Sample records for tech briefs article

  1. NASA Tech Briefs, April 1995. Volume 19, No. 4

    NASA Technical Reports Server (NTRS)

    1995-01-01

    This issue of the NASA Tech Briefs has a special focus section on video and imaging, a feature on the NASA invention of the year, and a resource report on the Dryden Flight Research Center. The issue also contains articles on electronic components and circuits, electronic systems, physical sciences, materials, computer programs, mechanics, machinery, manufacturing/fabrication, mathematics and information sciences and life sciences. In addition to the standard articles in the NASA Tech brief, this contains a supplement entitled "Laser Tech Briefs" which features an article on the National Ignition Facility, and other articles on the use of Lasers.

  2. NASA Tech Briefs Index 1979. Volume 4, Nos. 1-4

    NASA Technical Reports Server (NTRS)

    1980-01-01

    Tech Briefs are short announcements of new technology derived from the research and development activities of the National Aeronautics and Space Administration. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This Index to NASA Tech Briefs contains abstracts and four indexes -- subject, personal author, originating Center, and Tech Brief number -- for 1979 Tech Briefs.

  3. NASA Tech Briefs Index 1978. Volume 3, Nos. 1-4

    NASA Technical Reports Server (NTRS)

    1978-01-01

    Tech Briefs are short announcements of new technology derived from the research and development activities of the National Aeronautics and Space Administration. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This Index to NASA Tech Briefs contains abstracts and four indexes -- subject, personal author, originating Center, and Tech Brief number -- for 1978 Tech Briefs.

  4. NASA Tech Briefs Index 1980. Volume 5, Nos. 1-4

    NASA Technical Reports Server (NTRS)

    1981-01-01

    Tech Briefs are short announcements of new technology derived from the research and development activities of the National Aeronautics and Space Administration. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This Index to NASA Tech Briefs contains abstracts and four indexes -- subject,. personal author, originating Center, and Tech Brief number -- for 1980 Tech Briefs.

  5. Evaluating Assistive Technology in the Education of Persons with Severe Disabilities

    ERIC Educational Resources Information Center

    Reichle, Joe

    2011-01-01

    This commentary includes a brief discussion of issues raised by the articles and systematic review contained in this special issue addressing technology applications for persons with severe developmental disabilities. Topical areas include a discussion of: (1) a need to compare "high tech" with "low tech" applications, (2) procedural fidelity, (3)…

  6. Cumulative index to NASA Tech Briefs, 1970-1975. [bibliographies

    NASA Technical Reports Server (NTRS)

    1979-01-01

    Tech briefs of technology derived from the research and development activities of the National Aeronautics and Space Administration are presented. Abstracts and indexes of subject, personal author, originating center, and tech brief number for the 1970-1975 tech briefs are presented.

  7. Tech Forum Highlights: Last October, Technology Directors, Superintendents, Principals, Teacher Trainers, and Other Education Leaders Gathered Just outside New York City for T&L's One-Day Tech Forum Event

    ERIC Educational Resources Information Center

    McLester, Susan

    2005-01-01

    This brief article describes the events and discussions that took place at the annual Fall Tech Forum event, hosted at the IBM Conference Center in Palisades, New York. At the Forum, practitioners and leaders gathered for a day of professional development sessions and networking with colleagues and industry experts. The highlights of the Forum are…

  8. Anti-Fog Compound

    NASA Technical Reports Server (NTRS)

    1985-01-01

    Tracer Chemical Corporation's TRX Anti-Fog Composition is an inexpensive product which prevents condensation on plastic and glass surfaces. It was the result from a Tech Briefs article detailing a Johnson Space Center compound.

  9. NASA Tech Briefs, April 1999. Volume 23, No. 4

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Topics include: special coverage sections on automotive technology, and CAM and sections on electronic components and systems, software, materials, machinery/automation, physical sciences, and a special section of Electronic Tech Briefs and Motion Control Tech Briefs.

  10. NASA Tech Briefs, December 2000. Volume 24, No. 12

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics include: special coverage sections on Imaging/Video/Display Technology, and sections on electronic components and systems, test and measurement, software, information sciences, and special sections of Electronics Tech Briefs and Motion Control Tech Briefs.

  11. NASA Tech Briefs, October 2001. Volume 25, No. 10

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Topics include: special coverage section on composites and plastics, electronic components and systems, software, mechanics, physical sciences, information sciences, book and reports, and a special sections of Photonics Tech Briefs and Motion Control Tech Briefs.

  12. NASA Tech Briefs, February 2002. Volume 26, No. 2

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include:a technology focus on computers, electronic components and systems, software, materials, mechanics,physical sciences machinery, manufacturing/fabrication, mathematics, book and reports, motion control tech briefs and a special section on Photonics Tech Briefs.

  13. NASA Tech Briefs, September 1998. Volume 22, No. 9

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage on data acquisition, also, electronic components and circuits, electronic systems, software, materials, mechanics, machinery/automation, physical sciences, information sciences, This issue contains a special sections of Electronics Tech Briefs and Motion Control Tech Briefs.

  14. NASA Tech Briefs, January 1996. Volume 20, No. 1

    NASA Technical Reports Server (NTRS)

    1996-01-01

    This issue has a special focus on sensors, and include articles on Electronic Components and Circuits, Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery/Automation, Manufacturing/Fabrication, and Mathematics and Information Sciences

  15. NASA Tech Briefs, November 1998. Volume 22, No. 11

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage sections on test and measurement and sections on electronic components and circuits, electronic systems, software, materials, mechanics, machinery/automation, physical sciences, information sciences, book and reports, and special sections of Electronics Tech Briefs amd Rapid Product Development Tech Briefs.

  16. NASA Tech Briefs, June 1998. Volume 22, No. 6

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage on computer hardware and peripherals, electronic components and circuits, electronic systems, software, materials, mechanics, machinery/automation, manufacturing, physical sciences, information sciences, book and reports, and a special section of Photonics Tech Briefs. and a second special section of Motion Control Tech Briefs

  17. NASA Tech Briefs, May 1999. Volume 23, No. 5

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Topics include: special coverage sections on sensors and composites and plastics, and sections on electronic components and systems, software, materials, mechanics, machinery and automation, bio-medical, physical sciences, book and reports, and a special section of Photonics Tech Briefs and Rapid Product Development Tech Briefs.

  18. NASA Tech Briefs, October 1999. Volume 23, No. 10

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Topics include: special coverage section on data acquisition and sensors and sections on electronic components and systems, software, materials, mechanics, machinery/automation, manufacturing/fabrication, bio-medical, physical sciences, information sciences, book and reports, and special section of Electronics Tech Briefs and Motion Control Tech briefs

  19. Voltage-Controlled Oscillator

    NASA Technical Reports Server (NTRS)

    1995-01-01

    Integrated Component Systems, Inc. incorporated information from a NASA Tech Briefs article into a voltage-controlled oscillator it designed for a customer. The company then applied the technology to its series of phase-locked loop synthesizers, which offer superior phase noise performance.

  20. NASA Tech Briefs, December 1998. Volume 22, No. 12

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage section on design and analysis software, and sections on electronic components and circuits, electronic systems, software, materials, mechanics, machinery/automation, manufacturing/fabrication, physical sciences, and special sections of Photonics Tech Briefs, Motion Control Tech briefs and a Hot Technology File 1999 Resource Guide.

  1. NASA Tech Briefs, October 2000. Volume 24, No. 10

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics include: special coverage sections on CAD, CAE, and PDM, and, Composites and Plastics, and sections on electronic components and systems, software, test and measurement, mechanics, manufacturing/fabrication, physical sciences, information sciences, book and reports, and special sections of Electronics Tech Briefs and Motion Control Tech Briefs

  2. Cumulative index to NASA Tech Briefs, 1986-1990, volumes 10-14

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Tech Briefs are short announcements of new technology derived from the R&D activities of the National Aeronautics and Space Administration. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This cumulative index of Tech Briefs contains abstracts and four indexes (subject, personal author, originating center, and Tech Brief number) and covers the period 1986 to 1990. The abstract section is organized by the following subject categories: electronic components and circuits, electronic systems, physical sciences, materials, computer programs, life sciences, mechanics, machinery, fabrication technology, and mathematics and information sciences.

  3. Scientific and technical information output of the Langley Research Center for Calender year 1981

    NASA Technical Reports Server (NTRS)

    1982-01-01

    Included are citations for formal reports, quick-release technical memorandums, contractor reports, journal articles and periodical literature, meeting/conference papers, and computer programs. Tech briefs, patents, and oral presentations to conferences/workshops are also included.

  4. NASA Tech Briefs, April 1989. Volume 13, No. 4

    NASA Technical Reports Server (NTRS)

    1989-01-01

    A special feature of this issue is an article about the evolution of high technology in Texas. Topics include: Electronic Components & and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences.

  5. Index to 1982 NASA Tech Briefs, volume 7, numbers 1-4

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This index for 1982 Tech Briefs contains abstracts and four indexes: subject, personal author, originating center, and Tech Brief Number. The following areas are covered: electronic components and circuits, electronic systems, physical sciences, materials, life sciences, mechanics, machinery, fabrication technology, and mathematics and information sciences.

  6. Cumulative Index to NASA Tech Briefs 1963-1969

    NASA Technical Reports Server (NTRS)

    1970-01-01

    Tech Briefs are short announcements of new technology derived from the research and development activities of the National Aeronautics and Space Administration. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This Cumulative index to NASA Tech Briefs lists those published from 1963 through 1969. The main listing is divided into six categokies: Electrical (Electronic), Physical Sciences (Energy Sources), Materials (Chemistry), Life Sciences, Mechanical, and Computer Programs.

  7. Index to 1984 NASA Tech Briefs, volume 9, numbers 1-4

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This index for 1984 Tech B Briefs contains abstracts and four indexes: subject, personal author, originating center, and Tech Brief Number. The following areas are covered: electronic components and circuits, electronic systems, physical sciences, materials, life sciences, mechanics, machinery, fabrication technology, and mathematics and information sciences.

  8. Index to 1981 NASA Tech Briefs, volume 6, numbers 1-4

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This index for 1981 Tech Briefs contains abstracts and four indexes: subject, personal author, originating center, and Tech Brief Number. The following areas are covered: electronic components and circuits, electronic systems, physical sciences, materials, life sciences, mechanics, machinery, fabrication technology, and mathematics and information sciences.

  9. Index to 1983 NASA Tech Briefs, volume 8, numbers 1-4

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This index for 1983 Tech Briefs contains abstracts and four indexes: subject, personal author, originating center, and Tech Brief Number. The following areas are covered: electronic components and circuits, electronic systems, physical sciences, materials, life sciences, mechanics, machinery, fabrication technology, and mathematics and information sciences.

  10. Index to 1985 NASA Tech Briefs, volume 10, numbers 1-4

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This index for 1985 Tech Briefs contains abstracts and four indexes: subject, personal author, originating center, and Tech Brief Number. The following areas are covered: electronic components and circuits, electronic systems, physical sciences, materials, life sciences, mechanics, machinery, fabrication technology, and mathematics and information sciences.

  11. Index to 1986 NASA Tech Briefs, volume 11, numbers 1-4

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. This index for 1986 Tech Briefs contains abstracts and four indexes: subject, personal author, originating center, and Tech Brief Number. The following areas are covered: electronic components and circuits, electronic systems, physical sciences, materials, life sciences, mechanics, machinery, fabrication technology, and mathematics and information sciences.

  12. Scientific and technical information output of the Langley Research Center for calendar year 1982

    NASA Technical Reports Server (NTRS)

    1983-01-01

    Citations are presented for 1380 for formal reports; quick-release technical memorandum; contractor reports; journal articles and periodical literature; technical talks and meeting presentations; computer programs; tech briefs, and patents produced during 1982. An author index is provided.

  13. Scientific and technical information output of the Langley Research Center

    NASA Technical Reports Server (NTRS)

    1984-01-01

    Scientific and technical information that the Langley Research Center produced during the calendar year 1983 is compiled. Included are citations for Formal Reports, Quick-Release Technical Memorandums, Contractor Reports, Journal Articles and other Publications, Meeting Presentations, Technical Talks, Computer Programs, Tech Briefs, and Patents.

  14. The 1994 Ames Research Center publications: A bibliography

    NASA Technical Reports Server (NTRS)

    Scarich, Shelley J. (Editor)

    1995-01-01

    This document is a compilation of the scientific and technical information that Ames Research Center has produced during the calendar year 1994. Included are citations for formal reports, high-number conference publications, high-number technical memorandums, contractor reports, journal articles, meeting presentation, tech briefs, patents, and translations.

  15. NASA Langley Scientific and Technical Information Output 2000

    NASA Technical Reports Server (NTRS)

    Machie, Harriet B. (Compiler); Stewart, Susan H. (Compiler)

    2001-01-01

    This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 2000. Included are citations for Special Publications, Technical Publications, Conference Publications, Technical Memorandum, Contractor Reports, Journal Articles and Book Publications, Meeting Presentations, Technical Talks, Tech Briefs, and Patents.

  16. NASA Tech Briefs, March 1995

    NASA Technical Reports Server (NTRS)

    1995-01-01

    This issue contains articles with a special focus on Computer-Aided design and engineering amd a research report on the Ames Research Center. Other subjects in this issue are: Electronic Components and Circuits, Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Manufacturing/Fabrication, Mathematics and Information Sciences and Life Sciences

  17. NASA Langley Scientific and Technical Information Output: 1999

    NASA Technical Reports Server (NTRS)

    Stewart, Susan H. (Compiler); Machie, Harriet (Compiler)

    2000-01-01

    This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1999. Included are citations for Special Publications, Technical Publications, Conference Publications, Technical Memorandums, Contractor Reports, Journal Articles and Book Publications, Meeting Presentations, Technical Talks, Tech Briefs, and Patents.

  18. Cumulative Index to NASA Tech Briefs

    NASA Technical Reports Server (NTRS)

    1969-01-01

    Tech Briefs are short announcements of new technology derived from the R&D activities of the National Aeronautics and Space Administration. This Index to NASA Tech Briefs lists the technological innovations derived from the U.S. space program and published during the period January through December 1968. A new five year cycle of cumulative indexes begins with this index. The main section is arranged in six categories: Electrical (Electronic); Physical Sciences (Energy Sources); Materials (Chemistry); Life Sciences; Mechanical; and Computer Programs.

  19. LASER Tech Briefs, February 1995. Volume 3, No. 1

    NASA Technical Reports Server (NTRS)

    1995-01-01

    Topics included in this issue of LASER Tech Briefs are: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Mechanics, Fabrication, and Mathematics and Information Sciences, and

  20. NASA Tech Briefs, August 1998. Volume 22, No. 8

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage of medical design, electronic components and circuits, electronic systems, software, materials, mechanics, machinery/automation, physical sciences, and a special section of Photonics Tech Briefs.

  1. NASA Tech Briefs, July 2001. Volume 25, No. 7

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Topics include: special coverage sections on Data Acquisition, and sections on electronic components and systems, software, mechanics, machinery/automation, biomedical and a special section of Photonics Tech Briefs.

  2. LASER Tech Briefs, Fall 1994. Volume 2, No. 4

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics in this issue of LASER Tech briefs include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences

  3. NASA Tech Briefs, August 2002. Volume 26, No. 8

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include: a technology focus on computers, electronic components and systems, software, materials, mechanics, machinery/automation, manufacturing, physical sciences, information sciences, book and reports, and Motion control Tech Briefs.

  4. NASA Tech Briefs, April 1998. Volume 22, No. 4

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage on video and imaging, electronic components and circuits, electronic systems, physical sciences, materials, computer software, mechanics, machinery/automation, and a special section of Photonics Tech Briefs.

  5. NASA Langley scientific and technical information output: 1994, volume 1

    NASA Technical Reports Server (NTRS)

    Phillips, Marilou S. (Compiler); Stewart, Susan H. (Compiler)

    1995-01-01

    This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1994. Included are citations for Formal Reports, High-Numbered Conference Publications, High-Numbered Technical Memorandums, Contractor Reports, Journal Articles and Other Publications, Meeting Presentations, Computer Programs, Tech Briefs, and Patents.

  6. NASA Langley Scientific and Technical Information Output: 1994. Volume 1

    NASA Technical Reports Server (NTRS)

    Phillips, Marilou S. (Compiler); Stewart, Susan H. (Compiler)

    1995-01-01

    This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1994. Included are citations for Formal Reports, High-Numbered Conference Publications, High-Numbered Technical Memorandums, Contractor Reports, Journal Articles and Other Publications, Meeting Presentations, Computer Programs, Tech Briefs, and Patents.

  7. Scientific and technical information output of the Langley Research Center for Calendar Year 1985

    NASA Technical Reports Server (NTRS)

    1986-01-01

    A compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1985 is presented. Included are citations for Formal Reports, Quick-Release Technical Memorandums, Contractor Reports, Journal Articles and Other Publications, Meeting Presentations, Technical Talks, Computer Programs, Tech Briefs, and Patents.

  8. Scientific and technical information output of the Langley Research Center for calendar year 1984

    NASA Technical Reports Server (NTRS)

    1985-01-01

    The scientific and technical information that the Langley Research Center produced during the calendar year 1984 is compiled. Approximately 1650 citations are included comprising formal reports, quick-release technical memorandums, contractor reports, journal articles and other publications, meeting presentations, technical talks, computer programs, tech briefs, and patents.

  9. NASA Langley Scientific and Technical Information Output: 1996

    NASA Technical Reports Server (NTRS)

    Stewart, Susan H. (Compiler); Phillips, Marilou S. (Compiler)

    1997-01-01

    This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1996. Included are citations for Formal Reports, High-Numbered Conference Publications, High-Numbered Technical Memorandums, Contractor Reports, Journal Articles and Other Publications, Meeting Presentations, Technical Talks, Computer Programs, Tech Briefs, and Patents.

  10. NASA Tech Briefs, November 2001. Volume 25, No. 11

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Topics include: special coverage section on data acquisition, and sections on electronic components and systems, software, materials, machinery/automation, physical sciences, book and reports, and a special section of Photonics Tech Briefs.

  11. NASA Tech Briefs, June 2002. Volume 26, No. 6

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include: a technology focus on data acquisition, electronic components and systems, software, materials, mechanics, machinery/automation, physical sciences, book and reports, motion control, and a special section of Photonics Tech Briefs.

  12. NASA Tech Briefs, September 2001. Volume 25, No. 9

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Topics include: special coverage section on sensors, and sections on electronic components systems, software, materials, machinery/automation, manufacturing/fabrication, bio-medical, book and reports, and a special section of Photonics Tech Briefs.

  13. NASA Tech Briefs, May 2002. Volume 26, No. 5

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include: a technology focus on engineering materials, electronic components and circuits, software, mechanics, machinery/automation, manufacturing, physical sciences, information sciences, book and reports, and a special section of Photonics Tech Briefs.

  14. NASA Tech Briefs, September 2002. Volume 26, No. 9

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include: a technology focus on data acquisition, electronic components and systems, software, materials, mechanics, machinery/automation, bio-medical, physical sciences, book and reports, and a special section of Photonics Tech Briefs.

  15. NASA Tech Briefs, November 2002. Volume 26, No. 11

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include: a technology focus on engineering materials, electronic components and systems, software, mechanics, machinery/automation, manufacturing, bio-medical, physical sciences, information sciences book and reports, and a special section of Photonics Tech Briefs.

  16. NASA Tech Briefs, August 2001. Volume 25, No. 8

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Topics include: special coverage section on computers and peripherals, and sections on electronic components systems, software, materials, mechanics, manufacturing/fabrication, physical sciences, book and reports, and a special section of Motion Control Tech Briefs.

  17. NASA Tech Briefs, October 2002. Volume 26, No. 10

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include: a technology focus on sensors, electronic components and systems, software, materials, materials, mechanics, manufacturing, physical sciences, information sciences, book and reports, motion control and a special section of Photonics Tech Briefs.

  18. NASA Tech Briefs, March 2002. Volume 26, No. 3

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include: a special section on data acquisition, software, electronic components and systems, materials, computer programs, mechanics, machinery/automation, manufacturing, biomedical, physical sciences, book and reports, and a special section of Photonics Tech Briefs.

  19. NASA Tech Briefs, July 2002. Volume 26, No. 7

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics include: a technology focus sensors, software, electronic components and systems, materials, mechanics, machinery/automation, manufacturing, bio-medical, physical sciences, information sciences, book and reports, and a special section of Photonics Tech Briefs.

  20. NASA Tech Briefs Index, 1977, volume 2, numbers 1-4

    NASA Technical Reports Server (NTRS)

    1977-01-01

    Announcements of new technology derived from the research and development activities of NASA are presented. Abstracts, and indexes for subject, personal author, originating center, and Tech Brief number are presented for 1977.

  1. NASA Tech Briefs, May 1998. Volume 22, No. 5

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage on advanced composites, plastics and metals, electronic components and circuits, electronic systems, physical sciences, computer software, mechanics, machinery/automation, manufacturing/fabrication book and reports, and a special section of Electronics Tech Briefs.

  2. NASA Tech Briefs, January 1999. Volume 23, Mp/ 1

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Topics include: special coverage sections on sensors and data acquisition and sections on electronic components and circuits, electronic software, materials, mechanics, bio-medical physical sciences, book and reports, and a special section of Photonics Tech Briefs.

  3. NASA Tech Briefs, July 1995. Volume 19, No. 7

    NASA Technical Reports Server (NTRS)

    1995-01-01

    Topics include: mechanical components, electronic components and circuits, electronic systems, physical sciences, materials, computer programs, mechanics, machinery, manufacturing/fabrication, mathematics and information sciences, book and reports, and a special section of Federal laboratory computing Tech Briefs.

  4. NASA Tech Briefs, June 1995. Volume 19, No. 6

    NASA Technical Reports Server (NTRS)

    1995-01-01

    Topics include: communications technology, electronic components and circuits, electronic systems, physical sciences, materials, computer programs, mechanics, machinery, manufacturing/fabrication, mathematics and information sciences, life sciences, books and reports, a special section of laser Tech Briefs.

  5. Growing Three-Dimensional Corneal Tissue in a Bioreactor

    NASA Technical Reports Server (NTRS)

    Spaulding, Glen F.; Goodwin, Thomas J.; Aten, Laurie; Prewett, Tacey; Fitzgerald, Wendy S.; OConnor, Kim; Caldwell, Delmar; Francis, Karen M.

    2003-01-01

    Spheroids of corneal tissue about 5 mm in diameter have been grown in a bioreactor from an in vitro culture of primary rabbit corneal cells to illustrate the production of optic cells from aggregates and tissue. In comparison with corneal tissues previously grown in vitro by other techniques, this tissue approximates intact corneal tissue more closely in both size and structure. This novel three-dimensional tissue can be used to model cell structures and functions in normal and abnormal corneas. Efforts continue to refine the present in vitro method into one for producing human corneal tissue to overcome the chronic shortage of donors for corneal transplants: The method would be used to prepare corneal tissues, either from in vitro cultures of a patient s own cells or from a well-defined culture from another human donor known to be healthy. As explained in several articles in prior issues of NASA Tech Briefs, generally cylindrical horizontal rotating bioreactors have been developed to provide nutrient-solution environments conducive to the 30 NASA Tech Briefs, October 2003 growth of delicate animal cells, with gentle, low-shear flow conditions that keep the cells in suspension without damaging them. The horizontal rotating bioreactor used in this method, denoted by the acronym "HARV," was described in "High-Aspect-Ratio Rotating Cell-Culture Vessel" (MSC-21662), NASA Tech Briefs, Vol. 16, No. 5 (May, 1992), page 150.

  6. Protocol for selecting ASR-affected structures for lithium treatment

    DOT National Transportation Integrated Search

    2006-02-01

    This TechBrief describes a protocol for evaluating damaged concrete structures to determine whether they are suitable candidates for lithium treatment to address alkali-silica reactivity (ASR). A major part of the TechBrief's source document, Protoco...

  7. Scientific and technical information output of the Langley Research Center for calendar year 1980

    NASA Technical Reports Server (NTRS)

    1981-01-01

    This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1980. Approximately 1400 citations are given. Formal reports, quick-release technical memorandums, contractor reports, journal articles, meeting/conference papers, computer programs, tech briefs, patents, and unpublished research are included.

  8. NASA Langley Scientific and Technical Information Output, 1995. Volume 1

    NASA Technical Reports Server (NTRS)

    Stewart, Susan H. (Compiler); Phillips, Marilou S. (Compiler)

    1996-01-01

    This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1995. Included are citations for formal reports, high-numbered conference publications, high-numbered technical memorandums, contractor reports, journal articles and other publications, meeting presentations, technical talks, computer programs, tech briefs, and patents.

  9. Scientific and technical information output of the Langley Research Center for calendar year 1986

    NASA Technical Reports Server (NTRS)

    1987-01-01

    This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1986. Included are citations for Formal Reports, Quick-Release Technical Memorandums, Contractor Reports, Journal Articles and Other Publications, Meeting Presentations, Techncial Talks, Computer Programs, Tech Briefs, and Patents.

  10. NASA Tech Briefs, May 1995. Volume 19, No. 5

    NASA Technical Reports Server (NTRS)

    1995-01-01

    This issue features an resource report on Jet Propulsion Laboratory and a special focus on advanced composites and plastics. It also contains articles on electronic components and circuits, electronic systems, physical sciences, computer programs, mechanics, machinery, manufacturing and fabrication, mathematics and information sciences, and life sciences. This issue also contains a supplement on federal laboratory test and measurements.

  11. LASER Tech Briefs, September 1993. Volume 1, No. 1

    NASA Technical Reports Server (NTRS)

    Schnirring, Bill (Editor)

    1993-01-01

    This edition of LASER Tech briefs contains a feature on photonics. The other topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, Life Sciences and books and reports.

  12. NASA Tech Briefs, September 1995. Volume 19, No. 9

    NASA Technical Reports Server (NTRS)

    1995-01-01

    A special focus for this issue is Sensors. Topics covered include : Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; and Mathematics and Information Sciences. A section of Laser Tech Briefs is included.

  13. NASA Tech Briefs, December 1995. Volume 19, No. 12

    NASA Technical Reports Server (NTRS)

    1995-01-01

    Topics include: a special focus section on Bio/Medical technology, electronic components and circuits, electronic systems, physical sciences, materials, computer programs, mechanics, machinery, manufacturing/fabrication, mathematics and information sciences, book and reports, and a special section on Laser Tech Briefs.

  14. NASA Tech Briefs, October 1998. Volume 22, No. 10

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage sections on sensors/imaging and mechanical technology, and sections on electronic components and circuits, electronic systems, software, materials, machinery/automation, manufacturing/fabrication, physical sciences, information sciences, book and reports, and a special section of Photonics Tech Briefs.

  15. NASA Tech Briefs, December 2001. Volume 25, No. 12

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Topics include: special coverage section on sensors, and sections on electronic components and systems, software, materials, mechanics, information sciences, book and reports, and a special section of Motion Control Tech Briefs. It also contains a section celebrating the 25th anniversary of the publication.

  16. Guidelines for design and rating of gusset-plate connections for steel truss bridges : [tech brief].

    DOT National Transportation Integrated Search

    2014-08-01

    The FHWA guide provides rating guidance : on both load and resistance factor rating : (LRFR) and load factor rating philosophies. : Discussions in this TechBrief are from the LRFR : perspective only. The FHWA guide recommends five resistance checks a...

  17. NASA Tech Briefs, July 1998. Volume 22, No. 7

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage on graphics and simulation, electronic components and circuits, electronic systems, materials, a second special coverage on mechanical technology, machinery/automation, and a special section of electronics Tech Briefs. There is also a section devoted to the technology of the International Space Station.

  18. NASA Tech Briefs, March 1999. Volume 23, No. 3

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Topics include: special coverage sections on CAD/CAE/PDM, industrial controls and sections on electronic components systems, materials, software, mechanics, machinery/automation, manufacturing/fabrication, physical sciences, book and reports, and a special section of Photonics Tech Briefs and a seconds special section of Rapid Product Development.

  19. NASA Tech Briefs, October 1995. Volume 19, No. 10

    NASA Technical Reports Server (NTRS)

    1995-01-01

    A special focus in this issue is Data acquisition and analysis. Topics covered include : Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; and Mathematics and Information Sciences. Also included in this issue are Laser Tech Briefs and Industry Focus: Motion Control/ Positioning Equipment

  20. Alcohol and highway safety: screening and brief intervention for alcohol problems as a community approach to improve traffic safety : traffic tech.

    DOT National Transportation Integrated Search

    2013-09-01

    The report discussed in this edition of Traffic Tech reviews the current state of knowledge : on Screening and Brief Intervention (SBI). It specifically : addresses the rationale for addressing at-risk : drinkers, defines SBI, provides examples of ho...

  1. AutoGen Version 5.0

    NASA Technical Reports Server (NTRS)

    Gladden, Roy E.; Khanampornpan, Teerapat; Fisher, Forest W.

