Internet Archive Search: mediatype:texts

Search the history of over 502 billion pages on the Internet.

Featured

All Texts This Just In Smithsonian Libraries FEDLINK (US) Genealogy Lincoln Collection Additional Collections

eBooks & Texts

Top

American Libraries Canadian Libraries Universal Library Shareware CD-ROMs Community Texts Project Gutenberg Biodiversity Heritage Library

Open Library

Children's Library Kimberly Kubus

Featured

All Video This Just In Prelinger Archives Democracy Now! Occupy Wall Street TV NSA Clip Library

TV News

Top

Animation & Cartoons Arts & Music Community Video Computers & Technology Cultural & Academic Films Ephemeral Films Movies

Understanding 9/11

News & Public Affairs Spirituality & Religion Sports Videos Television Videogame Videos Vlogs Youth Media

Featured

All Audio This Just In Grateful Dead Netlabels Old Time Radio 78 RPMs and Cylinder Recordings

Live Music Archive

Top

Audio Books & Poetry Community Audio Computers & Technology Music, Arts & Culture News & Public Affairs Non-English Audio Podcasts

Librivox Free Audiobook

Radio Programs Spirituality & Religion Malyevados

Featured

All Software This Just In Old School Emulation MS-DOS Games Historical Software Classic PC Games Software Library

Internet Arcade

Top

Community Software MS-DOS APK Software Sites Tucows Software Library Vintage Software Vectrex

Console Living Room

Atari 2600 Magnavox Odyssey 2 Bally Astrocade Sega Genesis Sega Game Gear Atari 7800 Sega Master System

Featured

All Image This Just In Flickr Commons Occupy Wall Street Flickr Cover Art USGS Maps

Metropolitan Museum

Top

NASA Images Solar System Collection Ames Research Center

Brooklyn Museum

Search

Share
Favorite

SHOW DETAILS

SORT BY

RELEVANCE

CREATOR

0 0.0

NASA Technical Reports Server (NTRS) 20100028135: NASA Tech Briefs, Summer 1984. Volume 8, No. 4

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

Topics include: NASA TU Services: Technology Utilization services that can assist you in learning about and applying NASA technology. New Product Ideas: A summary of selected innovations of value to manufacturers for the development of new products; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Science.
Topics: NASA Technical Reports Server (NTRS), TECHNOLOGY UTILIZATION, CIRCUITS, NASA PROGRAMS, LIFE...

The Godane Inbox

1 1.0

NASA Technical Reports Server (NTRS) 20100028133: NASA Tech Briefs, Spring 1984. Volume 8, No. 3

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 1

favorite 0

comment 0

Topics include: NASA TU Services: Technology Utilization services that can assist you in learning about and applying NASA technology. New Product Ideas: A summary of selected innovations of value to manufacturers for the development of new products; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.
Topics: NASA Technical Reports Server (NTRS), PRODUCT DEVELOPMENT, NASA PROGRAMS, LIFE SCIENCES, PHYSICAL...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19960009113: Phase 2 development of Great Lakes algorithms for Nimbus-7 coastal zone color scanner

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

A series of experiments have been conducted in the Great Lakes designed to evaluate the application of the NIMBUS-7 Coastal Zone Color Scanner (CZCS). Atmospheric and water optical models were used to relate surface and subsurface measurements to satellite measured radiances. Absorption and scattering measurements were reduced to obtain a preliminary optical model for the Great Lakes. Algorithms were developed for geometric correction, correction for Rayleigh and aerosol path radiance, and...
Topics: NASA Technical Reports Server (NTRS), ALGORITHMS, ATMOSPHERIC CORRECTION, COASTAL ZONE COLOR...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19920020773: ATLAS 1: Encountering Planet Earth

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

Several NASA science programs examine the dynamic balance of sunlight, atmosphere, water, land, and life that governs Earth's environment. Among these is a series of Space Shuttle-Spacelab missions, named the Atmospheric Laboratory for Applications and Science (ATLAS). During the ATLAS missions, international teams of scientists representing many disciplines combine their expertise to seek answers to complex questions about the atmospheric and solar conditions that sustain life on Earth. The...
Topics: NASA Technical Reports Server (NTRS), CLIMATE CHANGE, EARTH ATMOSPHERE, EARTH OBSERVATIONS (FROM...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19900019238: Energy Efficient Engine combustor test hardware detailed design report

