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 12 of 12 for “"disturbance response"”.
-
Assessing conservation of a tropical African estuary : waterbird disturbance, livelihoods, and ecotourism
… by assessing the vulnerability of waterbirds to disturbance from human activity in the estuary, the current use and importance of the area to local livelihoods, and the value (current and potential) of tourism. Waterbird densities and levels of human activity were quantified from 20 September to …
-
PID Control, Design, Extension, Application
… requirements of a control system, such as: load disturbance response, robustness with respect to model uncertainties, measurement noise response, set point response. The primary design goal of the proposed design methods are to achieve good rejection of a load disturbance with the constraint on …
-
Control and Communication with Signal-to-Noise Ratio Constraints
… where an LTI plant, subject to a stochastic disturbance, is to be controlled over the channel. The controller is based on output feedback and consists of an encoder/observer that measures the plant output and transmits over the channel, and a decoder/controller that receives the channel …
-
AUTOMATIC TUNING OF PROCESS CONTROLLERS : PRACTICAL APPROACHES
… process dynamics changes. The signal from a load disturbance responses can also be used for adaptation. The variable set point weighting technique is also introduced in this thesis. This new technique can reduce overshoot of set point response without sacrificing the rise time. Thus the controller …
-
Hybrid adaptive control using the inverse system
… desired degree of closeness in the presence of disturbance by suitably choosing a feedback gain parameter. (ii) If certain conditions are satisfied, the model can supply the required information to the inverse without explicit differentiation. (iii) When some higher-order derivatives of the …
-
In defence of flowers: The ecology and biochemistry of a chemical defence, cyanogenesis, in Proteaceae
… not correlated with other traits (e.g. colour, disturbance response) or phylogenetic position. Findings demonstrate the power of MALDI-MSI to reveal dynamic and fine-scale spatial patterns in the distribution of different CNglycs. Data are discussed in relation to defence theories and potential …
-
The response of a Rocky Mountain forest system to a shifting disturbance regime
… precipitation patterns may lead to increasing disturbances from wildfire, insect outbreaks, drought, and extreme weather events, which may greatly accelerate rates of ecosystem change. However, the role of disturbance in shaping forest response to climate change is not well understood. Better …
-
Electrical performance and economic feasibility analyses of hybrid and battery storage devices used in remote area islanded renewable energy systems
… in terms of power security, load matching, power response and charge algorithm accuracy. The results showed that deploying an islanded RES in South Africa is indeed electrically feasible based on the high power security, load matching accuracy, and disturbance response seen in the solar-RES cases. …
-
Modeling and integration of smart control strategies to improve large-scale pv system management and operation in a low inertia power grid
… a crucial parameter for grid stability and disturbance response, especially with the increasing presence of PV generation. By analyzing the system's dynamic response, this objective aims to identify the system's inertia level and its implications for PV integration, ensuring secure power …
-
The Effects of Benthic Organisms on Intertidal Sediment Erodibility
… transport, a critical process during small-scale disturbance recovery. The erosion of surface sediments is also vital to benthic-pelagic coupling, where resuspended microbes and organic material become available to suspension feeders and/or transported to adjacent habitats. On sandflats, the …
-
New Zealand seagrass (Zostera muelleri) response to acute sedimentation: Linking non-structural carbohydrate reserves to resilience
… current knowledge gaps associated with seagrass disturbance-response regimes and develops standardised methods to measure seagrass health and resilience. Sedimentation associated with increased human activity is a major environmental stressor to seagrass; yet little is known about how …