نتایج جستجو برای: dragonfly algorithm

تعداد نتایج: 754790  

Journal: :Global change biology 2015
Arnaud Sentis Julie Morisson David S Boukal

Global change affects individual phenotypes and biotic interactions, which can have cascading effects up to the ecosystem level. However, the role of environmentally induced phenotypic plasticity in species interactions is poorly understood, leaving a substantial gap in our knowledge of the impacts of global change on ecosystems. Using a cladoceran-dragonfly system, we experimentally investigat...

2018
Thomas J Hossie Shawn MacFarlane Amy Clement Dennis L Murray

Intraspecific aggression represents a major source of mortality for many animals and is often experienced alongside the threat of predation. The presence of predators can strongly influence ecological systems both directly by consuming prey and indirectly by altering prey behavior or habitat use. As such, the threat of attack by higher level predators may strongly influence agonistic interactio...

Journal: :Computer Science Education 2013
Mark Claypool

Computer game development has been shown to be an effective hook for motivating students to learn both introductory and advanced computer science topics. While games can be made from scratch, to simplify the programming required game development often uses game engines that handle complicated or frequently used components of the game. These game engines present the opportunity to strengthen pro...

Journal: :The Journal of experimental biology 1998
Harrison Lighton

Insect flight metabolism is completely aerobic, and insect resting metabolism is quite insensitive to atmospheric oxygen level, suggesting a large safety margin in the capacity of the tracheal system to deliver oxygen during flight. We tested the sensitivity of flight initiation and metabolism to atmospheric oxygen level in the libellulid dragonfly Erythemis (Mesothemis) simplicicollis using fl...

Journal: :International Journal of Advanced Computer Science and Applications 2023

The current intelligent evaluation methods for English teaching quality are inefficient and have poor accuracy effective assessment. paper suggests an model based on upgraded Back Propagation Neural Network to overcome the aforementioned issues. First, principal component analysis is utilized lessen dimensionality of index system as we build with reference results existing study. Then, adopt a ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی (نوشیروانی) بابل - دانشکده مهندسی مکانیک 1389

due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...

Journal: :Proceedings of the Zoological Society of London 2009

2017
Tammy M Duong Ann B Gomez Thomas N Sherratt

Aposematism is an evolved, cross-species association between a preys' unprofitability and the presence of conspicuous signals. Avian predators have been widely employed to understand the evolution of these warning signals However, insect predators are abundant, diverse, and highly visual foragers that have been shown to be capable of learned aversion. Therefore, it is likely that their behaviou...

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