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.
Results
Showing 1 to 14 of 14 for “"Spatial scaling"”.
-
Temporal and spatial scaling of coupled hydrological and biogeochemical processes in river basins
… across the river network: the influence of spatial scale on these processes, and the effects of temporal variability of flow inherited from climate. Empirical relationships between several nutrient uptake metrics and the flow condition and nutrient concentration level are derived from field …
-
Are animals choosing foraging patches according to spatial scaling laws or predator avoidance arguments? : a study on grazing ungulates in Hluhluwe Imfolozi
Spatial scaling laws predict that patch choke in animals in determined by body size, with smaller animals utilising smaller patches. However, this theory does not take into consideration the potential impact predator avoidance behaviour may have on patch choice. Smaller animals are more at risk …
-
SPATIAL VARIABILITY OF THERMAL PROPERTIES IN RECLAMATION COVER SYSTEMS
… methods do not provide any information as to the spatial variation of temperatures and thermal properties at scales other than the point scale. The objective of this study was to investigate the spatial scaling of thermal properties in reclamation cover systems. A distributed temperature sensing …
-
Subpixel multiframe registration for formation flying spacecraft
… of time), efficient (requiring only FFT and spatial scaling operations), and parameterless (requiring no tuning for image classes). Additionally, the algorithm performs well under extreme levels of noise, obtaining an accurate motion estimate even when individual frames are so severely …
-
An Analytical Motion Filter for Humanoid Robots
… gait two primary methods were utilized: time and spatial scaling. Spatial scaling scaled the COM trajectory down towards a known stable trajectory. Time scaling worked similarly by changing the speed of the motion, but was limited in effectiveness based on the types of instabilities in the motion …
-
To pave or not to pave: A social landscape analysis of land use decision-making in the Lamprey River watershed
… concerning community, conflict and temporo-spatial scaling. Challenges and opportunities are also identified in moving towards watershed based land use decision-making. Conclusions represent a mix of optimistic and pessimistic themes regarding current land use decision-making and suggested …
-
The Reflected Quasipotential: Characterization and Exploration
… a large deviation principle (with respect to a spatial scaling parameter) with V(x) as the rate function. The Skorokhod Problem is an essential device in the construction and analysis of reflected Brownian motion and our value function V(x). Here we characterize V(x) as a solution to a partial …
-
Fine and coarse-grained parallelisation techniques for complex systems
… to evaluate performance in terms of speed-up and spatial scaling. Implementation of an existing complex system facing scalability issues (soil microbial model) has been identified and relevant optimisation techniques have been applied and quantified. Future directions and improvements to further …
-
Loco-Radio : designing high-density augmented reality audio browsers
… the audio browsing experience in high-density spatialized audio environments, we introduce auditory spatial scaling, which enables users or the system to adjust the spatial density of perceived sounds based on context. The audio comes from a custom geo-tagged audio database, which contains a …
-
Analysis of Precision Agriculture Datasets for on -Farm Research
… consideration of limitations due to differential spatial scaling, multicollinearity, and autocorrelation. The main objective of the presented studies is to evaluate methods of analysis for large datasets generated on farm using PA technologies. In order to achieve my objective, I presented two …
-
A mechanistic framework for understanding prairie stream fish distributions
… associations can provide a basis for predicting spatial distributions in contemporary habitats as well as how those distributions might change in response to anthropogenic environmental change. Developing species distribution models is limited by an incomplete understanding of functional traits, …
-
Fracture mechanics of volcanic eruptions
… an occurrence often observed in the field. Scaling properties of propagating fractures are also considered. The seismic bvalue reaches a minimum at the time of failure, similar to observations from the field and measurements of acoustic emissions in the laboratory. Similarly, the fractal …
-
Effects of Climate, Forest Structure, Soil Water, & Scale on Biosphere-Atmosphere Gas Exchange in a Great Lakes Mixed-Deciduous Forest
… ability to model weather and climate at various spatial and temporal scales is highly dependent on our understanding of the ecosystem parameters that control mass and energy exchange between the biosphere and atmosphere. Over forested canopies, the physical structure of vegetation interacts with …