Results 31 to 40 of about 476,472 (303)
Surface Tension dominates Insect Flight on Fluid Interfaces
, 2016 Flight on the two-dimensional air-water interface, with body weight supported by surface tension, is a unique locomotion strategy well adapted for the environmental niche on the surface of water.
Bardon, Thibaut C +3 more
core +1 more source
An Adaptive Command Scaling Method for Incremental Flight Control Allocation
ActuatorsModern aircraft usually employ control allocation to distribute virtual control commands among redundant effectors. Infeasible virtual command can occur frequently due to aggressive maneuvers and limited control authority.
Zhidong Lu +3 more
doaj +1 more source
Proceedings, 2018 This paper presents an approach to model a ski jumper as a multi-body system for an optimal control application. The modeling is based on the constrained Newton-Euler-Equations.
Patrick Piprek +6 more
doaj +1 more source
Situational Awareness and Problems of Its Formation in the Tasks of UAV Behavior Control
Applied Sciences, 2021 Situational awareness formation is one of the most critical elements in solving the problem of UAV behavior control. It aims to provide information support for UAV behavior control according to its objectives and tasks to be completed.
Dmitry M. Igonin +2 more
doaj +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
Online Deterministic 3D Trajectory Generation for Electric Vertical Take-Off and Landing Aircraft
AerospaceThe use of non-piloted eVTOL aircraft in non-segregated airspace requires reliable and deterministic automatic flight guidance systems for the aircraft to remain predictable to all the users of the airspace and maintain a high level of safety.
Zoe Mbikayi +6 more
doaj +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
J_2 Dynamics and Formation Flight [PDF]
, 2001 We study the dynamics of the relative motion of satellites in the gravitational field of the Earth, including the effects of the bulge of the Earth (the J_2 effect).
Koon, Wang Sang +3 more
core
Impact of the ozone monitoring instrument row anomaly on the long-term record of aerosol products [PDF]
Atmospheric Measurement Techniques, 2018 Since about three years after the launch the Ozone Monitoring Instrument (OMI) on the EOS-Aura satellite, the sensor's viewing capability has been affected by what is believed to be an internal obstruction that has reduced OMI's spatial coverage.
O. Torres +5 more
doaj +1 more source
IEEE Access, 2022 A novel entry guidance command generation (EGCG) method for hypersonic glide vehicles (HGVs) is proposed in this paper. Apart from the conventional path constraints, terminal constraints, and multiple stationary geographic constraints, the method takes ...
Ziyao Wang, Shengjing Tang, Jie Guo
doaj +1 more source