Results 51 to 60 of about 42,708 (298)

Dynamical friction and the evolution of satellites in virialized halos: the theory of linear response [PDF]

, 1999
The evolution of a small satellite inside a more massive truncated isothermal spherical halo is studied using both the Theory of Linear Response for dynamical friction and N-Body simulations.
Bontekoe Tj. R., Cora S. A., De Blok W. J. G., Fabio Governato, Hernquist L., Lacey C., Lucio Mayer, Monica Colpi, Navarro J. F., Navarro J. F., Navarro J. F., Prugniel P., Seguin P., Seguin P., Weinberg M. D.   +14 more
core   +3 more sources

A Self‐Healing Permanent Magnet Putty for Soft Robot Skins With Force Sensing and Functional Recovery

Advanced Robotics Research, EarlyView.
Permanent magnet putty (PMP) integrates high‐coercivity NdFeB particles with a dynamic polyborosiloxane–Ecoflex matrix, achieving rapid self‐healing (90% mechanical recovery in 10 s) and magnetic recovery within 20 min. With twice the sensitivity of commercial putties, PMP enables precise 5–30 N force detection and discrimination between pressing and ...
Ruotong Zhao, Mitsuhiro Kamezaki, Ryosuke Dobashi, Yuhiro Iwamoto, Yasushi Ido, Yoshihiro Kawahara   +5 more
wiley   +1 more source

Universal Gripper for Industrial Manipulation With Enhanced Rigid Mechanics and Self‐Adaptable Fingers

Advanced Robotics Research, EarlyView.
An enhanced universal gripper combining rigid mechanics with self‐adaptable fingers is presented for industrial automation. The novel six‐bar linkage with integrated compliant pad eliminates mechanical interference while enabling passive shape adaptation.
Muhammad Usman Khalid, Nirmal Kumar Ravikumar, Mattia Frascio, Sumanth Nagalakunta, Alessandro Seitone, Benoît Lévesque, Alessandro Zanella, Matteo Zoppi   +7 more
wiley   +1 more source

Research on Braking Force Distribution Strategy for Race Cars Based on PID Algorithm

World Electric Vehicle Journal
This study proposes a dynamic braking force distribution strategy based on a PID algorithm for Formula Student electric racing cars, addressing the limitations of fixed-ratio distribution methods in adapting to dynamic braking conditions.
Jigang Liu, Yingfeng Hua, Zhicheng Zhou, Yushuo Pan   +3 more
doaj   +1 more source

Electrostatic Instability in Electron-Positron Pairs Injected in an External Electric Field

, 2004
Motivated by the particle acceleration problem in pulsars, we numerically investigate electrostatic instability of electron-positron pairs injected in an external electric field.
Arons, Asséo, Asséo, Cheng, Das, F. Takahara, Fawley, Goldreich, Hinata, K. Asano, Lyubarskii, Misra, Misra, Ruderman, Scharlemann, Shibata, Shibata, Shibata, Sturrock   +18 more
core   +1 more source

Data‐Driven Bulldozer Blade Control for Autonomous Terrain Leveling

Advanced 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, Ganesh Arivoli, Huzaifa Unjhawala, Luning Bakke, Radu Serban, Dan Negrut   +5 more
wiley   +1 more source

Enhanced Regenerative Braking Strategies for Electric Vehicles: Dynamic Performance and Potential Analysis

Energies, 2017
A regenerative braking system and hydraulic braking system are used in conjunction in the majority of electric vehicles worldwide. We propose a new regenerative braking distribution strategy that is based on multi-input fuzzy control logic while ...
Boyi Xiao, Huazhong Lu, Hailin Wang, Jiageng Ruan, Nong Zhang   +4 more
doaj   +1 more source

Physical Mechanisms for the Variable Spin-down of SGR 1900+14 [PDF]

, 1999
We consider the physical implications of the rapid spindown of Soft Gamma Repeater 1900+14, and of the apparent "braking glitch", \Delta P/P = l x 10^-4, that was concurrent with the Aug. 27th giant flare.
Duncan, R. C., Finger, M. H., Kouveliotou, C., Thompson, C., van Paradijs, J., Woods, P. M.   +5 more
core   +3 more sources

Microglial Fkbp5 Impairs Post‐Stroke Vascular Integrity and Regeneration by Promoting Yap1‐Mediated Glycolysis and Oxidative Phosphorylation

Advanced Science, EarlyView.
A post‐stroke perivascular niche of microglia characterized by low expression of M2 markers and elevated glycolysis, oxidative phosphorylation (OXPHOS), and phagocytic activity is identified, which is termed stroke‐activated vascular‐associated microglia (stroke‐VAM).
Yanan Li, Yanmei Qiu, Yunlei Yang, Yanhao Wei, Haokun Peng, Longhai Zeng, Pengcheng Li, Rentang Bi, Bo Hu   +8 more
wiley   +1 more source

Study on influences of brake force distribution to vehicle motions (Numerical calculation of pitch motion and contact forces, and the comparison with experimental results)

Nihon Kikai Gakkai ronbunshu, 2014
Appropriate relation among the inertia, suspension characteristics and brake force distribution will be required for achieving comfortable motion of vehicle and stable contact forces at braking. At a forethought stage where the design concept is decided,
Ryoichi KURASAKO, Goro OBINATA, Kazufumi TORIYA   +2 more
doaj   +1 more source