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The Energy Efficient Engine (E3) Combustor Development effort was conducted as part of the overall NASA/GE E3 Program. This effort included the selection of an advanced double-annular combustion system design. The primary intent was to evolve a design which meets the stringent emissions and life goals of the E3 as well as all of the usual performance requirements of combustion systems for modern turbofan engines. Numerous detailed design studies were conducted to define the features of the...
Topics: NASA Technical Reports Server (NTRS), ACEE PROGRAM, COMBUSTION, COMBUSTION CHAMBERS, COMBUSTION...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19900009048: Research on a two-dimensional inlet for a supersonic V/STOL propulsion system. Appendix A

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The inlet system performance requirements associated with supersonic V/STOL aircraft place extreme demands on the inlet designer. The present effort makes maximum use of flow improvement techniques, proven for high subsonic maneuvering flight and adapts them to the critical static and low speed/high angle-of-attack flight regime of the supersonic V/STOL aircraft. A description of the aerodynamic design, model characteristics, data analysis, discussion, and conclusions concerning the most...
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT DESIGN, DESIGN ANALYSIS, INLET FLOW, PERFORMANCE...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19880013063: NIMBUS-7 CZCS. Coastal Zone Color Scanner Imagery for Selected Coastal Regions. North America - Europe. South America - Africa - Antarctica. Level 2 Photographic Product

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The Nimbus-7 Coastal Zone Color Scanner (CZCS) is the first spacecraft instrument devoted to the measurement of ocean color. Although instruments on other satellites have sensed ocean color, their spectral bands, spatial resolution, and dynamic range were optimized for geographical or meteorological use. In the CZCS, every parameter is optimized for use over water to the exclusion of any other type of sensing. The signal-to-noise ratios in the spectral channels sensing reflected solar radiance...
Topics: NASA Technical Reports Server (NTRS), COASTAL ZONE COLOR SCANNER, MULTISPECTRAL BAND SCANNERS,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19880004684: Structural tests and development of a laminar flow control wing surface composite chordwise joint

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The dramatic increases in fuel costs and the potential for periods of limited fuel availability provided the impetus to explore technologies to reduce transport aircraft fuel consumption. NASA sponsored the Aircraft Energy Efficiency (ACEE) program beginning in 1976 to develop technologies to improve fuel efficiency. The Lockheed-Georgia Company accomplished under NAS1-16235 Laminar-Flow-Control (LFC) Wing Panel Structural Design and Development (WSSD); design, manufacturing, and testing...
Topics: NASA Technical Reports Server (NTRS), BOUNDARY LAYER CONTROL, COMPOSITE STRUCTURES, LAMINAR...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19880003080: A 0.15-scale study of configuration effects on the aerodynamic interaction between main rotor and fuselage

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

Hover and forward flight tests were conducted to investigate the mutual aerodynamic interaction between the main motor and fuselage of a conventional helicopter configuration. A 0.15-scale Model 222 two-bladed teetering rotor was combined with a 0.15-scale model of the NASA Ames 40x80-foot wind tunnel 1500 horsepower test stand fairing. Configuration effects were studied by modifying the fairing to simulate a typical helicopter forebody. Separation distance between rotor and body were also...
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC INTERFERENCE, AIRCRAFT CONFIGURATIONS, FUSELAGES,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19870019183: Advanced manufacturing development of a composite empennage component for L-1011 aircraft. Phase 3: Production readiness verification testing

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

Twenty-two specimens of each of two key structural elements of the Advance Composite Vertical Fin (ACVF) were fabricated and tested. One element represented the front spar at the fuselage attachment area and the other element represented the cover at the fuselage joint area. Ten specimens of each element were selected for static testing. The coefficient of variation resulting from the tests was 3.28 percent for the ten cover specimens and 6.11 percent for the ten spar specimens, which compare...
Topics: NASA Technical Reports Server (NTRS), COMPOSITE STRUCTURES, DURABILITY, ENVIRONMENTAL TESTS, FINS,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19870012416: Development of laminar flow control wing surface composite structures

