Results 31 to 40 of about 13,840,373 (231)
Robust Adaptive Integral Backstepping Control of a 3-DOF Helicopter
International Journal of Advanced Robotic Systems, 2012 Unmanned aerial vehicles have enormous potential applications in military and civil fields. A Quanser's 3-DOF helicopter is a simplified and benchmark experimental model for validating the effectiveness of various flight control algorithms.
Zheng Fang, Weinan Gao, Lei Zhang
doaj +1 more source
American Journal of Community Psychology, EarlyView.Abstract Evaluations of community‐engaged research (CEnR) typically emphasize health outcomes rather than the partnership processes that contribute to intervention effectiveness. This scoping review synthesized community partner‐identified strategies for successful community‐academic health research partnerships with Black American communities and ...
Kaylyn A. Garcia +6 more
wiley +1 more source
Research on stability of helicopter ground steering motion based on bifurcation analysis method
Hangkong gongcheng jinzhan, 2020 Heavy helicopters are prone to serious accidents such as rushing out of the runway or oversteering due to factors such as high center of gravity and short track when taxiing on the ground.
WANG Jiawei +5 more
doaj +1 more source
Photothermal bubble: Dynamics, manipulation, and applications
Droplet, EarlyView.As a versatile platform for bubble manipulation, photothermal techniques empower diverse operations: planar translation by scanning the laser spot, sustained periodic bouncing from competing thermal and hydrodynamic flows, and even guided 3D trajectories achieved by tailoring the heating configuration.
Man Hu, Feng Wang, Daosheng Deng
wiley +1 more source
Experimental Investigation of Helicopter Noise While Approaching an Elevated Helipad
Aerospace, 2023 The present paper describes a test campaign performed to investigate the noise footprint emitted by a helicopter in an idealised urban context, reproducing the approach to an elevated helipad.
Giuseppe Gibertini +3 more
doaj +1 more source
Journal of Adolescence, EarlyView.ABSTRACT Introduction Research collecting data from parents has found that helicopter parenting (HP) and overprotective parenting (OP) of their adolescents can be reformed to identify two features: demanding and responsive overparenting (Ryan et al. 2024).
Melanie J. Zimmer‐Gembeck +4 more
wiley +1 more source
The effect of helicopter configuration on the fluid dynamics of brownout [PDF]
, 2008 Brown’s Vorticity Transport Model, coupled to an additional particle transport model, is used to simulate the development of the dust cloud that can form around a helicopter when operating in dusty or desert conditions.
Brown, R.E. +3 more
core +6 more sources
Time domain System Identification of Longitudinal Dynamics of Single Rotor Model Helicopter using SIDPAC [PDF]
Mehran University Research Journal of Engineering and Technology, 2015 This paper presents a time-domain approach for identification of longitudinal dynamics of single rotor model helicopter. A frequency sweep excitation input signal is applied for hover flying mode widely used for space state linearized model.
Arbab Nighat Khizer +2 more
doaj
Journal of Clinical Ultrasound, Volume 53, Issue 3, Page 547-561, March/April 2025.For patients to benefit from abdominal point‐of‐care ultrasound, the ultrasound examinator must be sufficiently trained. In this systematic review, we identified advantages and disadvantages of different training methods and approaches. We conclude that thoughtful integration of the various educational methods is crucial for stakeholders and educators.
Birkir Örn Sveinsson +5 more
wiley +1 more source
The Journal of Wildlife Management, EarlyView.We used GPS video camera collar data from barren‐ground caribou in the Porcupine and Western Arctic herds to validate antler‐ and movement‐based methods for estimating annual reproductive metrics. Antler retention was highly accurate for estimating parturition, but the movement methods we tested performed marginally for estimating parturition and ...
Heather E. Johnson +6 more
wiley +1 more source