ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Studies of molecular properties of polymeric materials (1990)
    In:  CASI
    Details
    Publication Date: 2019-07-20
    Description: Aerospace environment effects (high energy electrons, thermal cycling, atomic oxygen, and aircraft fluids) on polymeric and composite materials considered for structural use in spacecraft and advanced aircraft are examined. These materials include Mylar, Ultem, and Kapton. In addition to providing information on the behavior of the materials, attempts are made to relate the measurements to the molecular processes occurring in the material. A summary and overview of the technical aspects are given along with a list of the papers that resulted from the studies. The actual papers are included in the appendices and a glossary of technical terms and definitions is included in the front matter.
    Keywords: NONMETALLIC MATERIALS
    Type: NASA-TM-101854 , NAS 1.15:101854 , PTR-90-3
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    Effects Of Irradiation By Electrons On Two Polyimides (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Polyimides of new class, known as polyetherimides, used for composites and castings. Study undertaken to compare effects of electron radiation, in doses expected for 30-year missions in geosynchronous orbit, on molecular structures and tensile properties of two commercially available polyimides: polypyromellitimide and polyetherimide. Findings helpful in development of new polymers that endure radiation, leading to synthesis of polymers not having methyl groups or other moieties that are sources of hydrogen, inhibiting self-mending. Significance of study for polymer industry relating to structures in outer space considerable.
    Keywords: MATERIALS
    Type: LAR-14309 , NASA Tech Briefs (ISSN 0145-319X); 16; 10; P. 72
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unknown
    High-speed dynamic domino circuit implemented with gaas mesfets (1990)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A dynamic logic circuit (AND or OR) utilizes one depletion-mode metal-semiconductor FET for precharging an internal node A, and a plurality of the same type of FETs in series, or a FET in parallel with one or more of the series connected FETs for implementing the logic function. A pair of FETs are connected to provide an output inverter with two series diodes for level shift. A coupling capacitor may be employed with a further FET to provide level shifting required between the inverter and the logic circuit output terminal. These circuits may be cascaded to form a domino chain.
    Keywords: Electronics and Electrical Engineering
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    Gallium Arsenide Domino Circuit (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Advantages include reduced power and high speed. Experimental gallium arsenide field-effect-transistor (FET) domino circuit replicated in large numbers for use in dynamic-logic systems. Name of circuit denotes mode of operation, which logic signals propagate from each stage to next when successive stages operated at slightly staggered clock cycles, in manner reminiscent of dominoes falling in a row. Building block of domino circuit includes input, inverter, and level-shifting substages. Combinational logic executed in input substage. During low half of clock cycle, result of logic operation transmitted to following stage.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: NPO-17417 , NASA Tech Briefs (ISSN 0145-319X); 14; 3; P. 36
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    Tomographic inversion of Rg wave group velocities for regional near-surface velocity structure (1993)
    In:  J. Geophys. Res., New York, Conseil de l'Europe, vol. 98, no. B4, pp. 6579-6588, pp. B07307, (ISSN: 1340-4202)
    Details
    Publication Date: 1993
    Keywords: Velocity depth profile ; Tomography ; Inversion ; Rayleigh waves ; 5460 ; Planetary ; Sciences: ; Physical ; properties ; of ; materials ; 5470 ; Planetary ; Sciences: ; Surface ; materials ; and ; properties ; 8494 ; Volcanology: ; Instruments ; and ; techniques ; Kocaoglu ; JGR
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 6
    facet.materialart.
    Unknown
    A preliminary study on the 1786 Kangding earthquake deformation characteristics (1990)
    In:  J. Seism. Res., Kunming, China, 4, vol. 13, no. 1763, pp. 51-60, pp. L13613, (ISSN: 1340-4202)
    Details
    Publication Date: 1990
    Keywords: Earthquake ; Earthquake precursor: deformation or strain ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; China ; JSR
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 7
    facet.materialart.
    Unknown
    Crustal deformation in the southern Longitudinal Valley area, eastern Taiwan (1992)
    In:  J. Geol. Soc. China, Taipei, Academia Sinica, vol. 35, no. 1-3, pp. 219-230, pp. L13610, (ISSN: 1340-4202)
    Details
    Publication Date: 1992
    Keywords: Crustal deformation (cf. Earthquake precursor: deformation or strain) ; China
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 8
    facet.materialart.
    Unknown
    Space-time correlations of b-values with stress release (1992)
    In:  Pageoph, Luxembourg, Conseil de l'Europe, vol. 139, no. 6, pp. 449-462, pp. 1068, (ISSN: 1340-4202)
    Details
    Publication Date: 1992
    Keywords: Seismicity ; Stress ; Stress drop ; Statistical investigations
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 9
    facet.materialart.
    Unknown
    LONGLIB - A GRAPHICS LIBRARY (1994)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: This library is a set of subroutines designed for vector plotting to CRT's, plotters, dot matrix, and laser printers. LONGLIB subroutines are invoked by program calls similar to standard CALCOMP routines. In addition to the basic plotting routines, LONGLIB contains an extensive set of routines to allow viewport clipping, extended character sets, graphic input, shading, polar plots, and 3-D plotting with or without hidden line removal. LONGLIB capabilities include surface plots, contours, histograms, logarithm axes, world maps, and seismic plots. LONGLIB includes master subroutines, which are self-contained series of commonly used individual subroutines. When invoked, the master routine will initialize the plotting package, and will plot multiple curves, scatter plots, log plots, 3-D plots, etc. and then close the plot package, all with a single call. Supported devices include VT100 equipped with Selanar GR100 or GR100+ boards, VT125s, VT240s, VT220 equipped with Selanar SG220, Tektronix 4010/4014 or 4107/4109 and compatibles, and Graphon GO-235 terminals. Dot matrix printer output is available by using the provided raster scan conversion routines for DEC LA50, Printronix printers, and high or low resolution Trilog printers. Other output devices include QMS laser printers, Postscript compatible laser printers, and HPGL compatible plotters. The LONGLIB package includes the graphics library source code, an on-line help library, scan converter and meta file conversion programs, and command files for installing, creating, and testing the library. The latest version, 5.0, is significantly enhanced and has been made more portable. Also, the new version's meta file format has been changed and is incompatible with previous versions. A conversion utility is included to port the old meta files to the new format. Color terminal plotting has been incorporated. LONGLIB is written in FORTRAN 77 for batch or interactive execution and has been implemented on a DEC VAX series computer operating under VMS. This program was developed in 1985, and last updated in 1988.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NPO-17443
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unknown
    Emergency medical operations at Kennedy Space Center in support of space shuttle (1992)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: The unique environment of the Kennedy Space Center includes a wide variety of industrial processes culminating in launch and spaceflight. Many are potentially hazardous to the work force and the astronauts. Technology, planning, training, and quality control are utilized to prevent contingencies and expedite response should a contingency occur.
    Keywords: AEROSPACE MEDICINE
    Type: Florida Medical Association, Journal (ISSN 0015-4148); 79; 8; p. 557-561.
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...