    2010-01-01

    Version 5.0 of the AutoGen software has been released. Previous versions, variously denoted Autogen and autogen, were reported in two articles: Automated Sequence Generation Process and Software (NPO-30746), Software Tech Briefs (Special Supplement to NASA Tech Briefs), September 2007, page 30, and Autogen Version 2.0 (NPO- 41501), NASA Tech Briefs, Vol. 31, No. 10 (October 2007), page 58. To recapitulate: AutoGen (now signifying automatic sequence generation ) automates the generation of sequences of commands in a standard format for uplink to spacecraft. AutoGen requires fewer workers than are needed for older manual sequence-generation processes, and greatly reduces sequence-generation times. The sequences are embodied in spacecraft activity sequence files (SASFs). AutoGen automates generation of SASFs by use of another previously reported program called APGEN. AutoGen encodes knowledge of different mission phases and of how the resultant commands must differ among the phases. AutoGen also provides means for customizing sequences through use of configuration files. The approach followed in developing AutoGen has involved encoding the behaviors of a system into a model and encoding algorithms for context-sensitive customizations of the modeled behaviors. This version of AutoGen addressed the MRO (Mars Reconnaissance Orbiter) primary science phase (PSP) mission phase. On previous Mars missions this phase has more commonly been referred to as mapping phase. This version addressed the unique aspects of sequencing orbital operations and specifically the mission specific adaptation of orbital operations for MRO. This version also includes capabilities for MRO s role in Mars relay support for UHF relay communications with the MER rovers and the Phoenix lander.

  2. Processing AIRS Scientific Data Through Level 3

    NASA Technical Reports Server (NTRS)

    Granger, Stephanie; Oliphant, Robert; Manning, Evan

    2010-01-01

    The Atmospheric Infra-Red Sounder (AIRS) Science Processing System (SPS) is a collection of computer programs, known as product generation executives (PGEs). The AIRS SPS PGEs are used for processing measurements received from the AIRS suite of infrared and microwave instruments orbiting the Earth onboard NASA's Aqua spacecraft. Early stages of the AIRS SPS development were described in a prior NASA Tech Briefs article: Initial Processing of Infrared Spectral Data (NPO-35243), Vol. 28, No. 11 (November 2004), page 39. In summary: Starting from Level 0 (representing raw AIRS data), the AIRS SPS PGEs and the data products they produce are identified by alphanumeric labels (1A, 1B, 2, and 3) representing successive stages or levels of processing. The previous NASA Tech Briefs article described processing through Level 2, the output of which comprises geo-located atmospheric data products such as temperature and humidity profiles among others. The AIRS Level 3 PGE samples selected information from the Level 2 standard products to produce a single global gridded product. One Level 3 product is generated for each day s collection of Level 2 data. In addition, daily Level 3 products are aggregated into two multiday products: an eight-day (half the orbital repeat cycle) product and monthly (calendar month) product.

  3. NASA tech brief evaluations

    NASA Technical Reports Server (NTRS)

    Workman, Gary L.

    1994-01-01

    A major step in transferring technology is to disseminate information about new developments to the appropriate sector(s). A useful vehicle for transferring technology from the government sector to industry has been demonstrated with the use of periodical and journal announcements to highlight technological achievements which may meet the needs of industries other than the one who developed the innovation. To meet this end, NASA has very successfully pursued the goal of identifying technical innovations through the national circulation publication; NASA Tech Briefs. At one time the Technology Utilization Offices of the various centers coordinated the selection of appropriate technologies through a common channel. In recent years, each NASA field center has undertaken the task of evaluating submittals for Tech Brief publication independently of the others. The University of Alabama in Huntsville was selected to assist MSFC in evaluating technology developed under the various programs managed by the NASA center for publication in the NASA Tech Briefs journal. The primary motivation for the NASA Tech Briefs publication is to bring to the attention of industry the various NASA technologies which, in general, have been developed for a specific aerospace requirement, but has application in other areas. Since there are a number of applications outside of NASA that can benefit from innovative concepts developed within the MSPC programs, the ability to transfer technology to other sectors is very high. In most cases, the innovator(s) are not always knowledgeable about other industries which might potentially benefit from their innovation. The evaluation process can therefore contribute to the list of potential users through a knowledgeable evaluator.

  4. NASA Tech Briefs, March 1998. Volume 22, No. 3

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics include: special coverage of computer aided design and engineering, electronic components and circuits, electronic systems, physical sciences, materials, computer software, special coverage on mechanical technology, machinery/automation, manufacturing/fabrication, mathematics and information sciences, book and reports, and a special section of Electronics Tech Briefs. Profiles of the exhibitors at the National Design Engineering show are also included in this issue.

  5. NASA Tech Briefs, December 1988. Volume 12, No. 11

    NASA Technical Reports Server (NTRS)

    1988-01-01

    This month's technical section includes forecasts for 1989 and beyond by NASA experts in the following fields: Integrated Circuits; Communications; Computational Fluid Dynamics; Ceramics; Image Processing; Sensors; Dynamic Power; Superconductivity; Artificial Intelligence; and Flow Cytometry. The quotes provide a brief overview of emerging trends, and describe inventions and innovations being developed by NASA, other government agencies, and private industry that could make a significant impact in coming years. A second bonus feature in this month's issue is the expanded subject index that begins on page 98. The index contains cross-referenced listings for all technical briefs appearing in NASA Tech Briefs during 1988.

  6. Automated Detection of Events of Scientific Interest

    NASA Technical Reports Server (NTRS)

    James, Mark

    2007-01-01

    A report presents a slightly different perspective of the subject matter of Fusing Symbolic and Numerical Diagnostic Computations (NPO-42512), which appears elsewhere in this issue of NASA Tech Briefs. Briefly, the subject matter is the X-2000 Anomaly Detection Language, which is a developmental computing language for fusing two diagnostic computer programs one implementing a numerical analysis method, the other implementing a symbolic analysis method into a unified event-based decision analysis software system for real-time detection of events. In the case of the cited companion NASA Tech Briefs article, the contemplated events that one seeks to detect would be primarily failures or other changes that could adversely affect the safety or success of a spacecraft mission. In the case of the instant report, the events to be detected could also include natural phenomena that could be of scientific interest. Hence, the use of X- 2000 Anomaly Detection Language could contribute to a capability for automated, coordinated use of multiple sensors and sensor-output-data-processing hardware and software to effect opportunistic collection and analysis of scientific data.

  7. Two Methods for Efficient Solution of the Hitting-Set Problem

    NASA Technical Reports Server (NTRS)

    Vatan, Farrokh; Fijany, Amir

    2005-01-01

    A paper addresses much of the same subject matter as that of Fast Algorithms for Model-Based Diagnosis (NPO-30582), which appears elsewhere in this issue of NASA Tech Briefs. However, in the paper, the emphasis is more on the hitting-set problem (also known as the transversal problem), which is well known among experts in combinatorics. The authors primary interest in the hitting-set problem lies in its connection to the diagnosis problem: it is a theorem of model-based diagnosis that in the set-theory representation of the components of a system, the minimal diagnoses of a system are the minimal hitting sets of the system. In the paper, the hitting-set problem (and, hence, the diagnosis problem) is translated from a combinatorial to a computational problem by mapping it onto the Boolean satisfiability and integer- programming problems. The paper goes on to describe developments nearly identical to those summarized in the cited companion NASA Tech Briefs article, including the utilization of Boolean-satisfiability and integer- programming techniques to reduce the computation time and/or memory needed to solve the hitting-set problem.

  8. Modeling Common-Sense Decisions in Artificial Intelligence

    NASA Technical Reports Server (NTRS)

    Zak, Michail

    2010-01-01

    A methodology has been conceived for efficient synthesis of dynamical models that simulate common-sense decision- making processes. This methodology is intended to contribute to the design of artificial-intelligence systems that could imitate human common-sense decision making or assist humans in making correct decisions in unanticipated circumstances. This methodology is a product of continuing research on mathematical models of the behaviors of single- and multi-agent systems known in biology, economics, and sociology, ranging from a single-cell organism at one extreme to the whole of human society at the other extreme. Earlier results of this research were reported in several prior NASA Tech Briefs articles, the three most recent and relevant being Characteristics of Dynamics of Intelligent Systems (NPO -21037), NASA Tech Briefs, Vol. 26, No. 12 (December 2002), page 48; Self-Supervised Dynamical Systems (NPO-30634), NASA Tech Briefs, Vol. 27, No. 3 (March 2003), page 72; and Complexity for Survival of Living Systems (NPO- 43302), NASA Tech Briefs, Vol. 33, No. 7 (July 2009), page 62. The methodology involves the concepts reported previously, albeit viewed from a different perspective. One of the main underlying ideas is to extend the application of physical first principles to the behaviors of living systems. Models of motor dynamics are used to simulate the observable behaviors of systems or objects of interest, and models of mental dynamics are used to represent the evolution of the corresponding knowledge bases. For a given system, the knowledge base is modeled in the form of probability distributions and the mental dynamics is represented by models of the evolution of the probability densities or, equivalently, models of flows of information. Autonomy is imparted to the decisionmaking process by feedback from mental to motor dynamics. This feedback replaces unavailable external information by information stored in the internal knowledge base. Representation of the dynamical models in a parameterized form reduces the task of common-sense-based decision making to a solution of the following hetero-associated-memory problem: store a set of m predetermined stochastic processes given by their probability distributions in such a way that when presented with an unexpected change in the form of an input out of the set of M inputs, the coupled motormental dynamics converges to the corresponding one of the m pre-assigned stochastic process, and a sample of this process represents the decision.

  9. ETV Tech Brief: Rapid Fungi and Bacteria Detection Technologies

    EPA Science Inventory

    Technical brief that summarizes the results for Mycometer, Inc. Mycometer®-test and Bactiquant®-test, which are rapid detection technologies for fungi and bacteria. The brief summarizes the results of the verification report and statement.

  10. FORTRAN Versions of Reformulated HFGMC Codes

    NASA Technical Reports Server (NTRS)

    Arnold, Steven M.; Aboudi, Jacob; Bednarcyk, Brett A.

    2006-01-01

    Several FORTRAN codes have been written to implement the reformulated version of the high-fidelity generalized method of cells (HFGMC). Various aspects of the HFGMC and its predecessors were described in several prior NASA Tech Briefs articles, the most recent being HFGMC Enhancement of MAC/GMC (LEW-17818-1), NASA Tech Briefs, Vol. 30, No. 3 (March 2006), page 34. The HFGMC is a mathematical model of micromechanics for simulating stress and strain responses of fiber/matrix and other composite materials. The HFGMC overcomes a major limitation of a prior version of the GMC by accounting for coupling of shear and normal stresses and thereby affords greater accuracy, albeit at a large computational cost. In the reformulation of the HFGMC, the issue of computational efficiency was addressed: as a result, codes that implement the reformulated HFGMC complete their calculations about 10 times as fast as do those that implement the HFGMC. The present FORTRAN implementations of the reformulated HFGMC were written to satisfy a need for compatibility with other FORTRAN programs used to analyze structures and composite materials. The FORTRAN implementations also afford capabilities, beyond those of the basic HFGMC, for modeling inelasticity, fiber/matrix debonding, and coupled thermal, mechanical, piezo, and electromagnetic effects.

  11. Electrolytes for Low-Temperature Operation of Li-CFx Cells

    NASA Technical Reports Server (NTRS)

    Smart, Marshall C.; Whitacre, Jay F.; Bugga, Ratnakumar V.; Prakash, G. K. Surya; Bhalla, Pooja; Smith, Kiah

    2009-01-01

    A report describes a study of electrolyte compositions selected as candidates for improving the low-temperature performances of primary electrochemical cells that contain lithium anodes and fluorinated carbonaceous (CFx) cathodes. This study complements the developments reported in Additive for Low-Temperature Operation of Li-(CF)n Cells (NPO- 43579) and Li/CFx Cells Optimized for Low-Temperature Operation (NPO- 43585), which appear elsewhere in this issue of NASA Tech Briefs. Similar to lithium-based electrolytes described in several previous NASA Tech Briefs articles, each of these electrolytes consisted of a lithium salt dissolved in a nonaqueous solvent mixture. Each such mixture consisted of two or more of the following ingredients: propylene carbonate (PC); 1,2-dimethoxyethane (DME); trifluoropropylene carbonate; bis(2,2,2-trifluoroethyl) ether; diethyl carbonate; dimethyl carbonate; and ethyl methyl carbonate. The report describes the physical and chemical principles underlying the selection of the compositions (which were not optimized) and presents results of preliminary tests made to determine effects of the compositions upon the low-temperature capabilities of Li-CFx cells, relative to a baseline composition of LiBF4 at a concentration of 1.0 M in a solvent comprising equal volume parts of PC and DME.

  12. Impact of newer self-monitoring technology and brief phone-based intervention on weight loss: a randomized pilot study

    PubMed Central

    Ross, Kathryn M.; Wing, Rena R.

    2016-01-01

    Objective Despite the proliferation of newer self-monitoring technology (e.g., activity monitors and smartphone apps), their impact on weight loss outside of structured in-person behavioral intervention is unknown. Methods A randomized, controlled pilot study was conducted to examine efficacy of self-monitoring technology, with and without phone-based intervention, on 6-month weight loss in adults with overweight and obesity. Eighty participants were randomized to receive standard self-monitoring tools (ST, n=26), technology-based self-monitoring tools (TECH, n=27), or technology-based tools combined with phone-based intervention (TECH+PHONE, n=27). All participants attended one introductory weight loss session and completed assessments at baseline, 3 months, and 6 months. Results Weight loss from baseline to 6 months differed significantly between groups p=.042; there was a trend for TECH+PHONE (−6.4±1.2kg) to lose more weight than ST (−1.3±1.2kg); weight loss in TECH (−4.1±1.4kg) was between ST and TECH+PHONE. Fewer ST (15%) achieved ≥5% weight losses compared to TECH and TECH+PHONE (44%), p=.039. Adherence to self-monitoring caloric intake was higher in TECH+PHONE than TECH or ST, ps<.05. Conclusion These results suggest use of newer self-monitoring technology plus brief phone-based intervention improves adherence and weight loss compared to traditional self-monitoring tools. Further research should determine cost-effectiveness of adding phone-based intervention when providing self-monitoring technology. PMID:27367614

  13. LTPP Climate Tool [Tech Brief

    DOT National Transportation Integrated Search

    2017-01-01

    This Product Brief describes the Long-Term Pavement Performance (LTPP) Climate Tool (intended for use by infrastructure engineers) that provides convenient access to the National Aeronautics and Space Administration (NASA) Modern-Era Retrospective An...

  14. Technical publications catalog : October 2006-September 2007

    DOT National Transportation Integrated Search

    2008-01-01

    This is a comprehensive listing of Turner-Fairbank Highway Research Center research documents published from October 2006 through September 2007, and includes listings of fact sheets, flyers, product briefs, reports, summaries, and TechBriefs.

  15. Technical publications catalog : October 2003-September 2005

    DOT National Transportation Integrated Search

    2005-01-01

    This is a comprehensive listing of Turner-Fairbank Highway Research Center research documents published from October 2003 through September 2005, and includes listings of fact sheets, flyers, product briefs, summaries, and TechBriefs.

  16. Technical publications catalog : October 2007-September 2008

    DOT National Transportation Integrated Search

    2009-01-01

    This is a comprehensive listing of Turner-Fairbank Highway Research Center research documents published from October 2007 through September 2008, and includes listings of fact sheets, flyers, product briefs, reports, summaries, and TechBriefs.

  17. COSMIC monthly progress report

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Activities of the Computer Software Management and Information Center (COSMIC) are summarized for the month of April 1994. Tables showing the current inventory of programs available from COSMIC are presented and program processing and evaluation activities are summarized. Five articles were prepared for publication in the NASA Tech Brief Journal. These articles (included in this report) describe the following software items: GAP 1.0 - Groove Analysis Program, Version 1.0; SUBTRANS - Subband/Transform MATLAB Functions for Image Processing; CSDM - COLD-SAT Dynamic Model; CASRE - Computer Aided Software Reliability Estimation; and XOPPS - OEL Project Planner/Scheduler Tool. Activities in the areas of marketing, customer service, benefits identification, maintenance and support, and disseminations are also described along with a budget summary.

  18. Quarterly literature review of the remote sensing of natural resources

    NASA Technical Reports Server (NTRS)

    Fears, C. B. (Editor); Inglis, M. H. (Editor)

    1977-01-01

    The Technology Application Center reviewed abstracted literature sources, and selected document data and data gathering techniques which were performed or obtained remotely from space, aircraft or groundbased stations. All of the documentation was related to remote sensing sensors or the remote sensing of the natural resources. Sensors were primarily those operating within the 10 to the minus 8 power to 1 meter wavelength band. Included are NASA Tech Briefs, ARAC Industrial Applications Reports, U.S. Navy Technical Reports, U.S. Patent reports, and other technical articles and reports.

  19. Emergency Lighting System

    NASA Technical Reports Server (NTRS)

    1994-01-01

    When power outages occurred at Landmark Plastic Corporation, it took seven to twelve minutes for the primary mercury lamps to cool down enough to relight and two to seven minutes for the ELS incandescent lamps to relight. Production could not resume for as much as seven minutes. An article in NASA Tech Briefs describing the capabilities of photosensing devices led Landmark employee, Steve Keller to design a system now activated by any voltage loss in the main lamp circuit and coupled with photosensing devices used to keep them on until the primary mercury lamps reach full brightness.

  20. Inspection Tools

    NASA Astrophysics Data System (ADS)

    1989-01-01

    A "NASA Tech Briefs" article describing an inspection tool and technique known as Optically Stimulated Electron Emission (OSEE) led to the formation of Photo Acoustic Technology, Inc. (PAT). PAT produces sensors and scanning systems which assure surface cleanliness prior to bonding, coating, painting, etc. The company's OP1000 series realtime pre-processing detection capability assures 100 percent surface quality testing. The technique involves brief exposure of the inspection surface to ultraviolet radiation. The energy interacts with the surface layer, causing free electrons to be emitted from the surface to be picked up by the detector. When contamination is present, it interferes with the electron flow in proportion to the thickness of the contaminant layer enabling measurement by system signal output. OP1000 systems operate in conventional atmospheres on all types of material and detect both organic and inorganic contamination.

  1. Low-Tech Education Threatens the High-Tech Future.

    ERIC Educational Resources Information Center

    Business Week, 1983

    1983-01-01

    Indicating that the quality of scientific/technical education in the United States has been slipping since the brief surge of attention in the decade following Sputnik, discusses the need for upgrading science/technical education. Includes efforts currently under way, including financial support by industry and donations of equipment and computers…

  2. Scientific Toy

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Tensegritoy, inspired by the tensegrity concepts of R. Buckminster Fuller, is an erector set like toy designed to give students an understanding of structural stability. It is used by children, architects, engineers, and teachers. The manufacturer, Tensegrity Systems Corporation, also offers a collapsible point of purchase display which incorporates technology developed for space station trusses described in "NASA Tech Briefs." The tech brief described deployable trusses that can be collapsed into small packages for space shuttle transport, then unfolded in space. As a result, the display occupies a minimum amount of floor space, freight cost savings are substantial and assembly can be completed quickly.

  3. High-tech tools for exercise motivation: use and role of technologies such as the internet, mobile applications, social media, and video games.

    PubMed

    Tate, Deborah F; Lyons, Elizabeth J; Valle, Carmina G

    2015-01-01

    IN BRIEF The majority of patients with type 2 diabetes are not active at recommended levels, and many do not have access to behavior change programs to support lifestyle change. Thus, tools and programs designed to promote the adoption and maintenance of physical activity using technology may be helpful. This article reviews the evidence regarding the use of technology tools such as the Internet, mobile applications, social media, and video games and provides suggestions for evaluating the potential benefit of such tools for behavior change.

  4. High-Tech Tools for Exercise Motivation: Use and Role of Technologies Such as the Internet, Mobile Applications, Social Media, and Video Games

    PubMed Central

    Lyons, Elizabeth J.; Valle, Carmina G.

    2015-01-01

    IN BRIEF The majority of patients with type 2 diabetes are not active at recommended levels, and many do not have access to behavior change programs to support lifestyle change. Thus, tools and programs designed to promote the adoption and maintenance of physical activity using technology may be helpful. This article reviews the evidence regarding the use of technology tools such as the Internet, mobile applications, social media, and video games and provides suggestions for evaluating the potential benefit of such tools for behavior change. PMID:25717278

  5. Spatial-Operator Algebra For Flexible-Link Manipulators

    NASA Technical Reports Server (NTRS)

    Jain, Abhinandan; Rodriguez, Guillermo

    1994-01-01

    Method of computing dynamics of multiple-flexible-link robotic manipulators based on spatial-operator algebra, which originally applied to rigid-link manipulators. Aspects of spatial-operator-algebra approach described in several previous articles in NASA Tech Briefs-most recently "Robot Control Based on Spatial-Operator Algebra" (NPO-17918). In extension of spatial-operator algebra to manipulators with flexible links, each link represented by finite-element model: mass of flexible link apportioned among smaller, lumped-mass rigid bodies, coupling of motions expressed in terms of vibrational modes. This leads to operator expression for modal-mass matrix of link.

  6. Machine Monitor

    NASA Technical Reports Server (NTRS)

    1994-01-01

    When a printing press jams, damage is extensive, repairs are costly, and time and production loss can be expensive. James River Corporation requested G.W. Shelton, a design engineer with Logical Control Systems to solve this problem. Shelton found the solution in a NASA Tech Brief article describing a system of pulley and belt drives. This led to the design of a system that monitors drive components for changes in relative speed that would indicate belt slippage and jam probability. When a combination of variables is not met, an emergency "stop" signal is sent to the press and an alarm is triggered.

  7. Ester-Based Electrolytes for Low-Temperature Li-Ion Cells

    NASA Technical Reports Server (NTRS)

    Smart, Marshall; Bugga, Ratnakumar

    2005-01-01

    Electrolytes comprising LiPF6 dissolved at a concentration of 1.0 M in five different solvent mixtures of alkyl carbonates have been found to afford improved performance in rechargeable lithium-ion electrochemical cells at temperatures as low as -70 C. These and other electrolytes have been investigated in continuing research directed toward extending the lower limit of practical operating temperatures of Li-ion cells. This research at earlier stages, and the underlying physical and chemical principles, were reported in numerous previous NASA Tech Briefs articles, the most recent being Low-EC-Content Electrolytes for Low-Temperature Li-Ion Cells (NPO-30226), NASA Tech Briefs, Vol. 27, No. 1 (January 2003), page 46. The ingredients of the present solvent mixtures are ethylene carbonate (EC), ethyl methyl carbonate (EMC), methyl butyrate (MB), methyl propionate (MP), ethyl propionate (EP), ethyl butyrate (EB), and ethyl valerate (EV). In terms of volume proportions of these ingredients, the present solvent mixtures are 1EC + 1EMC + 8MB, 1EC + 1EMC + 8EB, 1EC + 1EMC + 8MP, 1EC + 1EMC + 8EV, and 1EC + 9EMC. These electrolytes were placed in Liion cells containing carbon anodes and LiNi0.8Co0.2O2 cathodes, and the low-temperature electrical performances of the cells were measured. The cells containing the MB and MP mixtures performed best.

  8. Is the Writing on the Wall for Tabletops?

    NASA Astrophysics Data System (ADS)

    Pantidi, Nadia; Rogers, Yvonne; Robinson, Hugh

    We describe an ethnographic study that explores how low tech and new tech surfaces support participation and collaboration during a workshop breakout session. The low tech surfaces were post-it notes and large sheets of paper. The new tech surfaces were writeable walls and a multi-touch tabletop. Four groups used the different surfaces during three phases: i) brief presentation of position papers and discussion of themes, ii) the creation of a group presentation and iii) a report back session. Participation and collaboration varied depending on the physical, technological and social factors at play when using the different surfaces. We discuss why this is the case, noting how new shareable surfaces may need to be constrained to invite participation in ways that are simply taken for granted because of their familiarity when using low tech materials.

  9. NASA Tech Briefs, January 2001. Volume 25, No. 1

    NASA Technical Reports Server (NTRS)

    2001-01-01

    The topics include: 1) A "Model" of Interactive Engineering; 2) Feature Section: Communications Technology; 3) lnReview; 4) Application Briefs; 5) Submillimeter-Wave Image Sensor; 6) Ultrasonic/Sonic Drill/Corers With Integrated Sensors; 7) Normally Closed, Piezoelectrically Actuated Microvalve; 8) Magnetostrictively Actuated Valves for Cryosurgical Probes; 9) Remote Sensing of Electric Fields in Clouds; 10) Wireless-Communication Headset Subsystem To Enhance Signaling; 11) Power Amplifier With 9 to 13 dB of Gain From 65 to 146 GHz; 12) Humidity Interlock for Protecting a Cooled Laser Crystal; 13) A Lightweight Ambulatory Physiological Monitoring System; 14) Improvements in a Lightning-Measuring Instrument; 15) Broad-Band, Noninvasive Radio-Frequency Current Probe; 16) Web-Based Technology Distributes Lean Models; 17) Software Guides Aeroelastic-Systems Design; and 18) Postprocessing Software for Micromechanics Analysis Code. A Photonics West 2001 Preview Tech Brief supplement to this January 2001 issue is also included.

  10. Applications of aerospace technology in biomedicine. A technology transfer profile: Patient monitoring

    NASA Technical Reports Server (NTRS)

    Murray, D. M.

    1971-01-01

    NASA contributions to cardiovascular monitoring are described along with innovations in intracardiac blood pressure monitoring. A brief overview of the process of NASA technology transfer in patient monitoring is presented and a list of bioinstrumentation tech briefs and the number of requests for technical support is included.

  11. NASA Tech Briefs, November/December 1986, Special Edition

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Topics: Computing: The View from NASA Headquarters; Earth Resources Laboratory Applications Software: Versatile Tool for Data Analysis; The Hypercube: Cost-Effective Supercomputing; Artificial Intelligence: Rendezvous with NASA; NASA's Ada Connection; COSMIC: NASA's Software Treasurehouse; Golden Oldies: Tried and True NASA Software; Computer Technical Briefs; NASA TU Services; Digital Fly-by-Wire.

  12. Rapid and Quiet Drill

    NASA Technical Reports Server (NTRS)

    Sherrit, Stewart; Badescu, Mircea; Bar-Cohen, Yoseph; Chang, Zensheu; Bao, Xiaoqi

    2007-01-01

    This describes aspects of the rapid and quiet drill (RAQD), which is a prototype apparatus for drilling concrete or bricks. The design and basic principle of operation of the RAQD overlap, in several respects, with those of ultrasonic/ sonic drilling and coring apparatuses described in a number of previous NASA Tech Briefs articles. The main difference is that whereas the actuation scheme of the prior apparatuses is partly ultrasonic and partly sonic, the actuation scheme of the RAQD is purely ultrasonic. Hence, even though the RAQD generates considerable sound, it is characterized as quiet because most or all of the sound is above the frequency range of human hearing.

  13. Coordinated Control Of Mobile Robotic Manipulators

    NASA Technical Reports Server (NTRS)

    Seraji, Homayoun

    1995-01-01

    Computationally efficient scheme developed for on-line coordinated control of both manipulation and mobility of robots that include manipulator arms mounted on mobile bases. Applicable to variety of mobile robotic manipulators, including robots that move along tracks (typically, painting and welding robots), robots mounted on gantries and capable of moving in all three dimensions, wheeled robots, and compound robots (consisting of robots mounted on other robots). Theoretical basis discussed in several prior articles in NASA Tech Briefs, including "Increasing the Dexterity of Redundant Robots" (NPO-17801), "Redundant Robot Can Avoid Obstacles" (NPO-17852), "Configuration-Control Scheme Copes With Singularities" (NPO-18556), "More Uses for Configuration Control of Robots" (NPO-18607/NPO-18608).

  14. Unified Approach To Control Of Motions Of Mobile Robots

    NASA Technical Reports Server (NTRS)

    Seraji, Homayoun

    1995-01-01

    Improved computationally efficient scheme developed for on-line coordinated control of both manipulation and mobility of robots that include manipulator arms mounted on mobile bases. Present scheme similar to one described in "Coordinated Control of Mobile Robotic Manipulators" (NPO-19109). Both schemes based on configuration-control formalism. Present one incorporates explicit distinction between holonomic and nonholonomic constraints. Several other prior articles in NASA Tech Briefs discussed aspects of configuration-control formalism. These include "Increasing the Dexterity of Redundant Robots" (NPO-17801), "Redundant Robot Can Avoid Obstacles" (NPO-17852), "Configuration-Control Scheme Copes with Singularities" (NPO-18556), "More Uses for Configuration Control of Robots" (NPO-18607/NPO-18608).

  15. NASA Tech Briefs, August 2010

    NASA Technical Reports Server (NTRS)

    2010-01-01

    Topics covered include: Technology Focus: Mechanical Components; Electronics/Computers; Software; Materials; Mechanics/Machinery; Manufacturing; Bio-Medical; Physical Sciences; Information Sciences; and Books and Reports.

  16. Transferring Technology to Industry

    NASA Technical Reports Server (NTRS)

    Wolfenbarger, J. Ken

    2006-01-01

    This slide presentation reviews the technology transfer processes in which JPL has been involved to assist in transferring the technology derived from aerospace research and development to industry. California Institute of Technology (CalTech), the organization that runs JPL, is the leading institute in patents for all U.S. universities. There are several mechanisms that are available to JPL to inform industry of these technological advances: (1) a dedicated organization at JPL, National Space Technology Applications (NSTA), (2) Tech Brief Magazine, (3) Spinoff magazine, and (4) JPL publications. There have also been many start-up organizations and businesses from CalTech.

  17. NASA Tech Briefs, July 1997. Volume 21, No. 7

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics: Mechanical Components; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Life Sciences.

  18. NASA Tech Briefs, December 1991. Volume 15, No. 12

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences,

  19. NASA Tech Briefs, December 2002

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Topics covered include: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; and Life Sciences.