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The dramatic increases in fuel costs and the potential for periods of limited fuel availability provided the impetus to explore technologies to reduce transport aircraft fuel consumption. NASA sponsored the Aircraft Energy Efficiency (ACEE) program beginning in 1976 to develop technologies to improve fuel efficiency. This report documents the Lockheed-Georgia Company accomplishments under NAS1-16235 LFC Laminar-Flow-Control Wing Panel Structural Design And Development (WSSD); Design,...
Topics: NASA Technical Reports Server (NTRS), ACEE PROGRAM, BOUNDARY LAYER CONTROL, COMPOSITE STRUCTURES,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19870010954: Advanced composite combustor structural concepts program

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

An analytical study was conducted to assess the feasibility of and benefits derived from the use of high temperature composite materials in aircraft turbine engine combustor liners. The study included a survey and screening of the properties of three candidate composite materials including tungsten reinforced superalloys, carbon-carbon and silicon carbide (SiC) fibers reinforcing a ceramic matrix of lithium aluminosilicate (LAS). The SiC-LAS material was selected as offering the greatest near...
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT ENGINES, CARBON-CARBON COMPOSITES, CERAMIC MATRIX...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19870010083: Production of large-particle-size monodisperse latexes

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The research program achieved two objectives: (1) it has refined and extended the experimental techniques for preparing monodisperse latexes in quantity on the ground up to a particle diameter of 10 microns; and (2) it has demonstrated that a microgravity environment can be used to grow monodisperse latexes to larger sizes, where the limitations in size have yet to be defined. The experimental development of the monodisperse latex reactor (MLR) and the seeded emulsion polymerizations carried...
Topics: NASA Technical Reports Server (NTRS), LATEX, POLYMERIZATION, PROCESS CONTROL (INDUSTRY), SPACE...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19870004402: AgRISTARS

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

An introduction to the overall AgRISTARS program, a general statement on progress, and separate summaries of the activities of each project, with emphasis on the technical highlights are presented. Organizational and management information on AgRISTARS is included in the appendices, as is a complete bibliography of publication and reports.
Topics: NASA Technical Reports Server (NTRS), AGRICULTURE, AGRISTARS PROJECT, CROP INVENTORIES, LAND USE,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19870002597: LANDSAT-D program. Volume 2: Ground segment

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

Raw digital data, as received from the LANDSAT spacecraft, cannot generate images that meet specifications. Radiometric corrections must be made to compensate for aging and for differences in sensitivity among the instrument sensors. Geometric corrections must be made to compensate for off-nadir look angle, and to calculate spacecraft drift from its prescribed path. Corrections must also be made for look-angle jitter caused by vibrations induced by spacecraft equipment. The major components of...
Topics: NASA Technical Reports Server (NTRS), APPLICATIONS PROGRAMS (COMPUTERS), DIGITAL DATA, GEOMETRIC...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19870002362: Vortex Flap Technology: a Stability and Control Assessment

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

A comprehensive low-speed wind tunnel investigation was performed of leading edge vortex flaps applied to representative aircraft configurations. A determination was made of the effects of analytically- and empirically-designed vortex flaps on the static longitudinal and lateral-directional aerodynamics, stability, and control characteristics of fighter wings having leading-edge sweep angles of 45 to 76.5 degrees. The sensitivity to several configuration modifications was assessed, which...
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC STABILITY, FIGHTER AIRCRAFT, VORTEX BREAKDOWN,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19870002317: Recent Experiences in Multidisciplinary Analysis and Optimization, part 2

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The papers presented at the NASA Symposium on Recent Experiences in Multidisciplinary Analysis and Optimization held at NASA Langley Research Center, Hampton, Virginia, April 24 to 26, 1984 are given. The purposes of the symposium were to exchange information about the status of the application of optimization and the associated analyses in industry or research laboratories to real life problems and to examine the directions of future developments.
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT DESIGN, COMPUTER AIDED DESIGN, HELICOPTERS,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19870002284: Recent Experiences in Multidisciplinary Analysis and Optimization, part 1

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

Papers presented at the NASA Symposium on Recent Experiences in Multidisciplinary Analysis and Optimization held at NASA Langley Research Center, Hampton, Virginia April 24 to 26, 1984 are given. The purposes of the symposium were to exchange information about the status of the application of optimization and associated analyses in industry or research laboratories to real life problems and to examine the directions of future developments. Information exchange has encompassed the following: (1)...
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT DESIGN, COMPUTER AIDED DESIGN, CONFERENCES, DESIGN...

