201
201
May 20, 2011
05/11
by
Brooks, Donald
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eye 201
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No Abstract Available
Topic: AIRPLANES - PERFORMANCE PREDICTION
The purpose of this study was to examine various factors in a student 's back ground and investigate how they affect the student's performance in the first accounting courses taken at the Naval Postgraduate School (NPS). An understanding of these factors could enable future students to perform better academically. This understanding could also prove useful in the screening process used to select Naval Officers for study in Administrative Sciences at the Naval Postgraduate School. The findings...
Topics: Management, Academic performance prediction
224
224
Jun 18, 2010
06/10
by
Siforov, V. I
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eye 224
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Component reliability and performance prediction calculated for systems containing abundant elements
Topics: ABUNDANCE, COMPONENT RELIABILITY, PERFORMANCE PREDICTION, RELIABILITY, REPLACING, COMPONENT...
Three groups of subjects were tested with serial reaction time tests of varying complexity and presentation rate. An ECG was collected from each subject throughout the test, and a measure of internal processing speed was defined using the ECG as input. It was found that there was an observable effect of the internal processing speed on the response rate of the subjects. An examination of relative scholastic achievement of the subjects showed that it was related to the change in the subject's...
Topics: information processing, sinus arrhythmia, performance prediction
An existing code for calculating axial turbine performance using multiple stream surfaces was modified and made to run on the equivalent of an HP- 1000 computer system. Calculations were made for the geometry of a 485 horsepower dual-discharge air-drive turbine for both on and off -design conditions. The results were compared with available data obtained at off -design speeds. Agreement of the flow rate and horsepower to within 51 was obtained.
Topics: Mechanical engineering, Axial turbine, Performance prediction, Off-design performance
321
321
Jul 10, 2010
07/10
by
ASTA, A
texts
eye 321
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comment 1
DIFFERENT TYPES OF ELECTRICAL GENERATORS ARE REVIEWED THAT CAN BE USED WITH WIND ENERGY. A SET IS DESCRIBED THAT IS COMPRISED OF A GENERATOR SUPPLIED BY A SUITABLE TYPE OF EXCITATION AND A MERCURY-VAPOR INVERTER CAPABLE OF INCORPORATION IN A THREE-PHASE NETWORK WITH CONSTANT VOLTAGE AND FREQUENCY, PROVIDED WITH RESERVOIRS, BY A FIXED-PITCH AIR MOTOR WITHOUT A SPEED REGULATOR. EXPERIMENTAL RESULTS OBTAINED WITH SUCH A SET ARE REPORTED.
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Topics: ANALYSIS (MATHEMATICS), PERFORMANCE PREDICTION, SUPERSONIC NOZZLES, COMPRESSING, EXPANSION,...
The purpose of this study is to determine if the Navy's system of assigning personnel to the Hull Maintenance Technician rating can be enhanced. The technique used is a multivariate model with subjectively defined categories of 'success' and 'failure' as criterion variables. Biographical data available at the time of enlistment are used as predictor variables. Two independent models were created using available data on personnel entering the Navy in 1976, 1977 and 1978. The models were...
Topics: Management, enlisted performance prediction model, hull technicians, predicting enlisted performance
337
337
Jul 11, 2010
07/10
by
Armaly, B. F
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eye 337
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The rate of heat transfer to the heat shield of a Jupiter probe has been estimated to be one order of magnitude higher than any previously experienced in an outer space exploration program. More than one-third of this heat load is due to an emission of continuum radiation from atoms and ions. The existing computer code for calculating the continuum contribution to the total load utilizes a modified version of Biberman's approximate method. The continuum radiation absorption cross sections of a...
Topics: LIQUID OXYGEN, SEALS (STOPPERS), TURBINE PUMPS, FLUID FLOW, LEAKAGE, PERFORMANCE PREDICTION
251
251
Jun 9, 2011
06/11
by
Burg, Cecile M.; Hill, Geoffrey A.; Brown, Sherilyn A.; Geiselhart, Karl A
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eye 251
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The Systems Analysis Branch at NASA Langley Research Center has investigated revolutionary Propulsion Airframe Aeroacoustics (PAA) technologies and configurations for a Blended-Wing-Body (BWB) type aircraft as part of its research for NASA s Quiet Aircraft Technology (QAT) Project. Within the context of the long-term NASA goal of reducing the perceived aircraft noise level by a factor of 4 relative to 1997 state of the art, major configuration changes in the propulsion airframe integration...
