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Related papers: Model Driven Ramp Control at RHIC

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We present an algorithm which combines recent advances in model based path integral control with machine learning approaches to learning forward dynamics models. We take advantage of the parallel computing power of a GPU to quickly take a…

Robotics · Computer Science 2015-03-03 Grady Williams , Eric Rombokas , Tom Daniel

In contrast to quadruped robots that can navigate diverse terrains using a "blind" policy, humanoid robots require accurate perception for stable locomotion due to their high degrees of freedom and inherently unstable morphology. However,…

Robotics · Computer Science 2024-11-22 Junfeng Long , Junli Ren , Moji Shi , Zirui Wang , Tao Huang , Ping Luo , Jiangmiao Pang

Resistive Random Access Memories (RRAMs) are being studied by the industry and academia because it is widely accepted that they are promising candidates for the next generation of high density nonvolatile memories. Taking into account the…

Robust dynamic interactions are required to move robots in daily environments alongside humans. Optimisation and learning methods have been used to mimic and reproduce human movements. However, they are often not robust and their…

Robotics · Computer Science 2022-07-14 Carlo Tiseo , Quentin Rouxel , Zhibin Li , Michael Mistry

Learning from Demonstrations (LfD) and Reinforcement Learning (RL) have enabled robot agents to accomplish complex tasks. Reward Machines (RMs) enhance RL's capability to train policies over extended time horizons by structuring high-level…

Robotics · Computer Science 2024-12-16 Mattijs Baert , Sam Leroux , Pieter Simoens

Dynamic movement primitives (DMPs) allow complex position trajectories to be efficiently demonstrated to a robot. In contact-rich tasks, where position trajectories alone may not be safe or robust over variation in contact geometry, DMPs…

Robotics · Computer Science 2022-03-22 Chunyang Chang , Kevin Haninger , Yunlei Shi , Chengjie Yuan , Zhaopeng Chen , Jianwei Zhang

The Multi Module Model for Ultra-Relativistic Heavy Ion Collisions at RHIC and LHC energies is presented. It uses the Effective String Rope Model for the calculation of the initial stages of the reaction; the output of this model is used as…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. K. Magas , L. P. Csernai , D. Strottman

Self-consistent simulations of neoclassical and electrostatic turbulent transport in a DIII-D H-mode edge plasma under resonant magnetic perturbations (RMPs) have been performed using the global total-f gyrokinetic particle-in-cell code…

Plasma Physics · Physics 2020-07-15 Robert Hager , C. S. Chang , N. M. Ferraro , R. Nazikian

The low-beta magnet systems are located in the Large Hadron Collider (LHC) insertion regions around the four interaction points. They are the key elements in the beams focusing/defocusing process allowing proton collisions at luminosity up…

Accelerator Physics · Physics 2012-08-30 C. Darve , C. Balle , J. Casas-Cubillos , A. Perin , N. Vauthier

We consider Ramp Metering (RM) at the microscopic level subject to vehicle following safety constraints for a freeway with arbitrary number of on- and off-ramps. The arrival times of vehicles to the on-ramps, as well as their destinations…

Probability · Mathematics 2023-06-21 Milad Pooladsanj , Ketan Savla , Petros A. Ioannou

We demonstrate high prediction accuracy of three important properties that determine the initial geometry of the heavy-ion collision (HIC) experiments by using supervised Machine Learning (ML) methods. These properties are the impact…

High Energy Physics - Phenomenology · Physics 2022-11-23 Abhisek Saha , Debasis Dan , Soma Sanyal

We present an online model-based reinforcement learning algorithm suitable for controlling complex robotic systems directly in the real world. Unlike prevailing sim-to-real pipelines that rely on extensive offline simulation and model-free…

Robotics · Computer Science 2026-05-07 Fang Nan , Hao Ma , Qinghua Guan , Josie Hughes , Michael Muehlebach , Marco Hutter

We study the elliptic flow systematically from SIS to RHIC energies in a realistic dynamical cascade model. We compile our results with the recent data from STAR and PHOBOS experiments on elliptic flow of charged particles in Au + Au…

Nuclear Theory · Physics 2007-05-23 P. K. Sahu , N. Otuka , A. Ohnishi

The possible use of spin and magnets in place of charge and capacitors to store and process information is well known. Magnetic tunnel junctions are being widely investigated and developed for magnetic random access memories. These are two…

Mesoscale and Nanoscale Physics · Physics 2014-11-26 Behtash Behin-Aein , Jian-Ping Wang , Roland Wiesendanger

Three-dimensional (3D) finite-element simulations of cardiovascular flows provide high-fidelity predictions to support cardiovascular medicine, but their high computational cost limits clinical practicality. Reduced-order models (ROMs)…

Computational Engineering, Finance, and Science · Computer Science 2025-09-01 Natalia L. Rubio , Eric F. Darve , Alison L. Marsden

Hadron collisions at the LHC offer a unique opportunity to study strong interactions. The exciting data collected by the four RHIC experiments suggest that in heavy-ion collisions at sqrt(s_NN) = 200 GeV, an equilibrated, strongly-coupled…

Nuclear Experiment · Physics 2007-05-23 Christof Roland

We demonstrate an ion shuttling technique for high-resolution control of atom-ion collision energy by translating an ion held within a radio-frequency trap through a magneto-optical atom trap. The technique is demonstrated both…

Atomic Physics · Physics 2018-08-24 Prateek Puri , Michael Mills , Elizabeth P. West , Christian Schneider , Eric. R. Hudson

Effects of partonic interactions in heavy ion collisions at RHIC are studied in a multiphase transport model (AMPT) that includes both initial partonic and final hadronic interactions.It is found that a large parton scattering cross section…

Nuclear Theory · Physics 2009-11-07 C. M. Ko , Z. W. Lin , S. Pal

A hydrodynamic + cascade model of relativistic heavy ion collisions is presented and compared to available hadronic data from the SPS to RHIC. The model consistently reproduces the radial and elliptic flow data for different particles,…

Nuclear Theory · Physics 2021-08-12 D. Teaney , J. Lauret , E. V. Shuryak

Results are presented from the ATLAS collaboration from the 2010 LHC heavy ion run, during which nearly 10 inverse microbarns of luminosity were delivered. Soft physics results include final charged particle multiplicities and collective…

Nuclear Experiment · Physics 2011-10-18 P. Steinberg , ATLAS Collaboration