The Godane Inbox

4 4.0

NASA Technical Reports Server (NTRS) 19870001747: Turbine Engine Hot Section Technology, 1984

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 4

favorite 0

comment 0

Presentations were made concerning the hot section environment and behavior of combustion liners, turbine blades, and waves. The presentations were divided into six sessions: instrumentation, combustion, turbine heat transfer, structural analysis, fatigue and fracture, and surface properties. The principal objective of each session was to disseminate research results to date, along with future plans. Topics discussed included modeling of thermal and fluid flow phenomena, structural analysis,...
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT ENGINES, AIRFOILS, CONFERENCES, LIFE (DURABILITY),...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19870001711: Hot section viewing system

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

This report covers the development and testing of a prototype combustor viewing system. The system allows one to see and record images from the inside of an operating gas turbine combustor. The program proceeded through planned phases of conceptual design, preliminary testing to resolve problem areas, prototype design and fabrication, and rig testing. Successful tests were completed with the viewing system in the laboratory, in a high pressure combustor rig, and on a Pratt and Whitney PW20307...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION CHAMBERS, GAS TURBINE ENGINES, HOT SURFACES,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19870001671: The 20 GHz GaAs monolithic power amplifier module development

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

The development of a 20 GHz GaAs FET monlithic power amplifier module for advanced communication applications is described. Four-way power combing of four 0.6 W amplifier modules is used as the baseline approach. For this purpose, a monolithic four-way traveling-wave power divider/combiner was developed. Over a 20 GHz bandwidth (10 to 30 GHz), an insertion loss of no more than 1.2 dB was measured for a pair of back-to-back connected divider/combiners. Isolation between output ports is better...
Topics: NASA Technical Reports Server (NTRS), FIELD EFFECT TRANSISTORS, GALLIUM ARSENIDES, INTEGRATED...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19860067708: Solar-geophysical data number 482, October 1984. Part 1: (Prompt reports). Data for September 1984, August 1984 and late data

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

Topics: NASA Technical Reports Server (NTRS), DATA REDUCTION, GEOPHYSICS, IONOSPHERIC DISTURBANCES, SOLAR...

The Godane Inbox

1 1.0

NASA Technical Reports Server (NTRS) 19860022288: Spacecraft multibeam antenna system for 30/20 GHz

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 1

favorite 0

comment 0

The major technical tasks that led to the definitions of operational and demonstration multiple beam antenna (MBA) flight systems and a proof of concept model (POC) are described. Features of the POC Model and its measured performance are presented in detail. Similar MBA's are proposed for transmitting and receiving with the POC Model representing the 20 GHz transmitting antenna. This POC MBA is a dual shaped-surface reflector system utilizing a movable free array to simulate complete CONUS...
Topics: NASA Technical Reports Server (NTRS), DOWNLINKING, MULTIBEAM ANTENNAS, SATELLITE ANTENNAS,...

The Godane Inbox

3 3.0

NASA Technical Reports Server (NTRS) 19860019449: Experimental analyses of trailing edge flows

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 3

favorite 0

comment 0

An experimental study of several of the trailing edge and wake turbulence properties for a NACA 64A010 airfoil section was completed. The experiment was conducted at the Ohio State University Aeronautical and Astronautical Research Laboratory in the 6 inch X 22 inch transonic wind tunnel facility. The data were obtained at a free stream Mach number of 0.80 and a flow Reynolds number (based on chord length) of 5 million. The principle diagnostic tool was a dual-component laser Doppler...
Topics: NASA Technical Reports Server (NTRS), AIRFOILS, ANGLE OF ATTACK, INCIDENCE, TRAILING EDGES,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19860017926: Space station automation study: Automation requriements derived from space manufacturing concepts,volume 2

