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  • STRUCTURAL MECHANICS  (4)
  • Heritability  (2)
  • Plasma and Beam Physics
  • 1990-1994  (6)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Quantitative analysis of correlations among flower traits in Gerbera hybrida Compositae (1990)
    Springer
    Theoretical and applied genetics 80 (1990), S. 552-558 
    Details
    ISSN: 1432-2242
    Keywords: Genetic correlation ; Heritability ; Hidden genetic correlation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Phenotypic (r p ), genetic (r g ), and environmental, (r e ) correlations were estimated for 38 flower traits in the Davis population of gerbera (Gerbera hybrida, Compositae). Fifty-two percent of r p and 38% of r g were statistically significant at P 〈 0.05. Significant negative r p were infrequent, but significant negative r g occurred in 10% of cases. There was a negative correlation between estimates of r g and r e , resulting in cases where r g was significant, but r p was not. Individual traits varied in their tendency to correlate phenotypically or genetically, and positively or negatively, with other traits. Traits within the same morphological category, such as disk florets or transitional florets, were more highly intercorrelated than were traits from different categories.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226759
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Maternal, paternal, additive, and dominance components of variance in Gerbera (1991)
    Springer
    Theoretical and applied genetics 82 (1991), S. 756-760 
    Details
    ISSN: 1432-2242
    Keywords: Heritability ; Extranuclear ; Inheritance ; Reciprocal ; Covariance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Estimates of additive, dominance, maternal, and paternal components of variance were obtained for a sample of 18 traits, including measurements of yield, scapes, flowers, disk, ray and trans florets, leaves, and branching in the Davis population of Gerbera hybrida. The results, based on the covariance of reciprocals, indicate that although heritability averaged 0.52, extranuclear maternal or paternal effects are not important sources of variability. Therefore, reciprocal differences do not seriously affect estimates of additive variance or heritability in this population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00227321
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    Paper (German National Licenses)
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  • 3
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    Unknown
    Coupled structural/thermal/electromagnetic analysis/tailoring of graded composite structures (1992)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Described here are the accomplishments of a 5-year program to develop a methodology for coupled structural, thermal, electromagnetic analysis tailoring of graded component structures. The capabilities developed over the course of the program are the analyzer module and the tailoring module for the modeling of graded materials. Highlighted accomplishments for the past year include the addition of a buckling analysis capability, the addition of mode shape slope calculation for flutter analysis, verification of the analysis modules using simulated components, and verification of the tailoring module.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-189153 , NAS 1.26:189153
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    Coupled structural/thermal/electromagnetic analysis/tailoring of graded composite structures (1992)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Accomplishments are described for the fourth years effort of a 5-year program to develop a methodology for coupled structural/thermal/electromagnetic analysis/tailoring of graded component structures. These accomplishments include: (1) demonstration of coupled solution capability; (2) alternate CSTEM electromagnetic technology; (3) CSTEM acoustic capability; (4) CSTEM tailoring; (5) CSTEM composite micromechanics using ICAN; and (6) multiple layer elements in CSTEM.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-189152 , NAS 1.26:189152
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    Coupled structural/thermal/electromagnetic analysis/tailoring of graded composite structures (1992)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Accomplishments are described for the third years effort of a 5-year program to develop a methodology for coupled structural/thermal/electromagnetic analysis/tailoring of graded composite structures. These accomplishments include: (1) structural analysis capability specialized for graded composite structures including large deformation and deformation position eigenanalysis technologies; (2) a thermal analyzer specialized for graded composite structures; (3) absorption of electromagnetic waves by graded composite structures; and (4) coupled structural thermal/electromagnetic analysis of graded composite structures.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-189151 , NAS 1.26:189151
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
    facet.materialart.
    Unknown
    Coupled structural/thermal/electromagnetic analysis/tailoring of graded composite structures (1992)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Accomplishments are described for the first year effort of a 5-year program to develop a methodology for coupled structural/thermal/electromagnetic analysis/tailoring of graded composite structures. These accomplishments include: (1) the results of the selective literature survey; (2) 8-, 16-, and 20-noded isoparametric plate and shell elements; (3) large deformation structural analysis; (4) eigenanalysis; (5) anisotropic heat transfer analysis; and (6) anisotropic electromagnetic analysis.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-189150 , NAS 1.26:189150
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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