Results 151 to 160 of about 531,438 (331)

Learning Highly Dynamic Skills Transition for Quadruped Jumping Through Constrained Space

Advanced Robotics Research, EarlyView.
A quadruped robot masters dynamic jumps through constrained spaces with animal‐inspired moves and intelligent vision control. This hierarchical learning approach combines imitation of biological agility with real‐time trajectory planning. Although legged animals are capable of performing explosive motions while traversing confined spaces, replicating ...
Zeren Luo, Jiahui Zhang, Yimin Han, Ji Ma, Minghao Lu, Ioannis Havoutis, Peng Lu   +6 more
wiley   +1 more source

Stellar Kinematics in the Complicated Inner Spheroid of M31: Discovery of Substructure along the Southeastern Minor Axis and Its Relationship to the Giant Southern Stream [PDF]

, 2007
Karoline M. Gilbert, Mark A. Fardal, J. Kalirai, Puragra Guhathakurta, Marla Geha, J. Isler, Steven R. Majewski, James C. Ostheimer, Richard J. Patterson, David B. Reitzel, Evan N. Kirby, Michael C. Cooper   +11 more
openalex   +1 more source

CLusters in the Uv as EngineS (CLUES). II. Subkiloparsec-scale Outflows Driven by Stellar Feedback

The Astronomical Journal
We analyze the far-ultraviolet (1130−1770 Å rest frame) spectroscopy of 20 young (10 ^4 M _⊙ ) star clusters (YSCs) in 11 nearby star-forming galaxies. We probe the interstellar gas intervening along the line of sight, detecting several metal absorption ...
Mattia Sirressi, Angela Adamo, Matthew Hayes, Thøger Emil Rivera-Thorsen, Alessandra Aloisi, Arjan Bik, Daniela Calzetti, John Chisholm, Andrew J. Fox, Michele Fumagalli, Kathryn Grasha, Svea Hernandez, Matteo Messa, Shannon Osborne, Göran Östlin, Elena Sabbi, Eva Schinnerer, Linda J. Smith, Christopher Usher, Aida Wofford   +19 more
doaj   +1 more source

OASIS High-Resolution Integral Field Spectroscopy of the SAURON Ellipticals and Lenticulars

, 2003
We present a summary of high-spatial resolution follow-up observations of the elliptical (E) and lenticular (S0) galaxies in the SAURON survey using the OASIS integral field spectrograph.
Bacon, R., Bureau, M., Cappellari, M., Copin, Y., Davies, R. L., de Zeeuw, P. T., Emsellem, E., Falcon-Barroso, J., Ferruit, P., Krajnovic, D., Kuntschner, H., McDermid, R., Peletier, R. F., Shapiro, K., Wernli, F.   +14 more
core   +3 more sources

A Low‐Cost Curvature Detection Method for an Untethered Biped Pipeline Climbing Robot with Energy‐Efficient Strategy

Advanced Robotics Research, EarlyView.
A low‐cost pipeline curvature detection method has been proposed for an untethered biped pipeline surface climbing robot (BPCR) system with a five‐degree‐of freedom structure. The BPCR features adaptive vacuum suction cups equipped with multiple laser sensors on the suction modules to detect the curvature of various surfaces.
Zikang Li, Weijian Zhang, Yuan Yin, Qingsong Xu   +3 more
wiley   +1 more source

Local stellar kinematics from RAVE data - II. Radial metallicity gradient [PDF]

, 2011
B. Coşkunoğlu, S. Ak, S. Bilir, S. Karaali, Ö. Önal, E. Yaz, G. Gilmore, G. M. Seabroke   +7 more
openalex   +1 more source

Cosmological Simulations of Stellar Halos with Gaia Sausage–Enceladus Analogs: Two Sausages, One Bun?

The Astrophysical Journal
Observations of the Milky Way’s stellar halo find that it is predominantly comprised of a radially biased population of stars, dubbed the Gaia Sausage–Enceladus, or GSE.
Dylan Folsom, Mariangela Lisanti, Lina Necib, Danny Horta, Mark Vogelsberger, Lars Hernquist   +5 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Scaling relations in early-type galaxies from integral-field stellar kinematics [PDF]

, 2009
Michele Cappellari, Nicholas Scott, Katherine Alatalo, Leo Blitz, Maxime Bois, F. Bournaud, Martin Bureau, Roger L. Davies, Timothy A. Davis, P. T. de Zeeuw, Éric Emsellem, J. Falcón‐Barroso, Sadegh Khochfar, D. Krajnović, H. Kuntschner, P.-Y. Lablanche, Richard M. McDermid, R. Morganti, Thorsten Naab, M. Sarzi, P. Serra, Remco C. E. van den Bosch, Glenn van de Ven, Anne-Marie Weijmans, L. M. Young   +24 more
openalex   +1 more source

Stable Imitation of Multigait and Bipedal Motions for Quadrupedal Robots Over Uneven Terrains

Advanced Robotics Research, EarlyView.
How are quadrupedal robots empowered to execute complex navigation tasks, including multigait and bipedal motions? Challenges in stability and real‐world adaptation persist, especially with uneven terrains and disturbances. This article presents an imitation learning framework that enhances adaptability and robustness by incorporating long short‐term ...
Erdong Xiao, Yinzhao Dong, Ji Ma, Peng Lu   +3 more
wiley   +1 more source