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

Automation reuirements were developed for two manufacturing concepts: (1) Gallium Arsenide Electroepitaxial Crystal Production and Wafer Manufacturing Facility, and (2) Gallium Arsenide VLSI Microelectronics Chip Processing Facility. A functional overview of the ultimate design concept incoporating the two manufacturing facilities on the space station are provided. The concepts were selected to facilitate an in-depth analysis of manufacturing automation requirements in the form of process...
Topics: NASA Technical Reports Server (NTRS), CHIPS (ELECTRONICS), CRYSTAL GROWTH, EQUIPMENT...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19860015569: Advanced on-site power plant development technology program

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

A 30-cell, full area short stack containing advanced cell features was tested for 2900 hours. A stack acid addition approach was selected and will be evaluated on the stack at 5000 hours test time. A brassboard inverter was designed and fabrication was initiated. Evaluation of this brassboard inverter will take place in 1984. A Teflon coated commercial heat exchanger was selected as the preferred approach for the acid condenser. A reformer catalyst with significantly less pressure drop and...
Topics: NASA Technical Reports Server (NTRS), CONTROL EQUIPMENT, ELECTRIC POWER PLANTS, ELECTROLYTES, FUEL...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19860015435: Designing a 25-kilowatt high frequency series resonant

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

The feasibility of processing 25 kW of power with a single, transistorized, 20 kHz, series resonant converter stage has been demonstrated by the successful design, development, fabrication, and testing of such a device. It employs four Westinghouse D7ST transistors in a full-bridge configuration and operates from a 250-to-350-Vdc input bus. The unit has an overall worst-case efficiency of 93.5% at its full rated output of 1000 V and 25 A dc. A solid-state dc input circuit breaker and...
Topics: NASA Technical Reports Server (NTRS), DESIGN ANALYSIS, FABRICATION, PERFORMANCE TESTS, RESONANCE,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19860014127: Low-cost single-crystal turbine blades, volume 2

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

The overall objectives of Project 3 were to develop the exothermic casting process to produce uncooled single-crystal (SC) HP turbine blades in MAR-M 247 and higher strength derivative alloys and to validate the materials process and components through extensive mechanical property testing, rig testing, and 200 hours of endurance engine testing. These Program objectives were achieved. The exothermic casting process was successfully developed into a low-cost nonproperietary method for producing...
Topics: NASA Technical Reports Server (NTRS), CASTING, CRYSTAL GROWTH, EXOTHERMIC REACTIONS, HEAT RESISTANT...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19860014095: Locally linearized longitudinal and lateral-directional aerodynamic stability and control derivaties for the X-29A aircraft

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The locally linearized longitudinal and lateral-directional aerodynamic stability and control derivatives for the X-29A aircraft were calculated for altitudes ranging from sea level to 50,000 ft, Mach numbers from 0.2 to 1.5, and angles of attack from -5 deg to 25 deg. Several other parameters were also calculated, including aerodynamic force and moment coefficients, control face position, normal acceleration, static margin, and reference angle of attack.
Topics: NASA Technical Reports Server (NTRS), ATTITUDE CONTROL, LATERAL STABILITY, LONGITUDINAL STABILITY,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19860013900: Free jet feasibility study of a thermal acoustic shield concept for AST/VCE application-dual flow. Comprehensive data report. Volume 1: Test nozzles and acoustic data

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

Acoustic and diagnostic data that were obtained to determine the influence of selected geometric and aerodynamic flow variables of coannular nozzles with thermal acoustic shields are summarized in this comprehensive data report. A total of 136 static and simulated flight acoustic test points were conducted with 9 scale-model nozzles The tested nozzles included baseline (unshielded), 180 deg shielded, and 360 deg shielded dual flow coannular plug configurations. The baseline configurations...
Topics: NASA Technical Reports Server (NTRS), ACOUSTIC MEASUREMENT, AERODYNAMIC FORCES, FEASIBILITY...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19860012346: Demonstration test of burner liner strain measuring system

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

A demonstration test was conducted for two systems of static strain measurement that had been shown to have potential for application jet engine combustors. A modified JT12D combustor was operated in a jet burner test stand while subjected simultaneously to both systems of instrumentation, i.e., Kanthal A-1 wire strain gages and laser speckle photography. A section of the burner was removed for installation and calibration of the wire gages, and welded back into the burner. The burner test rig...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION CHAMBERS, JET ENGINES, STRAIN GAGES, STRAIN...

