Results 131 to 140 of about 2,383 (200)

Assessing the Impact of Countergradient Fluxes on the General Circulation in the Community Atmosphere Model

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Parameterizing boundary layer turbulence in Earth System Models (ESMs) introduces a key source of uncertainty. Here, we explore the impact of implementing a prognostic formulation (PMF) for momentum flux, which permits countergradient (CG) fluxes.
Kyle M. Nardi, Colin M. Zarzycki, Vincent E. Larson, Benjamin A. Stephens, George H. Bryan, Julio Bacmeister   +5 more
wiley   +1 more source

Adaptive fractional-order non-singular terminal sliding mode control for omnidirectional quadrotors based on WRBF neural network. [PDF]

PLoS One
Ma R, Gu Q, Ding L, Li Y, Sun C, Wu H.
europepmc   +1 more source

Formation of Shallow Cumulus Patterns Using a Simple Warm Cloud Precipitation Model

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract A simple model based on predator‐prey‐like dynamics using a system of four nonlinear ordinary differential equations is used to simulate the life cycle of shallow cumulus. By coupling this model across a two‐dimensional array and varying the cloud environment, we can simulate three common patterns of self‐aggregation seen in the maritime ...
Michelle K. Kanipe, Peter J. van Leeuwen, Graham Feingold   +2 more
wiley   +1 more source

Force sensorless interaction wrench estimation for neural-learning impedance control of a flying parallel robot with actuator saturation. [PDF]

Sci Rep
Zhu M, Guo Y, Gong D, Zhao Y, Chen J, Xing Y, Song S.   +6 more
europepmc   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, Volume 28, Issue 12, 17 June 2026.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

A Hierarchical PSMC-LQR Control Framework for Accurate Quadrotor Trajectory Tracking. [PDF]

Sensors (Basel)
Chen S, Zhu X, Fang Y, Zhan Y, Han D, Qiu Y, Sun Y.   +6 more
europepmc   +1 more source

Mechanisms for Meridional Propagation of Global Mesoscale Ocean Eddies Within a PV‐Based Dynamic Framework

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Mesoscale eddies are crucial for global heat and tracer transport, yet the mechanisms underlying their meridional movement remain unclear. Here, we combine satellite observations, idealized numerical experiments, and theoretical modeling to investigate these mechanisms. We demonstrate that the meridional eddy movement is strongly linked to the
Lei Chen, Guihua Wang
wiley   +1 more source

Online Estimation of Manipulator Dynamics for Computed Torque Control of Robotic Systems. [PDF]

Sensors (Basel)
Kallel H, Iqbal K.
europepmc   +1 more source

Observation‐Constrained Fossil Fuel CO2 Emissions Reveal Post‐2018 Stabilization in China

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Accurate quantification of interannual variations in China's fossil fuel CO2 (FFCO2) emissions is critical for climate policy evaluation. However, bottom‐up inventories exhibit growing discrepancies. Here, we estimate China's 2015–2023 FFCO2 emissions using the Regional multi‐Air Pollutant Assimilation System, integrating in situ observations ...
Shuzhuang Feng, Yang Shen, Fei Jiang, Mengwei Jia, Yu Mao, Hengmao Wang, Weimin Ju   +6 more
wiley   +1 more source