Results 61 to 70 of about 487,508 (331)

Lagrangian-based Hydrodynamic Model: Freeway Traffic Estimation [PDF]

open access: yes, 2012
This paper is concerned with highway traffic estimation using traffic sensing data, in a Lagrangian-based modeling framework. We consider the Lighthill-Whitham-Richards (LWR) model (Lighthill and Whitham, 1955; Richards, 1956) in Lagrangian-coordinates ...
Friesz, Terry L., Han, Ke, Yao, Tao
core  

Conic lagrangian singularities

open access: yesTopology and its Applications, 1998
By definition, a complex analytic manifold is called conic if it is endowed with a proper free \({\mathbb C}^\ast\)-action. A conic map is a \({\mathbb C}^\ast\)-equivariant map of conic manifolds. Modifying considerations of [\textit{V. I. Arnold}, \textit{S. M. Gusejn-Zade} and \textit{A. N. Varchenko}, `Singularities of differentiable maps.
Adams, M.   +3 more
openaire   +2 more sources

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Regular Lagrangians are smooth Lagrangians

open access: yesJournal of the Mathematical Society of Japan
We prove that for any element in the $γ$-completion of the space of smooth compact exact Lagrangian submanifolds of a cotangent bundle, if its $γ$-support is a smooth Lagrangian submanifold, then the element itself is a smooth Lagrangian. We also prove that if the $γ$-support of an element in the completion is compact, then it is connected.
Asano, Tomohiro   +3 more
openaire   +2 more sources

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

open access: yesAdvanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello   +7 more
wiley   +1 more source

BRST-BV approach to continuous-spin field

open access: yesPhysics Letters B, 2018
Using BRST-BV approach, massless and massive continuous-spin fields propagating in the flat space are studied. For such fields, BRST-BV gauge invariant Lagrangian is obtained.
R.R. Metsaev
doaj   +1 more source

Numerical study on the hot compression test for bulk metal forming application

open access: yesSN Applied Sciences, 2022
Article highlights Cylindrical compression test is modeled by finite element method and compared with experimental results. The Lagrangian and the Arbitrary Lagrangian–Eulerian (ALE) approaches are used to model the experiments.
Diego Gomez-Marquez   +5 more
doaj   +1 more source

Effects of Vacuum Polarization in Strong Magnetic Fields with an Allowance Made for the Anomalous Magnetic Moments of Particles

open access: yes, 2004
Given the anomalous magnetic moments of electrons and positrons in the one-loop approximation, we calculate the exact Lagrangian of an intense constant magnetic field that replaces the Heisenberg-Euler Lagrangian in traditional quantum electrodynamics ...
A. B. Migdal   +21 more
core   +2 more sources

Graded lagrangian submanifolds [PDF]

open access: yesBulletin de la Société mathématique de France, 2000
LaTex2e, 32 pages, one eps ...
openaire   +3 more sources

Data‐Driven Bulldozer Blade Control for Autonomous Terrain Leveling

open access: yesAdvanced Robotics Research, EarlyView.
A simulation‐driven framework for autonomous bulldozer leveling is presented, combining high‐fidelity terramechanics simulation with a neural‐network‐based reduced‐order model. Gradient‐based optimization enables efficient, low‐level blade control that balances leveling quality and operation time.
Harry Zhang   +5 more
wiley   +1 more source

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