Results 71 to 80 of about 589,125 (300)

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Effects of climate variation on bird escape distances modulate community responses to global change

Scientific Reports, 2021
Climate and land use are rapidly changing environmental conditions. Behavioral responses to such global perturbations can be used to incorporate interspecific interactions into predictive models of population responses to global change. Flight initiation
M. Díaz, T. Grim, G. Markó, F. Morelli, J. D. Ibáñez-Alamo, J. Jokimäki, M.-L. Kaisanlahti-Jokimäki, K. Tätte, P. Tryjanowski, A. P. Møller   +9 more
doaj   +1 more source

Laterality and flight: concurrent tests of side-bias and optimality in flying tree swallows. [PDF]

PLoS ONE, 2008
Behavioural side-bias occurs in many vertebrates, including birds as a result of hemispheric specialization and can be advantageous by improving response times to sudden stimuli and efficiency in multi-tasking.
James T Mandel, John M Ratcliffe, David J Cerasale, David W Winkler   +3 more
doaj   +1 more source

Time-of-Flight Roton Spectroscopy in Dipolar Bose-Einstein Condensates

, 2013
Dipolar Bose-Einstein condensates may present a rotonlike dispersion minimum, which has yet to be observed in experiments. We discuss a simple method to reveal roton excitations, based on the response of quasi-two-dimensional dipolar condensates against ...
Jona-Lasinio, M., Santos, L., Łakomy, K.   +2 more
core   +1 more source

Interplay Between Phase Evolution, Fe Migration, and Oxygen Redox in O3‐Type NaxFeyMn1−yO2 Cathodes

Advanced Functional Materials, EarlyView.
Why do Na‐ion battery cathodes, that are compositionally closely related, follow different structural paths during battery operation? This work shows how Fe content controls when iron atoms migrate from their original sites. Early migration locks the layers and blocks key phase transitions, whereas delayed migration permits fuller structural ...
Morten Johansen, Maria Schou Hansen, Josephine Dunker, Rebekka Klemmt, Dorthe B. Ravnsbæk   +4 more
wiley   +1 more source

A Two-Stage Co-Evolution Multi-Objective Evolutionary Algorithm for UAV Trajectory Planning

Applied Sciences
With the increasing complexity of unmanned aerial vehicle (UAV) missions, single-objective optimization for UAV trajectory planning proves inadequate in handling multiple conflicting objectives.
Gang Huang, Min Hu, Xueying Yang, Yijun Wang, Peng Lin   +4 more
doaj   +1 more source

Aeromedical retrieval of trauma patients: Impact of flight path model on estimates of population coverage

The American Journal of Surgery, 2020
The aim of this study was to compare the impact of different flight path models on the calculated population coverage of aeromedical retrieval systems, using the state of Alabama as a case study.Geospatial analysis of U.S. Census Bureau population data using helicopter bases and trauma centers as foci of either circular or elliptical coverage areas ...
K. Lorraine Stone, W. Andrew Smedley, John Killian, Shannon W. Stephens, Russell L. Griffin, Daniel B. Cox, Jeffrey D. Kerby, Jan O. Jansen   +7 more
openaire   +3 more sources

Lévy flight movements prevent extinctions and maximize population abundances in fragile Lotka–Volterra systems [PDF]

Proceedings of the National Academy of Sciences, 2018
Significance The ubiquity of scale-free mobility in nature, as observed in systems ranging from microorganisms to fishing boats, has stimulated a number of foraging theories and individual-based random search models. Here, we unveil an essential yet unexplored property of multiple-scale motion, which relates to the stability of entire ...
Dannemann, Teodoro, Boyer, Denis, Miramontes, Octavio   +2 more
openaire   +4 more sources

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

Migratory flight of insect pests within a year-round distribution: European corn borer as a case study

Journal of Integrative Agriculture, 2018
Insect migratory flight differs fundamentally from most other kinds of flight behavior, in that it is non-appetitive. The adult is not searching for anything, and migratory flight is not terminated by encounters with potential resources.
Thomas W. Sappington
doaj   +1 more source