Results 221 to 230 of about 369,849 (272)

Effect of absolute dimensions on fatigue crack growth rate in notched cylindrical specimen

Strength of Materials, 1980
1. There are three stages in the growth of a fatigue crack in a cylindrical specimen with a sharp annular notch: delayed, stable, and accelerated crack growth. At all stages, crack growth rate is higher, the larger the diameter of the specimens. 2.
V. S. Zoteev
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Absolute Correlation between Lag Time and Growth Rate in the Spontaneous Formation of Several Amyloid-like Aggregates and Fibrils

Journal of Molecular Biology, 2007
The formation of polypeptide aggregates, including amyloid fibrils and prions, is a biochemical process of considerable interest in the context of its association with ageing and neurodegeneration. Aggregation occurs typically with a lag phase and a growth phase that reflect an underlying nucleation-polymerisation mechanism.
Marcus Fändrich
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Short eruption window revealed by absolute crystal growth rates in a granitic magma

Nature Geoscience, 2014
Giant volcanic eruptions occur when large volumes of magma accumulate in crustal reservoirs and do not cool and crystallize to form a solid pluton of rock within the crust. Geochronological dating of a pluton from Elba, Italy, shows that the magma solidified in the crust within just 10–40 thousand years of being injected into the crust, implying that ...
Barboni Melanie, Schoene Blair
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Kinetics of spiral growth of calcite crystals and determination of the absolute rate constant

Journal of Crystal Growth, 1990
Abstract Seeded growth experiments with calcite crystals at constant values of pH, together with reinterpretation of literature data for growth of calcite show that the kinetics can be explained in terms of a spiral growth mechanism, in which the density of kinks depends on the supersaturation and in which the rate constant can be interpreted in ...
Jørgen Christoffersen, Margaret R. Christoffersen   +1 more
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Effect of collisional damping on the threshold and growth rate of absolute two-plasmon decay instability in laser-produced plasmas

Plasma Physics and Controlled Fusion, 1991
The threshold and growth rate of absolute two-plasmon decay instability in a laser-produced plasma, using the fluid theory, for a normally incident laser light, are reported. By taking into account the collisional damping of electron plasma waves and considering a perturbation to the Schrodinger potential, results on the minimum threshold conditions ...
G P Gupta, B K Sinha
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Genetic analysis of absolute growth measurements, relative growth rate and restricted selection indices in red Angus cattle.

Journal of Animal Science, 1990
Performance records on 41,184 Red Angus cattle were analyzed and estimates of parameters calculated for absolute growth rate, relative growth rate and restricted selection indices. Heritability estimates for birth weight, 205-d weight, 365-d weight and postweaning gain were .46 +/- .02, .39 +/- .02, .40 +/- .02 and .36 +/- .02, respectively ...
J A, Winder, J S, Brinks, R M, Bourdon, B L, Golden   +3 more
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Absolute and relative changes in tree growth rates and changes to the stand diameter distribution of Pinus taeda as a result of midrotation fertilizer applications

Canadian Journal of Forest Research, 2008
Silvicultural treatments have the potential to change the diameter distribution of a stand, which can alter the final product mix of the stand. Growth and yield models need to account for these changes in the diameter distribution to assess the economic viability of the silvicultural operations.
Colleen A. Carlson, Harold E. Burkhart, H. Lee Allen, Thomas R. Fox   +3 more
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Absolute maxmum growth rates and enhancement of unstable electromagnetic ion–cyclotron waves in mixed warm–cold plasmas

Journal of Plasma Physics, 1975
SummaryWe calculated relative and absolute maximum linear growth rates of the electromagnetic ion–cyclotron instability produced by the addition of cold plasma to an infinite uniform anisotropic plasma. In this, both accurate numerical solution of the linearized dispersion relation, and approximate analytic calculations, were carried out, and the ...
S. Cuperman, L. Gomberoff, A. Sternlieb
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Evaluation of expected absolute error affecting the maximum specific growth rate for random relative error of cell concentration

World Journal of Microbiology and Biotechnology, 2002
Borzani's [(1994) World Journal of Microbiology and Biotechnology10, 475–476] idea of evaluation of absolute error affecting the 'maximum specific growth rate' (ESGR), calculated on the basis of the first and the last time points of the entire experimental time period, is generalized to the real-life situations where the relative errors of cell ...
Sabyasachi Bhattacharya, Ashis SenGupta, Tapas Kumar Basu   +2 more
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Program of early development in the mammal: Changes in the patterns and absolute rates of tubulin and total protein synthesis during oocyte growth in the mouse

Developmental Biology, 1979
Abstract Oocytes at several stages of growth have been isolated by enzymatic digestion and/or physical disruption of ovaries excised from juvenile and adult mice. The absolute rates of total protein synthesis and tubulin synthesis in these isolated oocytes were determined by measuring sizes of the endogenous methionine pool and apparent rates of ...
R M, Schultz, G E, Letourneau, P M, Wassarman   +2 more
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