7 research outputs found

    Large space structures and systems in the space station era: A bibliography with indexes

    Get PDF
    Bibliographies and abstracts are listed for 1372 reports, articles, and other documents introduced into the NASA scientific and technical information system between January 1, 1990 and June 30, 1990. Its purpose is to provide helpful information to the researcher, manager, and designer in technology development and mission design according to system, interactive analysis and design, structural and thermal analysis and design, structural concepts and control systems, electronics, advanced materials, assembly concepts, propulsion, and solar power satellite systems

    Compressive-Sensing-Based Reflectometer for Sparse-Fault Detection in Elevator Belts

    No full text
    This article presents a design approach to the early detection of elevator-belt failures. The proposed system is based on the time-domain reflectometer (TDR) techniques with the objective to detect the presence and location of faults along the cables. The proposed detection circuit, which measures the cable impedance variations, presents the spatial location of the fault as the main technical challenge due to the requirement of very high time-resolution. In order to reduce the electronics costs of each individual node installed in a monitoring distributed system, this article proposes to improve the location capabilities by implementing a compressive-sensing (CS)-based receiver. Using CS allows us to reduce the number of samples to be sent to a central processor to implement the recovery process of the time-domain sparse signal and still using a low-cost data-acquisition system connected to each monitored elevator

    Remote Sensing of Earth Resources: A literature survey with indexes (1970 - 1973 supplement). Section 1: Abstracts

    Get PDF
    Abstracts of reports, articles, and other documents introduced into the NASA scientific and technical information system between March 1970 and December 1973 are presented in the following areas: agriculture and forestry, environmental changes and cultural resources, geodesy and cartography, geology and mineral resources, oceanography and marine resources, hydrology and water management, data processing and distribution systems, instrumentation and sensors, and economic analysis

    Space station systems: A bibliography with indexes

    Get PDF
    This bibliography lists 967 reports, articles, and other documents introduced into the NASA scientific and technical information system between January 1, 1987 and June 30, 1987. Its purpose is to provide helpful information to the researcher, manager, and designer in technology development and mission design according to system, interactive analysis and design, structural and thermal analysis and design, structural concepts and control systems, electronics, advanced materials, assembly concepts, propulsion, and solar power satellite systems. The coverage includes documents that define major systems and subsystems, servicing and support requirements, procedures and operations, and missions for the current and future space station

    ITER Technical Basis

    Get PDF
    The Agency is part of its support for the joint venture known as the International Thermonuclear Experimental Reactor (ITER)

    Bibliography of Lewis Research Center technical publications announced in 1989

    Get PDF
    This compilation of abstracts describes and indexes the technical reporting that resulted from the scientific and engineering work performed and managed by the Lewis Research Center in 1989. All the publications were announced in the 1989 issues of STAR (Scientific and Technical Aerospace Reports) and/or IAA (International Aerospace Abstracts). Included are research reports, journal articles, conference presentations, patents and patent applications, and theses

    Bibliography of Lewis Research Center Technical Publications announced in 1991

    Get PDF
    This compilation of abstracts describes and indexes the technical reporting that resulted from the scientific engineering work performed and managed by the Lewis Research Center in 1991. All the publications were announced in the 1991 issues of STAR (Scientific and Technical Aerospace Reports) and/or IAA (International Aerospace Abstracts). Included are research reports, journal articles, conference presentations, patents and patent applications, and theses
    corecore