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  • Other Sources  (12)
  • LIFE SCIENCES  (7)
  • PHYSICAL SCIENCES  (5)
  • 1
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    Probe Follower for Moving Blood Vessels (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Probes track vessel expansion and contraction with minimal perturbation. Nozzle back-pressure changes at cuff on blood vessel basis for monitoring position of probe in blood vessel. Fluidic amplifiers use signals to control three-axis servo that centers measuring probe between sensing-nozzle pairs at cuff.
    Keywords: LIFE SCIENCES
    Type: NPO-15898 , NASA Tech Briefs (ISSN 0145-319X); 8; 4; P. 503
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Biological-activity monitor (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Ingested fluorescent precursors are tracked after excretion as fluorescent compounds, to monitor activities ranging from metabolism to migration.
    Keywords: LIFE SCIENCES
    Type: NPO-14089 , NASA Tech Briefs (ISSN 0145-319X); 2; 2; P. 3
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Ultrasonic-mammography apparatus (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Improved transmitted/tissue/receiver coupling enhances sensitivity of mammography test. Device involves chamber into which organ is inserted or drawn by vacuum.
    Keywords: LIFE SCIENCES
    Type: NPO-13935 , NASA Tech Briefs (ISSN 0145-319X); 2; 2; P. 3
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Tracking falling objects (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Moving lens follows movement of object accelerated by gravity. Lenses and mirrors maintain constant magnification regardless of distance between moving optical carriage mechanism and fixed telescope. Device tracks objects up to 2 cm in diameter over vertical distance of 2 m.
    Keywords: PHYSICAL SCIENCES
    Type: NPO-14813 , NASA Tech Briefs (ISSN 0145-319X); 5; 3; P. 306
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    In vivo blood-flow mapping (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Application of laser doppler techniques to commercially available, low loss fiber optics allows direct reading of blood velocity within tiny blood vessels.
    Keywords: LIFE SCIENCES
    Type: NPO-14133 , NASA Tech Briefs (ISSN 0145-319X); 3; 2; P. 251
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    NASA TECHNICAL REPORTS
  • 6
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    A probe for blood-vessel and spinal interiors (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Probe design allows insertion into lumen of blood vessels to perform oximetry and investigate plaque on interior vessel walls. Probe is more accurate than standard oximetry procedures of determining oxygenation of circulating blood.
    Keywords: LIFE SCIENCES
    Type: NPO-14132 , NASA Tech Briefs (ISSN 0145-319X); 3; 2; P. 248
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    NASA TECHNICAL REPORTS
  • 7
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    Improved probe for rectal-cancer detection (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Modified protosigmoidoscope, with third partially mirrored lens, provides lateral as well as forward vision for thorough examination of patients for malignant or premalignant lesions of colon and rectum.
    Keywords: LIFE SCIENCES
    Type: NPO-14247 , NASA Tech Briefs (ISSN 0145-319X); 3; 4; P. 562
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Vapor Degreasing Of A Large Tank (1995)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Vapor degreasing procedure provides for removal of relatively non-volatile oils and greases from insides of large vessels. Solvent refluxed to concentrate less volatile contaminants at bottom. Procedure ensures required degrees of cleaniness in high-purity chemical processing and high-vacuum processing vessels. Devised for cleaning complexly-shaped stainless-steel vacuum chamber containing numerous difficult-to-clean features like screw holes and abutting surfaces. Solvent can be chlorofluorocarbon, if means provided to recover most and minimize portion escaping into air. Alternatively, hydrocarbon or other flammable solvent used, provided flammability tolerable in particular application.
    Keywords: PHYSICAL SCIENCES
    Type: NPO-19258 , NASA Tech Briefs (ISSN 0145-319X); 19; 4; P. 48
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    NASA TECHNICAL REPORTS
  • 9
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    Collectors Of Airborne And Spaceborne Particles (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Brushlike collectors capture samples of dust and other particles in space vacuum or air for optical, scanning-electron-microscope, and/or x-ray analysis. Gently decelerates particles without damaging them, minimizing tendency of some particles to rebound. Depending on design of specific collector of this type, it captures particles ranging upward in size from fractions of micrometer to few micrometers.
    Keywords: PHYSICAL SCIENCES
    Type: NPO-18183 , NASA Tech Briefs (ISSN 0145-319X); 15; 9; P. 74
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    NASA TECHNICAL REPORTS
  • 10
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    Real-Time Keratometer (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Optical/electronic keratometer system produces contour map of corneal surface illuminated by infrared light pulses. Prevents operator error and eliminates need to apply fluorescent liquids to cornea. Keratometer provides both video display and numerical recording for corneal-transplant and radial-keratotomy surgery and for contact-lens fitting. Optical system of keratometer, circular grating pattern transmitted to corneal surface reflected onto identical circular grating on surface of fiber plate, producing Moire pattern. Data-analysis-and-display mode, laser light pulsed, and Moire pattern converted to digital information in frame grabber. Digital picture information sent to computer for processing and display.
    Keywords: LIFE SCIENCES
    Type: NPO-16701 , NASA Tech Briefs (ISSN 0145-319X); 12; 3; P. 76
    Format: text
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    NASA TECHNICAL REPORTS
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