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 14 of 14 for “"cuttlefish"”.
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A computational approach to the quantification of animal camouflage
… in the animal kingdom. Cephalopods like cuttlefish and octopus mastered a rather unique skill: they can rapidly adapt the way their skin looks in color, texture and pattern, blending in with their backgrounds. Showing a general resemblance to a visual background is one of the many …
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Dynamic lighting and its impact on the behaviour of marine invertebrates
… of three marine invertebrates, the common cuttlefish *Sepia officinalis*, the shore crab *Carcinus maenas*, and the brown shrimp *Crangon crangon*. In Chapter 2, I investigated whether caustics impaired the hunting success of cuttlefish. By exposing cuttlefish to live prey in different …
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A computational approach to the quantification of animal camouflage
… in the animal kingdom. Cephalopods like cuttlefish and octopus mastered a rather unique skill: they can rapidly adapt the way their skin looks in color, texture and pattern, blending in with their backgrounds. Showing a general resemblance to a visual background is one of the many …
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Case Studies in Invertebrate Visual Processing: I. Spectral and Spatial Processing in the Early Visual System of Drosophila melanogaster II. Binocular Stereopsis in Sepia officinalis
… processing mechanism known as stereopsis in the cuttlefish Sepia officinalis. Stereoscopic vision is used to assess depth information by comparing the disparity between left and right visual fields. This strategy is commonplace in vertebrates having evolved multiple times independently but has …
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Structural Design Inspired by the Multiscale Mechanics of the Lightweight and Energy Absorbent Cuttlebone
Cuttlebone, the endoskeleton of cuttlefish, offers an intriguing biological structural model for designing low-density cellular ceramics with high stiffness and damage tolerance. Cuttlebone is highly porous (porosity ~93%) and lightweight (density less than 20% of seawater), constructed mainly by …
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Do Pinnipeds Have Personality? Coding Harbor Seal (<i>Phoca vitulina</i>) and California Sea Lion (<i>Zalophus californianus</i>) Behavior Across Contexts
… as chimpanzees (King & Figueredo, 1997) and cuttlefish (Carere et al., 2015), but marine mammals remain vastly underrepresented in this area. A broad range of traits have been assessed only in the bottlenose dolphin (Highfilll & Kuczaj, 2007), while consistent individual differences in a few …
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Comprehensive Modeling of Novel Thermal Systems: Investigation of Cascaded Thermoelectrics and Bio-Inspired Thermal Protection Systems Performance
… inspired by the porous internal skeleton of the cuttlefish also known as cuttlebone. The presented bio- inspired thermal protection has excellent features to serve as an integrated thermal protection system for spacecraft vehicles including being lightweight (93% porosity) and possessing high …
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Mechanical Design of Selected Natural Ceramic Cellular Solids
… including the honeycomb-like structure in cuttlefish bone (or cuttlebone), the stochastic open-cell structure in sea urchin spines, and the periodic open-cell structure in starfish ossicles, I systematically investigate the mechanical design strategies of these natural ceramic cellular …
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Convergent cognitive evolution: what can be learnt from comparisons with corvids and cephalopods?
… suggested that coleoid cephalopods (octopus, cuttlefish, squid) may have developed complex cognition convergently with large-brained vertebrates but current evidence is not sufficient to fully evaluate these propositions. The aim of my thesis is to gain further insight into these issues. My …
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Review and optimization of housing and husbandry of anemonefishes for use in research
… and provision of higher quality foods (e.g., cuttlefish, shrimp, fish eggs, etc.) beyond commercial pellets may enhance survival of larvae. In conclusion, our research suggests that the anemonefish research community should be discussing the optimization and standardization of housing and …
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3D-printing form and function
… length scales (e.g. distributed sensors in cuttlefish, or sensorimotor pathways and resonant muscles in insects). These far exceed our current fabrication capabilities, and replicating all the functions of natural systems has remained a distant dream. 3D-printing has resolved many challenges …
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Kinematics and Hydrodynamics of Cephalopod Turning Performance in Routine Swimming and Predatory Attacks
… squid <em>Lolliguncula brevis</em> and dwarf cuttlefish <em>Sepia bandensis</em> (Chapter 2), 3D velocimetry techniques to examine hydrodynamic turning performance of <em>L. brevis</em> (Chapter 3) and kinematic analyses of turning performance of <em>L. brevis</em> during predatory attacks on …
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Three-Dimensional Sketching within an Iterative Design Workflow
… built our prototype 3d drawing platform (Cuttlefish 3D) over a popular 3d modeling software ecosystem (Rhinoceros 3D) that has a powerful feature set, a low cost of entry, and a passionate and dedicated user and developer base. In this way, a working drawing can directly become a working …
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3D printing of bone scaffolds using powders derived from biogenic sources
… three biogenic calcium carbonates were chosen: cuttlefish (Sepia Officinalis) bones, mussel (Mytilus Galloprovincialis) shells and chicken eggshells. Besides their abundance and availability, they were selected because of their different composition: aragonite in cuttlebones, calcite in …