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  • 1
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    Energy recovery from solid waste (1974)
    In:  CASI
    Details
    Publication Date: 2006-05-07
    Description: A recent group study on the problem of solid waste disposal provided a decision making model for a community to use in determining the future for its solid waste. The model is a combination of the following factors: technology, legal, social, political, economic and environmental. An assessment of local or community needs determines what form of energy recovery is desirable. A market for low pressure steam or hot water would direct a community to recover energy from solid waste by incineration to generate steam. A fuel gas could be produced by a process known as pyrolysis if there is a local market for a low heating value gaseous fuel. Solid waste can also be used directly as a fuel supplemental to coal in a steam generator. An evaluation of these various processes is made.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Chamber of Commerce Proc. of the 1st 1974 Technol. Transfer Conf.; p 121-132
    Format: text
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  • 2
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    A proposed generalized constitutive equation for nonlinear para-isotropic materials (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Finite element models of varying complexities were used to solve problems in solid mechanics. Particular emphasis was given to concrete which is nonisotropic at any level of deformation and is also nonlinear in terms of stress-strain relationships.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA. Langley Research Center Res. in Nonlinear Struct. and Solid Mech.; p 187-196
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  • 3
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    The 1981 NASA ASEE Summer Faculty Fellowship Program, volume 2 (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A collection of papers on miscellaneous subjects in aerospace research is presented. Topics discussed are: (1) Langmuir probe theory and the problem of anisotropic collection; (2) anthropometric program analysis of reach and body movement; (3) analysis of IV characteristics of negatively biased panels in a magnetoplasma; (4) analytic solution to classical two body drag problem; (5) fast variable step size integration algorithm for computer simulations of physiological systems; (6) spectroscopic experimental computer assisted empirical model for the production of energetics of excited oxygen molecules formed by atom recombination shuttle tile surfaces; and (7) capillary priming characteristics of dual passage heat pipe in zero-g.
    Keywords: GENERAL
    Type: NASA-CR-168776 , NAS 1.26:168776
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  • 4
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    The 1981 NASA ASEE Summer Faculty Fellowship Program, volume 1 (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A review of NASA research programs related to developing and improving space flight technology is presented. Technical report topics summarized include: space flight feeding; aerospace medicine; reusable spacecraft; satellite soil, vegetation, and climate studies; microwave landing systems; anthropometric studies; satellite antennas; and space shuttle fuel cells.
    Keywords: GENERAL
    Type: NASA-CR-168775 , NAS 1.26:168775
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  • 5
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    Applications of hybrid and digital computation methods in aerospace-related sciences and engineering (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The computing equipment in the engineering systems simulation laboratory of the Houston University Cullen College of Engineering is described and its advantages are summarized. The application of computer techniques in aerospace-related research psychology and in chemical, civil, electrical, industrial, and mechanical engineering is described in abstracts of 84 individual projects and in reprints of published reports. Research supports programs in acoustics, energy technology, systems engineering, and environment management as well as aerospace engineering.
    Keywords: NUMERICAL ANALYSIS
    Type: NASA-CR-157364
    Format: application/pdf
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  • 6
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    On identifying transfer functions and state equations for linear systems. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Two methods are established for identifying constant-coefficient, C to the 2n power type of noise-free linear systems if the time response data of the input-output or of all states are known. 2n response data are required to identify an nth-order transfer function or state equation for an unknown linear system. The order of the unknown system can be identified by checking a sequence of determinants. The Z transform and its inversion are mainly used.
    Keywords: ELECTRONICS
    Type: IEEE Transactions on Aerospace and Electronic Systems; AES-8; Nov. 197
    Format: text
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  • 7
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    Cargo transportation by airships: A systems study (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A systems engineering study of a lighter than air airship transportation system was conducted. The feasibility of the use of airships in hauling cargo was demonstrated. Social, legal, environmental and political factors were considered as well as the technical factors necessary to design an effective airship transportation system. In order to accomplish an effective airship transportation program two phases of implementation were recommended. Phase I would involve a fleet of rigid airships of 3.5 million cubic feet displacement capable of carrying 25 tons of cargo internal to the helium-filled gas bag. The Phase I fleet would demonstrate the economic and technical feasibility of modern-day airships while providing a training capability for the construction and operation of larger airships. The Phase II portion would be a fleet of rigid airships of 12 million cubic feet displacement capable of carrying a cargo of 100 tons a distance of 2,000 miles at a cruising speed of 60 mph. An economic analysis is given for a variety of missions for both Phase I and Phase II airships.
    Keywords: AERONAUTICS (GENERAL)
    Type: NASA-CR-2636 , S-452 , JSC-10655
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  • 8
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    LLV - Lunar Logistic Vehicle Final report (1969)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Evaluation of systems design training institute for engineering faculty
    Keywords: SPACE VEHICLES
    Type: NASA-CR-107445
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  • 9
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    Energy recovery from solid waste. Volume 2: Technical report (1975)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A systems analysis of energy recovery from solid waste demonstrates the feasibility of several current processes for converting solid waste to an energy form. The social, legal, environmental, and political factors are considered in depth with recommendations made in regard to new legislation and policy. Biodegradation and thermal decomposition are the two areas of disposal that are considered with emphasis on thermal decomposition. A technical and economic evaluation of a number of available and developing energy-recovery processes is given. Based on present technical capabilities, use of prepared solid waste as a fuel supplemental to coal seems to be the most economic process by which to recover energy from solid waste. Markets are considered in detail with suggestions given for improving market conditions and for developing market stability. A decision procedure is given to aid a community in deciding on its options in dealing with solid waste, and a new pyrolysis process is suggested. An application of the methods of this study are applied to Houston, Texas.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-2526 , S-443-VOL-2
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  • 10
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    System design of a near-self-supporting lunar colony. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Concepts for expanding a 12-man lunar surface base to a more permanent colony of about 180 persons are studied. Guidelines for the colony design are that the colony must perform a useful function, and that design should maximize use of lunar materials and minimize requirements of resupply from the earth. The first use of lunar materials should be for oxygen production, to achieve which large electrical or thermal power inputs are necessary. Some of the efforts which should be directed toward food and plant growth are considered, and those factors from life support and waste control which bear further study are examined. Aspects of power generation, mining, and construction are discussed.
    Keywords: FACILITIES, RESEARCH, AND SUPPORT
    Type: International Astronautical Federation, International Astronautical Congress; Oct 08, 1972 - Oct 15, 1972; Vienna; Austria
    Format: text
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