Topics: RELIABILITY ANALYSIS, FAILURE MODES, PERFORMANCE PREDICTION, PYROTECHNICS, COSTS, MECHANICAL...
Supercomputers capable of performing extremely high speed computation nave been proposed, which are based on an architecture known as data flow. Application of a Petri net-based methodology is used to evaluate the performance attainable by such an architecture. The architecture evaluated is MIT's cell block data flow architecture which is being developed to execute the applicative programming language VAL. Results Show that for the data flow architecture to achieve its goal of high speed...
Topics: Computer science, data flow, dataflow, computer performance evaluation, computer performance...
581
581
Jul 11, 2010
07/10
by
Somers, D. M
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eye 581
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An exploratory investigation was performed in the Langley low-turbulence pressure tunnel to determine the effect of a plastic coating on the profile drage of a practical-metal-construction sailplaine airfoil. The mode was tested with three surface configurations: (1) filled, painted, and sanded smooth; (2) rough bare metal; and (3) plastic-coated. The investigation was conducted at Reynolds numbers based on airfoil chord of 1,100,000, 2,200,000, and 3,300,000 at a constant Mach number of 0.10....
Topics: PROPELLER EFFICIENCY, TURBOSHAFTS, ESTIMATES, LOADS (FORCES), PERFORMANCE PREDICTION, SCALING LAWS,...
329
329
Jun 27, 2010
06/10
by
Robins, A. W
texts
eye 329
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comment 0
No Abstract Available
Topics: AIRCRAFT CONFIGURATIONS, FUSELAGES, SIDE INLETS, WIND TUNNEL STABILITY TESTS, PERFORMANCE PREDICTION
424
424
Jul 12, 2010
07/10
by
Carbee, R.; Gardner, P.; Ryan, H.; Williams, O
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eye 424
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comment 0
No Abstract Available
Topics: SATURN 1 LAUNCH VEHICLES, SPACECRAFT GUIDANCE, ERROR ANALYSIS, PERFORMANCE PREDICTION, SYSTEMS...
480
480
Jun 21, 2010
06/10
by
GORYNYA, A. A
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eye 480
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OBSERVATIONAL DATA AND ASTRONOMICAL INSTRUMENTS FOR ANNULAR SOLAR ECLIPSE
Topics: APPROACH INDICATORS, LANDING AIDS, PERFORMANCE PREDICTION, INFRARED DETECTORS, OPTICAL SCANNERS,...
324
324
Jun 1, 2011
06/11
by
Acker, Loren W.; Kleinknecht, Kenneth S
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eye 324
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As part of a program requested by the Bureau of Aeronautics, Navy Department, flight and ground investigations have been made on an exhaust-ejector installation in a twin-engine airplane. The exhaust ejectors were designed to increase the cooling-air flow through the engine and were installed in the left nacelle. The right engine was left in its standard configuration with an exhaust collector ring. The cooling-air pressure drop across the engine and the cylinder temperatures were measured in...
Topics: COMPUTATIONAL GRIDS, SCHEDULING, TIME FUNCTIONS, PARALLEL COMPUTERS, AIRBORNE/SPACEBORNE COMPUTERS,...
511
511
Jul 5, 2010
07/10
by
Franciscus, L. C.; Knip, G., Jr
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eye 511
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No Abstract Available
Topics: LAUNCH VEHICLES, LIQUID OXYGEN, LIQUID ROCKET PROPELLANTS, FLUORINE, PERFORMANCE PREDICTION,...
A computer program for the HP-41 series calculator is presented which predicts the rotor shaft horsepower required for tandem-rotor helicopters to a given set of helicopter parametrics and flight conditions. Three simplified analytical methods of calculating the induced power for tandem-rotor helicoptes were explored during the development of the program and their effect on the total shaft horsepower required was compared to actual test data. These comparisons as well as size and complexity...
Topics: Aeronautics, Helicopter, Computer program, Performance prediction, Power required, Tandem-rotor,...
210
210
Jun 26, 2010
06/10
by
Turner, R. C
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eye 210
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Design and characteristics of thermocouples consisting of flexible tape for improved attachment to temperature source
Topics: COMPUTER AIDED DESIGN, SPACE CHARGE, TRAVELING WAVE TUBES, COMPUTER PROGRAMS, PERFORMANCE PREDICTION
350
350
Jun 15, 2011
06/11
by
NON
texts
eye 350
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comment 0
No Abstract Available
Topics: ENGINE DESIGN, LIQUID PROPELLANT ROCKET ENGINES, COSTS, GROUND SUPPORT SYSTEMS, PERFORMANCE...