The Godane Inbox

1 1.0

NASA Technical Reports Server (NTRS) 19860007796: The ninth Dr. Albert Plesman memorial lecture: The Future of Space Flight

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 1

favorite 0

comment 0

The history of space flight is reviewed and major NASA programs (Mercury, Gemini, Apollo, Skylab, Apollo-Soyuz, Science and Applications, Space Shuttle, Space Station) are summarized. Developments into the early 21st century are predicted.
Topics: NASA Technical Reports Server (NTRS), NASA SPACE PROGRAMS, SPACE FLIGHT, TRENDS, HISTORIES, SOYUZ...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19860001620: Advanced Gas Turbine (AGT) powertrain system development for automotive applications report

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

This report describes progress and work performed during January through June 1984 to develop technology for an Advanced Gas Turbine (AGT) engine for automotive applications. Work performed during the first eight periods initiated design and analysis, ceramic development, component testing, and test bed evaluation. Project effort conducted under this contract is part of the DOE Gas Turbine Highway Vehicle System Program. This program is oriented at providing the United States automotive...
Topics: NASA Technical Reports Server (NTRS), CERAMICS, DESIGN ANALYSIS, GAS TURBINE ENGINES, PERFORMANCE...

The Godane Inbox

1 1.0

NASA Technical Reports Server (NTRS) 19850026838: Langley aeronautics and space test highlights, 1984

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 1

favorite 0

comment 0

The role of the Langley Research Center is to perform basic and applied research necessary for the advancement of aeronautics and space flight, to generate new and advanced concepts for the accomplishment of related national goals, and to provide research advice, technological support, and assistance to other NASA installations, other government agencies, and industry. Some of the significant tests which were performed during calendar year 1984 in Langley test facilities are highlighted. The...
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT NOISE, FLIGHT SIMULATORS, NOISE REDUCTION, RESEARCH...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850025312: Middle Atmosphere Program. Handbook for MAP, volume 11

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

An overview is presented of the research activities and objectives of the middle atmosphere program (MAP). Status reports are presented of projects underway in the area of middle atmosphere climatology and atmospheric chemistry condensed minutes of MAP steering committee meetings are contained in this volume. Research recommendations for increased U.S. participation in the middle atmosphere program are given.
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC CHEMISTRY, ATMOSPHERIC COMPOSITION, ATMOSPHERIC...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19850022833: Space Station reference configuration description

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The data generated by the Space Station Program Skunk Works over a period of 4 months which supports the definition of a Space Station reference configuration is documented. The data were generated to meet these objectives: (1) provide a focal point for the definition and assessment of program requirements; (2) establish a basis for estimating program cost; and (3) define a reference configuration in sufficient detail to allow its inclusion in the definition phase Request for Proposal (RFP).
Topics: NASA Technical Reports Server (NTRS), CONFIGURATION MANAGEMENT, MISSION PLANNING, SPACE STATIONS,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850020584: An experimental investigation of the angular scattering and backscattering behaviors of the simulated clouds of the outer planets

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

A cryogenic, 50 liter volume Planetary Cloud Simulation Chamber has been constructed to permit the laboratory study of the cloud compositions which are likely to be found in the atmospheres of the outer planets. On the basis of available data, clouds composed of water ice, carbon dioxide, and liquid and solid ammonia and methane, both pure and in various mixtures, have been generated. Cloud microphysical observations have been permitted through the use of a cloud particle slide injector and...
Topics: NASA Technical Reports Server (NTRS), BACKSCATTERING, CLOUD CHAMBERS, CLOUD PHYSICS, PLANETARY...

The Godane Inbox

3 3.0

NASA Technical Reports Server (NTRS) 19850019951: Analysis of heat-transfer measurements from 2 AEDC wind tunnels on the Shuttle external tank

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 3

favorite 0

comment 0

Previous aerodynamic heating tests have been conducted in the AEDC/VKF Supersonic Wind Tunnel (A) to aid in defining the design thermal environment for the space shuttle external tank. The quality of these data has been under discussion because of the effects of low tunnel enthalpy and slow model injection rates. Recently the AEDC/VKF Hypersonic Wind Tunnel (C) has been modified to provide a Mach 4 capability that has significantly higher tunnel enthalpy with more rapid model injection rates....
Topics: NASA Technical Reports Server (NTRS), EXTERNAL TANKS, SPACE SHUTTLES, SUPERSONIC TEST APPARATUS,...

