WHERE ARE WE GOING IN SPACE
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Johnson, J. A.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Nasa's relay i still going strong news release no. 64-1
Relay satellite destruction failure, anticipated lifespan, and history of transmissions
RELAY SATELLITE↗
Where do we go from here /Ques/ - The designer's viewpoint
Ground wind and atmospheric turbulence effects on launch vehicles and ground support equipment
GROUND SUPPORT EQUIPMENT↗
A neighboring optimum feedback control scheme based on estimated time-to-go with application to re-entry flight paths
Neighboring optimum feedback control system for reentry flight paths
FLIGHT PATH↗
Why go to the outer planets
Scientific motivation for outer planets exploration covering solar system clues, atmosphere comparisons with earth, radiation and planetary radii measurement, etc
Eisenman, A. R.↗
Life prediction of turbine components: On-going studies at the NASA Lewis Research Center
An overview is presented of the many studies at NASA-Lewis that form the turbine component life prediction program. This program has three phases: (1) development of life prediction methods for major failure modes through materials studies, (2) evaluation and improvement of these methods through a variety of burner rig studies on simulated components in research engines and advanced rigs. These three phases form a cooperative, interdisciplinary program. A bibliography of Lewis publications on fatigue, oxidation and coatings, and turbine engine alloys is included.
Spera, D. A.↗
Utilizing Skylab data in on-going resources management programs in the state of Ohio
The author has identified the following significant results. The use of Skylab imagery for total area woodland surveys was found to be more accurate and cheaper than conventional surveys using aerial photo-plot techniques. Machine-aided (primarily density slicing) analyses of Skylab 190A and 190B color and infrared color photography demonstrated the feasibility of using such data for differentiating major timber classes including pines, hardwoods, mixed, cut, and brushland providing such analyses are made at scales of 1:24,000 and larger. Manual and machine-assisted image analysis indicated that spectral and spatial capabilities of Skylab EREP photography are adequate to distinguish most parameters of current, coal surface mining concern associated with: (1) active mining, (2) orphan lands, (3) reclaimed lands, and (4) active reclamation. Excellent results were achieved when comparing Skylab and aerial photographic interpretations of detailed surface mining features. Skylab photographs when combined with other data bases (e.g., census, agricultural land productivity, and transportation networks), provide a comprehensive, meaningful, and integrated view of major elements involved in the urbanization/encroachment process.
Baldridge, P. E.↗
What the next decade is going to bring
A record of a discussion among a number of the major managers of information systems within the U.S. Government is presented. The topics of discussion focus on assessing the past and present information systems with an emphasis on planning future projects to meet the changing needs of science and technology.
Source record↗
First down and goal to go
A 10 year game plan for transition to the operational system was developed in the State of Washington. The plan is to: examine the results of past demonstration projects to identify successful operational applications, take advantage of geographic information systems, and work toward reducing/eliminating constraints of the present system which inhibit operational use. Support for the LANDSAT program was demonstrated by sending a user representative to NOAA working in the development of a user oriented system. It is suggested that the state should reassess its position, by taking advantage of the past 8 years' experience, and coordinate efforts to enhance LANDSAT' advantages in a cost effective manner.
Little, G.↗
Software reliability modeling: Where are we and where should we be going?
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Musa, J.↗
First detection of the ground state JK = 1 sub 0 going to 0 sub 0 submillimeter transition of interstellar ammonia
The JK = 1 sub 0 approaching O sub 0 transition of ammonia at 572.5 GHz was detected in OMC-1 from NASA's Kuiper Airborne Observatory. The central velocity of the line (VLSR approximately = 9 km/s) indicates that it originates in the molecular cloud material, not the hot core. The derived filling factor of approximately 0.09 in a 2' beam implies a source diameter of approximately 35" if it is a single clump. This clump area is much larger than that derived from observations of the sub 1 inversion transition. The larger optical depth in the 1 sub 0 approaching 0 sub 0 transition (75-350) can account for the increased source area and linewidth as compared with those seen in the 1 sub 0 inversion transition.
Keene, J.↗
Fatigue and Fracture Branch: A compendium of recently completed and on-going research projects
This compendium of recently completed and ongoing research projects from the Fatigue and Fracture Branch at NASA Langley Research Center provides technical descriptions and key results of all such projects expected to lead to publication of significant findings. The common thread to all these studies is the application of fracture mechanics analyses to engineering problems in metals and composites, with particular emphasis on airframe structural materials. References to recent publications are included where appropriate.
Elber, W.↗
Photovoltaics - Where are we going?
The directions that will be followed for solar cell development, production and marketing are projected on the basis of experiences gained during the JPL's Flat-Plate Solar Array project. It is thought that a billion dollar market for Si ribbons can be established by 1990. Thin film technology will yield a product at $2 U.S./W at the end of the 1980s. R&D is growing more focused on central station photovoltaic generators, although the residential market may be the more suitable goal. The intermediate markets, e.g., schools, hospitals and shopping centers may be developed before the central stations.
Callaghan, W. T.↗
Thematic mapping of likely target areas for the occurence of cassiterite in the Serra do Mocambo (GO) granitic massifs using LANDSAT 2 digital imaging
The applicability of LANDSAT/MSS images, enhanced by computer derived techniques, as essential tools in mineral research was investigated and the Serra do Mocambo granitic massif was used as illustration. Given the peculiar factors founded in this area, orbital imagery permitted the delineation of potential target areas of mineralization occurrences, associated to albitized/greisenized types. Follow up prospection for primary tin deposits in this granitic massif should be restricted to the delineated areas which are less than 5% of the total superficial area of the massif.
Almeidofilho, R.↗
Where are We Going in Tethers
The state of the art of the tether in space science and in space operations is discussed. It is emphasized that space technology is not the continuation of aerodynamics, but rather is something fundamentally distinct. The tether is foreseen as a basic structural element for aerospace engineering in the future.
Colombo, G.↗
Planetary exploration: To boldly go - or what?
The direction of solar system exploration in the U.S. is examined. Planetary exploration missions from 1961-1976 are reviewed. The objectives of the Viking and Voyager missions are described. The effects of launch vehicles and access to space, the cost of exploration, the balance of planetary exploration with other space sciences, and international planet exploration missions on future planetary exploration programs are discussed. Inner and outer solar system exploration, comet exploration, extensive human visitations to Mars, joint U.S.-Soviet programs, and exploration beyond the solar system are proposed as future planetary missions.
Allen, Lew, Jr.↗
NLF technology is ready to go
Natural laminar flow (NLF) can reduce drag on aircraft developed using modern structural design methods. Modern metal and composite construction methods can meet NLF requirements for subsonic commuter and business airframes. NLF research at NASA concentrates on expanding the practical application of NLF drag reduction technology; payoffs include progress with liquid-crystal flow visualization, NLF on three-dimensional bodies, and the effects of acoustics on laminar stability. Fuel savings from 2 to 4 percent are expected if laminar flow could be achieved over the forward 50 percent of engine nacelles on large transports depending on the configuration. It is concluded that the skill required to use NLF for drag reduction depends on understanding the conservative design corridors within which laminar flow is durable and reliable.
Holmes, Bruce J.↗
Getting ready to go
The reevaluation of the Space Station that has occurred over the past two and a half years is reviewed, and the system development that has been recently initiated is discussed. Upcoming developments with regard to laboratory outfitting, extended duration Orbiter, and logistics operations are summarized. The goals of the first launches are discussed, and the aims of the succeeding manned flights are examined.
Moser, Thomas L.↗