Ant Colony
Mostrando 1-12 de 83 artigos, teses e dissertações.
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1. Streptococcus Colonial Growth of Dental Plaque Inhibition Using Flavonoid Extract of Ants Nest (Myrmecodia pendans): An in Vitro Study
Abstract Objective: To know the activity of resistance of flavonoid content in ant nest plant in decreasing the number of colonies S. mutans oral cavity of children as a medic herbal material. Material and Methods: The subjects were plaque sample of 20 children aged 7-12 years. Research begins by making toothpaste from ant nest extract. Samples of children
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 02/09/2019
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2. Winged ants (Hymenoptera: Formicidae) presence in twigs on the leaf litter of Atlantic Forest
Resumo: Na serapilheira as formigas têm disponíveis diversos recursos de nidificação, como troncos e galhos vivos ou mortos, folhas, frutos e sementes. Nos galhos são encontrados indivíduos adultos e imaturos, mas também rainha e alados. A produção de alados exige tempo e energia por parte da colônia. O objetivo deste estudo foi investigar a presen
Biota Neotrop.. Publicado em: 09/05/2019
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3. The trade-off between the transmission of chemical cues and parasites: behavioral interactions between leaf-cutting ant workers of different age classes
ABSTRACT Social animals are faced with an intriguing dilemma. On the one hand, interactions between individuals are essential to exchange information and to promote cohesion, while on the other hand such interactions carry with them the risk of catching and transmitting parasites. This trade-off is particularly significant for social insects because low with
Rev. Bras. entomol.. Publicado em: 2017-01
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4. Performance-based design optimization using uniform deformation theory: a comparison study
The uniform deformation theory (UDT) is a relatively new concept in structural seismic design optimization. However, the results of optimization based on this theory have not yet been compared with other optimization techniques such as metaheuristics, and the optimality of the designs has been proved only by comparing the results with the conventional design
Lat. Am. j. solids struct.. Publicado em: 2015-01
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5. Protein content of leaf-cutting ant queens before the nuptial flight and during the post-claustral phase
Protein content of leaf-cutting ant queens before the nuptial flight and during the post-claustral phase. This study evaluated the crude protein content of queens of Atta sexdens before the nuptial flight and after the claustral phase in laboratory and field colonies. The hypothesis was that protein is used for survival of the queen and for early colony grow
Rev. Bras. entomol.. Publicado em: 21/11/2014
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6. A comparative analysis of three metaheuristic methods applied to fuzzy cognitive maps learning
This work analyses the performance of three different population-based metaheuristic approaches applied to Fuzzy cognitive maps (FCM) learning in qualitative control of processes. Fuzzy cognitive maps permit to include the previous specialist knowledge in the control rule. Particularly, Particle Swarm Optimization (PSO), Genetic Algorithm (GA) and an Ant Col
Pesqui. Oper.. Publicado em: 08/11/2013
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7. An ant colony algorithm applied to lay-up optimization of laminated composite plates
Ant colony optimization (ACO) is a class of heuristic algorithms proposed to solve optimization problems. The idea was inspired by the behavior of real ants, related to their ability to find the shortest path between the nest and the food source. ACO has been applied successfully to different kinds of problems. So, this manuscript describes the development a
Lat. Am. j. solids struct.. Publicado em: 2013-05
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8. Maximization of Fundamental Frequency of Laminated Composite Cylindrical Shells by Ant Colony Algorithm
ABSTRACT: The success in developing modern aerospace systems addresses competitive subjects as optimization, reduced costs, sustainability, environment, weight, and safety. There is an increased demand for lighter materials such as laminated composites. In order to match the demand of aeronautical companies, the shell structures are very important. The dynam
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
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9. Otimização por colônia de formigas para o problema de sequenciamento de tarefas em uma única máquina com terceirização permitida
Este artigo trata do problema de sequenciamento de tarefas em um ambiente de máquina única com possibilidade de terceirização. O problema apresentado busca minimizar a soma ponderada dos custos totais de terceirização e do somatório dos tempos de finalização de cada tarefa e é definido na literatura como 1 / Budget / (1 - δ) Σ Cj + δ. OC. Para e
Gest. Prod.. Publicado em: 2013-03
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10. Otimização na alocação dinâmica de veículos no transporte rodoviário de cargas completas entre terminais
The domain of logistics is concerned with providing customers with the right product in the right place at the right time. In our modern economy, the faster pace and wider scope of logistic operations has led to complex management problems that have drawn the attention of both industry and the academic world Optimizing the number of vehicles for a determined
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2012
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11. MAV-AODV - UM PROTOCOLO MULTICAST BASEADO EM COLÔNIAS DE FORMIGAS PARA REDES AD HOC VEICULARES / MAV-AODV - A MULTICAST PROTOCOL BASED ON ANT COLONY FOR VEHICULAR AD HOC NETWORKS
Vehicular Ad Hoc Networks (VANETs) são redes que confiam nos próprios veículos para fornecerem sistemas de prevenção de acidentes e entretenimento para os passageiros dos veículos. Tais redes possuem características bem peculiares como restrições de mobilidade e alta velocidade dos nós. Neste trabalho, analisamos a eficiência do MAODV, um bem conh
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/03/2012
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12. O problema do caixeiro viajante alugador : um estudo algorítmico
O Problema do Caixeiro Alugador (CaRS) é uma variante ainda não descrita na literatura do clássico Problema do Caixeiro Viajante onde o tradicional tour de visitas do caixeiro pode ser decomposto em caminhos contíguos e que podem ser realizados em diferentes carros alugados. O problema consiste em determinar o ciclo hamiltoniano que resulte em um custo f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2011