  20. NASA Tech Briefs, November 1991. Volume 15, No. 11

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics include: Electronic Components & and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, and Mathematics and Information Sciences,

  1. A Virginia Tech MFT Ethics Class Reflects on the Shootings at Virginia Tech

    ERIC Educational Resources Information Center

    Piercy, Fred; Banker, Jamie; Traylor, Ryan; Krug, Sarah; Castanos, Carolina; Cole, Elise; Ciafardini, Anthony J.; Jordal, Christian; Rodgers, Brandon; Stewart, Shelley; Goodwin, Annabelle

    2008-01-01

    The authors of this article include the professor and most of the students in a doctoral course on marriage and family therapy ethical and professional issues that met the semester that a disturbed student shot and killed 32 Virginia Tech students and faculty before killing himself. In this article, we reflect through short essays on issues…

  2. NASA Tech Briefs, November 1997. Volume 21, No. 11

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics covered include: Test and Measurement; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Machinery/Automation; Books and Reports..

  3. NASA Tech Briefs, August 1992. Volume 16, No. 8

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics include: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  4. NASA Tech Briefs, September 1992. Volume 16, No.9

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics include: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  5. NASA Tech Briefs, Summer 1985

    NASA Technical Reports Server (NTRS)

    1985-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  6. NASA Tech Briefs, January 1993. Volume 17, No. 1

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences;

  7. NASA Tech Briefs, November 1992. Volume 16, No. 11

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics include: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences;

  8. NASA Tech Briefs, December 1992. Volume 16, No. 12

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics include: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences;

  9. NASA Tech Briefs, Spring 1985

    NASA Technical Reports Server (NTRS)

    1985-01-01

    Topic include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  10. Mixed-Salt/Ester Electrolytes for Low-Temperature Li+ Cells

    NASA Technical Reports Server (NTRS)

    Smart, Marshall; Bugga, Ratnakumar

    2006-01-01

    Electrolytes comprising, variously, LiPF6 or LiPF6 plus LiBF4 dissolved at various concentrations in mixtures of alkyl carbonates and alkyl esters have been found to afford improved low-temperature performance in rechargeable lithium-ion electrochemical cells. These and other electrolytes have been investigated in a continuing effort to extend the lower limit of operating temperatures of such cells. This research at earlier stages, and the underlying physical and chemical principles, were reported in numerous previous NASA Tech Briefs articles, the most recent being Ester-Based Electrolytes for Low-Temperature Li-Ion Cells (NPO-41097), NASA Tech Briefs, Vol. 29, No. 12 (December 2005), page 59. The ingredients of the solvent mixtures include ethylene carbonate (EC), ethyl methyl carbonate (EMC), methyl butyrate (MB), and methyl propionate (MP). The electrolytes were placed in Li-ion cells containing carbon anodes and LiNi0.8Co0.2O2 cathodes, and the electrical performances of the cells were measured over a range of temperatures down to 60 C. The electrolytes that yielded the best low-temperature performances were found to consist, variously, of 1.0 M LiPF6 + 0.4 M LiBF4 or 1.4 LiPF6 in 1EC + 1EMC + 8MP or 1EC + 1EMC + 8MB, where the concentrations of the salts are given in molar units and the proportions of the solvents are by relative volume.

  11. NASA Tech Briefs, May 2000. Volume 24, No. 5

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics include: Sensors: Test and Measurement; Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Composites and Plastics; Materials; Computer Programs; Mechanics;

  12. NASA Tech Briefs, June 2000. Volume 24, No. 6

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics include: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Test and Measurement; Physical Sciences; Materials; Computer Programs; Computers and Peripherals;

  13. NASA Tech Briefs, October 1989. Volume 13, No. 10

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences

  14. NASA Tech Briefs, February 1990. Volume 14, No. 2

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences

  15. NASA Tech Briefs, January 1990. Volume 14, No. 1

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences

  16. NASA Tech Briefs, November 1989. Volume 13, No. 11

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences

  17. NASA Tech Briefs, September 1989. Volume 13, No. 9

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences.

  18. NASA Tech Briefs, October 1992. Volume 16, No. 10

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics covered include: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication technology; Mathematics and Information Sciences; Life Sciences.

  19. NASA Tech Briefs, December 1989. Volume 13, No. 12

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences.

  20. NASA Tech Briefs, April 1993. Volume 17, No. 4

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Optoelectronics; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences;

  1. NASA Tech Briefs, March 1990. Volume 14, No. 3

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences

  2. NASA Tech Briefs, January 1989. Volume 13, No. 1

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Topics include: Electronic Components & and Circuits. Electronic Systems, A Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences.

  3. NASA Tech Briefs, July 1999. Volume 23, No. 7

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Topics: Test and Measurement; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Machinery/Automation; Bio-Medical; Books and Reports; Semiconductors/ICs.

  4. NASA Tech Briefs, June 1993. Volume 17, No. 6

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Imaging Technology: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  5. NASA Tech Briefs, January 1998. Volume 22, No. 1

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Topics: Sensors/Data Acquisition; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Life Sciences; Books and Reports.

  6. NASA Tech Briefs, November 1993. Volume 17, No. 11

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics covered: Advanced Manufacturing; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  7. NASA Tech Briefs, January 1997. Volume 21, No. 1

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics: Sensors; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Books and Reports.

  8. NASA Tech Briefs, February 1993. Volume 17, No. 2

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Communication Technology; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  9. NASA Tech Briefs, April 1992. Volume 16, No. 4

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics covered include: New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  10. A Virginia Tech MFT ethics class reflects on the shootings at Virginia Tech.

    PubMed

    Piercy, Fred; Banker, Jamie; Traylor, Ryan; Krug, Sarah; Castanos, Carolina; Cole, Elise; Ciafardini, Anthony J; Jordal, Christian; Rodgers, Brandon; Stewart, Shelley; Goodwin, Annabelle

    2008-04-01

    The authors of this article include the professor and most of the students in a doctoral course on marriage and family therapy ethical and professional issues that met the semester that a disturbed student shot and killed 32 Virginia Tech students and faculty before killing himself. In this article, we reflect through short essays on issues related to the tragedy, ethics, and recovery.

  11. NASA Tech Briefs, January 1992. Volume 16, No. 1

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics include: New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Fabrication; Mathematics and Information Sciences; Life Sciences;

  12. NASA Tech Briefs, December 1997. Volume 21, No. 12

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics: Design and Analysis Software; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Manufacturing/Fabrication; Mathematics and Information Sciences; Books and Reports.

  13. NASA Tech Briefs, May 1992. Volume 16, No. 5

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics include: New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  14. NASA Tech Briefs, May 1988. Volume 12, No. 5

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics : New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics ; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  15. NASA Tech Briefs, July 1992. Volume 16, No. 7

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics include: New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  16. NASA Tech Briefs, November 1990. Volume 14, No. 11

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  17. NASA Tech Briefs, March 1992. Volume 16, No. 3

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics include: New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  18. NASA Tech Briefs, April 1990. Volume 14, No. 4

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  19. NASA Tech Briefs, September 1994. Volume 18, No. 9

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics: Sensors; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  20. NASA Tech Briefs, September 1997. Volume 21, No. 9

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics include: Data Acquisition and Analysis; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences.

  1. Recent development of plasma optical systems (invited)

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Goncharov, A. A., E-mail: gonchar@iop.kiev.ua

    2016-02-15

    The article devotes a brief description of the recent development and current status of an ongoing research of plasma optical systems based on the fundamental plasma optical idea magnetic electron isolation, equipotentialization magnetic field lines, and the axi-symmetric cylindrical electrostatic plasma lens (PL) configuration. The experimental, theoretical, and simulation investigations have been carried out over recent years collaboratively between IP NASU (Kiev), LBNL (Berkeley, USA), and HCEI RAS (Tomsk). The crossed electric and magnetic fields inherent the PL configuration that provides the attractive method for establishing a stable plasma discharge at low pressure. Using PL configuration, several high reliability plasmamore » devices were developed. These devices are attractive for many high-tech applications.« less

  2. Scanning Microscopes Using X Rays and Microchannels

    NASA Technical Reports Server (NTRS)

    Wang, Yu

    2003-01-01

    Scanning microscopes that would be based on microchannel filters and advanced electronic image sensors and that utilize x-ray illumination have been proposed. Because the finest resolution attainable in a microscope is determined by the wavelength of the illumination, the xray illumination in the proposed microscopes would make it possible, in principle, to achieve resolutions of the order of nanometers about a thousand times as fine as the resolution of a visible-light microscope. Heretofore, it has been necessary to use scanning electron microscopes to obtain such fine resolution. In comparison with scanning electron microscopes, the proposed microscopes would likely be smaller, less massive, and less expensive. Moreover, unlike in scanning electron microscopes, it would not be necessary to place specimens under vacuum. The proposed microscopes are closely related to the ones described in several prior NASA Tech Briefs articles; namely, Miniature Microscope Without Lenses (NPO-20218), NASA Tech Briefs, Vol. 22, No. 8 (August 1998), page 43; and Reflective Variants of Miniature Microscope Without Lenses (NPO-20610), NASA Tech Briefs, Vol. 26, No. 9 (September 2002) page 6a. In all of these microscopes, the basic principle of design and operation is the same: The focusing optics of a conventional visible-light microscope are replaced by a combination of a microchannel filter and a charge-coupled-device (CCD) image detector. A microchannel plate containing parallel, microscopic-cross-section holes much longer than they are wide is placed between a specimen and an image sensor, which is typically the CCD. The microchannel plate must be made of a material that absorbs the illuminating radiation reflected or scattered from the specimen. The microchannels must be positioned and dimensioned so that each one is registered with a pixel on the image sensor. Because most of the radiation incident on the microchannel walls becomes absorbed, the radiation that reaches the image sensor consists predominantly of radiation that was launched along the longitudinal direction of the microchannels. Therefore, most of the radiation arriving at each pixel on the sensor must have traveled along a straight line from a corresponding location on the specimen. Thus, there is a one-to-one mapping from a point on a specimen to a pixel in the image sensor, so that the output of the image sensor contains image information equivalent to that from a microscope.

  3. NASA Tech Briefs, June 1988. Volume 12, No. 6

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics covered: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  4. LASER Tech Briefs, Winter 1994. Volume 2, No. 1

    NASA Technical Reports Server (NTRS)

    Schnirring, Bill (Editor)

    1994-01-01

    Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, Life Sciences, and Books and reports

  5. NASA Tech Briefs, May 1993. Volume 17, No. 5

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Advanced Composites and Plastics; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  6. NASA Tech Briefs, February 1992. Volume 16, No. 2

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics covered include: New Product Development; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  7. NASA Tech Briefs, Fall 1985. Volume 9, No. 3

    NASA Technical Reports Server (NTRS)

    1985-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  8. NASA Tech Briefs, September 2000. Volume 24, No. 9

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics include: Sensors; Test and Measurement; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Bio-Medical; semiconductors/ICs; Books and Reports.

  9. NASA Tech Briefs, July 1993. Volume 17, No. 7

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Data Acquisition and Analysis: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  10. NASA Tech Briefs, June 1992. Volume 16, No. 6

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Topics covered include: New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  11. NASA Tech Briefs, December 1994. Volume 18, No. 12

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics: Test and Measurement; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  12. NASA Tech Briefs, January 1995. Volume 19, No. 1

    NASA Technical Reports Server (NTRS)

    1995-01-01

    Topics include: Sensors; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences; Books and Reports

  13. NASA Tech Briefs, April 1988. Volume 12, No. 4

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  14. NASA Tech Briefs, June 1996. Volume 20, No. 6

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics: New Computer Hardware; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences;Books and Reports.

  15. NASA Tech Briefs, July 1989. Volume 13, No. 7

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Topics include New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials;;Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  16. NASA Tech Briefs, May 1991. Volume 15, No. 5

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  17. NASA Tech Briefs, January 1991. Volume 15, No. 1

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences;Life Sciences.

  18. NASA Tech Briefs, September 1991. Volume 15, No. 9

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  19. NASA Tech Briefs, March 1996. Volume 20, No. 3

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics: Computer-Aided Design and Engineering; Electronic Components and Cicuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information; Books and Reports.

  20. NASA Tech Briefs, June 1990. Volume 14, No. 6

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  1. NASA Tech Briefs, August 1991. Volume 15, No. 8

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  2. NASA Tech Briefs, February 1991. Volume 15, No. 2

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  3. NASA Tech Briefs, March 1991. Volume 15, No. 3

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  4. NASA Tech Briefs, December 1990. Volume 14, No. 12

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  5. NASA Tech Briefs, September 1996. Volume 20, No. 9

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics: Data Acquisition and Analysis; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Books and Reports.

  6. NASA Tech Briefs, June 1991. Volume 15, No. 6

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  7. NASA Tech Briefs, August 1993. Volume 17, No. 8

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Computer Graphics; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  8. NASA Tech Briefs, September 1993. Volume 17, No. 9

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Microelectronics; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  9. NASA Tech Briefs, September 1999. Volume 23, No. 9

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Topics discussed include: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences;

  10. NASA Tech Briefs, May 1990. Volume 14, No. 5

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  11. NASA Tech Briefs, Winter 1985. Volume 9, No. 4

    NASA Technical Reports Server (NTRS)

    1985-01-01

    Topics covered include: NASA TU Services; New Product Ideas; Electronic Components and Circuits;Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  12. NASA Tech Briefs, March 1993. Volume 17, No. 3

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences;

  13. NASA Tech Briefs, January 1994. Volume 18, No. 1

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics include: Communications Technology; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  14. NASA Tech Briefs, November 1994. Volume 18, No. 11

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics: Advanced Manufacturing; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  15. NASA Tech Briefs, April 1991. Volume 15, No. 4

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  16. NASA Tech Briefs, October 1990. Volume 14, No. 10

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical' Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  17. NASA Tech Briefs, January/February 1986. Volume 10, No. 1

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  18. NASA Tech Briefs, October 1991. Volume 15, No. 10

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  19. NCRVE Change Agent. Shaping the Future of Vocational Education. Volume 4, 1994.

    ERIC Educational Resources Information Center

    NCRVE Change Agent, 1994

    1994-01-01

    The first of four issues in this volume consists of four review articles. "Tech Prep Quality" reviews a guide to total quality management and tech prep. "Specific, Ocean to Ocean" reviews a publication that identifies 10 preliminary plans for implementing tech prep. "...No Single Option" is about a monograph that evaluates tech prep and other…

  20. NASA Tech Briefs, September 1988. Volume 12, No. 8

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  1. NASA Tech Briefs, July/August 1988. Volume 12, No. 7

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  2. NASA Tech Briefs, October 1988. Volume 12, No. 9

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  3. NASA Tech Briefs, July 1991. Volume 15, No. 7

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Topics include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  4. NASA Tech Briefs, March 1987. Volume 11, No. 3

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  5. NASA Tech Briefs, May 1987. Volume 11, No. 5

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  6. NASA Tech Briefs, October 1987. Volume 11, No. 9

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  7. NASA Tech Briefs, August 1997. Volume 21, No. 8

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics:Graphics and Simulation; Mechanical Components; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Books and Reports.

  8. NASA Tech Briefs, June 1989. Volume 13, No. 6

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Topics include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  9. NASA Tech Briefs, February 1987. Volume 11, No. 2

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  10. NASA Tech Briefs, January 1987. Volume 11, No. 2

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  11. NASA Tech Briefs, July 1990. Volume 14, No. 7

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  12. NASA Tech Briefs, August 1990. Volume 14, No. 8

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics covered: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  13. NASA Tech Briefs, April 1987. Volume 11, No. 4

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  14. NASA Tech Briefs, September 1987. Volume 11, No. 8

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  15. NASA Tech Briefs, June 1994. Volume 18, No. 6

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics covered include: Microelectronics; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  16. NASA Tech Briefs, August 1994. Volume 18, No. 8

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics covered include: Computer Hardware; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  17. NASA Tech Briefs, October 1996. Volume 20, No. 10

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics covered include: Sensors; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  18. NASA Tech Briefs, June 1997. Volume 21, No. 6

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics include: Computer Hardware and Peripherals; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Books and Reports.

  19. NASA Tech Briefs, June 1987. Volume 11, No. 6

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  20. NASA Tech Briefs, November 1999. Volume 23, No. 11

    NASA Technical Reports Server (NTRS)

    1999-01-01

    Topics covered include: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Materials; Computer Programs; Mechanics; Machinery/Automation; Physical Sciences; Mathematics and Information Sciences; Books and Reports.

  1. NASA Tech Briefs, August 1989. Volume 13, No. 8

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Topics covered: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  2. Reconfigurable Hardware for Compressing Hyperspectral Image Data

    NASA Technical Reports Server (NTRS)

    Aranki, Nazeeh; Namkung, Jeffrey; Villapando, Carlos; Kiely, Aaron; Klimesh, Matthew; Xie, Hua

    2010-01-01

    High-speed, low-power, reconfigurable electronic hardware has been developed to implement ICER-3D, an algorithm for compressing hyperspectral-image data. The algorithm and parts thereof have been the topics of several NASA Tech Briefs articles, including Context Modeler for Wavelet Compression of Hyperspectral Images (NPO-43239) and ICER-3D Hyperspectral Image Compression Software (NPO-43238), which appear elsewhere in this issue of NASA Tech Briefs. As described in more detail in those articles, the algorithm includes three main subalgorithms: one for computing wavelet transforms, one for context modeling, and one for entropy encoding. For the purpose of designing the hardware, these subalgorithms are treated as modules to be implemented efficiently in field-programmable gate arrays (FPGAs). The design takes advantage of industry- standard, commercially available FPGAs. The implementation targets the Xilinx Virtex II pro architecture, which has embedded PowerPC processor cores with flexible on-chip bus architecture. It incorporates an efficient parallel and pipelined architecture to compress the three-dimensional image data. The design provides for internal buffering to minimize intensive input/output operations while making efficient use of offchip memory. The design is scalable in that the subalgorithms are implemented as independent hardware modules that can be combined in parallel to increase throughput. The on-chip processor manages the overall operation of the compression system, including execution of the top-level control functions as well as scheduling, initiating, and monitoring processes. The design prototype has been demonstrated to be capable of compressing hyperspectral data at a rate of 4.5 megasamples per second at a conservative clock frequency of 50 MHz, with a potential for substantially greater throughput at a higher clock frequency. The power consumption of the prototype is less than 6.5 W. The reconfigurability (by means of reprogramming) of the FPGAs makes it possible to effectively alter the design to some extent to satisfy different requirements without adding hardware. The implementation could be easily propagated to future FPGA generations and/or to custom application-specific integrated circuits.

  3. NASA Tech Briefs, February 1997. Volume 2, No. 2

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics include: Test and Measurement; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  4. NASA Tech Briefs, November 1988. Volume 12, No. 10

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics covered include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  5. NASA Tech Briefs, September/October 1986. Volume 10, No. 5

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  6. NASA Tech Briefs, November 1996. Volume 20, No. 11

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics covered: Video and Imaging; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  7. NASA Tech Briefs, December 1996. Volume 20, No. 12

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics: Design and Analysis Software; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  8. NASA Tech Briefs, May 1996. Volume 20, No. 5

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics include: Video and Imaging;Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  9. NASA Tech Briefs, November/December 1986. Volume 10, No. 6

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  10. NASA Tech Briefs, October 1993. Volume 17, No. 10

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics include: Sensors; esign and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication technology; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  11. NASA Tech Briefs, May 1994. Volume 18, No. 5

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics covered include: Robotics/Automation; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  12. NASA Tech Briefs, May/June 1986. Volume 10, No. 3

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Topics discussed include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  13. NASA Tech Briefs, September 1990. Volume 14, No. 9

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Topics covered include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  14. NASA Tech Briefs, November/December 1987. Volume 11, No. 10

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  15. NASA Tech Briefs, February 1994. Volume 18, No. 2

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics covered include: Test and Measurement; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences; Books and Reports

  16. NASA Tech Briefs, March 1988. Volume 12, No. 3

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; and Life Sciences.

  17. NASA Tech Briefs, July 1996. Volume 20, No. 7

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics covered include: Mechanical Components; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  18. NASA Tech Briefs, January 2000. Volume 24, No. 1

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics include: Data Acquisition; Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Bio-Medical; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Information Sciences; Books and reports.

  19. NASA Tech Briefs, July/August 1987. Volume 11, No. 7

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Topics include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Fabrication Technology; Machinery; Mathematics and Information Sciences; Life Sciences.

  20. NASA Tech Briefs, April 1997. Volume 21, No. 4

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics covered include: Video and Imaging; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  1. NASA Tech Briefs, March/April 1986. Volume 10, No. 2

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Topics covered include: NASA TU Services; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences.

  2. NASA Tech Briefs, February 1988. Volume 12, No. 2

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics covered include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Systems; and Life Sciences.

  3. NASA Tech Briefs, December 1993. Volume 17, No. 12

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Topics covered include: High-Performance Computing; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  4. NASA Tech Briefs, February 2000. Volume 24, No. 2

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics covered include: Test and Measurement; Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Bio-Medical; Mathematics and Information Sciences; Computers and Peripherals.

  5. NASA Tech Briefs, April 2000. Volume 24, No. 4

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics covered include: Imaging/Video/Display Technology; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Bio-Medical; Test and Measurement; Mathematics and Information Sciences; Books and Reports.

  6. NASA Tech Briefs, October 1997. Volume 21, No. 10

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics covered include: Sensors/Imaging; Mechanical Components; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  7. Miniature Intermittent Contact Switch

    NASA Technical Reports Server (NTRS)

    Sword, Antony

    1972-01-01

    This tech brief concerns work to provide a shock-resistant switch capable of being actuated by forces of varying magnitude and direction, primarily for use as a sensor on remote control (tele-operator) and prosthetic devices.

  8. NASA Tech Briefs, January 1988. Volume 12, No. 1

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Topics covered include: New Product Ideas; NASA TU Services; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; and Life Sciences.

  9. NASA Tech Briefs, April 1994. Volume 18, No. 4

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics covered: Advanced Composites and Plastics; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  10. NASA Tech Briefs, March 1994. Volume 18, No. 3

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics include: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  11. NASA Tech Briefs, August 1996. Volume 20, No. 8

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics covered include: Graphics and Simulation; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  12. Pavement Remaining Service Interval [Tech Brief

    DOT National Transportation Integrated Search

    2013-05-01

    This document is a technical summary of the Federal Highway Administration reports, "Reformulated Pavement Remaining Service Life Framework" (FHWA-HRT-13-038) and "Pavement Remaining Service Interval Implementation Guidelines" (FHWA-HRT-13-050). At t...

  13. NASA Tech Briefs, March 2000. Volume 24, No. 3

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics include: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  14. NASA Tech Briefs, March 1997. Volume 21, No. 3

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  15. Manipulating presence influences the magnitude of virtual reality analgesia.

    PubMed

    Hoffman, Hunter G; Sharar, Sam R; Coda, Barbara; Everett, John J; Ciol, Marcia; Richards, Todd; Patterson, David R

    2004-09-01

    Excessive pain during medical procedures performed in unanesthetized patients is frequently reported, but can be reduced with virtual reality (VR) distraction. Increasing the person's illusion of going into the virtual world may increase how effectively VR distracts pain. Healthy volunteers aged 18-20 years participated in a double-blind between-groups design. Each subject received a brief baseline thermal pain stimulus, and the same stimulus again minutes later with either a Low Tech or a High Tech VR distraction. Each subject provided subjective 0-10 ratings of cognitive, sensory and affective components of pain, and rated their illusion of going inside the virtual world. Subjects in the High Tech VR group reported a stronger illusion of going into the virtual world (VR presence) than subjects in the Low Tech VR group, (4.2 vs. 2.5, respectively, P = 0.009) and more pain reduction (reduction of worst pain is 3.1 for High Tech VR vs. 0.7 for Low Tech VR, P < 0.001). Across groups, the amount of pain reduction was positively and significantly correlated with VR presence levels reported by subjects ( r = 0.48 for 'worst pain', P < 0.005).

  16. Industrial applications of nanoparticles.

    PubMed

    Stark, W J; Stoessel, P R; Wohlleben, W; Hafner, A

    2015-08-21

    Research efforts in the past two decades have resulted in thousands of potential application areas for nanoparticles - which materials have become industrially relevant? Where are sustainable applications of nanoparticles replacing traditional processing and materials? This tutorial review starts with a brief analysis on what makes nanoparticles attractive to chemical product design. The article highlights established industrial applications of nanoparticles and then moves to rapidly emerging applications in the chemical industry and discusses future research directions. Contributions from large companies, academia and high-tech start-ups are used to elucidate where academic nanoparticle research has revolutionized industry practice. A nanomaterial-focused analysis discusses new trends, such as particles with an identity, and the influence of modern instrument advances in the development of novel industrial products.

  17. Material Characterization of Field-Cast Connection Grouts : TechBrief

    DOT National Transportation Integrated Search

    2013-01-01

    There is a growing need for durable and resilient highway bridge construction/reconstruction systems that facilitate rapid completion of onsite activities, thus minimizing intrusion on the traveling public. Modular components can provide highquality,...

  18. NASA Tech Briefs, July 1994. Volume 18, No. 7

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics covered include: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports

  19. FHWA LTBP Bridge Performance Primer

    DOT National Transportation Integrated Search

    2014-02-01

    This TechBrief defines bridge performance and discusses the importance of measuring performance and current practices for doing so. It identifies key issues to improving performance measures and the role the Long-Term Bridge Performance (LTBP) Progra...

  20. NASA Tech Briefs, July/August 1986. Volume 10, No. 4

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Topic include: NASA TU Serv1ces; New Product Ideas; Electronic Components and Circuits; Electronic Systems; Materials; Computer Programs; Mechanics; Physical Sciences; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences. 3

  1. Protocol to identify incompatible combinations of concrete materials : tech brief.

    DOT National Transportation Integrated Search

    2006-07-01

    For this project, incompatibility of concrete materials is : defined as interactions between acceptable materials that result in unexpected or unacceptable performance. The most common problems are associated with premature stiffening (rapid sl...

  2. FHWA LTBP Industry Day

    DOT National Transportation Integrated Search

    2014-02-01

    This TechBrief summarizes Long-Term Bridge Performance (LTBP) Industry Day, held July 16, 2012, a public meeting sponsored by the Federal Highway Administrations (FHWA) LTBP Program. Industry Day provided a platform for the LTBP Program to activel...

  3. Performance-Based Contractor Prequalification as an Alternative to Performance Bonds [Tech Brief

    DOT National Transportation Integrated Search

    2014-01-01

    State transportation departments must rely on private industry construction contractors to build, rehabilitate, and replace their infrastructure assets. The Federal Highway Administration (FHWA) is interested in ensuring that State transportation dep...

  4. NASA Tech Briefs, May 1997. Volume 21, No. 5

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Topics covered include: Advanced Composites, Plastics and Metals; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  5. NASA Tech Briefs, November 2000. Volume 24, No. 11

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics covered include: Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Test and Measurement; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Data Acquisition.

  6. NASA Tech Briefs, April 1996. Volume 20, No. 4

    NASA Technical Reports Server (NTRS)

    1996-01-01

    Topics covered include: Advanced Composites and Plastics; Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information; Books and Reports.

  7. NASA Tech Briefs, October 1994. Volume 18, No. 10

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Topics: Data Acquisition and Analysis; Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences; Life Sciences; Books and Reports

  8. Promoting Tech Schools within Your Community

    ERIC Educational Resources Information Center

    Nikirk, Martin

    2010-01-01

    This article describes a number of promotional events and practices that the author's school engages in. The author hopes that his school's experiences will serve as an inspiration and useful model for other "Tech Directions" readers. There are many methods for successfully promoting one's tech program. Two key strategies are: (1) Connect in…

  9. Ramp management and control handbook

    DOT National Transportation Integrated Search

    1999-03-01

    Tech Brief: Description study of driving simulator study to assess truck driver fatigue or alertness as affected by non-driving, but on-duty activities, such as loading/unloading a vehicle. It also examined the effects of driver performance on extend...

  10. Safety evaluation of access management policies and techniques, TechBrief

    DOT National Transportation Integrated Search

    2015-08-01

    Access management is the process that provides (or manages) access to land development while simultaneously preserving the flow of traffic on the surrounding road network for safety, capacity, and speed. Access management provides important benefits ...

  11. Durability of geosynthetics for highway applications

    DOT National Transportation Integrated Search

    2001-01-01

    The research results described in this TechBrief are from four volumes on the subject of durability of geosynthetics for highway applications. Various aspects of geosynthetic durability were addressed in order to develop procedures that could be used...

  12. Travtek Evaluation Task C3: Camera Car Study

    DOT National Transportation Integrated Search

    1998-11-01

    A "biometric" technology is an automatic method for the identification, or identity verification, of an individual based on physiological or behavioral characteristics. The primary objective of the study summarized in this tech brief was to make reco...

  13. Assessing Pavement Surface Splash and Spray Impact on Road Users

    DOT National Transportation Integrated Search

    2015-10-01

    This TechBrief describes the development of an assessment tool to characterize the propensity of highway sections to generate splash and spray during rainfall and the impact of splash and spray on road users.

  14. Guidelines for establishing and maintaining construction quality databases : tech brief.

    DOT National Transportation Integrated Search

    2006-12-01

    Construction quality databases contain a variety of construction-related data that characterize the quality of materials and workmanship. The primary purpose of construction quality databases is to help State highway agencies (SHAs) assess the qualit...

