3 series integrated environmental control and life support systems (ECLSS) tests. The basic goal of the SIT was to achieve full integration of the baseline air revitalization (AR) subsystems for Space Station Freedom. Included is a description of the SIT configuration, a performance...
Topics: BEARINGS, VISCOSITY, COMPUTATION, ELASTOHYDRODYNAMICS, LUBRICANTS, LUBRICATION, SURFACE ROUGHNESS,...
416
416
Jul 12, 2010
07/10
by
Zalovcik, J. A
texts
eye 416
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comment 0
No Abstract Available
Topics: DECELERATION, GRAPHS (CHARTS), HIGH ACCELERATION, LUNAR CRATERS, LUNAR TOPOGRAPHY, HIGH RESOLUTION,...
278
278
Jul 5, 2010
07/10
by
ALTHOF, W.; MUELLER, J
texts
eye 278
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comment 0
LAMINATED STRUCTURES OF PLASTICS REINFORCED WITH CARBON AND BORON FIBERS AND CONTAINING BOLT HOLES WERE TESTED FOR STRENGTH UNDER DIFFERENT CONDITIONS OF FIBER ORIENTATION, HOLE DIAMETER, AND HOLE SPACING FROM THE EDGES. LAMINATES WITH FIBER ORIENTATIONS IN 0 AND PLUS OR MINUS 45 DEG REACH A RELATIVELY HIGH BOLT HOLE STRENGTH EVEN WITH RELATIVELY SMALL END SPACING AND SHOULD BE PREFERRED FOR AIRCRAFT CONSTRUCTION. A LARGE NUMBER OF PRACTICAL ADHESIVES ARE SUITABLE FOR BONDING BORON FIBER...
Topics: GEOMAGNETISM, PIONEER 7 SPACE PROBE, SOLAR ROTATION, GRAPHS (CHARTS), MAGNETIC FIELDS, SOLAR WIND
471
471
Jul 11, 2010
07/10
by
KOKUSHKIN, N. V
texts
eye 471
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A METHOD OF ALGEBRAIC EQUATIONS IS DERIVED FOR DETERMINING THE REFLECTION CHARACTERISTICS OF ACOUSTIC WAVES IN THE SUBCRITICAL SECTION OF A LAVAL NOZZLE DURING COMBUSTION. THE COEFFICIENT MATRIX OF THESE EQUATIONS IS USED AS THE BASIC CHARACTERISTIC OF THE ACOUSTIC PROPERTY OF THE NOZZLE. THE AMPLITUDES OF REFLECTED ACOUSTIC WAVES ARE ALSO DETERMINED FROM THE APPLITUDES OF INCIDENT ACOUSTIC WAVES. A LINEAR BOUNDARY VALUE PROBLEM IS SOLVED IN THE PROCESS.
Topics: ATLANTIC OCEAN, BUOYS, EOLE SATELLITES, SATELLITE TRACKING, GEOPHYSICS, GRAPHS (CHARTS), TABLES...
417
417
Jun 21, 2010
06/10
by
Kirkland, E. V.; Salyer, I. O.; Wilken, P. H
texts
eye 417
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Ethylene/acrylic acid separators for silver zinc battery applications
Topics: MARINER 5 SPACE PROBE, SPACE MISSIONS, SPACECRAFT PERFORMANCE, TABLES (DATA), GRAPHS (CHARTS),...
1,436
1.4K
Jul 11, 2010
07/10
by
NON
texts
eye 1,436
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Active university research projects for Fiscal Year 1975 are reported by state, and foreign country. Cross indexes by: (1) grant/contract number; (2) field of science and engineering; (3) technical officer location; and (4) RTOP are included.
Topics: COMPUTER GRAPHICS, COMPUTER TECHNIQUES, MANAGEMENT, MANAGEMENT INFORMATION SYSTEMS, DATA BASES,...
372
372
Jun 21, 2010
06/10
by
NON
texts
eye 372
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comment 0
Gel clogging material in earth and space storable propellants
Topics: APOLLO 11 FLIGHT, POSTFLIGHT ANALYSIS, TRAJECTORIES, DATA PROCESSING, DATA REDUCTION, GRAPHS...
2,013
2.0K
texts
eye 2,013
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comment 0
No Abstract Available
Topics: ENGINE INLETS, PRESSURE GRADIENTS, RAMJET ENGINES, STATIC TESTS, GRAPHS (CHARTS), MATHEMATICAL...