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  • Other Sources  (5)
  • 1980-1984  (4)
  • 1970-1974  (1)
  • 1910-1914
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  • 1
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    Adaptive guidance and control for future remote sensing systems (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: A unique approach to onboard processing was developed that is capable of acquiring high quality image data for users in near real time. The approach is divided into two steps: the development of an onboard cloud detection system; and the development of a landmark tracker. The results of these two developments are outlined and the requirements of an operational guidance and control system capable of providing continuous estimation of the sensor boresight position are summarized.
    Keywords: ASTRODYNAMICS
    Type: NASA. Goddard Space Flight Center Fifth Ann. Flight Mech.(Estimation Theory Symp.; 17 p
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Fluid-Injection Tool for Inaccessible Areas (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: New tool injects liquids or gases into narrow crevices. Can be used to apply caulking and waterproofing compounds, adhesives, detergent, undercoats and oil and to aerate hard-to-reach places. Nozzle can reach into opening 1/32 inch wide to depth of more than 4 inches. Although thin, device is rigid and strong.
    Keywords: MACHINERY
    Type: KSC-11217 , NASA Tech Briefs (ISSN 0145-319X); 6; 4; P. 438
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Project resource reallocation algorithm (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A methodology for adjusting baseline cost estimates according to project schedule changes is described. An algorithm which performs a linear expansion or contraction of the baseline project resource distribution in proportion to the project schedule expansion or contraction is presented. Input to the algorithm consists of the deck of cards (PACE input data) prepared for the baseline project schedule as well as a specification of the nature of the baseline schedule change. Output of the algorithm is a new deck of cards with all work breakdown structure block and element of cost estimates redistributed for the new project schedule. This new deck can be processed through PACE to produce a detailed cost estimate for the new schedule.
    Keywords: ADMINISTRATION AND MANAGEMENT
    Type: NASA-TM-82419
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Definition of experimental studies for determining gaseous and particulate cloud environment of manned spacecraft and applications to cometary physics Final report (1970)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Cosmic gas environment surrounding manned spacecraft
    Keywords: SPACE VEHICLES
    Type: NASA-CR-113894 , GCA-TR-70-2-N
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Toward the assessment of the susceptibility of a digital system to lightning upset (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Accomplishments and directions for further research aimed at developing methods for assessing a candidate design of an avionic computer with respect to susceptability to lightning upset are reported. Emphasis is on fault tolerant computers. Both lightning stress and shielding are covered in a review of the electromagnetic environment. Stress characterization, system characterization, upset detection, and positive and negative design features are considered. A first cut theory of comparing candidate designs is presented including tests of comparative susceptability as well as its analysis and simulation. An approach to lightning induced transient fault effects is included.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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