405
405
Jul 11, 2010
07/10
by
Sizer, J.; Brown, D. A.; Meyer, M. P.; Rust, R.; Skaggs, R. H.; Ulliman, J.; Gibson, J. C.; Stern, E.; Harrington, J., et al
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There are no author-identified significant results in this report.
Topics: ACCELERATION STRESSES (PHYSIOLOGY), HUMAN TOLERANCES, MICROGRAVITY, PERFORMANCE PREDICTION, PILOTS...
223
223
Jul 9, 2010
07/10
by
RUKAVISHNIKOV, N. N.; MOROZOV, G. I
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eye 223
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THE POSSIBILITIES WHICH HAVE OPENED UP FOR SCIENCE DUE TO EXPERIMENTS CARRIED OUT DIRECTLY IN SPACE ARE DISCUSSED, AS WELL AS RESULTS OBTAINED FROM THE FLIGHTS OF COSMONAUTS. THE COSMONAUT PROFESSION AND FLIGHT TRAINING ARE EXAMINED. FUTURE TRENDS IN THE DEVELOPMENT OF MANNED SPACE TECHNOLOGY ARE BRIEFLY INVESTIGATED.
Topics: AERODYNAMICS, AERONAUTICAL ENGINEERING, AIRCRAFT PERFORMANCE, FLIGHT TESTS, PERFORMANCE PREDICTION,...
415
415
Jul 11, 2010
07/10
by
Ipavich, F. M
texts
eye 415
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comment 0
It was found that the traditional first-order Compton-Getting effect, which relates particle distributions as observed in two frames of reference moving with constant relative velocity, is inadequate for the description of low energy particles (less than a few hundred keV/nucleon) in the solar system. An exact procedure is given for recovering both isotropic and anisotropic distributions in the solar wind frame from observations made in a spacecraft frame. The method was illustrated by...
Topics: LAGEOS (SATELLITE), OPTICAL MEASUREMENT, TEMPERATURE EFFECTS, VIBRATION TESTS, DESIGN ANALYSIS,...
215
215
Jul 6, 2010
07/10
by
MOSHKOV, V. N.; ZHURAVLEVA, A. I
texts
eye 215
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SUMMARIES ARE PRESENTED ON EXPERIENCE GATHERED FROM THE PRACTICE OF EXERCISE THERAPY IN PATIENTS HAVING DIVERSE FORMS OF OCCLUSIVE LESIONS OF ARTERIES AND VEINS AND FUNCTIONAL VASCULAR DISORDERS. EMPHASIS IS PLACED ON THE FACT THAT THE STUDY OF THERAPEUTIC EXERCISE METHOD REPOSES ON THE KNOWLEDGE OF CLINICAL ANGIOLOGY. OBSERVATIONS SHOWED AN IMPROVEMENT IN THE CARDIAC FUNCTION, PERIPHERAL CIRCULATION, ALONG WITH AN INCREASED PHYSICAL WORK CAPACITY OF THE PATIENTS, WHICH SUGGEST RECOMMENDING...
Topics: SPACE POWER REACTORS, STRUCTURAL DESIGN, THERMOELECTRIC GENERATORS, LIQUID METAL COOLED REACTORS,...
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1.0K
Jul 11, 2010
07/10
by
NON
texts
eye 1,031
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comment 0
No Abstract Available
Topics: AFTERBURNING, EXHAUST GASES, THRUST AUGMENTATION, TURBOJET ENGINES, MATHEMATICAL MODELS, NUMERICAL...
485
485
May 23, 2011
05/11
by
Kim, Soojin; Myerson, Allan S
texts
eye 485
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The crystal growth rates of NH4H2PO4, KH2PO4, (NH4)2SO4, KAl(SO4)2 central dot 12H2O, NaCl, and glycine and the nucleation rates of KBr, KCl, NaBr central dot 2H2O, (NH4)2Cl, and (NH4)2SO4 were expressed in terms of the fundamental driving force of crystallization calculated from the activity of supersaturated solutions. The kinetic parameters were compared with those from the commonly used kinetic expression based on the concentration difference. From the viewpoint of thermodynamics, rate...
Topics: CODING, BINARY CODES, WHITE NOISE, PHASE MODULATION, PERFORMANCE PREDICTION, RANDOM NOISE, FADING,...