  15. Colored entrance treatments for rural traffic calming : tech brief.

    DOT National Transportation Integrated Search

    2013-10-01

    Small rural communities often lack the expertise and resources necessary to address speeding and the persistent challenge of slowing high-speed through traffic. The entrances to communities are especially problematic given that drivers must transitio...

  16. Homemade Solar Systems

    NASA Technical Reports Server (NTRS)

    1981-01-01

    Through the use of NASA Tech Briefs, Peter Kask, was able to build a solarized domestic hot water system. Also by applying NASA's solar energy design information, he was able to build a swimming pool heating system with minimal outlay for materials.

  17. Durability of geosynthetics for highway applications : Tech brief.

    DOT National Transportation Integrated Search

    2000-01-01

    The research results described herein are included in four volumes on the : subject of Durability of Geosynthetics for Highway Applications. Various : aspects of geosynthetic durability were addressed in order to develop : procedures that could be us...

  18. NASA Tech Briefs, August 2000. Volume 24, No. 8

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics include: Simulation/Virtual Reality; Test and Measurement; Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Medical Design.

  19. Comparison Of Rehabilitation Strategies For AC Pavements

    DOT National Transportation Integrated Search

    2000-11-01

    This TechBrief summarizes the results of a study of the Specific Pavement Study 5 (SPS-5) experiment entitled, "Performance of Rehabilitated Asphalt Concrete Pavements in the LTPP Experiments--Data Collected Through February 1997." The study document...

  20. Virginia Tech Researchers Study Effects of Shootings on Their Campus

    ERIC Educational Resources Information Center

    Gravois, John

    2008-01-01

    This article reports how researchers at Virginia Tech, working in a variety of disciplines, are studying the long-term effects of the campus killings 10 months ago. After the killings, administrators at Virginia Tech realized that their normal institutional-review process for research proposals was not sufficient to deal with the likely onslaught…

  1. TechTrends 2010-2015: A Content Analysis

    ERIC Educational Resources Information Center

    Stauffer, Eric

    2017-01-01

    This study is a content analysis of articles published within the journal "TechTrends" from 2000 to 2015. The study reveals that the publication "TechTrends" has increased the overall number of peer reviewed original papers over the last 6 years. The author describes the proportion of these original papers per volume and…

  2. Selecting candidate structures for lithium treatment : what to provide the petrographer along with concrete specimens : tech brief.

    DOT National Transportation Integrated Search

    2006-02-01

    The process of selecting candidate structures (and : appropriate components of structures) for lithium treatment : invariably involves sampling one or several components : of the structures for laboratory investigations, particularly : petrographic e...

  3. Safety edge crash modification factors : tech brief.

    DOT National Transportation Integrated Search

    2016-08-01

    The Safety Edge is a relatively low-cost : countermeasure that can be applied : in both asphalt and concrete paving : operations. The Safety Edge has been : promoted as a low-cost countermeasure : to reduce the frequency and severity : of rural roadw...

  4. Corrosion Monitoring Research of New York City Bridges : TechBrief

    DOT National Transportation Integrated Search

    2013-12-01

    Understanding unsaturated expansive soil has always been a major challenge for soil scientists and engineers. Due to presence of high quantity of montmorillonite mineral in the Moreland clay in northern Louisiana, structural damage due to soil heave/...

  5. Center islands with raised curbing for rural traffic calming : tech brief.

    DOT National Transportation Integrated Search

    2013-02-01

    Small rural communities often lack the expertise and resources necessary to address speeding and the persistent challenge of slowing high-speed through traffic. The entrances to communities are especially problematic given that drivers must transitio...

  6. CHE At Georgia Tech: A Period of Transition.

    ERIC Educational Resources Information Center

    Poehlein, Gary W.

    1980-01-01

    Presents information on the Georgia Institute of Technology. This information includes: (1) a brief history of the institute; (2) names of the faculty members of the chemistry and metallurgy divisions; (3) undergraduate program; and (4) graduate program. (HM)

  7. Pavement Structural Evaluation at the Network Level [Tech Brief

    DOT National Transportation Integrated Search

    2016-03-01

    This document is a technical summary of the Federal Highway Administration (FHWA) report, Pavement Structural Evaluation at the Network Level (FHWA-HRT-15-074). It addresses the use of traffic speed deflection devices for the structural evaluation of...

  8. NASA Tech Briefs, February 1989. Volume 13, No. 2

    NASA Technical Reports Server (NTRS)

    1989-01-01

    This issue contains a special feature on shaping the future with Ceramics. Other topics include: Electronic Components & and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences,

  9. Traffic control device conspicuity, TechBrief

    DOT National Transportation Integrated Search

    2013-09-01

    The conspicuity of a traffic control device (TCD) is defined as the probability that the device will be noticed. However, there is no agreed-upon measure of what constitutes being noticed. Various measures such as eye fixations, recall, and other ver...

  10. NASA Tech Briefs, July 2000. Volume 24, No. 7

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Topics covered include: Data Acquisition; Computer-Aided Design and Engineering; Electronic Components and Circuits; Electronic Systems; Test and Measurement; Physical Sciences; Materials; Computer Programs; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Mathematics and Information Sciences; Life Sciences; Books and Reports.

  11. Robotic System for Condition Assessment of Concrete Bridge Decks : Data Driven Decisions [Tech Brief

    DOT National Transportation Integrated Search

    2012-12-11

    In the United States, the stewardship and management of approximately 599,000 bridges present ongoing planning, operational, maintenance, and economic challenges for Federal, State, and local transportation agencies. To help overcome these challenges...

  12. Impact of newer self-monitoring technology and brief phone-based intervention on weight loss: A randomized pilot study.

    PubMed

    Ross, Kathryn M; Wing, Rena R

    2016-08-01

    Despite the proliferation of newer self-monitoring technology (e.g., activity monitors and smartphone apps), their impact on weight loss outside of structured in-person behavioral intervention is unknown. A randomized, controlled pilot study was conducted to examine efficacy of self-monitoring technology, with and without phone-based intervention, on 6-month weight loss in adults with overweight and obesity. Eighty participants were randomized to receive standard self-monitoring tools (ST, n = 26), technology-based self-monitoring tools (TECH, n = 27), or technology-based tools combined with phone-based intervention (TECH + PHONE, n = 27). All participants attended one introductory weight loss session and completed assessments at baseline, 3 months, and 6 months. Weight loss from baseline to 6 months differed significantly between groups P = 0.042; there was a trend for TECH + PHONE (-6.4 ± 1.2 kg) to lose more weight than ST (-1.3 ± 1.2 kg); weight loss in TECH (-4.1 ± 1.4 kg) was between ST and TECH + PHONE. Fewer ST (15%) achieved ≥5% weight losses compared with TECH and TECH + PHONE (44%), P = 0.039. Adherence to self-monitoring caloric intake was higher in TECH + PHONE than TECH or ST, Ps < 0.05. These results suggest use of newer self-monitoring technology plus brief phone-based intervention improves adherence and weight loss compared with traditional self-monitoring tools. Further research should determine cost-effectiveness of adding phone-based intervention when providing self-monitoring technology. © 2016 The Obesity Society.

  13. The Debreather and NuTech: A Reply to Kleespies

    ERIC Educational Resources Information Center

    Ogden, Russel D.

    2010-01-01

    This article responds to Phillip Kleespies's (2010/this issue) commentary on NuTech fieldworkers and their use of the debreather. Non-medical assistance with suicide raises legitimate concerns about accountability, public safety, and care for those who are suffering. Given that suicide is not a crime, an outcome of the NuTech movement may be that…

  14. Nondestructive Inspection Protocol for Reinforced Concrete Barriers [Tech Brief

    DOT National Transportation Integrated Search

    2014-09-01

    Reinforced concrete barriers are generally anchored to the deck of a bridge or retaining wall using reinforcing steel protruding from the main structure or by anchored bars or bolts added during retrofits. Corrosion of steel bars or bolts can weaken ...

  15. Friction Angles of Open-Graded Aggregates from Large-Scale Direct Shear Testing : TechBrief

    DOT National Transportation Integrated Search

    2013-07-08

    State and local transportation agencies frequently use opengraded aggregates for wall, roadway, and bridge construction. The primary advantages of using this type of material in wall and abutment applications are ease of constructability, lighter in-...

  16. Slip and creep of thermal spray coatings : [tech brief].

    DOT National Transportation Integrated Search

    2014-09-01

    All steel bridge systems and their components need some level : of corrosion protection to assure a serviceable life. One of two : approaches is typically used: either the bridge component is : fabricated from a corrosion-resistant alloy, or the stee...

  17. Evaluation of Safety, Design, and Operation of Shared-Use Paths

    DOT National Transportation Integrated Search

    2006-03-01

    This TechBrief summarizes the final report of the same title (FHWA-HRT-05-137). Shared-use paths are paved, off-street travelways that serve bicyclists, pedestrians, and other nonmotorized modes of travel. The Federal Highway Administration (FHWA) ha...

  18. Lightweight Concrete : Mechanical Properties : TechBrief

    DOT National Transportation Integrated Search

    2013-06-01

    There is a limited amount of test data on the mechanical properties of high-strength lightweight concrete (LWC) with a concrete unit weight (wc) between that of traditional LWC and normal weight concrete (NWC). Concrete with a wc in this range is als...

  19. Construction Quality Assurance for Federally Funded Local Public Agency Projects

    DOT National Transportation Integrated Search

    2015-03-01

    The purpose of this TechBrief is to summarize a comprehensive investigation of current construction QA practices from both SHA and LPA perspectives undertaken in 2012 and to present recommendations from this analysis. The review included a content an...

  20. The universal simple aging test, TechBrief

    DOT National Transportation Integrated Search

    2016-05-01

    The USAT is a new thin-film (300 m) short- and longterm aging test developed by Western Research Institute (WRI), with funding and guidance provided by the Federal Highway Administration (FHWA). USAT is proposed as an alternative to standard RTFO a...

  1. Novel Alternative Cementitious Maerials for Development of the Next Generation of Sustainable Transportation Infrastructure[Tech Brief

    DOT National Transportation Integrated Search

    2015-10-01

    Georgia Institute of Technology and collaborators from Oklahoma State University, Tourney Consulting, and the Army Corps of Engineers, for an Exploratory Advanced Research (EAR) Program project funded by the Federal Highway Administrations (FHWA...

  2. Performance trends of rehabilitated AC pavements

    DOT National Transportation Integrated Search

    2000-10-01

    The General Pavement Study (GPS) 6 experiment, "AC Overlay of AC Pavements," involves pavement test sections where an asphalt concrete (AC) overlay was placed on an existing AC pavement. This TechBrief summarizes the results of a study of the GPS-6 e...

  3. Quantification of smoothness index differences related to LTPP equipment type : tech brief.

    DOT National Transportation Integrated Search

    2006-07-01

    Researchers in the Long-Term Pavement Performance : (LTPP) program are conducting a major data collection : effort. They are using an inertial profiler to collect longitudinal : profile data at regular intervals on two wheelpaths : located along the ...

  4. Safety applications of intelligent transportation systems in Europe and Japan.

    DOT National Transportation Integrated Search

    1998-08-01

    This tech brief presents an FHWA study that addressed the adequacy of both public and private parking facilities nationwide. The steady growth in trucking nationwide appears to have increased the demand for rest areas along the nation's highways. Com...

  5. Safety evaluation of wet-reflective pavement markings : tech brief.

    DOT National Transportation Integrated Search

    2015-12-01

    The Federal Highway Administration (FHWA) organized : 38 States for the FHWA Evaluation of Low-Cost Safety : Improvements Pooled Fund Study as part of its strategic : highway safety plan support effort. The purpose of the : study is to evaluate the s...

  6. COSMIC monthly progress report

    NASA Technical Reports Server (NTRS)

    1994-01-01

    Activities of the Computer Software Management and Information Center (COSMIC) are summarized for the month of May 1994. Tables showing the current inventory of programs available from COSMIC are presented and program processing and evaluation activities are summarized. Nine articles were prepared for publication in the NASA Tech Brief Journal. These articles (included in this report) describe the following software items: (1) WFI - Windowing System for Test and Simulation; (2) HZETRN - A Free Space Radiation Transport and Shielding Program; (3) COMGEN-BEM - Composite Model Generation-Boundary Element Method; (4) IDDS - Interactive Data Display System; (5) CET93/PC - Chemical Equilibrium with Transport Properties, 1993; (6) SDVIC - Sub-pixel Digital Video Image Correlation; (7) TRASYS - Thermal Radiation Analyzer System (HP9000 Series 700/800 Version without NASADIG); (8) NASADIG - NASA Device Independent Graphics Library, Version 6.0 (VAX VMS Version); and (9) NASADIG - NASA Device Independent Graphics Library, Version 6.0 (UNIX Version). Activities in the areas of marketing, customer service, benefits identification, maintenance and support, and dissemination are also described along with a budget summary.

  7. Peace at Virginia Tech; A LEAP to Promote the Liberal Arts

    ERIC Educational Resources Information Center

    Wilson, Robin; Wasley, Paula

    2008-01-01

    This article reports that a Virginia Tech professor whose wife was among 32 people killed by a student gunman last year will become director of the university's new Center for Peace Studies and Violence Prevention. Jerzy Nowak will give up his job as chairman of Tech's horticulture department to take the new post on July 1. His wife, Jocelyne…

  8. Virginia Tech Was Slow to Respond to Gunman, Panel Finds

    ERIC Educational Resources Information Center

    Fischer, Karin; Wilson, Robin

    2007-01-01

    This article reports on the findings of the state panel on the Virginia Tech massacre. A state panel that investigated last spring's massacre at Virginia Tech has issued a harshly worded report that says the university erred in the way it handled a mentally disabled student who became a killer and in how it dealt with the immediate aftermath of…

  9. The Effects Of Age, Spatial Ability, And Navigational Information On Navigational Performance

    DOT National Transportation Integrated Search

    1999-08-01

    Commercial motor vehicle (CMV) driver inattention, particularly that due to fatigue, is widely recognized as an important safety issue in the transportation industry. This tech brief summarizes an Office of Motor Carrier and Highway Safety study to i...

  10. FHWA LTBP Workshop to Identify Bridge Substructure Performance Issues

    DOT National Transportation Integrated Search

    2013-06-01

    This TechBrief provides an overview of the proceedings and findings of the "FHWA Workshop to Identify Bridge Substructure Performance Issues" held in Orlando, Florida, from March 4 to 6, 2010. The purpose of the workshop was to consider overall bridg...

  11. Program for transfer research and impact studies

    NASA Technical Reports Server (NTRS)

    Kottenstette, J. P.; Rusnak, J. J.; Staskin, E. R.

    1972-01-01

    The progress made in achieving TRIS research objectives during the first six months of 1972 is reviewed. The Tech Brief-Technical Support Package Program and technology transfer profiles are presented along with summaries of technology transfer in nondestructive testing, and visual display systems.

  12. Rural Public Transportation Technologies: User Needs and Applications. Tech Brief.

    DOT National Transportation Integrated Search

    1998-09-01

    Rural Intelligent Transportation Systems (ITS) have the ability to meet the needs of travelers in and through rural areas as well as the needs of agencies responsible for the operation and maintenance of rural transportation systems. To assist in the...

  13. Stress and fatigue effects of driving longer combination vehicles

    DOT National Transportation Integrated Search

    2000-07-01

    This Tech Brief summarizes the final report of a study by the same title, which was conducted as a part of a major program by the Federal Highway Administration to investigate commercial driver fatigue in commercial motor vehicle (CMV) operations. Th...

  14. Eye-activity measures of fatigue and napping as a fatigue countermeasure : tech brief.

    DOT National Transportation Integrated Search

    2011-08-01

    This report presents the test plan for collecting and analyzing safety data for the Atlanta Congestion Reduction Demonstration (CRD) under the United States Department of Transportation (U.S. DOT) Urban Partnership Agreement (UPA) and CRD Programs. T...

  15. Pavement thickness design for local roads in Iowa : tech brief.

    DOT National Transportation Integrated Search

    2010-01-01

    The main objectives of this research are to: 1) identify the most critical design input parameters, 2) determine the minimum pavement thickness, and 3) develop new pavement design and sensitivity analysis (PD&SA) software which can provide the most a...

  16. PERCLOS : a valid psychophysiological measure of alertness as assessed by psychomotor vigilance

    DOT National Transportation Integrated Search

    1998-10-01

    This Tech Brief summarizes an Intelligent Transportation System (ITS) study titled "Evaluation of Techniques for Ocular Measurement as an Index of Fatigue and as the Basis for Alertness Management." The study was funded in part by the Federal Highway...

  17. Safety evaluation of intersection conflict warning systems (ICWS), TechBrief

    DOT National Transportation Integrated Search

    2016-02-02

    The Federal Highway Administration (FHWA) organized 40 States to participate in the FHWA Evaluation of LowCost Safety Improvements Pooled Fund Study (ELCSI-PFS) as part of its strategic highway safety plan support effort. The goal of the ELCSI-PFS re...

  18. NASA Tech Briefs, May 1989. Volume 13, No. 5

    NASA Technical Reports Server (NTRS)

    1989-01-01

    This issue contains a special feature on the flight station of the future, discussing future enhancements to Aircraft cockpits. Topics include: Electronic Components and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, and Mathematics and Information Sciences.

  19. Safety evaluation of centerline plus shoulder rumble strips, TechBrief

    DOT National Transportation Integrated Search

    2015-09-01

    The Federal Highway Administration (FHWA) organized 37 States to participate in the FHWA Evaluation of Low-Cost Safety Improvements Pooled Fund Study as part of its strategic highway safety plan support effort. The purpose of the study was to evaluat...

  20. Safety evaluation of STOP AHEAD pavement markings TechBrief

    DOT National Transportation Integrated Search

    2008-03-01

    The Federal Highway Administration (FHWA) organized 26 States to participate in the FHWA Low-Cost Safety Improvements Pooled Fund Study as part of its strategic highway safety plan support effort. The purpose of the study is to evaluate the safety ef...

  1. Wood Products Analysis

    NASA Technical Reports Server (NTRS)

    1990-01-01

    Structural Reliability Consultants' computer program creates graphic plots showing the statistical parameters of glue laminated timbers, or 'glulam.' The company president, Dr. Joseph Murphy, read in NASA Tech Briefs about work related to analysis of Space Shuttle surface tile strength performed for Johnson Space Center by Rockwell International Corporation. Analysis led to a theory of 'consistent tolerance bounds' for statistical distributions, applicable in industrial testing where statistical analysis can influence product development and use. Dr. Murphy then obtained the Tech Support Package that covers the subject in greater detail. The TSP became the basis for Dr. Murphy's computer program PC-DATA, which he is marketing commercially.

  2. Regional ITS architecture guidance : developing, using, and maintaining an ITS architecture for your region

    DOT National Transportation Integrated Search

    1998-08-01

    The purpose of this TechBrief is to discuss one of the Long Term Pavement Performance (LTPP) program's stringent data requirements - site-specific measurements for estimating pavement loadings - and to illustrate the effects of traffic loading data e...

  3. Open Source Surrogate Safety Assessment Model, 2017 Enhancement and Update: SSAM Version 3.0 [Tech Brief

    DOT National Transportation Integrated Search

    2016-11-17

    The ETFOMM (Enhanced Transportation Flow Open Source Microscopic Model) Cloud Service (ECS) is a software product sponsored by the U.S. Department of Transportation in conjunction with the Microscopic Traffic Simulation Models and SoftwareAn Op...

  4. Accelerated Determination of ASR Susceptibility during Concrete Prism Testing through Nonlinear Resonance Ultrasonic Spectroscopy : TechBrief

    DOT National Transportation Integrated Search

    2013-10-01

    The research has been conducted on laboratory-cast concrete prism specimens containing both fine and coarse aggregates obtained from different sources to provide a spectrum of reactivity for assessment through the developed NIRAS technique. The NIRAS...

  5. Aerospace Systems Technical Research Operation Services (ASTROS) Industry Day (Briefing Charts)

    DTIC Science & Technology

    2014-07-01

    Integrated Motor Life Management AFM 315E – Green Propellant MCAT – Missile Component Advanced Tech EP – Electric Propulsion Distribution A...service life estimate •Distribution A: Approved for public release; unlimited distribution 23 MCAT (Motor Component Assessment Technology) What are

  6. Magnetic-based NDE of prestressed and post-tensioned concrete members : the MFL system : tech brief.

    DOT National Transportation Integrated Search

    1997-02-01

    This report assesses the effectiveness of vehicle retirement programs in reducing emissions from the motor vehicle fleets, as well as examining the effect of a program's timing on the magnitude of these reductions. First, the eastern Massachusetts no...

  7. Optimization of Grade 100 High-Performance Steel Butt Welds [Tech Brief

    DOT National Transportation Integrated Search

    2013-11-01

    In the development of the high performance steels (HPS) grades, three advisory groups were formed to oversee and guide the development of the steels in terms of their design, welding, and corrosion aspects. One of the aspects considered by the Weldin...

  8. Curl and Warp Analysis of the LTPP SPS-2 Site in Arizona : TechBrief

    DOT National Transportation Integrated Search

    2013-05-01

    Variability in the roughness levels of jointed Portland cement concrete (PCC) pavements can often be observed over short periods of time. This study demonstrated specialized analyses for quantifying the effect of curl and warp on the roughness of joi...

  9. Splice length of prestressing strand in field-cast ultra-high performance concrete connections, TechBrief

    DOT National Transportation Integrated Search

    2014-02-02

    The objective of this research was to determine the lap splice length of untensioned prestressing strand in field-cast ultrahigh performance concrete (UHPC). This document is a technical summary of the Federal Highway Administration report, Splice Le...

  10. NASA Tech Briefs, March 1989. Volume 13, No. 3

    NASA Technical Reports Server (NTRS)

    1989-01-01

    This issue's special features cover the NASA inventor of the year, and the other nominees for the year. Other Topics include: Electronic Components & and Circuits. Electronic Systems, Physical Sciences, Materials, Computer Programs, Mechanics, Machinery, Fabrication Technology, Mathematics and Information Sciences, and Life Sciences

  11. National evaluation of the TMC applications of archived data operational test -- ADMS Virginia

    DOT National Transportation Integrated Search

    1999-01-01

    As a part of its risk management efforts, the Office of Motor Carriers sponsored a risk-based evaluation of roadside violations. This tech brief summarizes the study final report. The evaluation sought to categorize each commercial motor vehicle (CMV...

  12. Improved guidance for users of the 1993 AASHTO flexible pavement design procedures : LTPP TechBrief

    DOT National Transportation Integrated Search

    1997-08-01

    A key design challenge faced by engineers using the 1993 AASHTO Guide for Design of Pavement Structures (AASHTO Guide) is the determination of appropriate design parameters for the subgrade and pavement materials. The Long-Term Pavement Performance (...

  13. Heat Recovery System

    NASA Technical Reports Server (NTRS)

    1984-01-01

    Ball Metal's design of ducting and controls for series of roof top heat exchangers was inspired by Tech Briefs. Heat exchangers are installed on eight press and coating lines used to decorate sheet metal. The heat recovery system provides an estimated energy savings of more than $250,000 per year.

  14. Surrogate Safety Assessment Model (SSAM), TechBrief

    DOT National Transportation Integrated Search

    2008-05-01

    A conflict is a scenario where two road users will likely collide without evasive action. illustrates an example of a conflict, where a vehicle is angling across two lanes to the left-turn bay and has abruptly cut in front of another vehicle that mus...

  15. NASA Tech Briefs, Spring 1976. Volume 1, No. 1

    NASA Technical Reports Server (NTRS)

    1976-01-01

    Topics covered include : Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; and Mathematics and Information Sciences. Also included are NEW PRODUCT IDEAS: A summary of selected innovations of value to manufacturers for the development of new products.

  16. Psychological and Ethical Considerations Concerning the Debreather and Assisted Suicide: A Commentary on Ogden

    ERIC Educational Resources Information Center

    Kleespies, Phillip M.

    2010-01-01

    This article offers a commentary on the report by Russel Ogden (2010/this issue) on the use of the "debreather" for suicide assistance by the NuTech (or New Technologies for Self-Deliverance) program. The emergence of NuTech is set within its historical and political context. Nu Tech is criticized for its anarchic and extreme advocacy of…

  17. Virtual reality helmet display quality influences the magnitude of virtual reality analgesia.

    PubMed

    Hoffman, Hunter G; Seibel, Eric J; Richards, Todd L; Furness, Thomas A; Patterson, David R; Sharar, Sam R

    2006-11-01

    Immersive Virtual Reality (VR) distraction can be used in addition to traditional opioids to reduce procedural pain. The current study explored whether a High-Tech-VR helmet (ie, a 60-degree field-of-view head-mounted display) reduces pain more effectively than a Low-Tech-VR helmet (a 35-degree field-of-view head-mounted display). Using a double-blind between-groups design, 77 healthy volunteers (no patients) aged 18-23 were randomly assigned to 1 of 3 groups. Each subject received a brief baseline thermal pain stimulus, and the same stimulus again minutes later while in SnowWorld using a Low-Tech-VR helmet (Group 1), using a High-Tech-VR helmet (Group 2), or receiving no distraction (Group 3, control group). Each participant provided subjective 0-10 ratings of cognitive, sensory, and affective components of pain, and amount of fun during the pain stimulus. Compared to the Low-Tech-VR helmet group, subjects in the High-Tech-VR helmet group reported 34% more reduction in worst pain (P < .05), 46% more reduction in pain unpleasantness (P = .001), 29% more reduction in "time spent thinking about pain" (P < .05), and 32% more fun during the pain stimulus in VR (P < .05). Only 29% of participants in the Low-Tech helmet group, as opposed to 65% of participants in the High-Tech-VR helmet group, showed a clinically significant reduction in pain intensity during virtual reality. These results highlight the importance of using an appropriately designed VR helmet to achieve effective VR analgesia (see ). Pain during medical procedures (eg, burn wound care) is often excessive. Adjunctive virtual reality distraction can substantially reduce procedural pain. The results of the present study show that a higher quality VR helmet was more effective at reducing pain than a lower quality VR helmet.

  18. Role of driver hearing in commercial motor vehicle operation : an evaluation of the FHWA hearing requirement

    DOT National Transportation Integrated Search

    1998-11-01

    The Federal Highway Administration (FHWA) currently requires that all commercial motor vehicle (CMV) drivers have a specified minimum level of hearing to drive in interstate commerce. This tech brief summarizes an FHWA study of the same title that ev...

  19. Telecommunication Networks. Tech Use Guide: Using Computer Technology.

    ERIC Educational Resources Information Center

    Council for Exceptional Children, Reston, VA. Center for Special Education Technology.

    One of nine brief guides for special educators on using computer technology, this guide focuses on utilizing the telecommunications capabilities of computers. Network capabilities including electronic mail, bulletin boards, and access to distant databases are briefly explained. Networks useful to the educator, general commercial systems, and local…

  20. Hearing Impairments. Tech Use Guide: Using Computer Technology.

    ERIC Educational Resources Information Center

    Council for Exceptional Children, Reston, VA. Center for Special Education Technology.

    One of nine brief guides for special educators on using computer technology, this guide focuses on advances in electronic aids, computers, telecommunications, and videodiscs to assist students with hearing impairments. Electronic aids include hearing aids, telephone devices for the deaf, teletypes, closed captioning systems for television, and…

  1. Computer Access. Tech Use Guide: Using Computer Technology.

    ERIC Educational Resources Information Center

    Council for Exceptional Children, Reston, VA. Center for Special Education Technology.

    One of nine brief guides for special educators on using computer technology, this guide focuses on access including adaptations in input devices, output devices, and computer interfaces. Low technology devices include "no-technology" devices (usually modifications to existing devices), simple switches, and multiple switches. High technology input…

  2. Evaluation of LTPP Climatic Data for Use in Mechanistic-Empirical Pavement Design Guide (MEPDG) Calibration and Other Pavement Analysis

    DOT National Transportation Integrated Search

    2015-02-01

    This TechBrief describes evaluating the use of the Modern-Era Retrospective Analysis for Research and Applications (MERRA) product as an alternative climatic data source for the Mechanistic-Empirical Pavement Design Guide (MEPDG) and other transporta...

  3. Pavement treatment effectiveness, 1995 SPS-3 and SPS-4 site evaluations, national report : LTPP TechBrief

    DOT National Transportation Integrated Search

    1997-06-01

    The SPS-3 and SPS-4 experiments were constructed in 1990 under the : Strategic Highway Research Program (SHRP) to evaluate the effectiveness of and to determine the optimum timing for applying preventive maintenance treatments for flexible and rigid ...

  4. Folded Resonant Horns for Power Ultrasonic Applications

    NASA Technical Reports Server (NTRS)

    Sherrit, Stewart; Askins, Stephen; Gradziel, Michael; Bao, Xiaoqi; Chang, Zensheu; Dolgin, Benjamin; Bar-Cohen, Yoseph; Peterson, Tom

    2003-01-01

    Folded horns have been conceived as alternatives to straight horns used as resonators and strain amplifiers in power ultrasonic systems. Such systems are used for cleaning, welding, soldering, cutting, and drilling in a variety of industries. In addition, several previous NASA Tech Briefs articles have described instrumented drilling, coring, and burrowing machines that utilize combinations of sonic and ultrasonic vibrational actuation. The main advantage of a folded horn, relative to a straight horn of the same resonance frequency, is that the folded horn can be made shorter (that is, its greatest linear dimension measured from the outside can be made smaller). Alternatively, for a given length, the resonance frequency can be reduced. Hence, the folded-horn concept affords an additional degree of design freedom for reducing the length of an ultrasonic power system that includes a horn.

