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 9 of 9 for “"Simple ratio"”.
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Using Hyperspectral Remote Sensing to Estimate Leaf Area Index of Loblolly Pine Plantations
… with contrasting LAI and foliar nitrogen concentration. The research studies included very different stand structures (age, number and size of the trees). As a result of treatments applied, seasonal, stand and site variation, the range in LAI (0.4 — 3.6 m2 m2) and foliar nitrogen concentration …
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Quantitative analysis and modulation of the spatial operation of the EGF receptor autocrine cell signaling system
… system could be described in terms of a simple ratio between the rate of ligand production (VLT) and the rate of receptor production (VR). At a VLTNR ratio of < 0.3, essentially no ligand was found in the extracellular medium, but a significant number cell receptors (30-40%) were …
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Optimizing yield and crop nitrogen response characterization by integrating spectral reflectance and agronomic properties in sugarcane and rice
… infrared bands i.e., into normalized (NDVI) and simple ratio (SR) forms of vegetation indices. This result was associated with the behavior of near infrared wavebands on the geometrical structure of the plant canopy. There were no significant effects of variety on grain yield prediction models …
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Characterizing spatiotemporal variation in LAI of Virginia Pine Plantations
Loblolly pine is an important managed tree species within the southeastern United States, and better understanding spatial patterns in its productivity has potential to contribute to both modeling and management of the species. Using recently-created pine management maps specific to Virginia and …
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Characteristics of precipitation: CloudSat observations and model predictions of the current and future climate
… more than three times that of precipitation. A simple ratio of these changes is introduced as a type of measure of the efficiency of the atmospheric hydrologic cycle in responding to changes in moisture, and varies between about 0.09 and 0.25 for the models studied. It is shown that the change …
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HYPERSPECTRAL REMOTE SENSING FOR ADVANCED DETECTION OF EARLY BLIGHT (ALTERNARIA SOLANI) DISEASE IN POTATO (SOLANUM TUBEROSUM) PLANTS
… component analysis (PCA), spectral change (ratio) analysis, partial least squares (PLS), cluster analysis, and vegetative indices. PCA successfully distinguished more heavily diseased plants from healthy and minimally diseased plants using two principal components. Spectral change (ratio) …
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Development and evaluation of a fluorescence emission ratio-based fiber opticpH measurement system for use in monitoring changes in tumor pH during clinical hyperthermia
… measurement at a specific wavelength or the ratio of two emission intensities, at the same wavelength, following sequential excitation. Single intensity measurements are prone to substantial errors introduced by differences in the ionic strength and temperature of the samples as well as by …
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Hypsometric and geometric controls on hydrodynamics, tidal asymmetry, and sediment connectivity in shallow estuarine systems
… increases with distance from basin entrance. A simple ratio between tidal basin width and entrance width was defined to describe the planform shape of the basin. This metric, termed the ‘basin dilation factor’ indicates whether a basin can be designated as a divergent or convergent geometry. …
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Beyond conventional boundaries: new technologies, methodologies, and procedures for the benefit of aerial archaeological data acquisition and analysis
Archeologische teledetectie zag een goede eeuw geleden het levenslicht. De data waarmee deze tak van de archeologie zich bezighoudt zijn heel divers, maar alle worden ze verworven vanaf een zekere hoogte boven de aarde (bijv. foto’s genomen door spionagesatellieten of vanuit een vliegtuig, …