The Godane Inbox

0 0.0

NASA Technical Reports Server (NTRS) 19850019797: Ceramic applications in turbine engines

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 0

favorite 0

comment 0

The application of ceramic components to demonstrate improved cycle efficiency by raising the operating temperature of the existing Allison IGI 404 vehicular gas turbine engine is discussed. This effort was called the Ceramic Applications in Turbine Engines (CATE) program and has successfully demonstrated ceramic components. Among these components are two design configurations featuring stationary and rotating caramic components in the IGT 404 engine. A complete discussion of all phases of the...
Topics: NASA Technical Reports Server (NTRS), CERAMICS, ENGINE DESIGN, ENGINE PARTS, ENGINE TESTS, GAS...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850019671: The production of copper phthalocyanine and/or its derivatives

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

This document discusses the production of copper phthalocyanine and/or its derivatives, which are useful for dye pigments. The method described uses urea, a copper compound and/or a catalyst which have been suspended in an inert reaction medium. The copper compound, catalyst and urea fused and the reaction is performed by using the obtained fusion. The advantages of the invention are listed.
Topics: NASA Technical Reports Server (NTRS), CATALYSTS, CHEMICAL REACTIONS, COPPER, DYES, PHTHALOCYANIN,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850019531: Investigation of imaging and flight guidance concepts for rotorcraft zero visibility approach and landing

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

A simulation experiment to explore the use of an augmented pictorial display to approach and land a helicopter in zero visibility conditions was conducted in a fixed base simulator. A literature search was also conducted to determine related work. A display was developed and pilot in-the-loop evaluations were conducted. The pictorial display was a simulated, high resolution radar image, augmented with various parameters to improve distance and motion cues. Approaches and landings were...
Topics: NASA Technical Reports Server (NTRS), AIRBORNE RADAR APPROACH, AIRCRAFT GUIDANCE, HELICOPTERS,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850019271: A fast hidden line algorithm with contour option. M.S. Thesis

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

The JonesD algorithm was modified to allow the processing of N-sided elements and implemented in conjunction with a 3-D contour generation algorithm. The total hidden line and contour subsystem is implemented in the MOVIE.BYU Display package, and is compared to the subsystems already existing in the MOVIE.BYU package. The comparison reveals that the modified JonesD hidden line and contour subsystem yields substantial processing time savings, when processing moderate sized models comprised of...
Topics: NASA Technical Reports Server (NTRS), ALGORITHMS, COMPUTER GRAPHICS, CONTOURS, COMPUTER PROGRAMS,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850019009: Modeling the backscattering and transmission properties of vegetation canopies

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

Experimental measurements of canopy attenuation at 10.2 GHz (X-band) for canopies of wheat and soybeans, experimental observations of the effect upon the microwave backscattering coefficient (sigma) of free water in a vegetation canopy, and experimental measurements of sigma (10.2 GHz, 50 deg, VV and VH polarization) of 30 agricultural fields over the growing season of each crop are discussed. The measurements of the canopy attenuation through wheat independently determined the attenuation...
Topics: NASA Technical Reports Server (NTRS), BACKSCATTERING, CANOPIES (VEGETATION), CORN, KANSAS,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850018952: Elevated temperature biaxial fatigue

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

A three year experimental program for studying elevated temperature biaxial fatigue of a nickel based alloy Hastelloy-X has been completed. A new high temperature fatigue test facility with unique capabilities has been developed. Effort was directed toward understanding multiaxial fatigue and correlating the experimental data to the existing theories of fatigue failure. The difficult task of predicting fatigue lives for non-proportional loading was used as an ultimate test for various life...
Topics: NASA Technical Reports Server (NTRS), CORRELATION, FATIGUE (MATERIALS), HASTELLOY (TRADEMARK),...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850018683: Breakway friction and dynamic friction/wear measurements of various ceramic materials from 25 C (75 F) to 650 C (1200 F)