  5. Development of Non-Proprietary Ultra-High Performance Concrete for Use in the Highway Bridge Sector : TechBrief

    DOT National Transportation Integrated Search

    2013-10-01

    The long-term goals of this study are to facilitate the use of ultra-high performance concrete (UHPC) among U.S. suppliers and contractors, accelerate its application in U.S. construction, and promote a more resilient and sustainable future U.S. infr...

  6. Technology for Work, Home, and Leisure. Tech Use Guide: Using Computer Technology.

    ERIC Educational Resources Information Center

    Williams, John M.

    This guide provides a brief introduction to several types of technological devices useful to individuals with disabilities and illustrates how some individuals are applying technology in the workplace and at home. Devices described include communication aids, low-vision products, voice-activated systems, environmental controls, and aids for…

  7. Long-Term Pavement Performance Program: Pavement Performance Measures and Forecasting and the Effects of Maintenance and Rehabilitation Strategy on Treatment Effectiveness [Tech Brief

    DOT National Transportation Integrated Search

    2016-08-01

    This document is a technical summary of the Federal Highway Administration Long-Term Pavement Performance Program report, Pavement Performance Measures and Forecasting and the Effects of Maintenance and Rehabilitation Strategy on Treatment Effectiven...

  8. Sell, Sell, Sell or Learn, Learn, Learn? The EdTech Market in New Zealand's Education System--Privatisation by Stealth?

    ERIC Educational Resources Information Center

    Wright, Noeline; Peters, Michael

    2017-01-01

    An article in "The Atlantic" "Quantifying the Ed-Tech Market" (2015), which draws on a review by the Education Technology Industry Network, reports that the U.S. Ed-tech market totalled $8.38 billion in the 2012-2013 academic year, which is up from $7.9 billion the year before, and up 11.7 per cent from 2009. K-12 online course…

  9. TECH-NJ, 2000-2002.

    ERIC Educational Resources Information Center

    Dell, Amy G., Ed.

    2002-01-01

    These three issues of "TECH-NJ" from 2000 to 2002 focus on technology and children with disabilities in New Jersey. The issues address how technology can support language development and people with learning disabilities, and technology tools that support reading. Featured articles include: (1) "Adaptive Technology Center for New…

  10. Index to NASA tech briefs, 1973. [technology transfer of research and development activities chemistry

    NASA Technical Reports Server (NTRS)

    1974-01-01

    Short announcements of technology derived from the research and development activities of NASA or the U.S. Atomic Energy Commission are issued to encourage commercial application. Emphasis is placed on information considered likely to be transferrable across industrial, regional, or disciplinary lines. Abstracts and indexes are given.

  11. CALS Tech Bulletin #3. An Occasional Publication of the Center for Advanced Learning Systems.

    ERIC Educational Resources Information Center

    CSR, Inc., Washington, DC.

    This paper contains brief synopses of recent technical progress/projects in the field of advanced learning systems. This issue contains the following 12 items: (1) "Guest Editorial" (Sylvia Charp) concerning the need to provide better learning experiences for all students; (2) "Steps in Developing an Expert Systems Model," as…

  12. Improved Algorithm For Finite-Field Normal-Basis Multipliers

    NASA Technical Reports Server (NTRS)

    Wang, C. C.

    1989-01-01

    Improved algorithm reduces complexity of calculations that must precede design of Massey-Omura finite-field normal-basis multipliers, used in error-correcting-code equipment and cryptographic devices. Algorithm represents an extension of development reported in "Algorithm To Design Finite-Field Normal-Basis Multipliers" (NPO-17109), NASA Tech Briefs, Vol. 12, No. 5, page 82.

  13. Benchmarking in Education: Tech Prep, a Case in Point. IEE Brief Number 8.

    ERIC Educational Resources Information Center

    Inger, Morton

    Benchmarking is a process by which organizations compare their practices, processes, and outcomes to standards of excellence in a systematic way. The benchmarking process entails the following essential steps: determining what to benchmark and establishing internal baseline data; identifying the benchmark; determining how that standard has been…

  14. Low Speed Rot or/Fuselage Interactional Aerodynamics

    NASA Technical Reports Server (NTRS)

    Barnwell, Richard W.; Prichard, Devon S.

    2003-01-01

    This report presents work performed under a Cooperative Research Agreement between Virginia Tech and the NASA Langley Research Center. The work involved development of computational techniques for modeling helicopter rotor/airframe aerodynamic interaction. A brief overview of the problem is presented, the modeling techniques are described, and selected example calculations are briefly discussed.

  15. Testing Services

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Trace Laboratories is an independent testing laboratory specializing in testing printed circuit boards, automotive products and military hardware. Technical information from NASA Tech Briefs and two subsequent JPL Technical Support packages have assisted Trace in testing surface insulation resistance on printed circuit board materials. Testing time was reduced and customer service was improved because of Jet Propulsion Laboratory technical support packages.

  16. Contributions of the Akamai Workforce Initiative

    ERIC Educational Resources Information Center

    St. John, Mark; Castori, Pam

    2014-01-01

    This brief presents a third party, external perspective on the Akamai Workforce Initiative (AWI), highlighting some of the contributions of the initiative over the last ten years. AWI is a program that seeks to develop a skilled local STEM workforce to meet the needs of Hawai'i's growing high-tech industry. It began as an internship program…

  17. NASA Tech Briefs, Spring/Summer 1982. Volume 6, No. 4

    NASA Technical Reports Server (NTRS)

    1982-01-01

    Topics covered 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; and Machinery.

  18. Development of quality standards for inclusion of high recycled asphalt pavement content in asphalt mixtures - phase II, [tech brief].

    DOT National Transportation Integrated Search

    2015-03-01

    The objective of this research is to 1) build a test section utilizing HMA : mix designs with up to 40% RAP materials, 2) evaluate the moisture : sensitivity of High-RAP mixtures, 3) characterize the low-temperature : fracture behavior of High-RAP mi...

  19. On-Demand Lectures Create an Effective Distributed Education Experience

    ERIC Educational Resources Information Center

    Lindsey, Stanley D.

    2003-01-01

    In this article, the author shares his experience teaching senior-level structural engineering courses at the Georgia Institute of Technology's Georgia Tech Regional Engineering Program. The program is a unique partnership of four universities--Georgia Tech, Savannah State University, Armstrong Atlantic State University, and Georgia Southern…

  20. A mini review on hydrogels classification and recent developments in miscellaneous applications.

    PubMed

    Varaprasad, Kokkarachedu; Raghavendra, Gownolla Malegowd; Jayaramudu, Tippabattini; Yallapu, Murali Mohan; Sadiku, Rotimi

    2017-10-01

    Hydrogels are composed of three-dimensional smart and/or hungry networks, which do not dissolve in water but swell considerably in an aqueous medium, demonstrating an extraordinary ability to absorb water into the reticulated structure. Such inherent feature is a subject of considerable scientific research interest which leads to a dominating path in extending their potential in hi-tech applications. Over the past decades, significant progress has been made in the field of hydrogels. Further, explorations are continuously being made in all directions at an accelerated pace for their extensive usage. In view of this, the present review discusses the subject on the miscellaneous hydrogels with regard to their raw materials, methods of fabrication and applications. In addition, this article summarizes the classification of hydrogels, based on their cross-linking and physical states. Lately, a brief outlook on the future prospects of hydrogels is also presented. Copyright © 2017 Elsevier B.V. All rights reserved.

  1. Simulation of Hazards and Poses for a Rocker-Bogie Rover

    NASA Technical Reports Server (NTRS)

    Backes, Paul; Norris, Jeffrey; Powell, Mark; Tharp, Gregory

    2004-01-01

    Provisions for specification of hazards faced by a robotic vehicle (rover) equipped with a rocker-bogie suspension, for prediction of collisions between the vehicle and the hazards, and for simulation of poses of the vehicle at selected positions on the terrain have been incorporated into software that simulates the movements of the vehicle on planned paths across the terrain. The software in question is that of the Web Interface for Telescience (WITS), selected aspects of which have been described in a number of prior NASA Tech Briefs articles. To recapitulate: The WITS is a system of computer software that enables scientists, located at geographically dispersed computer terminals connected to the World Wide Web, to command instrumented robotic vehicles (rovers) during exploration of Mars and perhaps eventually of other planets. The WITS also has potential for adaptation to terrestrial use in telerobotics and other applications that involve computer-based remote monitoring, supervision, control, and planning.

  2. Heart Research

    NASA Technical Reports Server (NTRS)

    1991-01-01

    James Antaki and a group of researchers from the University of Pittsburgh School of Medicine used many elements of the Technology Utilization Program while looking for a way to visualize and track material points within the heart muscle. What they needed were tiny artificial "eggs" containing copper sulfate solution, small enough (about 2 mm in diameter) that they would not injure the heart, and large enough to be seen in Magnetic Resonance Imaging (MRI) images; they also had to be biocompatible and tough enough to withstand the beating of the muscle. The group could not make nor buy sufficient containers. After reading an article on microspheres in NASA Tech Briefs, and a complete set of reports on microencapsulation from the Jet Propulsion Laboratory (JPL), JPL put Antaki in touch with Dr.Taylor Wang of Vanderbilt University who helped construct the myocardial markers. The research is expected to lead to improved understanding of how the heart works and what takes place when it fails.

  3. Improved Multiple-DOF SAW Piezoelectric Motors

    NASA Technical Reports Server (NTRS)

    Bar-Cohen, Yoseph; Bao, Xiaoqi; Hull, Anthony; Wright, John

    2003-01-01

    Surface-acoustic-wave (SAW) piezoelectric motors of a proposed type would be capable of operating in multiple degrees of freedom (DOFs) simultaneously and would be amenable to integration into diverse structures and mechanisms. These motors would be compact and structurally simple and would not contain bearings or lead screws. One example of a particularly useful motor of this type would be a two-dimensional- translation stage. Another such example would be a self-actuated spherical joint that could be made to undergo controlled, simultaneous rotations about two orthogonal axes: Such a motor could serve as a mechanism for aiming an "eyeball" camera or as a compact transducer in, and an integral part of, a joint in a robot arm. The multiple-DOF SAW piezoelectric motors as now proposed would be successors to the ones reported in "Multiple-DOF Surface-Acoustic-Wave Piezoelectric Motors" (NPO-20735), NASA Tech Briefs, Vol. 24, No. 12 (December 2000), page 5b. The basic principle of operation of a multiple-DOF SAW piezoelectric motor is a straightforward extension of that of single-DOF SAW piezoelectric motors, which have been reported in several previous NASA Tech Briefs articles: For example, in the case of a linear SAW piezoelectric motor, piezoelectric transducers at opposite ends of a stator excite surface acoustic waves that travel along the surface of the stator. An object (denoted the slider) is pressed against the stator with sufficient pressure (in practice .300 MPa) that it remains in frictional contact with the stator at all times. The slider rides the crests of the waves and is thereby made to move along the surface of the stator. The direction of motion (forward or backward) is controlled by selecting the relative phase of waves generated by the two piezoelectric transducers. The speed increases with the amplitude of the waves and thus with the magnitude of the voltage applied to the transducers.

  4. Delta-Doped CCDs as Detector Arrays in Mass Spectrometers

    NASA Technical Reports Server (NTRS)

    Nikzad, Shouleh; Jones, Todd; Jewell, April; Sinha, Mahadeva

    2007-01-01

    In a conventional mass spectrometer, charged particles (ions) are dispersed through a magnetic sector onto an MCP at an output (focal) plane. In the MCP, the impinging charged particles excite electron cascades that afford signal gain. Electrons leaving the MCP can be read out by any of a variety of means; most commonly, they are post-accelerated onto a solid-state detector array, wherein the electron pulses are converted to photons, which, in turn, are converted to measurable electric-current pulses by photodetectors. Each step in the conversion from the impinging charged particles to the output 26 NASA Tech Briefs, February 2007 current pulses reduces spatial resolution and increases noise, thereby reducing the overall sensitivity and performance of the mass spectrometer. Hence, it would be preferable to make a direct measurement of the spatial distribution of charged particles impinging on the focal plane. The utility of delta-doped CCDs as detectors of charged particles was reported in two articles in NASA Tech Briefs, Vol. 22, No. 7 (July 1998): "Delta-Doped CCDs as Low-Energy-Particle Detectors" (NPO-20178) on page 48 and "Delta- Doped CCDs for Measuring Energies of Positive Ions" (NPO-20253) on page 50. In the present developmental miniature mass spectrometers, the above mentioned miniaturization and performance advantages contributed by the use of delta-doped CCDs are combined with the advantages afforded by the Mattauch-Herzog design. The Mattauch- Herzog design is a double-focusing spectrometer design involving an electric and a magnetic sector, where the ions of different masses are spatially separated along the focal plane of magnetic sector. A delta-doped CCD at the focal plane measures the signals of all the charged-particle species simultaneously at high sensitivity and high resolution, thereby nearly instantaneously providing a complete, high-quality mass spectrum. The simultaneous nature of the measurement of ions stands in contrast to that of a scanning mass spectrometer, in which abundances of different masses are measured at successive times.

  5. Music for Music's Sake and Tech for Tech's Sake

    ERIC Educational Resources Information Center

    Dunbar, Laura

    2016-01-01

    Technology is constantly changing, and it can be challenging to move beyond the "bells and whistles" of a new app or piece of software to confirm worthiness for classroom use. This article explores the balance point between technology use and more traditional modalities in the music classroom.

  6. Determining Studies Conducted upon Individuals with Autism Spectrum Disorder Using High-Tech Devices

    ERIC Educational Resources Information Center

    Eliçin, Özge; Kaya, Ali

    2017-01-01

    This study explores 67 experimental research articles written about children with Autism Spectrum Disorder using high-tech devices. The studies in this research were accessed through EBSCO, Academic Search Complete, ERIC, and Uludag University online search engines using keywords such as "autism and technology", "autism and…

  7. Ten Top Tech Trends

    ERIC Educational Resources Information Center

    McLester, Susan

    2008-01-01

    In this article, the author discusses the major technical issues, products, and practices of the day. The top ten tech trends are listed and discussed. These include: (1) data mining; (2) cyberbullying; (3) 21st century skills; (4) digital content; (5) learning at leisure; (6) personal responders; (7) mobile tools; (8) bandwidth; (9) open-source…

  8. Creating Tech Wizards: Tech-Savvy Students Help Teachers Transform Practice

    ERIC Educational Resources Information Center

    Breiner, Beth

    2009-01-01

    In eastern Pennsylvania, middle schoolers are teaching the teachers how to use technology effectively in the classroom. This article describes the Technology Wizards program which was developed by the Carbon Lehigh Intermediate Unit's Department of Instructional Innovation. It is a radical departure from traditional educational professional…

  9. The Virginia Tech Shootings: Implications for Crisis Communication in Educational Settings

    ERIC Educational Resources Information Center

    Barker, Gina G.; Yoder, Mollie E.

    2012-01-01

    By examining Virginia Tech's crisis communication during and after the shootings on April 16, 2007, valuable insights were gained that may be applied to current crisis communication models. This article addresses the unique characteristics of educational institutions and the need for comprehensive emergency communication strategies and on-site…

  10. Three-Function Logic Gate Controlled by Analog Voltage

    NASA Technical Reports Server (NTRS)

    Zebulum, Ricardo; Stoica, Adrian

    2006-01-01

    The figure is a schematic diagram of a complementary metal oxide/semiconductor (CMOS) electronic circuit that performs one of three different logic functions, depending on the level of an externally applied control voltage, V(sub sel). Specifically, the circuit acts as A NAND gate at V(sub sel) = 0.0 V, A wire (the output equals one of the inputs) at V(sub sel) = 1.0 V, or An AND gate at V(sub sel) = -1.8 V. [The nominal power-supply potential (VDD) and logic "1" potential of this circuit is 1.8 V.] Like other multifunctional circuits described in several prior NASA Tech Briefs articles, this circuit was synthesized following an automated evolutionary approach that is so named because it is modeled partly after the repetitive trial-and-error process of biological evolution. An evolved circuit can be tested by computational simulation and/or tested in real hardware, and the results of the test can provide guidance for refining the design through further iteration. The evolutionary synthesis of electronic circuits can now be implemented by means of a software package Genetic Algorithms for Circuit Synthesis (GACS) that was developed specifically for this purpose. GACS was used to synthesize the present trifunctional circuit. As in the cases of other multifunctional circuits described in several prior NASA Tech Briefs articles, the multiple functionality of this circuit, the use of a single control voltage to select the function, and the automated evolutionary approach to synthesis all contribute synergistically to a combination of features that are potentially advantageous for the further development of robust, multiple-function logic circuits, including, especially, field-programmable gate arrays (FPGAs). These advantages include the following: This circuit contains only 9 transistors about half the number of transistors that would be needed to obtain equivalent NAND/wire/AND functionality by use of components from a standard digital design library. If multifunctional gates like this circuit were used in the place of the configurable logic blocks of present commercial FPGAs, it would be possible to change the functions of the resulting digital systems within shorter times. For example, by changing a single control voltage, one could change the function of thousands of FPGA cells within nanoseconds. In contrast, typically, the reconfiguration in a conventional FPGA by use of bits downloaded from look-up tables via a digital bus takes microseconds.

  11. Rotary Percussive Auto-Gopher for Deep Drilling and Sampling

    NASA Technical Reports Server (NTRS)

    Bar-Cohen, Yoseph; Badescu, Mircea; Sherrit, Stewart

    2009-01-01

    The term "rotary percussive auto-gopher" denotes a proposed addition to a family of apparatuses, based on ultrasonic/ sonic drill corers (USDCs), that have been described in numerous previous NASA Tech Briefs articles. These apparatuses have been designed, variously, for boring into, and/or acquiring samples of, rock or other hard, brittle materials of geological interest. In the case of the rotary percussive autogopher, the emphasis would be on developing an apparatus capable of penetrating to, and acquiring samples at, depths that could otherwise be reached only by use of much longer, heavier, conventional drilling-and-sampling apparatuses. To recapitulate from the prior articles about USDCs: A USDC can be characterized as a lightweight, low-power jackhammer in which a piezoelectrically driven actuator generates ultrasonic vibrations and is coupled to a tool bit through a free mass. The bouncing of the free mass between the actuator horn and the drill bit converts the actuator ultrasonic vibrations into sonic hammering of the drill bit. The combination of ultrasonic and sonic vibrations gives rise to a hammering action (and a resulting chiseling action at the tip of the tool bit) that is more effective for drilling than is the microhammering action of ultrasonic vibrations alone. The hammering and chiseling actions are so effective that the size of the axial force needed to make the tool bit advance into soil, rock, or another material of interest is much smaller than in ordinary rotary drilling, ordinary hammering, or ordinary steady pushing. The predecessor of the rotary percussive auto-gopher is an apparatus, now denoted an ultrasonic/sonic gopher and previously denoted an ultrasonic gopher, described in "Ultrasonic/ Sonic Mechanism for Drilling and Coring" (NPO-30291), NASA Tech Briefs Vol. 27, No. 9 (September 2003), page 65. The ultrasonic/sonic gopher is intended for use mainly in acquiring cores. The name of the apparatus reflects the fact that, like a gopher, it periodically stops advancing at the end of the hole to bring excavated material (in this case, a core sample) to the surface, then re-enters the hole to resume the advance of the end of the hole. By use of a cable suspended from a reel on the surface, the gopher is lifted from the hole to remove a core sample, then lowered into the hole to resume the advance and acquire the next core sample.

  12. NASA Tech Briefs, Winter 1977. Volume 2, No. 4

    NASA Technical Reports Server (NTRS)

    1977-01-01

    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.

  13. NASA Tech Briefs, Summer 1979. Volume 4, No. 2

    NASA Technical Reports Server (NTRS)

    1979-01-01

    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.

  14. Career Exploration by Adults. Practice Application Brief No. 14.

    ERIC Educational Resources Information Center

    Kerka, Sandra

    In an era of rapid social and economic changes, the demand for adult career exploration services is growing in career-tech and one-stop centers and community college and university reentry programs. Career exploration is a process of acquiring self-knowledge and career knowledge and using this knowledge to formulate plans and prepare for a career.…

  15. NASA Tech Briefs, Summer 1981. Volume 6, No. 2

    NASA Technical Reports Server (NTRS)

    1981-01-01

    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.

  16. NASA Tech Briefs, Winter 1980. Volume 5, No. 4

    NASA Technical Reports Server (NTRS)

    1980-01-01

    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.

  17. NASA Tech Briefs, Fall 1980. Volume 5, No. 3

    NASA Technical Reports Server (NTRS)

    1980-01-01

    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 innovatio.ns 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.

  18. NASA Tech Briefs, Fall 1978. Volume 3, No. 3

    NASA Technical Reports Server (NTRS)

    1978-01-01

    Topics covered: 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.

  19. NASA Tech Briefs, Summer 1984. Volume 8, No. 4

    NASA Technical Reports Server (NTRS)

    1984-01-01

    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.

  20. NASA Tech Briefs, Fall/Winter 1981. Vol. 6, No. 3

    NASA Technical Reports Server (NTRS)

    1981-01-01

    Topics covered: 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.

  1. NASA Tech Briefs, Spring 1978. Volume 3, No. 1

    NASA Technical Reports Server (NTRS)

    1978-01-01

    Topics covered 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.

  2. NASA Tech Briefs, Winter 1978. Volume 3, No. 4

    NASA Technical Reports Server (NTRS)

    1978-01-01

    Topics covered 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.

  3. NASA Tech Briefs, Winter 1983. Volume 8, No. 2

    NASA Technical Reports Server (NTRS)

    1983-01-01

    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;

  4. NASA Tech Briefs, Winter 1982. Volume 7, No. 2

    NASA Technical Reports Server (NTRS)

    1982-01-01

    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.

  5. NASA Tech Briefs, Spring 1981. Volume 6, No. 1

    NASA Technical Reports Server (NTRS)

    1981-01-01

    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.

  6. NASA Tech Briefs, Spring 1984. Volume 8, No. 3

    NASA Technical Reports Server (NTRS)

    1984-01-01

    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.

  7. NASA Tech Briefs, Fall 1976. Volume 1, No. 3

    NASA Technical Reports Server (NTRS)

    1976-01-01

    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 seloc.ted 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.

  8. NASA Tech Briefs, Summer 1978

    NASA Technical Reports Server (NTRS)

    1978-01-01

    Topics covered 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; Solar Energy; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  9. Federal Highway Administration University Course on Bicycle and Pedestrian Transportation. TechBrief. Publication No. FHWA-HRT-06-065

    ERIC Educational Resources Information Center

    US Department of Transportation, 2006

    2006-01-01

    The second edition of the "Federal Highway Administration (FHWA) University Course on Bicycle and Pedestrian Transportation", a set of resources designed to provide background materials for an undergraduate or graduate university course on bicycling and walking, is now available from the FHWA. The FHWA distributes this teaching resource to…

  10. NASA Tech Briefs, Winter 1979. Volume 4, No. 4

    NASA Technical Reports Server (NTRS)

    1979-01-01

    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.

  11. NASA Tech Briefs, Fall 1977. Volume 2, No. 3

    NASA Technical Reports Server (NTRS)

    1977-01-01

    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.

  12. NASA Tech Briefs, Summer 1980. Volume 5, No. 2

    NASA Technical Reports Server (NTRS)

    1980-01-01

    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.

  13. NASA Tech Briefs, Spring 1977. Volume 2, No. 1

    NASA Technical Reports Server (NTRS)

    1977-01-01

    Topics: NASA TU Services: Technology Utilization services that can assist you in learning about and applying NASA technology; New Product Ideas: A summary of selted 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.

  14. NASA Tech Briefs, August 1995. Volume 19, No. 8

    NASA Technical Reports Server (NTRS)

    1995-01-01

    There is a special focus on computer graphics and simulation in this issue. Topics covered include : Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer programs, Mechanics; Machinery; Fabrication Technology; and Mathematics and Information Sciences. There is a section on for Laser Technology, which includes a feature on Moving closer to the suns power.

  15. NASA Tech Briefs, Fall 1982. Volume 7, No. 1

    NASA Technical Reports Server (NTRS)

    1982-01-01

    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 develop ment of new products; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences.

  16. NASA Tech Briefs, Spring 1979. Volume 4, No. 1

    NASA Technical Reports Server (NTRS)

    1979-01-01

    Topics covered 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;

  17. NASA Tech Briefs, Fall 1983. Volume 8, No. 1

    NASA Technical Reports Server (NTRS)

    1983-01-01

    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.

  18. NASA Tech Briefs, Winter 1976. Volume 1, No. 4

    NASA Technical Reports Server (NTRS)

    1976-01-01

    Topics covered 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 val ue 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.

  19. NASA Tech Briefs Index, 1976. [bibliography

    NASA Technical Reports Server (NTRS)

    1976-01-01

    Abstracts of new technology derived from the research and development activities of the National Aeronautics and Space Administration are presented. Emphasis is placed on information considered likely to be transferrable across industrial, regional, or disciplinary lines. Subject matter covered includes: electronic components and circuits; electronic systems; physical sciences; materials; life sciences; mechanics; machinery; fabrication technology; and mathematics and information sciences.

  20. NASA Tech Briefs, Summer 1977. Volume 2, No. 2

    NASA Technical Reports Server (NTRS)

    1977-01-01

    Topics: 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.

  1. NASA Tech Briefs, Spring 1983. Volume 7, No. 3

    NASA Technical Reports Server (NTRS)

    1983-01-01

    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;

  2. NASA Tech Briefs, Spring 1980. Volume 5, No. 1

    NASA Technical Reports Server (NTRS)

    1980-01-01

    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.

  3. NASA Tech Briefs, Fall 1979. Volume 4, No. 3

    NASA Technical Reports Server (NTRS)

    1979-01-01

    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.

  4. NASA Tech Briefs, Summer 1983. Volume 7, No. 4

    NASA Technical Reports Server (NTRS)

    1983-01-01

    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.

  5. Educating Silicon Valley: Corporate Education Reform and the Reproduction of the Techno-Economic Revolution

    ERIC Educational Resources Information Center

    Williamson, Ben

    2017-01-01

    Silicon Valley's high-tech companies, tech-philanthropists, startups, and culture of venture capital are "the centre of a techno-economic revolution" that is "now spreading outwards across the world, with major societal effects and implications" (Duff 2016, 5). In this article, Ben Williamson traces and maps how education is…

  6. Update on Research and Leadership, 2002.

    ERIC Educational Resources Information Center

    Barnett, Elisabeth, Ed.

    2002-01-01

    This issue (v14 n1) of the University of Illinois'"On Research and Leadership Update" contains seven articles. The first, "Community College and Beyond: A National Evaluation of Tech Prep," by Debra Bragg, discusses results of the author's study of student experiences and outcomes in eight local tech-prep consortia in the U.S.…

  7. Give Your Old-School Curriculum a NETS Makeover

    ERIC Educational Resources Information Center

    LaMaster, Jen

    2012-01-01

    Integrating digital age technology into an industrial age educational system is hard enough. Imagine introducing ed tech to a 450-year-old Jesuit educational paradigm. Find out how to seamlessly combine the NETS with a centuries-old framework to create an effective ed tech strategic plan. This article describes how the author successfully…

  8. Innovation Engine

    ERIC Educational Resources Information Center

    Stuart, Reginald

    2012-01-01

    This article describes how Wayne State University's TechTown is helping revive Detroit's hard-hit economy. TechTown got its start when then-Wayne State President Irvin Reid and a small group of business leaders in the city and state officials decided Detroit needed to embrace the business incubator idea that had been so successful in other regions…

  9. Spaces of Innovation: Experiences from Two Small High-Tech Firms

    ERIC Educational Resources Information Center

    Heiskanen, Tuula; Heiskanen, Hannu

    2011-01-01

    Purpose: By comparing two small high-tech firms specialising in medical technology this article seeks to answer the following questions: What are the key characteristics of innovation processes in the case firms? How do the mutual relationships between mental, social and physical spaces explain the different pathways in the innovation processes in…

  10. TECH-NJ: Technology, Educators, & CHildren with Disabilities--New Jersey, 1996-1998.

    ERIC Educational Resources Information Center

    TECH-NJ: Technology, Educators, & CHildren with disabilities--New Jersey, 1998

    1998-01-01

    These six issues of "TECH-NJ" from winter 1997 to fall 1998 focus on technology and children with disabilities in New Jersey. Featured articles include: (1) "Untangling the World Wide Web" (Kathleen Foster and Gerald Quinn); (2) "Combining Technology with Cooperative Learning: The Great Solar System" (Lisa Gregory);…

  11. Teaching and Learning: Hokie Spirit

    ERIC Educational Resources Information Center

    Lindeman, Cheryl A.

