Results 101 to 110 of about 21,978 (259)

Habitat use and diel activity of insectivorous bats across land‐cover types on an Afrotropical oceanic island

open access: yesConservation Science and Practice, EarlyView.
Using acoustic surveys, we investigated habitat use and diel activity patterns of insectivorous bats across the main land‐use types of the endemic‐rich Príncipe Island, in Central West Africa. We sampled bat activity at 48 sites spanning old‐growth forests, secondary regrowth forests, shaded cocoa plantations, and horticultural areas.
Ana Filipa Palmeirim   +8 more
wiley   +1 more source

Autonomous Vehicle Ultrasonic Sensor Vulnerability and Impact Assessment [PDF]

open access: yes, 2018
Vehicles today are relying more on technologies to bring about fully autonomous features. The conventional wirings within are being simplified into a network of electronic components, and this network is controlled via advanced sensing of the environment
Keoh, Sye Loong   +2 more
core   +1 more source

Guessing at Ghosts in the Machine

open access: yesRatio, EarlyView.
ABSTRACT As AI grows ever more complex and ubiquitous, its moral status becomes increasingly pressing. But knowing whether an AI has moral status is only part of the ethical puzzle. To determine how we ought to treat such entities, we must know not only whether AIs have moral status, but also about the content of their interests—what contributes to ...
Helen Yetter‐Chappell
wiley   +1 more source

Kalman Filter for Noise Reduction in Aerial Vehicles using Echoic Flow [PDF]

open access: yes, 2020
Echolocation is a natural phenomenon observed in bats that allows them to navigate complex, dim environments with enough precision to capture insects in midair.
Palo, Andrew
core  

Modelling the effect of varying metabolic rate and cardiac output on estimated tissue and blood O2 and CO2 levels in an extreme deep‐diver, the goose‐beaked whale (Ziphius cavirostris)

open access: yesExperimental Physiology, EarlyView.
Abstract High‐resolution movement data from Cuvier's beaked, or goose‐beaked whale (Ziphius cavirostris, hereafter Ziphius, n = 8) tag deployments (4.1–19.2 days) were used to estimate blood and tissue O2 and CO2 levels. Acceleration and magnetometry data were used to estimate the locomotion cost (LC) from the relationship between activity and the O2 ...
Andreas Fahlman   +8 more
wiley   +1 more source

Ranging in human sonar: effects of additional early reflections and exploratory head movements.

open access: yesPLoS ONE, 2014
Many blind people rely on echoes from self-produced sounds to assess their environment. It has been shown that human subjects can use echolocation for directional localization and orientation in a room, but echo-acoustic distance perception--e.g.
Ludwig Wallmeier, Lutz Wiegrebe
doaj   +1 more source

Improved YOLOv5 for Efficient Elimination of Unwanted Video Frames From High‐Speed Video Arrays Capturing Bat's Kinematics

open access: yesApplied AI Letters, Volume 7, Issue 1, February 2026.
Deep learning pipeline developed to filter high‐speed bat flight recordings captured inside a custom flight tunnel. ABSTRACT This research aims to investigate the flying kinematics of bats, drawing inspiration from nature to benefit humans in achieving vision‐independent flights. The project uses 50 cameras mounted inside a specially designed tunnel to
D. P. Jayathunga   +4 more
wiley   +1 more source

From Understory to Canopy: In situ Behavior of Neotropical Forest Katydids in Response to Bat Echolocation Calls

open access: yesFrontiers in Ecology and Evolution, 2018
Predator-prey interactions take place in complex environments, and research on the sensory ecology of predator-detection relies on understanding when, where, and how prey experience and respond to predator cues.
Laurel B. Symes   +6 more
doaj   +1 more source

Echolocation by Quasiparticles

open access: yes, 2009
It is shown that the local density of states (LDOS), measured in an Scanning Tunneling Microscopy (STM) experiment, at a single tip position contains oscillations as a function of Energy, due to quasiparticle interference, which is related to the ...
C. L. Henley   +5 more
core   +1 more source

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