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

This report describes the results of a program designed to evaluate the breakaway friction and dynamic friction/wear characteristics of materials having potential for use as load bearing components in a high-performance high-temperature heavy duty diesel engine. Ten candidate materials were selected, six of which were evaluated under all possible material combinations as both stationary as well as moving breakaway specimens. The remaining materials were evaluated either in the static mode...
Topics: NASA Technical Reports Server (NTRS), CERAMICS, DIESEL ENGINES, FRICTION, LOADS (FORCES), WEAR,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850018650: Microstructures and properties of rapidly solidified alloys

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

The microstructure and properties of rapidly solidified aluminum alloys were researched. The effects of powder and flake chemistry and morphology and alternative consolidation processing parameters are being conducted. Samples of the powders being utilized were obtained for comprehensive metallurgical characterization. Seven aluminum alloys in the form of thin foils were studied by a variety of techniques including optical metallography, scanning electron microscope, and transmission electron...
Topics: NASA Technical Reports Server (NTRS), ALUMINUM ALLOYS, MICROSTRUCTURE, POWDER METALLURGY,...

The Godane Inbox

3 3.0

NASA Technical Reports Server (NTRS) 19850017616: Analysis of the Gran Desierto, Pinacte Region, Sonora, Mexico, via shuttle imaging radar

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 3

favorite 0

comment 0

The radar discriminability of geolian features and their geological setting as imaged by the SIR-A experiment is examined. The Gran Desierto and Pincate volcanio field of Sonora, Mexico was used to analyze the radar characteristics of the interplay of aeolian features and volcano terrain. The area in the Gran Desierto covers 4000 sq. km. and contains sand dunes of several forms. The Pincate volcanio field covers more than 2.000 sq. km. and consists primarily of basaltic lavas. Margins of the...
Topics: NASA Technical Reports Server (NTRS), MEXICO, RADAR IMAGERY, SHUTTLE IMAGING RADAR, SPACE...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850016855: Research and technology

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

Various research and technology activities at Ames Moffett and Ames Dryden are described. Highlights of these accomplishments indicate the Center's varied and highly productive research efforts for 1984. The research is divided into three subject areas, which are: Aeronautics, Life Science and Space Science and Applications.
Topics: NASA Technical Reports Server (NTRS), AERONAUTICAL ENGINEERING, AEROSPACE SYSTEMS, LIFE SCIENCES,...

The Godane Inbox

3 3.0

NASA Technical Reports Server (NTRS) 19850016438: Programmer/analyst workstation evaluation report

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 3

favorite 0

comment 0

The methodology and results of the programmer/analyst workstation evaluation undertaken at Computer Sciences Corporation under task assignment 80200 is presented.
Topics: NASA Technical Reports Server (NTRS), DATA BASES, HUMAN FACTORS ENGINEERING, MAN MACHINE SYSTEMS,...

The Godane Inbox

2 2.0

NASA Technical Reports Server (NTRS) 19850016209: Silicon-sheet and thin-film cell and module technology potential: Issue study

Aug 24, 2016 08/16

Aug 24, 2016 NASA Technical Reports Server (NTRS)

eye 2

favorite 0

comment 0

The development of high-efficiency low-cost crystalline silicon ribbon and thih-film solar cells for the energy national photovoltaics program was examined. The findings of an issue study conducted are presented. The collected data identified the status of the technology, future research needs, and problems experienced. The potentials of present research activities to meet the Federal/industry long-term technical goal of achieving 15 cents per kilowatt-hour levelized PV energy cost are...
Topics: NASA Technical Reports Server (NTRS), CRYSTALLINITY, FLAT PLATES, PHOTOVOLTAIC CELLS, SILICON,...

MORE RESULTS
Fetching more results

Featured

Top

Featured

Top

Featured

Top

Featured

Top

Featured

Top

Search

97,821 RESULTS

COLLECTION

TOPIC atoz

CREATOR

eye 0

favorite 0

comment 0

eye 1

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 2

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 2

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 0

favorite 0

comment 0

eye 4

favorite 0

comment 0

eye 2

favorite 0

comment 0

eye 2

favorite 0

comment 0

eye 0

favorite 0

97,821
RESULTS