    2007-01-01

    If teachers were to reflect about their most difficult teachable moments in their careers, the author is sure the Virginia Tech tragedy would be extremely taxing on their minds. For those teachers teaching high school seniors, who were in the process of sending deposits to Virginia Tech, it was particularly agonizing. In this article, the author…

  12. Pharmacist and Technician Perceptions of Tech-Check-Tech in Community Pharmacy Practice Settings.

    PubMed

    Frost, Timothy P; Adams, Alex J

    2018-04-01

    Tech-check-tech (TCT) is a practice model in which pharmacy technicians with advanced training can perform final verification of prescriptions that have been previously reviewed for appropriateness by a pharmacist. Few states have adopted TCT in part because of the common view that this model is controversial among members of the profession. This article aims to summarize the existing research on pharmacist and technician perceptions of community pharmacy-based TCT. A literature review was conducted using MEDLINE (January 1990 to August 2016) and Google Scholar (January 1990 to August 2016) using the terms "tech* and check," "tech-check-tech," "checking technician," and "accuracy checking tech*." Of the 7 studies identified we found general agreement among both pharmacists and technicians that TCT in community pharmacy settings can be safely performed. This agreement persisted in studies of theoretical TCT models and in studies assessing participants in actual community-based TCT models. Pharmacists who had previously worked with a checking technician were generally more favorable toward TCT. Both pharmacists and technicians in community pharmacy settings generally perceived TCT to be safe, in both theoretical surveys and in surveys following actual TCT demonstration projects. These perceptions of safety align well with the actual outcomes achieved from community pharmacy TCT studies.

  13. 2009 Navy ManTech Project Book

    DTIC Science & Technology

    2009-01-01

    pieces which are welded together, filled with syntactic foam , and welded to the sail and hull structure. The ManTech project was successful in...cladding has demonstrated the required performance characteristics . The testing demonstrated manufacturability of optical fibers with enhanced hard...using Liquid Injection Molding Simulation (LIMS) and Polyworx software tools for infusion set-up optimization. Test articles fabricated are

  14. They're Taking Requests: Student Techs Command the Help Desk

    ERIC Educational Resources Information Center

    Demski, Jennifer

    2010-01-01

    The new faces on the help desk are younger, work for cheap, and may be the tech savviest in the building. This article describes how two IT training programs are teaching students valuable technology skills while providing schools with a much-needed lift to their troubleshooting teams. The programs--Generation YES and Mouse Squad--put students at…

  15. Neuroscientific Investigator of High Mathematical Ability: An Interview with Michael W. O'Boyle

    ERIC Educational Resources Information Center

    Kalbfleisch, M. Layne

    2008-01-01

    This article presents an interview with Michael W. O'Boyle, a neuroscientific investigator of high mathematical ability. O'Boyle is a professor in the Department of Human Development and Family Studies, Texas Tech University, and Adjunct Professor of Pharmacology and Neuroscience, School of Medicine, Texas Tech University Health Sciences Center.…

  16. Taking (or Is that "Tech"ing) Back the Future

    ERIC Educational Resources Information Center

    Foster, Forrest C.

    2011-01-01

    Technology has ushered itself into our culture without borders or boundaries. Students and educators have fallen victim to the notion of "information at your fingertips" and "easy access" while taking many things for granted. In the past few years, there have been several articles written about the use of textbooks in the academic library. Most of…

  17. User Study of a New Smart Toy for Children's Storytelling

    ERIC Educational Resources Information Center

    Kara, Nuri; Aydin, Cansu Cigdem; Cagiltay, Kursat

    2014-01-01

    This article introduces StoryTech, a smart storytelling toy that offers children a mixed reality environment in which to tell imaginative stories. During usability testing, an empirical study was carried out with 90 child participants. The findings indicated that StoryTech creates a rich storytelling experience, especially for ages five and six.

  18. NASA Tech Briefs Index, 1978. [bibliography

    NASA Technical Reports Server (NTRS)

    1978-01-01

    Approximately 601 announcements of new technology derived from the research and development activities of the National Aeronautics and Space Administration are presented. Emphasis is placed on information considered likely to be transferrable across industrial, regional, or disciplinary lines. Subject matter covered includes: electronic components and circuits; electron systems; physical sciences; materials; life sciences; mechanics; machinery; fabrication technology; and mathematics and information sciences.

  19. Rhetorical Interpretation of Abstracts in Sci-Tech Theses Based on Burke's Identification Theory

    ERIC Educational Resources Information Center

    Zhong, Jihong

    2017-01-01

    Abstract of a thesis is the brief and accurate representation of the thesis, with the important function of persuading readers to read on the thesis. So how the writer constructs the abstract and wins readers' recognition is our main focus. On the basis of Burke's Identification Theory, this paper analyzed 10 abstracts from "Nature" from…

  20. Specialized Workshops on the Agricultural Science and Technology Curriculum for Secondary Agricultural Science Teachers. Final Report.

    ERIC Educational Resources Information Center

    Texas Tech Univ., Lubbock.

    This brief report describes six 2- to 3-day specialized workshops conducted at Texas Tech University and Stephen F. Austin University campuses for 121 secondary agriscience teachers. The workshops provided teachers with instruction and materials to assist them in teaching the new 100, 200, and 300 level semester courses. Topics were as follows:…

  1. High-Tech or High-Touch? Online Learning and Independent Higher Education. Innovations in Teaching and Learning. Research Brief 5

    ERIC Educational Resources Information Center

    Katz, Philip M.

    2016-01-01

    Independent colleges and universities are cautious adopters of online education for undergraduate students. These institutions seek to balance a tradition of student-focused pedagogy in face-to-face settings and faculty wariness of online courses against the promise of lower instructional costs, changing student expectations, and the potential for…

  2. Nanoscience for Insensitive Munitions Development (Briefing Charts)

    DTIC Science & Technology

    2008-12-03

    reactive material Ni/Al Hypervelocity collisions of ND Melting of nitromethane Shocked energetic materials Self-sustained detonation of model explosive ...deformation by compressing, stretching or twisting the bond. First Observed by Bridgeman as Explosion of Common Substances Subjected to Pressure and Shear...in Energetic Materials as New Means for Designing Nonconventional High Explosives : An analysis of Soviet Research, Tech Report 1991. A. M

  3. NASA Tech Briefs, Summer 1976. Volume 1, No. 2

    NASA Technical Reports Server (NTRS)

    1976-01-01

    Topics covered include: Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Life Sciences; Mechanics; Machinery; Fabrication Technology; Mathematics and Information Sciences. Also included are; NASA TU Services: Technology Utilization services that can assist you in learning about and applying NASA technology; and New Product Ideas: A summary of selected innovations of value to manufacturers for the development of new products.

  4. Custom Sky-Image Mosaics from NASA's Information Power Grid

    NASA Technical Reports Server (NTRS)

    Jacob, Joseph; Collier, James; Craymer, Loring; Curkendall, David

    2005-01-01

    yourSkyG is the second generation of the software described in yourSky: Custom Sky-Image Mosaics via the Internet (NPO-30556), NASA Tech Briefs, Vol. 27, No. 6 (June 2003), page 45. Like its predecessor, yourSkyG supplies custom astronomical image mosaics of sky regions specified by requesters using client computers connected to the Internet. Whereas yourSky constructs mosaics on a local multiprocessor system, yourSkyG performs the computations on NASA s Information Power Grid (IPG), which is capable of performing much larger mosaicking tasks. (The IPG is high-performance computation and data grid that integrates geographically distributed 18 NASA Tech Briefs, September 2005 computers, databases, and instruments.) A user of yourSkyG can specify parameters describing a mosaic to be constructed. yourSkyG then constructs the mosaic on the IPG and makes it available for downloading by the user. The complexities of determining which input images are required to construct a mosaic, retrieving the required input images from remote sky-survey archives, uploading the images to the computers on the IPG, performing the computations remotely on the Grid, and downloading the resulting mosaic from the Grid are all transparent to the user

  5. Tests of Low-Noise MMIC Amplifier Module at 290 to 340 GHz

    NASA Technical Reports Server (NTRS)

    Gaier, Todd; Samoska, Lorene; Fung, King Man; Deal, William; Mei, Xiaobing; Lai, Richard

    2009-01-01

    A document presents data from tests of a low-noise amplifier module operating in the frequency range from 290 to 340 GHz said to be the highest-frequency low-noise, solid-state amplifier ever developed. The module comprised a three-stage monolithic microwave integrated circuit (MMIC) amplifier integrated with radial probe MMIC/waveguide transitions and contained in a compact waveguide package, all according to the concepts described in the immediately preceding article and in the referenced prior article, "Integrated Radial Probe Transition From MMIC to Waveguide" (NPO-43957), NASA Tech Briefs Vol. 31, No. 5 (May 2007), page 38. The tests included measurements by the Y-factor method, in which noise figures are measured repeatedly with an input noise source alternating between an "on" (hot-load) condition and an "off" (cold-load) condition. (The Y factor is defined as the ratio between the "on" and "off" noise power levels.) The test results showed that, among other things, the module exhibited a minimum noise figure of about 8.7 dB at 325 GHz and that the gain at that frequency under the bias conditions that produced the minimum noise figure was between about 9 and 10 dB.

  6. Advances in nickel hydrogen technology at Yardney Battery Division

    NASA Technical Reports Server (NTRS)

    Bentley, J. G.; Hall, A. M.

    1987-01-01

    The current major activites in nickel hydrogen technology being addressed at Yardney Battery Division are outlined. Five basic topics are covered: an update on life cycle testing of ManTech 50 AH NiH2 cells in the LEO regime; an overview of the Air Force/industry briefing; nickel electrode process upgrading; 4.5 inch cell development; and bipolar NiH2 battery development.

  7. Index to NASA Tech Briefs, 1974

    NASA Technical Reports Server (NTRS)

    1975-01-01

    The following information was given for 1974: (1) abstracts of reports dealing with new technology derived from the research and development activities of NASA or the U.S. Atomic Energy Commission, arranged by subjects: electronics/electrical, electronics/electrical systems, physical sciences, materials/chemistry, life sciences, mechanics, machines, equipment and tools, fabrication technology, and computer programs, (2) indexes for the above documents: subject, personal author, originating center.

  8. Fusing Symbolic and Numerical Diagnostic Computations

    NASA Technical Reports Server (NTRS)

    James, Mark

    2007-01-01

    X-2000 Anomaly Detection Language denotes a developmental computing language, and the software that establishes and utilizes the language, for fusing two diagnostic computer programs, one implementing a numerical analysis method, the other implementing a symbolic analysis method into a unified event-based decision analysis software system for realtime detection of events (e.g., failures) in a spacecraft, aircraft, or other complex engineering system. The numerical analysis method is performed by beacon-based exception analysis for multi-missions (BEAMs), which has been discussed in several previous NASA Tech Briefs articles. The symbolic analysis method is, more specifically, an artificial-intelligence method of the knowledge-based, inference engine type, and its implementation is exemplified by the Spacecraft Health Inference Engine (SHINE) software. The goal in developing the capability to fuse numerical and symbolic diagnostic components is to increase the depth of analysis beyond that previously attainable, thereby increasing the degree of confidence in the computed results. In practical terms, the sought improvement is to enable detection of all or most events, with no or few false alarms.

  9. Towards Preparing Young People for Employment and Further Study: First Evaluation of the City & Guilds TechBac

    ERIC Educational Resources Information Center

    Emira, Mahmoud; Rahman, Zeeshan

    2017-01-01

    Despite the United Kingdom government increasing efforts to tackle unemployment, young people face a number of barriers to be employed. As a leading awarding body, City & Guilds launched the TechBac in 2014 to address some of these barriers and provide learners with a balanced programme of vocational study. This article is based on the initial…

  10. Show & Tell: A Video Column / Don't Just Gather Data--Use It

    ERIC Educational Resources Information Center

    Fisher, Doug; Frey, Nancy

    2015-01-01

    Schools are awash in data, and teachers are being asked to gather data in a myriad of high-tech and low-tech ways. But gathering is not analyzing, and without analysis there is little reason to gather the data in the first place. Teachers need data-collection systems that lend themselves to rapid analysis and action. This article presents several…

  11. Hybrid VLSI/QCA Architecture for Computing FFTs

    NASA Technical Reports Server (NTRS)

    Fijany, Amir; Toomarian, Nikzad; Modarres, Katayoon; Spotnitz, Matthew

    2003-01-01

    A data-processor architecture that would incorporate elements of both conventional very-large-scale integrated (VLSI) circuitry and quantum-dot cellular automata (QCA) has been proposed to enable the highly parallel and systolic computation of fast Fourier transforms (FFTs). The proposed circuit would complement the QCA-based circuits described in several prior NASA Tech Briefs articles, namely Implementing Permutation Matrices by Use of Quantum Dots (NPO-20801), Vol. 25, No. 10 (October 2001), page 42; Compact Interconnection Networks Based on Quantum Dots (NPO-20855) Vol. 27, No. 1 (January 2003), page 32; and Bit-Serial Adder Based on Quantum Dots (NPO-20869), Vol. 27, No. 1 (January 2003), page 35. The cited prior articles described the limitations of very-large-scale integrated (VLSI) circuitry and the major potential advantage afforded by QCA. To recapitulate: In a VLSI circuit, signal paths that are required not to interact with each other must not cross in the same plane. In contrast, for reasons too complex to describe in the limited space available for this article, suitably designed and operated QCAbased signal paths that are required not to interact with each other can nevertheless be allowed to cross each other in the same plane without adverse effect. In principle, this characteristic could be exploited to design compact, coplanar, simple (relative to VLSI) QCA-based networks to implement complex, advanced interconnection schemes.

  12. Complexity for Survival of Living Systems

    NASA Technical Reports Server (NTRS)

    Zak, Michail

    2009-01-01

    A logical connection between the survivability of living systems and the complexity of their behavior (equivalently, mental complexity) has been established. This connection is an important intermediate result of continuing research on mathematical models that could constitute a unified representation of the evolution of both living and non-living systems. Earlier results of this research were reported in several prior NASA Tech Briefs articles, the two most relevant being Characteristics of Dynamics of Intelligent Systems (NPO- 21037), NASA Tech Briefs, Vol. 26, No. 12 (December 2002), page 48; and Self-Supervised Dynamical Systems (NPO- 30634) NASA Tech Briefs, Vol. 27, No. 3 (March 2003), page 72. As used here, living systems is synonymous with active systems and intelligent systems. The quoted terms can signify artificial agents (e.g., suitably programmed computers) or natural biological systems ranging from single-cell organisms at one extreme to the whole of human society at the other extreme. One of the requirements that must be satisfied in mathematical modeling of living systems is reconciliation of evolution of life with the second law of thermodynamics. In the approach followed in this research, this reconciliation is effected by means of a model, inspired partly by quantum mechanics, in which the quantum potential is replaced with an information potential. The model captures the most fundamental property of life - the ability to evolve from disorder to order without any external interference. The model incorporates the equations of classical dynamics, including Newton s equations of motion and equations for random components caused by uncertainties in initial conditions and by Langevin forces. The equations of classical dynamics are coupled with corresponding Liouville or Fokker-Planck equations that describe the evolutions of probability densities that represent the uncertainties. The coupling is effected by fictitious information-based forces that are gradients of the information potential, which, in turn, is a function of the probability densities. The probability densities are associated with mental images both self-image and nonself images (images of external objects that can include other agents). The evolution of the probability densities represents mental dynamics. Then the interaction between the physical and metal aspects of behavior is implemented by feedback from mental to motor dynamics, as represented by the aforementioned fictitious forces. The interaction of a system with its self and nonself images affords unlimited capacity for increase of complexity. There is a biological basis for this model of mental dynamics in the discovery of mirror neurons that learn by imitation. The levels of complexity attained by use of this model match those observed in living systems. To establish a mechanism for increasing the complexity of dynamics of an active system, the model enables exploitation of a chain of reflections exemplified by questions of the form, "What do you think that I think that you think...?" Mathematically, each level of reflection is represented in the form of an attractor performing the corresponding level of abstraction with more details removed from higher levels. The model can be used to describe the behaviors, not only of biological systems, but also of ecological, social, and economics ones.

  13. NASA Tech Briefs, February 2009

    NASA Technical Reports Server (NTRS)

    2009-01-01

    Tech Briefs are short announcements of innovations originating from research and development activities of the National Aeronautics and Space Administration. They emphasize information considered likely to be transferable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. Topics covered include: Measuring Low Concentrations of Liquid Water in Soil; The Mars Science Laboratory Touchdown Test Facility; Non-Contact Measurement of Density and Thickness Variation in Dielectric Materials; Compact Microwave Fourier Spectrum Analyzer; InP Heterojunction Bipolar Transistor Amplifiers to 255 GHz; Combinatorial Generation of Test Suites; In-Phase Power-Combined Frequency Tripler at 300 GHz; Electronic System for Preventing Airport Runway Incursions; Smaller but Fully Functional Backshell for Cable Connector; Glove-Box or Desktop Virtual-Reality System; Composite Layer Manufacturing with Fewer Interruptions; Improved Photoresist Coating for Making CNT Field Emitters; A Simplified Diagnostic Method for Elastomer Bond Durability; Complex Multifunctional Polymer/Carbon-Nanotube Composites; Very High Output Thermoelectric Devices Based on ITO Nanocomposites; Reducing Unsteady Loads on a Piggyback Miniature Submarine; Ultrasonic/Sonic Anchor; Grooved Fuel Rings for Nuclear Thermal Rocket Engines; Pulsed Operation of an Ion Accelerator; Autonomous Instrument Placement for Mars Exploration Rovers; Mission and Assets Database; TCP/IP Interface for the Satellite Orbit Analysis Program (SOAP); Trajectory Calculator for Finite-Radius Cutter on a Lathe; Integrated System Health Management Development Toolkit.

  14. The Actively Caring for People Movement at Virginia Tech and Beyond: Cultivating Compassion and Relationships in Residence Halls

    ERIC Educational Resources Information Center

    McCarty, Shane M.; Mullins, Taris G.; Geller, E. Scott; Shushok, Frank, Jr.

    2013-01-01

    A professor and a group of student leaders initiated the Actively Caring for People (AC4P) Movement to establish a more civil, compassionate, and inclusive culture by inspiring intentional acts of kindness. This article explores the AC4P Movement in a first-year residence hall at Virginia Tech and a second-year residence hall at University of…

  15. Researching Holistic Democracy in Schools. A Response to "Examination of the New Tech Model as a holistic Democracy"

    ERIC Educational Resources Information Center

    Woods, Philip A.

    2017-01-01

    Bradley-Levine reported in her article how she created an opportunity to explore research data with the aim of examining the degree to which New Tech schools were democratic in the sense conceptualized by the notion of holistic democracy. My response is in three parts. The first sets out my understanding of the significance of the model of…

  16. "Digging Deep": Self-Study as a Reflexive Approach to Improving My Practice as an Artist, Researcher and Teacher

    ERIC Educational Resources Information Center

    Scott, Lee

    2014-01-01

    In this article, I show how I enhanced my understanding of my practice as an artist, researcher and teacher using a self-study approach in my recently completed Master of Technology (M.Tech.) dissertation in Graphic Design. As part of my M.Tech. research, I conceptualised and developed a creative teaching tool that I named "PicTopics."…

  17. Chasing Woozles? A Personal Reflection on a Quarter-Century in Ed Tech, and an Attempt to Peer Ahead through the Fog

    ERIC Educational Resources Information Center

    Bergeron, Corrie

    2014-01-01

    While it's easy to get caught up in the frenetic drive to do the Next Big New Thing in educational technology, it's helpful to remember that a lot of important things "don't" change. But, today, we face almost constant change, and that has serious implications for education and ed-tech professionals. This article looks back at where…

  18. Single-Mode WGM Resonators Fabricated by Diamond Turning

    NASA Technical Reports Server (NTRS)

    Grudinin, Ivan; Maleki, Lute; Savchenkov, Anatoliy; Matsko, Andrewy; Strekalov, Dmitry; Iltchenko, Vladimir

    2008-01-01

    A diamond turning process has made possible a significant advance in the art of whispering-gallery-mode (WGM) optical resonators. By use of this process, it is possible to fashion crystalline materials into WGM resonators that have ultrahigh resonance quality factors (high Q values), are compact (ranging in size from millimeters down to tens of microns), and support single electromagnetic modes. This development combines and extends the developments reported in "Few- Mode Whispering-Gallery-Mode Resonators" (NPO-41256), NASA Tech Briefs, Vol. 30, No. 1 (January 2006), page 16a and "Fabrication of Submillimeter Axisymmetric Optical Components" (NPO-42056), NASA Tech Briefs, Vol. 31, No. 5 (May 2007), page 10a. To recapitulate from the first cited prior article: A WGM resonator of this special type consists of a rod, made of a suitable transparent material, from which protrudes a thin circumferential belt of the same material. The belt is integral with the rest of the rod and acts as a circumferential waveguide. If the depth and width of the belt are made appropriately small, then the belt acts as though it were the core of a single-mode optical fiber: the belt and the rod material adjacent to it support a single, circumferentially propagating mode or family of modes. To recapitulate from the second cited prior article: A major step in the fabrication of a WGM resonator of this special type is diamond turning or computer numerically controlled machining of a rod of a suitable transparent crystalline material on an ultrahigh-precision lathe. During the rotation of a spindle in which the rod is mounted, a diamond tool is used to cut the rod. A computer program is used to control stepping motors that move the diamond tool, thereby controlling the shape cut by the tool. Because the shape can be controlled via software, it is possible to choose a shape designed to optimize a resonator spectrum, including, if desired, to limit the resonator to supporting a single mode. After diamond turning, a resonator can be polished to increase its Q. By virtue of its largely automated, computer-controlled nature, the process is suitable for mass production of nominally identical single-mode WGM resonators. In a demonstration of the capabilities afforded by this development, a number of WGM resonators of various designs were fabricated side by side on the surface of a single CaF2 rod (see figure).

  19. Lesbians and tech: Analyzing digital media technologies and lesbian experience.

    PubMed

    Harris, Angelique; Daniels, Jessie

    2017-11-28

    The rise of the popular Internet has coincided with the increasing acceptance, even assimilation, of lesbians into mainstream society. The visible presence of lesbians in the tech industry and in digitally mediated spaces raises a set of questions about the relationship between queer identities and Internet technologies. This introduction to a special issue of Journal of Lesbian Studies explores some of these questions and provides an overview of the articles that follow.

  20. NASA new technology identification and evaluation

    NASA Technical Reports Server (NTRS)

    Lizak, R. M.

    1983-01-01

    Before disclosure in NASA Tech Briefs, reports of new technology are transmitted to the cognizant NASA Field Center Technology Utilization Office (TUO) where they are evaluated for novelty, technical validity and significance, and nonaerospace utility. If uncertainty exists regarding these criteria, the documentation may be forwarded to SRI International for evaluation before recommending publication. From November 1980 to November 1983, some 3,103 technologies were evaluated by SRI. Activities performed and progress made are summarized.

  1. COSMIC monthly progress report

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Activities of the Computer Software Management and Information Center (COSMIC) are summarized for the month of August, 1993. Tables showing the current inventory of programs available from COSMIC are presented and program processing and evaluation activities are discussed. Ten articles were prepared for publication in the NASA Tech Brief Journal. These articles (included in this report) describe the following software items: (1) MOM3D - A Method of Moments Code for Electromagnetic Scattering (UNIX Version); (2) EM-Animate - Computer Program for Displaying and Animating the Steady-State Time-Harmonic Electromagnetic Near Field and Surface-Current Solutions; (3) MOM3D - A Method of Moments Code for Electromagnetic Scattering (IBM PC Version); (4) M414 - MIL-STD-414 Variable Sampling Procedures Computer Program; (5) MEDOF - Minimum Euclidean Distance Optimal Filter; (6) CLIPS 6.0 - C Language Integrated Production System, Version 6.0 (Macintosh Version); (7) CLIPS 6.0 - C Language Integrated Production System, Version 6.0 (IBM PC Version); (8) CLIPS 6.0 - C Language Integrated Production System, Version 6.0 (UNIX Version); (9) CLIPS 6.0 - C Language Integrated Production System, Version 6.0 (DEC VAX VMS Version); and (10) TFSSRA - Thick Frequency Selective Surface with Rectangular Apertures. Activities in the areas of marketing, customer service, benefits identification, maintenance and support, and dissemination are also described along with a budget summary.

  2. Patient Autonomy in a High-Tech Care Context - A Theoretical Framework.

    PubMed

    Lindberg, Catharina; Fagerström, Cecilia; Willman, Ania

    2018-06-12

    To synthesise and interpret previous findings with the aim of developing a theoretical framework for patient autonomy in a high-tech care context. Putting the somewhat abstract concept of patient autonomy into practice can prove difficult since when it is highlighted in healthcare literature the patient perspective is often invisible. Autonomy presumes that a person has experience, education, self-discipline and decision-making capacity. Reference to autonomy in relation to patients in high-tech care environments could therefore be considered paradoxical, as in most cases these persons are vulnerable, with impaired physical and/or metacognitive capacity, thus making extended knowledge of patient autonomy for these persons even more important. Theory development. The basic approaches in theory development by Walker and Avant were used to create a theoretical framework through an amalgamation of the results from three qualitative studies conducted previously by the same research group. A theoretical framework - the control-partnership-transition framework - was delineated disclosing different parts co-creating the prerequisites for patient autonomy in high-tech care environments. Assumptions and propositional statements that guide theory development were also outlined, as were guiding principles for use in day-to-day nursing care. Four strategies used by patients were revealed: the strategy of control, the strategy of partnership, the strategy of trust, and the strategy of transition. An extended knowledge base, founded on theoretical reasoning about patient autonomy, could facilitate nursing care that would allow people to remain/become autonomous in the role of patient in high-tech care environments. The control-partnership-transition framework would be of help in supporting and defending patient autonomy when caring for individual patients, as it provides an understanding of the strategies employed by patients to achieve autonomy in high-tech care contexts. The guiding principles for patient autonomy presented could be used in nursing guidelines. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  3. Perspectives on Advanced Learning Technologies and Learning Networks and Future Aerospace Workforce Environments

    NASA Technical Reports Server (NTRS)

    Noor, Ahmed K. (Compiler)

    2003-01-01

    An overview of the advanced learning technologies is given in this presentation along with a brief description of their impact on future aerospace workforce development. The presentation is divided into five parts (see Figure 1). In the first part, a brief historical account of the evolution of learning technologies is given. The second part describes the current learning activities. The third part describes some of the future aerospace systems, as examples of high-tech engineering systems, and lists their enabling technologies. The fourth part focuses on future aerospace research, learning and design environments. The fifth part lists the objectives of the workshop and some of the sources of information on learning technologies and learning networks.

  4. Hardware Implementation of Lossless Adaptive Compression of Data From a Hyperspectral Imager

    NASA Technical Reports Server (NTRS)

    Keymeulen, Didlier; Aranki, Nazeeh I.; Klimesh, Matthew A.; Bakhshi, Alireza

    2012-01-01

    Efficient onboard data compression can reduce the data volume from hyperspectral imagers on NASA and DoD spacecraft in order to return as much imagery as possible through constrained downlink channels. Lossless compression is important for signature extraction, object recognition, and feature classification capabilities. To provide onboard data compression, a hardware implementation of a lossless hyperspectral compression algorithm was developed using a field programmable gate array (FPGA). The underlying algorithm is the Fast Lossless (FL) compression algorithm reported in Fast Lossless Compression of Multispectral- Image Data (NPO-42517), NASA Tech Briefs, Vol. 30, No. 8 (August 2006), p. 26 with the modification reported in Lossless, Multi-Spectral Data Comressor for Improved Compression for Pushbroom-Type Instruments (NPO-45473), NASA Tech Briefs, Vol. 32, No. 7 (July 2008) p. 63, which provides improved compression performance for data from pushbroom-type imagers. An FPGA implementation of the unmodified FL algorithm was previously developed and reported in Fast and Adaptive Lossless Onboard Hyperspectral Data Compression System (NPO-46867), NASA Tech Briefs, Vol. 36, No. 5 (May 2012) p. 42. The essence of the FL algorithm is adaptive linear predictive compression using the sign algorithm for filter adaption. The FL compressor achieves a combination of low complexity and compression effectiveness that exceeds that of stateof- the-art techniques currently in use. The modification changes the predictor structure to tolerate differences in sensitivity of different detector elements, as occurs in pushbroom-type imagers, which are suitable for spacecraft use. The FPGA implementation offers a low-cost, flexible solution compared to traditional ASIC (application specific integrated circuit) and can be integrated as an intellectual property (IP) for part of, e.g., a design that manages the instrument interface. The FPGA implementation was benchmarked on the Xilinx Virtex IV LX25 device, and ported to a Xilinx prototype board. The current implementation has a critical path of 29.5 ns, which dictated a clock speed of 33 MHz. The critical path delay is end-to-end measurement between the uncompressed input data and the output compression data stream. The implementation compresses one sample every clock cycle, which results in a speed of 33 Msample/s. The implementation has a rather low device use of the Xilinx Virtex IV LX25, making the total power consumption of the implementation about 1.27 W.

  5. Evaluation of Dipsol IZ-C17 LHE Zinc-Nickel Plating (Briefing Charts)

    DTIC Science & Technology

    2007-01-24

    Results • Based on Successful Test Results an LHE Alkaline Zn-Ni Formula was Selected for Further Development – Identified as Dipsol IZ-C17 (13 to...Hydrogen Embrittlement Test Methods • Select Repair Procedures 16. ENVIRONMENTAL ASSURANCE 2006 Status • IZ-C17 Tech Bulletin (Draft) Prepared...Corrosion Testing (Salt Spray and Galvanic) – Fluid Immersion (ASTM F 483) – Lubricity (Fasteners) – Strippability (BCA – Ammonium Nitrate pH 10) – Throwing

  6. Technology transfer from NASA to targeted industries, volume 1

    NASA Technical Reports Server (NTRS)

    Mccain, Wayne; Schroer, Bernard J.; Souder, William E.; Spann, Mary S.; Watters, Harry; Ziemke, M. Carl

    1993-01-01

    This report summarizes the University of Alabama in Huntsville (UAH) technology transfer to three target industries with focus on the apparel manufacturing industry in Alabama. Also included in this report are an analysis of the 1992 problem statements submitted by Alabama firms, the results of the survey of 1987-88 NASA Tech Brief requests, the results of the followup to Alabama submitted problem statements, and the development of the model describing the MSFC technology transfer process.

