Results 31 to 40 of about 7,220 (151)
Three-dimensional simulation for fast forward flight of a calliope hummingbird [PDF]
, 2016 We present a computational study of flapping-wing aerodynamics of a calliope hummingbird (Selasphorus calliope) during fast forward flight. Three-dimensional wing kinematics were incorporated into the model by extracting time-dependent wing position from
Alexander DE +21 more
core +3 more sources
Three-Dimensional Kinematics of Hummingbird Flight [PDF]
, 2007 Hummingbirds are specialized for hovering flight, and substantial research has explored this behavior. Forward flight is also important to hummingbirds, but the manner in which they perform forward flight is not well documented.
Biewener, Andrew A +6 more
core +3 more sources
Adversarial Robustness: Softmax versus Openmax
, 2017 Deep neural networks (DNNs) provide state-of-the-art results on various tasks and are widely used in real world applications. However, it was discovered that machine learning models, including the best performing DNNs, suffer from a fundamental problem ...
Boult, Terrance E. +2 more
core +1 more source
An investigation into the detection of latent marks on the feathers and eggs of birds of prey [PDF]
, 2014 There are numerous enhancement techniques (physical and chemical) which have been developed for the successful visualisation of latent fingermarks. Nonetheless, problems arise when latent fingermarks require enhancement on difficult surfaces such as ...
Farrugia, Kevin J. +2 more
core +4 more sources
The influence of floral traits on specialisation and modularity of plant-pollinator networks in a biodiversity hotspot in the Peruvian Andes [PDF]
, 2016 Background and Aims: Modularity is a ubiquitous and important structural property of ecological networks which describes the relative strengths of sets of interacting species and gives insights into the dynamics of ecological communities.
Dormann, Carsten F +3 more
core +1 more source
Advanced Intelligent Systems, EarlyView.A thorough analysis of event‐based vision for flapping‐wing robots is presented, with emphasis on hardware integration, suitability under challenging flight conditions, and real‐time performance. Theoretical and experimental studies demonstrate how these sensors enable robust and efficient onboard perception for ornithopters, thereby advancing autonomy
Raul Tapia +5 more
wiley +1 more source
COORDINATION OF LEADER-FOLLOWER MULTI-AGENT SYSTEM WITH TIME-VARYING OBJECTIVE FUNCTION [PDF]
, 2017 This thesis aims to introduce a new framework for the distributed control of multi-agent systems with adjustable swarm control objectives. Our goal is twofold: 1) to provide an overview to how time-varying objectives in the control of autonomous systems ...
Fabian, Zalan Mark
core +1 more source
Forager bees (Apis mellifera) highly express immune and detoxification genes in tissues associated with nectar processing. [PDF]
, 2015 Pollinators, including honey bees, routinely encounter potentially harmful microorganisms and phytochemicals during foraging. However, the mechanisms by which honey bees manage these potential threats are poorly understood.
Johnson, Brian R +2 more
core +1 more source
Bedside Assessment of Downgaze Limit by Amplitude
Movement Disorders Clinical Practice, EarlyView.Abstract Background Bedside assessment of downgaze palsy could be difficult, due to the lack of a marker to differentiate normal from palsy, which could delay the diagnosis of progressive supranuclear palsy (PSP). Amplitude based bedside assessment using the intercanthal line as a marker was reported to easily identify, quantify, and record downgaze ...
Tao Xie +6 more
wiley +1 more source
Preschoolers' Scientific Curiosity and Inquiry Capabilities: An Ecological Research Approach
Journal of Research in Science Teaching, EarlyView.ABSTRACT Existing tools for measuring scientific curiosity often fail to capture its multifaceted, dynamic nature—particularly in early childhood, where behaviors are context‐dependent, non‐verbal, and emergent. These challenges limit our ability to understand and support young children's scientific engagement.
Yael Kesner Baruch +2 more
wiley +1 more source