Results 61 to 70 of about 6,453,912 (199)

Central star formation and metallicity in CALIFA interacting galaxies

, 2015
We use optical integral-field spectroscopic (IFS) data from 103 nearby galaxies at different stages of the merging event, from close pairs to merger remnants provided by the CALIFA survey, to study the impact of the interaction in the specific star ...
B. García-Lorenzo, B. Husemann, C. J. Walcher, C. Kehrig, collaboration the CALIFA, D. Mast, F. F. Rosales-Ortega, G. van de Ven, I. Márquez, J. Falcón-Barroso, J. Iglesias-Páramo, J. K. Barrera-Ballesteros, J. M. Vilchez, L. Galbany, M. A. Pérez-Torres, R. A. Marino, R. García-Benito, S. F. Sánchez, Á. R. López-Sánchez   +18 more
core   +2 more sources

A qualitative look at bed net access and use in Burkina Faso, Mozambique, Nigeria, and Rwanda following piloted distributions of dual-active ingredient insecticide-treated nets

Malaria Journal
Background Universal coverage with insecticide-treated nets (ITNs) is important for malaria control and elimination. The emergence and intensification of insecticide resistance threatens progress made through the deployment of these interventions and has
Jenny Shannon, Moubassira Kagone, Baltazar Candrinho, Sylvanus Otikwu, Chantal Ingabire, Adama Gansane, Samy Pooda, Fofana Aboubacar, Fatou Ouattara, Binete Savaio, Celestino Joanguete, Lucio Sixpence, Hannah Koenker, Perpetua Uhomoibhi, Okefu Oyale Okoko, Onoja Ali, Dele Babarinde, Janet Ogundairo, Ayorinde Samuel Lemah, Aimable Mbituyumuremyi, Joseph H. Singirankabo, Nami Kawakyu, Federica Guglielmo, Christen Fornadel, Kyra Arnett, Joe Wagman, Christelle Gogue, Kenzie Tynuv, Peder Digre, Julia Mwesigwa, Molly Robertson   +30 more
doaj   +1 more source

Obstacle avoidance and formation control of multiple unmanned vehicles in complex environments based on artificial potential field method

工程科学学报
Addressing the increasing complexity of tasks, single unmanned vehicles have become unable to meet actual operational requirements, prompting a shift toward multivehicle formation systems.
Yilin MEI, Likun CUI, Xueyan HU, Guangqi HU, Hao WANG   +4 more
doaj   +1 more source

Distributed safe formation tracking control of multiquadcopter systems using barrier Lyapunov function

Frontiers in Robotics and AI
Coordinating the movements of a robotic fleet using consensus-based techniques is an important problem in achieving the desired goal of a specific task.
Nargess Sadeghzadeh-Nokhodberiz, Mohammad Reza Sadeghi, Rohollah Barzamini, Allahyar Montazeri   +3 more
doaj   +1 more source

Pose consensus based on dual quaternion algebra with application to decentralized formation control of mobile manipulators

, 2019
This paper presents a solution based on dual quaternion algebra to the general problem of pose (i.e., position and orientation) consensus for systems composed of multiple rigid-bodies.
Adorno, Bruno V., Pimenta, Luciano C. A., Savino, Heitor J., Shah, Julie A.   +3 more
core   +1 more source

Consensus-Based Formation Control for Heterogeneous Multi-Agent Systems in Complex Environments

Drones
The purpose of this paper is to develop formation control strategies for heterogeneous multi-intelligent-agent systems in complex environments, with the goal of enhancing their performance, reliability, and stability.
Xiaofei Chang, Yiming Yang, Zhuo Zhang, Jiayue Jiao, Haoyu Cheng, Wenxing Fu   +5 more
doaj   +1 more source

Distributed control design for formation control of double integrator mutli-agent systems based on graph rigidity [PDF]

JES: Journal of Engineering Sciences
This paper addresses the challenge of controlling the formation of multi-agent system based only on the relative distances between agents obtained individually by local sensors mounted on each autonomous agent in the system.
khalil Ibrahim, Peter Gaber, Mahmoud Othman   +2 more
doaj   +1 more source

Formation Control of Autonomous Underwater Vehicles Using an Improved Nonlinear Backstepping Method

Journal of Marine Science and Engineering
The characteristics of autonomous underwater vehicles include nonlinearity, strong coupling, multiple inputs and multiple outputs, uncertainty, strong disturbance, underdrive, and multiple constraints.
Gang Shao, Lei Wan, Huixi Xu
doaj   +1 more source

Formation Control of Multiple Unmanned Aerial Vehicles by Event-Triggered Distributed Model Predictive Control

IEEE Access, 2018
This paper proposes an event-triggered model predictive control (MPC) scheme for the formation control of multiple unmanned aerial vehicles (UAVs). A distributed MPC framework is designed in which each UAV only shares the information with its neighbors ...
Zhihao Cai, Hui Zhou, Jiang Zhao, Kun Wu, Yingxun Wang   +4 more
doaj   +1 more source

Ionisation-induced star formation II: External irradiation of a turbulent molecular cloud

, 2007
In this paper, we examine numerically the difference between triggered and revealed star formation. We present Smoothed Particle Hydrodynamics (SPH) simulations of the impact on a turbulent 10^4 solar-mass molecular cloud of irradiation by an external ...
Bonnell], I. A., Clark, P. C., Dale, J. E.   +2 more
core   +2 more sources