  7. Update on Waveguide-Embedded Differential MMIC Amplifiers

    NASA Technical Reports Server (NTRS)

    Kangaslahti, Pekka; Schleht, Erich

    2010-01-01

    There is an update on the subject matter of Differential InP HEMT MMIC Amplifiers Embedded in Waveguides (NPO-42857) NASA Tech Briefs, Vol. 33, No. 9 (September 2009), page 35. To recapitulate: Monolithic microwave integrated-circuit (MMIC) amplifiers of a type now being developed for operation at frequencies of hundreds of gigahertz contain InP high-electron-mobility transistors (HEMTs) in a differential configuration. The MMICs are designed integrally with, and embedded in, waveguide packages. The instant work does not mention InP HEMTs but otherwise reiterates part of the subject matter of the cited prior article, with emphasis on the following salient points: An MMIC is mounted in the electric-field plane ("E-plane") of a waveguide and includes a finline transition to each differential-amplifier stage. The differential configuration creates a virtual ground within each pair of transistor-gate fingers, eliminating the need for external radio-frequency grounding. This work concludes by describing a single-stage differential submillimeter-wave amplifier packaged in a rectangular waveguide and summarizing results of tests of this amplifier at frequencies of 220 and 305 GHz.

  8. HDF-EOS 5 Validator

    NASA Technical Reports Server (NTRS)

    Ullman, Richard; Bane, Bob; Yang, Jingli

    2008-01-01

    A computer program partly automates the task of determining whether an HDF-EOS 5 file is valid in that it conforms to specifications for such characteristics as attribute names, dimensionality of data products, and ranges of legal data values. ["HDF-EOS" and variants thereof are defined in "Converting EOS Data From HDF-EOS to netCDF" (GSC-15007-1), which is the first of several preceding articles in this issue of NASA Tech Briefs.] Previously, validity of a file was determined in a tedious and error-prone process in which a person examined human-readable dumps of data-file-format information. The present software helps a user to encode the specifications for an HDFEOS 5 file, and then inspects the file for conformity with the specifications: First, the user writes the specifications in Extensible Markup Language (XML) by use of a document type definition (DTD) that is part of the program. Next, the portion of the program (denoted the validator) that performs the inspection is executed, using, as inputs, the specifications in XML and the HDF-EOS 5 file to be validated. Finally, the user examines the output of the validator.

  9. Traffic-Light-Preemption Vehicle-Transponder Software Module

    NASA Technical Reports Server (NTRS)

    Bachelder, Aaron; Foster, Conrad

    2005-01-01

    A prototype wireless data-communication and control system automatically modifies the switching of traffic lights to give priority to emergency vehicles. The system, which was reported in several NASA Tech Briefs articles at earlier stages of development, includes a transponder on each emergency vehicle, a monitoring and control unit (an intersection controller) at each intersection equipped with traffic lights, and a central monitoring subsystem. An essential component of the system is a software module executed by a microcontroller in each transponder. This module integrates and broadcasts data on the position, velocity, acceleration, and emergency status of the vehicle. The position, velocity, and acceleration data are derived partly from the Global Positioning System, partly from deductive reckoning, and partly from a diagnostic computer aboard the vehicle. The software module also monitors similar broadcasts from other vehicles and from intersection controllers, informs the driver of which intersections it controls, and generates visible and audible alerts to inform the driver of any other emergency vehicles that are close enough to create a potential hazard. The execution of the software module can be monitored remotely and the module can be upgraded remotely and, hence, automatically

  10. Tool for Analysis and Reduction of Scientific Data

    NASA Technical Reports Server (NTRS)

    James, Mark

    2006-01-01

    The Automated Scheduling and Planning Environment (ASPEN) computer program has been updated to version 3.0. ASPEN as a whole (up to version 2.0) has been summarized, and selected aspects of ASPEN have been discussed in several previous NASA Tech Briefs articles. Restated briefly, ASPEN is a modular, reconfigurable, application software framework for solving batch problems that involve reasoning about time, activities, states, and resources. Applications of ASPEN can include planning spacecraft missions, scheduling of personnel, and managing supply chains, inventories, and production lines. ASPEN 3.0 can be customized for a wide range of applications and for a variety of computing environments that include various central processing units and randomaccess memories. Domain-specific reasoning modules (e.g., modules for determining orbits for spacecraft) can easily be plugged into ASPEN 3.0. Improvements over other, similar software that have been incorporated into ASPEN 3.0 include a provision for more expressive time-line values, new parsing capabilities afforded by an ASPEN language based on Extensible Markup Language, improved search capabilities, and improved interfaces to other, utility-type software (notably including MATLAB).

  11. Scheduling with Automatic Resolution of Conflicts

    NASA Technical Reports Server (NTRS)

    Clement, Bradley; Schaffer, Steve

    2006-01-01

    DSN Requirement Scheduler is a computer program that automatically schedules, reschedules, and resolves conflicts for allocations of resources of NASA s Deep Space Network (DSN) on the basis of ever-changing project requirements for DSN services. As used here, resources signifies, primarily, DSN antennas, ancillary equipment, and times during which they are available. Examples of project-required DSN services include arraying, segmentation, very-long-baseline interferometry, and multiple spacecraft per aperture. Requirements can include periodic reservations of specific or optional resources during specific time intervals or within ranges specified in terms of starting times and durations. This program is built on the Automated Scheduling and Planning Environment (ASPEN) software system (aspects of which have been described in previous NASA Tech Briefs articles), with customization to reflect requirements and constraints involved in allocation of DSN resources. Unlike prior DSN-resource- scheduling programs that make single passes through the requirements and require human intervention to resolve conflicts, this program makes repeated passes in a continuing search for all possible allocations, provides a best-effort solution at any time, and presents alternative solutions among which users can choose.

  12. Viewing ISS Data in Real Time via the Internet

    NASA Technical Reports Server (NTRS)

    Myers, Gerry; Chamberlain, Jim

    2004-01-01

    EZStream is a computer program that enables authorized users at diverse terrestrial locations to view, in real time, data generated by scientific payloads aboard the International Space Station (ISS). The only computation/communication resource needed for use of EZStream is a computer equipped with standard Web-browser software and a connection to the Internet. EZStream runs in conjunction with the TReK software, described in a prior NASA Tech Briefs article, that coordinates multiple streams of data for the ground communication system of the ISS. EZStream includes server components that interact with TReK within the ISS ground communication system and client components that reside in the users' remote computers. Once an authorized client has logged in, a server component of EZStream pulls the requested data from a TReK application-program interface and sends the data to the client. Future EZStream enhancements will include (1) extensions that enable the server to receive and process arbitrary data streams on its own and (2) a Web-based graphical-user-interface-building subprogram that enables a client who lacks programming expertise to create customized display Web pages.

  13. Abstract-Reasoning Software for Coordinating Multiple Agents

    NASA Technical Reports Server (NTRS)

    Clement, Bradley; Barrett, Anthony; Rabideau, Gregg; Knight, Russell

    2003-01-01

    A computer program for scheduling the activities of multiple agents that share limited resources has been incorporated into the Automated Scheduling and Planning Environment (ASPEN) software system, aspects of which have been reported in several previous NASA Tech Briefs articles. In the original intended application, the agents would be multiple spacecraft and/or robotic vehicles engaged in scientific exploration of distant planets. The program could also be used on Earth in such diverse settings as production lines and military maneuvers. This program includes a planning/scheduling subprogram of the iterative repair type that reasons about the activities of multiple agents at abstract levels in order to greatly improve the scheduling of their use of shared resources. The program summarizes the information about the constraints on, and resource requirements of, abstract activities on the basis of the constraints and requirements that pertain to their potential refinements (decomposition into less-abstract and ultimately to primitive activities). The advantage of reasoning about summary information is that time needed to find consistent schedules is exponentially smaller than the time that would be needed for reasoning about the same tasks at the primitive level.

  14. Forming system of strategic innovation management at high-tech engineering enterprises

    NASA Astrophysics Data System (ADS)

    Ergunova, O. T.; Lizunkov, V. G.; Malushko, E. Yu; Marchuk, V. I.; Ignatenko, A. Yu

    2017-02-01

    The article considers the processes of forming the strategic system of innovative activity management at the enterprises of a high-tech mechanical engineering complex (MEC) that are traditionally decisive in shaping the economic base of Russia. The authors proposed a method of designing a strategic system of innovative activity management at the MEC’s enterprises of the region which is based on the consideration of means and opportunities of the enterprise to implement intellectual activity. The proposed methodology and the empirical results constituted a ground for developing a system of strategic innovation management when performing the state-guaranteed order at the hi-tech MEC enterprises. Its implementation will help to reduce the level of uncertainty throughout the entire life cycle of an innovative activity product.

  15. Riblet Research

    NASA Technical Reports Server (NTRS)

    1985-01-01

    Research at Langley on skin friction drag was described in Tech Briefs. 3M engineers suggested to Langley that grooves molded into a lightweight plastic film with adhesive backing and pressed on an airplane would be simpler than cutting grooves directly onto the surface. Boeing became involved and tested the "riblet" on an olympic rowing shell; the US won a silver medal. Based on the riblet-like projections on shark's skins, the technology may provide a 5 percent fuel saving for airplanes. Product is no longer commercially available.

  16. The Development of Shared Mental Models during Air Battlespace Collective Training using Dispersed Networked Systems

    DTIC Science & Technology

    2009-10-01

    participants. A day in the life of the MTDS CCD facility followed the cycle of PBED. The day began with mass briefings setting the context and overall...debriefings, beginning with a formation level debriefing. The final activity was a mass debriefing in which all participants ran through a...lessons learned and little of tech issues” - EXERCISE NORTHERN GOSHAWK Tornado GR4 • “ Mass debrief was very information with many tactical lessons being

  17. Federal Technology Catalog 1982: Summaries of practical technology

    NASA Astrophysics Data System (ADS)

    The catalog presents summaries of practical technology selected for commercial potential and/or promising applications to the fields of computer technology, electrotechnology, energy, engineering, life sciences, machinery and tools, manufacturing, materials, physical sciences, and testing and instrumentation. Each summary not only describes a technology, but gives a source for further information. This publication describes some 1,100 new processes, inventions, equipment, software, and techniques developed by and for dozens of Federal agencies during 1982. Included is coverage of NASA Tech Briefs, DOE Energygrams, and Army Manufacturing Notes.

  18. Brief Articles for Latino Parents, 1999 Edition.

    ERIC Educational Resources Information Center

    ERIC Clearinghouse on Rural Education and Small Schools, Charleston, WV.

    This packet contains six briefs developed specifically for Spanish-speaking Latino parents, and English translations of the briefs. These briefs state what researchers and practitioners have learned about various ways parents can help their children do well in school. Earlier editions of brief articles for parents have been used in various ways by…

  19. Defect scanning technology in the works

    Treesearch

    Philip A. Araman; R. Conners

    1994-01-01

    This article describes the defect scanning technology being developed by Virginia Tech and U.S. Forest Service scientists in Blacksburg, Virginia to scan full sized hardwood lumber at industrial speeds.

  20. Scanning Miniature Microscopes without Lenses

    NASA Technical Reports Server (NTRS)

    Wang, Yu

    2009-01-01

    The figure schematically depicts some alternative designs of proposed compact, lightweight optoelectronic microscopes that would contain no lenses and would generate magnified video images of specimens. Microscopes of this type were described previously in Miniature Microscope Without Lenses (NPO - 20218), NASA Tech Briefs, Vol. 22, No. 8 (August 1998), page 43 and Reflective Variants of Miniature Microscope Without Lenses (NPO 20610), NASA Tech Briefs, Vol. 26, No. 9 (September 1999), page 6a. To recapitulate: In the design and construction of a microscope of this type, the focusing optics of a conventional microscope are replaced by a combination of a microchannel filter and a charge-coupled-device (CCD) image detector. Elimination of focusing optics reduces the size and weight of the instrument and eliminates the need for the time-consuming focusing operation. The microscopes described in the cited prior articles contained two-dimensional CCDs registered with two-dimensional arrays of microchannels and, as such, were designed to produce full two-dimensional images, without need for scanning. The microscopes of the present proposal would contain one-dimensional (line image) CCDs registered with linear arrays of microchannels. In the operation of such a microscope, one would scan a specimen along a line perpendicular to the array axis (in other words, one would scan in pushbroom fashion). One could then synthesize a full two-dimensional image of the specimen from the line-image data acquired at one-pixel increments of position along the scan. In one of the proposed microscopes, a beam of unpolarized light for illuminating the specimen would enter from the side. This light would be reflected down onto the specimen by a nonpolarizing beam splitter attached to the microchannels at their lower ends. A portion of the light incident on the specimen would be reflected upward, through the beam splitter and along the microchannels, to form an image on the CCD. If the nonpolarizing beam splitter were replaced by a polarizing one, then the specimen would be illuminated by s-polarized light. Upon reflection from the specimen, some of the s-polarized light would become p-polarized. Only the p-polarized light would contribute to the image on the CCD; in other words, the image would contain information on the polarization rotating characteristic of the specimen.

  1. Craft Knowledge: Of Disciplinarity in Writing Studies

    ERIC Educational Resources Information Center

    Johnson, Robert R.

    2010-01-01

    This article argues that craft knowledge can provide a disciplinary rationale for writing studies. It draws from the ancient concepts of teche, phronesis, and the four causes of making and makes the case for a definition of disciplinary knowledge fitting for writing studies. The article concludes with a conceptual framework that can serve as a…

  2. Making innovative tattoo ink products with improved safety: possible and impossible ingredients in practical usage.

    PubMed

    Dirks, Michael

    2015-01-01

    Today's tattoo inks are no longer just simple solids in liquid suspension. Nowadays, these inks are high-tech dispersions made from finely spread pigments in a binder-solvent mixture. These so-called colour dispersions must follow the modern standards of tattooing, which are increasing every year. They must be rich in chromophoric pigments and yet fluid, they must not dry rapidly, and there should be no occurrence of any sedimentation, even during longer tattoo seasons. An innovative tattoo ink should enable long-lasting, brilliant tattoos without a negative impact on the artist's workflow and of course without endangering the consumer. The high standard in tattoos, regarding the motives and techniques, that is witnessed today could not be achieved by the artists without quality tools and modern tattoo ink. This article will give the reader a brief overview of the different ingredients of tattoo ink and of the function of binding agents and solvents in modern tattoo ink as well as describe what additives are used to achieve the desired behaviour during application. Furthermore, the article will take a look into the pigments that are used in tattoo ink and show why certain pigments are not suited for tattoo ink. The differences, advantages and disadvantages of organic and inorganic pigments will be explained. © 2015 S. Karger AG, Basel.

  3. Supercapacitor Electrolyte Solvents with Liquid Range Below -80 C

    NASA Technical Reports Server (NTRS)

    Brandon, Erik; Smart, Marshall; West, William

    2010-01-01

    A previous NASA Tech Brief ["Low-Temperature Supercapacitors" (NPO-44386) NASA Tech Briefs, Vol. 32, No 7 (July 2008), page 32] detailed ongoing efforts to develop non-aqueous supercapacitor electrolytes capable of supporting operation at temperatures below commercially available cells (which are typically limited to charging and discharging at > or equal to -40 C). These electrolyte systems may enable energy storage and power delivery for systems operating in extreme environments, such as those encountered in the Polar regions on Earth or in the exploration of space. Supercapacitors using these electrolytes may also offer improved power delivery performance at moderately low temperatures (e.g. -40 to 0 C) relative to currently available cells, offering improved cold-cranking and cold-weather acceleration capabilities for electrical or hybrid vehicles. Supercapacitors store charge at the electrochemical double-layer, formed at the interface between a high surface area electrode material and a liquid electrolyte. The current approach to extending the low-temperature limit of the electrolyte focuses on using binary solvent systems comprising a high-dielectric-constant component (such as acetonitrile) in conjunction with a low-melting-point co-solvent (such as organic formates, esters, and ethers) to depress the freezing point of the system, while maintaining sufficient solubility of the salt. Recent efforts in this area have led to the identification of an electrolyte solvent formulation with a freezing point of -85.7 C, which is achieved by using a 1:1 by volume ratio of acetonitrile to 1,3-dioxolane

  4. Test Waveform Applications for JPL STRS Operating Environment

    NASA Technical Reports Server (NTRS)

    Lux, James P.; Peters, Kenneth J.; Taylor, Gregory H.; Lang, Minh; Stern, Ryan A.; Duncan, Courtney B.

    2013-01-01

    This software demonstrates use of the JPL Space Telecommunications Radio System (STRS) Operating Environment (OE), tests APIs (application programming interfaces) presented by JPL STRS OE, and allows for basic testing of the underlying hardware platform. This software uses the JPL STRS Operating Environment ["JPL Space Tele com - munications Rad io System Operating Environment,"(NPO-4776) NASA Tech Briefs, commercial edition, Vol. 37, No. 1 (January 2013), p. 47] to interact with the JPL-SDR Software Defined Radio developed for the CoNNeCT (COmmunications, Navigation, and Networking rEconfigurable Testbed) Project as part of the SCaN Testbed installed on the International Space Station (ISS). These are the first applications that are compliant with the new NASA STRS Architecture Standard. Several example waveform applications are provided to demonstrate use of the JPL STRS OE for the JPL-SDR platform used for the CoNNeCT Project. The waveforms provide a simple digitizer and playback capability for the SBand RF slice, and a simple digitizer for the GPS slice [CoNNeCT Global Positioning System RF Module, (NPO-47764) NASA Tech Briefs, commercial edition, Vol. 36, No. 3 (March 2012), p. 36]. These waveforms may be used for hardware test, as well as for on-orbit or laboratory checkout. Additional example waveforms implement SpaceWire and timer modules, which can be used for time transfer and demonstration of communication between the two Xilinx FPGAs in the JPLSDR. The waveforms are also compatible with ground-based use of the JPL STRS OE on radio breadboards and Linux.

  5. HumanisTech Education--A Recurring Dilemma

    ERIC Educational Resources Information Center

    Litz, Charles; Kittleson, Howard

    1975-01-01

    In school administration, is today's emphasis on the managerial techniques of business and industry reminiscent of a turn-of-the-century movement? This article traces the historical background of where we are now in education administration. (Editor)

  6. Envisioning the Future

    ERIC Educational Resources Information Center

    Fingal, Diana

    2010-01-01

    This article presents an interview with Dave Moursund, the first executive director of the International Society for Technology in Education (ISTE). In this interview, Moursund shares his opinions about ed tech today and predictions about where it is heading.

  7. Entrepreneurship.

    PubMed

    Yetisen, Ali K; Volpatti, Lisa R; Coskun, Ahmet F; Cho, Sangyeon; Kamrani, Ehsan; Butt, Haider; Khademhosseini, Ali; Yun, Seok Hyun

    2015-01-01

    High-tech businesses are the driving force behind global knowledge-based economies. Academic institutions have positioned themselves to serve the high-tech industry through consulting, licensing, and university spinoffs. The awareness of commercialization strategies and building an entrepreneurial culture can help academics to efficiently transfer their inventions to the market to achieve the maximum value. Here, the concept of high-tech entrepreneurship is discussed from lab to market in technology-intensive sectors such as nanotechnology, photonics, and biotechnology, specifically in the context of lab-on-a-chip devices. This article provides strategies for choosing a commercialization approach, financing a startup, marketing a product, and planning an exit. Common reasons for startup company failures are discussed and guidelines to overcome these challenges are suggested. The discussion is supplemented with case studies of successful and failed companies. Identifying a market need, assembling a motivated management team, managing resources, and obtaining experienced mentors lead to a successful exit.

  8. Ultrasonic/Sonic Mechanisms for Drilling and Coring

    NASA Technical Reports Server (NTRS)

    Bar-Cohen, Yoseph; Sherrit, Stewart; Dolgin, Benjamin; Askin, Steve; Peterson, Thomas M.; Bell, Bill; Kroh, Jason; Pal, Dharmendra; Krahe, Ron; Du, Shu

    2003-01-01

    Two apparatuses now under development are intended to perform a variety of deep-drilling, coring, and sensing functions for subsurface exploration of rock and soil. These are modified versions of the apparatuses described in Ultrasonic/Sonic Drill/Corers With Integrated Sensors (NPO-20856), NASA Tech Briefs, Vol. 25, No. 1 (January 2001), page 38. In comparison with the drilling equipment traditionally used in such exploration, these apparatuses weigh less and consume less power. Moreover, unlike traditional drills and corers, these apparatuses function without need for large externally applied axial forces.

  9. SpaceX CRS-14 What's On Board Science Briefing

    NASA Image and Video Library

    2018-04-01

    Dan Close, chief scientific officer at 490 BioTech, discusses the company's Metabolic Tracking investigation to evaluate the use of a new method to test, in microgravity, the metabolic impacts of pharmaceutical drugs. This is one of the scientific materials that will be aboard a Dragon spacecraft scheduled for liftoff from Cape Canaveral Air Force Station's Space Launch Complex 40 at 4:30 p.m. EST, on April 2, 2018. The SpaceX Falcon 9 rocket will launch the company's 14th Commercial Resupply Services mission to the space station.

  10. Mission and spacecraft support functions of the Materials Engineering Branch: A space oriented technology resource

    NASA Technical Reports Server (NTRS)

    Fisher, A.; Staugaitis, C. L.

    1974-01-01

    The capabilities of the Materials Engineering Branch (MEB) of the Goddard Space Flight Center, Greenbelt, Maryland, are surveyed. The specific functions of spacecraft materials review, materials processing and information dissemination, and laboratory support, are outlined in the Activity Report. Further detail is provided by case histories of laboratory satellite support and equipment. Project support statistics are shown, and complete listings of MEB publications, patents, and tech briefs are included. MEB staff, and their respective discipline areas and spacecraft liaison associations, are listed.

  11. Bringing space technology down to earth

    NASA Technical Reports Server (NTRS)

    Gray, E. Z.

    1974-01-01

    The direct transfer of space technology to terrestial applications is demonstrated by the use of fuel cells to augment existing electric power-generation facilities. The role of NASA's Technology Utilization Program is discussed in regard to indirect transfer of technology. The Tech Brief program for identifying and reporting innovations, the regional dissemination centers, and the Applications Teams working with other government agencies and the medical community are described. Projects discussed include the development of a lightweight breathing apparatus for firemen, a practical method for separating nonferrous metals from automobile scrap, and a rechargeable heart pacemaker.

  12. Sketches of Innovators in Education: A Collection of Articles on Teaching with Technology by Indiana State University Faculty and Staff. Third Edition.

    ERIC Educational Resources Information Center

    Indiana State Univ., Terre Haute.

    This collection contains the following articles on teaching with technology by faculty and staff at Indiana State University: (1) "Confessions of a Low-Tech Social Scientist" (James Schellenberg); (2) "The New Learning Curve: Creating Online Courses" (Faye Bradshaw); (3) "Practicing What We Preach: The Transformation of a…

  13. Using a Portfolio of Algorithms for Planning and Scheduling

    NASA Technical Reports Server (NTRS)

    Sherwood, Robert; Knight, Russell; Rabideau, Gregg; Chien, Steve; Tran, Daniel; Engelhardt, Barbara

    2003-01-01

    The Automated Scheduling and Planning Environment (ASPEN) software system, aspects of which have been reported in several previous NASA Tech Briefs articles, includes a subsystem that utilizes a portfolio of heuristic algorithms that work synergistically to solve problems. The nature of the synergy of the specific algorithms is that their likelihoods of success are negatively correlated: that is, when a combination of them is used to solve a problem, the probability that at least one of them will succeed is greater than the sum of probabilities of success of the individual algorithms operating independently of each other. In ASPEN, the portfolio of algorithms is used in a planning process of the iterative repair type, in which conflicts are detected and addressed one at a time until either no conflicts exist or a user-defined time limit has been exceeded. At each choice point (e.g., selection of conflict; selection of method of resolution of conflict; or choice of move, addition, or deletion) ASPEN makes a stochastic choice of a combination of algorithms from the portfolio. This approach makes it possible for the search to escape from looping and from solutions that are locally but not globally optimum.

  14. Making Carbon-Nanotube Arrays Using Block Copolymers: Part 2

    NASA Technical Reports Server (NTRS)

    Bronikowski, Michael

    2004-01-01

    Some changes have been incorporated into a proposed method of manufacturing regular arrays of precisely sized, shaped, positioned, and oriented carbon nanotubes. Such arrays could be useful as mechanical resonators for signal filters and oscillators, and as electrophoretic filters for use in biochemical assays. A prior version of the method was described in Block Copolymers as Templates for Arrays of Carbon Nanotubes, (NPO-30240), NASA Tech Briefs, Vol. 27, No. 4 (April 2003), page 56. To recapitulate from that article: As in other previously reported methods, carbon nanotubes would be formed by decomposition of carbon-containing gases over nanometer-sized catalytic metal particles that had been deposited on suitable substrates. Unlike in other previously reported methods, the catalytic metal particles would not be so randomly and densely distributed as to give rise to thick, irregular mats of nanotubes with a variety of lengths, diameters, and orientations. Instead, in order to obtain regular arrays of spaced-apart carbon nanotubes as nearly identical as possible, the catalytic metal particles would be formed in predetermined regular patterns with precise spacings. The regularity of the arrays would be ensured by the use of nanostructured templates made of block copolymers.

  15. Montage Version 3.0

    NASA Technical Reports Server (NTRS)

    Jacob, Joseph; Katz, Daniel; Prince, Thomas; Berriman, Graham; Good, John; Laity, Anastasia

    2006-01-01

    The final version (3.0) of the Montage software has been released. To recapitulate from previous NASA Tech Briefs articles about Montage: This software generates custom, science-grade mosaics of astronomical images on demand from input files that comply with the Flexible Image Transport System (FITS) standard and contain image data registered on projections that comply with the World Coordinate System (WCS) standards. This software can be executed on single-processor computers, multi-processor computers, and such networks of geographically dispersed computers as the National Science Foundation s TeraGrid or NASA s Information Power Grid. The primary advantage of running Montage in a grid environment is that computations can be done on a remote supercomputer for efficiency. Multiple computers at different sites can be used for different parts of a computation a significant advantage in cases of computations for large mosaics that demand more processor time than is available at any one site. Version 3.0 incorporates several improvements over prior versions. The most significant improvement is that this version is accessible to scientists located anywhere, through operational Web services that provide access to data from several large astronomical surveys and construct mosaics on either local workstations or remote computational grids as needed.

  16. Improvement in Recursive Hierarchical Segmentation of Data

    NASA Technical Reports Server (NTRS)

    Tilton, James C.

    2006-01-01

    A further modification has been made in the algorithm and implementing software reported in Modified Recursive Hierarchical Segmentation of Data (GSC- 14681-1), NASA Tech Briefs, Vol. 30, No. 6 (June 2006), page 51. That software performs recursive hierarchical segmentation of data having spatial characteristics (e.g., spectral-image data). The output of a prior version of the software contained artifacts, including spurious segmentation-image regions bounded by processing-window edges. The modification for suppressing the artifacts, mentioned in the cited article, was addition of a subroutine that analyzes data in the vicinities of seams to find pairs of regions that tend to lie adjacent to each other on opposite sides of the seams. Within each such pair, pixels in one region that are more similar to pixels in the other region are reassigned to the other region. The present modification provides for a parameter ranging from 0 to 1 for controlling the relative priority of merges between spatially adjacent and spatially non-adjacent regions. At 1, spatially-adjacent-/spatially- non-adjacent-region merges have equal priority. At 0, only spatially-adjacent-region merges (no spectral clustering) are allowed. Between 0 and 1, spatially-adjacent- region merges have priority over spatially- non-adjacent ones.

  17. Insect-Inspired Optical-Flow Navigation Sensors

    NASA Technical Reports Server (NTRS)

    Thakoor, Sarita; Morookian, John M.; Chahl, Javan; Soccol, Dean; Hines, Butler; Zornetzer, Steven

    2005-01-01

    Integrated circuits that exploit optical flow to sense motions of computer mice on or near surfaces ( optical mouse chips ) are used as navigation sensors in a class of small flying robots now undergoing development for potential use in such applications as exploration, search, and surveillance. The basic principles of these robots were described briefly in Insect-Inspired Flight Control for Small Flying Robots (NPO-30545), NASA Tech Briefs, Vol. 29, No. 1 (January 2005), page 61. To recapitulate from the cited prior article: The concept of optical flow can be defined, loosely, as the use of texture in images as a source of motion cues. The flight-control and navigation systems of these robots are inspired largely by the designs and functions of the vision systems and brains of insects, which have been demonstrated to utilize optical flow (as detected by their eyes and brains) resulting from their own motions in the environment. Optical flow has been shown to be very effective as a means of avoiding obstacles and controlling speeds and altitudes in robotic navigation. Prior systems used in experiments on navigating by means of optical flow have involved the use of panoramic optics, high-resolution image sensors, and programmable imagedata- processing computers.

