Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"asymptote"”.
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Bacterial Blight of Soybean: Survival, Yield Reduction, and Disease Progress Model
… plant disease progress are restricted by the asymptote value which is fixed at 1. Disease progress curves with asymptote values of less than 1 cannot be accurately described by growth models with the asymptote value of 1. Van der Plant's apparent infection rate, which is the rate parameter of …
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Rotationally Resolved Laser Spectroscopy of the 3s2Σ+ ← 2p2II Transition in 6Li20Ne and 7Li20Ne Van Der Waals Molecules
… than 60 cm'<sup>-1</sup> above the atomic Li 3s asymptote and a well of 570(7) cm<sup>-1</sup> located at 4.11(1) a<sub>o</sub> below the asymptote. An anomalously large spin-orbit constant of A =2.77(3) cm'1 was determined for the 2p<sup>2</sup>II (v" =0) state while no splitting is observed for …
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The Study of Turbo Codes and Iterative Decoding
… the proposed engineering tools and the BER asymptote at high Eb/N0, we obtain a new estimate of the average BER performance of the finite-length turbo codes in the form of a lower bound. The amount of computation needed to obtain the lower bound is much less than a full simulation of the …
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Numerical modeling of borehole acoustics : parallel implementation of a loggin-while-drilling (LWD) model
… Helical waves circling the tool are shown to asymptote to the Stoneley wave velocity, giving confirmation of the fluid velocity in the borehole. Parameter studies for simpler borehole geometries show that the Stoneley wave, in soft formations where no shear arrival is present, can be used to …
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An Empirical Investigation of Portfolios with Little Idiosyncratic Risk
… I show that the times series risk reaches an asymptote as portfolio size increases. Cross sectional risk, on the other hand, does not appears to reach an asymptote as portfolio size increases. The second approach consists of comparing portfolios' performance to a benchmark portfolio that is …
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Correcting the Self-Interaction Error of Approximate Density Functionals
… in semi-local DFAs. PZ-SIC recovers the exact asymptote, but its scaled-down version does not. An efficient method to impose the exact asymptote in a hybrid functional is to introduce range separation into the exchange component and replace the long-range portion of the approximate exchange by …
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Sferic propagation in the cutoff region of the earth-ionosphere waveguide
… to enable the analysis. Tweek sferics, which asymptote towards the transverse resonance frequency of the waveguide, predominate in the night path giving the most precise information about ionospheric heights. Weak dispersion and steep transitions in one-dimensional spectra provide information …
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A Double-Error Correction Computational Model of Learning
… predicted and predicting stimulus. The static asymptote of learning familiar from other models of learning is replaced by a similarity measure between the activities of said stimuli, resulting in more temporally correlated stimulus representations forming stronger associative links. Associative …
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Laser diffraction particle sizing : sampling and inversion
… which the intensity is indistinguishable from an asymptote. The instability of inverting unevenly spaced data is compared to that of super-resolving Fourier spectra. Resolution is shown to be inversely proportional to the angular range of observations. The problem is rephrased so that the size …
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Propagation of fluid driven fractures in transversely isotropic material
… a linear elastic fracture mechanics (lefm) asymptote near the tip, high-shear rate Newtonian and power law asymptotes in an intermediate region and a low-shear Newtonian asymptote in the far field. For the same dimensionless toughness, the fluid lag is smaller than for a Newtonian fluid of …
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Optical Excitation of Metastable Krypton and Photoassociative Spectroscopy of Ultracold RbAr
… region detuned a few GHz below an atomic asymptote of argon, analogous to previous work in the homo-nuclear argon or krypton systems. We discuss our methodology and findings. We conclude with a discussion of how our results may be applied to future spectroscopic searches</p>
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Informing U.S. Caribbean fisheries management through simulation modeling: a case of length-based mortality estimation models
… and precision of the model where after an asymptote was reached, increasing n did not improve the means. The variance of the model improved with both increasing n and increasing Ys. Outliers were predictable and could be accounted for on a case-by-case basis. The model developed here can be …
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Fractals in elastic-plastic transitions of random heterogeneous materials
… overall stress-strain responses are curved and asymptote toward perfectly-plastic flows; all these responses display smooth transitions but, as the randomness in properties decreases to zero, they turn into conventional curves with sharp kinks of homogeneous materials. The influence of plastic …
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Impact of Liquefied Natural Gas usage and payload size on Hybrid Wing Body aircraft fuel efficiency
… reached, the scaling performance was observed to asymptote with lower improvement from H2 to H3, as compared from H1 to H2.
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An analysis of correlated curve trend experiments in Eucalyptus grandis
… use of growth functions which impose an asymptote. Allometric growth was investigated on two different sites and growth trends were shown to be anamorphic between sites. This permits a ratio approach to the estimation of growth and yield on one site based on experimental evidence from …
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The Effect of Differing Degrees of Automation and Reliability on Simulated Luggage Screening Performance
… to isolate processing time from performance asymptote, which conventional performance measures such as sensitivity and response time do not distinguish one from the other. Sixty participants performed a luggage screening task unaided (manual condition), with the assistance of an input aid …
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Photoassociative Spectroscopy of Ultracold Metastable Argon and Study of Dual Species Trap Loss in a Rubidium-Metastable Argon MOT
… the 4s[3/2]<sub>2</sub> + 4p[5/2]<sub>3</sub> asymptote of the Ar<sub>2</sub>* diatomic molecule over a 10 GHz range red detuned of the atomic resonance. With a range of probe laser intensities from ∼ 10<sup>2</sup>–10<sup>5</sup><em>I<sub>Sat</sub></em>, 12 resonances have been observed. The …
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A Descriptive Study of the Effect of Payer Source on Multiple Longitudinal Outcome Measures Within the TBI Model Systems National Database Using Longitudinal HLM Analyses
… variability was found in each growth parameter (Asymptote, Pseudo-Intercept, and Rate) (<em>p</em> < .05) for all unconditional models (FIM Cognitive, FIM Mobility, FIM Self-Care, and DRS). Reduced conditional models for the FIM Cognitive, FIM Mobility, FIM Self-Care, and DRS outcome variables …
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Enhanced reach of a rod injected into a cylindrical constraint by on-off injection and rotation
… time and faster rotation speeds reaching an asymptote. The relationship between helical initiation length and release time is linear, but release times vary significantly for the same helical initiation lengths. On-off injection consisted of using a stepper motor to inject the rod with a …
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Magnetic Properties of Iron Meteorites and Their Parent Bodies
… to zero as size increases but instead may asymptote at a non-zero value. Consequently, size does not prevent asteroid magnetization to be detected, although multiple other factors may hinder the detection.
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