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 471 for “"ANT"”.
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Ant Tribe
<p>"Ant Tribe" describes the post-80s generation university graduates who live together in poor conditions without Social security in communities around China's major metropolises. They dream of a better life in big cities but struggle with low-paying jobs. These struggling "elites" have become the …
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Anting Behavior in Birds: Ant Selection and Effect of ant Chemistry on Feather Ectoparasites
<p>Active anting behavior occurs when songbirds apply ants to their feathers. During anting displays, a bird draws its wings forward in front of the head and swings its tail around to the far right or left. Both wing and tail feathers are then rubbed with ants held in the bird's beak. The potential …
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Grafeno ant skandžio oksido fotolitografija /
In this paper, I aimed to construct a microstructure on graphene using conventional microelectronic fabrication methods, such as laser photolithography and physical vapor deposition. This research was a part of a project carried out by NFTMC Vilnius University Photonics and Nanotechnology Institute …
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Impact of the invasive ant Linepithema humile on native ant assemblages on the western slopes of Table Mountain and implications for ant-butterfly associations
The Argentine Ant, Linepithema humile (Hymenoptera: Formicidae), is one of the world's most successful invasive species and invades undisturbed Fynbos habitats in South Africa, displacing native arthropod species and affecting interspecific associations. In order to assess the impact of Li. humile …
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Dynamics of salticid-ant mimicry systems
… predation pressure. The aggressive nature of ants, and their possession of noxious chemicals, stings and strong mandibles make them unfavourable prey for many animals. The resemblance of a similar-sized arthropod to an ant can therefore also protect the mimic from predation. Myrmarachne is an …
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The Ant and the Trap: Evolution of Ant-Inspired Obstacle Avoidance in a Multi-Agent Robotic System
… with each passing year. We created the iAnt robot as a platform to test how well an ant-inspired robotic swarm could collect resources in an unmapped environment. Although swarm robotics is still a loosely defined field, one of the included hallmarks is multiple robots cooperating to …
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Ant colony optimization for agile motion planning
… This thesis investigates the suitability of the Ant Colony Optimization (ACO) heuristic for the agile vehicle motion planning problem. An ACO implementation tailored to the motion planning problem was designed and tested against an existing genetic algorithm solution method for validation. …
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Using ant colony optimization for routing in microprocesors
Power consumption is an important constraint on VLSI systems. With the advancement in technology, it is now possible to pack a large range of functionalities into VLSI devices. Hence it is important to find out ways to utilize these functionalities with optimized power consumption. This work …
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Phylogeography of the Malagasy Ant Species Otontomachus coquereli
… area boasting levels of endemism that blatantly raise questions about their origins. There is evidence that these endemics arose via insitu diversification during Madagascar's ~88 million year isolation, even though it was essentially in the middle of Gondwana with ample opportunity to …
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Ant cuticle microsculpture: diversity, classification, evolution, and function
<p>My thesis covers the intricacies of ant microsculpture diversity, classification, evolution and function. To do this, the thesis is organized into two chapters. The first chapter is a review of ant cuticle and microsculpture diversity as well as including analyses examining the evolution and …
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Effects of fragmentation and invasion on ant communities
… uses such as pastures, sugarcane and oil palm plantations. The resulting remnants generally maintain lower species diversity relative to unfragmented forest, and the species composition of what remains often includes generalist and invasive species. Another causative agent of extinction are …
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Global change effects on ant-mediated seed dispersal
… mutualisms, including seed dispersal by ants, are critical to the assembly of communities and the function of ecosystems. However, the consequences of human-caused global change factors, such as habitat fragmentation and climate change, for the future of these mutualisms are not fully …
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Long-term open-pit planning by ant colony optimization
… algorithm has been developed based on the Ant Colony Optimization (ACO) and its application in long-term scheduling of a two dimensional hypothetical block model has been analysed. ACO is inspired by the foraging behaviour of ants (i.e. finding the shortest way from the colony to the food …
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Long-term open-pit planning by ant colony optimization
… algorithm has been developed based on the Ant Colony Optimization (ACO) and its application in long-term scheduling of a two dimensional hypothetical block model has been analysed. ACO is inspired by the foraging behaviour of ants (i.e. finding the shortest way from the colony to the food …
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Ant colony heuristics for the dynamic facility layout problem
… research proposes three heuristics based on the ant colony optimization (ACO) heuristic to solve the DFLP. The performance of the heuristics was evaluated using two data sets taken from the literature. Results obtained show that the proposed heuristics are effective for the dynamic facility …
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A Multi-Objective Ant Colony Optimization Algorithm for Infrastructure Routing
… routing problems: the Multi-Objective Ant Colony Optimization (MOACO). This algorithm offers a constructive search technique to develop solutions to different types of infrastructure routing problems on an open grid framework. The algorithm proposes unique functions such as graph …
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Evolution of colony characteristics in the harvester ant genus Pogonomyrmex
… verschiedenster Koloniecharakteristika vorantreibt. Um die Variabilität intrakolonialer Verwandschaftsgrade innerhalb der Gattung Pogonomyrmex genau zu bestimmen, wurde für ausgewählte Mitglieder der Gattung, nämlich für P. (sensu stricto) rugosus, P. (sensu stricto) badius and P. …
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Formation of branching angles at bifurcations of ant trail networks
Ants form dendritic trail networks around the nest to search for and exploit food sources located at the periphery of the network. Studies found these trail networks to be very efficient for the ants in terms of time and energy, which later was found stored in the bifurcation angle ([theta]) of the …
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Daily Nest Opening and Closing of the Ant Pogonomyrmex Californicus
<p>In a study of timing in this ant ten of the twelve nests which were observed opened synchronously in the morning and closed in the evening. However, one was never seen to close and another closed during the day and stayed open at night.</p> <p>A seasonal progression was shown by later opening …
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