  18. Application of the Hilbert-Huang Transform to Financial Data

    NASA Technical Reports Server (NTRS)

    Huang, Norden

    2005-01-01

    A paper discusses the application of the Hilbert-Huang transform (HHT) method to time-series financial-market data. The method was described, variously without and with the HHT name, in several prior NASA Tech Briefs articles and supporting documents. To recapitulate: The method is especially suitable for analyzing time-series data that represent nonstationary and nonlinear phenomena including physical phenomena and, in the present case, financial-market processes. The method involves the empirical mode decomposition (EMD), in which a complicated signal is decomposed into a finite number of functions, called "intrinsic mode functions" (IMFs), that admit well-behaved Hilbert transforms. The HHT consists of the combination of EMD and Hilbert spectral analysis. The local energies and the instantaneous frequencies derived from the IMFs through Hilbert transforms can be used to construct an energy-frequency-time distribution, denoted a Hilbert spectrum. The instant paper begins with a discussion of prior approaches to quantification of market volatility, summarizes the HHT method, then describes the application of the method in performing time-frequency analysis of mortgage-market data from the years 1972 through 2000. Filtering by use of the EMD is shown to be useful for quantifying market volatility.

  19. Turbulence and the Stabilization Principle

    NASA Technical Reports Server (NTRS)

    Zak, Michail

    2010-01-01

    Further results of research, reported in several previous NASA Tech Briefs articles, were obtained on a mathematical formalism for postinstability motions of a dynamical system characterized by exponential divergences of trajectories leading to chaos (including turbulence). To recapitulate: Fictitious control forces are introduced to couple the dynamical equations with a Liouville equation that describes the evolution of the probability density of errors in initial conditions. These forces create a powerful terminal attractor in probability space that corresponds to occurrence of a target trajectory with probability one. The effect in ordinary perceived three-dimensional space is to suppress exponential divergences of neighboring trajectories without affecting the target trajectory. Con sequently, the postinstability motion is represented by a set of functions describing the evolution of such statistical quantities as expectations and higher moments, and this representation is stable. The previously reported findings are analyzed from the perspective of the authors Stabilization Principle, according to which (1) stability is recognized as an attribute of mathematical formalism rather than of underlying physics and (2) a dynamical system that appears unstable when modeled by differentiable functions only can be rendered stable by modifying the dynamical equations to incorporate intrinsic stochasticity.

  20. Symbolic Processing Combined with Model-Based Reasoning

    NASA Technical Reports Server (NTRS)

    James, Mark

    2009-01-01

    A computer program for the detection of present and prediction of future discrete states of a complex, real-time engineering system utilizes a combination of symbolic processing and numerical model-based reasoning. One of the biggest weaknesses of a purely symbolic approach is that it enables prediction of only future discrete states while missing all unmodeled states or leading to incorrect identification of an unmodeled state as a modeled one. A purely numerical approach is based on a combination of statistical methods and mathematical models of the applicable physics and necessitates development of a complete model to the level of fidelity required for prediction. In addition, a purely numerical approach does not afford the ability to qualify its results without some form of symbolic processing. The present software implements numerical algorithms to detect unmodeled events and symbolic algorithms to predict expected behavior, correlate the expected behavior with the unmodeled events, and interpret the results in order to predict future discrete states. The approach embodied in this software differs from that of the BEAM methodology (aspects of which have been discussed in several prior NASA Tech Briefs articles), which provides for prediction of future measurements in the continuous-data domain.

  1. Micromechanics and Piezo Enhancements of HyperSizer

    NASA Technical Reports Server (NTRS)

    Arnold, Steven M.; Bednarcyk, Brett A.; Yarrington, Phillip; Collier, Craig S.

    2006-01-01

    The commercial HyperSizer aerospace-composite-material-structure-sizing software has been enhanced by incorporating capabilities for representing coupled thermal, piezoelectric, and piezomagnetic effects on the levels of plies, laminates, and stiffened panels. This enhancement is based on a formulation similar to that of the pre-existing HyperSizer capability for representing thermal effects. As a result of this enhancement, the electric and/or magnetic response of a material or structure to a mechanical or thermal load, or its mechanical response to an applied electric or magnetic field can be predicted. In another major enhancement, a capability for representing micromechanical effects has been added by establishment of a linkage between HyperSizer and Glenn Research Center s Micromechanics Analysis Code With Generalized Method of Cells (MAC/GMC) computer program, which was described in several prior NASA Tech Briefs articles. The linkage enables Hyper- Sizer to localize to the fiber and matrix level rather than only to the ply level, making it possible to predict local failures and to predict properties of plies from those of the component fiber and matrix materials. Advanced graphical user interfaces and database structures have been developed to support the new HyperSizer micromechanics capabilities.

  2. Progress Toward a Compact, Highly Stable Ion Clock

    NASA Technical Reports Server (NTRS)

    Prestage, John; Chung, Sang

    2009-01-01

    There was an update on the subject of two previous NASA Tech Briefs articles: Compact, Highly Stable Ion Clock (NPO-43075), Vol. 32, No. 5 (May 2008), page 63; and Neon as a Buffer Gas for a Mercury-Ion Clock (NPO-42919), Vol. 32, No. 7 (July 2008), page 62. To recapitulate: A developmental miniature mercury-ion clock has stability comparable to that of a hydrogen-maser clock. The ion-handling components are housed in a sealed vacuum tube, wherein a getter pump maintains the partial vacuum, and the evacuated tube is backfilled with mercury vapor in a neon buffer gas. There was progress in the development of the clock, with emphasis on the design, fabrication, pump-down, and bake-out of the vacuum tube (based on established practice in the travelingwave- tube-amplifier industry) and the ability of the tube to retain a vacuum after a year of operation. Other developments include some aspects of the operation of mercury-vapor source (a small appendage oven containing HgO) so as to maintain the optimum low concentration of mercury vapor, and further efforts to miniaturize the vacuum and optical subsystems to fit within a volume of 2 L.

  3. Software for Optimizing Plans Involving Interdependent Goals

    NASA Technical Reports Server (NTRS)

    Estlin, Tara; Gaines, Daniel; Rabideau, Gregg

    2005-01-01

    A computer program enables construction and optimization of plans for activities that are directed toward achievement of goals that are interdependent. Goal interdependence is defined as the achievement of one or more goals affecting the desirability or priority of achieving one or more other goals. This program is overlaid on the Automated Scheduling and Planning Environment (ASPEN) software system, aspects of which have been described in a number of prior NASA Tech Briefs articles. Unlike other known or related planning programs, this program considers interdependences among goals that can change between problems and provides a language for easily specifying such dependences. Specifications of the interdependences can be formulated dynamically and provided to the associated planning software as part of the goal input. Then an optimization algorithm provided by this program enables the planning software to reason about the interdependences and incorporate them into an overall objective function that it uses to rate the quality of a plan under construction and to direct its optimization search. In tests on a series of problems of planning geological experiments by a team of instrumented robotic vehicles (rovers) on new terrain, this program was found to enhance plan quality.

  4. Post-Flight Estimation of Motion of Space Structures: Part 1

    NASA Technical Reports Server (NTRS)

    Brugarolas, Paul; Breckenridge, William

    2008-01-01

    A computer program estimates the relative positions and orientations of two space structures from data on the angular positions and distances of fiducial objects on one structure as measured by a target tracking electronic camera and laser range finders on another structure. The program is written specifically for determining the relative alignments of two antennas, connected by a long truss, deployed in outer space from a space shuttle. The program is based partly on transformations among the various coordinate systems involved in the measurements and on a nonlinear mathematical model of vibrations of the truss. The program implements a Kalman filter that blends the measurement data with data from the model. Using time series of measurement data from the tracking camera and range finders, the program generates time series of data on the relative position and orientation of the antennas. A similar program described in a prior NASA Tech Briefs article was used onboard for monitoring the structures during flight. The present program is more precise and designed for use on Earth in post-flight processing of the measurement data to enable correction, for antenna motions, of scientific data acquired by use of the antennas.

  5. CHEM-Based Self-Deploying Spacecraft Radar Antennas

    NASA Technical Reports Server (NTRS)

    Sokolowski, Witold; Huang, John; Ghaffarian, Reza

    2004-01-01

    A document proposes self-deploying spacecraft radar antennas based on cold hibernated elastic memory (CHEM) structures. Described in a number of prior NASA Tech Briefs articles, the CHEM concept is one of utilizing open-cell shape-memory-polymer (SMP) foams to make lightweight structures that can be compressed for storage and can later be expanded, then rigidified for use. A CHEM-based antenna according to the proposal would comprise three layers of microstrip patches and transmission lines interspersed with two flat layers of SMP foam, which would serve as both dielectric spacers and as means of deployment. The SMP foam layers would be fabricated at full size at a temperature below the SMP glass-transition temperature (Tg). The layers would be assembled into a unitary structure, which, at temperature above Tg, would be compacted to much smaller thickness, then rolled up for storage. Next, the structure would be cooled to below Tg and kept there during launch. Upon reaching the assigned position in outer space, the structure would be heated above Tg to make it rebound to its original size and shape. The structure as thus deployed would then be rigidified by natural cooling to below Tg

  6. Processing AIRS Scientific Data Through Level 2

    NASA Technical Reports Server (NTRS)

    Oliphant, Robert; Lee, Sung-Yung; Chahine, Moustafa; Susskind, Joel; arnet, Christopher; McMillin, Larry; Goldberg, Mitchell; Blaisdell, John; Rosenkranz, Philip; Strow, Larrabee

    2007-01-01

    The Atmospheric Infrared Spectrometer (AIRS) Science Processing System (SPS) is a collection of computer programs, denoted product generation executives (PGEs), for processing the readings of the AIRS suite of infrared and microwave instruments orbiting the Earth aboard NASA s Aqua spacecraft. AIRS SPS at an earlier stage of development was described in "Initial Processing of Infrared Spectral Data' (NPO-35243), NASA Tech Briefs, Vol. 28, No. 11 (November 2004), page 39. To recapitulate: Starting from level 0 (representing raw AIRS data), the PGEs and their data products are denoted by alphanumeric labels (1A, 1B, and 2) that signify the successive stages of processing. The cited prior article described processing through level 1B (the level-2 PGEs were not yet operational). The level-2 PGEs, which are now operational, receive packages of level-1B geolocated radiance data products and produce such geolocated geophysical atmospheric data products such as temperature and humidity profiles. The process of computing these geophysical data products is denoted "retrieval" and is quite complex. The main steps of the process are denoted microwave-only retrieval, cloud detection and cloud clearing, regression, full retrieval, and rapid transmittance algorithm.

  7. Special Feature: Teaching about High Tech.

    ERIC Educational Resources Information Center

    Kopf, Michael; And Others

    1992-01-01

    Includes four articles: "Virtual Reality" (Kopf), description of its uses in computer-assisted design, architecture, and technical training; "SME (Society of Manufacturing Engineers) Robotics Contest Opens Doors to Future" (Wagner); "Superconductivity" (Canady), description of classroom demonstrations and experiments;…

  8. NASA Tech Briefs, January 2009

    NASA Technical Reports Server (NTRS)

    2009-01-01

    Tech Briefs are short announcements of innovations originating from research and development activities of the National Aeronautics and Space Administration. They emphasize information considered likely to be transferable across industrial, regional, or disciplinary lines and are issued to encourage commercial application. Topics covered include: The Radio Frequency Health Node Wireless Sensor System; Effects of Temperature on Polymer/Carbon Chemical Sensors; Small CO2 Sensors Operate at Lower Temperature; Tele-Supervised Adaptive Ocean Sensor Fleet; Synthesis of Submillimeter Radiation for Spectroscopy; 100-GHz Phase Switch/Mixer Containing a Slot-Line Transition; Generating Ka-Band Signals Using an X-Band Vector Modulator; SiC Optically Modulated Field-Effect Transistor; Submillimeter-Wave Amplifier Module with Integrated Waveguide Transitions; Metrology System for a Large, Somewhat Flexible Telescope; Economical Implementation of a Filter Engine in an FPGA; Improved Joining of Metal Components to Composite Structures; Machined Titanium Heat-Pipe Wick Structure; Gadolinia-Doped Ceria Cathodes for Electrolysis of CO2; Utilizing Ocean Thermal Energy in a Submarine Robot; Fuel-Cell Power Systems Incorporating Mg-Based H2 Generators; Alternative OTEC Scheme for a Submarine Robot; Sensitive, Rapid Detection of Bacterial Spores; Adenosine Monophosphate-Based Detection of Bacterial Spores; Silicon Microleaks for Inlets of Mass Spectrometers; CGH Figure Testing of Aspherical Mirrors in Cold Vacuums; Series-Coupled Pairs of Silica Microresonators; Precise Stabilization of the Optical Frequency of WGMRs; Formation Flying of Components of a Large Space Telescope; Laser Metrology Heterodyne Phase-Locked Loop; Spatial Modulation Improves Performance in CTIS; High-Performance Algorithm for Solving the Diagnosis Problem; Truncation Depth Rule-of-Thumb for Convolutional Codes; Efficient Method for Optimizing Placement of Sensors.

  9. Integrated System for Autonomous Science

    NASA Technical Reports Server (NTRS)

    Chien, Steve; Sherwood, Robert; Tran, Daniel; Cichy, Benjamin; Davies, Ashley; Castano, Rebecca; Rabideau, Gregg; Frye, Stuart; Trout, Bruce; Shulman, Seth; hide

    2006-01-01

    The New Millennium Program Space Technology 6 Project Autonomous Sciencecraft software implements an integrated system for autonomous planning and execution of scientific, engineering, and spacecraft-coordination actions. A prior version of this software was reported in "The TechSat 21 Autonomous Sciencecraft Experiment" (NPO-30784), NASA Tech Briefs, Vol. 28, No. 3 (March 2004), page 33. This software is now in continuous use aboard the Earth Orbiter 1 (EO-1) spacecraft mission and is being adapted for use in the Mars Odyssey and Mars Exploration Rovers missions. This software enables EO-1 to detect and respond to such events of scientific interest as volcanic activity, flooding, and freezing and thawing of water. It uses classification algorithms to analyze imagery onboard to detect changes, including events of scientific interest. Detection of such events triggers acquisition of follow-up imagery. The mission-planning component of the software develops a response plan that accounts for visibility of targets and operational constraints. The plan is then executed under control by a task-execution component of the software that is capable of responding to anomalies.

  10. Improved Ball-and-Socket Docking Mechanism

    NASA Technical Reports Server (NTRS)

    Cloyd, Richard; Bryan, Tom

    2004-01-01

    A proposed docking mechanism would form a ball-and-socket joint in the docked condition. The mechanism could tolerate significant initial misalignment because it would include an alignment cone that would guide the ball into the socket. Like other ball-and-socket joints, the joint would have three rotational degrees of freedom. This docking mechanism would be a successor to the one described in Passive Capture Joint With Three Degrees of Freedom (MFS-31146), NASA Tech Briefs, Vol. 22, No. 7 (July 1998), page 65. It would contain most of the components of the prior mechanism, plus some additional components that would expand its capabilities.

  11. Composite Silica Aerogels Opacified with Titania

    NASA Technical Reports Server (NTRS)

    Paik, Jon-Ah; Sakamoto, Jeffrey; Jones, Steven; Fleurial, Jean-Pierre; DiStefano, Salvador; Nesmith, Bill

    2009-01-01

    A further improvement has been made to reduce the high-temperature thermal conductivities of the aerogel-matrix composite materials described in Improved Silica Aerogel Composite Materials (NPO-44287), NASA Tech Briefs, Vol. 32, No. 9 (September 2008), page 50. Because the contribution of infrared radiation to heat transfer increases sharply with temperature, the effective high-temperature thermal conductivity of a thermal-insulation material can be reduced by opacifying the material to reduce the radiative contribution. Therefore, the essence of the present improvement is to add an opacifying constituent material (specifically, TiO2 powder) to the aerogel-matrix composites.

  12. Fuel-Cell-Powered Vehicle with Hybrid Power Management

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J.

    2010-01-01

    Figure 1 depicts a hybrid electric utility vehicle that is powered by hydrogenburning proton-exchange-membrane (PEM) fuel cells operating in conjunction with a metal hydride hydrogen-storage unit. Unlike conventional hybrid electric vehicles, this vehicle utilizes ultracapacitors, rather than batteries, for storing electric energy. This vehicle is a product of continuing efforts to develop the technological discipline known as hybrid power management (HPM), which is oriented toward integration of diverse electric energy-generating, energy-storing, and energy- consuming devices in optimal configurations. Instances of HPM were reported in five prior NASA Tech Briefs articles, though not explicitly labeled as HPM in the first three articles: "Ultracapacitors Store Energy in a Hybrid Electric Vehicle" (LEW-16876), Vol. 24, No. 4 (April 2000), page 63; "Photovoltaic Power Station With Ultracapacitors for Storage" (LEW- 17177), Vol. 27, No. 8 (August 2003), page 38; "Flasher Powered by Photovoltaic Cells and Ultracapacitors" (LEW-17246), Vol. 27, No. 10 (October 2003), page 37; "Hybrid Power Management" (LEW-17520), Vol. 29, No. 12 (December 2005), page 35; and "Ultracapacitor-Powered Cordless Drill" (LEW-18116-1), Vol. 31, No. 8 (August 2007), page 34. To recapitulate from the cited prior articles: The use of ultracapacitors as energy- storage devices lies at the heart of HPM. An ultracapacitor is an electrochemical energy-storage device, but unlike in a conventional rechargeable electrochemical cell or battery, chemical reactions do not take place during operation. Instead, energy is stored electrostatically at an electrode/electrolyte interface. The capacitance per unit volume of an ultracapacitor is much greater than that of a conventional capacitor because its electrodes have much greater surface area per unit volume and the separation between the electrodes is much smaller.

  13. Dog-Bone Horns for Piezoelectric Ultrasonic/Sonic Actuators

    NASA Technical Reports Server (NTRS)

    Sherrit, Stewart; Bar-Cohen, Yoseph; Chang, Zensheu; Bao, Xiaoqi

    2007-01-01

    A shape reminiscent of a dog bone has been found to be superior to other shapes for mechanical-amplification horns that are components of piezoelectrically driven actuators used in a series of related devices denoted generally as ultrasonic/sonic drill/corers (USDCs). The first of these devices was reported in Ultrasonic/Sonic Drill/Corers With Integrated Sensors (NPO-20856), NASA Tech Briefs, Vol. 25, No. 1 (January 2001), page 38. The dog-bone shape was conceived especially for use in a more recent device in the series, denoted an ultrasonic/ sonic gopher, that was described in Ultrasonic/Sonic Mechanisms for Drilling and Coring (NPO-30291), NASA Tech Briefs, Vol. 27, No. 9 (September 2003), page 65. The figure shows an example of a dog-bone-shaped horn and other components of an ultrasonic gopher. Prerequisite to a meaningful description of this development is an unavoidably lengthy recapitulation of the principle of operation of a USDC and, more specifically, of the ultrasonic/sonic gopher as described previously in NASA Tech Briefs. The ultrasonic actuator includes a stack of piezoelectric rings, the horn, a metal backing, and a bolt that connects the aforementioned parts and provides compressive pre-strain to the piezoelectric stack to prevent breakage of the rings during extension. The stack of piezoelectric rings is excited at the resonance frequency of the overall ultrasonic actuator. Through mechanical amplification by the horn, the displacement in the ultrasonic vibration reaches tens of microns at the tip of the horn. The horn hammers an object that is denoted the free mass because it is free to move longitudinally over a limited distance between hard stops: The free mass bounces back and forth between the ultrasonic horn and a tool bit (a drill bit or a corer). Because the longitudinal speed of the free mass is smaller than the longitudinal speed of vibration of the tip of the horn, contact between the free mass and the horn tip usually occurs at a phase of the vibration favorable to transfer of momentum from the horn to the free mass. Therefore, the free mass picks up momentum and is accelerated back to the tool bit. Upon impact of the free mass on the tool bit, momentum is transferred to the tool bit. The impacts of the free mass on the tool bit repeat at a sonic frequency that can range from tens of hertz to about 1 kHz. The shock waves caused by the impacts of the free mass propagate to the interface between the tool bit and the medium (typically, rock, ice, or other brittle material) to be drilled or cored. The medium becomes fractured when its ultimate strain is exceeded at the medium/tool-bit interface. This concludes the description of the principle of operation.

  14. Insect-Inspired Flight Control for Unmanned Aerial Vehicles

    NASA Technical Reports Server (NTRS)

    Thakoor, Sarita; Stange, G.; Srinivasan, M.; Chahl, Javaan; Hine, Butler; Zornetzer, Steven

    2005-01-01

    Flight-control and navigation systems inspired by the structure and function of the visual system and brain of insects have been proposed for a class of developmental miniature robotic aircraft called "biomorphic flyers" described earlier in "Development of Biomorphic Flyers" (NPO-30554), NASA Tech Briefs, Vol. 28, No. 11 (November 2004), page 54. These form a subset of biomorphic explorers, which, as reported in several articles in past issues of NASA Tech Briefs ["Biomorphic Explorers" (NPO-20142), Vol. 22, No. 9 (September 1998), page 71; "Bio-Inspired Engineering of Exploration Systems" (NPO-21142), Vol. 27, No. 5 (May 2003), page 54; and "Cooperative Lander-Surface/Aerial Microflyer Missions for Mars Exploration" (NPO-30286), Vol. 28, No. 5 (May 2004), page 36], are proposed small robots, equipped with microsensors and communication systems, that would incorporate crucial functions of mobility, adaptability, and even cooperative behavior. These functions are inherent to biological organisms but are challenging frontiers for technical systems. Biomorphic flyers could be used on Earth or remote planets to explore otherwise difficult or impossible to reach sites. An example of an exploratory task of search/surveillance functions currently being tested is to obtain high-resolution aerial imagery, using a variety of miniaturized electronic cameras. The control functions to be implemented by the systems in development include holding altitude, avoiding hazards, following terrain, navigation by reference to recognizable terrain features, stabilization of flight, and smooth landing. Flying insects perform these and other functions remarkably well, even though insect brains contains fewer than 10(exp -4) as many neurons as does the human brain. Although most insects have immobile, fixed-focus eyes and lack stereoscopy (and hence cannot perceive depth directly), they utilize a number of ingenious strategies for perceiving, and navigating in, three dimensions. Despite their lack of stereoscopy, insects infer distances to potential obstacles and other objects from image motion cues that result from their own motions in the environment. The concept of motion of texture in images as a source of motion cues is denoted generally as the concept of optic or optical flow. Computationally, a strategy based on optical flow is simpler than is stereoscopy for avoiding hazards and following terrain. Hence, this strategy offers the potential to design vision-based control computing subsystems that would be more compact, would weigh less, and would demand less power than would subsystems of equivalent capability based on a conventional stereoscopic approach.

  15. Bio-Inspired Engineering of Exploration Systems

    NASA Technical Reports Server (NTRS)

    Thakoor, Sanita

    2003-01-01

    The multidisciplinary concept of "bioinspired engineering of exploration systems" (BEES) is described, which is a guiding principle of the continuing effort to develop biomorphic explorers as reported in a number of articles in the past issues of NASA Tech Briefs. The intent of BEES is to distill from the principles found in successful nature-tested mechanisms of specific crucial functions that are hard to accomplish by conventional methods but that are accomplished rather deftly in nature by biological organisms. The intent is not just to mimic operational mechanisms found in a specific biological organism but to imbibe the salient principles from a variety of diverse bio-organisms for the desired crucial function. Thereby, we can build explorer systems that have specific capabilities endowed beyond nature, as they will possess a combination of the best nature-tested mechanisms for that particular function. The approach consists of selecting a crucial function, for example, flight or some selected aspects of flight, and develop an explorer that combines the principles of those specific attributes as seen in diverse flying species into one artificial entity. This will allow going beyond biology and achieving unprecedented capability and adaptability needed in encountering and exploring what is as yet unknown. A classification of biomorphic flyers into two main classes of surface and aerial explorers is illustrated in the figure, with examples of a variety of biological organisms that provide the inspiration in each respective subclass. Such biomorphic explorers may possess varied mobility modes: surface-roving, burrowing, hopping, hovering, or flying, to accomplish surface, subsurface, and aerial exploration. Preprogrammed for a specific function, they could serve as one-way communicating beacons, spread over the exploration site, autonomously looking for/at the targets of interest. In a hierarchical organization, these biomorphic explorers would report to the next level of exploration mode (say, a large conventional lander/rover) in the vicinity. A widespread and affordable exploration of new/hazardous sites at lower cost and risk would thus become possible by utilizing a faster aerial flyer to cover long ranges and deploying a variety of function- specific, smaller biomorphic explorers for distributed sensing and local sample acquisition. Several conceptual biomorphic missions for planetary and terrestrial exploration applications have been illustrated in "Surface-Launched Explorers for Reconnaissance/ Scouting" (NPO-20871), NASA Tech Briefs, Vol. 26, No. 4 (April, 2002), page 69 and "Bio-Inspired Engineering of Exploration Systems," Journal of Space Mission Architecture, Issue 2, Fall 2000, pages 49-79.

  16. College Leaders Wrestle with How to Prepare for Unknown Threats

    ERIC Educational Resources Information Center

    Selingo, Jeffrey

    2008-01-01

    This article describes how colleges are seeking the best ways to respond to dangerous incidents like the shootings that occurred at Virginia Tech, and how best to alert people on their campuses to various threats to public safety and emergencies.

  17. Crosscutting Technology Development at the Center for Advanced Separation Technologies

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Christopher Hull

    2009-10-31

    The U.S. is the largest producer of mining products in the world. In 2003, U.S. mining operations produced $57 billion worth of raw materials that contributed a total of $564 billion to the nation's wealth. Despite these contributions, the mining industry has not been well supported with research and development funds as compared to mining industries in other countries. To overcome this problem, the Center for Advanced Separation Technologies (CAST) was established to develop technologies that can be used by the U.S. mining industry to create new products, reduce production costs, and meet environmental regulations. Originally set up by Virginiamore » Tech and West Virginia University, this endeavor has been expanded into a seven-university consortium -- Virginia Tech, West Virginia University, University of Kentucky, University of Utah, Montana Tech, New Mexico Tech and University of Nevada, Reno - that is supported through U.S. DOE Cooperative Agreement No. DE-FC26-02NT41607: Crosscutting Technology Development at the Center for Advanced Separation Technologies. Much of the research to be conducted with Cooperative Agreement funds will be longer-term, high-risk, basic research and will be carried out in five broad areas: (1) Solid-solid separation; (2) Solid-liquid separation; (3) Chemical/biological extraction; (4) Modeling and control; and (5) Environmental control. Distribution of funds is handled via competitive solicitation of research proposals through Site Coordinators at the seven member universities. These were first reviewed and ranked by a group of technical reviewers (selected primarily from industry). Based on these reviews, and an assessment of overall program requirements, the CAST Technical Committee made an initial selection/ranking of proposals and forwarded these to the DOE/NETL Project Officer for final review and approval. The successful projects are listed by category, along with brief abstracts of their aims and objectives.« less

  18. CSUN's Conference Advances Opportunities for People with Disabilities

    ERIC Educational Resources Information Center

    Williams, John M.

    2006-01-01

    This article reports the highlights of the recently concluded Annual International Technology and Persons with Disabilities Conference organized by California State University at Northridge. Attendees from more than 30 countries learned about services provided by the Social Security Administration, GeorgiaTech (CATEA), NISH, Computer/Electronic…

  19. TECHcitement: Advances in Technology Education, 2008

    ERIC Educational Resources Information Center

    Patton, Madeline

    2008-01-01

    This publication presents the following articles: (1) Advanced Technological Education (ATE) Develops Student Recruitment and Retention Strategies; (2) Marketer Advises Tech Educators Appeal to Teens' Emotions, Desires to Do Something Important; (3) Digital Bridge Academy Gets At-Risk Students on Paths to Knowledge-Based Careers; (4) Project…

  20. A Safe, Self-Calibrating, Wireless System for Measuring Volume of Any Fuel at Non-Horizontal Orientation

    NASA Technical Reports Server (NTRS)

    Woodward, Stanley E.; Taylor, Bryant D.

    2010-01-01

    A system for wirelessly measuring the volume of fluid in tanks at non-horizontal orientation is predicated upon two technologies developed at Langley Research Center. The first is a magnetic field response recorder that powers and interrogates magnetic field response sensors [ Magnetic Field Response Measurement Acquisition System, (LAR-16908), NASA Tech Briefs, Vol. 30, No. 6 (June 2006), page 28]. Magnetic field response sensors are a class of sensors that are powered via oscillating magnetic fields and when electrically active respond with their own magnetic fields whose attributes are dependent upon the magnitude of the physical quantity being measured. The response recorder facilitates the use of the second technology, which is a magnetic field response fluid-level sensor ["Wireless Fluid- Level Sensors for Harsh Environments," (LAR-17155), NASA Tech Briefs, Vol. 33, No. 4 (April 2009), page 30]. The method for powering and interrogating the sensors allows them to be completely encased in materials (Fig. 1) that are chemically resilient to the fluid being measured, thereby facilitating measurement of substances (e.g., acids, petroleum, cryogenic, caustic, and the like) that would normally destroy electronic circuitry. When the sensors are encapsulated, no fluid (or fluid vapor) is exposed to any electrical component of the measurement system. There is no direct electrical line from the vehicle or plant power into a fuel container. The means of interrogating and powering the sensors can be completely physically and electrically isolated from the fuel and vapors by placing the sensor on the other side of an electrically non-conductive bulkhead (Fig. 2). These features prevent the interrogation system and its electrical components from becoming an ignition source.

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