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 146 for “"changing environments"”.
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Data-Driven Operations in Changing Environments
… solutions often requires the operational environments being stationary. However, recent examples have shown that the operational environments can change dynamically. It is thus imperative to design data-driven algorithms that is capable of working in time-varying environments. We first …
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Multi-objective evolutionary optimization in time-changing environments
… optimization techniques for the solution of time-changing multi-objective problems. Many optimization problems, ranging from the design of controllers for time-variant systems to the optimal asset allocation in financial portfolios, need to satisfy multiple conflicting objectives that change in …
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A Framework for Real-Time Path Planning in Changing Environments
As part of our presentation, we discuss the construction of the roadmap, including how samples of the configuration space may be generated and how to connect the samples to form the roadmap. We then discuss the mapping from the workspace to the roadmap, explaining efficient techniques for its …
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Statistical and process-based models for understanding species distributions in changing environments
… the dynamic response of species distributions to changing conditions. PBMs are expected to be superior in this respect, but they need very specific data unavailable for many species, and are often more complex and require more computational effort. More recently, hybrid models link the two …
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A roadmap-based planner for fast collision-free motion in changing environments
… with motions that feel reactive and intuitive in changing environments. My approach to accomplish this is to combine a roadmap-based motion planner with a sequential, convex trajectory optimization library called TrajOpt. The roadmap is used to produce collision-free seed trajectories, which are …
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Phenotypic Plasticity in Economically and Ecologically Important Bivalves in Response to Changing Environments
Marine bivalves are ecologically important, providing ecosystem services like filtering water, stabilizing substrate, and creating hard structure for epibionts. Cultured bivalves are also economically important, supporting thousands of aquaculture jobs nationwide and providing valuable protein …
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Climate change, variable colony sizes and temporal autocorrelation : consequences of living in changing environments
Natural and human induced environmental changes affect populations at different time scales. If they occur in a spatial heterogeneous way, they cause spatial variation in abundance. In this thesis I addressed three topics, all related to the question, how environmental changes influence population …
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Parametric and nonparametric approaches to explain and predict nonlinear population dynamics in changing environments
… understanding and predicting the effects of changing environments on the dynamics of biological populations evolving in a continuously changing world is, nowadays, one of the most important challenges in biology. In this thesis we have addressed this challenge using two different approaches. …
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Particle swarm optimization for dynamically changing environments with particular focus on scalability and switching cost
… this thesis considers the impact of cost for changing solutions after environmental changes. In fact, changing solutions in real-world problems is costly. Furthermore, larger changes have higher cost and need more resources such as time, human resources and energy. Thus, lack of switching cost …
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Using visual feedback to guide movement: Properties of adaptation in changing environments and Parkinson's disease
… of visual feedback strategies in response to environments that changed daily. We introduced visual environments that could change as a function of the likelihood of experiencing a visual perturbation, or the direction of the visual perturbation bias across the workspace. By testing subjects in …
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River temperature behaviour in changing environments: trends, patterns at different spatial and temporal scales and role as a stressor
… Furthermore, to assess the impacts of changing river temperatures on the river ecosystem, it is crucial to better understand the responses of freshwater biota to simultaneously acting stressors such as changing river temperatures, hydrology and river quality aspects (e.g. dissolved …
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Human Occupation and Changing Environments During the Middle to Later Stone Ages: Soil Micromorphology at the Haua Fteah, Libya
… dispersals throughout human evolution. Shifting environments potentially controlled movements of late Middle Stone Age (MSA) and Later Stone Age (LSA) modern human populations during Marine Isotope Stages 5–2 (MIS5–2) both within, and out of, Africa. Understanding the environmental context of the …
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Organizational stress and mental models: An explanation of diversity in strategic response to environmental change
… environment. However, some firms in profoundly changing environments vary to a significant extent in the timing and content of their strategic response.
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Morphometric approaches to systematics and microevolution: Applications from paleozoic bryozoa
… resolution over a large geographic area, through changing environments, over a sustained period of time, with an abundant, complex, eurytopic fossil group. The combination of cryptostome bryozoans, revised taxonomic procedures, multivariate morphometric methods, and advances in microcomputer …
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Real-time Analysis of Aerosol Size Distributions with the Fast Integrated Mobility Spectrometer (FIMS)
… less valuable for probing dynamic, rapidly changing environments. Our research aims to address this limitation by developing a real-time data analysis pipeline for FIMS, allowing for adaptive aerosol measuring, eliminating lengthy delays between data collection and analysis, and boosting …
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Workplace Violence Prevention In Homecare: The Homecare Measures For Employee Safety (homes) Toolkit
… throughout the day. Due to the nature of the changing environments and that this work is usually performed solo, the approach and management of safety must include measures and interventions pertinent to this work. This project employs a literature review, survey of homecare workers and law …
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Exploring the factors influencing agility adoption in selected financial institutions in South Africa
Due to the rapidly changing environments of our world today, huge pressure is mounting on organisations to find innovative ways to remain competitive and profiting. The goal of this study was to investigate factors leading to agile organisations using the case of selected financial institutions in …
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An investigation of the environment-strategy-structure relationship of post-industrial (information-age) organizations
… amassed that predicts the advent of rapidly changing environments hinging on technological advancement (e.g., Bell 1973; Huber 1984; Handy 1989; Glazer 1991). These environmental changes are expected to typify the environments faced by firms in the 21st century post-industrial (or …
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EXPERIENCE-DEPENDENT STRUCTURAL PLASTICITY IN A NATURALLY BEHAVING ANIMAL MODEL
The ability to adjust to changing environments is critical for an animal's survival. Neurons can undergo structural changes, such as branch addition, branch retraction, or altering the number or shape of spines which change the neural connectivity in the brain. The regulation of a neuron's …
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Diversity, variability and persistence elements for a non-equilibrium theory of eco-evolutionary dynamics
Natural ecosystems persist in variable environments by virtue of a suite of traits that span from the individual to the community, and from the ecological to the evolutionary scenarios. How these internal characteristics operate to allow living beings to cope with the uncertainty present in their …
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