216
216
Jun 3, 2011
06/11
by
Ulbrich, Norbert; Boone, Alan R
texts
eye 216
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Data from the test of a large semispan model was used to perform a direct validation of a wall interference correction system for a transonic slotted wall wind tunnel. At first, different sets of uncorrected aerodynamic coefficients were generated by physically changing the boundary condition of the test section walls. Then, wall interference corrections were computed and applied to all data points. Finally, an interpolation of the corrected aerodynamic coefficients was performed. This...
Topics: POSEIDON SATELLITE, TOPEX, PERFORMANCE PREDICTION, NOISE MEASUREMENT, RADIO ALTIMETERS, LAUNCHING,...
471
471
Jul 9, 2010
07/10
by
BRUESER, P
texts
eye 471
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A NUMERICAL METHOD HAS BEEN DEVELOPED FOR ELLIPTICAL HERTZ CONTACT AREAS WHICH MAKES IT POSSIBLE TO CALCULATE THE PHENOMENA IN THE LUBRICATION GAP. CONSIDERING THE PRESSURE DEPENDENCE OF THE OIL VISCOSITY AND OIL DENSITY, THE SYSTEM OF EQUATIONS WHICH DESCRIBE THE PROBLEM ARE SOLVED TOGETHER. TWO DIFFERENT ITERATION METHODS PROVIDE THE DESIRED RESULTS FOR THE INLET ZONE AND FOR THE HERTZ REGION PROPER. A TEST STAND AND A SUITABLE MEASUREMENT METHOD HAVE BEEN DEVELOPED FOR EXPERIMENTALLY...
Topics: AERODYNAMIC CHARACTERISTICS, PERFORMANCE PREDICTION, PROPELLER BLADES, APPLICATIONS OF MATHEMATICS,...
542
542
Jul 11, 2010
07/10
by
NON
texts
eye 542
favorite 0
comment 0
No Abstract Available
Topics: PROPULSION SYSTEM CONFIGURATIONS, THRUST AUGMENTATION, TURBOJET ENGINES, ENGINE DESIGN, EQUIPMENT...
338
338
Jul 26, 2010
07/10
by
Holcomb, Lee B.; Dibattista, John D.; Montemerlo, Melvin D.; Sokoloski, Martin; Wasicko, Richard; Grumm, Richard; Mcgreevy, Michae
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eye 338
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comment 0
No Abstract Available
Topics: ARTIFICIAL SATELLITES, REENTRY PHYSICS, REENTRY VEHICLES, TRAJECTORY ANALYSIS, GLIDING, NUMERICAL...
429
429
Jul 5, 2010
07/10
by
Evans, D. C.; Wolfmeyer, G. W
texts
eye 429
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The constant-inside-diameter flowpath was scaled for testing in an existing turbine test facility. Blading detailed design is discussed, and design data are summarized. Predicted performance maps are presented. Steady-state stresses and vibratory behavior are discussed and the results of the mechanical design analysis are presented.
Topics: PYROTECHNICS, SHOCK FRONTS, SHOCK TESTS, SIMULATION, CONFERENCES, PERFORMANCE PREDICTION, SHOCK...
The goal is location-independent computing. Implementing a set of services to satisfy this goal, build upon the GLOBUS toolkit services, and implementing with OGSA. Current status includes: Event service, Job manager, Resource selector and Broker, Next versions in development.Development includes: Monitoring and testing, Portability manager, Performance prediction, Dynamic accounting, and MDS evaluation.
Topics: NASA Technical Reports Server (NTRS), PERFORMANCE PREDICTION, TASKS, COMPUTERS, SELECTORS, POSITION...
All the institutions strive to find a student who is the best possible fit for their institute. They look forward to recruiting students who have the highest potential to succeed. Most of them are looking into their previous scores for making the recruiting decision. That does not always work out well for the institute, because past performance does not always prove future success. A machine learning model could solve this problem. Machine learning algorithms aim to discover hidden knowledge...
Topics: Educational institute, student performance prediction, predictive models, predictive algorithms and...
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231
Jun 27, 2010
06/10
by
Mayhue, R. J
texts
eye 231
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comment 0
No Abstract Available
Topics: SURVEYOR PROJECT, SYSTEMS ANALYSIS, SYSTEMS ENGINEERING, ENVIRONMENTAL TESTS, MISSION PLANNING,...
184
184
Jun 27, 2010
06/10
by
Souffrin, S
texts
eye 184
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comment 0
No Abstract Available
Topics: AIR COOLING, ENGINE INLETS, TURBOJET ENGINES, ENGINE TESTS, HIGH TEMPERATURE, PERFORMANCE...
