Results 71 to 80 of about 163,781 (311)

Bifurcation analysis versus maximum force criteria in formability limit assessment of stretched metal sheets [PDF]

, 2014
The present contribution deals with the prediction of diffuse necking in the context of forming and stretching of metal sheets. For this purpose, two approaches are investigated, namely bifurcation and the maximum force principle, with a systematic ...
Geers, MGD Marc, Abed-Meraim, F Farid, Abed-Meraim, F., ABED-MERAIM, Farid, PEERLINGS, Ron, PEERLINGS, Ron H. J., Geers, M.G.D., GEERS, Marc G.D., Peerlings, R.H.J., Peerlings, RHJ Ron   +9 more
core   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Backpropagation Through Soft Body: Investigating Information Processing in Brain–Body Coupling Systems

Advanced Robotics Research, EarlyView.
This study explores how information processing is distributed between brains and bodies through a codesign approach. Using the “backpropagation through soft body” framework, brain–body coupling agents are developed and analyzed across several tasks in which output is generated through the agents’ physical dynamics.
Hiroki Tomioka, Katsuma Inoue, Yasuo Kuniyoshi, Kohei Nakajima   +3 more
wiley   +1 more source

Non-degenerate umbilics, the path formulation and gradient bifurcation problems

, 2004
Parametrised contact-equivalence is successful for the understanding and classification of the qualitative local behaviour of bifurcation diagrams and their perturbations. Path formulation is an alternative point of view.
Sitta, AM, Angela Maria Sitta, Jacques-elie Furter, Furter, JE   +3 more
core  

Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation

Advanced Robotics Research, EarlyView.
A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo, Joshua Davy, James H. Chandler, James Avery, Pietro Valdastri   +4 more
wiley   +1 more source

Optimization of Magnetic Milli‐Spinner for Robotic Endovascular Intervention

Advanced Robotics Research, EarlyView.
This work presents the design optimization of a multifunctional magnetic milli‐spinner for high‐speed propulsion and efficient clot debulking. The optimized design achieves an ultrafast swimming velocity of 55 cm/s (≈175 body lengths/s) in saline water, enabling stable upstream swimming against strong physiological flows and establishing magnetic milli‐
Lu Lu, Luca Higgins, Jack Bernardo, Ruike Renee Zhao   +3 more
wiley   +1 more source

Control-based continuation of unstable periodic orbits [PDF]

, 2009
Copyright © 2010 American Society of Mechanical Engineers (ASME)We present an experimental procedure to track periodic orbits through a fold (saddle-node) bifurcation and demonstrate it with a parametrically excited pendulum experiment where the tracking
Wagg, DJ, Jan Sieber, Krauskopf, B., Neild, Simon, Neild, S., Sieber, J, Wagg, D., Gonzalez-Buelga, Alicia, Simon Neild, Gonzalez-Buelga, A., David Wagg, Wagg, David, Neild, SA, Sieber, J., Bernd Krauskopf, Wagg, D.J., Krauskopf, B, Gonzalez Buelga, A, Alicia Gonzalez-Buelga, Krauskopf, Bernd   +19 more
core   +1 more source

Differential Prognosis of True Bifurcation Lesions According to Left Main Versus Non–Left Main Location and Treatment Strategy

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Although true bifurcation lesions are associated with a high risk of procedural complications, the differential prognostic implications of percutaneous coronary intervention for true bifurcations according to lesion location are unclear.
Ki Hong Choi, Chang‐Wook Nam, Francesco Bruno, Yun‐Kyeong Cho, Leonardo De Luca, Jeehoon Kang, Alessio Mattesini, Young Bin Song, Alessandra Truffa, Hyo‐Soo Kim, Wojciech Wańha, Woo Jung Chun, Sebastiano Gili, Gerard Helft, Seung Hwan Han, Bernardo Cortese, Cheol Hyun Lee, Javier Escaned, Hyuck‐Jun Yoon, Alaide Chieffo, Joo‐Yong Hahn, Guglielmo Gallone, Seung‐Hyuk Choi, Gaetano De Ferrari, Bon‐Kwon Koo, Giorgio Quadri, Seung‐Ho Hur, Fabrizio D'Ascenzo, Hyeon‐Cheol Gwon, Ovidio de Filippo   +29 more
doaj   +1 more source

LC3B Mediated SETDB1‐Accounted Alcoholic Steatohepatitis via Lipidation‐Dependent LAP and Lipidation‐Independent Nuclear Stabilization

Advanced Science, EarlyView.
SETDB1 is progressively downregulated in ALD, correlating with disease severity. SETDB1 deficiency impairs LAP by disrupting Rubicon membrane localization, leading to defective lipid droplet clearance. Concurrently, loss of SETDB1 reduces nuclear LC3B, causing R‐loop accumulation and cGAS‐STING‐driven inflammation. Lipidated LC3B mediates LAP‐dependent
Yi Zhang, Tan Wei, Jiahang Wu, Chuixu Lin, Dongbo Zhu, Yanhui Li, Shuting Shi, Shishun Huang, Leiming Jiang, Hongzhi Wang, Meiqi Song, Pengfei Gao, Xu Wu, Mingjian Fan, Chaofeng Wei, Qian Wang, Lihui Qu, Zhigang Wang   +17 more
wiley   +1 more source

Non-Robust Dynamic Inferences from Macroeconometric Models: Bifurcation Stratification of Confidence Regions [PDF]

Grandmont (1985) found that the parameter space of the most classical dynamic models are stratified into an infinite number of subsets supporting an infinite number of different kinds of dynamics, from monotonic stability at one extreme to chaos at the ...
Barnett, William A., Duzhak, Evgeniya A.
core   +1 more source