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 12 of 12 for “"Spider web"”.
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Spider web geometry inspires long span roof trusses
… the methods and results used to learn from spider web geometries and implement them into a practical long span roof truss structure. Specifically, utilizing data and properties of spider webs found in research from Su et al. (Su I. a., 2016). The research uses and implements spider's web …
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Structural and mechanical analysis of the black widow spider web subjected to stretching, expansion and wind
The web of the black widow is apparently a random spatial arrangement of threads, which provides its occupant with housing, means to capture prey and protection. However to ensure that these functions are fulfilled, the spider has evolved to adapt the architecture of the web so that it would be …
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Imaging, Mechanics, Construction, and Sonification of Three-Dimensional Spider Webs
Spiders, silks and webs have adapted, survived, and prospered in most ecosystems for millions of years, despite being subjected to environmental and human pressures. They are the proof of an evolutionary success, in part due to the exceptional mechanical and biological properties of their silks but …
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Modeling spider webs as multilinked structures using a Chebyshev pseudospectral collocation method
Spiders weave intricate webs for catching prey, providing shelter and setting mating rituals; arguably the most notable of these creations is the orb web. In this thesis we model the essential vibrations of orb webs by first considering a spider web as a multilinked structure of elastic strings. We …
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Beaver Dams, Spider Webs, and the Sticky Wicket: An Investigation On What Counts as Technology and What Counts as Knowledge
… from one another. The complexity of a spider web is not matched by many human-made technologies. Beaver dams, beehives, and ant hills are great creations made by non-human animals. Davis Baird has argued that our scientific instruments bear knowledge in important ways, and the idea of …
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Caratteristiche merceologiche, nutrizionali, sensoriali e di freschezza di Nasello (Merluccius merluccius), Lanzardo (Scomber japonicus) e Suro (Trachurus trachurus)
… species in two catch season and the relevant spider web diagrams compared. On the whole, two hundred and eighty fish were analysed during this research project in order to obtain a nutritional profile of the three species. One hundred and fifty was the overall number of specimens used to …
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Spider's orb web : implications of structural hierarchies to materials-based evolution
Among a myriad of spider web geometries, the orb web presents a fascinating, exquisite example in architecture and evolution. Its structural component, the silk protein, is an exemplary natural material because its superior properties stem intrinsically from the synergistic cooperativity of …
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Fog Harvesting: Inspired by Spider Silk
… this research. This thesis topic is inspired by spider silk's ability to direct water droplets to certain locations to further enhance water collecting rate. This directional droplet movement is caused by spindle-knot and joint structure on the biomimetic silk. The spindle-knot is randomly …
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PEDOT:PSS Fibre Building Blocks for Adaptive and Sustainable Bioelectronic Structures
… fibre assembly for repair and upgrade; spider web-like biomimetic construction; down-scale fibre coating process for reduced wastage and improved control. They were arranged into experimental research projects based on a primary material poly(3,4-ethylenedioxythiophene) polystyrene …
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Perceptions of cataracts and cataract services of elderly persons in Mathangwane, Botswana
… a focus group discussion: i. Cataract as the 'spider web'; ii. Curing cataract with traditional herbs; iii. Cataract a problem of the elderly caused by modem food; iv. The burden of cataract blindness: 'mealie on the fire'; v. The ambivalent voice of elderly persons about cataract services. …
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High Performance Communication Framework for Mobile Sinks Wireless Sensor Networks
… sinks wireless sensor networks, we proposed a spider-net zone routing protocol to improve network efficiency and lifetime. Our proposed routing protocol utilise spider web topology inspired by the way spiders hunt prey in their web to provide reliable and high performance data delivery to …
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Geospatial patterns and determinants of choice of secondary healthcare facilities among National Health Insurance enrolees in Ibadan, Nigeria
… assign enrolees to the NHIS facility they used. Spider web diagrams that depict geo-spatial relationship between enrolees' residence, patronised health care facilities and health care facilities closest to the residences were constructed. Quantitative data were collected from 432 NHIS enrolees …