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666
Jul 12, 2010
07/10
by
NON
texts
eye 666
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comment 0
No Abstract Available
Topics: NOVA LAUNCH VEHICLES, PROPULSION SYSTEM CONFIGURATIONS, SOLID PROPELLANT ROCKET ENGINES,...
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984
Jun 21, 2010
06/10
by
NON
texts
eye 984
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comment 0
No Abstract Available
Topics: FEEDBACK CONTROL, NONLINEAR SYSTEMS, OPTIMAL CONTROL, APPROXIMATION, HAMILTON-JACOBI EQUATION,...
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223
Jul 11, 2010
07/10
by
RAYNAUD, G
texts
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INSTRUMENT PANEL COMPONENT CONSISTING OF A CATHODE SCREEN ABLE TO DISPLAY THE MAIN FLIGHT PARAMETERS IS DESCRIBED. THE WAVELENGTHS OF THE THREE COLORS USED AND THEIR BRIGHTNESS AND CONTRAST UNDER VARYING INTENSITIES OF AMBIENT ILLUMINATION ARE GIVEN. IT IS SHOWN THAT THE COMPACTNESS OF THE SCREEN AND THE FACT THAT THE DATA ARE GIVEN IN PREDIGESTED FORM GREATLY SIMPLIFY THE TASK OF COLLECTING INFORMATION.
Topics: MEASURING INSTRUMENTS, RELIABILITY ENGINEERING, SAFETY MANAGEMENT, TECHNOLOGY UTILIZATION,...
214
214
May 29, 2011
05/11
by
Perlwitz, Jan; Tegen, Ina; Miller, Ron L
texts
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The sensitivity of the soil dust aerosol cycle to the radiative forcing by soil dust aerosols is studied. Four experiments with the NASA/GISS atmospheric general circulation model, which includes a soil dust aerosol model, are compared, all using a prescribed climatological sea surface temperature as lower boundary condition. In one experiment, dust is included as dynamic tracer only (without interacting with radiation), whereas dust interacts with radiation in the other simulations. Although...
Topics: PRINCIPAL COMPONENTS ANALYSIS, PATTERN RECOGNITION, TEXTURES, CLASSIFICATIONS, SYNTHESIS...
The final report of a High Energy Upper Stage Restartable Solid (HEUS-RS) Applications Study is presented. The material deals with launch program cost comparisons associated with meeting NASA mission model requirements with several different launch vehicle approaches.
Topics: NASA Technical Reports Server (NTRS), COSTS, RESTARTABLE ROCKET ENGINES, LAUNCHING, PERFORMANCE...
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183
May 31, 2011
05/11
by
Ogbuji, L. U. J. T.; Yun, H. M.; DiCarlo, J
texts
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Pesting remains a major obstacle to the application of SiC/SiC composites in engine service and selective degradation of the boron nitride interphase at intermediate temperatures is of primary concern. However, significant progress has been made on interphase improvement recently and we now know more about the phenomenon and ways to suppress it. By screening SiC/BN/SiC materials through characterization of strength and microstructures after exposure in a burner rig, some factors that control...
Topics: PERFORMANCE PREDICTION, BOOSTER ROCKET ENGINES, CHARTS, PROPELLANTS, CIRCULAR ORBITS, ERRORS,...
308
308
Jun 21, 2010
06/10
by
Onufriyev, A. T
texts
eye 308
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Equations for semiempircal theory of turbulent transport
Topics: FLIGHT TESTS, PERFORMANCE PREDICTION, VERTICAL TAKEOFF AIRCRAFT, WIND TUNNEL MODELS, AERODYNAMIC...
543
543
May 31, 2011
05/11
by
Reynolds, Anthony P
texts
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Material constitutive properties, which describe the mechanical behavior of a material under loading, are vital to the design and implementation of engineering materials. For homogeneous materials, the standard process for determining these properties is the tensile test, which is used to measure the material stress-strain response. However, a majority of the applications for engineering materials involve the use of heterogeneous materials and structures (i.e. alloys, welded components) that...
Topics: DISTRIBUTED MEMORY, PERFORMANCE PREDICTION, ARCHITECTURE (COMPUTERS), COMPILERS, COMPUTATIONAL...
253
253
Jun 13, 2011
06/11
by
Bartoszyk, Andrew; Johnston, John; Kaprielian, Charles; Kuhn, Jonathan; Kunt, Cengiz; Rodini, Benjamin; Young, Danie
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Contents include the following: JWST/ISIM introduction. Design and analysis challenges for ISIM bonded joints. JWST/ISIM joint designs. Bonded joint analysis. Finite element modeling. Failure criteria and margin calculation. Analysis/test correlation procedure. Example of test data and analysis.
