Results 81 to 90 of about 358,967 (299)

Texture dependence of motion sensing and free flight behavior in blowflies [PDF]

, 2013
Lindemann JP, Egelhaaf M. Texture dependence of motion sensing and free flight behavior in blowflies. Frontiers in Behavioral Neuroscience. 2013;6:92.Many flying insects exhibit an active flight and gaze strategy: purely translational flight segments ...
Egelhaaf, Martin , Lindemann, Jens Peter   +1 more
core   +2 more sources

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Performance of a quasi-steady model for hovering hummingbirds

Theoretical and Applied Mechanics Letters, 2015
A quasi-steady model describing aerodynamics of hovering Ruby-throated hummingbirds is presented to study extent of the low-order model in representing the flow physics of the bird and also to separately quantify the forces from the translational ...
Jialei Song, Haoxiang Luo, Tyson L. Hedrick   +2 more
doaj   +1 more source

Realistic modeling of bird flight animations [PDF]

ACM Transactions on Graphics, 2003
In this paper we describe a physics-based method for synthesis of bird flight animations. Our method computes a realistic set of wingbeats that enables a bird to follow the specified trajectory. We model the bird as an articulated skeleton with elastically deformable feathers.
Jia-chi Wu, Zoran Popović
openaire   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

An overview of a Lagrangian method for analysis of animal wake dynamics [PDF]

, 2008
The fluid dynamic analysis of animal wakes is becoming increasingly popular in studies of animal swimming and flying, due in part to the development of quantitative flow visualization techniques such as digital particle imaging velocimetry (DPIV).
Dabiri, John O., Peng, Jifeng
core   +1 more source

SUSPENDED ANIMATION FOR DEEP SPACE FLIGHT

ASEAN Journal of Psychiatry
The discovery of extrasolar planets as well as the growing number of earth-like exoplanets being detected almost routinely, is galvanizing the interest of the public and space agencies alike to plan for exploratory missions to potentially habitable exoplanets. For manned interstellar space flight, ultralow subzero suspended animation strategies will be
Mauricio, Girard, Daniel, Barranco, Martina, Canatelli-Mallat, Camila D., Pasquini, José L., Cordeiro, Rodolfo G., Goya   +5 more
openaire   +2 more sources

Deterministic Detection of Single Ion Implantation

Advanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead, Lok Kan Wan, Maddison Coke, Janet Jacobs, Nicholas F. L. Collins, Mark C. Rosamond, Richard J. Curry   +6 more
wiley   +1 more source

On the move: Influence of animal movements on count error during drone surveys

Ecology and Evolution
The use of remote sensing to monitor animal populations has greatly expanded during the last decade. Drones (i.e., Unoccupied Aircraft Systems or UAS) provide a cost‐ and time‐efficient remote sensing option to survey animals in various landscapes and ...
Emma A. Schultz, Natasha Ellison‐Neary, Melanie R. Boudreau, Garrett M. Street, Landon R. Jones, Kristine O. Evans, Raymond B. Iglay   +6 more
doaj   +1 more source

The value of a mouthful: Flight initiation distance as an opportunity cost [PDF]

, 2015
Flight initiation distance of animals when approached by a potential predator reflects the risk that an individual is willing to take when the individual has to gauge the value of staying put relative to the cost of flight.
Møller, Anders Pape
core   +3 more sources