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  • 1
    Electronic Resource
    Electronic Resource
    Post-depositional stability of long-chain alkenones under contrasting redox conditions (1989)
    [s.l.] : Nature Publishing Group
    Nature 341 (1989), S. 434-437 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sediment cores from the Madeira Abyssal Plain (MAP), located in the north-east Atlantic Ocean, are characterized by a periodic sequence of thick (l-4m) distal turbidites interbed-ded by thin (3-15 cm) pelagites10'12. The main source of these organic-rich turbidite materials is the continental ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/341434a0
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    Paper (German National Licenses)
    Fulltext
  • 2
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    DNA-damage-inducible (din) loci are transcriptionally activated in competent Bacillus subtilis. (1985)
    National Academy of Sciences
    Details
    Publication Date: 1985-09-01
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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    PAPER CURRENT
  • 3
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    An organic geochemical assessment of oceanographic conditions at Manop Site C over the past 26,000 years (1989)
    American Geophysical Union
    Details
    Publication Date: 1989-10-01
    Print ISSN: 2572-4517
    Electronic ISSN: 2572-4525
    Topics: Geosciences
    Published by American Geophysical Union
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    PAPER CURRENT
  • 4
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    Post-depositional stability of long-chain alkenones under contrasting redox conditions (1989)
    Springer Nature
    Details
    Publication Date: 1989-10-01
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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    PAPER CURRENT
  • 5
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    Flight experiments in telerobotics-Orbiter middeck concept (1989)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Most uncertainties of operation of a telerobot in the space environment relate to the absence of gravity effects and not to the vacuum effects. A flight experiment concept is proposed for the middeck of the space shuttle that provides direct access for the crew. Telerobot dextrous manipulation issues in task performance, mechanism response, system duty cycles, and operator interface can be effectively addressed. A pair of replica-type master controllers would be adapted for slave manipulator functions. A variety of test setups and control modes can obtain data on zero G operation of a telerobot.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: JPL, California Inst. of Tech., Proceedings of the NASA Conference on Space Telerobotics, Volume 5; p 207-213
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Telerobot for space station (1987)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The Flight Telerobotic Servicer (FTS), a multiple arm dexterous manipulation system, will aid in the assembly, maintenance, and servicing of the space station. Fundamental ideas and basic conceptual designs for a shuttle-based telerobot system have been produced. Recent space station studies provide additional concepts that should aid in the accomplishment of mission requirements. Currently, the FTS is in contractual source selection for a Phase B preliminary design. At the same time, design requirements are being developed through a series of robotic assessment tasks being performed at NASA and commercial installations. A number of the requirements for remote operation on the space station, necessary to supplement extravehicular activity (EVA), will be met by the FTS. Finally, technology developed for telerobotics will advance the state of the art of remote operating systems, enhance operator productivity, and prove instrumental in the evolution of an adaptive, intelligent autonomous robot.
    Keywords: MECHANICAL ENGINEERING
    Type: First Annual Workshop on Space Operations Automation and Robotics (SOAR 87); p 497-499
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Telerobotic work system: Concept development and evolution (1987)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The basic concept of a telerobotic work system (TWS) consists of two dexterous manipulator arms controlled from a remote station. The term telerobotic describes a system that is a combination of teleoperator control and robotic operation. Work represents the function of producing physical changes. System describes the integration of components and subsystems to effectively accomplish the needed mission. Telerobotics reduces exposure to hazards for flight crewmembers and increases their productivity. The requirements for the TWS are derived from both the mission needs and the functional capabilities of existing hardware and software to meet those needs. The development of the TWS is discussed.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: The 21st Aerospace Mechanisms Symposium; p 103-110
    Format: application/pdf
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  • 8
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    System architecture for the telerobotic work system (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The functional and performance requirements and design concepts for a telerobotic work system (TWS) being considered as an adjunct to the Shuttle Remote Manipulator System and other applications are described. The multiple-armed free-flyer would be controlled by an operator in the Orbiter cabin and would perform remote sensing and manipulative tasks that EVA crew otherwise carry out. The TWS could also perform hazardous tasks, construction operations, and be an asset to the Space Station. Alternative system architectures are described, including the man-machine interface, the types of manipulators and their stowage, and the controls and backup systems. Potential terrestrial applications of the TWS concept, augmented with AI capabilities, are discussed.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: AAS PAPER 86-044
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Demonstrating system for servicing satellites (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: NASA has initiated a program to demonstrate a Satellite Servicer System prototype in a series of flight tests with the Space Shuttle. When the commitment to an operational system has been demonstrated, it is anticipated that a variety of missions will develop that can productively use the servicing capability. Rendezvous and proximity operations contain key enabling technologies needed for an effective operational system. Guidance, navigation and control hardware and operational techniques must be integrated into the program. Supporting sensor technology may limit or enhance the capability of the system depending on its readiness. Requirements for docking the spacecraft in the system concept development and technology requirements are reviewed. Examples of the initial assessment of technology readiness and applications opportunities are discussed. The degree of autonomy is of particular interest.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: AAS PAPER 89-043 , Annual Rocky Mountain Guidance and Control Conference; Feb 04, 1989 - Feb 08, 1989; Keystone, CO; United States
    Format: text
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  • 10
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    Construction of large space power facilities (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Construction was an important facet of the Satellite Power System studies in the late 1970s. Satellite servicing and assembly of the Space Station Freedom are addressing many of the critical issues in construction of large space systems. Design for assembly, capability of construction equipment and interaction with the launch system influence configuration development. The extravehicular capabilities of space-suited crew and remote operating systems like the Flight Telerobotic Servicer will provide an operational experience base for development of future large space power facilities. Economics success may well depend on early consideration of construction requirements and capabilities.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: IAF PAPER ICOSP89-12-2 , Space Power (ISSN 0951-5089); 8; 3 19
    Format: text
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    NASA TECHNICAL REPORTS
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