Topics: LIQUID HYDROGEN, CAVITATION FLOW, VELOCITY DISTRIBUTION, PRESSURE MEASUREMENT, PERFORMANCE...
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345
Jun 11, 2011
06/11
by
Mangalam, Sivaramakrishnan; Meyers, James F.; Dagenhart, John R.; Harvey, William D
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Laser velocimetry (LV) was used to study the nature of laminar separation bubbles in the concave region of a 1.83-meter airfoil model which was tested in the NASA Langley Low Turbulence Pressure Tunnel. Three component, coincident data from LV measurements including histograms of particle velocity, mean velocity profiles, turbulence intensity, and Reynolds stresses within the shear layer were used to determine the locations of laminar separation, transition, and turbulent reattachment....
Topics: ASTRONOMICAL OBSERVATORIES, GEOPHYSICAL OBSERVATORIES, PERFORMANCE PREDICTION, MANAGEMENT SYSTEMS,...
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271
May 21, 2011
05/11
by
NON
texts
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A pulse phase locked loop system according to the present invention is described. A frequency generator such as a voltage controlled oscillator (VCO) generates an output signal and a reference signal having a frequency equal to that of the output signal. A transmitting gate gates the output frequency signal and this gated signal drives a transmitting transducer which transmits an acoustic wave through a material. A sample/hold samples a signal indicative of the transmitted wave which is...
Topics: FAULT TOLERANCE, MATHEMATICAL MODELS, MULTIPROCESSING (COMPUTERS), PERFORMANCE PREDICTION,...
392
392
Jun 2, 2011
06/11
by
Perko, Kenneth; Dod, Louis; Demas, Joh
texts
eye 392
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The recent launch and successful orbiting of the EO-1 Satellite has provided an opportunity to validate the performance of a newly developed X-Band transmit-only phased array aboard the satellite. This paper will compare results of planar near-field testing before and after spacecraft installation as well as on-orbit pattern characterization. The transmit-only array is used as a high data rate antenna for relaying scientific data from the satellite to earth stations. The antenna contains...
Topics: AUXILIARY PROPULSION, OXYGEN-HYDROCARBON ROCKET ENGINES, IGNITERS, ENGINE DESIGN, HEAT TRANSFER,...
The active optics concept using a thin deformable mirror has been successfully demonstrated using a 30 in. diameter, 1/2 in. thick mirror and a 61 point matrix of forces for alignment. Many of the problems associated with the design, fabrication, and launch of large aperture diffraction-limited astronomical telescopes have been resolved and experimental data created that can provide accurate predictions of performance in orbit.
Topics: NASA Technical Reports Server (NTRS), DEFORMATION, MIRRORS, OPTICS, DIFFRACTION, PERFORMANCE...
An infrared detector was fabricated to determine the feasibility of atmospheric sounding from synchronous orbit for water vapor and carbon dioxide. The device was extensively tested both before and after a 24-hour soak at 50 C and relative humidity of 95 percent. No degradation in performance as a result of the soak was observed. The device contains a single photoconductive HgCdTe element designed to operate in the six to fifteen micron region.
Topics: NASA Technical Reports Server (NTRS), INFRARED DETECTORS, PERFORMANCE PREDICTION,...
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May 31, 2011
05/11
by
Chandler, Frank; Scheiern, M.; Champion, R.; Mazurkivich, P
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To meet the goals for a next generation Reusable Launch Vehicle (RLV), a unique propulsion feed system concept was identified using crossfeed between the booster and orbiter stages that could reduce the Two-Stage-to-Orbit (TSTO) vehicle weight and Design, Development, Test and Evaluation (DDT&E) costs by approximately 25%, while increasing safety and reliability. The Main Propulsion System (MPS) crossfeed water demonstration test program addresses all activities required to reduce the risks...
Topics: GAS TURBINES, LIFE (DURABILITY), RELIABILITY ANALYSIS, WEIBULL DENSITY FUNCTIONS, PROBABILITY...
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208
Jun 26, 2010
06/10
by
Ramme, F. B
texts
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Dry electrode design with wire sandwiched between two flexible conductive discs for monitoring physiological responses
Topics: JET MIXING FLOW, SUPERSONIC JET FLOW, SUPERSONIC NOZZLES, NUMERICAL ANALYSIS, PERFORMANCE...
