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 19 of 19 for “"multi-stable"”.
-
Multi-stable Compliant Rolling-contact Elements
… concepts and models of large-angle, compliant, multistable, revolute joints. This research presents evidence of the capability of these models and concepts by presenting a case study in which the miniaturization of revolute joints are examined. Previous attempts at multistable revolute joints …
-
State switching in multi-stable systems: control and optimisation.
This thesis studies state-switching in multistable systems, so that they can switch from inefficient operating states to a more efficient one, in order to achieve performance enhancement in real-life engineering systems. Multistable systems have more than one stable state under a set of parameters …
-
Transitions-felt: William James, Locative Narrative and the Multi-stable Field of Expanded Narrative
… Extending the cognitive term ‘perceptual multistability’, that refers to switching between interpretations experienced when we look at an ambiguous figures, such as, the Necker cube, this thesis develops the position that expanded narrative practices and specifically locative narrative, a …
-
Parameterized Shape Adaptive Material: A New Design Method for Inclusive Sportswear
… etc.). This study focuses on transforming multi-stable mechanisms into composite form to create shape adaptive wearable materials for periods of body size and shape change. A corresponding predictive mathematical model is created to explore geometric parameter aˆ, which is the ratio of unit …
-
Travelling waves in Lotka-Volterra competition models
In this thesis, we study a class of multi-stable reaction-diffusion systems used to model competing species. Systems in this class possess uniform stable steady states representing semi-trivial solutions. We start by considering a bistable, interaction, where the interactions are of classic …
-
Design of Kresling inspired architected materials by using Polyjet technique
… materials, such as tunable energy absorption and multi-stable states. Initially, a quantitative review of the achieved mechanical performance of PJ architected materials in the context of Ashby charts was developed. Subsequently, the manufacturing limitations of PJ were assessed to then determine …
-
Functional nucleic acids as substrate for information processing
… a computational protocol that functions on a multi-molecular level, which enable us to directly incorporate the dynamic characteristics of nucleic acids molecules. To allow the implementation of this computational protocol, we developed a designer that able to solve the nucleic acids inverse …
-
Developing a stable isotope approach to trace the sources and metabolism of phosphorus in freshwaters
… represents a novel and potentially powerful stable isotope tracer for biogeochemical research. Analysis of δ18Op may offer new insights into the relative importance of different sources of phosphorus within natural ecosystems. Due to the isotope fractionations that occur alongside metabolism …
-
Achieving Complex Motion with Fundamental Components for Lamina Emergent Mechanisms
… Another challenge in designing LEMs is creating multi-stable mechanisms with the ability to have coplanar links. A method is presented for offsetting the joint axes of a spatial compliant mechanism to introduce multi-stability. A new bistable spatial compliant linkage that uses that technique is …
-
Modeling the Greenland Ice Sheet response to climate change in the past and future
… GIS exhibits hysteresis behavior (i.e., it is multi-stable under certain conditions), and that a temperature threshold exists above which the ice sheet transitions to an essentially ice-free state. The threshold in the global temperature is estimated to be in the range of 1.3-2.3°C above …
-
Dynamics of a Q-switched all-fibre laser
… Additionally, we report observed hysteresis and multi-stable dynamics for a range of absorber lengths for which the laser evolves along two different operational paths during up-scans and down-scans over ranges of the input pump. This bistable region is close to the switch between the two …
-
Dielectric Elastomer Actuators in Electro-Responsive Surfaces Based on Tunable Wrinkling and the Robotic Arm for Powerful and Continuous Movement
… to self-insulate breakdown faults even after multiple high voltage breakdowns, and the induced breakdown punctures can be used for amplification of local electric fields for wrinkle formation at lower applied voltages. We enhance fundamental understanding of the system by using different …
-
Stable Isotopes As Intrinsic Markers of Contaminant Dynamics in the Lake Winnipeg Food Web
… the objectives of this study were to use a multi-stable isotope approach (δ15N, δ13C, δ34S and δ2H) to a) identify trophic interactions among fishes and piscivorous birds and b) track the dietary transfer of trace elements. An intensive field program was undertaken in 2009 and 2010. Muscle …
-
Commonalities And Differences In Visual And Auditory Multistability
Perceptual bi/multi-stability—the phenomenon in which perceptual awareness switches between alternative interpretations of a stimulus—can be elicited by a large range of stimuli. The phenomenon is explored in vision, audition, touch, and even olfaction. The degree to which perceptual switching …
-
Proteomic Investigation of Endocrine Therapy Resistance in Breast Cancer Investigating the Molecular Mechanisms for SERM Resistant Cell Lines Using SILAC-Based Proteomic Approach
… of resistance were investigated using a novel multi-stable isotope labelled amino acids (SILAC) proteomics approach in phenotype-specific breast cancer cell lines resistant to endocrine treatment. Method: In vitro chemo-sensitivity (IC50) was determined for MCF7, T47D, MDA-MB-231, MDA-MB-468, …
-
The development of a real-time wave energy device control algorithm based on artificial neural network
… prediction duration is thus recommended.The multi-stable mechanism of the WEC is also investigated in this thesis. A non-linear PTO (power take-off) system with two oblique springs is proposed. The PTO system is either monostable or bistable depending on the initial configuration of the …
-
Design techniques for safe, reliable, and trustworthy analog circuits
… problem in AMS circuit design is considered: multi-stable operation. A definitive taxonomy of this sub-class of hardware Trojans was constructed to complement existing definitions and efforts on Trojan classification. An example of an AMS circuit with such a Trojan is provided to validate the …
-
On the fate and consequences of conscious and non-conscious vision
… are the changes in perception that occur with multi-stable phenomena (i.e, as with the Necker cube) or when subjects are presented with dissimilar images to each eye, a condition called binocular rivalry. Without a functioning visual brain we are not able to properly see. Lesions to the visual …